阅读说明：本技术 可切换气道的节能消音风嘴 (Energy-saving silencing air nozzle capable of switching air passages ) 是由 周治任 陈�胜 于 2019-11-19 设计创作，主要内容包括：本发明公开了一种可切换气道的节能消音风嘴,涉及医疗器械吹干技术,包括：用于与外接输气设备连接的连接部,具有第一切换状态结构和第二切换状态结构的气道切换部,用于对气流进行第一次分流的第一分流部,用于对气流进行第二次分流的第二分流部,与所述第二分流部连接的导流部,利用设置的气道切换部及相应的气道结构设置,可实现对可切换气道的节能消音风嘴对喷出的气流的切换：气流可沿导流面吹往预设方向,亦可直接通过第六气道向指向的方向吹送,由此,利用本发明的可切换气道的节能消音风嘴可实现对各类医疗器械结构进行适应性地吹干,丰富应用场景,有助于提升干燥效率。(The invention discloses an energy-saving silencing air nozzle capable of switching air passages, which relates to the blow-drying technology of medical instruments and comprises the following components: a switching of energy-conserving amortization tuyere to spun air current for being connected with external gas transmission equipment, the air flue switching part that has first switching state structure and second switching state structure for carry out the first reposition of redundant personnel portion of reposition of redundant personnel to the air current, be used for carrying out the second reposition of redundant personnel portion of reposition of redundant personnel to the air current, with the water conservancy diversion portion that second reposition of redundant personnel portion is connected, utilize the air flue switching part that sets up and corresponding air flue structure setting, can realize the switching of energy-conserving amortization tuyere to the changeable air flue to spun air current: the air flow can be blown to the preset direction along the flow guide surface and can also be blown to the pointed direction directly through the sixth air passage, so that the energy-saving silencing air nozzle with the switchable air passages can be used for adaptively drying various medical appliance structures, application scenes are enriched, and the drying efficiency is improved.)

1. An energy-saving silencing air nozzle capable of switching air passages, which is characterized by comprising:

the connecting part is used for being connected with external gas transmission equipment and comprises a first base body and a first gas channel arranged in the first base body, wherein the first gas channel comprises a gas inlet port and a gas outlet port;

the air channel switching part is provided with a first switching state structure and a second switching state structure and comprises a second base body, and a plurality of first switching air channels and second switching air channels which are arranged on the second base body; in a first switching state structure, one end of the first switching air passage is communicated with the first air passage, and the second switching air passage is blocked from the first air passage; under a second switching state structure, one end of the second switching air passage is communicated with the first air passage, and the first switching air passage and the first air passage form airflow obstruction;

the first diversion part is used for conducting first diversion on airflow and comprises a third base body, a plurality of second air passages and a third air passage, wherein the plurality of second air passages and the third air passages are formed in the third base body; the second switching air passage is used for correspondingly guiding the air flow output from the air outlet port to the third air passage in a second switching state structure;

the second flow dividing part is used for dividing the airflow for the second time and comprises a fourth base body, and an annular cavity, a fourth air passage and a plurality of fifth air passages which are arranged in the fourth base body, wherein the annular cavity is communicated with the other end of the second air passage in a first switching state structure; the fourth air passage is communicated with the other end of the third air passage in a second switching state structure; the plurality of fifth air passages comprise one ends communicated with the annular cavity and the other ends communicated with the outside;

the flow guide part is connected with the second flow dividing part and comprises a free end and a connecting end connected with the second flow dividing part; each fifth air passage in the plurality of fifth air passages is arranged around the connecting end; a flow guide surface for guiding the air flow output from the fifth air passages to a preset direction is arranged between the free end and the connecting end;

and a sixth air passage is also arranged in the flow guide part and communicated with the fourth air passage, and the axis of the air passage of the sixth air passage is intersected with the preset direction.

2. The energy-saving silencing blast nozzle with switchable air flue of claim 1, wherein the air flue switching part is provided at a position between the connecting part and the first flow dividing part;

the second base body is rotatably arranged between the first base body and the third base body, and when the second base body rotates to a first preset angle, the air channel switching part is in a first switching state structure; when the second base body rotates to a second preset angle, the air channel switching part is in a second switching state structure;

the first switching air passages are obliquely arranged in the second base body, and the axis intersection points of the air passages of the first switching air passages are positioned in the first air passages when the air passage switching part is in a first switching state structure;

the second switching air passage is positioned among the plurality of first switching air passages, and the air passage switching part is in a first switching state structure, and the air passage axis of the second switching air passage is intersected with the air passage axis of the first air passage.

