Variable frequency water pump with anti-blocking function

Abstract

The utility model relates to the technical field of variable frequency water pumps, and discloses a variable frequency water pump with an anti-blocking function. The top of the middle shell and the bottom of the upper shell are arranged through bolts; the top of the lower shell and the bottom of the middle shell are arranged through bolts; and the anti-blocking assembly is mounted on the bottom surface of the lower shell. The anti-blocking assembly comprises an annular plate, wherein the inner wall of the annular plate and the outer wall of the lower end of the lower shell are fixedly installed; wherein the bottom surface of the annular plate is provided with an annular groove, and the inner wall of the annular groove is provided with a positioning opening; and the mounting ring is clamped in the annular groove in the bottom surface of the annular plate, and the mounting ring is connected with the mounting ring through a connecting part. According to the variable frequency water pump with the anti-blocking function, large impurities can be prevented from entering the pump body to cause blocking through the arranged anti-blocking cover body, the anti-blocking cover body can be conveniently detached through the arranged connecting component, small impurities in the pump body can be conveniently cleaned, and long-term accumulation and blocking are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to variable frequency water pump technical field, specifically is a variable frequency water pump with prevent blocking function. BACKGROUND

[0002] Variable frequency water pump refers to the water pump of variable frequency motor. The water pump changes the rotation speed and flow of the water pump by adjusting the frequency of the motor, thereby realizing the purpose of energy saving. The variable frequency water pump is usually used in combination with the variable frequency constant pressure water supply automatic control device to form the whole constant pressure water supply system. The system is composed of frequency converter (containing PID regulator), programmable time control switch, programmable controller (PLC), water level display controller, remote transmission pressure gauge, water level sensor and related electrical control components. These components work cooperatively to realize the automatic control of the water pump motor, so that the water supply system is automatically constant pressure and stable at the set pressure value.

[0003] The existing variable frequency water pump is usually equipped with a protective cover at the end to effectively block the intrusion of large impurities, which is designed to prevent the blockage phenomenon in the pump body. However, when installing these covers, the bolt fastening method is generally used, which is stable but causes the problem of inconvenient disassembly. Since the disassembly process is complicated and difficult to be done quickly, it leads to the problem that when the pump body needs to be cleaned of small impurities in an emergency, it cannot be handled in time and effectively. Therefore, how to optimize the installation method of the cover to realize quick disassembly and installation so as to quickly clean the small impurities in the pump body has become a problem to be solved in the current variable frequency water pump design.

[0004] Therefore, we propose a variable frequency water pump with anti-blocking function to solve the problem. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a variable frequency water pump with anti-blocking function, which solves the problem in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a variable frequency water pump with anti-blocking function, comprising:

[0007] Upper shell;

[0008] Middle shell, top part is installed and arranged on the bottom of the upper shell through bolts;

[0009] Lower shell, top part is installed and arranged on the bottom of the middle shell through bolts;

[0010] Anti-blocking assembly is installed on the bottom surface of the lower shell.

[0011] Preferably, the anti-blocking assembly comprises:

[0012] The inner wall of the annular plate is fixedly installed to the outer wall of the lower end of the lower shell.

[0013] The bottom surface of the annular plate has an annular groove, and the inner wall of the annular groove has a positioning port.

[0014] The mounting ring is snapped into the annular groove on the bottom surface of the annular plate, and the mounting ring is connected to the mounting plate through a connecting component;

[0015] The anti-clogging cover is fixedly installed on its top surface and the bottom surface of the mounting ring.

[0016] Preferably, the outer wall of the anti-clogging cover has a porous structure, the diameter of which is set according to actual needs. The anti-clogging cover facilitates the entry of large impurities into the pump body, causing blockage inside the pump body.

[0017] Preferably, the connecting component includes:

[0018] The positioning block is snapped into the positioning port, and the top surface of the bottom mounting ring of the positioning block is fixedly installed.

[0019] The bottom end of the pin is fixedly installed to the top surface of the positioning block, and the top end of the pin moves through the top of the inner wall of the positioning port and extends to the position above the annular plate.

[0020] An arc-shaped rod is fixedly installed at one end to the top surface of an annular plate, and a locking block is fixedly installed at the other end of the arc-shaped rod. The locking block is engaged with a slot opened on the outer wall of the pin.

[0021] Preferably, the upper end of the arc-shaped rod is made of an elastic sheet with bending properties, which facilitates the deformation of the arc-shaped rod under stress and its return to its original shape when no stress is applied, thus facilitating the locking operation of the locking block.

[0022] Preferably, the card block can be either conical or spherical.

[0023] This invention provides a variable frequency water pump with anti-clogging function. This variable frequency water pump with anti-clogging function has the following beneficial effects:

[0024] This variable frequency water pump with anti-clogging function can prevent large impurities from entering the pump body and causing blockage through the anti-clogging cover. The connecting parts can be easily disassembled to facilitate the cleaning of small impurities inside the pump body and avoid long-term accumulation and blockage. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a variable frequency water pump with anti-clogging function according to the present invention;

[0026] Figure 2This is a schematic diagram of the anti-clogging component structure in a variable frequency water pump with anti-clogging function according to the present invention;

[0027] Figure 3 This utility model relates to a variable frequency water pump with anti-clogging function. Figure 2 A schematic diagram of the local decomposition structure;

[0028] Figure 4 This is a half-sectional view of the annular plate in a variable frequency water pump with anti-clogging function according to the present invention.

[0029] Figure 5 This is an exploded view of the connecting components in a variable frequency water pump with anti-clogging function according to the present invention.

