Submersible pump with sealing connection mechanism

Abstract

The utility model belongs to the technical field of submersible pumps, and discloses a submersible pump with a sealing connection mechanism, which comprises a submersible pump and a sealing connection main body in sealing fit with the submersible pump, the sealing connection main body is detachably connected with the submersible pump, the submersible pump comprises a water outlet pipe fitting, and the water outlet pipe fitting is provided with a first ring groove. The sealing connecting body comprises a connecting plate, a second ring groove is formed in the connecting plate, a connecting piece is installed between the first ring groove and the second ring groove in a matched mode, the periphery of the connecting piece is sleeved with a sealing ring, and the sealing ring is arranged between the water outlet pipe fitting and the connecting plate in a sealed and matched mode. The water outlet pipe fitting has the advantages that the connecting piece is arranged between the water outlet pipe fitting and the connecting plate, and the first sealing piece is arranged on the periphery of the connecting piece in a matched mode to be in sealing fit with the first annular groove in the water outlet pipe fitting and the second annular groove in the connecting plate; in addition, the sealing performance between the water outlet pipe fitting and the sealing connection body is further improved through the sealing ring arranged in the middle of the periphery of the connecting piece in a sleeving mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of submersible pumps, in particular to a submersible pump with a sealing connection mechanism. Background Art

[0002] Submersible pump is an important equipment for deep well water extraction. When in use, the whole unit submerges into the water to extract groundwater to the surface. It is used for domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship load adjustment, and fountain landscape. The submersible electric pump unit consists of four parts: water pump, submersible motor (including cable), water pipe and control switch. The submersible pump is a single-suction multi-stage vertical centrifugal pump; the submersible motor is a closed water-filled wet, vertical three-phase squirrel cage asynchronous motor. The motor and the water pump are directly connected through claw or single-key barrel couplings; equipped with three-core cables of different specifications; the starting equipment is air switches and auto-coupling pressure reducing starters of different capacity levels, and the water pipe is made of steel pipes of different diameters, connected by flanges. The high-lift electric pump is controlled by a gate valve.

[0003] After searching, a Chinese utility model patent (authorization announcement number: CN220555996U) provides a sealing connection mechanism for a submersible pump, including a sealing connection body and a sealing mechanism; the sealing mechanism seals and fixes the sealing connection body and the submersible pump; the sealing connection body can be fixed with an external water pipe, and the submersible pump is provided with a water outlet pipe; the sealing mechanism includes a sealing seat fixed to the inner wall of the water outlet pipe and a sealing member fixed to the sealing connection body, and the sealing member can be sealed and connected with the sealing seat. The sealing connection mechanism of a submersible pump of the utility model can make the sealing member and the sealing groove sealedly connected by the provided sealing connection body and the sealing mechanism, the sealing seat and the sealing member cooperate in use, so that the sealing connection body and the submersible pump are sealed and fixed, the sealing performance of the connection between the sealing connection body and the submersible pump can be improved by the provided sealing block, and the firmness of the connection between the joint member and the water outlet pipe can be improved by the provided fastening bolts, bolt caps and sealing gaskets.

[0004] The sealing connection mechanism of the above-mentioned prior art relies on only one sealing member to achieve the sealing cooperation between the submersible pump and the sealing connection body. However, such a sealing method may increase with the increase of depth, and thus the water pressure will also increase, resulting in a poor sealing effect. Therefore, this shortcoming needs to be improved urgently. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems. The utility model provides a submersible pump with a sealing connection mechanism, which has the advantage of improving sealing performance through multiple seals.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a submersible pump body, a sealing connection body that is sealed with the submersible pump body, the sealing connection body and the submersible pump body being detachably connected, the submersible pump body comprising a water outlet pipe fitting, the water outlet pipe fitting having a first annular groove, the sealing connection body comprising a connecting plate, the connecting plate having a second annular groove, a connecting piece being matched and installed between the first annular groove and the second annular groove, a sealing ring being sleeved on the outer periphery of the connecting piece, the sealing ring being sealingly matched and arranged between the water outlet pipe fitting and the connecting plate, the connecting piece having a first connecting groove on the outer periphery, a first sealing piece being sleeved in the first connecting groove, a second connecting groove for matching and installing the first sealing piece being provided in the first annular groove or the second annular groove, and the water outlet pipe fitting having a plurality of first connecting holes, a second connecting hole being provided on the connecting piece and matching with the first connecting hole, a third connecting hole being provided on the connecting plate and matching with the first connecting hole and the second connecting hole, and the first connecting hole, the second connecting hole and the third connecting hole being fixed by installing fastening screws.

[0007] Preferably, the connecting member has a through hole for water to pass through, the first annular groove or the second annular groove is provided with a third connecting groove, the third connecting groove is provided with a second sealing member, and the second sealing member is sealingly matched with the inner wall of the through hole.

[0008] Preferably, a first groove is provided on the inner wall of the first sealing member, and a protrusion provided in cooperation with the first groove is provided in the first connecting groove provided in cooperation with the first sealing member.

