Booster pump shell assembly and booster pump

Abstract

The booster pump shell assembly comprises a pump body, a pump cover and at least one clamping assembly, the pump body is covered with the pump cover, the clamping assembly comprises a first clamping structure and a second clamping structure which can be clamped in a matched mode, the first clamping structure is arranged on the pump body, and the second clamping structure is arranged on the pump body. The second clamping structure is arranged on the pump cover, and when the pump cover covers the pump body, the pump cover can rotate forwards or reversely relative to the pump body and enables the first clamping structure and the second clamping structure to be clamped together or unclamped. Compared with a traditional booster pump shell assembly connected through bolts, the booster pump shell assembly adopting the rotary clamping structure can more rapidly connect or separate the pump cover and the pump body, operation is easy and convenient, the assembly and disassembly efficiency of the booster pump is higher, and production assembly and daily maintenance of the booster pump can be better conducted.

Description

Technical Field

[0001] This utility model relates to the field of booster pumps, and in particular to a booster pump housing assembly and a booster pump using the housing assembly. Background Technology

[0002] Booster pumps are common equipment in water pipelines, mainly used to increase water pressure and ensure smooth water flow. They are widely used in various scenarios requiring increased water pressure. A booster pump mainly consists of a pump body, pump cover, and impeller. In existing technology, the pump cover and pump body are typically connected together with multiple bolts. However, this connection method requires installing or removing each bolt individually during assembly or disassembly, which is cumbersome, inefficient, and inconvenient for the production, assembly, and daily maintenance of booster pumps. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a booster pump housing assembly that can quickly connect or separate the pump cover and the pump body, is simple to operate, has high efficiency, and facilitates the production, assembly, and daily maintenance of the booster pump.

[0004] This utility model also proposes a booster pump having the above-mentioned booster pump housing assembly.

[0005] A booster pump housing assembly according to a first aspect of the present invention includes a pump body, a pump cover, and at least one set of snap-fit ​​components. The pump cover is fitted onto the pump body. The snap-fit ​​components include a first snap-fit ​​structure and a second snap-fit ​​structure that can engage with each other. The first snap-fit ​​structure is disposed on the pump body, and the second snap-fit ​​structure is disposed on the pump cover. When the pump cover is fitted onto the pump body, the pump cover can rotate relative to the pump body in a forward or reverse direction to engage or disengage the first snap-fit ​​structure and the second snap-fit ​​structure.

[0006] A booster pump housing assembly according to an embodiment of the present utility model has at least the following beneficial effects:

[0007] This utility model embodiment of the booster pump housing assembly is provided with at least one set of snap-fit ​​components, including a first snap-fit ​​structure and a second snap-fit ​​structure. When assembling the booster pump, the pump cover is first placed on the pump body, and then the pump cover is rotated to snap the first and second snap-fit ​​structures together, thereby achieving a quick connection between the pump cover and the pump body. When disassembling the booster pump, the pump cover is rotated in the opposite direction to release the snap-fit ​​between the first and second snap-fit ​​structures, thereby achieving a quick separation between the pump cover and the pump body. Compared with traditional booster pump housing assemblies using bolt connections, this utility model embodiment of the booster pump housing assembly can more quickly connect or separate the pump cover and the pump body, is simple and convenient to operate, has higher assembly and disassembly efficiency for the booster pump, and can better facilitate the production, assembly, and daily maintenance of the booster pump. Furthermore, the snap-fit ​​components have a simple structure, are easy to manufacture, and have lower processing costs.

[0008] According to some embodiments of the present invention, the number of the snap-fit ​​components is at least two sets, and all the snap-fit ​​components are arranged at circumferential intervals along the pump body and the pump cover.

[0009] According to some embodiments of the present invention, the first snap-fit ​​structure is a snap-fit ​​groove, and the second snap-fit ​​structure is a snap-fit ​​block, or the first snap-fit ​​structure is a snap-fit ​​block and the second snap-fit ​​structure is a snap-fit ​​groove; one end of the snap-fit ​​groove has an opening, and when the pump cover rotates forward or backward relative to the pump body, the snap-fit ​​block can pass through the opening and be fitted into the snap-fit ​​groove or disengage from the snap-fit ​​groove.

[0010] According to some embodiments of the present invention, the inside of the snap-fit ​​groove has a limiting part; the snap-fit ​​block passes through the opening and is embedded in the snap-fit ​​groove, and the snap-fit ​​block can abut against the limiting part.

[0011] According to some embodiments of the present invention, at least a portion of the sidewalls of the snap-fit ​​groove and the opening are provided with observation windows.

