Top cover assembly for immersed pump well

Abstract

The utility model discloses a top cover assembly for a pump well of an immersed pump, and relates to the technical field of immersed pumps, the top cover assembly comprises a top cover body, a plurality of bolt holes are formed in the top cover body, a plurality of bolts are assembled in the bolt holes, concentric sinking grooves are formed in the peripheries of the bolt holes, and sealing pieces for sealing the bolts are arranged in the sinking grooves. The sealing piece comprises an annular gasket placed in the sinking groove and a sealing cap tightly pressed on the annular gasket, and the sealing cap covers the bolt hole in a sealing mode. One sealing piece is arranged corresponding to each bolt hole, and the bolt holes are covered with the sealing pieces, so that the bolts located in the bolt holes are isolated from the outside, the risk that the bolts are rusted by water is effectively reduced, and it is facilitated that the bolts are screwed to disassemble the top cover in the later period.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of submerged liquid pumps, and particularly relates to a top cover assembly for a submerged liquid pump well. BACKGROUND

[0002] A submerged liquid pump, also known as a submersible pump, is a pump used to lift water from a deep well to the ground. The installation depth of the submerged liquid pump is usually much deeper than that of the ground pump. The pump is placed at the bottom of the well or in the water through a rope, cable or pipeline, and the outlet of the pump is connected to the pipeline to lift the water.

[0003] The submerged liquid pump is usually installed at the bottom of the pump well, and the pump well provides a stable installation environment for the submerged liquid pump and ensures the normal operation of the submerged liquid pump.

[0004] The existing submerged liquid pump well is usually sealed with a cover plate, and the top cover is usually fixed to the pump well by bolts. The long-term exposure of the bolts to water may cause rusting of the bolts. When the top cover is disassembled again, the difficulty of screwing the bolts increases, and even the bolts may break during screwing, which is not conducive to improving the work efficiency of the maintenance of the submerged liquid pump after use. CONTENT OF THE INVENTION

[0005] The main purpose of the application is to provide a top cover assembly for a submerged liquid pump well, which aims to solve the above technical problems.

[0006] The technical scheme adopted by the application is as follows:

[0007] A top cover assembly for a submerged liquid pump well comprises a top cover body, a plurality of bolt holes are arranged on the top cover body, a plurality of bolts are arranged in the bolt holes, a concentric groove is arranged on the outer periphery of the bolt hole, a sealing element for sealing the bolt is arranged in the groove, the sealing element comprises a ring gasket arranged in the groove and a sealing cap pressed on the ring gasket, and the sealing cap seals the bolt hole.

[0008] Optionally, the sealing cap has an inner cavity accommodating the bolt hole, and the bottom of the sealing cap is provided with a ring shoulder abutting against the ring gasket.

[0009] Optionally, an annular sleeve is arranged on the outer wall of the sealing cap and abuts against the side wall of the groove.

[0010] Optionally, the inner diameter of the annular sleeve is smaller than the outer diameter of the sealing cap, and the outer diameter of the annular sleeve is greater than the inner diameter of the ring groove.

[0011] Optionally, a pressing element is further arranged on the top cover and presses the sealing cap.

[0012] Optionally, the pressing member comprises a pair of sleeves arranged on the top cover body and a rubber plug arranged in the sleeves, the sleeves are symmetric about the center of the bolt hole, the rubber plug is connected with a plug rod, the plug rod is connected with the sealing cap through a connecting arm, the bottom of the sleeve is provided with an exhaust nozzle, and a detachable plug cap is arranged at the exhaust nozzle.

[0013] Optionally, the exhaust nozzle is threadedly connected with the plug cap.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] The top cover assembly for the pump well of the submersible pump provided by the application comprises a top cover body, a plurality of bolt holes are arranged on the top cover body, a plurality of bolts are arranged in the bolt holes, a concentric groove is arranged on the outer periphery of the bolt hole, a sealing member for sealing the bolt is arranged in the groove, the sealing member comprises a ring pad arranged in the groove and a sealing cap pressed on the ring pad, the sealing cap seals the bolt hole, one sealing member is arranged corresponding to each bolt hole, the bolt hole is covered by the sealing member, the bolt in the bolt hole is isolated from the outside, thereby effectively reducing the risk of corrosion of the bolt by water and liquid, and the bolt can be easily screwed and removed in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The structural schematic diagram of the top cover assembly for the pump well of the submersible pump provided by the application is provided in one view.

