Pipe frame structure capable of adjusting spraying weight and spraying device

Abstract

The invention discloses a pipe frame structure capable of adjusting spraying weight and a spraying device. The pipe frame structure comprises a frame body and a liquid conveying pipe, and a matching piece is fixedly connected to the liquid conveying pipe; wherein the matching piece is movably assembled in the frame body, so that the distance between the upper end of the infusion tube and the upper end of the frame body is adjustable. According to the pipe frame structure capable of adjusting the spraying weight, the frame body and the liquid conveying pipe are designed in a split mode, so that the relative positions of the frame body and the liquid conveying pipe are adjustable, the spraying weight can be flexibly changed, and the using requirements of different doses are met; the production cost of manufacturers and the use cost of patients are effectively reduced; the spraying weight adjusting structure is simple, and operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a pipe rack structure with adjustable spray weight and a spray device. Background Art

[0002] In the related art, a container portion in a spray device (or atomizing device) is filled with liquid. When the container portion moves relative to a nozzle portion of the spray device, the liquid can be atomized and released outward from a nozzle opening of the nozzle portion.

[0003] In the existing spray device, the spray weight sprayed by the device each time is basically the same, and the principle is to achieve the function of quantitative spray weight through the pipe frame structure. For example, in the Chinese patent with publication number CN 117427246 A, the infusion pipe and the pipe frame are combined into one body, and because the distance between the second spiral surface of the pipe frame and the first spiral surface of the through cavity is constant, the upward or downward movement of the infusion pipe is always constant, thereby achieving the function of quantitative spray weight.

[0004] For manufacturers, in order to meet the needs of different patients, spray devices with different spray weights need to correspond to pipe rack structures of different sizes. This requires manufacturers to develop different types of pipe rack molds, which has disadvantages such as high production costs and low efficiency.

[0005] For the user, as the condition improves or worsens, they need to flexibly control the spray weight to ensure the best treatment effect. The existing integrated design makes the pipe frame structure unable to adjust the spray weight. Users need to prepare two or even more spray devices according to their own condition, which is costly and not convenient for carrying.

[0006] Based on the above problems, the present application proposes a pipe rack structure and a spray device with adjustable spray weight. Summary of the invention

[0007] The object of the present invention is to provide a pipe rack structure and a spray device with adjustable spray weight. By designing the pipe rack structure as a split body, the relative position of the rack body and the infusion tube can be adjusted, thereby changing the spray weight of the spray device and effectively reducing the manufacturer's production cost and the patient's use cost.

[0008] The purpose of the present invention is achieved by the following technical solutions: A pipe rack structure with adjustable spray weight comprises a rack body and an infusion tube, wherein a matching piece is fixedly connected to the infusion tube; wherein the matching piece can be movably assembled in the rack body, so that the distance from the upper end of the infusion tube to the upper end of the rack body is adjustable.

[0009] In the above scheme, by designing the frame and the infusion tube separately and making the relative position of the frame and the infusion tube adjustable, the spray weight can be flexibly changed to meet different usage environments. For manufacturers, only one set of molds is needed to produce pipe rack structures with different spray weights, which effectively reduces production costs, and the injection molding precision of the split molding is higher and the product yield is better; for users, the spray weight can be adjusted to correspond to different usage environments, which is convenient to use and reduces procurement costs.

[0010] In some embodiments, a through hole is provided in the frame, and the matching piece is threadedly connected to the through hole.

[0011] In the above scheme, by adopting the thread adjustment method, the distance from the upper end of the infusion tube to the upper end of the frame can be changed by adjusting the screwing depth of the matching piece, thereby changing the spray weight of the pipe rack structure, which has the advantages of simple operation and convenient adjustment.

[0012] In some embodiments, a through hole is provided in the frame, and the matching piece is transitionally matched with the through hole.

[0013] In the above scheme, the transition fit method is adopted, and by pressing to adjust the insertion depth of the matching piece, the distance between the upper end of the infusion tube and the upper end of the frame can also be changed to achieve the purpose of adjusting the spray weight. However, it should be noted that the above friction force should be greater than the pump pressure of the infusion tube on the liquid to ensure the overall stability of the tube rack structure.

[0014] In some embodiments, a through hole is disposed in the frame body, and at least one locking member is disposed in a side wall of the frame body for tightening the matching member in the through hole.

