Booster pumps that facilitate water injection and air venting

Abstract

This utility model relates to a booster pump that facilitates water injection and venting. It includes a pump casing with an inlet channel, an outlet channel, and a chamber connecting the inlet and outlet channels. The pump casing has a water inlet connected to the inlet channel, located on the top wall of the casing and also serving as a vent. The outlet channel extends vertically and its upper end penetrates the top wall of the pump casing. The inlet channel extends horizontally and one end penetrates the side wall of the pump casing. The inlet and outlet channels are perpendicular and connected by the chamber. This utility model eliminates the need to inject water through the inlet or outlet channels, thus avoiding the need to remove the connecting pipes. This makes water injection more convenient. Furthermore, when not injecting water, the inlet can also be used as a vent to expel air from the pump casing, ensuring the booster pump's performance.

Description

Technical Field

[0001] This utility model relates to the field of booster pump technology, specifically to a booster pump that facilitates water injection and air venting. Background Technology

[0002] A canned motor pump is a device that uses a high-speed rotating impeller to increase the pressure of a liquid by applying energy through centrifugal force. For example, the Chinese utility model patent disclosed in patent application number CN201921712032.9 (publication number CN210769355U), entitled "A Canned Motor Pump with Smoother Impeller Rotation," includes a lower casing with an inlet channel, an outlet channel, and a water inlet connecting the inlet and outlet channels; an upper casing located above and connected to the lower casing; a shielding sleeve disposed within the upper casing; a fixed shaft with its first end mounted on the shielding sleeve; and a bracket inserted into the water inlet of the lower casing, wherein a limiting structure restricting circumferential rotation between the outer wall of the bracket and the inner wall of the water inlet is provided, and a receiving groove is provided at the top of the bracket for the second end of the fixed shaft to be installed therein.

[0003] When using it for the first time, the lower casing needs to be filled with water so that the impeller can continuously draw water from the inlet channel into the lower casing. Since the booster pump does not have a water inlet, water is usually added through the inlet channel or the outlet channel. The inlet channel is connected to an inlet pipe, and the outlet channel is connected to an outlet pipe. When adding water, the inlet or outlet pipe needs to be removed first, and then reinstalled after adding water, which is quite troublesome.

[0004] In addition, the presence of gas in the booster pump will also affect its performance. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a booster pump that facilitates water injection and air venting, based on 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 booster pump that facilitates water injection and venting, including a pump casing, wherein the pump casing is provided with an inlet channel, an outlet channel, and a chamber connecting the inlet channel and the outlet channel, characterized in that the pump casing is provided with a water inlet connected to the inlet channel, the water inlet is located on the top wall of the pump casing and also serves as an venting port, the outlet channel extends vertically and its upper end penetrates the top wall of the pump casing, the inlet channel extends horizontally and one end penetrates the side wall of the pump casing, the inlet channel and the outlet channel are perpendicular to each other and are connected by the chamber.

[0007] In order to draw water from the inlet channel to the outlet channel, the chamber is equipped with an impeller, the axis of which is parallel to or coincides with the axis of the inlet channel.

[0008] To facilitate the rapid injection of water into the pump casing, the water inlet is connected to the water inlet channel via a vertically extending water inlet channel. The water inlet channel is straight, which shortens the water flow path.

[0009] To prevent debris from entering the pump casing through the water inlet, a plug is detachably installed in the water inlet. The plug is removed when water needs to be added or air needs to be vented, and installed when neither is required. The plug can be threaded into the water inlet.

[0010] To prevent damage to the pump casing, the pump casing is installed inside an outer casing, which serves to protect the pump casing.

[0011] When the booster pump is working, the pump casing is prone to vibration, which is then transmitted to the outer shell and generates noise. A column is provided 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 shell 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] Compared with the prior art, the advantages of this utility model are as follows: By specially setting a water inlet on the pump casing, water does not need to be injected from the port of the inlet or outlet channel, and there is no need to remove the pipe connected to the inlet or outlet channel, making water injection more convenient. In addition, when not injecting water, the water inlet can also be used as an exhaust port to allow air in the pump casing to be discharged, ensuring the working performance of the booster pump. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure without the upper shell;

[0018] Figure 3 for Figure 2 A sectional view;

[0019] Figure 4 for Figure 3 Enlarged view of point A;

