Pit drainage device

Abstract

The utility model relates to the technical field of drainage equipment, and provides a pit drainage device, an electric controller is used for being arranged outside a pit, and a first liquid level meter, a second liquid level meter and a drainage mechanism are used for being arranged inside the pit and are respectively and electrically connected with the electric controller; the first liquid level meter and the second liquid level meter are arranged on the inner wall of the pit, and the electric controller is used for controlling the first drainage pump to be started when receiving a signal output by the first liquid level meter and controlling the first drainage pump and the second drainage pump to be started at the same time when detecting a signal output by the second liquid level meter. The electric controller is arranged outside the pit, so that a worker can conveniently manage the electric controller. The height of accumulated water in the pit is monitored in real time through the first liquid level meter and the second liquid level meter which are arranged in the pit and fed back to the electric controller to control the drainage pump to be started for drainage, and automatic detection and automatic drainage of the water level of the pit are achieved. The pit drainage mechanism is higher in safety, higher in universality and suitable for various pit construction environments.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage equipment, and particularly relates to a pit drainage device. Background Art

[0002] For large vertical lathes, boring and milling machining centers and other equipment, their electrical drive devices and hydraulic stations are usually below their pits. Among them, the pit is prone to backflow when the groundwater level rises during the rainy season, or the water supply pipeline of the equipment fails and leaks, which easily leads to water accumulation in the pit. These two situations are not easy to detect during the construction process, resulting in a large amount of water accumulation in the pit, causing failures in the electrical drive system and hydraulic system, and requiring maintenance or production suspension, resulting in relatively large losses.

[0003] Therefore, during the current construction process, special personnel are usually arranged to conduct real-time or regular monitoring and drainage. However, whether it is the leakage of the water supply pipeline or the backflow caused by the rising water level, both are unpredictable. Real-time manual monitoring will increase labor costs, and regular manual monitoring may cause equipment water inlet failures due to untimely drainage. Summary of the Utility Model

[0004] The problem solved by the utility model is how to solve the problems of high cost of manual monitoring of pit drainage and untimely drainage.

[0005] To solve the above problems, the utility model provides a pit drainage device, which includes an electronic controller, a first liquid level gauge, a second liquid level gauge and a drainage mechanism;

[0006] The electronic controller is used to be arranged outside the pit, and the first liquid level gauge, the second liquid level gauge and the drainage mechanism are used to be arranged inside the pit and are respectively electrically connected to the electronic controller;

[0007] The first liquid level gauge is arranged at a first position on the inner wall of the pit, the second liquid level gauge is arranged at a second position on the inner wall of the pit, the height of the second position from the bottom of the pit is higher than the height of the first position from the bottom of the pit, the drainage mechanism is used to drain the accumulated water in the pit, the drainage mechanism includes a first drainage pump and a second drainage pump, and the electronic controller is used to control the first drainage pump to start when receiving the signal output by the first liquid level gauge, and control the first drainage pump and the second drainage pump to start simultaneously when detecting the signal output by the second liquid level gauge.

[0008] Optionally, the drainage mechanism includes a first drainage pipe, the inlet end of the first drainage pipe is provided with the first drainage pump, and the outlet end of the first drainage pipe is used to be arranged in a drainage well.

[0009] Optionally, the drainage mechanism further includes a second drain pipe, the inlet end of the second drain pipe is provided with the second drainage pump, and the outlet end of the second drain pipe is adapted to be disposed in the drainage well.

[0010] Optionally, the pit drainage device further includes a raised platform, the raised platform is adapted to be disposed at the bottom of the pit, the second drainage pump is disposed on the raised platform, the first drainage pump is disposed at the bottom of the pit, and the height of the raised platform is lower than the height of the second position from the bottom of the pit.

[0011] Optionally, the drainage mechanism includes a main drain pipe, a first drain pipe and a second drain pipe, the inlet end of the first drain pipe is provided with the first drainage pump, the inlet end of the second drain pipe is provided with the second drainage pump, the outlet ends of the first drain pipe and the second drain pipe are respectively connected to one end of the main drain pipe, and the other end of the drain pipe is disposed in the drainage well.

[0012] Optionally, a one-way check valve is provided on the main drain pipe, and the one-way check valve is used to restrict drainage from the inlet end of the main drain pipe to the outlet end of the main drain pipe.