[0012] According to some embodiments of the present invention, a sealing ring is provided between the pump cover and the pump body. When the pump cover is closed on the pump body, the sealing ring can seal the gap between the pump cover and the pump body.

[0013] According to some embodiments of the present invention, the outer wall of the pump body has an annular groove, and the sealing ring is embedded in the annular groove.

[0014] According to some embodiments of the present invention, the pump cover has an inlet pipe section and an outlet pipe section that connect the interior and exterior of the pump cover. The inlet pipe section is arranged along the axial direction of the pump cover, and the outlet pipe section is arranged along the circumferential direction of the pump cover.

[0015] According to some embodiments of this utility model, the inner diameter of the inlet pipe section is larger than the inner diameter of the outlet pipe section.

[0016] A booster pump according to a second aspect of the present invention includes a booster pump body, wherein the booster pump body is provided with the above-described booster pump housing assembly.

[0017] A booster pump according to an embodiment of the present utility model has at least the following beneficial effects:

[0018] This embodiment of the booster pump utilizes the aforementioned booster pump housing assembly. During assembly, the pump cover is first placed over the pump body, and then the pump cover is rotated to engage the first and second locking structures, thus achieving a quick connection between the pump cover and the pump body. During disassembly, the pump cover is rotated in the opposite direction to release the engagement of the first and second locking structures, thereby achieving a quick separation of the pump cover and the pump body. Compared to traditional booster pump housing assemblies using bolt connections, this embodiment of the booster pump housing assembly allows for faster connection and separation of the pump cover and pump body, is simple and convenient to operate, and offers higher efficiency in the assembly and disassembly of the booster pump. It also facilitates better production, assembly, and daily maintenance of the booster pump. Furthermore, the locking assembly has a simple structure, is easy to manufacture, and has lower processing costs.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the booster pump housing assembly in a snap-fit ​​state according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 The diagram shown illustrates the structure of the booster pump housing assembly in a disengaged state.

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle section;

[0024] Figure 4 This is a schematic diagram of the pump body according to an embodiment of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point B in the middle section;

[0026] Figure 6 for Figure 4A schematic diagram of the pump body from another direction is shown;

[0027] Figure 7 This is a cross-sectional view of the booster pump housing assembly according to an embodiment of the present utility model.

[0028] Figure label:

[0029] Pump body 100, snap-fit ​​groove 110, opening 111, limiting part 112, observation window 113, annular groove 120, pump cover 200, snap-fit ​​block 210, water inlet pipe section 220, water outlet pipe section 230, pressurization chamber 300. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Booster pumps are common equipment in water pipelines, mainly used to increase water pressure and ensure smooth water flow. They are widely used in various scenarios requiring increased water pressure. A booster pump mainly consists of a pump body 100, a pump cover 200, and an impeller. The booster pump has a pressure-boosting chamber 300 inside, within which the impeller is located and connected to the drive unit via a drive shaft. When the drive unit starts, it drives the impeller to rotate at high speed, creating a low-pressure zone inside the booster pump. This pressure difference draws external fluid into the booster pump. The impeller continues to rotate at high speed, pressurizing the fluid. During this process, the fluid velocity gradually decreases while the pressure gradually increases. Once the fluid is compressed to a certain level, it is discharged from the booster pump.

[0036] Reference Figures 1 to 7 According to a first aspect of the present invention, a booster pump housing assembly includes a pump body 100, a pump cover 200, and at least one set of snap-fit ​​components. The pump cover 200 covers the pump body 100. The snap-fit ​​components include a first snap-fit ​​structure and a second snap-fit ​​structure that can engage with each other. The first snap-fit ​​structure and the second snap-fit ​​structure can be a slot-type or a snap-on type snap-fit ​​structure. The first snap-fit ​​structure is disposed on the pump body 100, and the second snap-fit ​​structure is disposed on the pump cover 200. When the pump cover 200 is covered by the pump body 100, the pump cover 200 can rotate relative to the pump body 100 in a forward or reverse direction to engage or disengage the first snap-fit ​​structure and the second snap-fit ​​structure. The interior of the pump cover 200 and the interior of the pump body 100 together form a booster chamber 300.

[0037] Specifically, the first snap-fit ​​structure is arranged along the circumference of the pump body 100 and is an integral structure with the pump body 100, and the second snap-fit ​​structure is arranged along the circumference of the pump cover 200 and is an integral structure with the pump cover 200. When the pump cover 200 rotates in the forward or reverse direction relative to the pump body 100, the first snap-fit ​​structure and the second snap-fit ​​structure can move relative to each other and snap together or release the snap-fit.

