A protective device for a float level switch of a submersible sewage pump

Abstract

A protective device for a float level switch of a submersible sewage pump is provided. An angle steel bracket (4) is welded to the long side of the top of the first channel steel; a vertical steel pad (5) is welded to the bottom of the second channel steel (2); the first channel steel (1) and the second channel steel (2) are tightened and fixed by bolts (16) and nuts (17); pipe clamps (10) are installed at both ends of the steel pipe (9); a horizontal steel pad (6) is welded to one end of a screw (11), and the other end of the screw (11) is screwed into the steel pipe (9); a horizontal support (18) is placed inside the angle steel bracket (4) at the top of the vertical support (19); the lower end of the first PVC pipe (12) and the upper end of the second PVC pipe (13) are connected by a water-passing mesh (15). This invention solves the problem of economic losses caused by the float level switch in the sump being stuck in the corner of the submersible sewage pump, pipe support, pipe clamps, or entangled with objects such as pump wires, preventing the submersible sewage pump from working properly.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically provides a protection device for a float level switch of a submersible sewage pump. Background Technology

[0002] A protective device for a float level switch of a submersible sewage pump is provided. It can protect the submersible sewage pump to operate normally. It has the advantages of easy installation and removal, wide application range, and good overall stability. It is often used in the sump pits of construction sites and completed buildings.

[0003] The traditional practice is to place the float level switch of the submersible sewage pump, along with its control wire, directly into the sump without any protection. However, during routine maintenance, it has been found that the float level switch often gets stuck in the pipe supports, pipe clamps, or corners of the submersible sewage pump within the sump, or becomes entangled with objects such as the pump's electrical wires, causing problems such as the submersible sewage pump malfunctioning or the pump motor burning out.

[0004] Therefore, it is necessary to improve the traditional method of placing a float level switch for a submersible sewage pump in a sump. Utility Model Content

[0005] The purpose of this utility model is to provide a protection device for the float level switch of a submersible sewage pump, which prevents the float level switch from getting stuck on the submersible sewage pump and pipe support or getting tangled with wires in the sump, thus ensuring the normal operation of the submersible sewage pump.

[0006] The technical solution of this utility model is as follows:

[0007] A protective device for a float level switch of a submersible sewage pump includes openings on the sides of a first channel steel (5#) 1 and a second channel steel (8#) 2; an angle steel bracket 4 is welded to the long side of the top of the first channel steel (5#); a vertical steel pad 5 is welded to the bottom of the second channel steel (8#); the first channel steel (5#) 1 is embedded back-to-back into the second channel steel (8#) 2, and the first channel steel (5#) 1 and the second channel steel (8#) 2 are tightened and fixed by bolts 16 and nuts 17; pipe clamps 1 are installed at both ends of the steel pipe (40mm) 9. 0. One end of the lead screw 11 is welded with a horizontal steel pad 6, and the other end of the lead screw 11 is screwed into a steel pipe (40mm) 9; flat steel 3 is welded to the back of the long side at 1 / 3 and 3 / 2 of the first channel steel (5#) 1 and the second channel steel (8#) 2, respectively, with holes at both ends of the flat steel 3; two openings are made in the flat steel 3; the horizontal support 18 is placed in the angle steel bracket 4 at the top of the vertical support 19; water passage holes 14 are made on the pipe walls of the first PVC pipe (Ф250mm) 12 and the second PVC pipe (Ф300mm) 13. The lower end of the first PVC pipe (Ф250mm) 12 and the upper end of the second PVC pipe (Ф300mm) 13 are connected by a water passage mesh 15.

[0008] This utility model also has the following additional technical features:

[0009] As a further specific optimization of the technical solution of this utility model: the channel steel has symmetrical holes on both sides to facilitate the passage of bolts, the flat steel is welded to the back of the channel steel, the angle steel is welded to the top of the channel steel, the U-shaped retaining ring passes through the two holes on both sides of the flat steel and is fixed to the PVC pipe with nuts, and the steel plates are placed on both sides and the bottom of the device to support the device frame.

