Steam type sprayer and medicine feeding structure thereof

Abstract

The utility model discloses a steam type sprayer and a medicine feeding structure thereof, and belongs to the field of sprayers. The pesticide feeding structure of the steam sprayer comprises a steam spraying pipe, one end of the steam spraying pipe is an outflow end, the other end of the steam spraying pipe is an inflow end, the inflow end is communicated with a pesticide storage box through a pesticide pipe, and a conveying cavity is formed in the pipe wall of the steam spraying pipe; the conveying cavity is provided with a mist inlet and a mist outlet; the mist inlet is located in the outer side wall of the steam spraying pipe and communicated with the auxiliary pipe, and at least part of the auxiliary pipe is spiral. The mist outlet is located in the inner side wall of the steam spraying pipe and communicated with an inner cavity of the steam spraying pipe. The side, close to the mist outlet, of the conveying cavity shrinks towards the outflow end, so that the mist outlet jets towards the outflow end, and the inflow end sucks the dry powder medicament from the medicament storage box. The steam spraying pipe generates large suction force at the flow inlet end, so that the dry powder pesticide is sucked in, the pesticide and the auxiliary agent mist are jointly sprayed out after being converged in the steam spraying pipe, and a user can effectively and evenly spray the dry powder pesticide to an operation object in a large range through the steam type sprayer.

Description

Technical Field

[0001] The utility model relates to the technical field of sprayers, and more specifically to a steam sprayer and a medicine delivery structure thereof. Background Art

[0002] A sprayer refers to agricultural and forestry plant protection machinery and equipment, which is widely used in pest control, disinfection or fertilization. The steam sprayer separates the agent and the auxiliary agent and heats the auxiliary agent separately, and then mixes the agent at room temperature with the auxiliary agent heated at high temperature and sprays it to ensure the medicinal properties of the agent. It has the advantages of small size and light weight.

[0003] For example, Chinese patent document (CN 219125197 U) provides a steam sprayer, including a burner shell, an end shell, an air supply mechanism and a medicine box, an inner coil is provided in the burner shell, the end shell is provided at one end of the burner shell, a burner and an end cover are provided at both ends of the end shell, and a fireproof chamber is formed in the end shell in the area between the burner and the end cover; the air supply mechanism is used to supply air into the fireproof chamber; an exhaust pipe structure is provided on the burner shell, and the exhaust pipe structure is made of metal; the outlets of the medicine box and the inner coil are connected to the nozzle.

[0004] However, the device can only be used for liquid medicines, not dry powder medicines, so it is difficult to meet the different operation requirements of users. At the same time, the powder spraying device on the market has low powder spraying efficiency and the amount of powder sprayed is seriously uneven, which greatly affects the operation effect.

[0005] For the above problems, the related technologies do not provide effective solutions. Utility Model Content

[0006] In order to solve the problems that may exist in the related art, some embodiments of the present application provide a drug delivery structure of a steam sprayer, including a steam nozzle, an auxiliary agent tube and a drug tube; one end of the steam nozzle is an outlet end, and the other end is an inlet end; the inlet end is connected to a drug storage box through a drug tube, and the drug storage box is used to store dry powder drugs; a conveying cavity is formed in the tube wall of the steam nozzle, and the conveying cavity is used to convey steam-like auxiliary agents; the conveying cavity has a mist inlet and a mist outlet; the mist inlet is located on the outer wall of the steam nozzle and is communicated with the auxiliary agent tube, and the auxiliary agent tube is at least partially spiral; the mist outlet is located on the inner wall of the steam nozzle and is communicated with the inner cavity of the steam nozzle; wherein the conveying cavity is contracted toward the outlet end on one side close to the mist outlet, so that the mist outlet sprays toward the outlet end, and the inlet end inhales the dry powder drugs from the drug storage box.

[0007] Furthermore, the delivery cavity at least partially circumferentially surrounds the inner wall of the steam nozzle, and the mist outlet circumferentially penetrates the inner wall of the steam nozzle.

