Automatic foundation pit drainage monitoring device

Abstract

The utility model discloses an automatic foundation pit drainage monitoring device, which relates to the technical field of water supply and drainage devices and comprises a floating plate, a filter screen cylinder and a protective cylinder, a water suction pump and a liquid level sensor are both mounted at the lower end of the floating plate, a drainage hose connected with the water suction pump penetrates through the floating plate, and the filter screen cylinder is mounted at the lower end of the floating plate. The water suction pump and the liquid level sensor are covered with the protective cylinder, the filter screen cylinder is sleeved with the protective cylinder, and the protective cylinder is vertically connected with the floating plate in a sliding mode. Due to the arrangement of the floating plate and the filter screen cylinder, when the device is used, the device only needs to be placed in a foundation pit, the device does not need to be fixed to the bottom of the foundation pit, when accumulated water exists in the foundation pit, the floating plate can float by the accumulated water, and when the accumulated water is too much, the water suction pump and the liquid level sensor can be always located at the positions close to the liquid level; and in the drainage process, the filter screen cylinder can effectively prevent impurities in the foundation pit from being intercepted, and the impurities are effectively prevented from blocking the drainage hose.

Description

TECHNICAL FIELD

[0001] The utility model relates to water supply and drainage device technical field, especially in automatic foundation pit drainage monitoring devices. BACKGROUND

[0002] In the construction, the foundation pit excavation is the important construction procedure of modern large -scale building, in the foundation pit engineering construction, need to do well the drainage protection work to the foundation pit, to avoid meeting the rainy season, the precipitation is larger, the rainwater outside the foundation pit pours into the foundation pit, the long -time water storage in the foundation pit can cause the influence to the foundation pit foundation, simultaneously, the water in the foundation pit needs the drainage device and promptly drains, otherwise can influence the construction progress.

[0003] About the foundation pit drainage device, searches, for example, patent announcement number CN222227344U provides a kind of foundation pit drainage device, including water reservoir, drainage assembly and positioning assembly, when the liquid level of water in foundation pit reaches the position of liquid level sensor, PLC controller automatically controls water pump to start, through water suction pipe, water in foundation pit is extracted, and is extracted to water reservoir and is temporarily stored.

[0004] Based on the above search, it is found in combination with prior art that the foundation pit drainage device similar to the above disclosed in prior art is directly fixed at the bottom of foundation pit, on the one hand, when there is accumulated water in foundation pit, it is more inconvenient to install;On the other hand, when draining, the mud and other sundries at the bottom of foundation pit are easily sucked into water pump with water, thereby easily leading to pipe blockage.Therefore, an automatic foundation pit drainage monitoring device is proposed to improve the above problems. UTILITY MODEL CONTENTS

[0005] Therefore, the purpose of the utility model is to provide an automatic foundation pit drainage monitoring device to solve the problems raised in the background art.

[0006] In order to achieve the above purpose, the utility model adopts the technical scheme that:

[0007] An automatic foundation pit drainage monitoring device, comprising a water pump and a liquid level sensor respectively electrically connected with an external controller, further comprising:

[0008] A floating plate, the water pump and the liquid level sensor are installed at the lower end of the floating plate, and a drainage hose connected with the water pump penetrates through the floating plate;

[0009] A filter screen cylinder is installed at the lower end of the floating plate and covers the outside of the water pump and the liquid level sensor;

[0010] A protective cylinder is sleeved on the outside of the filter screen cylinder, and the protective cylinder is vertically slidably connected with the floating plate.

[0011] As a further supplement to the present scheme, the inside of the filter screen cylinder is provided with a cleaning structure.

[0012] As a further supplement to the present solution, the cleaning structure comprises an impeller, a rotating frame and a brush;

[0013] The rotating frame is rotatably installed on the inner side of the filter screen cylinder, the impeller is installed on the middle part of the rotating frame and is located at the water suction port of the water pump, and the brush is installed on the side end of the rotating frame and is arranged in abutment with the inner wall of the filter screen cylinder.

[0014] As a further supplement to the present solution, the filter screen cylinder is detachably installed on the lower end of the floating plate.

[0015] As a further supplement to the present solution, a plurality of connecting rods are vertically slidably penetrated through the floating plate at equal intervals in the circumferential direction, the upper end of each connecting rod is fixed with a limiting cap, and the lower end of each connecting rod is fixed with the protective cylinder.

[0016] As a further supplement to the present solution, the lower end of the connecting rod is threadedly connected with the protective cylinder.

[0017] As a further supplement to the present solution, the surface of the connecting rod is coated with a warning coating.

[0018] As a further supplement to the present solution, when the limiting cap is in abutment with the upper end surface of the floating plate, the upper end surface of the protective cylinder is not lower than the lower end surface of the filter screen cylinder.