3. The switchable air passage energy-saving silencing air nozzle according to claim 2, wherein in the first switching state structure, the air passage axis of the second switching air passage perpendicularly intersects with the air passage axis of the first air passage.

4. The switchable air flue energy-saving silencing air nozzle according to claim 2, wherein the plurality of first switching air flues comprises two first switching air flues, and the two first switching air flues are respectively arranged at two sides of the second switching air flue and have an axisymmetric structure relative to the second switching air flue.

5. The energy-saving silencing blast nozzle with switchable air flue as claimed in claim 2, wherein a stem is further disposed on the air flue switching part, and the stem is fixedly connected with the second base; the lever handle is also provided with a shifting sheet.

6. The energy-saving silencing air nozzle with the switchable air flue of claim 2, wherein the flow guiding part comprises a circular truncated cone base body, the circular truncated cone cross section of the circular truncated cone base body is located on one side far away from the annular cavity, and the circular truncated cone side surface of the circular truncated cone base body is the flow guiding surface.

7. The switchable air flue energy-saving silencing blast nozzle according to claim 6, wherein the connecting portion, the first flow dividing portion, the second flow dividing portion and the flow guiding portion are integrally formed.

8. The energy-saving noise-reducing air nozzle with the switchable air flue as claimed in claim 6, wherein a hexagonal nut is further sleeved on the first base body, and the hexagonal nut is sleeved on one side of the first base body at a position close to the annular cavity.

9. The energy-saving noise-reducing air nozzle with switchable air passages as claimed in claim 6, wherein the plurality of second air passages are obliquely opened on the third base, and each air passage of the plurality of second air passages is in one-to-one butt communication with each air passage of the plurality of first switching air passages in the first switching state structure by the air passage switching part.

10. The energy-saving silencing blast nozzle with switchable air flue of claim 1, wherein the air flue switching part is provided at a position between the connecting part and the first flow dividing part;

the second base body is inserted between the first base body and the third base body, and when the second base body is inserted to a first preset distance, the air channel switching part is in a first switching state structure; when the second base body is inserted to a second preset distance, the air passage switching part is in a second switching state structure;

the plurality of first switching air passages are positioned on one side of the second switching air passage.

11. The energy-saving noise-reducing air nozzle with the switchable air passage as claimed in claim 10, wherein a push plate is further disposed on the air passage switching portion, and the push plate is fixedly connected to the second substrate.

12. The switchable air flue energy-saving silencing air nozzle according to any one of claims 1 to 11,

the fourth base body comprises a sleeve body, a supporting part connected with the third base body and a shaft body connected with the supporting part, the shaft body is positioned in the sleeve body, and the outer wall of the shaft body and the inner wall of the sleeve body form the annular cavity;

the fourth air passage is arranged in the shaft body.

13. The switchable air passage energy-saving noise-reducing air nozzle according to claim 12, wherein the shaft body is located in the middle of the fourth base body, and the air passage axis of the fourth air passage coincides with the air passage axis of the first air passage.

14. The energy-saving silencing air nozzle with switchable air passages as claimed in claim 13, wherein in the longitudinal cross-sectional structure of the inner wall of the sleeve, a first oblique edge and a second oblique edge inclined towards the outer wall of the sleeve are formed on the inner wall of the sleeve, the first oblique edge and the second oblique edge meet in the direction from the inner wall of the sleeve to the outer wall of the sleeve, and the second oblique edge is located at a side close to the flow guide part;

the plurality of fifth air passages are formed in the second oblique edge, and hole shafts of the plurality of fifth air passages are parallel to the axis of the air passage of the first air passage.

Technical Field

The invention relates to a blow-drying technology of medical instruments, in particular to an energy-saving silencing air nozzle with a switchable air passage.

Background

In the cleaning technology of medical instruments, a drying process for drying various cleaned instruments is often involved. In accomplishing current common drying process in-process, some apparatus can not reach a fine drying effect, and mostly export the air current through a tuyere in order to sweep the apparatus, the evaporation of water on the acceleration apparatus to reach dry purpose. However, the existing air nozzle cannot provide good drying effect for medical instruments with different structures during the period of outputting air flow, and the adaptability is poor.

Disclosure of Invention

The invention provides an energy-saving silencing air nozzle with a switchable air passage, aiming at the problem that the existing air nozzle cannot provide good drying effect on medical instruments with different structures.

