Sewage lifter with automatic power-off function

Abstract

The utility model discloses a sewage lifter with an automatic power-off function, which comprises a box body, a control device, a crushing device and a discharging device are arranged in the box body, the control device is used for controlling the crushing device and / or the discharging device to work, the sewage lifter further comprises an access cover, the access cover is movably arranged on the box body, and the access cover is connected with the box body. The access cover moves between an opening position and a closing position, the access cover is connected and matched with the control device, when the access cover is opened, the control device cannot control the crushing device and / or the discharging device to work, and when the access cover is closed, the control device can control the crushing device and / or the discharging device to work. According to the scheme, the access cover is linked with the control device, when the access cover is opened, the crushing device and / or the discharging device cannot be started even if a power supply is not pulled out and a liquid level switch is not triggered, the safety of operators is further guaranteed, the structure is simple and practical, convenience and reliability are achieved, the universality is good, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bathrooms, in particular to a sewage lifter with an automatic power-off function. Background Art

[0002] The sewage lift is an important transmission tool for the discharge of sewage and wastewater from basements. It collects and crushes the sewage from sanitary appliances and discharges it into the outdoor sewage pipe. Its working principle is to automatically start and stop according to the liquid level through the liquid level sensor switch in the box. Because the sewage collected by the sewage lift contains impurities such as feces and hair, the sewage lift is equipped with a crushing device to crush the impurities before discharging them. However, after long-term use, impurities will accumulate, and even entangle or lock the crushing device, causing damage to the sewage pump, so regular cleaning and maintenance can ensure product function and extend product life. At the same time, existing technologies such as patent CN201180023823.0, which is used for an immersion device connected to a flush toilet, have a variety of electrical components installed in the sewage lift. During maintenance, if the electrical components near the inspection port are still in working condition, it is easy to cause safety hazards. For example, when the crushing device is set close to the inspection port, since the crushing device is equipped with a sharp blade and is electrified, if the cover is not closed when opened, it may cause harm to the operator. When the discharge device is set close to the inspection port, since the discharge device is electrified, if the cover is not closed when opened, there may be a risk of electric shock. Utility Model Content

[0003] In view of the above phenomenon, the utility model proposes an improved plan and provides a sewage lift which can automatically cut off the power when the inspection cover is opened. Even if the operator does not unplug the power supply, there is no hidden danger of false triggering of the sewage lift, which fully guarantees the safety of the operator and is simple and practical.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A sewage lifter with an automatic power-off function comprises a box body, wherein a control device, a crushing device and a discharge device are arranged in the box body, wherein the control device is used to control the operation of the crushing device and / or the discharge device, and further comprises an inspection cover, wherein the inspection cover is movably mounted on the box body, wherein the inspection cover moves between an open position and a closed position, and wherein the inspection cover is connected and matched with the control device;

[0006] When the inspection cover is open, the control device cannot control the crushing device and / or the discharge device to work; when the inspection cover is closed, the control device can control the crushing device and / or the discharge device to work.

[0007] Preferably, it further comprises a driving unit, and the control device controls the driving unit to drive the crushing device and the discharge device to work.

[0008] Preferably, the box body comprises a lower shell and an upper cover, the upper cover is provided with an inspection opening, and the inspection cover is detachably arranged on the inspection opening.

[0009] Preferably, the control device comprises a first trigger switch and a second trigger switch, and when the first trigger switch and the second trigger switch are triggered simultaneously, the control device can control the crushing device and the discharge device to start working.

[0010] Preferably, it further includes a capacitor and a liquid level sensing switch; the first trigger switch and the second trigger switch are arranged in series, the first trigger switch is a first micro switch, and the second trigger switch is a second micro switch;

[0011] The liquid level sensing switch is located in the lower housing and cooperates with the first micro switch. When the liquid level in the lower housing rises to a preset height, the first micro switch is triggered to turn on.

[0012] The inspection cover is provided with a driving column;

[0013] When the inspection cover cooperates to close the inspection port, the driving column can press down to trigger the second micro switch in the control device;

[0014] When the inspection cover cooperates to open the inspection port, the driving column is separated from the inspection port and the second micro switch.