[0009] Preferably, a second groove is provided on the inner wall of the second sealing member, and a convex ring is provided in the third connecting groove which is provided in cooperation with the second sealing member and is provided in cooperation with the second groove.

[0010] Preferably, the water outlet pipe is an annular structure, and the outer diameter of the water outlet pipe is equal to that of the connecting plate.

[0011] Preferably, the water outlet pipe has a water outlet, the sealing connection body has a connecting channel therein, and the inner walls of the connecting channel, the water outlet and the through hole have the same size.

[0012] Preferably, a mounting plate for an external pipe fitting is provided at the other end of the sealing connection body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model provides a submersible pump with a sealing connection mechanism, wherein a connecting piece is arranged between a water outlet pipe fitting and a connecting plate, and a first sealing piece is arranged on the outer periphery of the connecting piece to seal with a first annular groove in the water outlet pipe fitting and a second annular groove in the connecting plate, and further, the sealing between the water outlet pipe fitting and the sealing connection body is further improved by a sealing ring sleeved on the middle part of the outer periphery of the connecting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the explosion three-dimensional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the sealing connection body of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the connector of the utility model;

[0019] Figure 5 It is a partial cross-sectional structural schematic diagram of the first sealing member of the utility model;

[0020] Figure 6 It is a partial cross-sectional structural schematic diagram of the second sealing member of the utility model;

[0021] Figure 7 for Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0022] Figure 8 for Figure 4 Schematic diagram of the enlarged structure of B.

[0023] Description of the drawings: 1. Submersible pump body; 10. First annular groove; 11. Water outlet pipe; 111. Water outlet; 112. First connecting hole; 2. First sealing member; 21. First groove; 3. Second sealing member; 31. Second groove; 4. Connecting member; 41. Sealing ring; 42. First connecting groove; 421. Protruding portion; 401. Through hole; 402. Second connecting hole; 5. Sealing connecting body; 51. Connecting plate; 501. Third connecting hole; 502. Connecting channel; 52. Second annular groove; 521. Second connecting groove; 522. Third connecting groove; 523. Protruding ring; 53. Mounting plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-Figure 8 As shown, a submersible pump with a sealing connection mechanism includes a submersible pump body 1, a sealing connection body 5 that is sealed with the submersible pump body 1, and the sealing connection body 5 is detachably connected to the submersible pump body 1. The submersible pump body 1 includes a water outlet pipe 11, and the water outlet pipe 11 has a first annular groove 10. The sealing connection body 5 includes a connecting plate 51, and the connecting plate 51 has a second annular groove 52. A connecting piece 4 is installed between the first annular groove 10 and the second annular groove 52. A sealing ring 41 is sleeved on the middle part of the outer periphery of the connecting piece 4, and the sealing ring 41 is sealingly arranged between the water outlet pipe 11 and the connecting plate 51. The outer periphery of the connecting piece 4 has a first connecting groove 42, and the first connecting groove 42 is sleeved with a first sealing piece 2. A second connecting groove 521 for the first sealing piece 2 to be installed is provided in the first annular groove 10 or the second annular groove 52. In this embodiment, the first annular groove 10 and the second annular groove 52 are both provided with a second connecting groove 521, and the outer periphery of the connecting piece 4 has two first A connecting groove 42, and two first connecting grooves 42 are respectively arranged on both sides of the sealing ring 41, and a first sealing member 2 is installed in each first connecting groove 42, so that when the connecting member 4 is installed in the first ring groove 10 and the second ring groove 52, the first connecting members 4 in the two first connecting grooves 42 can be sealed and connected with the first ring groove 10 and the second connecting groove 521 in the second ring groove 52, thereby further improving the sealing effect, and the water outlet pipe 11 has a plurality of first connecting holes 112, the connecting member 4 is provided with a second connecting hole 402 arranged in cooperation with the first connecting hole 112, and the connecting plate 51 is provided with a third connecting hole 501 arranged in cooperation with the first connecting hole 112 and the second connecting hole 402, and the first connecting hole 112, the second connecting hole 402 and the third connecting hole 501 are fixed by installing fastening screws, and further, a sealing gasket can be arranged between the fastening screw and the nut, thereby further improving the sealing effect.

[0026] The connecting member 4 has a through hole 401 for water to pass through, and the first annular groove 10 or the second annular groove 52 is provided with a third connecting groove 522. In this embodiment, the first annular groove 10 and the second annular groove 52 are both provided with a third connecting groove 522, and the third connecting groove 522 is provided with a second sealing member 3. In this embodiment, the second sealing member 3 is sealed with the inner wall of the through hole 401.

[0027] The first seal 2 has a first groove 21 on its inner wall, and the first connecting groove 42 matched with the first seal 2 has a protrusion 421 matched with the first groove 21, thereby improving the stability of the first seal 2 installed in the first connecting groove 42, and the protrusion of the first seal 2 and the part of the first connecting groove 42 are arranged in the second connecting groove 521, thereby further improving the stability of the first seal 2.

