CN114542739B

CN114542739B - Venturi air valve

Info

Publication number: CN114542739B
Application number: CN202210247867.1A
Authority: CN
Inventors: 梁保斌; 李祥; 周涛; 王莉婷; 梁欣
Original assignee: Anhui Sanma Purification Technology Co ltd
Current assignee: Anhui Sanma Purification Technology Co ltd
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2024-04-16
Anticipated expiration: 2042-03-14
Also published as: CN114542739A

Abstract

The invention relates to the technical field of air quantity regulating valves, in particular to a venturi air valve. It includes the blast gate, and the blast gate includes at least: the pipeline comprises a sleeve, the sleeve is provided with a plurality of side posts, an inner pipe is arranged in the sleeve, the inner pipe is provided with a middle opening, the inner pipe is provided with a port, the inner pipe is provided with an end ring, and the end ring is provided with side openings; the inner frame comprises a first frame and a second frame, a first column is erected on the first frame, a through hole is formed in the second frame, a servo motor is arranged in the first column, one side of the servo motor is in transmission connection with a connecting shaft, an adjusting body is arranged on the surface of the connecting shaft, the adjusting body comprises a movable frame, the movable frame is provided with a screw hole, the movable frame is connected with a plurality of connecting frames, the other end of the connecting frame is connected with a sliding plate, a first sliding groove is formed in the second frame, an inner groove is formed in the surface of the connecting frame, a shielding body is arranged in the inner groove, the shielding body comprises supports, and elastic bands are connected between the supports. The invention mainly provides a Venturi air valve with adjustable ventilation quantity.

Description

Venturi air valve

Technical Field

The invention relates to the technical field of air quantity regulating valves, in particular to a venturi air valve.

Background

The air quantity regulating valve is an indispensable central air conditioning terminal fitting in ventilation, air conditioning and air purification engineering of civil buildings of industrial plants, is generally used in air conditioning and ventilation system pipelines, is used for regulating the air quantity of branch pipes, and can also be used for mixing and regulating fresh air and return air, and the principle of Venturi effect is that when the air blows through a barrier, the air pressure near an end port above the lee surface of the barrier is relatively low, so that adsorption effect is generated and air flow is caused, and the air valve prepared according to Venturi effect can be called as Venturi air valve.

The air valve needs to adjust the air flow, so that the change of the ventilation mode is controlled in various environments, however, the existing air valve only has two states of opening and closing, and cannot adjust the air flow, so that the effect is not ideal in actual use, and therefore, a Venturi air valve is needed.

Disclosure of Invention

The invention aims to provide a venturi air valve, which solves the problems in the prior art.

In order to achieve the above object, the present invention provides a venturi air valve, including an air volume valve, the air volume valve at least includes:

The pipeline comprises a sleeve, side posts are symmetrically arranged on the side surfaces of two ends of the sleeve, an inner pipe is arranged in the sleeve, a middle opening is formed in the middle of the inner pipe, ports penetrating through the surfaces of the inner pipe are formed in two ends of the inner pipe, the cross section area of the middle opening is smaller than that of the ports, end rings are arranged at two ends of the surface of the inner pipe, the side openings are formed in the end rings, and the side openings are in plug-in fit with the side posts;

The inner frame, the inner frame is including being located a frame in the port and being located two frames in the middle part mouth, a frame middle part is equipped with a post, a post other end with No. two frames are connected, no. two frame middle parts have been seted up the through-hole that runs through its surface, be equipped with servo motor in the post, servo motor one side transmission is connected with the connecting axle, connecting axle one end is located in the through-hole, the connecting axle surface is equipped with the regulator, the regulator is including removing the frame, remove the frame middle part and seted up the screw hole that runs through its surface, the screw hole with connecting axle threaded connection, remove frame one side and be connected with four link, the link other end is connected with the slide, no. two frames have been seted up and have been run through its surface a spout, a spout with slide sliding connection, the inner tank has been seted up on the link surface, four have the shelter between the link, the shelter is including locating the embedded support of inner tank, elastic band is connected between the support.