[0013] Optionally, the pit drainage device further includes an audible and visual alarm and a protective housing, the electronic controller is disposed in the protective housing, the audible and visual alarm is disposed outside the protective housing, and the audible and visual alarm is electrically connected to the electronic controller.

[0014] Optionally, the electronic controller further includes an automatic / manual conversion button, a start button and a stop button, and the automatic / manual conversion button, the start button and the stop button are disposed on the protective housing.

[0015] Optionally, the electronic controller further includes an isolation transformer, one end of the isolation transformer is adapted to be connected to the power supply of the electronic controller, the other end is adapted to be connected to the mechanism to be powered in the electronic controller, and the isolation transformer is disposed in the protective housing.

[0016] Optionally, the electronic controller further includes a leakage protection mechanism disposed in the protective housing, one end of the leakage protection mechanism is adapted to be connected to the power supply of the electronic controller, and the other end is adapted to be connected to the mechanism to be powered in the electronic controller

[0017] The beneficial effects of the pit drainage device of the present utility model are as follows: During use, the electric controller is arranged outside the pit, avoiding the failure of the electric controller caused by the accumulated water in the pit and facilitating the management of the electric controller by the staff. The first position and the second position higher than the first position are preset, the first liquid level gauge is arranged at the first position, and the second liquid level gauge is arranged at the second position. The height of the accumulated water in the pit is monitored in real time by the first liquid level gauge and the second liquid level gauge. When the first liquid level gauge and / or the second liquid level gauge detects the water level, a signal is fed back to the electric controller to control the drainage pump to start draining. For example, when the first liquid level gauge detects the water level and outputs a signal, the electric controller controls the first drainage pump to start draining; when the second liquid level gauge detects the water level and outputs a signal, the electric controller controls the first drainage pump and the second drainage pump to start draining simultaneously. While realizing the automatic detection and automatic drainage of the pit water level, different drainage pumps are started according to the output signals of different liquid level gauges, improving the drainage efficiency, reasonably distributing the operation time of the drainage pumps, increasing the service life of the drainage pumps, and reducing the cost. The pit drainage mechanism is simple to operate, has higher safety, and stronger versatility, and is applicable to various pit construction environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the pit drainage device in the embodiment of the present utility model;

[0019] Figure 2 It is a schematic structural diagram of a drainage mechanism in the embodiment of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the electric controller in the embodiment of the present utility model;

[0021] Description of the reference numerals:

[0022] 1 - Electric controller;

[0023] 2 - First liquid level gauge;

[0024] 3 - Drainage mechanism; 31 - First drainage pump; 32 - Second drainage pump; 33 - First drain pipe; 34 - Second drain pipe; 35 - Main drain pipe;

[0025] 4 - Check valve;

[0026] 5 - Acoustic-optic alarm;

[0027] 6 - Protective shell;

[0028] 7 - Automatic / manual conversion button;

[0029] 8 - Start button;

[0030] 9 - Stop button;

[0031] 10 - Pad platform;

[0032] 11 - Second liquid level gauge. Detailed implementation manner

[0033] To make the above - mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Although some embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present utility model. It should be understood that the drawings and embodiments of the present utility model are only for exemplary purposes and are not used to limit the protection scope of the present utility model.

[0034] The term "including" and its variants used herein are open - ended, that is, "including but not limited to"; the term "based on" is "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order or mutual dependence relationship of the functions performed by these devices, modules, or units.

[0035] It should be noted that the modifications of "one" and "multiple" mentioned in the present utility model are illustrative rather than restrictive. Those skilled in the art should understand that unless clearly specified otherwise in the context, it should be understood as "one or more".

[0036] In view of the problems existing in the above - mentioned related technologies, this embodiment provides a pit drainage device.

[0037] As Figure 1 shown, area A represents the pit, B represents the pit cover plate, C represents the drainage well cover. A pit drainage device provided by an embodiment of the present utility model includes an electric controller 1, a first liquid level gauge 2, a second liquid level gauge 11, and a drainage mechanism 3;

[0038] The electric controller 1 is used to be set outside the pit, and can be set in places such as the manual monitoring area, which is convenient for the staff to monitor and manage. The first liquid level gauge 2, the second liquid level gauge 11 and the drainage mechanism 3 are used to be set inside the pit, and are respectively electrically connected to the electric controller 1. The electric controller 1 is used to obtain the accumulated water height in the pit detected by the first liquid level gauge 2 and the second liquid level gauge 11, and control the operation of the drainage mechanism 3 to drain the accumulated water in the pit. Among them, in this embodiment, a double-float liquid level gauge can also be added, and different types of liquid level gauges can also be selected according to the actual situation to further determine the accumulated water level height and improve the accuracy of water level detection.

