Impeller driving assembly and water tower cleaning system

Abstract

The utility model belongs to the technical field of impellers, and particularly relates to an impeller driving assembly and a water tower cleaning system. Comprising an impeller, a fixing part and an input driving part, and the fixing part is provided with a first mounting cavity for mounting the input driving part and a second mounting cavity for mounting the impeller; a driving shaft is arranged on the impeller, the driving shaft can extend into the first mounting cavity to be matched with the input driving part, the input driving part is provided with a driving cap, the driving cap is movably arranged in the first mounting cavity and has a working state combined with the driving shaft and a non-working state separated from the driving shaft, and the elastic piece is mounted in the first mounting cavity; and the spring is used for acting on the driving cap to keep the driving cap in a non-working state. Under the condition that the impeller is stuck, the driving cap can be manually pushed, so that the driving cap moves towards the driving shaft and is combined with the driving shaft, then force is manually applied to rotate the driving cap, and the driving cap can drive the impeller to rotate again through the driving shaft, so that the stuck condition is relieved, and the impeller recovers to work normally.

Description

Technical Field

[0001] The utility model belongs to the technical field of impellers, and particularly refers to an impeller drive assembly and a water tower cleaning system. Background Art

[0002] An impeller is an important part of power machinery and fluid machinery. It is a wheel structure with multiple blades, which can be rotated by a fluid, such as the impeller in a water pump.

[0003] In the prior invention patent application CN 110773528 A, a water tower automatic cleaner is proposed. The cleaner is installed at the bottom of the water tower, and its cleaning method is as follows: opening the sewage outlet, the gravitational potential energy of the internal liquid is converted into the kinetic energy of the impeller, so that the impeller can drive the cleaning pipe to make a circular motion through the rotating shaft and the rotating seat. During the circular motion of the cleaning pipe, the scale on the bottom surface of the water tower can be scraped off and sucked into the water flow. The sucked water flow can drive the impeller to rotate when passing through the impeller, so as to carry out cleaning. That is to say, the rotation of the cleaner is driven by the rotation of the impeller. However, in the actual use process, since the sewage contains impurities such as scale, once there are more impurities, it is easy to cause the impeller to be stuck. After the impeller is stuck and cannot rotate, it cannot drive the cleaning pipe to rotate, so normal cleaning cannot be carried out.

[0004] Moreover, since the impeller is mostly installed inside, it is more troublesome to deal with the stuck problem of the impeller by removing the external structure after the impeller is stuck. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide an impeller drive assembly and a water tower cleaning system that can be manually intervened to drive the impeller to rotate again when the impeller is stuck.

[0006] The purpose of the utility model is realized as follows:

[0007] The utility model provides an impeller drive assembly, which has the following characteristics: including an impeller, a fixing part for installing the impeller, and an input drive part installed on the fixing part; wherein, the fixing part has a first installation cavity for installing the input drive part and a second installation cavity for installing the impeller; a drive shaft is arranged on the impeller, and the drive shaft can extend into the first installation cavity to cooperate with the input drive part. The input drive part has: a drive cap, which is movably arranged in the first installation cavity and has a working state of combining with the drive shaft and a non-working state of separating from the drive shaft; an elastic part, which is installed in the first installation cavity and is used to act on the drive cap to keep the drive cap in the non-working state.

[0008] Preferably, in the impeller drive assembly proposed in the present invention, it can also have the following characteristics: the fixing part comprises: a sleeve body, an accommodating cavity is opened inside, a fixing seat, which is fixed to one end of the sleeve body, a second installation cavity is opened on the middle side facing the accommodating cavity, the first installation cavity is opened on the middle side away from the accommodating cavity, and a fixing cover is installed on the fixing seat on the side where the first installation cavity is located, and is provided with a through hole for exposing the end face of the drive cap, and a sealing gasket is provided on the end of the drive cap close to the through hole, wherein the impeller is at least partially installed in the second installation cavity.

[0009] Preferably, in the impeller drive assembly proposed in the utility model, it can also have the following characteristics: a fixing sleeve that can be inserted into the fixing seat is formed on the fixing cover, the first mounting cavity is formed in the fixing sleeve, the driving cap has an active end and a driving end for combining with the driving shaft, the sealing gasket is sleeved on the active end, and a socket for inserting the driving shaft is opened on the driving end, and the socket has a shape adapted to the driving shaft.