As a further improvement of the technical scheme, a second sliding groove penetrating through the surface of the second sliding groove is formed in one end, close to the second frame, of the first column, the second sliding groove is a cross-shaped structure groove, a clamping groove is correspondingly formed in the movable frame, the clamping groove is a square groove, the movable frame is located in the second sliding groove, and the movable frame is in sliding connection with the second sliding groove.

As a further improvement of the technical scheme, the clamping grooves are symmetrically provided with round penetrating holes penetrating through the surface of the clamping grooves, one side of each sliding plate is provided with a shaft groove, each shaft groove is a C-shaped plate provided with a round penetrating hole, two ends of each connecting frame are symmetrically provided with rotating shafts, one end of each connecting frame is rotatably connected with each clamping groove, and the other end of each connecting frame is rotatably connected with each shaft groove.

As a further improvement of the technical scheme, an inner rod is arranged in the first sliding groove, a plate opening penetrating through the surface of the sliding plate is correspondingly formed in the sliding plate, the plate opening is a round penetrating opening, the inner rod penetrates through the plate opening, a tension spring is arranged on one side of the surface of the sliding plate, the tension spring is sleeved on the surface of the inner rod, and the tension spring is connected with the first sliding groove.

As a further improvement of the technical scheme, a side end body is arranged at a port, far away from one end of the servo motor, in the inner tube, and comprises a side end frame arranged in the port, wherein a cylindrical raised cross structure is arranged on one side of the middle part of the side end frame, a frame groove is formed in the cylindrical raised part of the side end frame, the frame groove is communicated with the through hole, a limiting groove is symmetrically formed in the inner surface of the frame groove, a connecting body is connected with one end of the connecting shaft in a sliding manner in the limiting groove, a plurality of pull ropes are connected with the other end of the connecting body, a displacement groove is formed in the surface of the side end frame, a plugging body is arranged in the displacement groove, the plugging body comprises a plurality of plugging plates, one side of each plugging plate is provided with a sliding block, and one side of each sliding block is connected with the corresponding pull rope.

As a further improvement of the technical scheme, a plurality of support plates are symmetrically connected to one end surface of the inner tube, which is close to the side end frame, one end of each support plate is connected with a support rod, a support opening is formed in the middle of the surface of each closure plate, the support opening is a circular through opening, the support opening is in plug-in connection with the support rod, an auxiliary spring is sleeved on the surface of each support rod, one end of each auxiliary spring is connected with each support plate, and the other end of each auxiliary spring is connected with the closure plate.

As a further improvement of the technical scheme, the side surface of the plugging plate is provided with a contact groove, the contact groove is a square groove with a cylindrical structure groove formed in the surface, a rubber plate is arranged in the contact groove, one side of the rubber plate is provided with an inserting shaft, and the inserting shaft is in inserting fit with the contact groove.

As a further improvement of the technical scheme, one end of the inner tube is provided with a filter body, the filter body comprises an outer ring, the outer ring is in sleeve joint with one end of the inner tube, an outer disc is arranged in the outer ring, a through groove penetrating through the surface of the outer disc is formed in the outer disc, the through groove is a square penetrating opening, and a plurality of grid plates are arranged in the through groove.

As a further improvement of the technical scheme, a baffle is arranged on one side, close to the inner tube, in the through groove, of the outer disc, a disc opening is formed in the outer disc, a screw is rotationally connected in the disc opening, two ends of the screw penetrate through the outer ring, the middle of the screw penetrates through the baffle, and the screw is in threaded connection with the baffle.

Compared with the prior art, the invention has the beneficial effects that:

1. in this venturi blast gate, through making servo motor pass through the drive connecting axle, can drive and remove the frame and remove along No. two spouts to be convenient for drive the link and expand, make the elastic band tensile, change the ventilation sectional area in the middle part mouth, thereby be convenient for to the regulation of amount of wind.

2. In the Venturi air valve, the side end body and the blocking body are arranged, so that when the servo motor controls the movable frame through the connecting shaft to further drive the elastic band to be unfolded, and the ventilation area in the middle opening is reduced, the connecting shaft drives the connecting body to slide in the limiting groove, so that the connecting body drives the sliding block to move along the displacement groove through the pull rope until the four blocking plates are combined to block the port, and the blocking in the inner pipe is ensured.

