A drain valve and a sweeper

Abstract

This utility model relates to the field of sweeping machine technology, specifically disclosing a drain valve and a sweeping machine. The drain valve includes a housing, a piston assembly, and a drive assembly. Using this drain valve, a transmission component is mounted on the housing, and the drive assembly is driven to the piston assembly via the transmission component. This allows the drive assembly to move the piston assembly reciprocally within the valve body cavity, thereby controlling the connection or disconnection of the inlet and outlet water outlets through the movement of the piston assembly, thus controlling the opening and closing of the drain valve. Unlike existing technologies where a motor directly drives the piston to open and close the valve, this drain valve's designed transmission component enables efficient power transmission, improving the working efficiency and service life of the drain valve. It effectively solves the problem of poor power transmission efficiency of motors in existing drain valves, which leads to poor working efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sweeping machine technology, and in particular to a drain valve and a sweeping machine. Background Technology

[0002] Current sweeping machines typically control wastewater discharge by opening and closing a drain valve. In these technologies, the drain valve is usually opened and closed by a piston driven directly by a motor. This results in poor power transmission efficiency of the motor, leading to poor working efficiency and short service life of the drain valve. Utility Model Content

[0003] The purpose of this utility model is to provide a drain valve and a sweeper to solve the problem that the power transmission efficiency of the motor in the drain valve is poor, resulting in poor working efficiency of the drain valve.

[0004] On one hand, this utility model provides a drain valve, which includes: a housing having an installation cavity, a valve body cavity, an inlet, and an outlet, wherein the inlet and the outlet are both connected to the valve body cavity; a piston assembly located within the valve body cavity; and a drive assembly including a transmission component and a drive component, wherein the transmission component is disposed on the housing, a portion of the transmission component is located within the installation cavity, and the drive component is drivenly connected to the piston assembly via the transmission component, wherein the drive component drives the piston assembly to reciprocate, thereby controlling the connection or disconnection of the inlet and the outlet through the piston assembly.

[0005] As an optional technical solution for the drain valve, the transmission component includes a planetary gearbox and a transmission structure. The planetary gearbox is mounted on the housing, and the transmission structure is located in the mounting cavity. The drive component is connected to the input end of the planetary gearbox, and the output end of the planetary gearbox is connected to the piston assembly through the transmission structure.

[0006] As an optional technical solution for the drain valve, the transmission structure includes a gear and a rack, the gear is connected to the output end of the planetary gearbox, the rack is connected to the piston assembly, and the gear and the rack mesh.

[0007] As an optional technical solution for the drain valve, the drain valve further includes a control board and a first sensor and a second sensor disposed on the control board. The rack has a baffle plate, the control board is disposed in the mounting cavity, and the first sensor and the second sensor are distributed at intervals along the movement direction of the rack. Both the first sensor and the second sensor can detect the position of the baffle plate, so as to determine the position of the piston assembly by detecting the position of the baffle plate.

[0008] As an optional technical solution for the drain valve, both the first sensor and the second sensor are optocouplers.

[0009] As an optional technical solution for the drain valve, the piston assembly includes a piston body and an elastic element. The piston body is located inside the valve body cavity and is connected to the rack. The elastic element is connected between the inner wall of the valve body cavity on the side away from the inlet and the piston body, and is configured to make the piston body always have a tendency to move away from the inner wall of the valve body cavity on the side away from the inlet.

[0010] As an optional technical solution for the drain valve, the piston assembly further includes a seal, which is disposed on the side of the valve body cavity opposite to the water inlet, and seals the mounting cavity and the valve body cavity.

[0011] As an optional technical solution for the drain valve, the piston body is a corrugated barrel piston.

[0012] As an optional technical solution for the drain valve, the housing includes a first outer shell, a second outer shell, and a connecting plate. The first outer shell is connected to one side of the connecting plate, and the second outer shell is connected to the other side of the connecting plate. The transmission component is connected to the bottom of the connecting plate. The first outer shell has the mounting cavity, and the second outer shell has the valve body cavity, the inlet, and the outlet.

