A low-noise booster pump

Abstract

This utility model relates to a low-noise booster pump, including a housing and a pump casing disposed within the housing. The pump casing has a column on its outer wall surface, a flexible sleeve on the column, and a sleeve on the outside of the flexible sleeve. The sleeve is connected to the inner wall surface of the housing through a first connector. In this way, when the booster pump is working, the vibration of the pump casing will be partially reduced by the flexible sleeve, thereby reducing noise.

Description

Technical Field

[0001] This utility model relates to the field of booster pump technology, specifically to a low-noise booster pump. Background Technology

[0002] A fluid pump is a device that transports fluids using the rotation of an electric motor. An automatic fluid pump is a fluid pump in which the fluid is automatically controlled. In daily life, when using water in situations such as high-rise buildings or bathrooms, we often encounter problems such as insufficient water pressure and low water flow, resulting in a poor user experience, and even problems such as the malfunction of related equipment in the pipeline. For example, when using a gas water heater, we may encounter situations where the water flow is too weak and ignition fails. In such cases, it is necessary to use an automatic booster pump to automatically pressurize the pipeline system.

[0003] For example, the Chinese utility model patent disclosed in patent application number CN201922492607.7 (publication number CN211550090U) entitled "Installation Structure of Control Connector and Shielded Centrifugal Booster Pump" includes a housing, a control connector, and a pump housing, as shown in the figure. The housing is hollow inside, and the control connector and pump housing are located inside the housing. The inlet pipe and the outlet pipe both pass through the housing. The outlet pipe is connected to the control connector, and the inlet pipe is connected to the pump housing. In order to facilitate the placement of the control connector and the pump housing inside the housing, the housing is formed by an upper shell and a lower shell.

[0004] When the booster pump is working, the pump casing is prone to vibration, which is then transmitted to the outer casing and generates noise. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a low-noise booster pump that can reduce vibration, in light of the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a low-noise booster pump, including a housing and a pump casing disposed in the housing, characterized in that a column is provided on the outer wall surface of the pump casing, a flexible sleeve is fitted on the column, a sleeve is fitted outside the flexible sleeve, and the sleeve is connected to the inner wall surface of the housing through a first connector.

[0007] To facilitate the connection between the sleeve and the outer shell, a vertically extending mounting post is provided on the inner wall surface of the outer shell. The post extends laterally, and the sleeve is located at the top of the mounting post. The sleeve is provided with a connecting piece for connecting with the mounting post. The connecting piece and the mounting post are connected through the first connecting member.

[0008] To further reduce noise, multiple ribs are provided on the inner circumferential wall of the sleeve at intervals along its circumference. Each rib extends along the axial direction of the sleeve. When the flexible sleeve is inserted into the sleeve, the outer circumferential wall of the flexible sleeve abuts against the ribs. Thus, the gap between two adjacent ribs is the gap between the flexible sleeve and the sleeve. There will be air in the gap, and the air will play a role in noise reduction.

[0009] To further reduce noise, one end of the flexible sleeve is open for insertion of the column, while the other end of the flexible sleeve is closed. The end face of the closed end is provided with a protrusion. When the flexible sleeve is inserted into the sleeve, the protrusion abuts against the inner wall of the sleeve. In this way, there is also a gap between the end face of the closed end of the flexible sleeve and the inner wall of the sleeve, and the air in the gap can also play a role in noise reduction.

[0010] Preferably, the first connector is a screw, which is inexpensive and readily available.

[0011] Preferably, the flexible sleeve is a rubber sleeve, which has a good vibration damping effect.

[0012] Preferably, there are at least two columns, and correspondingly, there are at least two sleeves and at least two flexible sleeves. This allows for multi-point connection between the pump casing and the outer casing, resulting in good connection stability. Furthermore, each column is fitted with a flexible sleeve that can dampen vibrations, providing good vibration reduction and noise reduction effects.