[0008] Furthermore, the delivery cavity at least partially circumferentially surrounds the inner wall of the steam nozzle, and the mist outlet is hole-shaped; the inner wall of the steam nozzle is provided with a plurality of the mist outlets, which can eject synchronously.

[0009] Furthermore, the mist outlet is elliptical, and the major axis direction of the mist outlet extends along the jet direction of the steam nozzle, and a plurality of the mist outlets are evenly arranged along the circumference of the steam nozzle.

[0010] Furthermore, the inner wall portion of the steam nozzle is contracted to form a pressurizing section, and two ends of the steam nozzle are located at two ends of the pressurizing section.

[0011] Furthermore, the delivery cavity surrounds the pressurizing section and is adapted to the shape of the pressurizing section.

[0012] Furthermore, at least a part of the inner wall of the steam nozzle is streamlined; or, the inner wall of the steam nozzle between the mist outlet and the flow outlet is streamlined and gradually opens outwards.

[0013] Furthermore, the medicine pipe is detachably connected to the steam spray pipe.

[0014] Furthermore, the distance from the mist outlet to the outflow end is smaller than the distance from the mist outlet to the inflow end.

[0015] Furthermore, the steam spray pipe is divided into a front pipe and a rear pipe with opposite end faces, and the space between the front pipe and the rear pipe forms at least a part of the conveying cavity.

[0016] Furthermore, part of the rear tube extends into the front tube, and the radial gap between the rear tube and the front tube gradually decreases, and the gap constitutes a part of the delivery cavity.

[0017] Furthermore, the steam spray pipe also includes a connecting piece, which is synchronously connected to the outer wall of the front pipe and the outer wall of the rear pipe. The connecting piece is formed with a mounting hole, and the mounting hole is connected to the auxiliary agent tube so that the auxiliary agent cavity is communicated with the auxiliary agent tube.

[0018] Furthermore, the connecting piece is a cylindrical structure, the interior of the cylindrical structure is through-connected and sleeved to the front tube and the rear tube;

[0019] The connecting piece is movably connected to the front tube and / or the rear tube, and is used to change the relative distance between the front tube and the rear tube, thereby adjusting the size of the mist outlet.

[0020] Furthermore, the steam spray pipe is divided into an outer pipe and an inner pipe, the outer pipe is sleeved to the inner pipe, and the conveying cavity is formed between the inner wall of the outer pipe and the outer wall of the inner pipe; the outer pipe and the inner pipe are detachably connected.

[0021] Furthermore, the inner tube is longer than the outer tube, and both ends of the inner tube protrude from the outer tube in the axial direction;

[0022] A flange having a diameter greater than that of the outer tube is formed at one end of the inner tube, and the flange abuts against an end surface of the outer tube;

[0023] The other end of the inner tube is formed with an external thread, a nut is sleeved on the external thread, and the nut abuts against the other end surface of the outer tube through a gasket;

[0024] Furthermore, an inner thread is formed at one end of the inner tube away from the flange for threaded connection with the medicine tube.

[0025] To achieve the above-mentioned purpose, some embodiments of the present application also provide a steam sprayer, including: a burner shell, a burner, and a medicine delivery structure of any one of the above-mentioned steam sprayers; a burner is installed at one end of the burner shell, and is used to provide a heat source to the burner shell; a partial auxiliary agent tube is arranged in the burner shell, so that the auxiliary agent is heated and heated by the heat source.

