A fumigation apparatus

Abstract

The application relates to a fumigation instrument, which comprises an arm rod, a box body and a steam generating device in the box body, the arm rod comprises a treatment head and a plurality of hard conveying pipes, a rotary connecting piece is connected between adjacent conveying pipes, a conveying pipe at a starting position is communicated with the steam generating device through a pipeline, a conveying pipe at an end position is communicated with the treatment head, the treatment head is provided with a roller at the bottom of the box body, the steam generating device is matched with a pressure relief valve, and the box body is matched with an exhaust mechanism for exhausting the inner cavity of the box body. The application has the effects of reducing gas conveying obstacles of the fumigation instrument and improving the treatment effect and safety of the fumigation instrument.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of therapeutic equipment, in particular to a fumigation instrument. BACKGROUND

[0002] The fumigation instrument is also called traditional Chinese medicine fumigation instrument, and can make medicine penetrate into the affected part of a patient in a heated state and fully exert the medicinal effect.

[0003] The fumigation instrument generally comprises a steam generating device and a treatment head, the steam generating device generates steam containing traditional Chinese medicine components, the steam is transmitted to the treatment head through a hose, and then sprayed out through a hole of the treatment head to act on corresponding acupoints.

[0004] In view of the above related art, the inventor believes that the temperature of the steam will decrease to a certain extent during the process of being transported from the steam generating device to the treatment head, at this time, the saturated steam will be partially liquefied and adhered to the inner wall of the hose, and the hose will inevitably have a bent part during use, the liquefied water will flow back along the inner wall of the hose and accumulate at the bent position, thereby reducing the effective air passage diameter of this part, causing a great obstruction to the transportation of the steam, so that the fumigation effect of the fumigation instrument decreases obviously after being used for a period of time, and in this process, the steam is continuously generated, so that leakage, joint disengagement and other problems occur at the connected joints. SUMMARY

[0005] In order to reduce the influence of steam liquefaction on the fumigation instrument, the present application provides a fumigation instrument.

[0006] The fumigation instrument provided by the present application adopts the following technical scheme:

[0007] The fumigation instrument comprises an arm rod, a box body and a steam generating device located in the box body, the arm rod comprises a treatment head and a plurality of hard conveying pipes, a rotary connecting piece is connected between adjacent conveying pipes, a conveying pipe located at a starting position is in communication with the steam generating device through a pipeline, and a conveying pipe located at an end position is in communication with the treatment head, the treatment head and the bottom of the box body are provided with rollers, the steam generating device is matched with a pressure relief valve, and the box body is matched with an exhaust mechanism for exhausting the inner cavity of the box body.

[0008] By adopting the technical scheme, the hard conveying pipe is connected by the rotary connecting pieces to form joints, each joint can rotate in a certain direction, so that the spatial position of the treatment head can be adjusted, and the softness of each joint of the conveying pipe does not need to be considered. In this way, on the one hand, the conveying pipe can adopt a larger pipe diameter relative to the conventional hose, so that even if the inner wall of the conveying pipe is affected by the liquefied water, the influence on the steam conveying is small; on the other hand, the overall channel formed by the conveying pipe and the rotary joint is not prone to forming a low point due to creases, bending and the like, and the effective pipe diameter is not prone to being reduced, and the liquefied water can flow smoothly along the overall pipe to the appropriate liquid storage position in the steam generating device. The rollers can enable the steam generating device itself to have the ability of horizontal movement, and in cooperation with the multi-angle rotation of the conveying pipe, the hard pipe structure can have flexibility close to that of the hose; and if a certain position forms a low point during adjustment, or the treatment head is not opened, so that the internal pressure of the pipe rises to a certain value. At this time, the continuously increasing steam will overflow through the pressure relief valve and be discharged through the exhaust mechanism, so that the steam in the pipe always maintains a safe value, thereby reducing or avoiding leakage at each joint, thereby ensuring the normal operation of the fumigator, effectively reducing the adverse effects of steam liquefaction on the fumigator, and enabling the fumigator to always maintain good treatment effect.

[0009] Optionally, the side wall of the conveying pipe at the starting position is fixed with an input pipe, the input pipe is in communication with the conveying pipe and is fixed to the side wall of the box body, the conveying pipe is spaced apart from the side wall of the box body, and the lower end of the conveying pipe is detachably connected with a water storage bottle.

[0010] By adopting the technical scheme, the input pipe can separate the conveying pipe and the rotary connecting piece from the side wall of the box body, thereby reducing the interference of the side wall of the box body with the conveying pipe during swinging, and preventing the liquefied water in the conveying pipe from directly flowing back to the box body. The liquefied water in the conveying pipe will flow back to the water storage bottle for storage, and the water storage bottle is located below the connection port of the conveying pipe and the input pipe, and the steam conveying channel is located above the connection port. In this way, on the one hand, the influence of the liquefied water on the steam conveying is effectively reduced, and on the other hand, after the equipment is used, the water storage bottle can be detached and the water can be poured out. When the water storage bottle is removed, the water remaining in the inner wall of the conveying pipe can also be discharged through ventilation at the interface between the conveying pipe and the water storage bottle.