[0010] As a further specific optimization of the technical solution of this utility model: the channel steels differ by one model, which makes it convenient to insert the smaller channel steel into the larger channel steel with the smaller channel steel facing out. Both the large and small channel steels have symmetrical holes on both sides, which facilitates the fixing of the frame with bolts when it is extended or retracted.

[0011] As a further specific optimization of the technical solution of this utility model: the PVC pipes are punched with water passage holes at fixed intervals, with a difference of one size in specifications, so that when the device frame is extended or retracted, the smaller PVC pipe can be easily inserted into the larger PVC pipe, and the PVC pipes of different sizes are connected by a water passage mesh.

[0012] As a further specific optimization of the technical solution of this utility model: after connecting pipe clamps to both ends of the steel pipe, screws are inserted to control the width of the sump and the frame of the fixing device.

[0013] As a further specific optimization of the technical solution of this utility model: the holes on both sides of the flat steel facilitate the passage of the U-shaped retaining ring, and the spacing between the holes should be determined according to the size of the U-shaped retaining ring.

[0014] As a further specific optimization of the technical solution of this utility model: the angle steel is welded to the top of the channel steel and is used as a cross brace to support the frame of the device.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] (1) The protective device of the float level switch of the submersible sewage pump is fixedly installed in the sump through a telescopic device frame, which can fix the protective device without damaging the waterproof layer in the sump.

[0017] (2) The protective device of the float level switch of the submersible sewage pump is to fix two sections of PVC pipe connected by a water network on the device frame to achieve the purpose of telescopic PVC pipe, which can adapt to sump pits of different depths.

[0018] (3) The protective devices of the float level switch of the submersible sewage pump mostly use welding and bolt connection, which can ensure a long service life and multiple projects can be used in a cycle.

[0019] (4) The protective device of the float level switch of the submersible sewage pump can prevent the level switch from getting stuck or tangled with the equipment, pipes and fittings in the sump, thereby ensuring that the submersible sewage pump can work normally for a long time. Attached Figure Description

[0020] Figure 1 A schematic diagram of the front structure of the protective device for the float level switch of a submersible sewage pump;

[0021] Figure 2 A schematic diagram of the side structure of the protective device for the float level switch of a submersible sewage pump;

[0022] Figure 3 A schematic diagram of the protective device frame structure for the float level switch of a submersible sewage pump;

[0023] Figure 4 A schematic diagram of the protective device frame (front of vertical support) for the float level switch of a submersible sewage pump;

[0024] Figure 5 A schematic diagram of the protective device frame (back of the vertical support) for the float level switch of a submersible sewage pump;

[0025] Figure 6 A schematic diagram of the protective device frame (side of the vertical support) for the float level switch of a submersible sewage pump;

[0026] Figure 7 This is a schematic diagram of the protective device frame (cross brace) structure for the float level switch of a submersible sewage pump.

[0027] The components are: 1. First channel steel (5#), 2. Second channel steel (8#), 3. Flat steel, 4. Angle steel bracket, 5. Vertical steel pad, 6. Horizontal steel pad, 7. Small U-shaped clamp, 8. Large U-shaped clamp, 9. Steel pipe (40mm), 10. Pipe clamp, 11. Screw, 12. First PVC pipe (Ф250mm), 13. Second PVC pipe (Ф300mm), 14. Water passage hole, 15. Water passage mesh, 16. Bolt, 17. Nut, 18. Horizontal brace, 19. Vertical brace, 20. Stainless steel clamp, 21. Cable passage hole. Detailed Implementation

[0028] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0029] This invention effectively solves the problem of economic losses caused by the float level switch in the sump getting stuck in the corner of the submersible pump, pipe support, pipe clamps, or entangled with objects such as pump wires, preventing the submersible pump from working properly. It has the advantages of being easy to use, sturdy and durable, and having high turnover efficiency.