[0026] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0027] Since the mist outlet in the steam nozzle ejects high-temperature and high-pressure auxiliary agent mist toward the outlet end of the steam nozzle, negative pressure is formed inside the steam nozzle, and the steam nozzle generates a large suction force at the inlet end, thereby sucking in dry powder medicine, and the medicine and the auxiliary agent mist merge in the steam nozzle and are ejected together from the outlet end. The present application makes full use of the high pressure and high diffusion force characteristics of the steam-like auxiliary agent, so that the dry powder medicine can be effectively, evenly and widely sprayed onto the work object through the steam-like auxiliary agent, and is particularly suitable for solid powder medicines that are insoluble in water, such as sulfur powder, to meet the different work needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0029] Figure 1 This is a schematic diagram of a medicine delivery structure of a steam-type sprayer according to an embodiment of the present application;

[0030] Figure 2A schematic diagram of a cross-sectional structure of a steam nozzle according to an embodiment of the present application;

[0031] Figure 3 A schematic diagram of a steam nozzle structure according to an embodiment of the present application;

[0032] Figure 4 A schematic diagram of a cross-sectional structure of a steam nozzle according to an embodiment of the present application;

[0033] Figure 5 A schematic diagram of a cross-sectional structure of a steam nozzle according to an embodiment of the present application;

[0034] Figure 6 A schematic diagram of a cross-sectional structure of a steam nozzle according to an embodiment of the present application;

[0035] Figure 7 is a schematic cross-sectional structural diagram of an inner tube of a steam nozzle according to an embodiment of the present application;

[0036] Description of labels:

[0037] 100, steam nozzle; 100a, outer side wall; 100b, inner side wall;

[0038] 110, conveying cavity; 111, mist inlet; 112, mist outlet;

[0039] 120, outflow end;

[0040] 130, inlet end;

[0041] 140a, front pipe; 141a, rear pipe; 142a, connecting piece;

[0042] 140b, outer tube; 141b, inner tube; 142b, flange;

[0043] 150, pressurization section;

[0044] 200, pharmaceutical tube;

[0045] 300. Auxiliary agent tube. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0048] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. Moreover, in addition to being used to indicate orientation or positional relationships, some of the above terms may also be used to express other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0049] As an implementation mode 1 of this embodiment, Figure 1 As shown, a steam sprayer and a medicine delivery structure thereof are provided, wherein the medicine delivery structure of the steam sprayer comprises a steam nozzle 100, a medicine pipe 200 and an auxiliary agent pipe 300, which are used for the steam sprayer. Specifically, the steam sprayer also comprises a burner housing and a burner, wherein the burner is mounted at one end of the burner housing and is used to provide a heat source to the burner housing, wherein a part of the auxiliary agent pipe 300 is arranged in the burner housing, wherein the auxiliary agent pipe 300 is used to transport the auxiliary agent, wherein at least a part of the auxiliary agent pipe 300 is spiral-shaped to increase the residence time of the auxiliary agent in the burner housing, so that the auxiliary agent in the auxiliary agent pipe 300 is heated by the heat source and heated to become a high-temperature and high-pressure steam-like auxiliary agent, wherein the auxiliary agent pipe 300 is connected to the steam nozzle 100, and the steam-like auxiliary agent is sprayed out from the steam nozzle 100. Optionally, the auxiliary agent pipe can be divided into several sections.

[0050] Specifically, the steam spray pipe 100 is detachably connected to the auxiliary agent pipe 300, so that the user can clean, maintain or replace the auxiliary agent spray pipe.

[0051] One end of the steam nozzle is an outlet end 120, and the other end of the steam nozzle is an inlet end 130. The inlet end 130 is connected to a medicine storage box through a medicine pipe 200, and the medicine storage box is used to store dry powder medicine.

[0052] Reference Figure 2 , 3As shown in FIG. 4 , a conveying cavity 110 is formed in the tube wall of the steam nozzle 100. The conveying cavity 110 passes through the side wall of the steam nozzle 100 and is used to convey the steam-like auxiliary agent. The conveying cavity 110 has a mist inlet 111 and a mist outlet 112. The mist inlet 111 is located on the outer wall 100a of the steam nozzle 100. The mist inlet 111 communicates with the auxiliary agent pipe 300. The auxiliary agent mist enters the steam nozzle 100 from the mist inlet 111. The mist outlet 112 is located on the inner wall 100b of the steam nozzle 100. The mist outlet 112 communicates with the inner cavity of the steam nozzle 100. Specifically, the inner cavity of the auxiliary agent nozzle 100 is formed by the inner wall 100b of the auxiliary agent nozzle 100.

