Pump shell structure

Abstract

The utility model relates to a pump shell structure which comprises an upper shell, a lower shell, a base, a first connecting piece and a second connecting piece and is connected with a water outlet pipe. The upper shell comprises an inner barrel and an outer barrel, the outer barrel is arranged on the periphery of the inner barrel in a sleeving mode, a first flange is formed at the end, facing the lower shell, of the outer barrel, a first penetrating hole is formed in the outer barrel, and a second flange is arranged at the end, facing the lower shell, of the inner barrel; a second penetrating hole is formed in the first end of the lower shell, a third penetrating hole is formed in the second end of the lower shell, a first groove and a second groove are formed in the first end of the lower shell, the first flange is embedded in the first groove, and the second flange is embedded in the second groove; a fourth penetrating hole is formed in the end, close to the third penetrating hole, of the base. The first connecting piece is arranged in the first penetrating hole and the second penetrating hole in a penetrating mode. The second connecting piece is arranged in the third penetrating hole and the fourth penetrating hole in a penetrating mode. The water outlet pipe is in threaded connection with the lower shell. The connecting structure of the upper shell, the lower shell, the base and the water outlet pipe is simpler, and the disassembly and assembly efficiency is higher.

Description

Technical Field

[0001] The present application relates to the technical field of submersible pumps, and in particular to a pump casing structure. Background Art

[0002] Submersible pump is an important water-lifting equipment, suitable for water-lifting projects from deep wells, rivers, reservoirs and canals. When in use, the entire equipment is submerged underwater, and the motor of the submersible pump drives the impeller to rotate, so that mechanical energy or other external energy is transferred to the liquid, increasing the liquid energy, thereby achieving the purpose of water lifting.

[0003] The pump casing of a submersible pump is generally injection molded in one piece, which means that when one part of the pump casing is damaged, the entire pump casing needs to be replaced, which increases the maintenance cost of the submersible pump.

[0004] There are also some pump casings in the prior art. For example, a Chinese patent with authorization announcement number CN219509880U and publication date August 11, 2023 discloses a pump casing structure, including a pump casing main body. The pump casing main body includes a pump base, a pump body and a pump top seat arranged in sequence from bottom to top. A number of supports are fixedly installed on the lower surface of the pump base. A water outlet pipe is installed through the pump base. A connecting sleeve is detachably installed on the pump base and is detachably connected to the pump body through the connecting sleeve. The pump body and the pump top seat are detachably connected. A cable installation pipe is installed through the pump top seat and a cable is arranged in the cable installation pipe.

[0005] In this application, a pump base, a pump body and a pump top seat are arranged to form a pump casing structure, so that the entire pump casing structure is designed to be split, which is convenient for disassembly and maintenance operations when internal damage occurs in the later stage. However, the inventor believes that in the pump casing structure of this application, two rings are used to connect the pump top seat and the pump body, and two rings are used to connect the pump body and the pump base. The pump casing structure is relatively complicated, which will cause the operator to spend too much time on installation and reduce the efficiency of replacement. Utility Model Content

[0006] The present application provides a pump casing structure that is easy to disassemble and assemble.

[0007] The present application provides a pump casing structure adopting the following technical solution:

[0008] A pump housing structure, including an upper housing, a lower housing, a base, a first connecting member, and a second connecting member, which is connected to the water outlet pipe; the upper housing includes an inner cylinder and an outer cylinder, the outer cylinder is sleeved on the outer periphery of the inner cylinder, one end of the outer cylinder facing the lower housing forms a first flange, the outer cylinder is provided with a first through hole, and one end of the inner cylinder facing the lower housing is provided with a second flange; the lower housing has a second through hole at the first end and a third through hole at the second end, a first groove and a second groove are formed at the first end of the lower housing, the first groove and the second groove are annular structures, the first groove is arranged on the outer periphery of the second groove, the first flange is embedded in the first groove, and the second flange is embedded in the second groove; the base is provided with a fourth through hole at one end close to the third through hole; the first connecting member passes through the first through hole and the second through hole; the second connecting member passes through the third through hole and the fourth through hole; the water outlet pipe is threadedly connected to the lower housing.