[0039] The first liquid level gauge 2 is set at the first position on the inner wall of the pit, the second liquid level gauge is set at the second position on the inner wall of the pit, and the height of the second position from the bottom of the pit is higher than the height of the first position from the bottom of the pit. The drainage mechanism 3 is used to drain the accumulated water in the pit. The drainage mechanism 3 includes a first drainage pump 31 and a second drainage pump 32. The first drainage pump 31 and the second drainage pump 32 can both be set at the bottom of the pit. When the first liquid level gauge 2 and the second liquid level gauge 11 detect the water level, they send signals to the electric controller 1. When the electric controller 1 receives the signal sent by the first liquid level gauge 2, it means that the accumulated water in the pit is less, and only one drainage pump needs to be turned on to drain the accumulated water. Therefore, the electric controller 1 controls the first drainage pump 31 to turn on for drainage; when the electric controller 1 receives the signal sent by the second liquid level gauge 11, it means that the accumulated water in the pit is more, and at this time, all drainage pumps need to be turned on to drain the accumulated water. Therefore, the electric controller 1 controls the first drainage pump 31 and the second drainage pump 32 to turn on simultaneously for drainage.

[0040] It should be noted that the first position and the second position are set before the construction starts, and can be set according to the drainage volume of the drainage pump and the size of the pit.

[0041] In this embodiment, during use, the electric controller 1 is arranged outside the pit to avoid the failure of the electric controller 1 caused by the accumulated water in the pit and facilitate the management of the electric controller 1 by the staff. The first position and the second position higher than the first position are preset, the first liquid level gauge 2 is arranged at the first position, and the second liquid level gauge 11 is arranged at the second position. The height of the accumulated water in the pit is monitored in real time by the first liquid level gauge 2 and the second liquid level gauge 11. When the first liquid level gauge 2 and / or the second liquid level gauge 11 detects the water level, a signal is fed back to the electric controller 1 to control the drainage pump to start draining water. For example, when the first liquid level gauge 2 detects the water level and outputs a signal, the electric controller 1 controls the first drainage pump 31 to start draining water; when the second liquid level gauge 11 detects the water level and outputs a signal, the electric controller 1 controls the first drainage pump 31 and the second drainage pump 32 to start draining water simultaneously. While realizing the automatic detection and automatic drainage of the pit water level, different drainage pumps are started according to the output signals of different liquid level gauges, which improves the drainage efficiency, reasonably distributes the running time of the drainage pumps, increases the service life of the drainage pumps, and reduces the cost. The pit drainage mechanism is simple to operate, has higher safety, and stronger versatility, and is applicable to various pit construction environments.

[0042] Optionally, the drainage mechanism 3 includes a first drain pipe 33. The inlet end of the first drain pipe 33 is provided with the first drainage pump 31, and the outlet end of the first drain pipe 33 is used to be arranged in the drainage well.

[0043] Optionally, the drainage mechanism 3 further includes a second drain pipe 34. The inlet end of the second drain pipe 34 is provided with the second drainage pump 32, and the outlet end of the second drain pipe 34 is used to be arranged in the drainage well.

[0044] Specifically, as Figure 2 shown, the drainage well is communicated with the pit through a drain pipe and is arranged on the side of the pit. When the first drainage pump 31 and / or the second drainage pump 32 is started, the accumulated water is discharged into the drainage well through the drain pipe. In order not to affect the drainage efficiency of the first drainage pump 31 and the second drainage pump 32, the first drain pipe 33 connecting the first drainage pump 31 and the drainage well and the second drain pipe 34 connecting the second drainage pump 32 and the drainage well are respectively arranged. The first drainage pump 31 and the second drainage pump 32 discharge the accumulated water through the first drain pipe 33 and the second drain pipe 34 respectively, without affecting each other, effectively increasing the drainage efficiency.

[0045] Optionally, the pit drainage device further includes a cushion platform 10. The cushion platform 10 is used to be arranged at the bottom of the pit. The second drainage pump 32 is arranged on the cushion platform 10, and the first drainage pump 31 is arranged at the bottom of the pit. The height of the cushion platform 10 is lower than the height of the second position from the bottom of the pit.

