Spray rod assembly of a fumigation machine

Abstract

The invention discloses a spray bar assembly of a fumigator, which is arranged on a machine body and has a spray head at the upper end; the spray bar assembly comprises a first adjusting mechanism, a second adjusting mechanism and a connecting pipe; the first adjusting mechanism, through which the spray bar assembly can be adjusted to swing horizontally and vertically; the second adjusting mechanism, through which the spray bar assembly can be adjusted to swing; the connecting pipe comprises a first connecting pipe interconnected with the first adjusting mechanism and the second adjusting mechanism; and a second connecting pipe interconnected with the second adjusting mechanism and the spray head; the invention uses a design of two combined joints to enable the spray bar assembly to have multiple joint degrees of freedom; the position adjustment of the spray head of the spray bar assembly will be more free and flexible; and at the same time, the combined design of the joints avoids the bending and folding of the internal components of the spray bar caused during the joint connection and combination process.

Description

Technical Field

[0001] The invention belongs to the technical field of fumigation equipment, and in particular relates to a spray rod assembly of a fumigator. Background Art

[0002] Fumigation therapy is a treatment method in traditional Chinese medicine, mainly used for the treatment of mental illness, rheumatoid arthritis and other diseases. The fumigator is a product that combines existing science and technology with traditional Chinese medicine. The current fumigator mainly includes a steam generator and a steam spray rod assembly; the steam generator is mainly used to heat the liquid medicine containing Chinese medicine ingredients, vaporize the liquid medicine, and then spray the steam to the designated location through the steam spray rod assembly.

[0003] The main function of the steam spray rod assembly is to support and stabilize the nozzle to achieve the purpose of fixing the steam spraying position. The existing spray rod assembly generally includes a plurality of interconnected joints, each of which can rotate within a certain range and can be locked at any angle; support rods are designed between the joints; the support rods are hollow inside and can accommodate pipelines. For example, the Chinese patented intelligent Chinese medicine fumigator (publication number: CN205885793U) discloses a fumigation device with a full-angle joint mechanical arm, which adopts a clamp friction joint structure and uses metal precision processing. The joint has a certain damping and can stop at any angle; however, according to its disclosed technical solution, the main problem it solves is to expand the treatment range of the nozzle of the fumigator through a full-angle joint mechanical arm.

[0004] However, in practice, this full-angle joint robotic arm is not suitable for use in fumigation equipment; fumigation equipment uses hot steam to fumigate the diseased part, and steam with a certain amount of heat can achieve the therapeutic effect, but the full-angle joint robotic arm will appropriately increase the length of the entire component in order to increase the degree of freedom; as the length increases, the heat dissipation of the pipeline will also increase synchronously, which may cause the steam temperature at the steam outlet to fail to reach the therapeutic temperature, thereby reducing the therapeutic efficacy.

[0005] At the same time, according to its technical solution, there will be multiple turning joints on the full-angle joint robotic arm. The turning of the joints will increase the difficulty of condensation reflux. If the cooling water does not reflux in time, the nozzle will spray water and cause burns.

[0006] Therefore, although the spray bar assembly with multiple degrees of freedom can expand the range of motion of the treatment head, how to expand the range of motion of the spray bar assembly without affecting the condensed water return and temperature maintenance of the spray head will be an urgent problem to be solved. Summary of the invention

[0007] The invention provides a spray rod assembly for a fumigator, which has the characteristics of simple joint structure, small number of joints, and large range of motion of the treatment head; at the same time, the length of the pipeline is not increased, thereby avoiding heat loss; the pipeline inside the assembly is unobstructed and will not be blocked by condensed water.