[0053] Among them, Figure 4 As shown, the side of the conveying cavity 110 close to the mist outlet 112 shrinks toward the outlet end 120, so that the mist outlet 112 sprays toward the outlet end, and the inlet end 130 sucks dry powder medicine from the medicine storage box. In this way, since the mist outlet 112 sprays high-temperature and high-pressure auxiliary agent mist toward the outlet end 120 in the steam nozzle 100, a negative pressure is formed inside the steam nozzle 100, and the inlet end 130 of the steam nozzle 100 generates a large suction force, thereby sucking in powder medicine, and the dry powder medicine and the auxiliary agent mist merge in the steam nozzle 100 and are ejected from the outlet end 120 together. This embodiment makes full use of the high pressure and high diffusion force of the steam auxiliary agent, so that the dry powder medicine can be effectively, evenly and widely sprayed to the working object through the steam auxiliary agent, and is particularly suitable for solid powder medicines that are insoluble in water, such as sulfur powder, to meet the different working needs of users.

[0054] It is worth noting that the "jet" in this embodiment refers to the fluid ejected from a pipe mouth, an orifice, or a slit.

[0055] Since the dry powder medicine needs to merge with the auxiliary agent inside the auxiliary agent nozzle 100, the solid particles of the medicine are easily attached to the inner wall of the auxiliary agent nozzle 100, causing the auxiliary agent nozzle 100 to be blocked. Therefore, preferably, the medicine tube 200 and the steam nozzle 100 are detachably connected, such as threaded connection, clamping or plugging, etc., to form a quick-release structure. When the user notices that the steam nozzle 100 is blocked, the connection between the medicine tube 200 and the steam nozzle 100 can be released, so that the user can quickly clean the inner wall of the steam nozzle 100.

[0056] Preferably, Figure 2 As shown, the distance from the mist outlet 112 to the inlet end 130 is smaller than the distance from the mist outlet 112 to the outlet end 120 , which extends the distance that the auxiliary agent mist flows in the pipeline, so that the auxiliary agent mist and the dry powdered agent are fully mixed in the auxiliary agent tube 300 and then sprayed out.

[0057] Optional, such as Figure 4As shown, the distance from the mist outlet 112 to the flow outlet 120 is smaller than the distance from the mist outlet 112 to the flow inlet 130 , so as to reduce the possibility of the auxiliary agent mist accumulating in the nozzle and causing backflow.

[0058] Optionally, the distance from the mist outlet 112 to the flow outlet 120 may also be equal to the distance from the mist outlet 112 to the flow inlet 130 .

[0059] As the second embodiment of this embodiment, based on the first embodiment, the medicine delivery structure of the steam sprayer is as follows:

[0060] As an alternative, Figure 4 As shown, the delivery cavity 110 at least partially circumferentially surrounds the inner wall 100b of the steam nozzle 100, and the mist outlet 112 is hole-shaped; the inner wall of the steam nozzle 100 is provided with a plurality of mist outlets 112, which can be ejected synchronously. Specifically, the mist outlet 112 is elliptical, and its long axis direction extends along the jet direction of the steam nozzle 100, and the plurality of mist outlets 112 are evenly arranged along the circumference of the steam nozzle 100.

[0061] As another alternative, Figure 5 As shown, the delivery cavity 110 at least partially circumferentially surrounds the inner wall of the steam nozzle 100, and the mist outlet 112 circumferentially penetrates the inner wall of the steam nozzle 100. The mist outlet 112 is specifically an annular slit, and the auxiliary agent mist is ejected from the annular slit, so that the auxiliary agent mist in the steam nozzle 100 is more uniform.

[0062] Other optional solutions of the mist outlet 112 are not described in detail in this embodiment.