[0046] Specifically, as Figure 1As shown, the pit drainage device further includes a raised platform 10. The second drainage pump 32 is disposed on the raised platform 10, and the first drainage pump 31 is disposed at the bottom of the pit, such that the height of the second drainage part is higher than that of the first drainage pump 31. It should be noted that the height of the raised platform 10 is usually higher than or equal to the first position to improve the drainage efficiency.

[0047] Optionally, the drainage mechanism 3 includes a main drainage pipe 35, a first drainage pipe 33, and a second drainage pipe 34. The inlet end of the first drainage pipe 33 is provided with the first drainage pump 31, the inlet end of the second drainage pipe 34 is provided with the second drainage pump 32. The outlet ends of the first drainage pipe 33 and the second drainage pipe 34 are respectively connected to one end of the main drainage pipe 35, and the other end of the drainage pipe is disposed in the drainage well.

[0048] Specifically, as Figure 1 shown, the inlet end of the first drainage pipe 33 is connected to the first drainage pump 31, the inlet end of the second drainage pipe 34 is connected to the second drainage pump 32. The outlet ends of the first drainage pipe 33 and the second drainage pipe 34 are connected to one end of the main drainage pipe 35 through a three-way valve. The other end of the main drainage pipe 35 is disposed in the drainage well to discharge the accumulated water pumped out by the operation of the first drainage pump 31 and the second drainage pump 32 through the first drainage pipe 33, the second drainage pipe 34, and the main drainage pipe 35 to the drainage well.

[0049] Optionally, as Figure 1 shown, a one-way check valve 4 is disposed on the main drainage pipe 35 to restrict the drainage of the accumulated water from the inlet end of the main drainage pipe 35 to the drainage well at the outlet end of the main drainage pipe 35 and prevent the accumulated water discharged to the main drainage pipe 35 from flowing back.

[0050] Optionally, as Figure 1 shown, the pit drainage device includes an audible and visual alarm 5 and a protective housing 6. The electronic controller 1 is disposed in the protective housing 6, and the audible and visual alarm 5 is disposed outside the protective housing 6. The audible and visual alarm 5 is electrically connected to the electronic controller 1.

[0051] Specifically, the electrical system in the electronic controller is disposed in the protective housing 6 to protect the electrical system. The audible and visual alarm 5 is connected to the electronic controller 1 and is disposed outside the protective housing 6. When the electronic controller 1 receives the signal from the second level gauge 11, it indicates that there is more accumulated water in the pit, and the audible and visual alarm 5 gives an audible and visual alarm to prompt the staff to inspect the situation of the pit.

[0052] Optionally, the electronic controller 1 further includes an automatic / manual conversion knob 7, a start button 8, and a stop button 9. The automatic / manual conversion knob 7, the start button 8, and the stop button 9 are disposed on the protective housing 6.

[0053] Specifically, asFigure 3 As shown, an automatic / manual conversion button 7, a start button 8 and a stop button 9 are further provided on the protective case 6, and are respectively connected to the electrical system in the electric controller 1. The automatic / manual conversion button 7 is used to switch the automatic state or manual state of the electric controller 1. The start button 8 and the stop button 9 are respectively used for the staff to manually control the operation of the pit drainage device for drainage in the manual state, effectively avoiding that the drainage mechanism 3 can still be used normally in the case of the failure of the liquid level gauge 2, and improving the reliability of the pit drainage device.

[0054] Optionally, the electric controller 1 further includes an isolation transformer. The isolation transformer is arranged in the protective case 6 and is used to achieve electrical isolation. One end of the isolation transformer is used to connect to the power supply of the electric controller 1, and the other end is used to connect to the electrical systems such as the control unit in the electric controller 1 to convert the high voltage or unstable power supply voltage into a low voltage suitable for the operation of the electrical system and transmit it to the electrical system, realizing electrical isolation from the power supply and ensuring the safety of the equipment and personnel.

[0055] Optionally, the electric controller 1 further includes a leakage protection mechanism arranged in the protective case 6. One end of the leakage protection mechanism is used to connect to the power supply of the electric controller 1, and the other end is used to connect to the power supply institutions in the electric controller 1, so that all the currents input into the electrical system have to pass through the leakage protector, thereby being able to effectively monitor the leakage situation and being used to avoid the occurrence of electric leakage in the electric controller 1. Additionally, the leakage protection mechanism can also be connected to the sound and light alarm 5. When electric leakage is detected, it controls the sound and light alarm 5 to give an alarm, ensuring the safety of the staff and construction.