3. In the Venturi air valve, the screw rod drives the baffle plate in threaded connection with the screw rod to move in the through groove by rotating the screw rod, so that the baffle plate changes the air flow area of the through groove, and the air inlet quantity of the inner pipe is convenient to adjust.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a pipe portion according to the present invention;

FIG. 3 is a schematic view of two cross-sectional structures of a pipe portion according to the present invention;

FIG. 4 is a schematic cross-sectional view of an inner frame portion of the present invention;

FIG. 5 is a schematic view of two structures of the inner frame part of the present invention;

FIG. 6 is a schematic view of a regulator structure according to the present invention;

FIG. 7 is a schematic view of a shelter structure according to the present invention;

FIG. 8 is a schematic cross-sectional view of a side end body according to the present invention;

FIG. 9 is a schematic view of a closure body according to the present invention;

FIG. 10 is a schematic view of a filter structure according to the present invention;

fig. 11 is a schematic diagram of the inner tank and the bracket according to the present invention.

The meaning of each reference sign in the figure is:

1. An air quantity valve;

11. a pipe; 111. a sleeve; 112. a side column; 113. an inner tube; 114. a middle opening; 115. a port; 116. an end ring; 117. a side port;

12. an inner frame; 121. a first frame; 122. a second frame; 123. a first column; 124. a through port; 125. a servo motor; 126. a connecting shaft; 127. a first chute; 128. a second chute; 129. an inner rod;

13. A regulating body; 131. a moving rack; 132. a screw; 133. a connecting frame; 134. a slide plate; 135. an inner tank; 136. a clamping groove; 137. a shaft groove; 138. a rotating shaft; 139. a plate opening;

14. A shielding body; 141. a bracket; 142. an elastic band;

15. a side end body; 151. a side end frame; 152. a rack groove; 153. defining a slot; 154. a connecting body; 155. a pull rope; 156. a displacement groove;

16. a blocking body; 161. a closure plate; 162. a slide block; 163. a support plate; 164. a support rod; 165. a support opening; 166. an auxiliary spring; 167. a contact groove; 168. a rubber plate; 169. inserting a shaft;

17. A filter body; 171. an outer ring; 172. an outer disk; 173. a through groove; 174. a grid plate; 175. a baffle; 176. a disc opening; 177. and (3) a screw.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-7, an objective of the present embodiment is to provide a venturi air valve, which includes an air valve 1, wherein the air valve 1 at least includes:

The pipeline 11, pipeline 11 includes sleeve pipe 111, sleeve pipe 111 is tubular structure, sleeve pipe 111 both ends side surface symmetry is equipped with a plurality of side posts 112, side posts 112 are the cylinder, be equipped with inner tube 113 in the sleeve pipe 111, inner tube 113 is the cylinder, middle part mouth 114 has been seted up at the middle part in the inner tube 113, port 115 that runs through its surface has been seted up at inner tube 113 both ends, middle part mouth 114 and port 115 are circular wearing mouth, the cross-sectional area of middle part mouth 114 is less than the cross-sectional area of port 115, the both ends of inner tube 113 surface are equipped with end ring 116, end ring 116 is the annular plate, end ring 116 has seted up side mouth 117, side mouth 117 is circular wearing mouth, side mouth 117 and side post 112 grafting cooperation, can avoid inner tube 113 to take place the rotation in sleeve pipe 111 through the mode of grafting cooperation;