[0011] Optionally, the rotary connecting piece comprises a sleeve, a track sleeve and a sliding block, the sleeve is fixed to one of the conveying pipes and is sleeved with the other conveying pipe, the track sleeve is fixed to the sleeve and is provided with an annular slide on the inner wall, and the sliding block is fixed to the outer wall of the conveying pipe sleeved with the sleeve and is embedded in the annular slide and can slide along the annular slide.

[0012] By adopting the technical scheme, the sleeve and the conveying pipe are sleeved to make the two conveying pipes communicate and cover the gap at the end, and the slider and the annular sliding groove are connected to make the two conveying pipes rotate and prevent the two conveying pipes from separating along the axial direction.

[0013] Optionally, the track sleeve comprises at least two unit sleeves which are enclosed to form a ring, one of the unit sleeves is fixed with the sleeve, and the other unit sleeves are connected with the fixed unit sleeve through fasteners; some of the unit sleeves have annular sliding grooves, and some of the unit sleeves do not have annular sliding grooves or only have partial annular sliding grooves.

[0014] By adopting the technical scheme, the two conveying pipes can be sealed on the side and can rotate relative to each other.

[0015] Optionally, the steam generating device comprises a pot body and a pot cover, the pressure relief valve is installed on the pot cover, the box body is provided with a cavity for placing the steam generating device and an opening at the top, the top of the box body is provided with a protective cover which is reversibly connected with the box body, the pot body and the pot cover are provided with a locking structure for preventing the pot cover from being opened by steam, the gas outlet end of the exhaust mechanism is connected with the conveying pipe through a pipeline, and the side wall of the box body is provided with a plurality of through air holes.

[0016] By adopting the technical scheme, the protective cover plays a protective role to avoid the pot cover from being broken or the steam from directly escaping to cause scalding and the like, and forms a substantially sealed inner cavity with the box body. In this way, the steam overflowing from the pressure relief valve can be supplemented to the conveying pipe through the exhaust mechanism, which can reduce the waste of the liquid medicine and can also increase the conveying speed of the steam in the pipeline. In addition, the exhaust mechanism introduces air from the air holes during the conveying process, which can reduce the temperature to a certain extent and reduce the water content in the airflow, so that the steam sprayed out is more comfortable.

[0017] Optionally, the box body is provided with an air blower and a first heating mechanism at positions corresponding to the air holes, the pipeline connected with the conveying pipe of the exhaust mechanism comprises a main pipe, a gas conveying branch pipe and an exhaust branch pipe, the main pipe is connected with the gas outlet end of the exhaust mechanism, the main pipe, the gas conveying branch pipe and the exhaust branch pipe are connected through a three-way structure with an adjustable opening degree, the gas conveying branch pipe is connected with the conveying pipe, and the gas conveying branch pipe is matched with a second heating mechanism.

[0018] By adopting the technical scheme, the amount and temperature of the air introduced from the outside can be controlled, and the amount of steam, the amount of air and the temperature after mixing input into the conveying pipe can also be controlled, so that the drug content of the airflow sprayed by the fumigation instrument can be controlled to a certain extent, and due to the regulation of the temperature and humidity, the actual temperature of the airflow can be higher than the dew point temperature, that is, the airflow can be in an unsaturated state through regulation, so that the liquefaction of steam can be effectively reduced, and even if the pipe wall is liquefied due to cooling, part of the water will be carried away with the airflow; in this way, the influence of water vapor liquefaction can be reduced at the source.

[0019] Optionally, the treatment head comprises a nozzle seat, a rotating disc and a plurality of nozzles, the nozzle seat is provided with a nozzle channel in communication with the conveying pipe, the rotating disc is rotatable relative to the nozzle seat, the rotating disc is provided with a plurality of nozzle channels which are in communication with the nozzle channel when the rotating disc rotates to a specific position, and each nozzle is arranged on the axial end surface of the rotating disc in the circumferential direction of the rotating disc and is in communication with a nozzle channel.

[0020] By adopting the technical scheme, different nozzles can adopt different air spraying modes, and the transformation between different nozzles can be realized through the rotating disc, so that the air spraying mode can be adjusted at any time according to the use requirements of different acupoints and different situations during use.

