A multifunctional massage belt
By designing a multifunctional massage belt that combines a vibration motor, moxibustion therapy lamp, and spray component, the problems of existing massage belts being unable to adjust position and lacking functionality have been solved, enabling multifunctional treatment of the waist and abdomen and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 광둥 마오순 뉴 머티리얼 테크놀로지 컴퍼니 리미티드
- Filing Date
- 2022-12-30
- Publication Date
- 2026-05-12
AI Technical Summary
Existing massage belts cannot be adjusted according to the massage location, have poor functionality, and lack the effect of medicated compresses.
A multifunctional massage belt has been designed, comprising a silicone sleeve, a strap, a massage component, a central control box, an adjustment component, and a spray component. It can perform massage, moxibustion treatment, and disinfectant spraying on the user's abdomen or waist. The multifunctional treatment is achieved through the combined use of a vibration motor, a moxibustion therapy lamp, and a spray component.
It enables flexible adjustment of the massage position, enhances the functionality of the massage belt, and provides massage, moxibustion therapy and disinfection functions, thereby improving user comfort and experience.
Smart Images

Figure CN115813738B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of massage belt technology, and more specifically, to a multifunctional massage belt. Background Technology
[0002] Lower back pain, also known as "lumbosacral pain," is a traditional Chinese medicine (TCM) syndrome characterized by pain in the lumbar spine or paravertebral region caused by poor blood and qi circulation or insufficient nourishment in the lower back due to external pathogens, internal injuries, or sprains. Its pathogenesis is often rooted in kidney deficiency, with external pathogenic factors and falls / sprains as secondary manifestations. The lower back is considered the residence of the kidneys, nourished by their essence. With the development of my country's economy and society, people's work and lifestyles have undergone tremendous changes. Computers, the internet, and television have become indispensable parts of our lives and work. When watching television, many people like to lean against the sofa, slouch on the armrest, lean against the headboard, or lie on the sofa or bed for extended periods. When using computers for internet access or work, many people forget the time, sitting for long periods or with poor posture. These poor postures and habits, coupled with busy work schedules and the inability to utilize rest time for appropriate movement to adjust lumbar posture and relieve fatigue, eventually lead to strain on the lumbar muscles and ligaments, resulting in symptoms such as lower back pain. Therefore, an increasing number of massage belts have appeared on the market for users to use for treatment.
[0003] However, some existing massage belts cannot be adjusted to different massage areas, resulting in limited usage and restricting their application to only the abdomen or lower back, thus limiting their practicality. Furthermore, existing massage belts generally only massage the body and do not simultaneously provide the effect of applying medication to specific areas, further reducing their functionality. Therefore, inventing a multifunctional massage belt to address these issues has become a pressing problem for those skilled in the art. Summary of the Invention
[0004] To overcome the above shortcomings, the present invention provides a multifunctional massage belt, which aims to improve the problems of existing massage belts that cannot be adjusted in time according to the massaged area and have poor functionality.
[0005] This invention is implemented as follows:
[0006] This invention provides a multifunctional massage belt, including a silicone sleeve, with straps fixedly connected to the ends of the silicone sleeve, and Velcro fasteners fixedly connected to the inner sidewalls of both straps. It also includes:
[0007] A massage component, disposed within the inner cavity of a silicone sleeve, is used to massage the user's abdomen or waist.
[0008] A central control box, wherein the central control box is disposed between two silicone sleeves;
[0009] An adjustment component is located in the middle of the inner cavity of the central control box. The adjustment component is used to perform moxibustion treatment on the user's abdomen.
[0010] The spraying assembly is located on the front and rear sides of the inner cavity of the central control box. The spraying assembly is used to spray disinfectant on the user's abdomen.
[0011] Preferably, the massage component includes a mounting plate fixedly connected to the bottom surface of the inner cavity of the silicone sleeve and a motor compartment fixedly connected to the outer surface of the inner cavity of the silicone sleeve by screws and fasteners. A battery is fixedly installed on the upper surface of the mounting plate, and a control button is fixedly connected to the upper surface of the silicone sleeve.