[0010] Preferably, in the impeller drive assembly proposed in the present invention, the following feature can also be provided: the fixing seat is located on a partition between the second mounting cavity and the first mounting cavity, and a through hole for the drive shaft to pass through is provided in the middle of the partition.

[0011] Preferably, in the impeller drive assembly proposed in the utility model, it can also have the following feature: an air hole connecting the first mounting cavity and the second mounting cavity is also provided on the partition plate located near the through hole, and when the sealing gasket follows the drive shaft and is separated from the through hole, the gas enters the first mounting cavity through the gap around the drive cap, and enters the second mounting cavity from the air hole.

[0012] Preferably, the impeller drive assembly proposed in the present invention may also have the following characteristics: it also includes an output drive unit installed in the accommodating cavity, the input drive unit and the output drive unit are respectively arranged on the front and back sides of the impeller, and the end of the drive shaft away from the input drive unit is combined with the output drive unit.

[0013] Preferably, in the impeller drive assembly proposed in the utility model, it can also have the following characteristics: a water diversion part is installed in the fixed part, and the water diversion part is provided with a water diversion channel leading to the impeller, and a water outlet channel is also provided on the fixed part. The water from the water diversion channel flows to the impeller and drives the impeller to rotate, and is finally discharged from the water outlet channel. During the rotation of the impeller, the output drive part is driven to rotate through the output shaft.

[0014] Preferably, in the impeller drive assembly proposed by the present utility model, it may further have the following features: The water diversion part has: an installation sleeve, with sealing members respectively provided at both ends in the length direction inside, a sealing cavity for installing the output drive part is formed between the two sealing members, and a water diversion plate, which is spirally arranged on the outer periphery of the installation sleeve and forms the water diversion channel.

[0015] The present utility model also proposes a water tower cleaning system, which has the following features: at least including: an impeller drive assembly, which is the impeller drive assembly as described above, and a cleaning assembly, which has a cleaning pipe and a connecting pipe. One end of the connecting pipe is combined with the cleaning pipe, and the other end extends into the fixing part and rotates under the drive of the impeller drive assembly.

[0016] Preferably, in the water tower cleaning system proposed by the present utility model, it may further have the following features: One end of the connecting pipe extending into the fixing part is combined with the output drive part in the fixing part. An inlet channel communicating with the water diversion channel of the water diversion part in the fixing part is opened in the connecting pipe. The water flow from the cleaning pipe flows through the inlet channel into the water diversion channel. One end of the installation sleeve forms an installation seat for installing the connecting pipe, and a water passing hole communicating the inlet channel with the water diversion channel is opened on the installation seat.

[0017] The prominent and beneficial technical effects of the present utility model compared with the prior art are:

[0018] The present utility model provides an impeller drive assembly and a water tower cleaning system. Since a drive shaft is provided on the impeller and an input drive part is provided on the fixing part, the input drive part has a drive cap and an elastic member. When the impeller gets stuck during operation, the drive cap can be manually pushed to move the drive cap towards the drive shaft and combine with the drive shaft. Then, the drive cap is rotated manually by applying force. The drive cap can drive the impeller to rotate again through the drive shaft to release the stuck situation and enable the impeller to resume normal operation. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the water tower cleaning system in the embodiment of the present utility model.

[0020] Figure 2 is a cross-sectional schematic diagram of the water tower cleaning system in Embodiment 1 of the present utility model.

[0021] Figure 3 is Figure 2 a partial enlarged view of A in

[0022] Figure 4 is a cross-sectional schematic diagram of the drive cap in the working state in Embodiment 1 of the present utility model.

[0023] Figure 5 It is a schematic diagram of the installation structure of the water intake part and the input drive part in the embodiment of the present utility model.

[0024] Figure 6 It is a schematic cross-sectional view of the installation structure of the impeller and the input drive part in Embodiment 2 of the present utility model.

[0025] Figure 7 It is a schematic diagram of the flow direction of gas entering in Embodiment 2 of the present utility model.