[0008] A spray bar assembly of a fumigator, the spray bar assembly is arranged on a machine body, and a nozzle is arranged at the upper end thereof; the spray bar assembly comprises a first adjusting mechanism, a second adjusting mechanism, and a connecting pipe; the first adjusting mechanism, through which the spray bar assembly can be adjusted to swing horizontally and vertically; the second adjusting mechanism, through which the spray bar assembly can be adjusted to swing; the connecting pipe comprises a first connecting pipe interconnected with the first adjusting mechanism and the second adjusting mechanism; a second connecting pipe interconnected with the second adjusting mechanism and the nozzle; the first adjusting mechanism comprises a first joint, one end of which is fixed to the machine body and rotates around a vertical axis; a second joint hingedly arranged with the first joint and rotating around a horizontal axis; the second adjusting mechanism comprises a fourth joint rotating around an axis perpendicular to the axis of the connecting pipe; the first adjusting mechanism also comprises a third joint fixedly arranged with the second joint and fixedly arranged with the end of the first connecting pipe; the rotation axis of the third joint is arranged perpendicular to the rotation axis of the second joint;The second joint comprises a second fixed support, a second rotating support, a second torque balancing device, and a second locking device; the second fixed support is fixedly installed on the top of the annular disc; the second fixed support comprises a fixed shield, a horizontal rotating shaft, and a rotating shield; the fixed shield is in the shape of a circular bowl, and the bottom is fixedly connected to the top of the annular disc; the horizontal rotating shaft is in the shape of a stepped shaft, one end of which is fixedly connected to the fixed shield, and the other end is provided with a special-shaped shaft section, and the end of the special-shaped shaft is provided with a fixing nut; a torque balancing device mounting portion is also provided in the fixed shield; the second rotating support is hingedly installed on the horizontal rotating shaft; the second rotating support comprises two parallel circular support plates; the middle part of the circular support plate is provided with an axle tube hingedly installed with the middle part of the horizontal rotating shaft; the axle tube and the support plate are fixedly arranged to each other; the outer edge of the circular support plate is provided with an arc support plate, and the arc support plate is fixedly connected to the edges of the two circular support plates; the upper side of the arc support plate is provided with a through hole, and the other side is provided with an open notch; the angle of the open notch is greater than degrees and less than degrees; the The second locking device comprises a second fixed friction plate, a second rotating friction plate, and a second pressure device; the second rotating friction plate is annularly fixed on the second rotating support; the second fixed friction plate is slidably mounted on the horizontal rotating shaft; the second fixed friction plate is provided with a special-shaped hole inside, which is matched with the special-shaped shaft section in the middle of the horizontal rotating shaft, and the second fixed friction plate cannot rotate around the horizontal rotating shaft; the second fixed friction plate and the second rotating friction plate are contacted with each other, and the contact surface is a smooth surface; the second pressure device is arranged between the fixing nut and the second fixed friction plate; the second pressure device is a disc spring; on the outside of the second pressure device, a second fixed shield is also installed at the end of the horizontal rotating shaft; the second fixed shield and the fixed shield are symmetrically arranged; the second torque balancing device is arranged on the torque balancing device mounting part; the second torque balancing device is a torsion spring, and the torque balancing device mounting part is a cylindrical wall arranged on the fixed shield; one end of the second torque balancing device is fixedly connected to the fixed shield, and the other end is fixedly mounted on the second rotating support;;

[0009] Furthermore, the spray bar assembly is adjusted to have a horizontal swing range A1 of 0-200 degrees through the first adjustment mechanism;

[0010] Furthermore, the spray bar assembly can be swung up and down by the first adjustment mechanism, and the angle between the range A2 and the vertical direction is 0 to 90 degrees;

[0011] Furthermore, the spray bar assembly is swung through the second adjustment mechanism to adjust the range A3 to 0-20 degrees;

[0012] Further, the spray bar assembly is rotationally adjusted by a first adjustment mechanism; the adjustment range A4 is 0-180 degrees; the spray bar assembly is rotationally adjusted by a second adjustment mechanism; the adjustment range A5 is 0-90 degrees;

[0013] Furthermore, the second adjustment mechanism further comprises a fifth joint fixedly arranged with the fourth joint and with the end of the second connecting pipe; the rotation axis of the fifth joint and the rotation axis of the fourth joint are arranged perpendicular to each other;

[0014] Furthermore, the distance between the vertical plane where the rotation axis of the first joint is located and the vertical plane where the rotation axis of the third joint is located is less than the inner hole diameter of the connecting tube; the distance between the vertical planes where the rotation axes of the first joint and the fifth joint are located is less than 2 times the inner hole diameter of the connecting tube;

[0015] Furthermore, the rotation axes of the first joint, the third joint, and the fifth joint are arranged in the same plane.