[0015] Preferably, the upper cover is provided with a receiving cavity for placing the control device and a sealing cover sealingly matched with the receiving cavity.

[0016] Preferably, the sealing cover is provided with an opening, the opening is provided with a sealing film, and the driving column can cooperate with the sealing film to trigger the second micro switch.

[0017] Preferably, the box body is provided with a plurality of water inlets and water outlets.

[0018] Preferably, the first trigger switch is a first sensor, and the second trigger switch is a second sensor.

[0019] Preferably, the crushing device and the discharge device are arranged in the box along the up-down direction or the left-right direction, and the control device can control the crushing device to crush solids in the water and control the discharge device to discharge the crushed sewage out of the box.

[0020] The beneficial effects of the utility model are:

[0021] The utility model is a sewage lifter with automatic power-off function:

[0022] 1. Provide a sewage lifter that can automatically cut off the power when the inspection cover is opened, so as to realize the linkage between the inspection cover and the control device. When the inspection cover is opened, the crushing device and / or the discharge device will not be started even if the power is not unplugged and the liquid level switch is triggered, thereby further ensuring the safety of the operator, convenience and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the sewage lift for this application;

[0025] Figure 2 A three-dimensional diagram of the sewage lift for this application;

[0026] Figure 3 This is a schematic diagram of opening the inspection cover of the sewage lift in this application;

[0027] Figure 4 This is a schematic cross-sectional view of the sewage lift inspection cover of the present application being opened;

[0028] Figure 5 A schematic diagram of a closed cross section of the sewage lift inspection cover of the present application;

[0029] Figure 6 This is a cross-sectional schematic diagram of a liquid level sensing switch of a sewage lifter of the present application;

[0030] Figure 7 This is a schematic diagram of the connection of the control device of the sewage lifter of this application;

[0031] Figure 8 This is a schematic diagram of the exploded view of the driving unit of the sewage lifter of the present application;

[0032] In the figure, 1-box, 11-water inlet, 12-water outlet, 13-upper cover, 131-inspection port, 132-accommodation chamber, 133-sealing cover, 1331-opening, 1332-sealing film, 14-lower shell, 15-inspection cover, 151-driving column;

[0033] 2-driving unit, 21-crushing device, 22-discharging device;

[0034] 3-control device, 31-first trigger switch / first micro switch, 32-second trigger switch / second micro switch, 33-liquid level sensing switch, 34-capacitor. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] refer to Figures 1 to 8 As shown, a sewage lift with an automatic power-off function includes a housing 1, in which a control device 3, a crushing device 21 and a discharge device 22 are arranged. The crushing device 21 and / or the discharge device 22 can be controlled to work by the control device 3. The maintenance cover 15 is also included. The maintenance cover 15 is movably mounted on the housing 1. The maintenance cover 15 is movable between an open position and a closed position, and the maintenance cover 15 is connected to the control device 3 to achieve linkage cooperation. The sewage lift can control the discharge device 22 and / or the crushing device 21 to work by the control device 3. When the maintenance cover 15 is opened, the control device 3 cannot control the crushing device 21 and / or the discharge device 22 to work, and the crushing device 21 and / or the discharge device 22 stop running; when the maintenance cover 15 is closed, the control device 3 can control the crushing device 21 and / or the discharge device 22 to start working. This solution can realize the linkage between the inspection cover 15 and the control device 3. When the inspection cover 15 is opened, the crushing device 21 and / or the discharge device 22 will not be started even if the power is not unplugged and the liquid level switch is not triggered, thereby further ensuring the safety of the operator, being convenient and reliable, having good versatility, being simple and practical in structure, and having low cost, and being able to increase user experience and application scope.