[0012] By adopting the above technical solution, the vibration motor will drive the functional head to vibrate when it vibrates, thus realizing the function of massaging the user's abdomen or waist.
[0013] Preferably, a vibration motor is fixedly installed in the inner cavity of the motor compartment, a counterweight is fixedly connected to the output shaft end of the vibration motor, and a functional head is fixedly installed on the lower end face of the silicone sleeve by screw fasteners. The functional head is made of rubber.
[0014] Preferably, the vibration motor and control button are electrically connected to the battery, and the motor compartment and the functional head form an independent vibrating body. Each independent vibrating body has three sets of vibrating heads inside the silicone sleeve on each side. When the vibration motor vibrates, it will drive the functional head to vibrate together.
[0015] By adopting the above technical solution, the range of vibration is increased, thereby improving user comfort.
[0016] Preferably, the adjustment component includes a connecting band fixedly connected to the upper end face of the silicone sleeves on both sides, and a threaded sleeve rotatably connected to the middle of the inner cavity of the central control box. The inner cavity of the threaded sleeve is threadedly connected to an adjustment column, and the lower end face of the adjustment column is fixedly connected to a moxibustion therapy lamp. The moxibustion therapy lamp is electrically connected to the battery control button.
[0017] By adopting the above technical solution, the device can be adjusted according to the different parts of the user's body being treated.
[0018] Preferably, an adjusting gear is fixedly connected to the middle of the outer side wall of the threaded sleeve, and an adjusting rack is fixedly connected to the inner side wall of the connecting belt. The adjusting rack is meshed with the adjusting gear, and the adjusting racks on the left and right sides intersect with the connecting belt.
[0019] Preferably, a top plate is rotatably connected to the upper end face of the adjusting column, and limit rods are fixedly connected to the left and right sides of the upper end face of the central control box. The limit rods are connected through the top plate, and a torsion spring is fixedly connected to the upper end face of the adjusting gear. The other end of the torsion spring is fixedly connected to the top surface of the inner cavity of the central control box.
[0020] By adopting the above technical solution, the function of automatically storing the massage components on both sides of the central control box is realized.
[0021] Preferably, the spraying assembly includes a pressurization box fixedly connected to the front and rear side walls of the inner cavity of the central control box. A piston plate is slidably connected to the inner cavity of the pressurization box near the adjusting gear. The piston plate is made of iron, and the front half of the teeth of the adjusting gear is made of magnet. When the front half of the teeth of the adjusting gear is opposite to the piston plate, there is a strong magnetism between the front half of the teeth of the adjusting gear and the piston plate.
[0022] Preferably, a return spring is fixedly connected to the end face of the piston plate, and the other end of the return spring is fixedly connected to the inner cavity side wall of the pressurization box.
[0023] Preferably, an atomizing rotary nozzle is fixedly connected to the lower end face of the pressurizing box, and the atomizing rotary nozzle is connected through the central control box. The atomizing rotary nozzle is connected to the pressurizing box, and a one-way water valve with an outlet to the inner cavity of the atomizing rotary nozzle is provided at the connection between the pressurizing box and the atomizing rotary nozzle. A replenishment tank is fixedly connected to the upper end face of the pressurizing box, and the replenishment tank is connected to the pressurizing box through a pipe. A one-way water valve with an outlet to the inner cavity of the pressurizing box is provided at the connection between the pressurizing box and the pipe.
[0024] By adopting the above technical solution, the function of automatically spraying alcohol onto the user's abdominal skin has been realized.
[0025] The beneficial effects of this invention are:
[0026] 1. With the straps on both sides, the user can wrap the entire device around their body according to the desired massage position. Then, by controlling the button, the vibration motor is started to rotate its output shaft. At this time, the counterweight fixed to its output shaft will rotate eccentrically, causing the entire vibration unit to vibrate. Thus, the functional head will be able to shake up and down on the user's skin, thereby enabling the entire device to massage the user's abdomen or waist.