the inner frame 12, the inner frame 12 includes a first frame 121 located in the port 115 and a second frame 122 located in the middle opening 114, the first frame 121 and the second frame 122 are of a cross structure, a first column 123 is arranged in the middle of the first frame 121, the first column 123 is a cylinder with a cylindrical structure groove formed inside, the other end of the first column 123 is connected with the second frame 122, a through opening 124 penetrating through the surface of the second frame 122 is formed in the middle of the second frame 122, the through opening 124 is a circular through opening, a servo motor 125 is arranged in the first column 123, one side of the servo motor 125 is in transmission connection with a connecting shaft 126, one end of the connecting shaft 126 is located in the through opening 124, an adjusting body 13 is arranged on the surface of the connecting shaft 126, the adjusting body 13 comprises a movable frame 131, the movable frame 131 is of a cross structure, a screw opening 132 penetrating through the surface of the movable frame 131 is formed in the middle, the screw opening 132 is a circular through opening with internal threads, the screw opening 132 is in threaded connection with the connecting shaft 126, one side of the movable frame 131 is connected with four connecting frames 133, the connecting frames 133 are strip-shaped square plates, the other ends of the connecting frames 133 are connected with sliding plates 134, the sliding plates 134 are circular plates, the second frame 122 is provided with a first sliding groove 127 penetrating through the surface of the second frame, the first sliding groove 127 is a cylindrical structure groove, the first sliding groove 127 is in sliding connection with the sliding plates 134, the surface of the connecting frames 133 is provided with an inner groove 135, the inner groove 135 is a square groove, as shown in fig. 11, the four inner grooves 135 are sequentially named as a groove A, a groove B, a groove C and a groove D according to the clockwise rotation direction, a shielding body 14 is arranged between the four connecting frames 133, the shielding body 14 comprises four brackets 141, the brackets 141 are square plates, the four brackets 141 are sequentially named as a bracket A, a bracket B, a bracket C and a bracket D according to the clockwise rotation direction, the bracket A is embedded in the groove A, the bracket B is embedded in the groove B, the bracket C is embedded in the groove C, the bracket D is embedded in the groove D, elastic bands 142 are connected between the brackets AB, BC, CD and DA.

When the air flow cross-section of the port 115 is larger than that of the middle port 114, the air is sucked into the middle port 114 from the port 115 by the venturi effect, so that the air flow rate is accelerated, when the ventilation amount in the air quantity valve 1 needs to be regulated, the servo motor 125 drives the connecting shaft 126 to rotate, the connecting shaft 126 drives the movable frame 131 in threaded connection with the connecting shaft 126 to move along the second chute 128, and when the movable frame 131 moves, the movable frame 133 in rotary connection with the movable frame 131 drives the sliding plate 134 to move along the inner rod 129 in the first chute 127, so that the angle of the connecting frame 133 relative to the first column 123 is changed, the connecting frame 133 is gathered or scattered, the elastic belt 142 is driven to shrink or expand, the ventilation cross-section in the middle port 114 can be changed by the shrinkage expansion of the elastic belt 142, and the ventilation amount in the middle port 114 can be regulated.

The principle of the venturi effect is that when wind blows over the barrier, the air pressure near the port above the lee side of the barrier is relatively low, thereby creating an adsorption and causing the flow of air, i.e. the air flow is reduced from coarse to speed up the flow rate of the gas, causing the gas to form a "vacuum" zone on the rear side of the venturi outlet.

Further, in order to facilitate the adjustment of the ventilation sectional area in the inner tube 113, the first pillar 123 is close to the second frame 122 and one end is provided with the second chute 128 penetrating through the surface of the second frame 122, the second chute 128 is a cross-shaped structure groove, the movable frame 131 is correspondingly provided with the clamping groove 136, the clamping groove 136 is a square groove, the movable frame 131 is positioned in the second chute 128, the movable frame 131 is slidably connected with the second chute 128, and the servo motor 125 can drive the movable frame 131 to move along the second chute 128 by driving the connecting shaft 126, so that the connecting frame 133 is conveniently driven to be unfolded, the elastic band 142 is stretched, the ventilation sectional area in the middle opening 114 is changed, and the air volume is conveniently adjusted.

Further, in order to facilitate the unfolding of the connecting frame 133, the clamping groove 136 is symmetrically provided with a circular through hole penetrating through the surface of the connecting frame, one side of the sliding plate 134 is provided with the shaft groove 137, the shaft groove 137 is a C-shaped plate provided with the circular through hole, two ends of the connecting frame 133 are symmetrically provided with the rotating shafts 138, the rotating shafts 138 at one end of the connecting frame 133 are rotationally connected with the clamping groove 136, the rotating shafts 138 at the other end of the connecting frame 133 are rotationally connected with the shaft groove 137, when the moving frame 131 moves, the connecting frame 133 rotationally connected drives the sliding plate 134 to slide in the first sliding groove 127, the angle of the connecting frame 133 changes, and the connecting frame 133 is converted from gathering into scattering, so that the unfolding of the connecting frame 133 is facilitated.