[0019] In summary, the technical effects and advantages of the present application are as follows:

[0020] 1. In the present application, by arranging the floating plate and the filter screen cylinder, the device can be placed in the foundation pit during use, without the need to fix the device to the bottom of the foundation pit. When there is accumulated water in the foundation pit, the accumulated water will float the floating plate. When there is a large amount of accumulated water, the water pump and the liquid level sensor can always be located close to the liquid surface, so that the water pump is not easily blocked by silt and other debris during pumping. In addition, the filter screen cylinder can effectively prevent the interception of impurities in the foundation pit during the drainage process, thereby effectively preventing the impurities from blocking the drainage hose.

[0021] 2. In the present application, by arranging the protective cylinder, when the liquid surface of the accumulated water is lowered to the bottom of the foundation pit, the protective cylinder will touch the bottom first. As the floating plate moves downward with the water pump, the liquid level sensor and the filter screen cylinder, the protective cylinder gradually covers the filter screen cylinder from bottom to top, thereby effectively preventing silt from being sucked in. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic view of the three-dimensional structure of the device in the drainage state in the present embodiment;

[0023] Figure 2 is a schematic view of the three-dimensional structure of the device in the state of reaching the bottom of the foundation pit in the present embodiment;

[0024] Figure 3It is a plane structure schematic diagram in the water drainage state in the embodiment;

[0025] Figure 4 It is a plane structure schematic diagram in the state of reaching the bottom of the foundation pit in the embodiment;

[0026] Explanation of reference numerals:

[0027] 1, floating plate; 2, water pump; 3, liquid level sensor; 4, filter screen cylinder; 5, impeller; 6, rotating frame; 7, brush; 8, protective cylinder; 9, connecting rod; 10, limiting cap; 11, drainage hose. DETAILED DESCRIPTION

[0028] The utility model will be further explained in connection with the drawings and specific embodiments as follows:

[0029] Reference Figures 1-4 As shown in the figure, an automatic foundation pit drainage monitoring device comprises a water pump 2 and a liquid level sensor 3 which are electrically connected with an external controller respectively, the water pump 2 and the liquid level sensor 3 can adopt conventional models, the liquid level of the accumulated water in the foundation pit is detected by the liquid level sensor 3 through conventional technical means, and the water pump 2 is controlled to pump water by the external controller.

[0030] The foundation pit drainage monitoring device further comprises a floating plate 1, wherein the water pump 2 and the liquid level sensor 3 are installed at the lower end of the floating plate 1, the drainage hose 11 connected with the water pump 2 penetrates through the floating plate 1, when in use, the device only needs to be placed in the foundation pit, and the device does not need to be fixed to the bottom of the foundation pit, when there is accumulated water in the foundation pit, the accumulated water will float the floating plate 1, when there is more accumulated water, it is ensured that the water pump 2 and the liquid level sensor 3 can always be located close to the liquid surface, and the water pump 2 is not easy to be blocked by mud and other impurities when pumping water.

[0031] In addition, the foundation pit drainage monitoring device further comprises a filter screen cylinder 4, the filter screen cylinder 4 is installed at the lower end of the floating plate 1 and covers the outer side of the water pump 2 and the liquid level sensor 3, the filter screen cylinder 4 can effectively prevent the impurities in the foundation pit from being intercepted, and further prevent the impurities from blocking the drainage hose 11.

[0032] In order to prevent the bottom mud from blocking the drainage hose 11 when the accumulated water liquid surface is lowered to the bottom of the foundation pit, the foundation pit drainage monitoring device further comprises a protective cylinder 8, the protective cylinder 8 is sleeved on the outer side of the filter screen cylinder 4, and the protective cylinder 8 is vertically and slidingly connected with the floating plate 1, when the accumulated water liquid surface is lowered to the bottom of the foundation pit, the protective cylinder 8 touches the bottom first, and as the floating plate 1 moves downward with the water pump 2, the liquid level sensor 3 and the filter screen cylinder 4, the protective cylinder 8 gradually covers the filter screen cylinder 4 from bottom to top, thereby effectively avoiding the mud from being sucked in.

[0033] The inner side of the filter screen cylinder 4 is provided with a cleaning structure, specifically, the cleaning structure comprises an impeller 5, a rotating frame 6 and a brush 7, the rotating frame 6 is rotatably installed on the inner side of the filter screen cylinder 4, the impeller 5 is installed on the middle part of the rotating frame 6, and the impeller 5 is located at the water suction port of the water pump 2, and the brush 7 is installed on the side end of the rotating frame 6 and is arranged in abutment with the inner wall of the filter screen cylinder 4.

[0034] Based on the cooperation of the above structure, in the process of water pumping by the water pump 2, the water flow entering the water suction port impacts the impeller 5, so that the rotating frame 6 rotates with the brush 7, thereby cleaning the filter screen cylinder 4, effectively avoiding the blockage of the filter screen cylinder 4, and since the brush 7 and the rotating frame 6 are located on the inner side of the filter screen cylinder 4, the stable rotation thereof can be ensured.

[0035] In order to facilitate the maintenance of the water pump 2 and the liquid level sensor 3 and the replacement of the filter screen cylinder 4, the filter screen cylinder 4 is detachably installed on the lower end of the floating plate 1, for example, by using a clamping or threaded connection mode.