[0027] 2. With the cooperation of the spraying and adjusting components, the piston plate can slide back and forth in the inner cavity of the pressurizing box, continuously pressurizing the alcohol liquid in the inner cavity on the right side of the pressurizing box, and spraying the atomized alcohol liquid through the atomizing rotating nozzle to achieve the function of disinfecting the user's abdominal skin before physiotherapy. At the same time, the alcohol liquid in the replenishment tank can also enter the pressurizing box through the tube to replenish the alcohol. When the entire device is used up, under the torsion of the torsion spring, the torsion spring is reset, and the spraying component will operate again to clean the user's abdominal skin again, avoiding the presence of drug residue on the user's abdominal skin after moxibustion physiotherapy, and ensuring the user's experience. Attached Figure Description
[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0029] Figure 1 This is a frontal view of the overall structure of a multifunctional massage belt provided by an embodiment of the present invention;
[0030] Figure 2 This is a schematic diagram showing the structure of the massage component of a multifunctional massage belt provided in an embodiment of the present invention;
[0031] Figure 3 This is a cross-sectional view of the massage component of a multifunctional massage belt provided in an embodiment of the present invention;
[0032] Figure 4 This is a schematic diagram of the internal structure of a massage component of a multifunctional massage belt provided by an embodiment of the present invention;
[0033] Figure 5 This is a schematic diagram showing the structure of the central control box of a multifunctional massage belt provided in an embodiment of the present invention;
[0034] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the central control box of a multifunctional massage belt provided in an embodiment of the present invention;
[0035] Figure 7 This is a cross-sectional view of the filling box of a multifunctional massage belt provided by an embodiment of the present invention;
[0036] Figure 8 This is a schematic diagram illustrating the adjusting gear structure of a multifunctional massage belt according to an embodiment of the present invention;
[0037] Figure 9This is a schematic diagram illustrating different ways of using a multifunctional massage belt provided by an embodiment of the present invention.
[0038] In the diagram: 1. Silicone sleeve; 2. Strap; 3. Massage component; 31. Mounting plate; 32. Motor compartment; 33. Battery; 34. Control button; 35. Vibration motor; 36. Counterweight; 37. Functional head; 4. Central control box; 5. Adjustment component; 51. Connecting strap; 52. Threaded sleeve; 53. Adjustment column; 54. Moxibustion therapy lamp; 55. Adjustment gear; 56. Adjustment rack; 57. Top plate; 58. Limiting rod; 59. Torsion spring; 6. Spraying component; 61. Pressurization box; 62. Piston plate; 63. Return spring; 64. Atomizing rotating nozzle; 65. Replenishment tank. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0040] Example
[0041] Reference Figure 1-9 A multifunctional massage belt includes a silicone sleeve 1, with straps 2 fixedly connected to the ends of the silicone sleeve 1. Velcro fasteners are fixedly connected to the inner walls of both straps 2. The belt also includes:
[0042] Massage component 3 is disposed in the inner cavity of silicone sleeve 1 and is used to massage the user's abdomen or waist.
[0043] Central control box 4, which is positioned between two silicone sleeves 1;
[0044] Adjustment component 5 is located in the middle of the inner cavity of the central control box 4. Adjustment component 5 is used to perform moxibustion treatment on the user's abdomen.
[0045] The spraying component 6 is located on the front and rear sides of the inner cavity of the central control box 4. The spraying component 6 is used to spray disinfectant on the user's abdomen.
[0046] Reference Figure 1-4Furthermore, the massage component 3 includes a mounting plate 31 fixedly connected to the bottom surface of the inner cavity of the silicone sleeve 1 and a motor compartment 32 fixedly connected to the outer side of the inner cavity of the silicone sleeve 1 by screws and fasteners. A battery 33 is fixedly installed on the upper end surface of the mounting plate 31, and a control button 34 is fixedly connected to the upper end surface of the silicone sleeve 1. A vibration motor 35 is fixedly installed in the inner cavity of the motor compartment 32, and a counterweight 36 is fixedly connected to the output shaft end of the vibration motor 35. A functional head 37 is fixedly installed on the lower end surface of the silicone sleeve 1 by screws and fasteners. The functional head 37 is made of rubber. The vibration motor 35 and the control button 34 are electrically connected to the battery 33. The motor compartment 32 and the functional head 37 form an independent vibrating body. Three sets of independent vibrating bodies are provided in the silicone sleeve 1 on each side. When the vibration motor 35 vibrates, it will drive the functional head 37 to vibrate together.