[0021] Optionally, the nozzle channel comprises a front channel and a rear channel, the rear channel is in communication with the nozzle channel, the front channel is in communication with the inner cavity of the conveying pipe, the inner wall of the front channel is fixedly provided with a stop block, the end portion of the stop block falls into the rear channel, the rear channel is a stepped hole, a sliding sleeve is embedded in the rear channel and can slide in the axial direction of the rear channel, the sliding sleeve is embedded with an air pipe, the air pipe can rotate relative to the sliding sleeve, the end portion of the air pipe is provided with a blocking portion, the blocking portion can be embedded between the stop block and the inner wall of the nozzle channel and jointly block the nozzle channel with the stop block, the air pipe is provided with an air channel, when the blocking portion is embedded between the stop block and the nozzle channel, the opening of the air channel is blocked by the stop block, the end portion of the air pipe is provided with a guide piece which cooperates with a rotating groove in the position of the nozzle channel to force the air pipe to rotate, the rear channel is provided with a first elastic member which acts on the sliding sleeve to force the air pipe to be embedded between the stop block and the nozzle channel, and the air pipe and the stop block have a guide structure which guides the blocking portion to enter between the stop block and the inner wall of the nozzle channel.

[0022] By adopting the technical scheme, in the state of non-use, the blocking part and the block jointly seal the spray channel under the pulling of the first elastic member, so that the initial stage of the steam generator generating a small amount of steam will not escape through the treatment head; when the amount of steam generation continues to increase and the air pressure in the spray channel continues to rise, the blocking part of the air pipe will be pushed away from the position of the block, and the sliding sleeve and the air pipe will move to the rotating groove. Then the air pipe enters the rotating groove, is guided by the guide member, and rotates relative to the sliding sleeve. In this way, the channel of the air pipe will be in a straight-line communication state with the spray channel, which is conducive to the smooth communication of the steam to the spray head. In addition, since the air pipe is embedded in the rotating groove at this time, on the one hand, the rotation of the rotating disc during the air jet process can be avoided, and on the other hand, a seal is formed, so that the steam is not easy to escape from the gap between the rotating disc and the spray seat; when the fumigation is completed and the steam no longer occurs, the air pressure decreases, the first elastic member pulls the sliding sleeve back, and under the guidance of the guide structure between the air pipe and the block, the blocking part of the air pipe will re-form the blockage to the spray channel.

[0023] Optionally, the inner wall of the rotating groove opposite to the air pipe is helical, the guide member comprises a guide seat fixed to the axial end face of the air pipe and a ball embedded in the guide seat, and the ball is partially exposed from the end and the side wall of the guide seat. When the air pipe is pushed into the rotating groove, the ball is in contact with the helical inner wall of the rotating groove.

[0024] By adopting the above technical scheme, when the air pipe is pushed into the rotating groove, the ball is in contact with the inner wall and the bottom of the rotating groove, and under the guidance of the helical bottom, the air pipe will rotate. In the above process, the guide seat can keep a certain interval between the ball and the end face of the air pipe, so that the end face of the air pipe will not be in contact with the bottom of the rotating groove during the rotating feeding process.

[0025] Optionally, the guide seat is provided with an expansion channel for the axial movement of the ball along the air pipe, and the expansion channel is provided with a second elastic member for forcing the ball to be exposed from the opening of the expansion channel; the end of the air pipe is provided with at least two guide members, and when the channel is opposite to the spray channel, the balls of the two guide members are in contact with the inner side wall of the rotating groove, respectively.

[0026] By adopting the above technical scheme, on the one hand, the impact between the air pipe pushed by the steam and the rotating groove can be reduced, and on the other hand, the ball has the elastic expansion capability relative to the guide seat. During the rotation of the rotating disc, the plane of the rotating disc will extrude the ball into the guide seat when it is in contact with the ball, and the ball will be released when the rotating groove reaches the corresponding position. In this way, the ball will have a obvious jamming feeling when it enters the rotating groove from the guide seat. Based on this characteristic, the ball will also serve as a positioning structure of the rotating disc, so that the rotating disc can be better matched with the air jet pipe after rotation.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The hard delivery pipe is connected by a rotating joint, each joint can rotate in a certain direction, so as to realize the adjustment of the spatial position of the treatment head, and the softness of each joint of the delivery pipe is not considered. In this way, on the one hand, the delivery pipe can adopt a larger pipe diameter relative to the traditional hose, so that even if the inner wall of the delivery pipe is liquefied water, the influence on steam delivery is small; on the other hand, the overall channel formed by the delivery pipe and the rotating joint is not easy to form a low point due to wrinkles, bends and the like, and is not easy to cause the effective pipe diameter to be reduced, and the liquefied water will flow smoothly along the overall pipe to the appropriate liquid storage position in the steam generating device. The rollers can make the steam generating device itself have the ability to move horizontally, and can make the hard pipe structure have flexibility close to the free movement of the hose; if a certain part forms a low point during adjustment, or the treatment head is not opened, so that the internal pressure of the pipe rises to a certain value. At this time, the continuously increasing steam will overflow through the pressure relief valve and be discharged through the exhaust mechanism, so that the steam in the pipe always maintains a safe value, thereby reducing or avoiding leakage at each joint, thereby ensuring the normal operation of a fumigator, effectively reducing the adverse effects of steam liquefaction on a fumigator, and maintaining good treatment effect of a fumigator;