[0015] In the above scheme, the lateral locking method is adopted. When the spray weight of the pipe rack structure needs to be adjusted, the locking piece is loosened and the insertion depth of the matching piece is adjusted, and the locking piece is tightened again. However, it should be noted that when the locking piece is tightened, it needs to be sunk into the side hole or at least kept flush with the surface of the frame to avoid interference with the movement of the pipe rack structure.

[0016] In some embodiments, a thickness dimension of the through hole is greater than a thickness dimension of the matching piece.

[0017] In the above solution, the thicker through hole enables the frame to fully contact with the matching piece, thereby ensuring the fixing effect between the two. In addition, the thicker through hole also provides sufficient space for the matching piece, facilitating position adjustment.

[0018] In some embodiments, the adjustment distance from the upper end of the infusion tube to the upper end of the frame is ±10 mm.

[0019] In the above solution, the thickness difference range corresponds to the variable movement stroke of the pipe rack structure. This difference enables the pipe rack structure to adjust the spray weight within a larger range to meet different usage environments and has better versatility.

[0020] In some embodiments, a spiral portion is provided inside the frame, and the spiral portion is used to cooperate with the upper shell portion of the rotary spray device, thereby driving the infusion tube to move downward and reset.

[0021] In some embodiments, a collar portion is disposed at the bottom of the frame, and the collar portion is used to connect to a container portion of the spray device.

[0022] In some embodiments, a convex ring portion is further provided in the frame, and the convex ring portion is used to cooperate with the upper shell portion of the spray device to limit the upward movement of the infusion tube.

[0023] In the above scheme, the upward movement of the infusion tube is restricted by the convex ring part for a second time, so that the spray weight of each spray is kept consistent, thereby improving the spray quality and effect.

[0024] In some embodiments, a groove is provided on the outer circumference of the infusion tube, and the matching piece is partially embedded in the groove.

[0025] In the above solution, the groove design improves the bonding strength between the infusion tube and the matching component, preventing the infusion tube from axial movement and affecting the spray effect.

[0026] The present invention also provides a spray device, comprising the above-mentioned pipe rack structure with adjustable spray weight.

[0027] In the above scheme, the spray device equipped with the pipe rack structure has the function of adjusting the spray weight, which can meet the needs of different usage scenarios and is easy to use.

[0028] In some embodiments, the spray device further comprises: An upper shell portion, wherein a through cavity portion is disposed at the center of the upper shell portion, and a guide portion is disposed at the periphery of the through cavity portion; A nozzle portion is disposed in the through cavity portion, and the nozzle portion is provided with a fluid channel; A main rotating body, rotatably connected to the upper shell part, wherein the pipe frame structure is arranged in the main rotating body and can move up and down with the rotation of the main rotating body; an actuating member, disposed above the main rotating body, the actuating member being configured to lock the pipe support structure after the liquid loading state is completed, and to unlock the pipe support structure before the spraying state; The spring is arranged below the pipe rack structure and is in a compressed state when the pipe rack structure is locked.

[0029] Compared with the prior art, the beneficial effects of the present invention include at least: 1. By designing the frame and the infusion tube separately, the relative position of the frame and the infusion tube can be adjusted, so that the spray weight can be flexibly changed to meet the needs of different usage scenarios.

[0030] 2. Effectively reduce the production cost of manufacturers and the use cost of patients.

[0031] 3. The structure of adjusting the spray weight is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional schematic diagram of the pipe rack structure with adjustable spray weight of the present invention.

[0033] Figure 2a It is a structural schematic diagram of the infusion tube of the present invention moving downward relative to the frame.

[0034] Figure 2b It is a structural schematic diagram of the infusion tube of the present invention moving upward relative to the frame.

[0035] Figure 3 It is an exploded schematic diagram of the pipe rack structure with adjustable spray weight of the present invention.

[0036] Figure 4 It is another exploded schematic diagram of the pipe rack structure with adjustable spray weight of the present invention.

[0037] Figure 5 It is another exploded schematic diagram of the pipe rack structure with adjustable spray weight of the present invention.

[0038] Figure 6 It is a schematic structural diagram of the spray device of the present invention in a liquid-loading state.

[0039] Figure 7 It is a schematic structural diagram of the spray device of the present invention in a spraying state.