[0063] Furthermore, the auxiliary agent cavity gradually shrinks toward the inner wall of the steam spray pipe 100 , so that the steam-like auxiliary agent is further pressurized before being sprayed out from the mist outlet 112 .

[0064] As the third embodiment of this embodiment, based on the first or second embodiment, the medicine delivery structure of the steam sprayer is as follows:

[0065] Among them, Figures 2 to 4 As shown, the inner wall 100b of the steam nozzle 100 is partially contracted to form a pressurizing section 150, and both ends of the steam nozzle 100 are located at both ends of the pressurizing section 150, so that when the fluid at the inlet end 130 passes through the pressurizing section 150, the pressure is further increased.

[0066] Further, such as Figure 4 As shown, the auxiliary agent chamber surrounds the pressurizing section 150 and is adapted to the shape of the pressurizing section 150 , that is, when the inner wall of the steam nozzle 100 contracts, the delivery chamber 110 further expands, so that the auxiliary agent is sprayed out after being fully pressurized in the auxiliary agent chamber, further increasing the spray force of the mist outlet 112 .

[0067] Specifically, if Figure 4 As shown, the inner wall 100b of the steam nozzle 100 is contracted at the side of the mist outlet 112 away from the flow outlet 120, and the contracted portion has a certain stopping effect on the auxiliary agent mist, thereby avoiding the auxiliary agent from flowing back as much as possible.

[0068] Further, such as Figure 4 As shown, the inner wall 100b of the steam nozzle 100 is at least partially streamlined to reduce the resistance of the fluid passing through. Figure 4 As shown, the inner wall of the steam nozzle 100 between the mist outlet 112 and the flow outlet 120 is streamlined and gradually opens outward in a cone shape. When the auxiliary agent mist is ejected from the mist outlet 112, it expands along the inner wall of the auxiliary agent nozzle 100, so that the radial spray width of the steam nozzle 100 is further increased.

[0069] Optionally, in order to facilitate processing, the inner side wall 100b of the steam nozzle 100 may also be in a stepped shape.

[0070] Optional, such as Figure 5 As shown, the inner cavity of the steam nozzle 100 may also be cylindrical.

[0071] As the fourth embodiment of this embodiment, based on the first, second or third embodiment, the medicine delivery structure of the steam sprayer is as follows:

[0072] Among them, Figure 5 As shown, the nozzle 100 is divided into a front tube 140a and a rear tube 141a with opposite end surfaces, and the space between the front tube 140a and the rear tube 141a forms at least a part of the delivery chamber 110. The end of the front tube 140a away from the rear tube 141a is the outflow end 120, and the end of the rear tube 141a away from 140a is the inflow end 130.

[0073] Specifically, part of the rear tube 141a extends into the front tube 140a, and the gap between the rear tube 141a and the front tube 140a gradually decreases, and the gap constitutes a part of the delivery cavity 110 to increase the space of the delivery cavity 110. More specifically, the front tube 140a and the rear tube 141a together form a mist inlet 111 and a mist outlet 112.

[0074] Further, such as Figure 5 As shown, the steam spray pipe 100 further includes a connector 142a, which is synchronously connected to the outer wall of the front pipe 140a and the outer wall of the rear pipe 141a. The connector 142a is formed with a mounting hole, which is connected to the auxiliary agent pipe 300 so that the auxiliary agent cavity is in communication with the auxiliary agent pipe 300.

[0075] Specifically, Figure 5As shown, the connecting member 142a is a cylindrical structure, which is internally connected and sleeved to the front tube 140a and the rear tube 141a. Specifically, the connecting member 142a is movably connected to the front tube 140a and / or the rear tube 141a, and is used to change the relative distance between the front tube 140a and the rear tube 141a, thereby adjusting the size of the mist outlet 112 to change the mist output amount of the auxiliary agent spray pipe 100. For example, the connecting member 142a is threadedly connected to the front tube 140a and the rear tube 141a, and when the user rotates the connecting member 142a, the front tube 140a and the rear tube 141a move closer to or farther away from each other.