[0026] Reference numerals: water tower 5, cleaning assembly 7, connecting pipe 71, cleaning pipe 72, water inlet channel 73, impeller drive assembly 8, impeller 81, fixing part 82, first installation cavity 821, sleeve body 822, fixing seat 823, accommodating cavity 824, second installation cavity 825, fixing cover 826, fixing sleeve 8261, through hole 8262, partition plate 827, air hole 8271, water outlet pipe 828, water outlet channel 8281, drive shaft 83, input drive part 84, drive cap 841, elastic member 842, sealing gasket 843, output drive part 85, water intake part 86, water intake channel 861, installation sleeve 862, sealing cavity 8621, water passing hole 8622, fixing groove 8623, bearing 8624, installation seat 8625, water intake plate 863. Specific embodiments

[0027] The present utility model will be further described below in conjunction with specific embodiments:

[0028] It should be noted that the structures, ratios, sizes, etc. shown in the attached drawings of the embodiments of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions for the implementation of this application. Therefore, they do not have any technical substance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application. At the same time, the terms such as "upper" and "lower" cited in the embodiments of this specification are only for the convenience of description and are not used to limit the scope for the implementation of this application. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope for the implementation of this application.

[0029] When an element is referred to as being "connected", "arranged", or "installed" to another element, it can be directly connected to the other element or can also be indirectly connected or arranged or installed to the other element through an intermediate element.

[0030] It should also be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes, and cannot be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0031] <Example 1>

[0032] This embodiment provides a water tower cleaning system, as Figure 1 shown, installed at the bottom of the water tower 5, and includes at least an impeller drive assembly 8 and a cleaning assembly 7. Among them, the cleaning assembly 7 has a cleaning pipe 72 and a connecting pipe 71. One end of the connecting pipe 71 is combined with the cleaning pipe 72, and the other end extends into the impeller drive assembly 8 and rotates under the drive of the impeller drive assembly 8.

[0033] As Figure 2 shown, the impeller drive assembly 8 includes: an impeller 81, a fixing part 82, an input drive part 84, an output drive part 85, and a water diversion part 86. The fixing part 82 is used to install the impeller 81, the input drive part 84, the output drive part 85, and the water diversion part 86. Among them, the fixing part 82 has a first installation cavity 821 for installing the input drive part 84 and a second installation cavity 825 for installing the impeller 81; a drive shaft 83 is provided on the impeller 81, and this drive shaft 83 can extend into the first installation cavity 821 to cooperate with the input drive part 84.

[0034] As Figure 3 shown, the input drive part 84 has a drive cap 841 and an elastic member 842 (such as a spring). The drive cap 841 is movably arranged in the first installation cavity 821, and has a working state of being combined with the drive shaft 83 (such as Figure 4 the state shown) and a non-working state of being separated from the drive shaft 83 (such as Figure 3 the state shown). The elastic member 842 is installed in the first installation cavity 821 and is used to act on the drive cap 841 to keep the drive cap 841 in the non-working state. In the working state, the drive shaft 83 is combined with the drive cap 841, and the rotation of the drive cap 841 can drive the drive shaft 83 to rotate, thereby driving the impeller 81 to rotate. In the non-working state, the drive shaft 83 is separated from the drive cap 841, and the two do not affect each other. The user can use a tool to push the drive cap 841 towards the side where the drive shaft 83 is located, so as to prompt the drive cap 841 to approach and combine with the drive shaft 83, and then drive the drive cap 841 to rotate. That is, the user can use a tool to change the drive cap 841 from the non-working state to the working state. After the tool is removed, under the drive of the elastic member 842, the drive cap 841 can be restored from the working state to the non-working state.

[0035] As Figures 2 - 4As shown in the figure, the fixing part 82 includes a sleeve body 822, a fixing base 823 and a fixing cover 826. The fixing base 823 is fixed at one end of the sleeve body 822, and a sealing ring is pressed between them. The inside of the sleeve body 822 is hollow, forming a receiving cavity 824 for accommodating the output driving part 85 and the water guiding part 86. On the side of the middle part of the fixing base 823 facing the receiving cavity 824, a second installation cavity 825 is formed. At least part of the impeller 81 is installed in the second installation cavity 825. On the side of the middle part of the fixing base 823 facing away from the receiving cavity 824, a first installation cavity 821 is formed, and the fixing cover 826 is installed on the fixing base 823 on the side where the first installation cavity 821 is located. The middle part of the fixing base 823 also has a partition 827 for separating the second installation cavity 825 from the first installation cavity 821, and a through hole for the driving shaft 81 to pass through is formed in the middle of the partition 827.