The technical scheme provided by the invention for the technical problem is as follows:

an energy-saving silencing tuyere with switchable air passages, comprising:

the connecting part is used for being connected with external gas transmission equipment and comprises a first base body and a first gas channel arranged in the first base body, wherein the first gas channel comprises a gas inlet port and a gas outlet port;

the air channel switching part is provided with a first switching state structure and a second switching state structure and comprises a second base body, and a plurality of first switching air channels and second switching air channels which are arranged on the second base body; in a first switching state structure, one end of the first switching air passage is communicated with the first air passage, and the second switching air passage is blocked from the first air passage; under a second switching state structure, one end of the second switching air passage is communicated with the first air passage, and the first switching air passage and the first air passage form airflow obstruction;

the first diversion part is used for conducting first diversion on airflow and comprises a third base body, a plurality of second air passages and a third air passage, wherein the plurality of second air passages and the third air passages are formed in the third base body; the second switching air passage is used for correspondingly guiding the air flow output from the air outlet port to the third air passage in a second switching state structure;

the second flow dividing part is used for dividing the airflow for the second time and comprises a fourth base body, and an annular cavity, a fourth air passage and a plurality of fifth air passages which are arranged in the fourth base body, wherein the annular cavity is communicated with the other end of the second air passage in a first switching state structure; the fourth air passage is communicated with the other end of the third air passage in a second switching state structure; the plurality of fifth air passages comprise one ends communicated with the annular cavity and the other ends communicated with the outside;

the flow guide part is connected with the second flow dividing part and comprises a free end and a connecting end connected with the second flow dividing part; each fifth air passage in the plurality of fifth air passages is arranged around the connecting end; a flow guide surface for guiding the air flow output from the fifth air passages to a preset direction is arranged between the free end and the connecting end;

and a sixth air passage is also arranged in the flow guide part and communicated with the fourth air passage, and the axis of the air passage of the sixth air passage is intersected with the preset direction.

Preferably, the air passage switching portion is provided at a position between the connecting portion and the first flow dividing portion;

the second base body is rotatably arranged between the first base body and the third base body, and when the second base body rotates to a first preset angle, the air channel switching part is in a first switching state structure; when the second base body rotates to a second preset angle, the air channel switching part is in a second switching state structure;

the first switching air passages are obliquely arranged in the second base body, and the axis intersection points of the air passages of the first switching air passages are positioned in the first air passages when the air passage switching part is in a first switching state structure;

the second switching air passage is positioned among the plurality of first switching air passages, and the air passage switching part is in a first switching state structure, and the air passage axis of the second switching air passage is intersected with the air passage axis of the first air passage.

Preferably, in the first switching state structure, the air passage switching unit has an air passage axis of the second switching air passage perpendicularly intersecting with an air passage axis of the first air passage.

Preferably, the plurality of first switching air passages comprise two first switching air passages, and the two first switching air passages are respectively arranged at two sides of the second switching air passage and are in an axisymmetric structure relative to the second switching air passage.

Preferably, a rod handle is further arranged on the air passage switching part, and the rod handle is fixedly connected with the second base body; the lever handle is also provided with a shifting sheet.

Preferably, the flow guide part comprises a circular truncated cone base body, the circular truncated cone section of the circular truncated cone base body is located on one side far away from the annular cavity, and the circular truncated cone side face of the circular truncated cone base body is the flow guide face.

Preferably, the connecting portion, the first flow dividing portion, the second flow dividing portion, and the flow guide portion are integrally formed.

Preferably, a hexagonal nut is further sleeved on the first base body, and the hexagonal nut is sleeved on one side of the first base body close to the annular cavity.

Preferably, the plurality of second air passages are obliquely arranged on the third base body, and each air passage of the plurality of second air passages is in one-to-one butt joint communication with each air passage of the plurality of first switching air passages in the first switching state structure by the air passage switching part.

Preferably, the air passage switching portion is provided at a position between the connecting portion and the first flow dividing portion;

the second base body is inserted between the first base body and the third base body, and when the second base body is inserted to a first preset distance, the air channel switching part is in a first switching state structure; when the second base body is inserted to a second preset distance, the air passage switching part is in a second switching state structure;

the plurality of first switching air passages are positioned on one side of the second switching air passage.

Preferably, the air passage switching part is further provided with a push plate, and the push plate is fixedly connected with the second base body.