[0016] The present invention provides a spray rod assembly of a fumigator, which is arranged on a machine body and has a nozzle at the upper end; the spray rod assembly comprises a first adjusting mechanism, a second adjusting mechanism and a connecting pipe; the first adjusting mechanism, through which the spray rod assembly can be adjusted to swing horizontally and vertically; the second adjusting mechanism, through which the spray rod assembly can be adjusted to swing; the connecting pipe comprises a first connecting pipe interconnected with the first adjusting mechanism and the second adjusting mechanism; and a second connecting pipe interconnected with the second adjusting mechanism and the nozzle; the present invention uses a design of two combined joints to integrate three rotating joints of the horizontal swing, up and down swing of the spray rod, and rotation of the spray rod around the first connecting pipe into the first connecting assembly; the two rotating joints of the folding of the spray rod and the rotation of the spray rod around the second connecting pipe are integrated into the second connecting assembly; the two integrated connecting assemblies enable the spray rod assembly to have five joint degrees of freedom; the nozzle position adjustment of the spray rod assembly will be more free and flexible; at the same time, the combined design of the joints avoids the bending and folding of the internal components of the spray rod caused by the joint connection and combination process. The first joint, the second joint and the third joint in the first connecting assembly are arranged vertically. When the spray boom swings horizontally and up and down, and rotates around the first connecting pipe, the pipe inside it has only one bending position. The pipe has few bending parts, which can avoid the problem of unsmooth water flow due to multiple bends in the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of a spray bar assembly of a fumigator of the present invention;

[0018] Figure 2 It is a left view of a spray bar assembly of a fumigator of the present invention;

[0019] Figure 3 A front view of a spray bar assembly of a fumigator according to the present invention;

[0020] Figure 4 It is a left view of a spray bar assembly of a fumigator of the present invention;

[0021] Figure 5 It is a left view of a first adjustment mechanism of a spray bar assembly of a fumigator according to the present invention;

[0022] Figure 6 It is an AA cross-sectional view of a spray bar assembly of a fumigator of the present invention;

[0023] Figure 7 A BB cross-sectional view of a spray bar assembly of a fumigator according to the present invention;

[0024] Figure 8 A CC cross-sectional view of a spray bar assembly of a fumigator according to the present invention;

[0025] Fig. 9 The present invention is a three-dimensional view of a spray bar assembly of a fumigator. DETAILED DESCRIPTION Example

[0026] Please see attached Figure 1-9 , a spray bar assembly of a fumigator, comprising: a machine body and a spray bar assembly;

[0027] The spray bar assembly is arranged on the machine body, and a spray head 4 is arranged at the upper end thereof;

[0028] The spray bar assembly comprises a first adjustment mechanism 1, a second adjustment mechanism 2, and a connecting pipe 3;

[0029] The connecting pipe 3 includes a first connecting pipe 31 and a second connecting pipe 32;

[0030] The first adjustment mechanism 1 comprises a first joint 11, one end of which is fixed to the machine body and rotates around a vertical axis; a second joint 12, which is hinged on the first joint 11 and rotates around a horizontal axis;

[0031] The first adjustment mechanism 1 further comprises a third joint 13 fixedly arranged with the second joint 12 and with the end of the first connecting tube 31 ; the rotation axis of the third joint 13 and the rotation axis of the second joint 12 are arranged perpendicular to each other.

[0032] The spray bar assembly can be adjusted to swing horizontally through the first joint 11 of the first adjustment mechanism 1, and the adjustment range A1 is 0-200 degrees;

[0033] The first joint 11 comprises a first fixed support 111 and a first rotating support 112 fixed to the body;

[0034] The first fixed support 111 is in an L-shaped support shape, including a vertical fixed plate 1111 arranged vertically and a horizontal fixed plate 1112 arranged horizontally;

[0035] The vertical fixing plate 1111 is provided with a through hole, and the first fixing support 111 is fixed to the machine body through the vertical fixing plate 1111, and the through hole and the pipeline outlet hole on the machine body are arranged correspondingly to each other;

[0036] The horizontal fixing plate 1112 is provided with a first rotating support hinge hole 1113;

[0037] Limit pins 1115 are provided on both sides of the first rotating support hinge hole 1113 of the horizontal fixing plate 1112;

[0038] There are two limit pins 1115, which are spaced 180 degrees apart.

[0039] A bearing 1114 is disposed in the hinge hole 1113 of the first rotating support;

[0040] The first rotating support 112 is installed in the first rotating support hinge hole 1113;

[0041] The first rotating support 112 includes a first hinge shaft 1121 and a first locking device 113;

[0042] The first hinge shaft 1121 has a through hole inside. The upper end of the first hinge shaft 1121 has an annular disc 1122.