[0036] The fixing cover 826 is threadedly connected to the bottom of the fixing base 823, and a fixing sleeve 8261 that can be inserted into the fixing base 823 is formed in the middle of the fixing cover 826. The fixing sleeve 8261 is hollow to form the first installation cavity 821, and the elastic member 842 and the driving cap 841 are installed in the fixing sleeve. The driving cap 841 has an acting end 8411 and a driving end 8412 for engaging with the driving shaft 83. A through hole 8262 for the end face of the acting end 8411 to be exposed is formed in the middle of the bottom surface of the fixing cover 826 (as shown in the figure). An insertion hole 8413 for the driving shaft 83 to be inserted is formed in the driving end 8412, and the insertion hole 8413 has a shape adapted to the driving shaft 83. A sealing gasket 843 is installed near the through hole 8262 of the acting end 8411. One side of the sealing gasket 843 facing the through hole 8262 is used to seal the inner edge of the through hole 8262, and a cross or straight notch is formed on the end face of the acting end 8411, which is convenient for the user to embed a tool (such as a cross or straight screwdriver) and then push and rotate the driving cap 841. Figure 4 The input driving part 84 and the output driving part 85 are respectively placed on the front and back sides of the impeller 81. The output driving part 85 is a planetary gear set and is installed in the receiving cavity 824. One end of the driving shaft 83 away from the input driving part 84 is inserted into the output driving part 85 to engage with the output driving part 85. As shown in the figure, a water guiding part 86 is installed in the receiving cavity 824 of the sleeve body 822 of the fixing part 82. The water guiding part 86 is provided with a water guiding channel 861 leading to the impeller 81. An outlet pipe 828 is also provided on the fixing base 823 of the fixing part 82. A water outlet channel 8281 leading to the second installation cavity 825 is formed in the outlet pipe 828. The water flow from the water guiding channel 861 flows to the impeller 81 and drives the impeller 81 to rotate, and finally is discharged from the water outlet channel 8281. During the rotation of the impeller 81, the output driving part 85 is driven to rotate through the output shaft 83.

[0037] The input driving part 84 and the output driving part 85 are respectively located on the front and back sides of the impeller 81. The output driving part 85 is a planetary gear set and is installed in the receiving cavity 824. One end of the driving shaft 83 away from the input driving part 84 is inserted into the output driving part 85 to be combined with the output driving part 85. As Figure 2 shown, a water guiding part 86 is installed in the receiving cavity 824 of the sleeve body 822 of the fixing part 82. The water guiding part 86 is provided with a water guiding channel 861 leading to the impeller 81. An outlet pipe 828 is also provided on the fixing base 823 of the fixing part 82. A water outlet channel 8281 leading to the second installation cavity 825 is formed in the outlet pipe 828. The water flow from the water guiding channel 861 flows to the impeller 81 and drives the impeller 81 to rotate, and finally is discharged from the water outlet channel 8281. During the rotation of the impeller 81, the output driving part 85 is driven to rotate through the output shaft 83.

[0038] As Figure 2 and Figure 5 shown, the water diversion part 86 has an installation sleeve 862 and a water diversion plate 863. The water diversion plate 963 is spirally arranged on the outer periphery of the installation sleeve 862 and forms a spiral water diversion channel 861. Refer to Figure 5 . The water diversion plate 963 is inclined at the end of the water diversion channel 861 towards the blade interval of the impeller 81, so as to better guide the water flow into the blade interval of the impeller 81 to push the blades and make the impeller 81 rotate. As Figure 2 shown, the inside of the installation sleeve 862 is hollow, and seals are respectively provided at both ends along the length direction. A sealing cavity 8621 for installing the output drive part 85 is formed between the two seals. The output drive part 85 is installed in the sealing cavity 8621 to form a sealing protection, which can prevent water flow from entering the sealing cavity and affecting the output drive part 85.

[0039] As Figure 2 shown, one end of the connecting pipe 71 extending into the fixing part 8 is combined with the output drive part 85 in the fixing part 8. An inlet channel 73 communicating with the water diversion channel 861 of the water diversion part 86 in the fixing part 8 is opened in the connecting pipe 71. As Figure 5 shown, an installation seat 8622 for installing the connecting pipe 71 is formed at one end of the installation sleeve 862. A water passing hole 8622 communicating the inlet channel 73 with the water diversion channel 861 is opened on the installation seat 8625. As Figure 2 and Figure 5 shown, a fixing groove 8623 is provided in the middle of the installation seat 8625. A bearing 8624 is fixedly installed in the fixing groove 8623. A sealing ring is provided between the bearing 8624 and the fixing groove 8623. A connecting rod 74 is provided vertically in the middle of the connecting pipe 71. The end of the connecting rod 74 passes through the bearing 8624 and is inserted into the output end of the output drive part 85 for fixation, so as to realize the installation and fixation of the connecting pipe 71 and the output drive part 85.