Preferably, the fourth base body comprises a sleeve body, a supporting part connected with the third base body, and a shaft body connected with the supporting part, the shaft body is located in the sleeve body, and the outer wall of the shaft body and the inner wall of the sleeve body form the annular cavity;

the fourth air passage is arranged in the shaft body.

Preferably, the shaft body is located in the middle of the fourth base body, and the air passage axis of the fourth air passage coincides with the air passage axis of the first air passage.

Preferably, in the longitudinal section structure of the inner wall of the sleeve body, a first bevel edge and a second bevel edge which are inclined towards the direction of the outer wall of the sleeve body are arranged on the inner wall of the sleeve body, the first bevel edge and the second bevel edge are intersected in the direction from the inner wall of the sleeve body to the outer wall of the sleeve body, and the second bevel edge is positioned at one side close to the flow guide part;

the plurality of fifth air passages are formed in the second oblique edge, and hole shafts of the plurality of fifth air passages are parallel to the axis of the air passage of the first air passage.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

the energy-saving silencing air nozzle capable of switching the air passage can realize the switching of the energy-saving silencing air nozzle capable of switching the air passage to the sprayed air flow by utilizing the arranged air passage switching part and the corresponding air passage structure: the air flow can be blown to the preset direction along the flow guide surface and can also be blown to the pointed direction directly through the sixth air passage, so that the energy-saving silencing air nozzle with the switchable air passages can be used for adaptively drying various medical appliance structures, application scenes are enriched, and the drying efficiency is improved.

Meanwhile, the air flow flowing out is guided by the flow guide part, so that the spraying direction of the air flow is controlled. In addition, through the arrangement of the plurality of second air passages, the annular cavity and the plurality of fifth air passages, the air flow is uniformly distributed, and the overall noise of the air nozzle is favorably reduced. In addition, the airflow output from each fifth air passage after being uniformly distributed is tightly adhered to the flow guide surface to be blown out, and a negative pressure effect is generated at the periphery of the air nozzle, so that the air blown out from the free end of the flow guide part of the air nozzle is 25-30 times of the original air, a uniform 360-degree conical airflow ring is formed, the using amount of compressed air can be effectively saved, the jet efficiency of the airflow is improved, and energy conservation is realized.

In addition, when the air passage switching part is in the first switching state structure, the output air flow can cling to the flow guide surface to flow quickly, and the ambient air is driven to enter, so that the air flow is improved, the purposes of saving compressed air and drying articles such as medical appliances can be achieved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an energy-saving silencing air nozzle with a switchable air passage according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an energy-saving silencing air nozzle with a switchable air passage according to another embodiment of the present invention, wherein the air passage switching portion is in a first switching state structure;

fig. 3 is a schematic structural diagram of an energy-saving silencing air nozzle with a switchable air passage according to another embodiment of the present invention, wherein the air passage switching portion is in a second switching state;

FIG. 4 is a schematic structural view of a second flow-splitting part and a flow-guiding part according to the present invention;

fig. 5 is a schematic perspective view of an energy-saving silencing air nozzle with switchable air passages according to another embodiment of the present invention;

fig. 6 is a schematic top view of an energy-saving silencing air nozzle with switchable air passages according to another embodiment of the present invention;

fig. 7 is a schematic bottom view of an energy-saving silencing tuyere with switchable air passages provided in the present invention according to another embodiment;

fig. 8 is a schematic perspective view of another embodiment of the air duct switching portion in the energy-saving silencing air nozzle with switchable air duct according to the present invention;

fig. 9 is a schematic cross-sectional structure diagram of another specific implementation structure of the air duct switching portion in the energy-saving silencing air nozzle with the switchable air duct provided by the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The energy-saving silencing air nozzle with the switchable air passage is mainly applied to the drying process of medical appliances, but the energy-saving silencing air nozzle with the switchable air passage is not limited to be applied to other practical scenes.

Referring to fig. 1, a schematic structural principle of an energy-saving silencing tuyere with a switchable air passage provided by the present invention in an embodiment is shown. The energy-saving silencing air nozzle 1 with the switchable air passage comprises a connecting part 11, an air passage switching part 12, a first flow dividing part 13, a second flow dividing part 14 and a flow guiding part 15, wherein the connecting part 11 is used for being connected with external gas transmission equipment; the air passage switching part 12 is used for switching different state structures of the air flow output from the connecting part 11 to realize the output of different air passages; the first flow dividing section 13 is configured to divide the airflow output from the airway switching section 12; the second flow dividing section 14 is configured to divide the flow of air output from the first flow dividing section 13.