[0030] Example 1

[0031] A protective device for a float level switch of a submersible sewage pump includes a first channel steel (5#) 1, a second channel steel (8#) 2, a flat steel 3, an angle steel bracket 4, a vertical steel pad 5, a horizontal steel pad 6, a small U-shaped retaining ring 7, a large U-shaped retaining ring 8, a steel pipe (40mm) 9, a pipe clamp 10, a screw 11, a first PVC pipe (Ф250mm) 12, a second PVC pipe (Ф300mm) 13, a water passage hole 14, a water passage mesh 15, a bolt 16, a nut 17, a horizontal brace 18, a vertical brace 19, a stainless steel clamp 20, and a wire passage hole 21.

[0032] like Figure 6 As shown, holes are made at 50mm intervals on the sides of the first channel steel (5#) 1 and the second channel steel (8#) 2. Angle steel brackets 4 are welded to the long side of the top of the first channel steel (5#). Vertical steel pads 5 are welded to the bottom of the second channel steel (8#). The first channel steel (5#) is embedded back-to-back into the second channel steel (8#). After adjusting the overall height of the channel steel according to the depth of the sump, bolts 16 are inserted through the holes on both sides of the channel steel, and nuts 17 are tightened to fix it.

[0033] like Figure 7 As shown, pipe clamps 10 are installed at both ends of the steel pipe (40mm) 9. One end of the screw rod 11 is welded to the horizontal steel pad 6, and the other end is screwed into the steel pipe (40mm) 9 through the pipe clamps 10.

[0034] like Figure 3 As shown, flat steel bars are welded to the back of the long sides of the first channel steel (5#) and the second channel steel (8#) at 1 / 3 and 3 / 2 of their lengths, respectively. Ф12 holes are drilled at both ends of the flat steel bars. The clear distance between the two holes on the first channel steel (5#) is Ф250, and the clear distance between the two holes on the second channel steel (8#) is Ф300. The horizontal brace 18 is then placed inside the angle steel bracket 4 at the top of the vertical brace 19, thus completing the installation of the device frame.

[0035] like Figure 1 , Figure 2 As shown, water passage holes 14 with a diameter of Ф12 are made on the walls of the first PVC pipe (Ф250mm) 12 and the second PVC pipe (Ф300mm) 13 at 60mm intervals. The lower end of the first PVC pipe (Ф250mm) 12 and the upper end of the second PVC pipe (Ф300mm) 13 are connected by a water passage mesh 15 and then fixed with stainless steel clamps to prevent the water passage mesh from falling off the PVC pipe.

[0036] The channel steel has symmetrical holes on both sides to facilitate the passage of bolts. The flat steel is welded to the back of the channel steel, and the angle steel is welded to the top of the channel steel. The U-shaped retaining ring passes through the two holes on both sides of the flat steel and is fixed to the PVC pipe with a nut. The steel plates are placed on both sides and the bottom of the device to support the device frame.

[0037] The channel steels are one size different, which makes it easy to insert the smaller channel steel into the larger channel steel with the smaller one facing. Both the large and small channel steels have symmetrical holes on both sides, which makes it easy to fix the frame with bolts when it is extended or retracted.

[0038] The PVC pipes are punched with water passage holes at fixed intervals, with a difference of one size between them. This allows the smaller PVC pipe to be easily inserted into the larger PVC pipe when the device frame is extended or retracted. The PVC pipes of different sizes are connected by a water passage mesh.

[0039] The steel pipe is connected to pipe clamps at both ends and then screw rods are inserted to control the width of the sump and fix the frame of the device.

[0040] The flat steel has holes on both sides to facilitate the passage of the U-shaped retaining ring. The spacing between the holes should be determined according to the size of the U-shaped retaining ring.

[0041] The angle steel is welded to the top of the channel steel and is used to support the cross bracing of the device frame.

[0042] Because the sump pit is constantly filled with water and is quite damp, all metal parts must be coated with anti-rust paint to ensure that the iron parts of the device do not rust.

[0043] Example 2

[0044] A protective device for a float level switch of a submersible sewage pump, the installation method of which is as follows:

[0045] Step 1: Adjust the length of the vertical support 19 according to the depth of the sump pit, and then install bolts 16 to fix it.