[0040] Figure 8 It is a schematic diagram of the actuator locking tube support structure of the present invention.

[0041] Fig. 9 It is a schematic diagram of the actuating member of the present invention after unlocking the pipe rack structure.

[0042] Fig.10 It is an exploded schematic diagram of the cooperation relationship between the actuating member and the main rotating body of the present invention.

[0043] Fig.11 It is a schematic diagram of the connection structure between the pipe rack structure and the main rotating body of the present invention.

[0044] Fig.12 It is an exploded schematic diagram of the matching relationship between the pipe rack structure and the upper shell part of the present invention.

[0045] In the figure: 1. frame; 11. through hole; 12. spiral part; 13. sleeve part; 14. convex ring part; 15. side hole; 16. slide groove structure; 2. infusion tube; 21. groove; 22. one-way structure; 3. matching piece; 4. locking piece; 5. upper shell part; 51. through cavity part; 52. guide part; 6. container part; 7. nozzle part; 71. fluid channel; 72. flow guide member; 73. atomization unit; 8. main rotor; 81. concave-convex structure; 82. matching piece; 821. second deflection surface; 9. actuator; 91. reset piece; 911. first deflection surface; 10. spring. DETAILED DESCRIPTION

[0046] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0047] The words expressing positions and directions described in the present invention are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of the present invention.

[0048] The spray weight of the present invention refers to the weight of atomized particles that can be produced by the spray device per unit time, which is an important indicator for measuring the performance of the spray device. The spray weight of the spray device depends on the pipe rack structure, which can be determined by the movement stroke of the upper end of the infusion pipe 2. Figures 6 to 12 shown.

[0049] As can be seen from the figure, the spray device generally includes an upper shell portion 5, a nozzle portion 7, a main rotating body 8, a pipe frame structure, an actuator 9 and a spring 10, etc.

[0050] The upper shell portion 5 is generally of a convex cylindrical structure, with a through cavity portion 51 disposed at the center thereof, which is adapted to the nozzle portion in shape and size to achieve a stable holding effect. In addition, a guide portion 52 is disposed on the outer periphery of the through cavity portion 51, which is arranged spirally downward and whose position corresponds to the spiral portion 12 on the inner side of the frame body 1 (see FIG. Fig.12 ), which is used to guide the pipe rack structure to rotate downward.

[0051] The nozzle part 7 is arranged in the through cavity part 51, and the two can be fixed by plugging, which is convenient for assembly and disassembly. In addition, the nozzle part 7 is provided with a fluid channel 71, which is arranged in a flow guide member 72 connected to the through cavity part 51, and the top of the channel is used to connect the atomization unit 73, and the bottom is used to connect the infusion tube 2.

[0052] The main rotor 8 is a cylindrical structure, the top of which is inserted into the upper shell part 5 and rotatably connected thereto. For example, the main rotor 8 and the upper shell part 5 can be connected via a concave-convex structure 81 and can rotate relative to each other.

[0053] The pipe rack structure is arranged in the main rotating body 8 and can move up and down with the rotation of the main rotating body 8. Specifically, the frame 1 of the pipe rack structure and the main rotating body 8 can be connected by a slide groove structure 16 (see Fig.11 ), so as to move up and down along the axial direction of the device to achieve the functions of liquid application and injection.

[0054] The actuator 9 is an annular structure, which is arranged above the main rotating body 8. The actuator 9 is configured to lock the pipe support structure after the liquid filling state is completed, and unlock the pipe support structure before the spraying state. Figure 8 As shown, when the actuator 9 and the main rotating body 8 intersect eccentrically, the actuator 9 presses the locking pipe frame structure and puts it in a liquid-loading state. Fig. 9 As shown, when the actuating member 9 is translated to be coaxial and collinear with the main rotating body 8, the actuating member 9 releases the pressure on the pipe frame structure, and the pipe frame structure can move upward under the action of an external force (such as a compressed spring 10), thereby entering a spraying state.