[0047] It should be noted that: with the straps 2 on both sides, after the user wraps the entire device around the body according to the desired massage position, the user can start the vibration motor 35 by controlling the button 34 to make its output shaft rotate. At this time, the counterweight block 36 fixedly connected to its output shaft will rotate eccentrically, causing the entire vibration unit to vibrate. Thus, the functional head 37 will be able to shake up and down on the user's skin, thereby enabling the entire device to perform a massage function on the user's abdomen or waist.
[0048] Reference Figure 1-6 Furthermore, the adjustment assembly 5 includes a connecting band 51 fixedly connected to the upper end face of the silicone sleeves 1 on both sides, and a threaded sleeve 52 rotatably connected to the middle of the inner cavity of the central control box 4. The inner cavity of the threaded sleeve 52 is threadedly connected to an adjustment column 53. The lower end face of the adjustment column 53 is fixedly connected to a moxibustion therapy lamp 54. The moxibustion therapy lamp 54 is electrically connected to the control button 34 of the battery 33. The middle of the outer wall of the threaded sleeve 52 is fixedly connected to an adjustment gear 55. The inner wall of the connecting band 51 is fixedly connected to an adjustment rack 56. The adjustment rack 56 is meshed with the adjustment gear 55. The adjustment racks 56 on the left and right sides intersect with the connecting band 51. The upper end face of the adjustment column 53 is rotatably connected to a top plate 57. The upper end face of the central control box 4 is fixedly connected to the left and right sides with limit rods 58. The limit rods 58 are connected to the top plate 57. The upper end face of the adjustment gear 55 is fixedly connected to a torsion spring 59. The other end of the torsion spring 59 is fixedly connected to the top surface of the inner cavity of the central control box 4.
[0049] It should be noted that when the user massages both sides of the waist, such as Figure 9As shown, in order to ensure that the distance between the moxibustion therapy lamp 54 and the user's abdominal skin is appropriate, it is necessary to adjust the moxibustion therapy lamp 54 to a suitable position at the central control box 4. Since it is applied to both sides of the user's waist, the connecting straps 51 on both sides will be pulled outwards from the central control box 4 simultaneously. Under the limiting action of the adjusting rack 56, the adjusting gear 55 in the middle will drive the threaded sleeve 52 to rotate. Since the limiting rod 58 is connected to the top plate 57, and the top plate 57 is fixedly connected to the adjusting column 53, the adjusting column 53 will move towards the lower part of the inner cavity of the central control box 4, getting closer to the user's abdominal skin, so as to ensure the quality and effect of the moxibustion therapy lamp 54 in treating the user's abdomen (at this time, the torsion spring 59 is in a compressed state).
[0050] Reference Figure 1-9 Furthermore, the spraying assembly 6 includes a pressurization box 61 fixedly connected to the front and rear side walls of the inner cavity of the central control box 4. A piston plate 62 is slidably connected to the inner cavity of the pressurization box 61 near the adjusting gear 55. The piston plate 62 is made of iron. The front half of the teeth of the adjusting gear 55 is made of magnet. When the front half of the teeth of the adjusting gear 55 is opposite to the piston plate 62, there is a strong magnetism between the front half of the teeth of the adjusting gear 55 and the piston plate 62. A return spring 63 is fixedly connected to the end face of the piston plate 62, and the other end of the return spring 63 is fixedly connected to... On the inner wall of the pressurization box 61, a rotating atomizing nozzle 64 is fixedly connected to the lower end face of the pressurization box 61, and the rotating atomizing nozzle 64 is connected through the central control box 4. The rotating atomizing nozzle 64 is connected to the pressurization box 61, and a one-way water valve with an outlet to the inner cavity of the rotating atomizing nozzle 64 is provided at the connection between the pressurization box 61 and the rotating atomizing nozzle 64. A replenishment tank 65 is fixedly connected to the upper end face of the pressurization box 61, and the replenishment tank 65 is connected to the pressurization box 61 through a pipe. A one-way water valve with an outlet to the inner cavity of the pressurization box 61 is provided at the connection between the pressurization box 61 and the pipe.