[0020] Figure 5 for Figure 4 A schematic diagram of the sleeve structure in the middle;

[0021] Figure 6 for Figure 4 A schematic diagram of the flexible sleeve in the middle;

[0022] Figure 7 for Figure 2 A cross-sectional view from another direction. 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 1-7 As shown, the booster pump of this preferred embodiment, which facilitates water injection and venting, includes a pump casing 1. The pump casing 1 is provided with an inlet channel 11, an outlet channel 12, and a chamber 13 connecting the inlet channel 11 and the outlet channel 12. The pump casing 1 is provided with a water inlet 14 connected to the inlet channel 11. The water inlet 14 is located on the top wall of the pump casing 1 and also serves as a venting port. By specially providing a water inlet 14 for water injection on the pump casing 1, it is not necessary to inject water from the port of the inlet channel 11 or the port of the outlet channel 12, and it is also not necessary to remove the pipe connected to the inlet channel 11 or the outlet channel 12. Water injection is more convenient. Furthermore, when not injecting water, the water inlet 14 can also be used as a venting port to allow air in the pump casing 1 to be discharged, ensuring the working performance of the booster pump.

[0027] Water inlet 14 is connected to water inlet channel 11 via vertically extending water inlet channel 15. Water inlet channel 15 is straight, which makes the water flow path short.

[0028] The outlet channel 12 extends vertically and its upper end penetrates the top wall of the pump casing 1. The inlet channel 11 extends horizontally and one end penetrates the side wall of the pump casing 1. The inlet channel 11 and the outlet channel 12 are perpendicular to each other and are connected by a chamber 13. The chamber 13 is equipped with an impeller 2 for drawing water from the inlet channel 11 to the outlet channel 12. The impeller 2 adopts the existing structure of a canned motor pump, and the axis of the impeller 2 is parallel to or coincides with the axis of the inlet channel 11. The overall structure of the inlet channel 11, the outlet channel 12, and the chamber 13 is compact, and the water flow path is short, which not only facilitates rapid filling with water but also improves the pumping performance of the booster pump.

[0029] To prevent debris from entering the pump casing 1 through the water inlet 14, a plug 3 is detachably installed in the water inlet 14. When water needs to be added or air needs to be vented, the plug 3 is removed; when water needs to be added or air needs to be vented, the plug 3 is installed. The plug 3 can be threaded into the water inlet 14.

[0030] Pump housing 1 is installed inside outer casing 4, which protects pump housing 1. When the booster pump is operating, pump housing 1 is prone to vibration, which is transmitted to outer casing 4, generating noise. A column 5 is provided on the outer wall of pump housing 1, and a flexible sleeve 6 is fitted onto the column 5. A sleeve 7 is fitted outside the flexible sleeve 6, and the sleeve 7 is connected to the inner wall of outer casing 4 via a first connecting member. In this way, when the booster pump is operating, the vibration of pump housing 1 is partially reduced by the flexible sleeve 6, thereby reducing noise. In this embodiment, the first connecting member is a screw, which is inexpensive and readily available, and the flexible sleeve 6 is a rubber sleeve, which has good vibration damping effect.

[0031] The inner wall of the outer casing 4 is provided with a vertically extending mounting post 41, the post body 5 extends laterally, the sleeve 7 is located at the top of the mounting post 41, and the sleeve 7 is provided with a connecting piece 71 for connecting to the mounting post 41. The connecting piece 71 and the mounting post 41 are connected by a first connector.

[0032] In addition, multiple ribs 72 are provided on the inner peripheral wall of the sleeve 7 at intervals along its circumference. Each rib 72 extends along the axial direction of the sleeve 7. When the flexible sleeve 6 is inserted into the sleeve 7, the outer peripheral wall of the flexible sleeve 6 abuts against the ribs 72. Thus, the gap between two adjacent ribs 72 is the gap between the flexible sleeve 6 and the sleeve 7. There will be air in the gap, and the air will play a role in noise reduction.

[0033] One end of the flexible sleeve 6 is open for the insertion of the column 5, and the other end of the flexible sleeve 6 is closed. The end face of the closed end is provided with a protrusion 61. When the flexible sleeve 6 is inserted into the sleeve 7, the protrusion 61 abuts against the inner wall surface of the sleeve 7. In this way, there is also a gap between the end face of the closed end of the flexible sleeve 6 and the inner wall surface of the sleeve 7. The air in the gap can also play a role in noise reduction.