[0040] The driving principle of the cleaning pipe in this embodiment: The water flow from the cleaning pipe 72 passes through the inlet channel 73 and the water passing hole 8622 and flows into the water diversion channel 861, then flows along the water diversion plate 863 to the impeller 81, pushes the impeller 81 to rotate, and then drives the output drive part 85 to rotate through the output shaft. During the rotation of the output drive part 85, the connecting pipe 71 and the cleaning pipe 72 will also rotate together, so as to clean the bottom of the water tower.

[0041] The recovery principle of the impeller 81 stuck in this embodiment is as follows: when the impeller 81 is stuck due to impurities during operation, the driving cap 841 can be pushed by a tool (such as a screwdriver) to move the driving cap 841 toward the driving shaft 83 and combine with the driving shaft 83, and then the driving cap 841 is rotated by manual force, and the driving cap 841 can drive the impeller 81 to rotate again through the driving shaft 83, so that the scale impurities stuck around the impeller 81 can be shaken off to release the stuck situation and allow the impeller 81 to resume normal operation. Finally, the tool is pulled out, and the driving cap 841 returns to a non-working state driven by the elastic member 842. After the tool is pulled out, the impeller 81 can still continue to work driven by the water flow.

[0042] In this embodiment, the impeller 81 can be a rubber impeller, with a drive shaft 83 installed in the middle, and the output drive part 85 is a planetary gear set, which has an input gear, and one end of the drive shaft 83 is connected to the input gear, and the planetary gear set is driven to rotate by the drive shaft 83. Since one end of the drive shaft 83 is directly connected to the output drive part 85, if the output drive part 85 (planetary gear set) is stuck, the bottom drive cap 841 can be directly pushed into the drive shaft 83 by a screwdriver, and then the screwdriver is rotated to replace the rubber impeller 81 to drive the bottom of the planetary gear set to make the gear rotate again, which is very convenient.

[0043] This embodiment can also realize manual driving of the cleaning tube to rotate and clean, specifically as follows: manually use a tool (such as a screwdriver) to push the driving cap 841, so that the driving cap 841 moves toward the driving shaft 83 and is combined with the driving shaft 83, and then manually apply force to rotate the driving cap 841, and the driving cap 841 can drive the impeller 81 and the output drive part 85 to rotate through the driving shaft 83, thereby driving the connecting tube 71 and the cleaning tube 72 to rotate together, so as to realize manual driving of the cleaning tube to rotate and clean by continuous manual force. After cleaning is completed, the tool can be pulled out.

[0044] <Example 2>

[0045] This embodiment is based on the above embodiment 1. Figure 6As shown in the figure, an air hole 8271 communicating the first installation cavity 821 and the second installation cavity 825 is also provided on the partition plate 827 near the through hole. There is a gap between the peripheral surface of the gasket 843 on the driving cap 841 and the inner wall of the fixed sleeve 8261. When the driving cap 841 is in a non-operating state, the acting end 8411 of the driving cap 841 plugs at the through hole 8262, and at this time, the bottom surface of the gasket 843 fits on the inner edge of the through hole 8262, so that the first installation cavity 821 inside the fixed sleeve 8261 is separated from the outside. When the gasket 843 moves with the driving cap 841 and separates from the inner edge of the through hole 8262, the gas from the outside enters the first installation cavity 821 through the gap around the gasket 843 and the driving cap 841 (that is, the gap between the gasket 843 and the inner wall of the fixed sleeve 8261, and the gap between the driving cap 841 and the inner wall of the fixed sleeve 8261), and enters the second installation cavity 825 through the air hole 8271.

[0046] In some use scenarios, when cleaning the bottom of the water tower, due to the large water flow drop in the water tower, the water pressure negative pressure is too large and the suction force is enhanced, resulting in the cleaning pipe being sucked flat, which affects the cleaning effect. Using the structural device of this embodiment can supplement the outside air to enter and balance the air pressure, so that the cleaning pipe can maintain its original shape and not be sucked flat for normal operation.

[0047] As Figure 7 shown in the figure, under the action of negative pressure, the outside gas will push the driving cap 841 to compress the elastic member 842 (the elastic member 842 is selected as a spring, and the spring pressure should be set with a rated value in advance), so that the through hole 8262 is opened, and the gas will pass through the through hole 8262, the gap between the driving cap 841 and the fixed sleeve 8261, the shaft hole gap between the driving shaft 83 and the partition plate 827, and the air hole 8271 in sequence, and enter the inside of the second installation cavity 825, mixing with the water flow to achieve a deceleration effect, so as to prevent the cleaning pipe from being flattened due to negative pressure.