[0051] It should be noted that while the adjusting gear 55 is rotating, under the magnetic action of the front half of the teeth of the adjusting gear 55 and the constraint of the return spring 63, the piston plate 62 can slide back and forth in the inner cavity of the pressurizing box 61, continuously pressurizing the alcohol liquid in the inner cavity on the right side of the pressurizing box 61, and spraying the atomized alcohol liquid through the atomizing rotating nozzle 64 to achieve the function of disinfecting the user's abdominal skin before physiotherapy. After the entire device is used, under the torque of the torsion spring 59, the torsion spring 59 is reset, and the spraying component 6 will operate again, which can clean the user's abdominal skin again, avoiding the presence of drug residue on the surface of the user's abdominal skin after the moxibustion physiotherapy lamp 54 treatment, thus ensuring the user's experience.
[0052] The working principle of this multi-functional massage belt:
[0053] With the straps 2 on both sides, the user can wrap the entire device around their body according to the desired massage position. Then, the user can start the vibration motor 35 by controlling the button 34 to make its output shaft rotate. At this time, the counterweight 36 fixedly connected to its output shaft will rotate eccentrically, causing the entire vibration unit to vibrate. Thus, the functional head 37 will be able to shake up and down on the user's skin, thereby enabling the entire device to massage the user's abdomen or waist.
[0054] When the user massages both sides of the waist, such as Figure 9 As shown, in order to ensure that the distance between the moxibustion therapy lamp 54 and the user's abdominal skin is appropriate, it is necessary to adjust the moxibustion therapy lamp 54 to a suitable position at the central control box 4. Since it is for the user's waist on both sides, the connecting straps 51 on both sides will be pulled outwards from the central control box 4 simultaneously. Under the limiting action of the adjusting rack 56, the adjusting gear 55 in the middle will drive the threaded sleeve 52 to rotate. Since the limiting rod 58 is connected to the top plate 57, and the top plate 57 is fixedly connected to the adjusting column 53, the adjusting column 53 will move towards the lower part of the inner cavity of the central control box 4, getting closer to the user's abdominal skin, so as to ensure the quality and effect of the moxibustion therapy lamp 54 on the user's abdomen (at this time, the torsion spring 59 is in a compressed state).
[0055] At the same time, as the adjusting gear 55 rotates, when the front half of the teeth of the adjusting gear 55 is opposed to the piston plate 62, there is a strong magnetism between the front half of the teeth of the adjusting gear 55 and the piston plate 62. Thus, when the adjusting gear 55 rotates, under the magnetic action of the front half of the teeth of the adjusting gear 55 and the constraint of the return spring 63, the piston plate 62 will be able to slide back and forth in the inner cavity of the pressurizing box 61, continuously pressurizing the alcohol liquid in the right inner cavity of the pressurizing box 61, and spraying the mist-like alcohol liquid through the atomizing rotating nozzle 64 to achieve the disinfection function of the user's abdominal skin before physiotherapy. At the same time, the alcohol liquid in the replenishment tank 65 can also enter the pressurizing box 61 through the tube to replenish the alcohol.
[0056] After the entire device is used up, the torsion spring 59 is reset under the torque of the torsion spring 59, and the spraying component 6 will operate again, which can clean the user's abdominal skin again, avoiding the presence of drug residue on the user's abdominal skin after the moxibustion therapy lamp 54, thus ensuring the user's experience.
[0057] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.
[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.