[0029] 2. The steam overflowing from the pressure relief valve can be supplemented to the delivery pipe through the exhaust mechanism, which can reduce the waste of drug liquid on the one hand, and can also enhance the delivery speed of the steam in the pipe on the other hand. In addition, the exhaust mechanism also introduces air from the air hole during delivery, which can reduce the temperature to a certain extent and reduce the water content in the airflow, so as to reduce or not increase the amount of liquefied water while cooling the airflow in the delivery pipe, so that the sprayed steam is more comfortable. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the overall structure diagram of a fumigator of the embodiment.

[0031] Figure 2 is a structure diagram of a fumigator of the embodiment, wherein the cover of the steam generating device is in an open state.

[0032] Figure 3 is a structure diagram of a fumigator of the embodiment.

[0033] Figure 4 is the overall structure diagram of the arm rod of the embodiment.

[0034] Figure 5 is a connection structure diagram of the delivery pipe and the rotating joint of the embodiment.

[0035] Figure 6 is an exploded view of the treatment head of the present embodiment.

[0036] Figure 7 is an internal structure view of the treatment head of the present embodiment.

[0037] Figure 8 is an exploded view of the treatment head of the present embodiment from another perspective.

[0038] Figure 9 is a structure view of the vent tube of the present embodiment.

[0039] BRIEF DESCRIPTION OF THE DRAWINGS: 1, treatment head; 11, spray seat; 111, spray channel; 1111, front channel; 1112, rear channel; 112, stop block; 113, sliding sleeve; 1131, ring groove; 114, first elastic member; 115, vent tube; 1151, protruding ring; 1152, blocking portion; 1153, vent channel; 12, rotary disc; 121, connecting channel; 122, rotary groove; 13, spray head; 14, guide member; 141, guide seat; 142, ball; 143, second elastic member; 144, telescopic channel; 2, delivery tube; 21, water storage bottle; 22, ring groove; 23, fixed block; 24, rotating shaft; 3, rotary connecting member; 31, sleeve; 32, track sleeve; 321, unit sleeve; 322, annular slide; 323, fastener; 33, sliding block; 4, input tube; 41, flange; 5, steam generating device; 51, kettle body; 52, kettle cover; 53, steam receiving pipeline; 54, limiting catch; 55, limiting plate; 56, pressure relief valve; 6, roller; 61, protective cover; 62, vent hole; 63, exhaust mechanism; 64, air blower; 65, first heating mechanism; 66, main pipe; 67, gas delivery branch pipe; 68, exhaust branch pipe; 69, second heating mechanism; 101, arm lever; 102, box body. DETAILED DESCRIPTION

[0040] The following description will be made in conjunction with the accompanying drawings. Figures 1-8 The present application will be further described in detail.

[0041] The present embodiment discloses a fumigation instrument.

[0042] Referring to Figure 1 A fumigation instrument includes an arm lever 101 and a box body 102, the box body 102 is internally provided with a steam generating device 5, the steam generating device 5 generates steam containing drug components by cooking drugs, the arm lever 101 is installed on the side wall of the box body 102, and the steam will finally act on a fumigation site or other auxiliary fumigation instrument through the arm lever 101.

[0043] Referring to Figure 1 and Figure 2The bottom of the box 102 is provided with a roller 6, which is a universal wheel in this embodiment. The box 102 is provided with a cavity for placing the steam generating device 5 and an opening at the top. The top of the box 102 is provided with a protective cover 61 which is reversibly connected to the box 102 and can close the opening at the top of the box 102.

[0044] The steam generating device 5 comprises a pot body 51 and a pot cover 52. The side end of the pot body 51 is fixed with a limiting catch 54, and the top of the pot cover 52 is fixed with a limiting plate 55. After the pot cover 52 covers the pot body 51, the limiting plate 55 can be brought into the coverage range of the catch by rotating the pot cover 52, so as to complete the limiting. The catch and the limiting plate 55 constitute a locking structure which prevents the pot cover 52 from being opened by steam.

[0045] The inner wall of the pot body 51 is fixed with a steam receiving pipeline 53 which is in communication with the arm rod 101. The steam receiving pipeline 53 receives steam in the pot body 51 and then transmits the steam to the arm rod 101.

[0046] The pot cover 52 is provided with a pressure relief valve 56. When the arm rod 101 is blocked or continuously kept at a high speed for steam delivery, part of the steam will escape into the cavity of the box 102 through the pressure relief valve 56.