[0048] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention. For example, in the above embodiments, the cleaning device at the bottom of the water tower is taken as an example for description. In actual situations, the impeller drive assembly can also be used in other situations where an impeller is needed, such as a water pump, especially in an environment of sewage treatment. Once the impeller gets stuck, a tool can be used to push the driving cap to release the jamming.

Claims

1. Impeller drive assembly, characterized in that, include: impeller, a fixing portion for mounting the impeller, and An input drive unit, mounted on the fixing unit; Wherein, the fixing part has a first mounting cavity for mounting the input drive part and a second mounting cavity for mounting the impeller; The impeller is provided with a driving shaft, which can extend into the first mounting cavity and cooperate with the input driving part. The input drive unit has: A drive cap is movably disposed in the first mounting cavity and has a working state in which it is combined with the drive shaft and a non-working state in which it is separated from the drive shaft. An elastic member is installed in the first installation cavity and is used to act on the driving cap to keep the driving cap in the non-working state.

2. The impeller drive assembly according to claim 1, characterized in that, The fixing portion has: The sleeve body has an accommodating cavity inside. a fixing seat fixed to one end of the sleeve body, the middle part of which is provided with the second installation cavity on one side facing the accommodating cavity, and the middle part of which is provided with the first installation cavity on one side away from the accommodating cavity, and The fixing cover is installed on the fixing seat at the side where the first installation cavity is located, and is provided with a through hole for exposing the end surface of the driving cap. A sealing gasket is provided at one end of the driving cap close to the through hole.

3. The impeller drive assembly according to claim 2, wherein: The fixing cover is formed with a fixing sleeve which can be inserted into the fixing seat, and the fixing sleeve is formed with the first installation cavity. The driving cap has an effective end and a driving end for combining with the driving shaft, the effective end is sleeved with the sealing gasket, and the driving end is provided with a socket for inserting the driving shaft, and the socket has a shape adapted to the driving shaft.

4. The impeller drive assembly according to claim 2, characterized in that: The fixing seat has a partition plate for separating the first installation cavity from the second installation cavity, and a through hole for the driving shaft to pass through is opened in the middle of the partition plate.

5. The impeller drive assembly according to claim 4, wherein: An air hole connecting the first mounting cavity and the second mounting cavity is also provided on the partition near the through hole. When the sealing gasket follows the drive cap and separates from the through hole, the gas enters the first mounting cavity through the gap around the drive cap and enters the second mounting cavity from the air hole.

6. The impeller drive assembly according to any one of claims 2-5, characterized in that: It also includes an output drive unit installed in the accommodating cavity, the input drive unit and the output drive unit are respectively arranged on the front and back sides of the impeller, and one end of the drive shaft away from the input drive unit is combined with the output drive unit.

7. The impeller drive assembly according to claim 6, wherein: A water diversion part is installed in the fixed part, and the water diversion part is provided with a water diversion channel leading to the impeller. The fixed part is also provided with a water outlet channel. The water from the water diversion channel flows to the impeller and drives the impeller to rotate, and is finally discharged from the water outlet channel. During the rotation of the impeller, the output drive part is driven to rotate through the output shaft.

8. The impeller drive assembly according to claim 7, wherein: The water diversion part has: The sleeve is installed, and sealing members are respectively provided at both ends of the inner extension direction, and a sealing cavity for installing the output drive unit is formed between the two sealing members. The water diversion plate is spirally arranged on the outer periphery of the installation sleeve and forms the water diversion channel.

9. Water tower cleaning system, characterized in that: At least: The impeller drive assembly is an impeller drive assembly as claimed in any one of claims 1 to 8, Cleaning assembly, having a cleaning pipe and a connecting pipe, one end of the connecting pipe is combined with the cleaning pipe, and the other end extends into the fixing part and rotates under the drive of the impeller drive assembly.

10. The water tower cleaning system according to claim 9, characterized in that: One end of the connecting pipe extending into the fixing part is combined with the output drive part in the fixing part. An intake passage communicating with the water intake passage of the water intake part in the fixing part is provided in the connecting pipe. The water flow from the cleaning pipe flows through the intake passage into the water intake passage.

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