[0043] The lower end of the first hinge shaft 1121 is hingedly mounted in the first rotating support hinge hole 1113 on the first fixed support 111, and the annular disc 1122 is arranged above the horizontal fixed plate 1112;

[0044] The bottom of the annular disc 1122 is provided with a semicircular limiting groove which cooperates with the limiting pin 1115;

[0045] The first locking device 113 includes a first fixed friction plate 1131, a first rotating friction plate 1132, and a first pressure device 1133;

[0046] The first fixed friction plate 1131 is annular and fixedly mounted on the lower surface of the horizontal fixed plate 1112 and is concentrically arranged with the first rotating support hinge hole 1113;

[0047] The first rotating friction plate 1132 is axially slidably mounted on the lower end of the first hinge shaft 1121;

[0048] The first rotating friction plate 1132 and the first fixed friction plate 1131 are arranged in contact with each other, and the contact surfaces are smooth surfaces;

[0049] The first rotating friction plate 1132 is provided with a special-shaped hole inside, which cooperates with the special-shaped shaft at the lower end of the first hinge shaft 1121, so that the first rotating friction plate 1132 cannot rotate around the first hinge shaft 1121;

[0050] The lower end of the first hinge shaft 1121 is also provided with a fixing nut;

[0051] The first pressure device 1133 is disposed between the fixing nut and the first rotating friction plate 1132;

[0052] The first pressure device 1133 is a disc spring;

[0053] The spray bar assembly can be adjusted to swing up and down through the second joint 12 of the first adjustment mechanism 1, and the adjustment range A2 is 0-90 degrees;

[0054] The second joint 12 includes a second fixed support 121, a second rotating support 122, a second torque balancing device 123, and a second locking device 124;

[0055] The second fixed support 121 is fixedly mounted on the top of the annular disc 1122;

[0056] The second fixed support 121 includes a fixed shield 1211, a horizontal rotating shaft 1212, and a rotating shield;

[0057] The fixed shield 1211 is in the shape of a circular bowl, and the bottom is fixedly connected to the top of the annular disc 1122;

[0058] The horizontal rotating shaft 1212 is in the shape of a stepped shaft, one end of which is fixedly connected to the fixed shield 1211, and the other end of which is provided with a special-shaped shaft section, and the end of the special-shaped shaft is provided with a fixing nut;

[0059] The fixed shield 1211 is also provided with a torque balancing device installation portion;

[0060] The second rotating support 122 is hingedly mounted on the horizontal rotating shaft 1212;

[0061] The second rotating support 122 includes two circular support plates 1221 arranged in parallel;

[0062] The middle of the circular support plate 1221 is provided with an axis tube 1222 which is hingedly mounted with the middle of the horizontal rotation shaft 1212;

[0063] The shaft tube 1222 and the support plate 1221 are fixedly arranged with each other;

[0064] The outer edge of the circular support plate 1221 is provided with an arc support plate, and the arc support plate is fixedly connected to the edges of the two circular support plates;

[0065] The arc support plate has a through hole on one side and an open notch 1225 on the other side;

[0066] The angle of the open notch 1225 is greater than 100 degrees and less than 150 degrees;

[0067] The second locking device 124 includes a second fixed friction plate 1241, a second rotating friction plate 1243, and a second pressure device 1242;

[0068] The second rotating friction plate 1243 is annularly fixed on the second rotating support 122;

[0069] The second fixed friction plate 1241 is slidably mounted on the horizontal rotating shaft 1212;

[0070] The second fixed friction plate 1241 is provided with a special-shaped hole inside, which cooperates with the special-shaped shaft section in the middle of the horizontal rotation shaft 1212. The second fixed friction plate 1241 cannot rotate around the horizontal rotation shaft 1212.