It will be appreciated that the external gas delivery device is a device that provides a gas flow output, such as a compressed air system or the like.

As shown in fig. 1, in the energy-saving silencing tuyere 1 with switchable air passage:

the connecting portion 11 includes a first base 111 and a first air channel 112 opened in the first base 111, and the first air channel 112 includes an air inlet port and an air outlet port.

The air channel switching unit 12 includes a second base 121, and a plurality of first switching air channels 122 and second switching air channels 123 opened on the second base 121, and the air channel switching unit 12 includes at least two state structures: a first switching state structure in which one end of the first switching air passage 122 is communicated with the first air passage 112 and the second switching air passage 123 is blocked from the first air passage 112; in the second switching state structure, one end of the second switching air passage 123 is communicated with the first air passage 112, and the first switching air passage 122 is blocked from the first air passage 112.

The first flow dividing portion 13 includes a third base 131, and a plurality of second air passages 132 and third air passages 133 opened on the third base 131, the plurality of first switching air passages 122 are used for correspondingly guiding the air flow output from the air outlet port to the plurality of second air passages 132 in the first switching state, and the second switching air passages 123 are used for correspondingly guiding the air flow output from the air outlet port to the third air passages 133 in the second switching state structure.

The second flow dividing portion 14 includes a fourth base 141, and an annular cavity 142, a fourth air passage 143, and a plurality of fifth air passages 144 that are opened in the fourth base 141, where the annular cavity 142 is communicated with the other end of the second air passage 132 in the first switching state structure. The fourth air passage 143 communicates with the other end of the third air passage 133 in the second switching state configuration. The plurality of fifth air passages 144 include one end communicating with the annular chamber 142, and the other end for communicating with the outside.

The flow guiding portion 15 includes a free end 151 and a connection end 152 connected to the second flow dividing portion 14, each of the fifth air passages 144 is disposed around the connection end 152, a flow guiding surface 153 for guiding the air passage output from the fifth air passages 144 to a preset direction is disposed between the free end 151 and the connection end 152, a sixth air passage 154 is further disposed in the flow guiding portion 15, the sixth air passage 154 is communicated with the fourth air passage 143, and an air passage axis of the sixth air passage 154 intersects with the preset direction. Here, the preset direction is a direction determined by the air flow being ejected along the structure of the flow guide surface.

It can be understood that the air passage axis of the sixth air passage 154 intersects with the preset direction, that is, the flow trajectory of the air flow output from the sixth air passage 154 may intersect with the flow trajectory of the air flow acted by the flow guiding surface 153, that is, during the application process, the direction in which the air flow output from the fifth air passages 144 in the first switching state structure is blown by the flow guiding surface 153 is identical or substantially identical to the direction in which the air flow output from the sixth air passage 154 in the second switching state structure is blown, so that the user does not need to additionally adjust the posture of the silencing nozzle before and after the air passage switching operation, and the use is convenient.

It can be understood that the action range of the airflow acted by the flow guide surface 153 is larger than that of the airflow directly output from the sixth air duct 154, and therefore, the airflow acted by the flow guide surface 153 can be applied to drying medical instruments with relatively large surface areas and simple structures, and the airflow directly output from the sixth air duct 154 can be applied to drying lumen medical instruments with complex structures, such as many dead angles.

In this embodiment, when the energy-saving silencing air nozzle 1 with switchable air passages operates, air flow enters the first air passage 112 from the air inlet port, and circulates through the first air passage 112.

In the first switching state configuration of the air passage switching unit 12, the air flow output from the first air passage 112 enters the first switching air passage 122 and circulates through the first switching air passage 122. Thereafter, the airflow output from the first switching duct 122 enters the second duct 132, and the airflow entering the second duct 132 is output to the annular cavity 142 under the action of the inner wall of the duct. The air flow in the annular cavity 142 is output through the plurality of fifth air passages 144, and the output air flow can flow in a preset direction under the action of the flow guide surface 153.

When the air passage switching unit 12 is in the second switching state configuration, the air flow output from the first air passage 112 enters the second switching air passage 123 and flows through the second switching air passage 123. Then, the airflow output by the second switching air passage 123 enters the third air passage 133, and the airflow entering the third air passage 133 is output to the fourth air passage 143 under the action of the inner wall of the air passage. The gas flow in the fourth gas passage 143 finally flows out via the sixth gas passage 154.