[0030] In the picture:

[0031] 1. Upper shell; 2. Middle shell; 3. Lower shell;

[0032] 4. Anti-clogging component; 41. Anti-clogging cover; 42. Mounting ring; 43. Annular plate; 44. Connecting component; 45. Annular groove; 46. Positioning port;

[0033] 441. Positioning block; 442. Pin; 443. Arc rod; 444. Locking block; 445. Locking groove. Detailed Implementation

[0034] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0035] A preferred embodiment of the variable frequency water pump with anti-clogging function provided by this utility model is, for example... Figures 1 to 5 As shown: A variable frequency water pump with anti-clogging function, comprising:

[0036] Upper shell 1;

[0037] The middle housing 2 is mounted to the bottom of the upper housing 1 by bolts at its top;

[0038] The lower housing 3 is mounted to the bottom of the middle housing 2 by bolts at the top;

[0039] The anti-clogging component 4 is installed on the bottom surface of the lower housing 3.

[0040] Anti-clogging component 4 includes:

[0041] The inner wall of the annular plate 43 is fixedly installed to the outer wall of the lower end of the lower housing 3;

[0042] The bottom surface of the annular plate 43 is provided with an annular groove 45, and the inner wall of the annular groove 45 is provided with a positioning port 46.

[0043] The mounting ring 42 is snapped into the annular groove 45 on the bottom surface of the annular plate 43, and the mounting ring 42 is connected to the mounting ring 42 via the connecting component 44.

[0044] Here, the connecting component 44 includes:

[0045] The positioning block 441 is snapped into the positioning port 46, and the bottom mounting ring 42 of the positioning block 441 is fixedly installed on the top surface.

[0046] The bottom end of the pin 442 is fixedly installed on the top surface of the positioning block 441, and the top end of the pin 442 moves through the top of the inner wall of the positioning port 46 and extends to the position above the annular plate 43.

[0047] The arc-shaped rod 443 is fixedly installed at one end to the top surface of the annular plate 43, and a locking block 444 is fixedly installed at the other end of the arc-shaped rod 443. The locking block 444 is engaged with the locking groove 445 opened on the outer wall of the pin 442.

[0048] The upper end of the arc-shaped rod 443 is made of an elastic sheet, which has bending properties. This makes it easy for the arc-shaped rod 443 to deform under force and return to its original shape when it is not under force, which facilitates the snapping operation of the locking block 444.

[0049] Block 444 is tapered.

[0050] The anti-clogging cover 41 is fixedly installed on its top surface and the bottom surface of the mounting ring 42. Here, the outer wall of the anti-clogging cover 41 has a multi-hole configuration, the diameter of which is set according to actual needs. The anti-clogging cover 41 allows large impurities to enter the pump body and cause blockage inside the pump body.

[0051] Working principle: Due to the design of the arc-shaped rod 443, especially its elastic bending performance, when it is necessary to disassemble the anti-clogging cover 41, simply pull the anti-clogging cover 41 downwards to move the pin 442 downwards. Since the pin 442 is engaged with the locking block 444, the locking block 444 will be subjected to a downward force. Because the locking block 444 is fixedly installed with the arc-shaped rod 443, the arc-shaped rod 443 will bend under force until the pin 442 disengages from the locking block 444. Finally, the anti-clogging cover 41 can be disassembled, which facilitates the cleaning of the pump body and avoids long-term accumulation and blockage of small impurities.

[0052] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification of this utility model can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.

Claims

1. A variable frequency water pump with anti-clogging function, characterized in that: include: Upper shell (1); The middle housing (2) is mounted on top of the upper housing (1) at the bottom by bolts; The lower housing (3) is mounted on top of the middle housing (2) via bolts; The anti-clogging component (4) is installed on the bottom surface of the lower housing (3).

2. A variable frequency water pump with anti-clogging function according to claim 1, characterized in that: The anti-clogging component (4) includes: The inner wall of the annular plate (43) is fixedly installed with the outer wall of the lower end of the lower shell (3); The bottom surface of the annular plate (43) is provided with an annular groove (45), and the inner wall of the annular groove (45) is provided with a positioning port (46). The mounting ring (42) is snapped into the annular groove (45) on the bottom surface of the annular plate (43), and the mounting ring (42) is connected to the mounting ring (42) through the connecting component (44); The top surface of the anti-clogging cover (41) is fixedly installed on the bottom surface of the mounting ring (42).

3. A variable frequency water pump with anti-clogging function according to claim 2, characterized in that: The outer wall of the anti-clogging cover (41) has a multi-hole configuration, and the hole diameter is set according to actual needs.

4. A variable frequency water pump with anti-clogging function according to claim 2, characterized in that: The connecting component (44) includes: The positioning block (441) is snapped into the positioning port (46), and the top surface of the bottom mounting ring (42) of the positioning block (441) is fixedly installed. The bottom end of the pin (442) is fixedly installed on the top surface of the positioning block (441), and the top end of the pin (442) moves through the top of the inner wall of the positioning port (46) and extends to the position above the annular plate (43). An arc-shaped rod (443) is fixedly installed at one end to the top surface of an annular plate (43), and a locking block (444) is fixedly installed at the other end of the arc-shaped rod (443). The locking block (444) is engaged with a slot (445) opened on the outer wall of the pin (442).

5. A variable frequency water pump with anti-clogging function according to claim 4, characterized in that: The upper end of the arc-shaped rod (443) is made of an elastic sheet, which has bending properties.

6. A variable frequency water pump with anti-clogging function according to claim 4, characterized in that: The card block (444) can be either conical or spherical.

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