Dry reed mounting for shielded centrifugal booster pump

Abstract

This utility model relates to a reed switch mounting structure for a shielded centrifugal booster pump, including a flow switch, a valve core that can move axially along the valve seat to a first position or a second position; an elastic element acting on the valve core to keep the valve core moving towards the second position; a magnet disposed inside the valve core; a reed switch disposed on the side wall of the valve seat, cooperating with the magnet to control whether the motor of the shielded centrifugal booster pump starts; and a receiving box, in which a groove extending horizontally is provided on the outer peripheral wall of the valve seat, and the receiving box is partially detachably housed in the groove. A connecting plate is also connected to the top or bottom of the receiving box, and the connecting plate and the valve seat are detachably connected by a connector extending horizontally and perpendicular to the extension direction of the groove. By providing a receiving box separate from the valve body and detachably installing the reed switch in the receiving box, the maintenance and replacement of the reed switch can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of shielded pump technology, specifically to a reed switch mounting structure for a shielded centrifugal booster pump. Background Technology

[0002] A water pump is a device that uses the rotation of an electric motor to transport water. An automatic water pump is a water pump in which the water flow is automatically controlled. To achieve automatic control of the water pump, a flow switch is usually installed at the inlet or outlet of the pump body. For example, the Chinese utility model patent disclosed in patent application number CN201922482540.9 (publication number CN211449093U) entitled "Shielded Centrifugal Booster Pump" includes a valve seat with a flow switch inside; a pump casing including a pipe body, the other end of which is connected to the valve seat; a first guide cylinder and a second guide cylinder, both open at both ends, spaced axially inside the valve seat; a flow switch including a valve stem, which can move axially along the valve seat to a first position or a second position, the valve stem being movably inserted into the first guide cylinder and the second guide cylinder; a blocking part formed on the peripheral wall of the valve stem and extending radially along the valve stem, the blocking part blocking the first guide cylinder when the valve stem is in the first position, and opening the first guide cylinder when the valve stem is in the second position; an elastic element acting on the valve stem to keep the valve stem tending to move towards the first position; a magnet disposed inside the valve stem; and a reed switch disposed on the side wall of the valve seat, cooperating with the magnet to control whether the motor starts or not.

[0003] The valve stem has a recess for housing a magnet, thus preventing the magnet from being directly exposed to the fluid. A reed switch is located in a mounting hole on the outer wall of the valve seat, and the reed switch cooperates with the magnet to control whether the motor starts or stops.

[0004] As can be seen from the figure, the mounting hole on the valve seat of this patent is directly opened on the valve seat. If water leaks between the valve seat and the pipe body, it can easily damage the reed switch. Furthermore, this patent does not disclose whether the reed switch can be disassembled. If the reed switch cannot be disassembled, a failure of the reed switch will cause the entire booster pump to be scrapped, resulting in high costs.

[0005] In addition, the patent also requires the installation of a first guide cylinder to enable the flow switch to control the flow of water in the pump casing, which involves a large number of components. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a reed switch mounting structure for a shielded centrifugal booster pump with easy reed switch replacement, in light of the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a reed switch mounting structure for a shielded centrifugal booster pump, including...

[0008] The valve seat is tubular and contains a flow switch.

[0009] The pump casing includes a housing and a pipe connected to the housing for water to enter or exit the housing, wherein the outlet of the pipe is connected to a valve seat;

[0010] The flow switch, located inside the valve seat, includes...

[0011] The valve core can move axially along the valve seat to a first position or a second position. When the valve core is in the first position, the valve core opens the outlet. When the valve core is in the second position, the valve core closes the outlet.

[0012] The elastic element acts on the valve core, causing the valve core to always tend to move towards the second position;

[0013] A magnet is located inside the valve core;

[0014] A reed switch, located on the side wall of the valve seat, works in conjunction with a magnet to control whether the motor of the shielded centrifugal booster pump starts or not;

[0015] The feature is that it further includes a receiving box into which the reed switch can be detachably housed, and the outer peripheral wall of the valve seat is provided with a groove extending in a horizontal direction. The receiving box is partially detachably housed in the groove. The top or bottom of the receiving box is also connected to a connecting plate. The connecting plate and the valve seat are detachably connected by a connecting member. The connecting member extends in a horizontal direction, and the extension direction of the connecting member is perpendicular to the extension direction of the groove.

[0016] To facilitate the installation of the receiving box on the valve seat, the connecting plate is provided with a sleeve extending along the extension direction of the connector. The outer wall of the valve seat is provided with a connecting post that can be inserted into the sleeve. The sleeve and the connecting post are detachably connected via the connector. During installation, the receiving box is first partially embedded in the groove, and the connecting post is inserted into the sleeve, thus pre-positioning the receiving box on the valve seat. Then, the sleeve and the connecting post are connected via the connector, thus securely installing the receiving box onto the valve seat.

[0017] Preferably, the connector is a screw, which is inexpensive and readily available, and facilitates the assembly and disassembly of the sleeve and connecting post.