The energy-saving silencing air nozzle capable of switching the air passage can realize the switching of the energy-saving silencing air nozzle capable of switching the air passage to the sprayed air flow by utilizing the arranged air passage switching part and the corresponding air passage structure: the air flow can be blown to the preset direction along the flow guide surface and can also be blown to the pointed direction directly through the sixth air passage, so that the energy-saving silencing air nozzle with the switchable air passages can be used for adaptively drying various medical appliance structures, application scenes are enriched, and the drying efficiency is improved.

Meanwhile, the air flow flowing out is guided by the flow guide part, so that the spraying direction of the air flow is controlled. In addition, through the arrangement of the plurality of second air passages, the annular cavity and the plurality of fifth air passages, the air flow is uniformly distributed, and the overall noise of the air nozzle is favorably reduced. In addition, the airflow output from each fifth air passage after being uniformly distributed is tightly adhered to the flow guide surface to be blown out, and a negative pressure effect is generated at the periphery of the air nozzle, so that the air blown out from the free end of the flow guide part of the air nozzle is 25-30 times of the original air, a uniform 360-degree conical airflow ring is formed, the using amount of compressed air can be effectively saved, the jet efficiency of the airflow is improved, and energy conservation is realized.

In addition, when the air passage switching part is in the first switching state structure, the output air flow can cling to the flow guide surface to flow quickly, and the ambient air is driven to enter, so that the air flow is improved, the purposes of saving compressed air and drying articles such as medical appliances can be achieved.

Referring to fig. 2, a schematic structural diagram of an energy-saving silencing air nozzle with a switchable air passage according to another embodiment of the present invention is shown, wherein the air passage switching portion is in a first switching state structure. In the present embodiment, the energy saving noise reducing nozzle 2 capable of switching air passages includes a connection portion 21, an air passage switching portion 22, a first flow dividing portion 23, a second flow dividing portion 24, and a flow guiding portion 25, the air passage switching portion 22 is disposed at a position between the connection portion 21 and the first flow dividing portion 23, and the second base 221 of the air passage switching portion 22 is rotatably disposed between the first base 211 and the third base 231. When the second base 221 rotates to a first preset angle, the air channel switching part 22 is in a first switching state structure; when the second base 221 rotates to a second preset angle, the air channel switching portion 22 is in a second switching state structure.

It is understood that the first predetermined angle and the second predetermined angle can be determined according to the opening angles of the first switching air passage 222 and the second switching air passage 223 in the second base 221, in a preferred embodiment, the opening direction of the first switching air passage 222 in the second base 221 is perpendicular to the opening direction of the second switching air passage 223 in the second base 221, and the first switching air passage 222 and the second switching air passage 223 do not coincide with each other, so that when the air passage switching portion 22 is switched from the first switching state structure to the second switching state structure, the rotation angle of the second base 221 can be 90 degrees or 270 degrees. Further, a rotation limiting member may be further disposed on the second base 221 for convenience of use, so that the rotation limiting member can be rotated by only 90 degrees when switching between the first switching state structure and the second switching state structure.

Here, the plurality of first switching air channels 222 are obliquely arranged in the second base 221, and in the first switching state structure of the air channel switching unit 22, the intersection point of the axis of each air channel of the plurality of first switching air channels 222 is located in the first air channel 212, and the air flow output from the first air channel 212 can be divided into a plurality of air flows through the plurality of first switching air channels 222 and flows through the first switching air channels 222.

The second switching duct 223 is located between the plurality of first switching ducts 222, in this embodiment, the duct switching portion 22 includes two first switching ducts 222, and one second switching duct 223 is located between the two first switching ducts 222 and specifically located at a middle position therebetween. In the first switching state structure of the air passage switching part 22, the air passage axis of the second switching air passage 223 intersects with the air passage axis of the first air passage 212, so that the second switching air passage 223 is staggered with the first air passage 212 in the first switching state structure, so that the second switching air passage 233 forms a barrier with the first air passage 212. Further, in the air passage switching portion 22 in the first switching state, the air passage axis of the second switching air passage 223 is perpendicular to the air passage axis of the first air passage 212.

In the present embodiment, the two first connecting air passages 222 are respectively disposed on two sides of the second connecting air passage 223, and are axially symmetric with respect to the second connecting air passage 223.

It should be understood that the air passage structure of the present invention is default to a relatively regular cylindrical air passage structure, and the corresponding descriptions such as the axis are also based on the regular structure, so it should be noted that the above description is not used to limit the air passage structure of the present invention.