[0009] Preferably, the lower housing further includes a guide block, and the guide block is arranged between the first groove and the second groove for guiding the first flange to be embedded into the first groove.

[0010] Preferably, the inner cylinder forms a first accommodating cavity; the lower housing forms a second accommodating cavity; the first accommodating cavity and the second accommodating cavity communicate and are located on the same central line.

[0011] Preferably, a guide groove is formed on the inner side of the lower housing; the guide groove communicates with the water outlet pipe.

[0012] Preferably, the base includes a seat body, a positioning member, and a bottom plate; the seat body forms a water inlet channel, and the water inlet channel communicates with the second accommodating cavity; the positioning member is connected to the seat body; the bottom plate is located below the water inlet channel and forms a positioning hole, and the positioning hole cooperates with the positioning member.

[0013] Preferably, the seat body is provided with a plurality of water through holes, and the plurality of water through holes are evenly distributed in the circumferential direction; there are a plurality of the positioning members, and the plurality of positioning members are arranged in one-to-one correspondence with the plurality of water through holes.

[0014] Preferably, one end of the bottom plate facing the water inlet channel is a conical structure and is located on the same central line as the water inlet channel; the plurality of water through holes are circumferentially distributed on the side of the bottom plate away from the water inlet channel.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. The present application simplifies the installation process between the upper shell, the lower shell and the base by providing a connection structure where the first flange is embedded in the first groove and the second flange is embedded in the second groove. The first connecting member passes through the first through-hole and the second through-hole, and the second connecting member passes through the third through-hole and the fourth through-hole. During installation, the first flange is embedded into the first groove, the second flange is embedded into the second groove, the first connecting member and the second connecting member are inserted into the corresponding positions, and the water outlet pipe is tightened onto the lower shell along the thread. During disassembly, the first connecting member and the second connecting member are removed, the upper shell, the lower shell and the base are separated, and the water outlet pipe is unscrewed to complete the disassembly. The operation is simple and the disassembly and assembly time is saved.

[0017] 2. By providing a water outlet pipe which is threadedly connected to the lower shell, the installation or disassembly can be completed simply by rotating along the thread, further saving the disassembly and assembly time.

[0018] 3. By providing a bottom plate with a conical surface structure, the bottom plate and the water inlet channel are on the same central line, and a plurality of water passing ports are circumferentially arranged on the side of the bottom plate away from the water inlet channel, so that the liquid converges into the water inlet channel along the inclined surface of the conical surface structure through the water passing ports, improving the water lifting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of a preferred embodiment of the present application.

[0020] Figure 2 is an exploded view of a preferred embodiment of the present application.

[0021] Figure 3 is a schematic diagram of the structure of the upper shell in a preferred embodiment of the present application Figure 1 .

[0022] Figure 4 is a schematic diagram of the structure of the upper shell in a preferred embodiment of the present application Figure 2 .

[0023] Figure 5 is a sectional view of the upper shell in a preferred embodiment of the present application.

[0024] Figure 6 is a schematic diagram of the structure of the lower shell in a preferred embodiment of the present application Figure 1 .

[0025] Figure 7 is a sectional view of the lower shell in a preferred embodiment of the present application.

[0026] Figure 8 is a partially enlarged view of the lower shell in a preferred embodiment of the present application.

[0027] Figure 9 is a schematic diagram of the structure of the lower shell in a preferred embodiment of the present applicationFigure 2 .

[0028] Figure 10 It is a schematic structure diagram of the base in a preferred embodiment of the present application Figure 1 .

[0029] Figure 11 It is a schematic structure diagram of the base in a preferred embodiment of the present application Figure 2 .