[0018] Preferably, the sleeve and the receiving box are connected by reinforcing ribs to prevent breakage between the sleeve and the receiving box.

[0019] The reed switch can be detachably installed in the housing in various ways, such as by screw connection. Alternatively, the housing can have slots on opposite side walls, with the reed switch mounted on a mounting plate whose opposite sides are detachably inserted into the two slots. Thus, the mounting plate can be installed in the housing by inserting and removing it.

[0020] Preferably, one end of the valve seat is fitted onto the outlet of the pipe body, and the valve core can be inserted into the outlet to block it. Furthermore, the valve core can move away from the outlet under the action of water flow to open it. In this way, the valve core directly engages with the outlet to control the flow of water, eliminating the need for other intermediate components, resulting in fewer parts and a simplified structure.

[0021] Preferably, a sealing ring is provided between the valve seat and the pipe body to prevent water leakage between the valve seat and the pipe body; the valve seat and the pipe body are also connected by screws, the screws extending along the insertion direction of the valve seat and the pipe body, and the deformation of the sealing ring is adjusted by adjusting the connection depth of the screws to adjust the sealing performance between the valve seat and the pipe body.

[0022] Compared with the prior art, the advantages of this utility model are as follows: By installing the reed switch in the receiving box, which can be detachably installed on the valve seat, if the reed switch fails, the receiving box can be removed, the reed switch can be removed, a new reed switch can be replaced, and then it can be reinstalled on the valve seat without causing the entire shielded centrifugal booster pump to be scrapped.

[0023] In addition, the valve seat is provided with a groove, the extension direction of which is perpendicular to the extension direction of the connector. The groove and the connector position the housing box in different directions to ensure that the housing box is firmly assembled on the valve seat. Since the housing box is partially detachably embedded in the groove, the connecting plate can be detachably installed on the valve seat through the connector, so that the housing box can be removed from the valve seat.

[0024] In summary, this utility model achieves the maintenance and replacement of the reed switch by setting a receiving box that is separate from the valve body and detachably installing the reed switch in the receiving box. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 Enlarged view of point A;

[0027] Figure 3 for Figure 2 A structural diagram of the housing and connecting plate;

[0028] Figure 4 for Figure 1 A sectional view;

[0029] Figure 5 for Figure 1 Another sectional view. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] like Figures 1-5 As shown, the reed switch mounting structure of the shielded centrifugal booster pump in this preferred embodiment includes a valve seat 1, a pump casing, and a flow switch. The valve seat 1 is tubular and has a flow switch inside. The pump casing includes a housing 2 and a pipe 3 connected to the housing 2 for water to enter or exit the housing 2. The outlet 31 of the pipe 3 is connected to the valve seat 1.

[0034] A flow switch is located inside the valve seat 1. The flow switch includes a valve core 41, an elastic element 42, a magnet 40, and a reed switch 43. The valve core 41 can move axially along the valve seat 1 to a first position or a second position. When the valve core 41 is in the first position, the valve core 41 opens the outlet 31. When the valve core 41 is in the second position, the valve core 41 closes the outlet 31. The elastic element 42 acts on the valve core 41, causing the valve core 41 to always tend to move towards the second position. The magnet 40 is located inside the valve core 41, and the reed switch 43 is located on the side wall of the valve seat 1, cooperating with the magnet 40 to control whether the motor of the shielded centrifugal booster pump starts.

[0035] The above is the prior art, and the patents in the background section can be consulted. It will not be elaborated further here.

[0036] The reed switch mounting structure of the shielded centrifugal booster pump in this preferred embodiment also includes a receiving box 5 in which the reed switch 43 can be detachably housed. The outer peripheral wall of the valve seat 1 is provided with a groove 11 extending in the horizontal direction. The receiving box 5 is partially detachably housed in the groove 11. A connecting plate 6 is also connected to the top or bottom of the receiving box 5. The connecting plate 6 and the valve seat 1 are detachably connected by a connector. The connector extends in the horizontal direction, and the extension direction of the connector is perpendicular to the extension direction of the groove 11.

[0037] The connecting plate 6 is provided with a sleeve 61 extending along the extension direction of the connector. The sleeve 61 and the receiving box 5 are connected by a reinforcing rib 62 to prevent breakage between the sleeve 61 and the receiving box 5. The outer wall of the valve seat 1 is provided with a connecting post 12 that can be inserted into the sleeve 61. The sleeve 61 and the connecting post 12 are detachably connected by a connector. During installation, the receiving box 5 is first partially embedded in the groove 11, and the connecting post 12 is inserted into the sleeve 61 to pre-position the receiving box 5 on the valve seat 1. Then, the sleeve 61 and the connecting post 12 are connected by the connector to securely install the receiving box 5 on the valve seat 1. In this embodiment, the connector is a screw, which is inexpensive and readily available, and facilitates the disassembly and assembly of the sleeve 61 and the connecting post 12.