In this embodiment, when the energy-saving silencing air nozzle 2 with switchable air passages operates, the air flow enters the first air passage 212 from the air inlet port and circulates through the first air passage 212.

The air passage switching portion 22 is in the first switching state structure, so that the air flow output from the first air passage 212 enters the first switching air passage 222 and circulates through the first switching air passage 222. Then, the airflow enters the second air passage 232 through the first adapter air passage 222, and the airflow entering the second air passage 232 is output to the annular cavity 242 under the action of the inner wall of the air passage. The airflow in the annular cavity 242 is output through the fifth air ducts 244, and the output airflow can flow in a predetermined direction under the action of the flow guide surface 253.

It can be understood that through the arrangement of the plurality of second air ducts 232, the annular cavity 242 and the plurality of fifth air ducts 244, uniform distribution of air flow can be achieved, which is beneficial to reducing noise of the whole air nozzle during operation.

In addition, after being uniformly distributed, the air flow output from each fifth air passage is tightly adhered to the flow guide surface to be blown out, and a negative pressure effect is generated at the periphery of the air nozzle, so that the air blown out from the free end of the flow guide part of the energy-saving silencing air nozzle with switchable air passages is 25-30 times of the original air flow, an even 360-degree conical air flow ring is formed, and the using amount of compressed air is effectively saved. Meanwhile, the jet efficiency of the air flow is improved, and energy conservation is realized.

It can be understood that when the user uses the air-drying device, the free end 251 of the air guide part 25 is directed to the corresponding device, and the air flow flows from the side of the connecting end 252 to the side of the free end 251, so that the function of drying the device by utilizing the guiding function of the air guide surface 253 to form the correspondingly directed air flow can be realized.

In this embodiment, the plurality of second air passages 232 are obliquely formed on the third base 231 corresponding to the obliquely formed first switching air passages, and each of the plurality of second air passages 232 and each of the plurality of first switching air passages 222 are in one-to-one butt communication with each other in the first switching state configuration of the air passage switching unit 22.

The size of the second air passage 232 may be the same as the size of the first switching air passage 222, and when the air passage switching unit 22 is in the first switching state configuration, the axis of the second air passage 232 coincides with the extension line of the axis of the first switching air passage 222.

Referring to fig. 3, it is a structural schematic diagram of an energy-saving silencing air nozzle with switchable air duct according to another embodiment of the present invention, and the air duct switching part is in a second switching state structure.

This embodiment may be based on the embodiment shown in fig. 4: when the energy-saving silencing air nozzle 2 with the switchable air passage runs, air flow enters the first air passage 212 from the air inlet port and circulates through the first air passage 212.

The air passage switching unit 22 is in the second switching state structure, so that the air flow output from the first air passage 212 enters the second switching air passage 223 and circulates through the second switching air passage 223. Thereafter, the air flow enters the third air passage 233 through the second switching air passage 223. The airflow is output to the fourth air passage 243 through the third air passage 233, then output to the sixth air passage 254 through the fourth air passage 243, and then output to the outside through the sixth air passage 254.

It can be understood that when the user uses the air guide 25, the free end is directed to the corresponding appliance, and the air flow flows from the side of the connecting end 252 to the side of the free end 251, so that the function of drying the appliance by utilizing the air flow output by the sixth air passage 254 and forming the corresponding direction can be realized.

Fig. 4 is a schematic structural view of the second flow-dividing portion and the flow-guiding portion in the present invention. The fourth base 241 includes a sleeve 245, a supporting portion 246 connected to the third base 231, and a shaft 247 connected to the supporting portion 246, the shaft 247 is located in the sleeve 245, the outer wall of the shaft 247 and the inner wall of the sleeve 245 form the annular cavity 242, and the fourth air channel 243 is located in the shaft 245.

In the figure, the shaft body 247 is specifically located in the middle of the fourth base, and the air duct axis of the fourth air duct 243 may coincide with the air duct axis of the first air duct.

In the longitudinal section structure of the inner wall of the sleeve body, a first bevel 2451 and a second bevel 2452 which are inclined towards the direction of the outer wall of the sleeve body 245 are arranged on the inner wall of the sleeve body, the first bevel 2451 and the second bevel 2452 are intersected in the direction of the inner wall of the sleeve body towards the outer wall of the sleeve body, and the second bevel 2452 is positioned at one side close to the flow guide part;

the fifth air ducts 244 are opened on the second inclined edge 2452, and the hole axes of the fifth air ducts 244 are all parallel to the air duct axis of the first air duct.