[0030] Explanation of reference numerals in the drawings: 1. Upper shell; 11. Outer cylinder; 111. Handle; 112. Power supply interface; 113. Float interface; 114. Installation groove; 115. First through hole; 116. First flange; 12. Inner cylinder; 121. First accommodating cavity; 122. Second flange; 2. Lower shell; 21. Second through hole; 22. Connecting pipe; 23. Guide groove; 24. Third through hole; 25. Second accommodating cavity; 26. Guide block; 27. First groove; 28. Second groove; 3. Base; 31. Base body; 311. Fourth through hole; 312. Water inlet channel; 313. Water passing port; 32. Positioning member; 321. Fifth screw hole; 33. Bottom plate; 331. Positioning hole; 332. Sixth screw hole; 4. First connecting member; 5. Second connecting member; 6. Water outlet pipe. Detailed implementation manners

[0031] The present application will be further described in detail below with reference to the drawings.

[0032] The present application provides a pump housing structure, as Figure 1 and 2 shown, including an upper shell 1, a lower shell 2, a base 3, a first connecting member 4, a second connecting member 5, and is connected to a water outlet pipe 6.

[0033] As Figure 3 shown, the upper shell 1 includes an inner cylinder 12 and an outer cylinder 11, and the outer cylinder 11 is sleeved on the outer periphery of the inner cylinder 12.

[0034] At the top of the outer cylinder 11, there are provided a handle 111, a power supply interface 112, and a float interface 113. The outer cylinder 11, the inner cylinder 12, the handle 111, the power supply interface 112, and the float interface 113 are integrally injection-molded by a mold. A clamping interface is formed on the handle 111. The power supply interface 112 is used to connect a cable, and the float interface 113 is connected to a float through a connecting wire, and the connecting wire is clamped in the clamping interface.

[0035] As Figure 4As shown in the figure, the outer cylinder body 11 is provided with a first through hole 115. Specifically, an installation groove 114 is formed in the direction of the outer cylinder body 11 towards the inner cylinder body 12. The installation groove 114 extends along the direction from the top of the outer cylinder body 11 to the lower housing 2. A first through hole 115 is provided at one end of the installation groove 114 close to the lower housing 2. The first through hole 115 is located between the outer cylinder body 11 and the inner cylinder body 12, and the first through hole 115 penetrates the outer cylinder body 11 along the direction from the top of the outer cylinder body 11 to the inner cylinder body 12. There are multiple installation grooves 114, and the multiple installation grooves 114 are evenly distributed in the circumferential direction. There are multiple first through holes 115, and the multiple first through holes 115 correspond to the multiple installation grooves 114 one by one. The first through hole 115 can be a first screw hole.

[0036] The inner cylinder body 12 forms a first accommodation cavity 121, and a second accommodation cavity 25 is formed in the lower housing 2. The first accommodation cavity 121 communicates with the second accommodation cavity 25 and is located on the same center line for placing the internal components of the water pump.

[0037] As Figure 5 shown in the figure, one end of the outer cylinder body 11 facing the lower housing 2 forms a first flange 116, and one end of the inner cylinder body 12 facing the lower housing 2 is provided with a second flange 122. Both the first flange 116 and the second flange 122 are annular structures. The first flange 116 is sleeved on the outer periphery of the second flange 122, and there is a gap between the first flange 116 and the second flange 122.

[0038] As Figures 6 to 8 shown in the figure, the first end of the lower housing 2 forms a first groove 27 and a second groove 28. The first groove 27 and the second groove 28 are annular structures. The first groove 27 is arranged on the outer periphery of the second groove 28. The first flange 116 is embedded in the first groove 27, and the second flange 122 is embedded in the second groove 28.

[0039] The lower housing 2 further includes a guide block 26. The guide block 26 is arranged between the first groove 27 and the second groove 28. The guide block 26 includes an inclined surface, and the inclined surface slopes downward along the direction from the second groove 28 to the first groove 27. The guide block 26 is used to guide the first flange 116 to be embedded into the first groove 27.