[0076] Optionally, the connecting member 142a may be cylindrical, or may be other structures with edges on the axial surface, or may be provided with an anti-slip structure on its surface, so as to increase the friction with the user's hand and facilitate the user to manipulate the connecting member 142a.

[0077] As the fifth embodiment of this embodiment, based on the first, second or third embodiment, the medicine delivery structure of the steam sprayer is as follows:

[0078] Among them, Figure 6 As shown, the steam nozzle 100 is divided into an outer tube 140b and an inner tube 141b, the outer tube 140b is sleeved to the inner tube 141b, and a conveying cavity 110 is formed between the inner wall of the outer tube 140b and the outer wall of the inner tube 141b. The outer side wall 100a of the steam nozzle 100 is located on the outer tube 140b, the mist inlet 111 is formed by the outer tube 140b, the inner side wall 100b of the steam nozzle 100 is located on the inner tube 141b, and the mist outlet 112 is formed by the inner tube 141b.

[0079] Specifically, if Figure 6 As shown, the middle portion of the inner tube 141 b is recessed toward the inner cavity of the auxiliary agent nozzle, so that the inner tube 141 b forms a nearly funnel shape to increase the space of the delivery cavity 110 .

[0080] Specifically, the outer tube 140b and the inner tube 141b are detachably connected, such as by threaded connection, plug-in connection, snap-on connection, etc., so that the user can quickly separate the inner tube 141b and the outer tube 140b, making it convenient for the user to quickly clean, maintain or partially replace the steam nozzle 100.

[0081] Specifically, if Figure 6 , 7As shown, the length of the inner tube 141b is greater than that of the outer tube 140b, and both ends of the inner tube 141b protrude from the outer tube 140b in the axial direction. A flange 142b larger than the inner diameter of the outer tube 140b is formed at one end of the inner tube 141b, and the flange 142b abuts against the end face of the outer tube 140b, either directly or indirectly through a gasket. Further, an external thread is formed at the other end of the inner tube 141b, and a nut is sleeved on the external thread, and the nut abuts against the other end face of the outer tube 140b through a gasket. When the user needs to release the connection between the inner tube 141b and the outer tube 140b, the nut and the gasket can be removed, the flange 142b of the inner tube 141b can be held by hand, and the inner tube 141b can be pulled out from the outer tube 140b, so as to quickly realize the rapid disassembly of the inner tube 141b and the outer tube 140b.

[0082] More specifically, an inner thread is formed at one end of the inner tube 141 b away from the flange 142 b for threaded connection with the medicine tube 200 .

[0083] In this application, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0084] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A medicine delivery structure of a steam sprayer, characterized in that: It includes a steam spray pipe, an auxiliary agent pipe and a medicine pipe; one end of the steam spray pipe is an outflow end, and the other end is an inflow end; the inflow end is connected to a medicine storage box through the medicine pipe, and the medicine storage box is used to store dry powder medicine; A conveying cavity is formed in the wall of the steam nozzle, and the conveying cavity is used to convey the steam-like auxiliary agent; the conveying cavity has a mist inlet and a mist outlet; the mist inlet is located on the outer wall of the steam nozzle and communicates with the auxiliary agent pipe, and the auxiliary agent pipe is at least partially spiral; the mist outlet is located on the inner wall of the steam nozzle and communicates with the inner cavity of the steam nozzle; The side of the delivery cavity close to the mist outlet shrinks toward the outflow end, so that the mist outlet sprays toward the outflow end, and the inflow end inhales the dry powder medicine from the medicine storage box.

2. The medicine delivery structure of a steam sprayer according to claim 1, characterized in that: The delivery cavity at least partially circumferentially surrounds the inner side wall of the steam nozzle, and the mist outlet circumferentially penetrates the inner side wall of the steam nozzle.

3. The medicine delivery structure of a steam sprayer according to claim 1, characterized in that: The delivery cavity at least partially circumferentially surrounds the inner side wall of the steam spray pipe, and the mist outlet is in the shape of a hole; The inner side wall of the steam spray pipe is provided with a plurality of mist outlets, which can spray synchronously.