[0055] In the above two states, the spraying state can be switched to the liquid filling state by rotating the main rotor 8, and the liquid filling state can be switched to the spraying state by pressing the actuator 9. Fig.10 As shown, a reset member 91 is provided on the side of the actuator 9 away from the pressing, and a first deflection surface 911 is provided on the reset member 91. Correspondingly, a matching member 82 is symmetrically provided on both sides of the upper end of the main rotating body 8, and a second deflection surface 821 is provided on the matching member 82. Every time the main rotating body 8 rotates 180°, the second deflection surface 821 on the matching member 82 can contact the first deflection surface 911 on the reset member 91 once, and drive the actuator 9 to translate and intersect the main rotating body 8 eccentrically, thereby pressing and fixing the downwardly moved pipe frame structure, and the device transitions to the upper liquid state. When the actuator 9 is pressed and translated to be coaxial and collinear with the main rotating body 8, the actuator 9 releases the pressure on the pipe frame structure, and the spring 10 (which is in a compressed state at this time) located below the pipe frame structure can quickly push it upward, and the device switches to the spraying state.

[0056] The spray device is used as follows: S1, install the container part 6 on the pipe rack structure, and insert the lower end of the infusion tube 2 into the container part 6 to contact the liquid; S2, pressing the actuator 9, causing it to translate to be coaxial and collinear with the main rotating body 8 to unlock the tube frame structure, and the spring 10 pushes the tube frame structure upward, and the infusion tube 2 moves toward the nozzle part 7 and compresses the space of the fluid channel 71, so that the liquid in the channel is pressurized and sprayed outward in the form of mist; S3. Rotate the main swivel 8, and the frame 1 of the tube rack structure rotates synchronously. Relying on the guiding cooperation after the spiral portion 12 contacts the guide portion 52, the tube rack structure moves down and resets and compresses the spring 10. During this period, the infusion tube 2 moves away from the nozzle portion 7 and evacuates the fluid channel 71. The liquid in the container portion 6 is pumped into the fluid channel 71. At the same time, the matching piece 82 on the main swivel 8 rotates to contact the reset piece 91 of the actuator 9, and drives the actuator 9 to translate and intersect the main swivel 8 eccentrically again to lock the tube rack structure.

[0057] S4, repeating steps S2 and S3 to achieve a continuous spraying function.

[0058] Since the length of the existing integrated pipe rack structure is not adjustable, the spray weight is almost constant, which is roughly in the range of 12.5 mg to 13.5 mg, which cannot meet the use requirements of different environments. Therefore, the present invention discloses a pipe rack structure with adjustable spray weight, see Figure 1 to Figure 5 As shown, the pipe rack structure adopts a split connection design, including a rack body 1 and an infusion tube 2, and the relative positions of the two are adjustable.

[0059] Specifically, the frame 1 is generally sleeve-shaped, and preferably has a through hole 11 at the center thereof, which has a certain thickness to ensure the stability of the connection. Accordingly, a matching piece 3 is fixed to the infusion tube 2, which is located in the middle of the infusion tube 2 and corresponds to the through hole 11.

[0060] During assembly, the matching piece 3 is arranged in the through hole 11. By adjusting the position of the matching piece 3 in the through hole 11, the distance between the upper end of the infusion tube 2 and the upper end of the frame 1 can be changed, thereby obtaining a tube rack structure with different spray weight control. Specifically, when the upper end of the infusion tube 2 moves upward relative to the upper end of the frame 1, the movement stroke of the infusion tube 2 in the fluid channel 71 decreases, and the corresponding spray weight also decreases; when the upper end of the infusion tube 2 moves downward relative to the upper end of the frame 1, the movement stroke of the infusion tube 2 in the fluid channel 71 increases, and the corresponding spray weight also increases.

[0061] For example, Figure 3 As shown, the matching piece 3 can be threadedly connected with the through hole 11. In this example, the inner side of the through hole 11 is provided with an internal thread, and the outer periphery of the matching piece 3 is provided with an external thread. During assembly, the matching piece 3 is rotated and screwed into the through hole 11 to realize the connection between the frame 1 and the infusion tube 2, and by adjusting the screwing depth of the matching piece 3, the distance from the upper end of the infusion tube 2 to the upper end of the frame 1 can be changed, thereby changing the spray weight of the pipe rack structure, which has the advantages of simple operation and convenient adjustment.

[0062] Or, if Figure 4As shown, the matching piece 3 can also be transitionally matched with the through hole 11. In this example, the matching piece 3 and the frame 1 are combined together by friction. By pressing to adjust the insertion depth of the matching piece 3, the distance from the upper end of the infusion tube 2 to the upper end of the frame 1 can also be changed to achieve the purpose of adjusting the spray weight. However, it should be noted that the above friction should be greater than the pump pressure of the infusion tube 2 on the liquid to ensure the stability of the overall pipe rack structure.