[0040] The first end of the lower housing 2 is provided with a second through hole 21. The second through hole 21 is located between the first groove 27 and the second groove 28. The second end is provided with a third through hole 24. The first end of the lower housing 2 is the end close to the upper housing 1, and the second end is the end close to the base 3.

[0041] The number of the second through holes 21 is the same as the number of the first through holes 115, and the multiple second through holes 21 and the multiple first through holes 115 are arranged in one-to-one correspondence. The second through hole 21 can be a second screw hole.

[0042] The first connecting member 4 is passed through the first through-hole 115 and the second through-hole 21, and the first connecting member 4 can be a first screw.

[0043] During the specific operation process, the operator embeds the first flange 116 into the first groove 27, embeds the second flange 122 into the second groove 28, then aligns the first through-hole 115 and the second through-hole 21 one by one, and finally controls the first connecting member 4 to move in the installation groove 114 along the direction from the top of the outer housing to the first through-hole 115, so that the first connecting member 4 is passed through the first through-hole 115 and the second through-hole 21, thereby realizing the connection between the upper housing 1 and the lower housing 2.

[0044] By providing the connection structure in which the first flange 116 is embedded in the first groove 27 and the second flange 122 is embedded in the second groove 28, the installation process between the upper housing 1 and the lower housing 2 becomes simpler. After the embedding is completed, the first connecting member 4 is passed through the first through-hole 115 and the second through-hole 21 to realize the fixation between the upper housing 1 and the lower housing 2. By providing the installation groove 114, an operation position is reserved, which is convenient for the operator to operate the first connecting member 4 to pass through, thus improving the operation efficiency.

[0045] As Figure 8 shown, a connecting pipe 22 and a guiding groove 23 are formed inside the lower housing 2. The guiding groove 23 is connected to the connecting pipe 22. One end of the connecting pipe 22 away from the guiding groove 23 is threadedly connected to a water outlet pipe 6. The guiding groove 23 is an arc-shaped groove with a long strip structure, and is used to guide the liquid to enter the water outlet pipe 6 through the connecting pipe 22.

[0046] By threadedly connecting the water outlet pipe 6 to the connecting pipe 22, it is convenient for the disassembly and assembly of the water outlet pipe 6. By providing the guiding groove 23, the water outlet efficiency is improved.

[0047] A third through-hole 24 is opened at one end of the lower housing 2 away from the first through-hole 115. There are multiple third through-holes 24, and the third through-hole 24 can be a third screw hole.

[0048] A fourth through-hole 311 is opened at one end of the base 3 close to the third through-hole 24.

[0049] As Figure 9 and 10 shown, the base 3 includes a seat body 31, a positioning member 32 and a bottom plate 33.

[0050] A fourth through-hole 311 is opened at one end of the seat body 31 close to the third through-hole 24. The fourth through-hole 311 penetrates through the seat body 31 along the direction from the seat body 31 to the lower housing 2. There are multiple fourth through-holes 311, and the multiple fourth through-holes 311 are arranged in one-to-one correspondence with the multiple third through-holes 24. The fourth through-hole 311 can be a fourth screw hole.

[0051] The second connecting member 5 passes through the third through-hole 24 and the fourth through-hole 311. Specifically, the second connecting member 5 passes through the fourth through-hole 311 and the third through-hole 24 in the direction from the seat body 31 to the lower housing 2. The number of the second connecting members 5 is the same as the number of the fourth through-holes 311. The second connecting member 5 can be a second screw.

[0052] The seat body 31 is formed with a water inlet passage 312. The water inlet passage 312 can be a cylindrical structure. The water inlet passage 312 penetrates through the seat body 31. The water inlet passage 312 communicates with the first accommodating cavity 121 and the second accommodating cavity 25 and is located on the same central line. The water inlet passage 312 is used for allowing liquid to pass through and enter the second accommodating cavity 25 and the first accommodating cavity 121.

[0053] The seat body 31 is provided with a plurality of water passing openings 313. The plurality of water passing openings 313 are circumferentially and uniformly distributed. The water passing openings 313 can be rectangular structures, circular structures or arc-shaped structures, which are not limited herein. The plurality of water passing openings 313 are used for allowing liquid in multiple directions to pass through.