[0034] In this embodiment, there are at least two columns 5, and correspondingly, there are at least two sleeves 7 and flexible sleeves 6. This allows for multi-point connection between the pump housing 1 and the outer shell 4, resulting in good connection stability. Furthermore, each column 5 is fitted with a flexible sleeve 6 that can reduce vibration, thus achieving good vibration reduction and noise reduction effects.

[0035] In this embodiment, the outer shell 4 is formed by fitting an upper shell 4a and a lower shell 4b together. The upper shell 4a is provided with a vertically extending first connecting post, and the lower shell 4b is provided with a vertically extending second connecting post 42. The first connecting post and the second connecting post 42 are connected by a second connector. In this way, the pump housing 1 can be installed in the upper shell 4a or the lower shell 4b first, and then the upper shell 4a and the lower shell 4b can be connected together.

[0036] The lower shell 4b is provided with vertically extending reinforcing ribs 43 to improve the strength of the lower shell.

[0037] The reinforcing rib 43 and the second connecting post 42 are located on both sides of the sleeve 7, and both the reinforcing rib 43 and the second connecting post 42 are set adjacent to the sleeve 7, which plays a certain role in limiting the sleeve 7. It can be seen that the reinforcing rib 43 serves two purposes: it can enhance the strength of the lower shell and limit the sleeve 7. The second connecting post 42 serves two purposes: it can connect the first connecting post and limit the sleeve 7.

Claims

1. A booster pump for facilitating water injection and venting, comprising a pump casing (1), wherein the pump casing (1) is provided with an inlet channel (11), an outlet channel (12), and a chamber (13) connecting the inlet channel (11) and the outlet channel (12), characterized in that, The pump casing (1) is provided with a water inlet (14) that is connected to the water inlet channel (11). The water inlet (14) is located on the top wall of the pump casing (1) and also serves as an exhaust port. The water outlet channel (12) extends vertically and its upper end penetrates the top wall of the pump casing (1). The water inlet channel (11) extends horizontally and one end penetrates the side wall of the pump casing (1). The water inlet channel (11) and the water outlet channel (12) are perpendicular to each other and are connected by a chamber (13).

2. The booster pump for facilitating water injection and venting according to claim 1, wherein: The water inlet (14) is connected to the water inlet channel via a vertically extending water inlet channel (15).

3. The booster pump for facilitating water injection and venting of claim 1, wherein: A plug (3) is detachably installed in the water inlet (14).

4. The booster pump for facilitating water injection and venting of claim 1, wherein: The chamber (13) is provided with an impeller (2), the axis of which is parallel to or coincides with the axis of the water inlet channel (11).

5. The booster pump for facilitating water injection and venting according to any one of claims 1 to 4, characterized in that: The pump housing (1) is installed in the outer casing (4).

6. The booster pump for facilitating water injection and venting of claim 5, wherein: A column (5) is provided on the outer wall of the pump casing (1), and a flexible sleeve (6) is fitted on the column (5). A sleeve (7) is fitted on the outside of the flexible sleeve (6), and the sleeve (7) is connected to the inner wall of the outer casing (4) through a first connector.

7. The booster pump for facilitating water injection and venting of claim 6, wherein: The inner wall of the outer shell (4) is provided with a vertically extending mounting post (41), the post (5) extends laterally, the sleeve (7) is located at the top of the mounting post (41), the sleeve (7) is provided with a connecting piece (71) for connecting with the mounting post (41), and the connecting piece (71) and the mounting post (41) are connected by the first connector.

8. The booster pump for facilitating water injection and venting of claim 6, wherein: The inner circumferential wall of the sleeve (7) is provided with a plurality of ribs (72) spaced apart along its circumference. Each rib (72) extends along the axial direction of the sleeve (7). When the flexible sleeve (6) is inserted into the sleeve (7), the outer circumferential wall of the flexible sleeve (6) abuts against the ribs (72).

9. The booster pump for facilitating water injection and venting according to claim 6, characterized in that: One end of the flexible sleeve (6) is open for insertion of the column (5), and the other end of the flexible sleeve (6) is closed. A protrusion (61) is provided on the end face of the closed end. When the flexible sleeve (6) is inserted into the sleeve (7), the protrusion (61) abuts against the inner wall surface of the sleeve (7).

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