Still further, in order to overcome the resistance of the sliding plate 134 during sliding and the tension of the elastic band 142 during stretching, the first sliding groove 127 is internally provided with an inner rod 129, the sliding plate 134 is correspondingly provided with a plate opening 139 penetrating through the surface of the sliding plate, the plate opening 139 is a round penetrating opening, the inner rod 129 penetrates through the plate opening 139, one side of the surface of the sliding plate 134 is provided with a tension spring, the tension spring is sleeved on the surface of the inner rod 129, and the tension spring is connected with the first sliding groove 127 in an inner way and is provided with the tension spring, so that the sliding resistance and the tension are overcome during the movement of the sliding plate 134 under the action of the elasticity of the tension spring, and the sliding of the sliding plate 134 is facilitated.

Example 2

Referring to fig. 8-9, the following modifications are made on the basis of embodiment 1 in this embodiment, considering that the elastic band 142 cannot completely block the middle opening 114, so that the inner tube 113 cannot isolate the passage of air:

Wherein, in order to ensure the plugging of the inner tube 113, the port 115 of the inner tube 113 far away from one end of the servo motor 125 is provided with a side end body 15, the side end body 15 comprises a side end frame 151 positioned in the port 115, the side end frame 151 is of a cross structure with a cylindrical bulge at one side in the middle, a frame groove 152 is arranged in the cylindrical bulge of the side end frame 151, the frame groove 152 is a circular penetrating opening, the frame groove 152 is communicated with the through opening 124, the inner surface of the frame groove 152 is symmetrically provided with a limiting groove 153, the limiting groove 153 is a semi-cylindrical structure groove, a connecting body 154 is slidably connected in the limiting groove 153, the connecting body 154 is a cylinder with a semi-cylindrical bulge on the surface, the middle of one side surface of the connecting body 154 is provided with a threaded circular penetrating opening, the connecting body 154 is in threaded connection with one end of the connecting shaft 126, the other end of the connecting body 154 is connected with a plurality of pull ropes 155, the surface of the side end frame 151 is provided with a displacement groove 156, the displacement groove 156 is a square groove, the blocking body 16 is arranged in the displacement groove 156, the blocking body 16 comprises a plurality of blocking plates 161, the blocking plates 161 are of a quarter cylinder structure, one side of each blocking plate 161 is provided with a sliding block 162, each sliding block 162 is of a square structure, each sliding block 162 is in sliding connection with the displacement groove 156, one side of each sliding block 162 is connected with a pull rope 155, the side end bodies 15 and the blocking body 16 are arranged, when the servo motor 125 controls the movable frame 131 through the connecting shaft 126 to drive the elastic belt 142 to expand, and when the ventilation area in the middle opening 114 is reduced, one end of the connecting shaft 126 drives the connecting body 154 to slide in the limiting groove 153 in a threaded connection mode, so that the connecting body 154 drives the sliding blocks 162 to move along the displacement groove 156 through the pull ropes 155 until the four blocking plates 161 are combined to form a complete cylinder, and the ports 115 are blocked, and accordingly the blocking of the inner pipe 113 is ensured.

Further, in order to facilitate the restoration of the closure plate 161, a plurality of support plates 163 are symmetrically connected to one end surface of the inner tube 113 close to the side end frame 151, the support plates 163 are L-shaped structural plates, one end of each support plate 163 is connected with a support rod 164, a support opening 165 is formed in the middle of the surface of the closure plate 161, the support opening 165 is a circular through opening, the support opening 165 is in plug-in fit with the support rod 164, an auxiliary spring 166 is sleeved on the surface of the support rod 164, one end of the auxiliary spring 166 is connected with the support plate 163, the other end of the auxiliary spring 166 is connected with the closure plate 161, and the closure plate 161 can slide along the support rod 164 under the action of the pull force of the auxiliary spring 166 in a plug-in fit manner, so that the restoration of the closure plate 161 is facilitated.