[0013] On the other hand, this utility model provides a sweeper that includes the drain valve in any of the above solutions.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model provides a drain valve, which includes a housing, a piston assembly, and a drive assembly. The housing has a mounting cavity, a valve body cavity, an inlet, and an outlet. The drive assembly includes a transmission component and a drive component. Using this drain valve, the transmission component is mounted on the housing, and the drive component is connected to the piston assembly via the transmission component. This allows the drive component to move the piston assembly reciprocally within the valve body cavity, thereby controlling the connection or disconnection of the inlet and outlet through the movement of the piston assembly, thus controlling the opening and closing of the drain valve. Unlike existing technologies where a motor directly drives the piston to open and close the valve, this drain valve's transmission component effectively transmits power, improving the working efficiency and service life of the drain valve. It effectively solves the problem of poor power transmission efficiency of motors in existing drain valves, which leads to poor working efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the drain valve in an embodiment of this utility model;

[0017] Figure 2 This is a cross-sectional view of the drain valve in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the drain valve part in the embodiment of this utility model at a first angle;

[0019] Figure 4 This is a schematic diagram of the drain valve structure in an embodiment of the present invention from a second angle.

[0020] In the picture:

[0021] 1. Housing; 11. Mounting cavity; 12. Valve body cavity; 13. Inlet; 14. Outlet; 15. First outer shell; 16. Second outer shell; 17. Connecting plate;

[0022] 2. Piston assembly; 21. Piston body; 22. Elastic element; 23. Seal;

[0023] 3. Drive assembly; 31. Transmission component; 311. Planetary gearbox; 312. Transmission structure; 3121. Gear; 3122. Rack; 3123. Baffle; 32. Drive component;

[0024] 41. Control panel; 42. First sensor; 43. Second sensor. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] 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.

[0029] like Figures 1 to 4 As shown, this embodiment provides a drain valve, which includes a housing 1, a piston assembly 2, and a drive assembly 3. The housing 1 has a mounting cavity 11, a valve body cavity 12, an inlet 13, and an outlet 14, both of which are connected to the valve body cavity 12. The piston assembly 2 is located within the valve body cavity 12. The drive assembly 3 includes a transmission component 31 and a drive component 32. The transmission component 31 is mounted on the housing 1, with a portion of its structure located within the mounting cavity 11. The drive component 32 is connected to the piston assembly 2 via the transmission component 31, driving the piston assembly 2 to reciprocate, thereby controlling the connection or disconnection of the inlet 13 and the outlet 14 through the piston assembly 2.

[0030] The drain valve of this invention features a transmission component 31 mounted on the housing 1. A drive component 32 is connected to the piston assembly 2 via the transmission component 31. This allows the drive component 32 to move the piston assembly 2 reciprocally within the valve body cavity 12, thereby controlling the connection or disconnection of the inlet 13 and outlet 14 through the movement of the piston assembly 2, thus controlling the opening and closing of the drain valve. Unlike existing technologies where a motor directly drives the piston to open and close the valve, the transmission component 31 of this invention effectively transmits power, improving the working efficiency and service life of the drain valve. This effectively solves the problem of poor power transmission efficiency of motors in existing drain valves, which leads to poor working efficiency.

[0031] In some embodiments, the transmission component 31 includes a planetary gearbox 311 and a transmission structure 312. The planetary gearbox 311 is mounted on the housing 1, and the transmission structure 312 is located within the mounting cavity 11, connecting the drive component 32 and the input end of the planetary gearbox 311. The output end of the planetary gearbox 311 is connected to the piston assembly 2 via the transmission structure 312. This configuration allows the drive component 32 to transmit power to the planetary gearbox 311, which then optimizes the power before transmitting it to the piston assembly 2 via the transmission structure 312, thereby driving the piston assembly 2 to move. The transmission method using the planetary gearbox 311 allows for the transmission of a larger torque, enabling the drain valve to withstand greater external forces, resulting in a longer service life and higher reliability.