[0056] Although the present utility model is disclosed as above, the protection scope of the present utility model is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model, and these changes and modifications will all fall within the protection scope of the present utility model.

Claims

1. A pit drainage device, characterized in that: It comprises an electric controller (1), a first liquid level gauge (2), a second liquid level gauge (11) and a drainage mechanism (3); The electric controller (1) is used to be arranged outside the pit, and the first liquid level meter (2), the second liquid level meter (11) and the drainage mechanism (3) are used to be arranged inside the pit and are electrically connected to the electric controller (1) respectively; The first liquid level meter (2) is arranged at a first position on the inner wall of the pit, and the second liquid level meter is arranged at a second position on the inner wall of the pit, the height of the second position from the bottom of the pit is higher than the height of the first position from the bottom of the pit, the drainage mechanism (3) is used to drain the accumulated water in the pit, the drainage mechanism (3) comprises a first drainage pump (31) and a second drainage pump (32), and the electronic controller (1) is used to control the first drainage pump (31) to start when receiving a signal output by the first liquid level meter (2), and control the first drainage pump (31) and the second drainage pump (32) to start simultaneously when detecting a signal output by the second liquid level meter (11).

2. The pit drainage device according to claim 1, characterized in that: The drainage mechanism (3) comprises a first drainage pipe (33), the inlet end of the first drainage pipe (33) is provided with the first drainage pump (31), and the outlet end of the first drainage pipe (33) is used to be arranged in a drainage well.

3. The pit drainage device according to claim 2, characterized in that: The drainage mechanism (3) further comprises a second drainage pipe (34), the inlet end of the second drainage pipe (34) being provided with the second drainage pump (32), and the outlet end of the second drainage pipe (34) being arranged in the drainage well.

4. The pit drainage device according to claim 3, characterized in that: It also includes a raised platform (10), the raised platform (10) is used to be set at the bottom of the pit, the second drainage pump (32) is set on the raised platform (10), the first drainage pump (31) is set at the bottom of the pit, and the height of the raised platform (10) is lower than the height of the second position from the bottom of the pit.

5. The pit drainage device according to claim 1, characterized in that: The drainage mechanism (3) comprises a main drainage pipe (35), a first drainage pipe (33) and a second drainage pipe (34); the first drainage pump (31) is arranged at the inlet end of the first drainage pipe (33), the second drainage pump (32) is arranged at the inlet end of the second drainage pipe (34), the outlet end of the first drainage pipe (33) and the outlet end of the second drainage pipe (34) are respectively connected to one end of the main drainage pipe (35), and the other end of the drainage pipe is arranged in a drainage well.

6. The pit drainage device according to claim 5, characterized in that: The main drainage pipe (35) is provided with a one-way check valve (4), and the one-way check valve (4) is used to limit the drainage from the inlet end of the main drainage pipe (35) to the outlet end of the main drainage pipe (35).

7. The pit drainage device according to claim 1, characterized in that: It also comprises an audible and visual alarm (5) and a protective shell (6), wherein the electric controller (1) is arranged inside the protective shell (6), the audible and visual alarm (5) is arranged outside the protective shell (6), and the audible and visual alarm (5) is electrically connected to the electric controller (1).

8. The pit drainage device according to claim 7, characterized in that: The electric controller (1) further comprises an automatic / manual conversion button (7), a start button (8) and a stop button (9); the automatic / manual conversion button (7), the start button (8) and the stop button (9) are arranged on the protective shell (6).

9. The pit drainage device according to claim 8, characterized in that: The electric controller (1) further comprises an isolation transformer, one end of which is used to be connected to the power supply of the electric controller (1), and the other end of which is used to be connected to a mechanism to be powered in the electric controller (1), and the isolation transformer is arranged in the protective shell (6).

10. The pit drainage device according to claim 8, characterized in that: The electric controller (1) further comprises a leakage protection mechanism arranged in the protective shell (6), one end of the leakage protection mechanism being used to be connected to the power supply of the electric controller (1), and the other end being used to be connected to a mechanism to be powered in the electric controller (1).

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