[0047] In order to utilize or discharge the part of the steam, with reference to Figure 1 and Figure 3 , one side wall of the box 102 is provided with an exhaust mechanism 63 which is a fan in this embodiment, and in other embodiments can be other types of air guiding structures. The other opposite side wall of the box 102 is provided with a plurality of air holes 62 which penetrate the box 102. Correspondingly, the box 102 is provided with an air guiding fan 64 and a first heating mechanism 65 at positions corresponding to the air holes 62. The air guiding fan 64 is fixed to the inner side wall of the box, and the first heating mechanism 65 is fixed with the air guiding fan 64. However, the distribution range of the air holes 62 is greater than the coverage range of the air guiding fan 64. That is, part of the air passing through the air holes 62 does not pass through the air guiding fan 64. This part of the air can pass from outside to inside or from inside to outside, depending on the overall flow proportion of the steam escaping from the exhaust mechanism 63, the air guiding fan 64 and the steam generating device 5. Another part of the air passing through the air holes 62 is heated by the first heating mechanism 65 after passing through the air guiding fan 64. In this embodiment, the first heating mechanism 65 is any heater which can heat flowing air and is waterproof.

[0048] With reference to Figure 1 and Figure 3The box 102 is provided with a pipeline matched with the exhaust mechanism 63, which includes a main pipe 66, a gas conveying branch pipe 67 and an exhaust branch pipe 68, and the main pipe 66 is connected with the gas outlet end of the exhaust mechanism 63. The main pipe 66, the gas conveying branch pipe 67 and the exhaust branch pipe 68 are connected through a three-way structure with a controlled opening. The gas conveying branch pipe 67 is communicated with the arm rod 101, and the pipeline of the gas conveying branch pipe 67 is matched with a second heating mechanism 69, which is any heater capable of heating flowing air and waterproof. The exhaust mechanism 63 can select to exhaust outward through the exhaust branch pipe 68, select to assist the gas conveying of the arm rod 101 through the gas conveying branch pipe 67, or combine the two in a certain ratio.

[0049] With reference to Figure 1 and Figure 4 The arm rod 101 includes a treatment head 1 and a plurality of conveying pipes 2, and a rotating connecting piece 3 is connected between adjacent conveying pipes 2, so that adjacent conveying pipes 2 can rotate relative to each other on the basis of maintaining communication, and the treatment head 1 is connected with the terminal conveying pipe 2.

[0050] The conveying pipe 2 is a hard pipe, which requires that it will not deform naturally in the environment of passing through water vapor, such as a plastic pipe or a metal pipe. The plurality of conveying pipes 2 have the same function of constituting a steam channel, but the structure can be selected according to the need of angle or rotation angle. In the embodiment, the selection of the conveying pipe 2 is straight pipe, elbow pipe, elbow pipe, straight pipe in turn according to the conveying direction of steam. In other embodiments, more elbow pipes can be connected, and each additional elbow pipe adds one rotation joint of the treatment head 1 relative to the beginning of the overall steam channel, so that the position adjustment is more flexible.

[0051] The conveying pipe 2 at the beginning is vertically arranged, and the side wall of the conveying pipe 2 is communicated with an input pipe 4. The end of the input pipe 4 is provided with a flange 41, and the input pipe 4 is fixed to the side wall of the box 102 through the flange 41. A steam receiving pipeline 53 is communicated with the input pipe 4, and the gas conveying branch pipe 67 is communicated with the conveying pipe 2 at the beginning, and the opening of the gas conveying branch pipe 67 communicated with the conveying pipe 2 faces upward. The lower end of the conveying pipe 2 at the beginning is detachably connected with a water storage bottle 21, and in the embodiment, the detachable connection is screw connection.

[0052] With reference to Figure 4 and Figure 5The rotating connecting piece 3 comprises a sleeve 31, a track sleeve 32 and a sliding block 33. The sleeve 31 is fixed to one of the conveying pipes 2 and sleeved to the other conveying pipe 2. Correspondingly, the outer wall of the conveying pipe 2 inserted into the sleeve 31 is provided with a plurality of second annular grooves 221 distributed along the axial direction. In this embodiment, two second annular grooves 221 are taken as an example, and the second annular grooves 221 are embedded with sealing rings. In other embodiments, if it is desired to strengthen the rotational damping between the conveying pipes 2, the number of the second annular grooves 221 can be increased to more than two. The second annular grooves 221 close to the adjacent conveying pipes 2 are embedded with sealing rings, and the second annular grooves 221 away from the adjacent conveying pipes 2 are embedded with damping members.

[0053] The track sleeve 32 is fixed to the sleeve 31 and provided with annular sliding channels 322 on the inner wall. The annular sliding channels 322 are at least two and arranged along the axial direction of the sleeve 31. The sliding block 33 is fixed to the outer wall of the conveying pipe 2 inserted into the sleeve 31. The sliding block 33 is embedded in the annular sliding channels 322 and can slide along the annular sliding channels 322.