[0032] Furthermore, the transmission structure 312 includes a gear 3121 and a rack 3122. The gear 3121 is connected to the output end of the planetary gearbox 311, and the rack 3122 is connected to the piston assembly 2, with the gear 3121 and rack 3122 meshing. This configuration, through the transmission of the gear 3121 and rack 3122, allows for the transmission of a larger torque, enabling the drain valve to withstand greater external forces, resulting in a longer service life and higher reliability. Simultaneously, using the gear 3121 and rack 3122 to achieve the reciprocating motion of the piston assembly 2 provides high efficiency and direct power transmission; it also eliminates elastic slippage, ensures good motion synchronization, and allows for precise control of the reciprocating motion of the piston assembly 2.

[0033] In this embodiment, the drain valve also includes a control plate 41 and a first sensor 42 and a second sensor 43 disposed on the control plate 41. The rack 3122 has a baffle 3123. The control plate 41 is disposed in the mounting cavity 11. The first sensor 42 and the second sensor 43 are spaced apart along the movement direction of the rack 3122. This allows the first sensor 42 and the second sensor 43 to detect the position of the baffle 3123 when the rack 3122 moves, and the position of the piston assembly 2 can be determined by detecting the position of the baffle 3123.

[0034] Among them, such as Figure 4 As shown, when the first sensor 42 detects the baffle 3123, the piston assembly 2 disconnects the inlet 13 and the outlet 14; when the second sensor 43 detects the baffle 3123, the piston assembly 2 connects the inlet 13 and the outlet 14.

[0035] In some embodiments, the first sensor 42 and the second sensor 43 include, but are not limited to, optocouplers. The optocoupler has good electromagnetic interference immunity and electrical insulation capabilities.

[0036] In this embodiment, the piston assembly 2 includes a piston body 21 and an elastic element 22. The piston body 21 is located within the valve body cavity 12 and connected to a rack 3122, allowing the rack 3122 to move the piston body 21. The elastic element 22 is connected between the inner wall of the valve body cavity 12 on the side opposite to the inlet 13 and the piston body 21, and is configured to ensure that the piston body 21 always tends to move away from the inner wall of the valve body cavity 12 on the side opposite to the inlet 13. Thus, the elastic element 22 assists in disconnecting the inlet 13 and the outlet 14 when the piston body 21 moves. The elastic element 22 is a spring.

[0037] Optionally, the rack 3122 and the piston body 21 can be an integrated structure, so that the rack 3122 can directly drive the piston body 21 to move, with good synchronization.

[0038] Specifically, the piston body 21 includes, but is not limited to, a bellows piston. This ensures a good seal when connecting or disconnecting the inlet 13 and the outlet 14.

[0039] Furthermore, the piston assembly 2 also includes a seal 23, which is positioned on the side of the valve body cavity 12 opposite to the inlet 13. This seal 23 seals both the mounting cavity 11 and the valve body cavity 12. Due to the strict airtightness requirements within the valve body cavity 12, positive and negative pressures flow through the inlet 13 and outlet 14. The valve body cavity 12 is subjected to these positive and negative pressure chambers. The seal 23 is a corrugated sealing ring, which ensures a good sealing effect and prevents sewage backflow during the connection or disconnection of the inlet 13 and outlet 14. The axial direction of the corrugated sealing ring allows for repeatable positioning, ensuring the accuracy and stability of the piston assembly 2 during movement.

[0040] Alternatively, in another embodiment not shown in the figure, the piston assembly 2 includes a piston body 21 and a seal 23, but may not include the elastic element 22. With this configuration, the piston body 21 can be moved directly by the rack 3122, thus achieving the purpose of connecting or disconnecting the inlet 13 and the outlet 14.

[0041] In this embodiment, the housing 1 includes a first outer shell 15, a second outer shell 16, and a connecting plate 17. The first outer shell 15 and one side of the connecting plate 17 are connected, the second outer shell 16 and the other side of the connecting plate 17 are connected, and the transmission component 31 is connected to the bottom of the connecting plate 17. The first outer shell 15 has a mounting cavity 11, and the second outer shell 16 has a valve body cavity 12, a water inlet 13, and a water outlet 14. This arrangement allows the connecting plate 17 to connect the first outer shell 15, the second outer shell 16, and the transmission component 31, resulting in a simple structure and a high degree of integration.