Further, in order to ensure the blocking effect of the blocking plate 161, the side surface of the blocking plate 161 is provided with a contact groove 167, the contact groove 167 is a square groove with a cylindrical structure groove formed in the surface, a rubber plate 168 is arranged in the contact groove 167, one side of the rubber plate 168 is provided with a plug shaft 169, the plug shaft 169 is in plug-in fit with the contact groove 167, and the rubber plate 168 is arranged so as to fill a gap between the blocking plate 161 and an adjacent blocking plate 161, thereby ensuring the blocking effect of the blocking plate 161, and the rubber plate 168 can be prevented from falling off by adopting a plug-in fit mode.

Example 3

Referring to fig. 10, since the suction force attracts impurities in the air to enter the inner tube 113, which causes the inner tube 113 to be blocked, the present embodiment is modified based on the embodiment 1 as follows:

In order to avoid impurities entering the inner tube 113, one end of the inner tube 113 is provided with a filter 17, the filter 17 comprises an outer ring 171, the outer ring 171 is an annular body, the outer ring 171 is in sleeve joint with one end of the inner tube 113, an outer disc 172 is arranged in the outer ring 171, the outer disc 172 is a cylinder, a through groove 173 penetrating through the surface of the outer disc 172 is formed in the outer disc 172, the through groove 173 is a square through hole, a plurality of grid plates 174 are arranged in the through groove 173, the grid plates 174 are strip-shaped square plates, and the filter 17 is arranged, so that impurities in the air are intercepted by the grid plates 174 when the air flows through the through groove 173, and the impurities entering the inner tube 113 can be avoided.

Further, in order to facilitate the adjustment of the air intake of the inner pipe 113, a baffle 175 is disposed in the through groove 173 near one side of the inner pipe 113, the baffle 175 is a square plate with a plurality of square through holes, the outer disc 172 is provided with a disc hole 176, the disc hole 176 is a circular through hole, the disc hole 176 is rotationally connected with a screw 177, two ends of the screw 177 penetrate through the outer ring 171, the middle of the screw 177 penetrates through the baffle 175, the screw 177 is in threaded connection with the baffle 175, and by adopting a threaded connection mode, the screw 177 drives the baffle 175 in threaded connection with the screw 177 to move in the through groove 173, so that the baffle 175 changes the air flow area of the through groove 173, thereby facilitating the adjustment of the air intake of the inner pipe 113.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A venturi blast gate, characterized in that: the air volume valve comprises an air volume valve (1), wherein the air volume valve (1) at least comprises:

The pipeline (11), pipeline (11) include sleeve pipe (111), sleeve pipe (111) both ends lateral surface symmetry is equipped with a plurality of jambs (112), be equipped with inner tube (113) in sleeve pipe (111), middle part mouth (114) have been seted up at the middle part in inner tube (113), port (115) that run through its surface have been seted up at inner tube (113) both ends, the cross-sectional area of middle part mouth (114) is less than the cross-sectional area of port (115), inner tube (113) surface both ends are equipped with end ring (116), end ring (116) have seted up side port (117), side port (117) with jamb (112) grafting cooperation;

the inner frame (12), inner frame (12) is including being located frame (121) and being located in port (115) No. two frames (122) in middle part mouth (114), no. one frame (121) middle part is equipped with a post (123), no. one post (123) other end with No. two frames (122) are connected, no. two frames (122) middle part has been seted up through its surface's through-hole (124), be equipped with servo motor (125) in No. one post (123), servo motor (125) one side transmission is connected with connecting axle (126), connecting axle (126) one end is located in through-hole (124), connecting axle (126) surface is equipped with regulator (13), regulator (13) are including removing frame (131), remove frame (131) middle part and have been seted up through its surface's screw (132), screw (132) with connecting axle (126) threaded connection, remove frame (131) one side and be connected with four connecting frames (135), no. two connecting frames (133) have been seted up through-hole (133) on one side, no. 127) have been seted up on one side of connecting axle (135) and have been seted up on the surface of slide (127), a shielding body (14) is arranged among the four connecting frames (133), the shielding body (14) comprises brackets (141) embedded in the inner groove (135), and elastic bands (142) are connected between the brackets (141);