[0054] The track sleeve 32 comprises at least two unit sleeves 321 which are closed to form a ring. In this embodiment, two unit sleeves 321 are taken as an example. One of the unit sleeves 321 is fixed to the sleeve 31, and the other unit sleeve 321 is connected to the fixed unit sleeve 321 by a fastener 323. In this embodiment, the fastener 323 is a bolt, and the two unit sleeves 321 are provided with holes matched with the bolt. For the annular sliding channels 322, the annular sliding channels 322 of the fixed unit sleeve 321 completely penetrate through both ends of the fixed unit sleeve 321. The free unit sleeve 321 can be provided with complete annular sliding channels 322, so that the conveying pipe 2 can rotate freely relative to the sleeve 31. Alternatively, the free unit sleeve 321 can be provided with incomplete annular sliding channels 322 or closed annular sliding channels 322 without annular sliding channels 322. In this case, the conveying pipe 2 can only rotate within a certain angle range relative to the sleeve 31.

[0055] Referring to Figure 6 and Figure 7 , the treatment head 1 comprises a spray seat 11, a rotating disc 12 and a plurality of spray heads 13. The spray seat 11 is fixed to the terminal conveying pipe 2. The spray seat 11 is provided with a spray channel 111 communicated with the conveying pipe 2. The side wall of the conveying pipe 2 is fixed with a fixed block 23, and the fixed block 23 is fixed with a rotating shaft 24. The rotating disc 12 is rotationally connected to the rotating shaft 24. The rotating disc 12 is provided with a plurality of connecting channels 121 communicated with the spray channel 111 when the rotating disc 12 rotates to a specific position. In this embodiment, the spray channel 111 is the only one, and the specific position corresponds to the position where the connecting channel 121 rotates to the highest point of the rotating disc 12. The spray heads 13 are distributed on the axial end surface of the rotating disc 12 along the circumferential direction of the rotating disc 12, and each spray head 13 is communicated with a connecting channel 121.

[0056] The spray channel 111 includes a front channel 1111 and a rear channel 1112, wherein the rear channel 1112 communicates with the connecting channel 121, and the front channel 1111 communicates with the inner cavity of the conveying pipe 2. The inner wall of the front channel 1111 is fixed with a stopper 112, and the end portion of the stopper 112 falls into the rear channel 1112. The rear channel 1112 is a stepped hole, and a sliding sleeve 113 is embedded in the rear channel 1112. The sliding sleeve 113 can slide along the axial direction of the rear channel 1112. A first elastic member 114 acting on the sliding sleeve 113 is arranged in the rear channel 1112. The first elastic member 114 is a tension spring, and the two ends of the first elastic member 114 are fixed with the sliding sleeve 113 and the inner wall of the stopper 112 respectively.

[0057] The sliding sleeve 113 is embedded with a vent pipe 115, and the side wall of the vent pipe 115 is provided with a convex ring 1151. The sliding sleeve 113 is provided with a first ring groove 1131 for embedding the convex ring 1151. In this way, the vent pipe 115 can rotate relative to the sliding sleeve 113, but the axial movement of the vent pipe 115 relative to the sliding sleeve 113 is limited, and the vent pipe 115 can only slide together with the sliding sleeve 113. The end of the vent pipe 115 away from the rotating disc 12 is provided with a blocking portion 1152, which can be embedded between the stopper 112 and the inner wall of the spray channel 111 and block the spray channel 111 together with the stopper 112. The vent pipe 115 is provided with a vent passage 1153, and when the blocking portion 1152 is embedded between the stopper 112 and the spray channel 111, the opening of the vent passage 1153 is blocked by the stopper 112. The first elastic member 114 acts on the sliding sleeve 113 to force the vent pipe 115 to be embedded between the stopper 112 and the spray channel 111.

[0058] Referring to Figure 7 and Figure 8 , the rotating disc 12 is provided with a rotating groove 122 at the position where the connecting channel 121 is located on the end of the rotating disc 12 facing the spray seat 11. The inner wall of the rotating groove 122 opposite to the vent pipe 115 is helical, and the end of the vent pipe 115 is provided with two guide members 14. When the conveying pipe 2 conveys a large amount of steam, the sliding sleeve 113 and the vent pipe 115 will be forced to move towards the rotating disc 12, wherein the vent pipe 115 will be embedded in the rotating groove 122, and the guide members 14 will be in contact with the helical groove bottom of the rotating groove 122.