[0038] By adopting the above structure, at least one set of snap-fit ​​components is provided between the pump body 100 and the pump cover 200. The snap-fit ​​components include a first snap-fit ​​structure and a second snap-fit ​​structure. When assembling the booster pump, the pump cover 200 is first placed on the pump body 100, and then the pump cover 200 is rotated to snap the first and second snap-fit ​​structures together, thereby achieving a quick connection between the pump cover 200 and the pump body 100. When disassembling the booster pump, the pump cover 200 is rotated in the opposite direction to release the snap-fit ​​between the first and second snap-fit ​​structures, thereby achieving a quick separation between the pump cover 200 and the pump body 100. Compared with the traditional booster pump housing assembly using bolt connections, the booster pump housing assembly of this embodiment can more quickly connect or separate the pump cover 200 and the pump body 100. It is simple and convenient to operate, and the assembly and disassembly efficiency of the booster pump is higher. It can better facilitate the production, assembly, and daily maintenance of the booster pump. Furthermore, the snap-fit ​​components have a simple structure, are easy to manufacture, and have low processing costs.

[0039] It is understood that the pump cover 200 is usually circular in shape to facilitate rotation, and the outer periphery of the pump body 100 has an annular structure that can support the pump cover 200. Depending on actual needs, and to ensure that the first and second snap-fit ​​structures can properly snap or release when the pump cover 200 rotates in the forward or reverse direction relative to the pump body 100, the pump cover 200 may also be in other irregular shapes. This utility model does not specifically limit this.

[0040] Reference Figure 1 , 2 In some embodiments of this utility model, the number of snap-fit ​​components is at least two sets, and all snap-fit ​​components are arranged at intervals along the circumference of the pump body 100 and the pump cover 200. Specifically, the number of snap-fit ​​components is four sets, and the four sets of snap-fit ​​components are arranged at intervals along the outer periphery of the pump body 100 and the pump cover 200.

[0041] By adopting the above structure, at least two sets of snap-fit ​​components are evenly distributed on the outer periphery of the pump body 100 and the pump cover 200. These snap-fit ​​components can connect the pump body 100 and the pump cover 200 together, making the connection between the pump body 100 and the pump cover 200 more stable. The snap-fit ​​components evenly distributed on the outer periphery of the pump body 100 and the pump cover 200 can also ensure that when the pump cover 200 is closed on the pump body 100 and connected to the pump body 100, there will be no problem of one end of the pump body 100 or the pump cover 200 lifting up or separating from each other, resulting in gaps.

[0042] It should be noted that in some embodiments, these snap-fit ​​components may not be arranged in a spaced-out manner, but rather unevenly distributed on the outer periphery of the pump body 100 and the pump cover 200. Thus, the pump cover 200 can only close onto the pump body 100 when it is in a specific direction or angle, or after closing onto the pump body 100, it can rotate relative to the pump body 100 in either a forward or reverse direction to engage the first and second snap-fit ​​structures. When the pump cover 200 is in other directions or angles, it cannot close onto the pump body 100, or after closing onto the pump body 100, it cannot rotate relative to the pump body 100 in either a forward or reverse direction to engage the first and second snap-fit ​​structures. This ensures that during the assembly of the booster pump, the pump cover 200 cannot be installed from an incorrect angle or direction, reducing the likelihood of assembly errors.

[0043] Reference Figures 1 to 7 In some embodiments of this utility model, the first snap-fit ​​structure is a snap-fit ​​groove 110, and the second snap-fit ​​structure is a snap-fit ​​block 210, or the first snap-fit ​​structure is a snap-fit ​​block 210 and the second snap-fit ​​structure is a snap-fit ​​groove 110; one end of the snap-fit ​​groove 110 has an opening 111, and when the pump cover 200 rotates in the forward or reverse direction relative to the pump body 100, the snap-fit ​​block 210 can pass through the opening 111 and be embedded in the snap-fit ​​groove 110 or disengage from the snap-fit ​​groove 110.

[0044] By adopting the above structure, the snap-fit ​​groove 110 and the snap-fit ​​block 210 can simply and reliably realize the snap-fit ​​connection of the first snap-fit ​​structure and the second snap-fit ​​structure, as well as the snap-fit ​​connection release. The structure of the snap-fit ​​groove 110 and the snap-fit ​​block 210 is simple, convenient to process and manufacture, and has a low processing cost.

[0045] It should be noted that the snap-fit ​​groove 110 and snap-fit ​​block 210 provided on the pump body 100 or pump cover 200 have an arc along the length direction, so that the snap-fit ​​block 210 can smoothly pass through the opening 111 and be inserted into the snap-fit ​​groove 110 or disengage from the snap-fit ​​groove 110 when the pump cover 200 rotates in the forward or reverse direction relative to the pump body 100.