[0071] The second fixed friction plate 1241 and the second rotating friction plate 1243 are arranged in contact with each other, and the contact surfaces are smooth surfaces;

[0072] The second pressure device 1242 is disposed between the fixing nut and the second fixing friction plate 1241;

[0073] The second pressure device 1242 is a disc spring;

[0074] On the outer side of the second pressure device 1242, a second fixed shield 1244 is also installed at the end of the horizontal rotating shaft 1212;

[0075] The second fixed shield 1244 is symmetrically arranged with the fixed shield 1211;

[0076] The second torque balancing device 123 is arranged on the torque balancing device mounting portion;

[0077] The second torque balancing device 123 is a torsion spring, and the mounting portion of the torque balancing device is a cylindrical wall 1231 disposed on the fixed shield 1211;

[0078] One end of the second torque balancing device 123 is fixedly connected to the fixed shield 1211, and the other end is fixedly installed to the second rotating support 122;

[0079] The spray bar assembly is rotatably adjusted through the third joint 13 of the first adjustment mechanism 1, and the adjustment range A4 is 0-180 degrees;

[0080] The rotation axis of the third joint 13 and the rotation axis of the second joint 12 are arranged perpendicular to each other;

[0081] The third joint 13 is fixedly connected to the second rotating support 122 by a third fixed pipe 131;

[0082] The third fixed tube 131 and the through holes on the arc support plate of the second rotating support 122 are arranged corresponding to each other;

[0083] The third fixing tube 131 is provided with a rotation limiting groove, and the rotation limiting groove is used to limit the rotation angle of the first connecting tube 31 installed in the third fixing tube 131;

[0084] The rotation limiting groove is arranged on the tube wall of the third fixed tube 131 and arranged along the circumferential direction of the third fixed tube 131, and the angle range is 0-180 degrees;

[0085] One end of the first connecting pipe 31 is installed in the third fixing pipe 131;

[0086] The end of the third fixing tube 131 is provided with a limiting pin which matches the rotation limiting groove;

[0087] The second fixed shield 1244 and the fixed shield 1211 are also provided with a second joint 12 rotation limiting groove 1245;

[0088] The rotation limiting groove 1245 is used to limit the rotation angle of the second rotation support 122 of the second joint 12;

[0089] The rotation limiting groove 1245 is arranged on one side of the upper part of the second fixed shield 1244 and the fixed shield 1211;

[0090] The adjustment range of the second rotating support 122 in the rotating limit groove 1245 is based on the vertical direction, and the adjustment range is 0-90 degrees;

[0091] When the torsion spring of the second torque balancing device 123 is in a state of minimum torsion, the axis of the third fixed tube 131 on the second rotating support 122 is in a vertical state;

[0092] The distance between the vertical plane where the rotation axis of the first joint 11 is located and the vertical plane where the rotation axis of the third joint 13 is located is smaller than the inner hole diameter of the connecting pipe 3;

[0093] The distance between the vertical planes where the rotation axes of the first joint 11 and the fifth joint 22 are located is less than 2 times the inner diameter of the connecting pipe 3;

[0094] The rotation axes of the first joint 11, the third joint 13, and the fifth joint 22 are arranged in the same plane;

[0095] The second adjustment mechanism 2 comprises a fourth joint 21;

[0096] The spray bar assembly is swung and adjusted by the fourth joint 21 of the second adjustment mechanism 2, and the adjustment range A3 is 0-20 degrees;

[0097] The fourth joint 21 is fixed to the end of the first connecting pipe 31;

[0098] The fourth joint 21 comprises a fourth fixed support 211 and a fourth movable support 212 which are hingedly connected to each other, and a fourth friction locking device is provided between the fourth fixed support 211 and the fourth movable support 212 .

[0099] It also includes a fifth joint 22; the spray bar assembly is rotationally adjusted through the second adjustment mechanism 2, and the adjustment range A5 is 0-90 degrees.

[0100] The rotation axis of the fifth joint 22 and the rotation axis of the fourth joint 21 are arranged perpendicular to each other.

[0101] The fifth joint 22 comprises a fifth fixed tube 221 fixedly connected to the fourth movable support 212, and a rotation limiting groove is provided in the fifth fixed tube 221, and the rotation limiting groove is used to limit the rotation angle of the second connecting tube 32 installed in the fifth fixed tube 221;

[0102] At least one rubber pipeline is provided inside the first joint 11 , the second joint 12 , the third joint 13 , the fourth joint 21 , the fifth joint 22 , the first connecting pipe 31 , and the second connecting pipe 32 . The lower part of the pipeline is connected to the relevant components inside the machine body, and the upper end is connected to the nozzle 4 .