[0059] Referring to Figure 6 and Figure 9The guide 14 includes a guide seat 141 and a ball 142. The guide seat 141 is fixed to the axial end surface of the ventilation pipe 115. The guide seat 141 is provided with an expansion channel 144 along the axial direction of the ventilation pipe 115. The circumferential side wall of the guide seat 141 and the end away from the ventilation pipe 115 are both provided with an opening. The ball 142 is embedded in the expansion channel 144 of the guide seat 141 and can move in the expansion channel 144 of the guide seat 141 along the axial direction of the ventilation pipe 115. Part of the ball 142 is exposed from the two openings of the guide seat 141. The expansion channel 144 is provided with a second elastic member 143 to force the ball 142 to be exposed from the end opening of the expansion channel 144. When the ventilation pipe 115 is pushed into the rotating groove 122, the ball 142 first contacts the inner side wall of the rotating groove 122 to play a guiding and correcting role, and then contacts the spiral groove bottom of the rotating groove 122. At this time, the blocking part 1152 of the ventilation pipe 115 is completely separated from the position where the stop block 112 is located, and then the ball 142 moves along the spiral groove bottom, and the ventilation pipe 115 rotates correspondingly.

[0060] For the two guide parts 14, the two guide parts 14 are distributed at the positions close to the circumferential edge of the end of the ventilation pipe 115 along the radial direction of the ventilation pipe 115. When the connecting channel 121 is opposite to the spray channel 111, the balls 142 of the two guide parts 14 respectively contact the inner side wall of the rotating groove 122.

[0061] Referring to Figure 9 When the steam delivery amount in the delivery pipe 2 is reduced or cancelled, the ventilation pipe 115 and the sliding sleeve 113 are retracted into the spray channel 111 under the action of the first elastic member 114. In order to reset the ventilation pipe 115, the end of the stop block 112 is also provided with a spiral shape, and the end of the ventilation pipe 115 is also provided with the above-mentioned guide part 14.

[0062] The implementation principle of the embodiment is:

[0063] During installation:

[0064] According to the requirements, the corresponding specifications and shapes of the delivery pipe 2 are selected. The more the number of the delivery pipe 2 of the elbow type, the higher the degree of freedom of rotation, but the more the curved channels, and the smoothness of steam delivery will also decrease. After selection, the part of the delivery pipe 2 with the sliding block 33 is embedded into the fixed unit sleeve 321, and the sliding block 33 is embedded into the annular sliding channel 322. Then the other unit sleeve 321 is installed to the fixed unit sleeve 321 through the fastener 323 to form a complete annular shape and is reinforced by the fastener 323. Then the input pipe 4 is installed to the gas source through the flange 41.

[0065] During use:

[0066] Select a suitable spray head 13, and rotate the rotating disc 12 to correspond the spray head 13 to the spray seat 11.

[0067] The medicine and water are put into the steam generator 5, and then the steam is generated by boiling. The exhaust mechanism 63 works synchronously to introduce air into the delivery pipe 2 and push the air pipe 115 into the rotating disc 12 to open the passage of the treatment head 1, and then the air originally deposited in the delivery pipe 2 is exhausted, and then the exhaust mechanism 63 is closed.

[0068] The steam generator 5 generates steam, and the steam reaches the treatment head 1 along the steam passage formed by the arm rod 101. After a certain air pressure is accumulated, the air pipe 115 is pushed into the rotating disc 12, and the steam is sprayed from the hole position of the treatment head 1. At this time, air can be supplemented by the air exhaust mechanism.

[0069] At the same time, the liquefied water in the delivery pipe 2 flows back and is finally stored in the water storage bottle 21. After the fumigation is completed, the water storage bottle 21 can be taken out and the water therein can be poured out.

[0070] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A fumigation apparatus, characterized by: The utility model provides a steam treatment device, which comprises an arm rod (101), a box (102) and a steam generating device (5) in the box (102), the arm rod (101) comprises a treatment head (1) and a plurality of hard conveying pipes (2), a rotary connecting piece (3) is connected between adjacent conveying pipes (2), a conveying pipe (2) at a starting position is communicated with the steam generating device (5) through a pipeline, a conveying pipe (2) at an end position is communicated with the treatment head (1), the treatment head (1) is provided with a roller (6) at the bottom of the box (102), the steam generating device (5) is matched with a pressure relief valve (56), and the box (102) is matched with an exhaust mechanism (63) for exhausting the inner cavity of the box (102). The treatment head (1) comprises a spray seat (11), a rotating disc (12) and a plurality of spray heads (13), the spray seat (11) is provided with a spray channel (111) communicated with the conveying pipe (2), the rotating disc (12) is rotatable relative to the spray seat (11), the rotating disc (12) is provided with a plurality of channel connecting pieces (121) communicated with the spray channel (111) when the rotating disc (12) rotates to a specific position, and the spray heads (13) are distributed on the axial end surface of the rotating disc (12) in the circumferential direction of the rotating disc (12) and are communicated with the channel connecting pieces (121). The spray channel (111) comprises a front channel (1111) and a rear channel (1112), the rear channel (1112) is communicated with the channel connecting piece (121), the front channel (1111) is communicated with the inner cavity of the conveying pipe (2), the inner wall of the front channel (1111) is fixedly provided with a stop block (112), the end portion of the stop block (112) falls into the rear channel (1112), the rear channel (1112) is a stepped hole, the rear channel (1112) is inlaid with a sliding sleeve (113) which can slide in the axial direction of the rear channel (1112), the sliding sleeve (113) is inlaid with a breather pipe (115), the breather pipe (115) is rotatable relative to the sliding sleeve (113), the end portion of the breather pipe (115) is provided with a blocking portion (1152), the blocking portion (1152) can be embedded between the stop block (112) and the inner wall of the spray channel (111) and jointly block the spray channel (111) with the stop block (112), the breather pipe (115) is provided with a breather channel (1153), when the blocking portion (1152) is embedded between the stop block (112) and the spray channel (111), the opening of the breather channel (1153) is blocked by the stop block (112), the end of the rotating disc (12) towards the spray seat (11) is provided with a rotating groove (122) at the position of the channel connecting piece (121), the end portion of the breather pipe (115) is provided with a guide piece (14) matched with the rotating groove (122) to force the breather pipe (115) to rotate, and the rear channel (1112) is provided with a first elastic piece (114) acting on the sliding sleeve (113) to force the breather pipe (115) to be embedded between the stop block (112) and the spray channel (111).