[0042] This embodiment also provides a sweeper, including the drain valve described above. Using the sweeper of this invention, the transmission component 31 is mounted on the housing 1, and the drive component 32 is driven by the piston assembly 2 via the transmission component 31. Thus, the drive component 32 can drive the piston assembly 2 to reciprocate within the valve body cavity 12, thereby controlling the connection or disconnection of the inlet 13 and outlet 14 through the movement of the piston assembly 2, and ultimately controlling the opening and closing of the drain valve. Unlike the prior art where the motor directly drives the piston to open and close the valve, the sweeper of this invention uses a transmission component 31 that effectively transmits power, improving the working efficiency and service life of the drain valve. This effectively solves the problem of poor power transmission efficiency of the motor in the existing drain valve, leading to poor working efficiency.

[0043] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A drain valve, characterized in that, include: The housing (1) has an installation cavity (11), a valve body cavity (12), a water inlet (13) and a water outlet (14), wherein the water inlet (13) and the water outlet (14) are both connected to the valve body cavity (12); Piston assembly (2) is located inside the valve body cavity (12); The drive assembly (3) includes a transmission component (31) and a drive component (32). The transmission component (31) is disposed on the housing (1). Part of the structure of the transmission component (31) is located in the mounting cavity (11). The drive component (32) is driven to connect with the piston assembly (2) through the transmission component (31). The drive component (32) drives the piston assembly (2) to reciprocate, so as to control the connection or disconnection of the inlet (13) and the outlet (14) through the piston assembly (2).

2. The drain valve according to claim 1, characterized in that, The transmission component (31) includes a planetary gearbox (311) and a transmission structure (312). The planetary gearbox (311) is mounted on the housing (1). The transmission structure (312) is located in the mounting cavity (11). The drive component (32) is connected to the input end of the planetary gearbox (311). The output end of the planetary gearbox (311) is connected to the piston assembly (2) through the transmission structure (312).

3. The drain valve according to claim 2, characterized in that, The transmission structure (312) includes a gear (3121) and a rack (3122). The gear (3121) is connected to the output end of the planetary gearbox (311), and the rack (3122) is connected to the piston assembly (2). The gear (3121) and the rack (3122) mesh.

4. The drain valve according to claim 3, characterized in that, The drain valve also includes a control plate (41) and a first sensor (42) and a second sensor (43) disposed on the control plate (41). The rack (3122) has a baffle (3123). The control plate (41) is disposed in the mounting cavity (11). The first sensor (42) and the second sensor (43) are distributed at intervals along the movement direction of the rack (3122). Both the first sensor (42) and the second sensor (43) can detect the position of the baffle (3123) so as to determine the position of the piston assembly (2) by detecting the position of the baffle (3123).

5. The drain valve according to claim 4, characterized in that, Both the first sensor (42) and the second sensor (43) are optocouplers.

6. The drain valve according to claim 3, characterized in that, The piston assembly (2) includes a piston body (21) and an elastic element (22). The piston body (21) is located in the valve body cavity (12) and connected to the rack (3122). The elastic element (22) is connected between the inner wall of the valve body cavity (12) away from the inlet (13) and the piston body (21), and is configured to make the piston body (21) always have a tendency to move away from the inner wall of the valve body cavity (12) away from the inlet (13).

7. The drain valve according to claim 6, characterized in that, The piston assembly (2) further includes a seal (23) disposed on the side of the valve body cavity (12) away from the inlet (13), and the seal (23) seals the mounting cavity (11) and the valve body cavity (12).

8. The drain valve according to claim 6, characterized in that, The piston body (21) is a corrugated barrel piston.

9. The drain valve according to any one of claims 1-8, characterized in that, The housing (1) includes a first outer shell (15), a second outer shell (16), and a connecting plate (17). The first outer shell (15) and the connecting plate (17) are connected on one side, and the second outer shell (16) and the connecting plate (17) are connected on the other side. The transmission member (31) is connected to the bottom of the connecting plate (17). The first outer shell (15) has the mounting cavity (11), and the second outer shell (16) has the valve body cavity (12), the water inlet (13), and the water outlet (14).

10. A sweeping machine, characterized in that, Includes the drain valve as described in any one of claims 1-9.

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