[0017] Figure 2 The disassembly structural schematic diagram of the sealing member in the top cover assembly for the pump well of the submersible pump provided by the application.

[0018] Explanation of reference numerals in the drawings:

[0019] 1-top cover body, 2-bolt hole, 3-bolt, 4-sealing member, 401-ring pad, 402-sealing cap, 403-ring shoulder, 404-ring sleeve, 5-groove, 6-pressing member, 601-sleeve, 602-rubber plug, 603-plug rod, 604-connecting arm, 605-exhaust nozzle, 606-plug cap. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0021] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications will also change accordingly.

[0022] In the present application, unless specifically defined and limited otherwise, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In addition, if the present application has a description of "first", "second", etc., the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. For example, "A and / or B" includes A solution, or B solution, or A and B solution. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0024] Referring to the drawings Figure 1 The embodiment of the present application provides a top cover assembly for pump well of submerged liquid pump, which comprises a top cover body 1, a plurality of bolt holes 2 are arranged in the top cover body 1 in a circumferential array, and a plurality of bolts 3 are assembled in the bolt holes 2, the top cover body 1 is connected with the pump well cover through the bolts 3 to cover the pump well. It is not difficult to imagine that the bolts 3 are in a bare state after the top cover body 1 is installed, and the outdoor environmental factors are easy to cause the bolts 3 to rust, so that the bolts 3 are not convenient to disassemble.

[0025] In the present embodiment, as Figure 1 and Figure 2As shown, the outer periphery of each bolt hole 2 is provided with a concentric sink groove 5 which is not in communication with the bolt hole 2, and a sealing member 4 is arranged in the sink groove 5 to seal the bolt 3, wherein the sealing member 4 comprises a ring pad 401 and a sealing cap 402, the ring pad 401 is adapted to the sink groove 5 and is placed in the sink groove 5, and the sealing cap 402 is pressed on the ring pad 401, the sealing cap 402 has an inner cavity accommodating the bolt hole 2, and after being placed in the sink groove 5, the sealing cap 402 covers the bolt hole 2, and the head of the bolt 3 is located in the inner cavity, and at the same time, an annular shoulder 403 is integrally formed at the bottom of the sealing cap 402, the annular shoulder 403 is in contact with the ring pad 401, and the contact area with the ring pad 401 can be increased by using the annular shoulder 403, thereby helping to improve the sealing performance, and at the same time, a ring sleeve 404 is arranged on the outer peripheral wall of the sealing cap 402, and the ring sleeve 404 and the ring pad 401 are both made of rubber and have plasticity.

[0026] The inner diameter of the ring sleeve 404 is smaller than the outer diameter of the sealing cap 402, and the outer diameter of the ring sleeve 404 is greater than the inner diameter of the ring groove, so that the ring sleeve 404 can tightly contact the sealing cap 402 inside and tightly contact the side wall of the sink groove 5 outside, thereby further playing a sealing effect.

[0027] As can be easily imagined, by pressing the sealing cap 402 on the ring pad 401 to cover the bolt hole 2, the bolt 3 is isolated from the outside world, the risk of contact with water and liquid is reduced, thereby to a certain extent, helping to reduce the risk of rusting of the bolt 3 by water and liquid, so as to facilitate the bolt 3 to be removed more smoothly, and the top cover body 1 to be removed from the pump well.