[0038] As can be seen from the above, the valve seat 1 is provided with a groove 11, the extension direction of the groove 11 is perpendicular to the extension direction of the connector. The groove 11 and the connector position the receiving box 5 in different directions, ensuring that the receiving box 5 is firmly assembled on the valve seat 1. Since the receiving box 5 is partially detachably embedded in the groove 11, and the connecting plate 6 is detachably installed on the valve seat 1 through the connector, the receiving box 5 can be removed from the valve seat 1. In this embodiment, by installing the reed switch 43 in the receiving box 5, the receiving box 5 is detachably installed on the valve seat 1. In this way, if the reed switch 43 fails, the receiving box 5 can be removed, the reed switch 43 can be removed, a new reed switch 43 can be replaced, and then it can be reinstalled on the valve seat 1 without causing the entire canned centrifugal booster pump to be scrapped.

[0039] The reed switch 43 can be detachably installed in the housing 5 in the following manner: slots 51 are provided on two opposite side walls of the housing 5, the reed switch 43 is mounted on the mounting plate 7, and the two opposite sides of the mounting plate 7 are detachably inserted into the two slots 51 respectively. In this way, the mounting plate 7 can be installed in the housing 5 by inserting and removing the mounting plate 7.

[0040] In this embodiment, as Figure 4As shown, one end of the valve seat 1 is fitted onto the outlet 31 of the pipe body 3. The valve core 41 can be inserted into the outlet 31 to block it, and the valve core 41 can move away from the outlet 31 under the action of water flow to open it. In this way, the valve core 41 directly cooperates with the outlet 31 to realize the opening and closing of the water flow, without the need for other intermediate parts, resulting in fewer components and a simplified structure.

[0041] In addition, a sealing ring 13 is provided between the valve seat 1 and the pipe body 3 to prevent water leakage between the valve seat 1 and the pipe body 3; the valve seat 1 and the pipe body 3 are also connected by screws, which extend along the insertion direction of the valve seat 1 and the pipe body 3. By adjusting the connection depth of the screws, the deformation of the sealing ring 13 is adjusted to regulate the sealing performance between the valve seat 1 and the pipe body 3.

Claims

1. A reed switch mounting structure for a shielded centrifugal booster pump, comprising: The valve seat (1) is tubular and contains a flow switch. The pump casing includes a housing (2) and a pipe (3) connected to the housing (2) for water to enter or exit the housing (2), wherein the outlet (31) of the pipe (3) is connected to the valve seat (1); A flow switch, located within the valve seat (1), includes... The valve core (41) can move axially along the valve seat (1) to a first position or a second position. When the valve core (41) is in the first position, the valve core (41) opens the outlet (31). When the valve core (41) is in the second position, the valve core (41) closes the outlet (31). The elastic element (42) acts on the valve core (41) to keep the valve core (41) moving toward the second position. A magnet (40) is located inside the valve core (41); A reed switch (43) is located on the side wall of the valve seat (1) and works with a magnet (40) to control whether the motor of the shielded centrifugal booster pump starts or not. The feature is that it further includes a receiving box (5) in which the reed switch (43) can be detachably housed, and the outer peripheral wall of the valve seat (1) is provided with a groove (11) extending in the horizontal direction. The receiving box (5) is partially detachably housed in the groove (11). The top or bottom of the receiving box (5) is also connected to a connecting plate (6). The connecting plate (6) and the valve seat (1) are detachably connected by a connector. The connector extends in the horizontal direction, and the extension direction of the connector is perpendicular to the extension direction of the groove (11).

2. The shielded centrifugal booster pump dry reed mounting structure according to claim 1, characterized by: The connecting plate (6) is provided with a sleeve (61) extending along the extension direction of the connector, and the outer wall of the valve seat (1) is provided with a connecting post (12) that can be inserted into the sleeve (61). The sleeve (61) and the connecting post (12) are detachably connected through the connector.

3. The shielded centrifugal booster pump dry reed mounting structure according to claim 2, characterized by: The sleeve (61) and the accommodating box (5) are connected by a reinforcing rib (62).

4. The shielded centrifugal booster pump dry reed mounting structure according to claim 1, characterized by: The connector is a screw.

5. The shielded centrifugal booster pump dry reed mounting structure according to claim 1, characterized by: The accommodating box (5) has corresponding slots (51) on its two opposite side walls. The reed switch (43) is mounted on the mounting plate (7). The two opposite sides of the mounting plate (7) can be detachably inserted into the two slots (51).

6. The shielded centrifugal booster pump dry reed mounting structure according to any one of claims 1 to 5, characterized in that: One end of the valve seat (1) is fitted onto the outlet (31) of the pipe body (3). The valve core (41) can be inserted into the outlet (31) to block the outlet (31). The valve core (41) can move away from the outlet (31) under the action of water flow to open the outlet (31).

7. The shielded centrifugal booster pump dry reed mounting structure according to claim 6, characterized in that: A sealing ring (13) is provided between the valve seat (1) and the pipe body (3). The valve seat (1) and the pipe body (3) are also connected by screws, which extend along the insertion direction of the valve seat (1) and the pipe body (3).

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