[0063] For example, see Figure 5 As shown, at least one locking member 4 is provided in the side wall of the frame body 1. In this example, a side hole 15 connected to the through hole 11 is provided on the side wall of the frame body 1, and the aperture of the side hole 15 matches the locking member 4. During assembly, the matching member 3 is inserted into the through hole 11, and then the locking member 4 is screwed until the locking member 4 presses the matching member 3 into the through hole 11. When the spray weight of the pipe rack structure needs to be adjusted, the locking member 4 is loosened and the insertion depth of the matching member 3 is adjusted, and the locking member 4 is tightened again. Note that the above-mentioned locking member 4 needs to be sunk into the side hole 15 or at least kept flush with the surface of the frame body 1 in the tightened state to avoid interference with the movement of the pipe rack structure.

[0064] It should be understood that the position adjustment methods between the frame 1 and the infusion tube 2 include not only the above three methods, but other methods that can achieve the above functions are also feasible. In the present application, the adjustment spacing from the upper end of the infusion tube 2 to the upper end of the frame 1 is approximately ±10mm. This range corresponds to the variable movement stroke of the tube rack structure. The tube rack structure can adjust the spray weight within a larger range. For example, it can be adjusted within the spray weight range of 11.5 mg ~14.5 mg, so as to meet different usage environments and have better versatility. Preferably, the adjustment spacing from the upper end of the infusion tube 2 to the upper end of the frame 1 can be ±6mm, ±8mm, etc.

[0065] See also Figure 2a and Figure 2b As shown, in some embodiments, the thickness of the through hole 11 is greater than the thickness of the matching member 3. This allows the frame 1 to fully contact the matching member 3 to ensure the fixing effect between the two; and the thicker through hole 11 also provides sufficient space for the matching member 3 to facilitate position adjustment.

[0066] In summary, the pipe rack structure of the present application is designed by separating the frame 1 and the infusion tube 2 so that the relative position of the frame 1 and the infusion tube 2 is adjustable, so that the spray weight can be flexibly changed to meet different usage environments. For manufacturers, only one set of molds is needed to produce pipe rack structures with different spray weights, which effectively reduces production costs, and the injection molding precision of the split molding is higher and the product yield is better. For users, the spray weight can be adjusted to correspond to different usage environments, which is convenient to use and reduces procurement costs.

[0067] See also Figure 6 and Figure 7As shown, the bottom of the frame 1 is provided with a sleeve portion 13, which is used to connect the container portion 6 of the spray device. The container portion 6 is usually filled with a specific liquid medicine or a non-therapeutic liquid such as saline, perfume, etc. After being installed in the sleeve portion 13, the liquid can be supplied to the nozzle portion of the spray device through the infusion tube 2. Preferably, the sleeve portion 13 can be connected to the container portion 6 by a snap-fitting method, which is convenient for disassembly and replacement.

[0068] In addition, a spiral portion 12 is provided on the inner side of the frame 1, which is used to cooperate with the upper shell part 5 of the rotary spray device. Under the action of the guide part 52, it can control the overall rotation and downward movement of the tube rack structure, causing the infusion tube 2 to move downward, reset and switch to the liquid supply state.

[0069] Furthermore, a convex ring portion 14 is also provided in the frame body 1, and the convex ring portion 14 is arranged around the upper end of the through hole 11, and is used to cooperate with the upper shell portion 5 of the spray device. It can interfere with the through cavity portion 51, thereby limiting the upward movement of the tube rack assembly (i.e., the infusion tube 2), so that the spray weight of each spray is kept consistent, thereby improving the spray quality and effect.

[0070] Preferably, in the above-mentioned pipe frame structure, the sleeve portion 13 , the spiral portion 12 and the convex ring portion 14 can be integrally injection-molded with the frame body 1 .

[0071] See also Figure 2a and Figure 2b As shown, a groove 21 is provided on the outer periphery of the infusion tube 2, and the matching piece 3 is partially embedded in the groove 21, so as to improve the bonding strength between the infusion tube 2 and the matching piece 3 and prevent the infusion tube 2 from axial movement and affecting the spray effect.