[0028] Of course, it can be found that only relying on the sealing cap 402 to cover the bolt hole 2 makes the sealing cap 402 have the risk of falling off, so in a more preferred embodiment, as shown in Figure 1 and Figure 2 A pressing member 6 is further arranged on the top cover to press the sealing cap 402. Specifically, the pressing member 6 comprises a pair of sleeve pipes 601 arranged on the top cover body 1 and a rubber plug 602 arranged in the sleeve pipe 601, the sleeve pipe 601 is integrally formed on the top cover body 1 and is symmetric about the center of the bolt hole 2, and the rubber plug 602 is in close contact with the inner wall of the sleeve pipe 601 but can move up and down along the sleeve pipe 601. The rubber plug 602 is connected with a plug rod 603, the plug rod 603 extends out of the sleeve pipe 601 upward, and a connecting arm 604 is integrally formed at the end of the plug rod 603 extending out of the sleeve pipe 601, the connecting arm 604 is fixedly connected with the sealing cap 402 located in the middle. At the same time, an exhaust nozzle 605 is arranged at the bottom of the sleeve pipe 601, an outer thread is arranged on the outer wall of the exhaust nozzle 605, and a gas plug 606 is threadedly connected, and the gas plug 606 and the exhaust nozzle 605 are detachably connected in a threaded connection manner.

[0029] Therefore, it is not difficult to understand that after the top cover body 1 is connected with the pump well through the bolts 3, the ring pad 401 is placed into the sink 5, and then the sealing cap 402 is placed into the sink 5 to cover the bolt hole 2, so that the bolts 3 are isolated from the outside. In the process of placing the sealing cap 402, the air cap 606 needs to be removed, so that the rubber plugs 602 on both sides are together installed into the sleeve 601, and the air in the sleeve 601 is discharged. When the sealing cap 402 is installed to the bottom and abuts against the ring pad 401, the air cap 606 is screwed on the exhaust nozzle 605. At this time, under the action of the outside atmospheric pressure, the rubber plug 602 is difficult to be withdrawn from the sleeve 601 upward, so as to ensure that the sealing cap 402 always covers the bolt hole 2, so that the bolts 3 are isolated from the outside, and the risk of being corroded by water and liquid is reduced.

[0030] In summary, the embodiment of the present application provides a top cover assembly for a pump well of a submerged pump. By arranging a sealing member corresponding to each bolt hole, the bolt hole is covered by the sealing member, so that the bolt in the bolt hole is isolated from the outside, thereby effectively reducing the risk of corrosion of the bolt by water and liquid, and helping to loosen the bolt for disassembling the top cover later.

[0031] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A top cover assembly for a submersible pump well, comprising a top cover body, wherein a plurality of bolt holes are arranged on the top cover body, and a plurality of bolts are fitted in the bolt holes, characterized in that, The outer periphery of the bolt hole is provided with a concentric sink, and the sink is provided with a sealing element for sealing the bolt, the sealing element comprises a ring pad placed in the sink and a sealing cap compressed on the ring pad, and the sealing cap seals the bolt hole.

2. The top cover assembly for a pump well of an immersed liquid pump according to claim 1, characterized in that The sealing cap has an inner cavity accommodating the bolt hole, and the bottom of the sealing cap is provided with a ring shoulder abutting the ring pad.

3. The top cover assembly for a pump well of an immersion liquid pump according to claim 2, characterized by The outer wall of the sealing cap is provided with a ring sleeve abutting the side wall of the sink.

4. The top cover assembly for a pump well of an immersion liquid pump according to claim 3, characterized by The inner diameter of the ring sleeve is smaller than the outer diameter of the sealing cap, and the outer diameter of the ring sleeve is larger than the inner diameter of the ring groove.

5. The top cover assembly for a wet pit pump well of claim 2, wherein, The top cover is further provided with a pressing element for pressing the sealing cap.

6. A top cover assembly for a wet pit pump according to claim 5, wherein, The pressing element comprises a pair of sleeves provided on the top cover body and a rubber plug provided in the sleeves, the sleeves are symmetric about the center of the bolt hole, the rubber plug is connected with a plug rod, the plug rod and the sealing cap are connected through a connecting arm, the bottom of the sleeve is provided with an exhaust nozzle, and the exhaust nozzle is provided with a detachable plug cap.

7. A top cover assembly for a wet pit pump according to claim 6, characterised in that, The exhaust nozzle is threadedly connected with the plug cap.

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