[0046] Reference Figures 4 to 6 In some embodiments of this utility model, the inside of the snap-fit ​​groove 110 has a limiting part 112; the snap-fit ​​block 210 passes through the opening 111 and is embedded in the snap-fit ​​groove 110, and the snap-fit ​​block 210 can abut against the limiting part 112.

[0047] By adopting the above structure, after the snap-fit ​​block 210 moves a certain distance in the snap-fit ​​groove 110, it abuts against the limiting part 112. The limiting part 112 restricts the movement of the snap-fit ​​block 210 to limit the further rotation of the pump cover 200 relative to the pump body 100, preventing the snap-fit ​​groove 110 and the snap-fit ​​block 210 from disengaging due to excessive rotation of the pump cover 200 relative to the pump body 100 when they are snapped together. In addition, the limiting part 112 can also position the snap-fit ​​block 210 relative to the snap-fit ​​groove 110, thereby positioning the pump cover 200 relative to the pump body 100, so that the pump cover 200 or the pump body 100 can be in an accurate installation position after being rotated and snapped together, which facilitates the assembly of the booster pump.

[0048] It should be noted that the limiting part 112 is the side wall of the snap-fit ​​groove 110 opposite to the opening 111. Depending on the actual needs, the limiting part 112 can also be a limiting structure set at any position inside the snap-fit ​​groove 110.

[0049] Reference Figures 4 to 6 In some embodiments of this utility model, at least a portion of the sidewalls of the snap-fit ​​groove 110 and the opening 111 adjacent to or opposite to the opening are provided with observation windows 113.

[0050] By adopting the above structure, the internal condition of the snap-fit ​​slot 110 can be observed through the observation window 113 from the outside of the snap-fit ​​slot 110. When the snap-fit ​​block 210 is inserted into the snap-fit ​​slot 110, the position of the snap-fit ​​block 210 inside the snap-fit ​​slot 110 can be observed through the observation window 113, thereby determining whether the snap-fit ​​block 210 and the snap-fit ​​slot 110 are snapped into place.

[0051] It should be noted that in some embodiments, in order to make the connection more secure, the snap-fit ​​block 210 and the snap-fit ​​groove 110 are connected by an interference fit. The snap-fit ​​block 210 needs to overcome friction to be embedded in the snap-fit ​​groove 110. At this time, by setting a longer observation window 113, the friction between the snap-fit ​​block 210 and the snap-fit ​​groove 110 can be reduced, so that the snap-fit ​​block 210 can be embedded in the snap-fit ​​groove 110 more easily.

[0052] Reference Figure 7 In some embodiments of this utility model, a sealing ring is provided between the pump cover 200 and the pump body 100. When the pump cover 200 is closed on the pump body 100, the sealing ring can seal the gap between the pump cover 200 and the pump body 100.

[0053] By adopting the above structure, the sealing ring seals the gap between the pump cover 200 and the pump body 100, thereby preventing fluid from flowing out from the gap between the pump cover 200 and the pump body 100 when the booster pump is working. This ensures the normal operation of the booster pump and ensures that the booster pump's pressure boosting effect on the fluid is not affected.

[0054] Reference Figure 4 and Figure 7 In some embodiments of this utility model, the outer wall of the pump body 100 has an annular groove 120, and the sealing ring is embedded in the annular groove 120.

[0055] By adopting the above structure, when the sealing ring is embedded in the annular groove 120, the annular groove 120 can accommodate and fix the sealing ring, making it difficult for the sealing ring to slide off and thus affect the sealing effect.

[0056] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the pump cover 200 has an inlet pipe section 220 and an outlet pipe section 230 that connect the interior and exterior of the pump cover 200. The inlet pipe section 220 is arranged along the axial direction of the pump cover 200, and the outlet pipe section 230 is arranged along the circumferential direction of the pump cover 200.

[0057] Specifically, the inlet pipe section 220 and the outlet pipe section 230 are connected to the booster chamber 300 and the outside of the booster pump. The drive device starts and drives the impeller to rotate at high speed around the axis of the pump cover 200. The booster chamber 300 forms a low-pressure zone and draws in external fluid from the inlet pipe section 220 arranged along the axial direction of the pump cover 200. The impeller continues to rotate at high speed, and the fluid is thrown towards the outlet pipe section 230 arranged circumferentially along the pump cover 200 under the action of centrifugal force and flows out from the outlet pipe section 230.

[0058] By adopting the above structure, the booster pump can efficiently boost the pressure of fluids, and the boosting effect is better.