[0072] In addition, a one-way structure 22 is provided at the inner top of the infusion tube 2, which may be a one-way valve formed by the inner cavity of the tube and the valve core, for preventing the liquid from flowing back when the infusion tube 2 pumps the liquid, thereby ensuring the reliability of the spray.

[0073] The present invention also discloses a spray device, which may be a nasal spray device, for example. The device includes the above-mentioned pipe rack structure with adjustable spray weight, so that the spray device has the function of adjusting the spray weight, can meet the needs of different usage scenarios, and is easy to use.

[0074] In this spray device, although the distance from the spiral portion 12 to the guide portion 52 is fixed, if the spray weight needs to be adjusted, without greatly changing the structure of the spray device, it is only necessary to simply adjust the relative position of the infusion tube 2 and the frame 1, so that the moving stroke of the infusion tube 2 in the fluid channel 71 changes, and the spray weight itself can be changed. This has the advantages of simple operation and low modification cost.

[0075] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and modify the above embodiments within the scope of the invention without departing from the principles and purpose of the present invention. All such changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A pipe rack structure with adjustable spray weight, characterized in that: include: Frame (1); An infusion tube (2), wherein a matching piece (3) is fixedly connected to the infusion tube (2); The matching component (3) is movably assembled in the frame (1), so that the distance between the upper end of the infusion tube (2) and the upper end of the frame (1) is adjustable.

2. The pipe rack structure with adjustable spray weight according to claim 1 is characterized in that: A through hole (11) is provided in the frame body (1), and the matching piece (3) is threadedly connected to the through hole (11).

3. The pipe rack structure with adjustable spray weight according to claim 1 is characterized in that: A through hole (11) is provided in the frame body (1), and the matching piece (3) is transitionally matched with the through hole (11).

4. The pipe rack structure with adjustable spray weight according to claim 1 is characterized in that: A through hole (11) is provided in the frame body (1), and at least one locking member (4) is provided in its side wall for tightening the matching member (3) in the through hole (11).

5. The pipe rack structure with adjustable spray weight according to claim 1 is characterized in that: The thickness dimension of the through hole (11) is greater than the thickness dimension of the matching piece (3).

6. The pipe rack structure with adjustable spray weight according to claim 1, characterized in that: The adjustment spacing from the upper end of the infusion tube to the upper end of the frame is ±10mm.

7. The pipe rack structure with adjustable spray weight according to claim 1, characterized in that: A spiral portion (12) is provided on the inner side of the frame (1), and the spiral portion (12) is used to cooperate with the upper shell portion (5) of the rotary spray device, thereby driving the infusion tube (2) to move downward and reset.

8. The pipe rack structure with adjustable spray weight according to claim 1, characterized in that: A sleeve portion (13) is provided at the bottom of the frame (1), and the sleeve portion (13) is used to connect to a container portion (6) of a spray device.

9. The pipe rack structure with adjustable spray weight according to claim 1, characterized in that: A convex ring portion (14) is also provided in the frame body (1), and the convex ring portion (14) is used to cooperate with the upper shell portion (5) of the spray device, thereby limiting the upward movement of the infusion tube (2).

10. The pipe rack structure with adjustable spray weight according to claim 1, characterized in that: The outer circumference of the infusion tube (2) is provided with a groove (21), and the matching piece (3) is partially embedded in the groove (21).

11. A spray device, characterized in that: It comprises a pipe rack structure with adjustable spray weight as described in any one of claims 1-10.

12. The spray device according to claim 12, characterized in that Also includes: An upper shell portion (5), wherein a through cavity portion (51) is provided at the center of the upper shell portion, and a guide portion (52) is provided at the periphery of the through cavity portion; A nozzle portion (7) is arranged in the through cavity portion (51), and the nozzle portion (7) is provided with a fluid channel (71); A main rotating body (8) rotatably connected to the upper shell portion (5), wherein the pipe frame structure is arranged in the main rotating body (8) and can move up and down with the rotation of the main rotating body (8); an actuating member (9) disposed above the main rotating body (8), the actuating member (9) being configured to lock the pipe support structure after the liquid loading state is completed, and to unlock the pipe support structure before the spraying state; The spring (10) is arranged below the pipe rack structure and is in a compressed state when the pipe rack structure is locked.

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