[0013] To facilitate the installation of the pump casing within the outer casing, the outer casing is composed of an upper casing and a lower casing joined together. The upper casing has a vertically extending first connecting post, and the lower casing has a vertically extending second connecting post. The first and second connecting posts are connected by a second connector. This allows the pump casing to be installed in either the upper or lower casing first, and then the upper and lower casings to be connected.

[0014] Preferably, the lower shell is provided with vertically extending reinforcing ribs to improve the strength of the lower shell.

[0015] Preferably, the reinforcing rib and the second connecting post are located on both sides of the sleeve, and both the reinforcing rib and the second connecting post are arranged adjacent to the sleeve, which plays a certain limiting role for the sleeve. It can be seen that the reinforcing rib serves two purposes, which is to enhance the strength of the lower shell and to limit the sleeve. The second connecting post serves two purposes, which is to connect the first connecting post and to limit the sleeve.

[0016] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a column on the outer wall of the pump casing, and a flexible sleeve is fitted on the column. A sleeve is fitted on the outside of the flexible sleeve, and the sleeve is connected to the inner wall of the outer casing through a first connector. In this way, when the booster pump is working, the vibration of the pump casing will be reduced by the flexible sleeve, thereby reducing noise. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure without the upper shell;

[0019] Figure 3 for Figure 2 A sectional view;

[0020] Figure 4 for Figure 3 Enlarged view of point A;

[0021] Figure 5 for Figure 4 A schematic diagram of the sleeve structure in the middle;

[0022] Figure 6 for Figure 4 A schematic diagram of the flexible sleeve in the diagram. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be understood that, unless otherwise stated, "multiple" means two or more, and the terms "upper," "lower," "left," "right," "top," "bottom," "front," "rear," etc., indicate the orientation or positional relationship based on the direction or positional relationship shown in the 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.

[0025] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an adhesive connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.

[0026] like Figures 1-6As shown, the low-noise booster pump of this preferred embodiment includes a housing 1 and a pump casing 2 disposed within the housing 1. A column 21 is provided on the outer wall surface of the pump casing 2, and a flexible sleeve 3 is fitted on the column 21. A sleeve 4 is fitted outside the flexible sleeve 3, and the sleeve 4 is connected to the inner wall surface of the housing 1 through a first connector. In this way, when the booster pump is working, the vibration of the pump casing 2 is partially reduced by the flexible sleeve 3, thereby reducing noise. In this embodiment, the first connector is a screw, which is inexpensive and readily available, and the flexible sleeve 3 is a rubber sleeve, which has a good vibration damping effect.

[0027] The inner wall of the outer casing 1 is provided with a vertically extending mounting post 11, the post body 21 extends laterally, the sleeve 4 is located at the top of the mounting post 11, and the sleeve 4 is provided with a connecting piece 41 for connecting to the mounting post 11. The connecting piece 41 and the mounting post 11 are connected by a first connector.

[0028] In addition, multiple ribs 42 are provided on the inner peripheral wall of the sleeve 4 at intervals along its circumference. Each rib 42 extends along the axial direction of the sleeve 4. When the flexible sleeve 3 is inserted into the sleeve 4, the outer peripheral wall of the flexible sleeve 3 abuts against the ribs 42. Thus, the gap between two adjacent ribs 42 is the gap between the flexible sleeve 3 and the sleeve 4. There will be air in the gap, and the air will play a role in noise reduction.

[0029] One end of the flexible sleeve 3 is open for the insertion of the column 21, and the other end of the flexible sleeve 3 is closed. The end face of the closed end is provided with a protrusion 31. When the flexible sleeve 3 is inserted into the sleeve 4, the protrusion 31 abuts against the inner wall surface of the sleeve 4. In this way, there is also a gap between the end face of the closed end of the flexible sleeve 3 and the inner wall surface of the sleeve 4. The air in the gap can also play a role in noise reduction.