2. A fumigation apparatus as claimed in claim 1, wherein: The side wall of the conveying pipe (2) at the starting position is fixed with an input pipe (4) which is communicated with the conveying pipe (2) and is fixed to the side wall of the box (102), the conveying pipe (2) is spaced from the side wall of the box (102), and the lower end of the conveying pipe (2) is detachably connected with a water storage bottle (21).

3. A fumigator according to claim 1, wherein: The rotating connecting piece (3) comprises a sleeve (31), a track sleeve (32) and a sliding block (33), the sleeve (31) is fixed to one of the conveying pipes (2) and is sleeved with the other conveying pipe (2), the track sleeve (32) is fixed to the sleeve (31) and is provided with an annular slide (322) on the inner wall, and the sliding block (33) is fixed to the outer wall of the conveying pipe (2) which is inserted with the sleeve (31), the sliding block (33) is embedded in the annular slide (322) and can slide along the annular slide (322).

4. A fumigator according to claim 3, wherein: The track sleeve (32) comprises at least two unit sleeves (321) which are closed to form a ring, one of the unit sleeves (321) is fixed with the sleeve (31), and the other unit sleeves (321) are connected with the fixed unit sleeve (321) through fasteners (323); part of the unit sleeves (321) have the annular slide (322), part of the unit sleeves (321) do not have the annular slide (322) or only have a small part of the annular slide (322).

5. A fumigator according to claim 1, wherein: The steam generating device (5) comprises a kettle body (51) and a kettle cover (52), the pressure relief valve (56) is installed on the kettle cover (52), the box (102) is provided with a cavity for placing the steam generating device (5) and is provided with an opening at the top, the top of the box (102) is provided with a protective cover (61) which is reversibly connected with the box (102), the kettle body (51) and the kettle cover (52) have a locking structure which prevents the kettle cover (52) from being opened by steam, the gas outlet end of the exhaust mechanism (63) is communicated with the conveying pipe (2) through a pipeline, and the side wall of the box (102) is provided with a plurality of through air holes (62).

6. A fumigator according to claim 5, wherein: The box (102) is provided with an air guide fan (64) and a first heating mechanism (65) at the position corresponding to the air hole (62), the pipeline which is communicated with the conveying pipe (2) of the exhaust mechanism (63) comprises a main pipe (66), a gas supply branch pipe (67) and an exhaust branch pipe (68), the main pipe (66) is connected with the gas outlet end of the exhaust mechanism (63), the main pipe (66), the gas supply branch pipe (67) and the exhaust branch pipe (68) are connected through a three-way structure with adjustable opening degree, the gas supply branch pipe (67) is communicated with the conveying pipe (2), and the second heating mechanism (69) is matched on the pipeline of the gas supply branch pipe (67).

7. A fumigator according to claim 1, wherein: The inner wall of the rotating groove (122) opposite to the vent pipe (115) is helical, the guide (14) comprises a guide seat (141) fixed to the axial end surface of the vent pipe (115) and a ball (142) embedded in the guide seat (141), the ball (142) partially exposes from the end and the side wall of the guide seat (141), when the vent pipe (115) is pushed into the rotating groove (122), the ball (142) is in contact with the helical inner wall of the rotating groove (122).

8. A fumigator according to claim 7, characterised in that: The guide seat (141) is provided with a telescopic channel (144) for the axial movement of the ball (142) along the vent pipe (115), the telescopic channel (144) is provided with a second elastic member (143) for forcing the ball (142) to expose from the opening of the telescopic channel (144); the end of the vent pipe (115) is provided with at least two guides (14), when the connecting channel (121) is opposite to the spraying channel (111), the balls (142) of the two guides (14) are in contact with the inner side wall of the rotating groove (122) respectively.

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