[0028] The second sealing member 3 has a second groove 31 on its inner wall, and the third connecting groove 522 matched with the second sealing member 3 has a convex ring 523 matched with the second groove 31 , thereby improving the stability of the second sealing member 3 installed in the third connecting groove 522 .

[0029] The water outlet pipe fitting 11 is an annular structure, and the outer diameters of the water outlet pipe fitting 11 and the connecting plate 51 are equal, and the outer diameters of the water outlet pipe fitting 11, the connecting plate 51 and the sealing ring 41 are also equal, so the water outlet pipe fitting 11, the connecting plate 51 and the sealing ring 41 are more beautiful after installation.

[0030] The water outlet pipe 11 has a water outlet 111 , and the sealing connection body 5 has a connecting channel 502 therein. The connecting channel 502 , the water outlet 111 , and the inner wall of the through hole 401 have the same size.

[0031] The sealing connection body 5 is a curved pipe and may also be a straight pipe, a T-shaped pipe or other pipes of any other shapes, and a mounting plate 53 for an external pipe is provided at the other end of the sealing connection body 5 .

[0032] A connector 4 is provided between the water outlet pipe 11 and the connecting plate 51, and a first sealing member 2 is provided on the outer periphery of the connector 4 to seal with the first annular groove 10 in the water outlet pipe 11 and the second annular groove 52 in the connecting plate 51. In addition, a sealing ring 41 is provided on the middle part of the outer periphery of the connector 4 to further improve the sealing between the water outlet pipe 11 and the sealing connection body 5. In addition, the second sealing member 3 is provided in the third connecting groove 522 to further improve the sealing.

[0033] Furthermore, by cooperating and connecting the first groove 21 in the first seal 2 with the protrusion 421 in the first connecting groove 42 and the second groove 31 in the second seal 3 with the protruding ring 523 in the third connecting groove 522, the installation stability of the first seal 2 and the second seal 3 can be further improved.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A submersible pump with a sealing connection mechanism, comprising a submersible pump body (1), a sealing connection body (5) sealingly matched with the submersible pump body (1), the sealing connection body (5) and the submersible pump body (1) being detachably connected, characterized in that: The submersible pump body (1) comprises a water outlet pipe (11), the water outlet pipe (11) having a first annular groove (10), the sealing connection body (5) comprising a connecting plate (51), the connecting plate (51) having a second annular groove (52), a connecting piece (4) being mounted between the first annular groove (10) and the second annular groove (52), the connecting piece (4) being sleeved with a sealing ring (41) on the outer periphery of the connecting piece (4), the sealing ring (41) being sealingly arranged between the water outlet pipe (11) and the connecting plate (51), the connecting piece (4) having a first connecting groove (42) on the outer periphery, the first connecting groove (42) having a first sealing piece (2 ), a second connecting groove (521) for cooperating with and mounting the first sealing member (2) is provided in the first annular groove (10) or the second annular groove (52), and the water outlet pipe member (11) has a plurality of first connecting holes (112), the connecting member (4) is provided with a second connecting hole (402) cooperating with the first connecting hole (112), the connecting plate (51) is provided with a third connecting hole (501) cooperating with the first connecting hole (112) and the second connecting hole (402), and the first connecting hole (112), the second connecting hole (402) and the third connecting hole (501) are fixed by installing fastening screws in them.

2. A submersible pump with a sealing connection mechanism according to claim 1, characterized in that: The connecting member (4) has a through hole (401) for water to pass through, the first annular groove (10) or the second annular groove (52) has a third connecting groove (522), the third connecting groove (522) has a second sealing member (3), and the second sealing member (3) is in sealing cooperation with the inner wall of the through hole (401).

3. A submersible pump with a sealing connection mechanism according to claim 1, characterized in that: The first sealing member (2) has a first groove (21) on its inner wall, and a first connecting groove (42) arranged in cooperation with the first sealing member (2) has a protrusion (421) arranged in cooperation with the first groove (21).

4. A submersible pump with a sealing connection mechanism according to claim 2, characterized in that: The second sealing member (3) has a second groove (31) on its inner wall, and a third connecting groove (522) arranged in cooperation with the second sealing member (3) has a convex ring (523) arranged in cooperation with the second groove (31).

5. A submersible pump with a sealing connection mechanism according to claim 1, characterized in that: The water outlet pipe member (11) is an annular structure, and the outer diameters of the water outlet pipe member (11) and the connecting plate (51) are equal.

6. A submersible pump with a sealing connection mechanism according to claim 1, characterized in that: The water outlet pipe (11) has a water outlet (111), and the sealing connection body (5) has a connecting channel (502) therein; the inner walls of the connecting channel (502), the water outlet (111) and the through hole (401) have the same dimensions.

7. A submersible pump with a sealing connection mechanism according to claim 1, characterized in that: The other end of the sealing connection body (5) is provided with a mounting plate (53) for an external pipe fitting.

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