[0030] In this embodiment, there are at least two columns 21, and correspondingly, there are at least two sleeves 4 and flexible sleeves 3. This allows for multi-point connection between the pump housing 2 and the outer shell 1, resulting in good connection stability. Furthermore, each column 21 is fitted with a flexible sleeve 3 that can reduce vibration, thus achieving good vibration reduction and noise reduction effects.

[0031] In this embodiment, the outer shell 1 is formed by fitting an upper shell 1a and a lower shell 1b together. The upper shell 1a is provided with a vertically extending first connecting post, and the lower shell 1b is provided with a vertically extending second connecting post 13. The first connecting post and the second connecting post 13 are connected by a second connector. In this way, the pump housing 2 can be installed in the upper shell 1a or the lower shell 1b first, and then the upper shell 1a and the lower shell 1b can be connected.

[0032] The lower shell 1b is provided with vertically extending reinforcing ribs 14 to improve the strength of the lower shell 1b.

[0033] The reinforcing rib 14 and the second connecting post 13 are located on both sides of the sleeve 4, and both the reinforcing rib 14 and the second connecting post 13 are arranged adjacent to the sleeve 4, which plays a certain role in limiting the sleeve 4. It can be seen that the reinforcing rib 14 serves two purposes: it can enhance the strength of the lower shell 1b and limit the sleeve 4. The second connecting post 13 serves two purposes: it can connect the first connecting post and limit the sleeve 4.

Claims

1. A low noise booster pump comprising a housing (1) and a pump casing (2) arranged in the housing (1), characterized in that, A column (21) is provided on the outer wall of the pump casing (2), and a flexible sleeve (3) is fitted on the column (21). A sleeve (4) is fitted on the outside of the flexible sleeve (3), and the sleeve (4) is connected to the inner wall of the outer casing (1) through a first connector.

2. The booster pump according to claim 1, characterized in that: The inner wall of the outer casing (1) is provided with a vertically extending mounting post (11), the post (21) extends laterally, the sleeve (4) is located at the top of the mounting post (11), the sleeve (4) is provided with a connecting piece (41) for connecting with the mounting post (11), and the connecting piece (41) and the mounting post (11) are connected by the first connector.

3. The booster pump according to claim 1, characterized in that: The inner circumferential wall of the sleeve (4) is provided with a plurality of ribs (42) spaced apart along its circumference. Each rib (42) extends along the axial direction of the sleeve (4). When the flexible sleeve (3) is inserted into the sleeve (4), the outer circumferential wall of the flexible sleeve (3) abuts against the ribs (42).

4. The booster pump according to claim 1, characterized in that: One end of the flexible sleeve (3) is open for the insertion of the column (21), and the other end of the flexible sleeve (3) is closed. A protrusion (31) is provided on the end face of the closed end. When the flexible sleeve (3) is inserted into the sleeve (4), the protrusion (31) abuts against the inner wall surface of the sleeve (4).

5. The booster pump according to claim 1, characterized in that: The first connecting component is a screw.

6. The booster pump according to claim 1, characterized in that: The flexible sleeve (3) is a rubber sleeve.

7. The booster pump according to any one of claims 1 to 6, characterized in that: There are at least two of the column (21), and correspondingly, there are at least two of the sleeve (4) and the flexible sleeve (3).

8. The booster pump according to any one of claims 1 to 6, characterized in that: The outer shell (1) is formed by upper shell (1a) and lower shell (1b) joined together. The upper shell (1a) is provided with a first connecting post extending vertically, and the lower shell (1b) is provided with a second connecting post (13) extending vertically. The first connecting post and the second connecting post (13) are connected by a second connector.

9. The booster pump according to claim 8, characterized in that: The lower shell (1b) is provided with vertically extending reinforcing ribs (14).

10. The booster pump according to claim 9, characterized in that: The reinforcing rib (14) and the second connecting post (13) are located on both sides of the sleeve (4), and the reinforcing rib (14) and the second connecting post (13) are both arranged adjacent to the sleeve (4).

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