Claims
1. A multifunctional massage belt, comprising a silicone sleeve (1), wherein a strap (2) is fixedly connected to the end of the silicone sleeve (1), and Velcro is fixedly connected to the inner sidewalls of both straps (2), characterized in that, Also includes: Massage component (3), which is disposed in the inner cavity of silicone sleeve (1) and is used to massage the user's abdomen or waist; A central control box (4) is disposed between two silicone sleeves (1); Adjustment component (5), which is located in the middle of the inner cavity of the central control box (4), is used to perform moxibustion treatment on the user's abdomen; The spraying assembly (6) is located on the front and rear sides of the inner cavity of the central control box (4). The spraying assembly (6) is used to spray disinfectant on the user's abdomen. The massage component (3) includes a mounting plate (31) fixedly connected to the bottom surface of the inner cavity of the silicone sleeve (1) and a motor compartment (32) fixedly connected to the outer side of the inner cavity of the silicone sleeve (1) by screws and fasteners. A battery (33) is fixedly installed on the upper surface of the mounting plate (31), and a control button (34) is fixedly connected to the upper surface of the silicone sleeve (1). The adjustment component (5) includes a connecting band (51) fixedly connected to the upper end face of the silicone sleeves (1) on both sides, and a threaded sleeve (52) rotatably connected to the middle of the inner cavity of the central control box (4). The inner cavity of the threaded sleeve (52) is threadedly connected to an adjustment column (53). The lower end face of the adjustment column (53) is fixedly connected to a moxibustion therapy lamp (54). The moxibustion therapy lamp (54) is electrically connected to the battery (33) and the control button (34). An adjusting gear (55) is fixedly connected to the middle of the outer side wall of the threaded sleeve (52), and an adjusting rack (56) is fixedly connected to the inner side wall of the connecting band (51). The adjusting rack (56) meshes with the adjusting gear (55), and the adjusting rack (56) on the left and right sides intersects with the connecting band (51). The upper end face of the adjusting column (53) is rotatably connected to the top plate (57). The upper end face of the central control box (4) is fixedly connected to the left and right sides of the limiting rod (58). The limiting rod (58) is connected through the top plate (57). The upper end face of the adjusting gear (55) is fixedly connected to the torsion spring (59). The other end of the torsion spring (59) is fixedly connected to the top surface of the inner cavity of the central control box (4).
2. The multifunctional massage belt according to claim 1, characterized in that, The inner cavity of the motor compartment (32) is fixedly installed with a vibration motor (35), and the output shaft end of the vibration motor (35) is fixedly connected with a counterweight (36). The lower end face of the silicone sleeve (1) is fixedly installed with a functional head (37) by screw fasteners. The functional head (37) is made of rubber.
3. A multifunctional massage belt according to claim 2, characterized in that, The vibration motor (35) and control button (34) are electrically connected to the battery (33). The motor compartment (32) and the functional head (37) form an independent vibrating body. The independent vibrating body has three sets in the silicone sleeve (1) on each side. When the vibration motor (35) vibrates, it will drive the functional head (37) to vibrate together.
4. A multifunctional massage belt according to claim 1, characterized in that, The spraying assembly (6) includes a pressurization box (61) fixedly connected to the front and rear side walls of the inner cavity of the central control box (4). A piston plate (62) is slidably connected to the inner cavity of the pressurization box (61) near the adjusting gear (55). The piston plate (62) is made of iron. The front half of the teeth of the adjusting gear (55) is made of magnet. When the front half of the teeth of the adjusting gear (55) is opposite to the piston plate (62), there is a strong magnetism between the front half of the teeth of the adjusting gear (55) and the piston plate (62).
5. A multifunctional massage belt according to claim 4, characterized in that, A return spring (63) is fixedly connected to the end face of the piston plate (62), and the other end of the return spring (63) is fixedly connected to the inner cavity side wall of the pressurization box (61).
6. A multifunctional massage belt according to claim 5, characterized in that, The lower end face of the pressurization box (61) is fixedly connected to an atomizing rotary nozzle (64), and the atomizing rotary nozzle (64) is connected through the central control box (4). The atomizing rotary nozzle (64) is connected to the pressurization box (61), and a one-way water valve with an outlet to the inner cavity of the atomizing rotary nozzle (64) is provided at the connection between the pressurization box (61) and the atomizing rotary nozzle (64). The upper end face of the pressurization box (61) is fixedly connected to a replenishment tank (65), and the replenishment tank (65) is connected to the pressurization box (61) through a pipe. A one-way water valve with an outlet to the inner cavity of the pressurization box (61) is provided at the connection between the pressurization box (61) and the pipe.