A side end body (15) is arranged at a port (115) far away from one end of the servo motor (125) in the inner tube (113), the side end body (15) comprises a side end frame (151) positioned in the port (115), the side end frame (151) is of a cross structure with a cylindrical bulge at one side, a frame groove (152) is formed in the cylindrical bulge of the side end frame (151), the frame groove (152) is communicated with the through hole (124), a limiting groove (153) is symmetrically formed in the inner surface of the frame groove (152), a connecting body (154) is connected in a sliding manner in the limiting groove (153), the connecting body (154) is in threaded connection with one end of the connecting shaft (126), a plurality of pull ropes (155) are connected at the other end of the connecting body (154), a displacement groove (156) is formed in the surface of the side end frame (151), a sealing body (16) is arranged in the displacement groove (156), the sealing body (16) comprises a plurality of plates (161), one side of the sliding plates (161) is provided with the sliding blocks (162), and one side of the sliding blocks (162) is connected with the sliding blocks (162);

The inner tube (113) is close to the surface of one end of the side end frame (151) and is symmetrically connected with a plurality of support plates (163), one end of each support plate (163) is connected with a support rod (164), a support opening (165) is formed in the middle of the surface of each blocking plate (161), each support opening (165) is a round through opening, each support opening (165) is in plug-in fit with each support rod (164), an auxiliary spring (166) is sleeved on the surface of each support rod (164), one end of each auxiliary spring (166) is connected with each support plate (163), and the other end of each auxiliary spring (166) is connected with each blocking plate (161);

The utility model discloses a plug board, including plug board (161), contact groove (167) have been seted up to plug board (161) side surface, contact groove (167) are the square groove that the surface had seted up the cylinder structure recess, be equipped with rubber board (168) in contact groove (167), rubber board (168) one side is equipped with inserts axle (169), insert axle (169) with contact groove (167) grafting cooperation.

2. The venturi air valve according to claim 1, wherein: the utility model discloses a sliding device for a mobile phone, including a frame (122), a post (123), a movable frame (131), a square groove, a sliding groove (128) is seted up near No. two posts (123) No. two posts (122) one end is seted up and is run through No. two spouts (128) on its surface, no. two spouts (128) are cross structure recess, draw-in groove (136) have been seted up correspondingly to movable frame (131), draw-in groove (136) are square groove, movable frame (131) are located No. two spouts (128), movable frame (131) with No. two spout (128) sliding connection.

3. The venturi air valve according to claim 2, wherein: the circular through holes penetrating through the surface of the clamping groove (136) are symmetrically formed in the clamping groove, an axle groove (137) is formed in one side of the sliding plate (134), the axle groove (137) is a C-shaped plate with the circular through holes, rotating shafts (138) are symmetrically arranged at two ends of the connecting frame (133), the rotating shafts (138) at one end of the connecting frame (133) are rotationally connected with the clamping groove (136), and the rotating shafts (138) at the other end of the connecting frame (133) are rotationally connected with the axle groove (137).

4. The venturi air valve according to claim 1, wherein: an inner rod (129) is arranged in the first sliding groove (127), a plate opening (139) penetrating through the surface of the sliding plate (134) is correspondingly formed, the plate opening (139) is a round penetrating opening, the inner rod (129) penetrates through the plate opening (139), a tension spring is arranged on one side of the surface of the sliding plate (134), the tension spring is sleeved on the surface of the inner rod (129), and the tension spring is connected with the first sliding groove (127).

5. The venturi air valve according to claim 1, wherein: the utility model discloses a filter, including inner tube (113), inner tube (113) one end is equipped with filter body (17), filter body (17) include outer loop (171), outer loop (171) with inner tube (113) one end cup joints the cooperation, be equipped with outer dish (172) in outer loop (171), outer dish (172) are seted up through groove (173) that run through its surface, through groove (173) are square wearing mouth, be equipped with a plurality of grid boards (174) in through groove (173).

6. The venturi air valve according to claim 5, wherein: a baffle (175) is arranged on one side, close to the inside of the inner pipe (113), of the through groove (173), a disc opening (176) is formed in the outer disc (172), a screw (177) is connected with the disc opening (176) in a rotating mode, two ends of the screw (177) penetrate through the outer ring (171), the middle of the screw (177) penetrates through the baffle (175), and the screw (177) is in threaded connection with the baffle (175).