Referring to fig. 5 to 7, fig. 5 is a schematic perspective view of an energy-saving silencing air nozzle with switchable air passages according to another embodiment of the present invention; fig. 6 is a schematic top view of an energy-saving silencing air nozzle with switchable air passages according to another embodiment of the present invention; fig. 7 is a schematic bottom view of an energy-saving silencing tuyere with a switchable air passage according to another embodiment of the present invention.

In the energy-saving silencing air nozzle 2 with switchable air passages, air flow output by external air transmission equipment enters from the connecting part 21, then passes through the air passage switching part 22, the first flow dividing part (not shown in the figure) and the second flow dividing part 24, and is output by the flow guiding part 25. When the air passage switching part 22 is in the first switching state structure, the air flow flows out along the flow guide surface 253 of the flow guide part 25; in the second switching state structure of the air passage switching portion 22, the air flow flows out from the sixth air passage of the flow guide portion 25.

Here, the airway switching unit 22 further includes a lever 224 for rotating the second base, and the lever 224 is fixedly connected to the second base. Further, in order to control the rotation angle of the second base body, two rotation protrusions 225 are further disposed on the handle 224, a rotation limiting member 226 is further disposed on the rotation path between the two rotation protrusions 225, and an included angle formed by an extension line of the protrusion direction of the two rotation protrusions 225 to the rotation axis of the second base body is the rotation angle of the second base body.

In this embodiment, the shank 224 is fixedly connected to the second base bolt. In addition, a pull tab 227 is provided at the free end of the handle 224 to facilitate the operation of switching the airway by the user.

The flow guide part 25 comprises a circular truncated cone base body, the circular truncated cone section of the circular truncated cone base body is located on one side far away from the annular cavity, namely the circular truncated cone section is located on one side where the free end 251 is located, and the flow guide surface 253 is arranged on the circular truncated cone side surface of the circular truncated cone base body. Therefore, the taper of the circular truncated cone base body can be designed to set the corresponding flow guide surface, and the preset direction is controlled.

The air flow output from the fifth air passages 244 can flow to one side of the circular truncated cone section along the flow guide surface 253 under the guide effect of the flow guide surface 253, so as to spray air flow to the medical apparatus and other objects pointed by the circular truncated cone section, thereby increasing the air circulation speed near the medical apparatus and other objects and increasing the evaporation speed of moisture. After the airflow output by the fifth air passages 244 is guided by the guide part 25, the airflow can be relatively and intensively sprayed towards the direction of the section of the circular truncated cone, the spraying range can be determined by the size of the section of the circular truncated cone, the airflow can cling to the guide surface to quickly flow, and the airflow drives ambient air to enter, so that the airflow is improved, the purposes of saving compressed air and drying articles such as medical instruments can be achieved.

Referring to fig. 8 and 9, fig. 8 is a schematic perspective view of another embodiment of the air duct switching portion in the energy-saving silencing air nozzle with switchable air duct according to the present invention; fig. 9 is a schematic cross-sectional structure diagram of another specific implementation structure of the air duct switching portion in the energy-saving silencing air nozzle with the switchable air duct provided by the invention. The air passage switching portion 32 is provided at a position between the connecting portion and the first flow dividing portion. The second substrate 321 is used for being inserted between the first substrate and the third substrate, and in contrast to the above manner of performing air channel switching by rotation, in the present embodiment: when the second base 321 is inserted to a first preset distance, the air channel switching part is in a first switching state structure; when the second base 321 is inserted to a second preset distance, the air channel switching part is in a second switching state structure.

Here, the plurality of first switching air passages 322 on the second base 321 are disposed at one side of the second switching air passage 323, and switching of the air passages can be achieved by pushing and pulling the second base 321.

Further, a push plate 324 is further disposed on the second substrate 321, and the push plate 324 is fixedly connected to the second substrate 321.

When the user uses the device, the state of the air passage switching part can be switched by pushing and pulling the push plate 324, and the device has a simple structure.

In the present invention, the connecting portion, the first flow dividing portion, the second flow dividing portion, and the flow guiding portion may be integrally formed, and the air passage switching portion may be a separate component from the air passage switching portion.

Furthermore, a hexagonal nut can be sleeved on the first base body, and the hexagonal nut is sleeved on one side of the first base body close to the annular cavity. Through the hexagon nut who sets up, can do benefit to installer and install the energy-conserving amortization tuyere of changeable air flue on external gas transmission equipment.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.