[0103] When in use, the spray bar assembly is manually moved, and the spray bar assembly rotates around the first joint 11, the second joint 12, the third joint 13, the fourth joint 21, and the fifth joint 22; the first joint 11 can rotate 0-200 degrees, and the second joint can rotate 0-110 degrees; the entire spray bar assembly can perform a combination of up and down swings and horizontal left and right swings around the first joint 11 and the second joint, and the first connecting pipe 31 of the spray bar assembly can also rotate in a circumferential direction around the third joint 13; the first connecting pipe 31 and the second connecting pipe 32 can be folded around the fourth joint 21; and the second connecting pipe 32 can rotate in a circumferential direction around the fifth joint 22. The position and angle of the spray head can be changed during the above rotation and folding process.

[0104] During the adjustment of the nozzle position, due to the gravity of the spray rod assembly, the spray rod assembly is locked at the first locking device 113 while rotating around the first joint 11; when rotating around the second joint 12, the second locking device 124 of the second joint is locked; after locking, the spray rod can be automatically locked and adjusted at any angle according to the need of adjustment. When the spray rod assembly is folded around the fourth joint 21, the fourth friction locking device can lock the folding angle of the spray rod to prevent the problem of unstable spray rod position locking during treatment.

[0105] The second joint of the present invention is provided with a second torque balancing device 123. Since the gravity torque generated by the entire spray boom assembly will completely act on the second joint 12 during the process of the spray boom rotating and folding, a larger locking force will be required when the second joint is required to lock the spray boom position. The traditional friction locking joint will use a larger friction force to lock the joint position, but this joint will be difficult to adjust after locking. The torsion spring of the second torque balancing device 123 provides a torque opposite to the gravity direction of the connecting assembly, and the torque of the torsion spring is equal to the torque generated by the gravity of the connecting assembly. At this time, the second locking device 124 of the second joint will only be used for the position locking of the second joint. At this time, the locking friction force will be far less than the situation where the second torque balancing device 123 is not applicable. The second locking device 124 only needs a smaller inner part to complete the position locking of the connecting assembly. Such a joint is convenient for angle adjustment and avoids the problem of inconvenient joint folding caused by excessive friction of the joint locking device.

[0106] The present invention uses the design of two combined joints to integrate the three rotating joints of the horizontal swing, up and down swing of the spray rod, and the rotation of the spray rod around the first connecting pipe 31 into the first connecting component; the two rotating joints of the folding of the spray rod and the rotation of the spray rod around the second connecting pipe 32 are integrated into the second connecting component; the two integrated connecting components make the spray rod assembly have five joint degrees of freedom; the nozzle position adjustment of the spray rod assembly will be more free and flexible; at the same time, the combined design of the joints avoids the bending and folding of the internal components of the spray rod caused by the joint connection and combination process. The first joint, the second joint, and the third joint in the first connecting component are arranged vertically. During the horizontal swing, up and down swing, and rotation of the spray rod around the first connecting pipe 31, the pipe inside it has only one pipe bending position, and the pipe has fewer bending parts, which can avoid the problem of unsmooth water flow due to multiple pipe bends.

[0107] The various joint connections of the present invention are designed in a coplanar manner with the rotation axis, which can reduce the location and number of pipe bends inside the spray rod assembly, so that the entire pipe has only two downward bending parts; the problem of unsmooth water flow due to multiple pipe bends can be avoided.