[0036] Regarding the vertical sliding connection of the protective cylinder 8 and the floating plate 1, specifically, a plurality of connecting rods 9 are vertically and equidistantly slidably penetrated through the floating plate 1, the upper end of the connecting rod 9 is fixed with a limiting cap 10, and the lower end of the connecting rod 9 is fixed with the protective cylinder 8.

[0037] In order to facilitate the disassembly and assembly of the protective cylinder 8, the lower end of the connecting rod 9 is threadedly connected with the protective cylinder 8, and when the limiting cap 10 abuts against the upper end surface of the floating plate 1, the upper end surface of the protective cylinder 8 is not lower than the lower end surface of the filter screen cylinder 4, thereby avoiding the entry of external sundries between the bottom of the filter screen cylinder 4 and the protective cylinder 8.

[0038] The surface of the connecting rod 9 is coated with a warning coating, after the protective cylinder 8 touches the bottom, the connecting rod 9 is gradually moved to the upper side of the floating plate 1 along with the downward movement of the floating plate 1, and the staff can know that the device touches the bottom by observing the warning coating on the surface of the connecting rod 9, thereby avoiding that the staff cannot simply know the drainage state of the foundation pit by observing the accumulated water due to the excessive turbidity of the accumulated water in the foundation pit.

[0039] The working principle of the utility model is as follows: when in use, the device only needs to be placed in the foundation pit, without being fixed with the bottom of the foundation pit, when there is accumulated water in the foundation pit, the accumulated water will float the floating plate 1, when the accumulated water is more, the water pump 2 and the liquid level sensor 3 can always be located close to the liquid surface, and the water pump 2 is not easy to be blocked by mud and other sundries during water pumping;

[0040] During the drainage process, the filter screen cylinder 4 can effectively prevent impurities in the foundation pit from being intercepted, effectively prevent the impurities from blocking the drainage hose 11, and in the process of pumping water by the water pump 2, the water flow entering the water suction port impacts the impeller 5, so that the rotating frame 6 rotates with the brush 7, thereby cleaning the filter screen cylinder 4, effectively avoiding the filter screen cylinder 4 from being blocked; when the water surface is lowered to the bottom of the foundation pit, the protection cylinder 8 is preferentially grounded, and as the floating plate 1 is lowered with the water pump 2, the liquid level sensor 3 and the filter screen cylinder 4, the protection cylinder 8 gradually covers the filter screen cylinder 4 from bottom to top, thereby effectively preventing the sand from being sucked in.

[0041] The utility model has been described by the above related embodiments and drawings, however the above embodiment is only an example of implementing the utility model. It must be pointed out that the disclosed embodiment does not limit the scope of the utility model. On the contrary, modifications and equal settings included in the spirit and scope of claims are included in the scope of the utility model.

Claims

1. An automatic foundation pit drainage monitoring device, comprising a water pumping device and a liquid level sensor electrically connected with an external controller respectively, characterized in that, Also include: A floating plate, the water pump and liquid level sensor are installed at the lower end of the floating plate, the floating plate is through with the water pump connected with the drain hose; Filter screen cylinder, the filter screen cylinder is installed at the lower end of the floating plate, and covers the outer side of the water pump and liquid level sensor; Protective cylinder, the protective cylinder is sleeved on the outer side of the filter screen cylinder, and the protective cylinder is vertically and slidingly connected with the floating plate.

2. The automatic foundation pit drainage monitoring device according to claim 1, characterized in that: The inner side of the filter screen cylinder is provided with a cleaning structure.

3. The automatic foundation pit drainage monitoring device according to claim 2, characterized in that: The cleaning structure includes an impeller, a rotating frame and a brush; The rotating frame is rotationally installed on the inner side of the filter screen cylinder, the impeller is installed on the middle part of the rotating frame, and the impeller is located at the water suction port of the water pump, the brush is installed on the side end of the rotating frame, and is in close contact with the inner wall of the filter screen cylinder.

4. The automatic foundation pit drainage monitoring device according to claim 3, characterized in that: The filter screen cylinder is detachably installed on the lower end of the floating plate.

5. The automatic foundation pit drainage monitoring device according to claim 1, characterized in that: The floating plate is vertically and slidingly penetrated by a plurality of connecting rods at equal intervals, the upper end of the connecting rod is fixed with a limiting cap, and the lower end of the connecting rod is fixed with the protective cylinder.

6. The automatic foundation pit drainage monitoring device according to claim 5, characterized in that: The lower end of the connecting rod is threadedly connected with the protective cylinder.

7. The automatic foundation pit drainage monitoring device according to claim 5, characterized in that: The surface of the connecting rod is coated with a warning coating. 8.The automatic foundation pit drainage monitoring device according to claim 5, characterized in that: When the limiting cap is in close contact with the upper end surface of the floating plate, the upper end surface of the protective cylinder is not lower than the lower end surface of the filter screen cylinder.

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