[0046] Step 2: After adjusting the length of the two PVC pipes through the water-passing net 15, use U-shaped clips to vertically fix the two PVC pipes to the flat steel on the vertical support 19. After completion, place the vertical steel pad face down into the pit.

[0047] Step 3: Next, according to the width of the sump, place the horizontal support 18 horizontally into the angle steel bracket 4 at the top of the vertical support, and then adjust and fix the horizontal steel pads 6 at both ends to the well wall by rotating and turning the screws at both ends.

[0048] Step 4: Considering the large amount of silt in the sump, the bottom edge of the second PVC pipe (Ф300mm) 13 should be 20cm from the bottom of the sump during installation to ensure that silt does not accumulate inside the protective device. The top edge of the first PVC pipe (Ф250mm) 12 should be 10cm from the sump cover.

[0049] Step 5: Place the float level switch inside the protection device, determine the water level start and stop height of the submersible sewage pump according to the design requirements, and adjust the range of motion of the float level switch and the cable length. The cable terminal passes through the wire hole 21 reserved in the pipe plug at the upper end of the device and is led to the water pump control box through the electrical conduit.

[0050] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

Claims

1. A protection device for a float level switch of a submersible sewage pump, characterized in that: Includes: first channel steel (1), second channel steel (2), flat steel (3), angle steel bracket (4), vertical steel pad (5), horizontal steel pad (6), small U-shaped clamp (7), large U-shaped clamp (8), steel pipe (9), pipe clamp (10), screw rod (11), first PVC pipe (12), second PVC pipe (13), water passage hole (14), water passage mesh (15), bolt (16), nut (17), horizontal brace (18), vertical brace (19), stainless steel clamp (20), and wire passage hole (21); among which: The first channel steel (1) and the second channel steel (2) are provided with openings on their sides; the top long side of the first channel steel is welded with an angle steel bracket (4); the bottom of the second channel steel (2) is welded with a vertical steel pad (5); the first channel steel (1) is embedded back to back into the second channel steel (2), and the first channel steel (1) and the second channel steel (2) are tightened and fixed by bolts (16) and nuts (17); Pipe clamps (10) are installed at both ends of the steel pipe (9), and a horizontal steel pad (6) is welded to one end of the screw (11), and the other end of the screw (11) is screwed into the steel pipe (9); Flat steel (3) is welded to the back of the long side at 1 / 3 and 2 / 3 of the first channel steel (1) and the second channel steel (2), respectively. The flat steel (3) has holes at both ends and two openings at both ends. The horizontal brace (18) is placed inside the angle steel bracket (4) at the top of the vertical brace (19); Water passage holes (14) are opened on the pipe walls of the first PVC pipe (12) and the second PVC pipe (13); the lower end of the first PVC pipe (12) and the upper end of the second PVC pipe (13) are connected by a water passage net (15).

2. The protection device for a float level switch of a submersible sewage pump according to claim 1, characterized in that: The channel steel has symmetrical holes on both sides to facilitate the passage of bolts. The flat steel is welded to the back of the channel steel, and the angle steel is welded to the top of the channel steel. The U-shaped retaining ring passes through the two holes on both sides of the flat steel and is fixed to the PVC pipe with nuts. The steel plates are placed on both sides and the bottom of the device to support the device frame.

3. The protection device for a float level switch of a submersible sewage pump according to claim 1, characterized in that: The channel steels differ by one model, and both the large and small channel steels have symmetrical holes on both sides.

4. The protection device for a float level switch of a submersible sewage pump according to claim 1, characterized in that: The PVC pipes are punched with water passage holes at fixed intervals. The pipes of different sizes are connected by a water passage mesh.

5. The protection device for a submersible pump float level switch of claim 1, wherein: The steel pipe is connected to pipe clamps at both ends and then inserted into a lead screw.

6. The protection device for a submersible pump float level switch of claim 1, wherein: The flat steel has holes on both sides to facilitate the passage of the U-shaped retaining ring.

7. The protection device for a submersible pump float level switch of claim 1, wherein: The angle steel is welded to the top of the channel steel.

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