4. The medicine delivery structure of a steam sprayer according to claim 3, characterized in that: The mist outlet is elliptical, and the long axis direction of the mist outlet extends along the jet direction of the steam nozzle. A plurality of the mist outlets are evenly arranged along the circumference of the steam nozzle.

5. The medicine delivery structure of a steam sprayer according to claim 1, characterized in that: The inner wall portion of the steam spray pipe contracts to form a pressurizing section, and two ends of the steam spray pipe are located at two ends of the pressurizing section.

6. The medicine delivery structure of a steam sprayer according to claim 5, characterized in that: The delivery cavity surrounds the pressurizing section and is adapted to the shape of the pressurizing section.

7. The medicine delivery structure of a steam sprayer according to claim 1, characterized in that: The inner wall of the steam nozzle is at least partially streamlined; or, The inner side wall of the steam spray pipe between the mist outlet and the flow outlet is streamlined and gradually opens outwards.

8. The medicine delivery structure of a steam sprayer according to claim 1, characterized in that: The medicine pipe is detachably connected to the steam spray pipe.

9. The medicine delivery structure of a steam sprayer according to claim 1, characterized in that: The distance from the mist outlet to the outflow end is smaller than the distance from the mist outlet to the inflow end.

10. The medicine delivery structure of a steam sprayer according to claim 1, characterized in that: The steam spray pipe is divided into a front pipe and a rear pipe with opposite end faces, and the space between the front pipe and the rear pipe forms at least a part of the conveying cavity.

11. The medicine delivery structure of a steam sprayer according to claim 10, characterized in that: Part of the rear tube extends into the front tube, and a radial gap between the rear tube and the front tube gradually decreases, and the gap constitutes a part of the delivery cavity.

12. The medicine delivery structure of a steam sprayer according to claim 10 or 11, characterized in that: The steam spray pipe also includes a connecting piece, which is synchronously connected to the outer wall of the front pipe and the outer wall of the rear pipe. The connecting piece is formed with a mounting hole, and the mounting hole is connected to the auxiliary agent pipe so that the auxiliary agent cavity is communicated with the auxiliary agent pipe.

13. The medicine delivery structure of a steam sprayer according to claim 12, characterized in that: The connecting piece is a cylindrical structure, the interior of the cylindrical structure is through and sleeved to the front tube and the rear tube; The connecting piece is movably connected to the front tube and / or the rear tube, and is used to change the relative distance between the front tube and the rear tube, thereby adjusting the size of the mist outlet.

14. The medicine delivery structure of a steam sprayer according to claim 1, characterized in that: The steam spray pipe is divided into an outer pipe and an inner pipe, the outer pipe is sleeved to the inner pipe, and the conveying cavity is formed between the inner wall of the outer pipe and the outer wall of the inner pipe; The outer tube and the inner tube are detachably connected.

15. The medicine delivery structure of a steam sprayer according to claim 14, characterized in that: The inner tube is longer than the outer tube, and both ends of the inner tube protrude from the outer tube in the axial direction; A flange having a diameter greater than that of the outer tube is formed at one end of the inner tube, and the flange abuts against an end surface of the outer tube; The other end of the inner tube is formed with an external thread, a nut is sleeved on the external thread, and the nut abuts against the other end surface of the outer tube through a gasket.

16. The medicine delivery structure of a steam sprayer according to claim 15, characterized in that: An inner thread is formed at one end of the inner tube away from the flange for threaded connection with the medicine tube.

17. A steam sprayer, characterized in that: include: A burner housing, a burner and a medicine delivery structure of a steam sprayer according to any one of claims 1 to 16; The burner is installed at one end of the burner shell and is used to provide a heat source into the burner shell; a part of the auxiliary agent pipe is arranged in the burner shell so that the auxiliary agent is heated by the heat source to increase its temperature.

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