[0059] Reference Figure 1 and Figure 2 In some embodiments of this utility model, the inner diameter of the inlet pipe section 220 is larger than the inner diameter of the outlet pipe section 230.

[0060] By adopting the above structure, the larger inner diameter inlet pipe section 220 can ensure that the fluid can flow more smoothly into the booster pump, while the smaller inner diameter outlet pipe section 230 can further increase the pressure of the fluid when it flows out of the booster pump, thus improving the boosting effect.

[0061] Reference Figures 1 to 7 According to a second aspect of the present invention, a booster pump includes a booster pump body, the booster pump body being configured with a booster pump housing assembly as described in the above embodiment.

[0062] The booster pump of this embodiment employs the aforementioned booster pump housing assembly. During assembly, the pump cover 200 is first placed over the pump body 100, and then the pump cover 200 is rotated to engage the first and second snap-fit ​​structures, thus achieving a quick connection between the pump cover 200 and the pump body 100. During disassembly, the pump cover 200 is rotated in the opposite direction to release the first and second snap-fit ​​structures, thereby achieving a quick separation between the pump cover 200 and the pump body 100. Compared to traditional booster pump housing assemblies using bolt connections, the booster pump housing assembly of this embodiment allows for faster connection or separation of the pump cover 200 and the pump body 100. It is simple and convenient to operate, resulting in higher efficiency in the assembly and disassembly of the booster pump. This facilitates better production, assembly, and daily maintenance of the booster pump. Furthermore, the snap-fit ​​assembly has a simple structure, is easy to manufacture, and has lower processing costs.

[0063] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A booster pump housing assembly, characterized in that, include: Pump body (100); Pump cover (200), which covers the pump body (100); At least one set of snap-fit ​​components, the snap-fit ​​components including a first snap-fit ​​structure and a second snap-fit ​​structure that can be snapped together, the first snap-fit ​​structure being disposed on the pump body (100) and the second snap-fit ​​structure being disposed on the pump cover (200). When the pump cover (200) is closed on the pump body (100), the pump cover (200) can rotate relative to the pump body (100) in the forward or reverse direction and engage or disengage the first snap-fit ​​structure and the second snap-fit ​​structure together.

2. The booster pump housing assembly according to claim 1, characterized in that, The number of the snap-fit ​​components is at least two sets, and all the snap-fit ​​components are arranged at circumferential intervals along the pump body (100) and the pump cover (200).

3. The booster pump housing assembly according to claim 1, characterized in that, The first snap-fit ​​structure is a snap-fit ​​groove (110), and the second snap-fit ​​structure is a snap-fit ​​block (210), or the first snap-fit ​​structure is a snap-fit ​​block (210), and the second snap-fit ​​structure is a snap-fit ​​groove (110). One end of the snap-fit ​​groove (110) has an opening (111). When the pump cover (200) rotates in the forward or reverse direction relative to the pump body (100), the snap-fit ​​block (210) can pass through the opening (111) and be fitted into the snap-fit ​​groove (110) or disengage from the snap-fit ​​groove (110).

4. The booster pump housing assembly according to claim 3, characterized in that, The slot (110) has a limiting part (112) inside; The snap-fit ​​block (210) passes through the opening (111) and is fitted into the snap-fit ​​groove (110), and the snap-fit ​​block (210) can abut against the limiting part (112).

5. The booster pump housing assembly according to claim 3, characterized in that, The snap-fit ​​groove (110) has an observation window (113) on at least a portion of its sidewall that is adjacent to or opposite to the opening (111).

6. The booster pump housing assembly according to claim 1, characterized in that, A sealing ring is provided between the pump cover (200) and the pump body (100). When the pump cover (200) is closed on the pump body (100), the sealing ring can seal the gap between the pump cover (200) and the pump body (100).

7. The booster pump housing assembly according to claim 6, characterized in that, The outer wall of the pump body (100) has an annular groove (120), and the sealing ring is fitted into the annular groove (120).

8. The booster pump housing assembly according to claim 1, characterized in that, The pump cover (200) has an inlet pipe section (220) and an outlet pipe section (230) connecting the interior and exterior of the pump cover (200). The inlet pipe section (220) is arranged along the axial direction of the pump cover (200), and the outlet pipe section (230) is arranged along the circumferential direction of the pump cover (200).

9. The booster pump housing assembly according to claim 8, characterized in that, The inner diameter of the inlet pipe section (220) is larger than the inner diameter of the outlet pipe section (230).

10. A booster pump, characterized in that, include: A booster pump body, wherein the booster pump body is configured with a booster pump housing assembly as described in any one of claims 1 to 9.

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