[0037] Based on the above technical solution, a driving unit 2 is optionally provided in the housing 1, and the driving unit 2 cooperates with the crushing device 21 and the discharge device 22. The control device 3 provided in the housing 1 is used to control the operation of the driving unit 2. The start of the driving unit 2 can drive the crushing device 21 and the discharge device 22 to operate. When the inspection cover 15 is opened, that is, separated from the housing 1, the control device 3 cannot control the operation of the driving unit 2, and the crushing device 21 and the discharge device 22 will be closed in coordination. On the contrary, when the inspection cover 15 is closed, the control device 3 can control the driving unit 2 to start running, and then the crushing device and the discharge device will start running in coordination. Among them, the crushing device 21 and the discharge device 22 and other coordination structures linked to the driving unit 2 can refer to the existing sewage lift structure, and can be designed after adaptive adjustment, which will not be repeated here. This solution can realize the linkage between the inspection cover 15 and the control device 3. When the inspection cover 15 is opened, the drive unit 2 is powered off. Even if the power is not unplugged and the liquid level switch is triggered, the drive unit 2 will not be started, further ensuring the safety of the operator. It is convenient and reliable, has good versatility, is simple and practical in structure, and has low cost, which can increase user experience and application scope. The working principle of the remaining undescribed parts is the same as the above principle, and will not be repeated here.

[0038] Furthermore, the box body 1 specifically includes a lower shell 14 and an upper cover 13. The upper cover 13 is provided with an inspection port 131, and the inspection port 131 is connected and cooperated with the inspection cover 15. The inspection cover 15 is detachably installed on the inspection port 131. The inspection cover 15 can be opened and closed separately, so when maintenance is performed, it is only necessary to open the inspection cover 15 for maintenance.

[0039] In this embodiment, the control device includes a first trigger switch and a second trigger switch. When the first trigger switch and the second trigger switch are triggered at the same time, the control device can control the crushing device and the discharge device to start working. Furthermore, the first trigger switch and the second trigger switch are preferably arranged in series, which can better achieve the above purpose.

[0040] Specifically, in a preferred embodiment, the first trigger switch adopts a first micro switch 31, the second trigger switch adopts a second micro switch 32, and further comprises a capacitor 34 and a liquid level sensing switch 33. The liquid level sensing switch 33 is located in the lower housing 14 and cooperates with the first micro switch 31. When the liquid level in the lower housing 14 rises to a preset target height, the first micro switch 31 is triggered to turn on. Specifically, optionally, the liquid level sensing switch 33 is located below the control device 3, and the liquid level sensing switch 33 extends into the lower housing 14 of the box body 1.

[0041] More specifically, Figures 3 to 5 The inspection cover 15 is provided with a driving column 151, and the inspection cover 15 has a disassembled state and a closed state. When the inspection cover 15 cooperates to close the inspection port 131, the driving column 151 can press down to trigger the second micro switch 32 in the control device 3, such as Figure 5 When the inspection cover 15 cooperates to open the inspection port 131, the driving column 151 is separated from the inspection port 131 and the second micro switch 32, thereby closing the second micro switch 32. Figure 4 At this time, the button of the micro switch pops out, which cuts off the power of the control device 3, and then cuts off the power of the drive unit 2, thereby stopping the operation of the crushing device 21 and the discharge device 22.

[0042] In a preferred embodiment, Figure 7 The first micro switch 31 and the second micro switch 32 are arranged in series. When the first micro switch 31 and the second micro switch 32 are triggered at the same time, the driving unit 2 is started to drive the crushing device 21 and the discharge device 22 to operate. In the preferred embodiment, the upper cover 13 is further provided with a receiving cavity 132 for placing the control device 3, and a sealing cover 133 that is sealed with the receiving cavity 132 is also provided. The sealing cover 133 is sealed with the receiving cavity 132 to better prevent dust and water leakage.

[0043] Furthermore, the sealing cover 133 of the control device 3 is provided with an opening 1331, and the opening 1331 is provided with a sealing film 1332, and the driving column 151 can cooperate with the sealing film 1332 to trigger the second micro switch 32. Such a design can achieve the above control purpose and ensure sealing.

[0044] It is understandable that the box body 1 may be optionally provided with a plurality of water inlets 11 and water outlets 12 .