[0108] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A spray bar assembly of a fumigation machine, the spray bar assembly is arranged on a machine body, and a spray head (4) is arranged at the upper end thereof; characterized in that: The spray rod assembly comprises a first adjustment mechanism (1), a second adjustment mechanism (2), and a connecting pipe (3); the first adjustment mechanism (1), through which the spray rod assembly can be adjusted to swing horizontally and vertically; the second adjustment mechanism (2), through which the spray rod assembly can be adjusted to swing; the connecting pipe (3), comprising a first connecting pipe (31) interconnected with the first adjustment mechanism (1) and the second adjustment mechanism (2); a second connecting pipe (32) interconnected with the second adjustment mechanism (2) and the spray head (4); the first adjustment mechanism (1), comprising a first joint (11) with one end fixed to the machine body and rotating around a vertical axis; a water-repellent joint (11) hingedly arranged to rotate around a vertical axis. A second joint (12) that rotates about a parallel axis; the second adjustment mechanism (2) comprises a fourth joint (21) that rotates about an axis that is perpendicular to the axis of the connecting pipe (3); the first adjustment mechanism (1) further comprises a third joint (13) that is fixedly arranged with the second joint (12) and with the end of the first connecting pipe (31); the rotation axis of the third joint (13) and the rotation axis of the second joint (12) are arranged perpendicularly to each other; the second joint (12) comprises a second fixed support (121), a second rotating support (122), a second torque balancing device (123), and a second locking device (124); the second fixed support (121) is fixedly installed on the top of the annular disc (1122) ; The second fixed support (121) includes a fixed shield (1211), a horizontal rotating shaft (1212), and a rotating shield; the fixed shield (1211) is in the shape of a circular bowl, and the bottom is fixedly connected to the top of the annular disc (1122); the horizontal rotating shaft (1212) is in the shape of a stepped shaft, one end of which is fixedly connected to the fixed shield (1211), and the other end is provided with a special-shaped shaft section, and the end of the special-shaped shaft is provided with a fixing nut; the fixed shield (1211) is also provided with a torque balancing device installation portion; the second rotating support (122) is hingedly installed on the horizontal rotating shaft (1212); the second rotating support (122) includes two circular support plates (1221) arranged in parallel; the circular The middle part of the circular support plate (1221) is provided with an axle tube (1222) hingedly mounted with the middle part of the horizontal rotating shaft (1212); the axle tube (1222) and the support plate (1221) are fixedly arranged with each other; the outer edge of the circular support plate (1221) is provided with an arc support plate, and the arc support plate is fixedly connected with the edges of the two circular support plates; the upper side of the arc support plate is provided with a through hole, and the other side is provided with an open notch (1225); the angle of the open notch (1225) is greater than (100) degrees and less than (150) degrees; the second locking device (124) comprises a second fixed friction plate (1241), a second rotating friction plate (1243), and a second pressure device (1242);The second rotating friction plate (1243) is annularly fixed on the second rotating support (122); the second fixed friction plate (1241) is slidably mounted on the horizontal rotating shaft (1212); a special-shaped hole is provided inside the second fixed friction plate (1241), which cooperates with the special-shaped shaft section in the middle of the horizontal rotating shaft (1212), and the second fixed friction plate (1241) cannot rotate around the horizontal rotating shaft (1212); the second fixed friction plate (1241) and the second rotating friction plate (1243) are contacted with each other, and the contact surface is a smooth surface; the second pressure device (1242) is arranged between the fixing nut and the second fixed friction plate (1241); The second pressure device (1242) is a disc spring; the second fixed shield (1244) is also installed on the end of the horizontal rotating shaft (1212) outside the second pressure device (1242); the second fixed shield (1244) and the fixed shield (1211) are symmetrically arranged; the second torque balancing device (123) is arranged on the torque balancing device installation part; the second torque balancing device (123) is a torsion spring, and the torque balancing device installation part is a cylindrical wall (1231) arranged on the fixed shield (1211); one end of the second torque balancing device (123) is fixedly connected to the fixed shield (1211), and the other end is fixedly installed on the second rotating support (122). ; 2. The spray bar assembly of a fumigator according to claim 1, characterized in that: The spray bar assembly is adjusted to swing horizontally within a range A1 of 0-200 degrees through the first adjustment mechanism (1).

3. The spray bar assembly of a fumigator according to claim 2, characterized in that: The spray bar assembly is swung up and down by means of a first adjustment mechanism (1), and the range of adjustment A2 is such that the included angle between the vertical direction and the vertical direction is 0 to 90 degrees.

4. The spray bar assembly of a fumigator according to claim 3, characterized in that: The spray bar assembly is swung by the second adjustment mechanism (2) to a range A3 of 0-20 degrees.

5. A spray bar assembly for a fumigator according to claim 1 or 4, characterized in that: The spray bar assembly is rotationally adjusted by a first adjustment mechanism (1); the adjustment range A4 is 0-180 degrees; the spray bar assembly is rotationally adjusted by a second adjustment mechanism (2); the adjustment range A5 is 0-90 degrees.

6. A spray bar assembly for a fumigator according to claim 5, characterized in that: The second adjustment mechanism (2) further comprises a fifth joint (22) fixedly arranged with the fourth joint (21) and with the end of the second connecting pipe (32); the rotation axis of the fifth joint (22) and the rotation axis of the fourth joint (21) are arranged perpendicular to each other.

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