[0045] In addition, in other optional embodiments, the first trigger switch of the control device 3 uses a first sensor, and the second trigger switch uses a second sensor, which is used to replace the functions of the first microswitch 31, the second microswitch 32 and the liquid level sensing switch 33, so as to realize the switch drive unit 2 and then control the operation of the crushing device 21 and the discharge device 22. Specifically, the first sensor (replacing the first microswitch 31 and the liquid level sensing switch 33) can sense the liquid level of the water tank, and when the liquid level rises to the target height, the first sensor outputs a signal; the second sensor (replacing the second microswitch 32) can sense whether the inspection cover 15 is closed, and when the inspection cover 15 is closed, the second sensor outputs a signal; the circuit board receives the signals output by the first sensor and the second sensor, and then starts to control the drive unit 2 to work.

[0046] For the purpose of better crushing debris and sewage discharge, the driving unit 2 is arranged between the crushing device 21 and the discharge device 22. Preferably, the crushing device 21 is arranged above the driving unit 2, and the discharge device 22 is arranged below the driving unit 2. The driving unit 2 can drive the crushing device 21 above it to crush the solids in the sewage collected from the water inlet 11 and drive the discharge device 22 to discharge the crushed sewage from the box 1. Of course, in another optional embodiment, the crushing device 21 is arranged below the driving unit 2, and the discharge device 22 is arranged above the driving unit 2. The working principle is the same as the above principle, which will not be elaborated here.

[0047] In addition, in other optional embodiments, the crushing device 21 and the discharge device 22 can be arranged in the box along the left-right direction. The working principle is the same as the above principle and will not be elaborated here.

[0048] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A sewage lift with automatic power-off function, comprising a box body, in which a control device, a crushing device and a discharge device are arranged, characterized in that: The control device is used to control the operation of the crushing device and / or the discharge device, and also includes an inspection cover, which is movably mounted on the box body, and moves between an open position and a closed position, and the inspection cover is connected and cooperated with the control device; When the inspection cover is open, the control device cannot control the crushing device and / or the discharge device to work; when the inspection cover is closed, the control device can control the crushing device and / or the discharge device to work.

2. A sewage lift with automatic power-off function according to claim 1, characterized in that: It also includes a driving unit, and the control device controls the driving unit to drive the crushing device and the discharge device to work.

3. The sewage lifting device with automatic power-off function according to claim 1 is characterized in that: The box body comprises a lower shell and an upper cover, the upper cover is provided with an inspection opening, and the inspection cover is detachably arranged on the inspection opening.

4. A sewage lifting device with automatic power-off function according to claim 3, characterized in that: The control device comprises a first trigger switch and a second trigger switch. When the first trigger switch and the second trigger switch are triggered at the same time, the control device can control the crushing device and the discharge device to start working.

5. The sewage lifting device with automatic power-off function according to claim 4 is characterized in that: It also includes a capacitor and a liquid level sensing switch; the first trigger switch and the second trigger switch are arranged in series, the first trigger switch is a first micro switch, and the second trigger switch is a second micro switch; The liquid level sensing switch is located in the lower housing and cooperates with the first micro switch. When the liquid level in the lower housing rises to a preset height, the first micro switch is triggered to turn on. The inspection cover is provided with a driving column; When the inspection cover cooperates to close the inspection port, the driving column can press down to trigger the second micro switch in the control device; When the inspection cover cooperates to open the inspection port, the driving column is separated from the inspection port and the second micro switch.

6. The sewage lifting device with automatic power-off function according to claim 5 is characterized in that: The upper cover is provided with a receiving cavity for placing the control device and a sealing cover which is sealed with the receiving cavity.

7. The sewage lifting device with automatic power-off function according to claim 6 is characterized in that: The sealing cover is provided with an opening, and the opening is provided with a sealing film. The driving column can cooperate with the sealing film to trigger the second micro switch.

8. The sewage lifting device with automatic power-off function according to claim 1 is characterized in that: The box body is provided with a plurality of water inlets and water outlets.

9. The sewage lifting device with automatic power-off function according to claim 4, characterized in that: The first trigger switch is a first sensor, and the second trigger switch is a second sensor.

10. A sewage lift with automatic power-off function according to any one of claims 1 to 9, characterized in that: The crushing device and the discharge device are arranged in the box along the up-down direction or the left-right direction. The control device can control the crushing device to crush the solid matter in the water and control the discharge device to discharge the crushed sewage out of the box.

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