[0054] There are a plurality of positioning members 32. The plurality of positioning members 32 are arranged in one-to-one correspondence with the plurality of water passing openings 313.

[0055] Specifically, the positioning member 32 is located on the side of the water passing opening 313 close to the water inlet passage 312.

[0056] In this way, impurities with larger sizes in the liquid can be filtered out better to prevent blockage by impurities.

[0057] One end of the positioning member 32 is connected to the seat body 31, and the other end is connected to the bottom plate 33. The bottom plate 33 is located below the water inlet passage 312 and is formed with a positioning hole 331. The positioning hole 331 cooperates with the positioning member 32.

[0058] Specifically, the positioning member 32 is integrally injection-molded with the seat body 31. The positioning member 32 is a positioning post. The positioning post is a cylindrical structure. The size of the positioning member 32 is not larger than the size of the positioning hole 331. One end of the positioning member 32 facing the bottom plate 33 is provided with a fifth screw hole 321. A sixth screw hole 332 is provided in the positioning hole 331. The sixth screw hole 332 and the fifth screw hole 321 are in one-to-one correspondence. The size of the sixth screw hole 332 is not larger than the size of the positioning hole 331. The third connecting member passes through the fifth screw hole 321 and the sixth screw hole 332 to connect the bottom plate 33 and the positioning member 32. The third connecting member can be a third screw.

[0059] In a specific embodiment, the size of the positioning hole 331 is the same as the size of the positioning post. The fifth screw hole 321 and the sixth screw hole 332 are located on the same central line.

[0060] One end of the bottom plate 33 facing the water inlet passage 312 is a conical structure and is on the same center line as the water inlet passage 312. A plurality of water through holes 313 are circumferentially arranged on the side of the bottom plate 33 away from the water inlet passage 312.

[0061] In this way, by setting the bottom plate 33 with a conical structure, the bottom plate 33 has a slope that slopes downward from the center to the outer circumference. After the liquid enters from the water through holes 313, it converges upward along the slope and then enters the water inlet passage 312, effectively improving the water absorption efficiency. The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A pump housing structure, characterized in that: It includes an upper housing (1), a lower housing (2), a base (3), a first connecting member (4), and a second connecting member (5), which is connected to the water outlet pipe (6); The upper housing (1) includes an inner cylinder (12) and an outer cylinder (11). The outer cylinder (11) is sleeved on the outer periphery of the inner cylinder (12). One end of the outer cylinder (11) facing the lower housing (2) forms a first flange (116). The outer cylinder (11) is provided with a first through hole (115). One end of the inner cylinder (12) facing the lower housing (2) is provided with a second flange (122); The lower housing (2), the first end is provided with a second through hole (21), the second end is provided with a third through hole (24). The first end of the lower housing (2) forms a first groove (27) and a second groove (28). The first groove (27) and the second groove (28) are annular structures. The first groove (27) is arranged on the outer periphery of the second groove (28). The first flange (116) is embedded in the first groove (27), and the second flange (122) is embedded in the second groove (28); The base (3), one end close to the third through hole (24) is provided with a fourth through hole (311); The first connecting member (4) is passed through the first through hole (115) and the second through hole (21); The second connecting member (5) is passed through the third through hole (24) and the fourth through hole (311); The water outlet pipe (6) is threadedly connected to the lower housing (2).

2. A pump housing structure according to claim 1, characterized in that: The lower housing (2) further includes a guide block (26). The guide block (26) is arranged between the first groove (27) and the second groove (28) for guiding the first flange (116) to be embedded into the first groove (27).

3. A pump housing structure according to claim 1, characterized in that: The inner cylinder (12) forms a first accommodating cavity (121); The lower housing (2) forms a second accommodating cavity (25); The first accommodating cavity (121) and the second accommodating cavity (25) are communicated and located on the same center line.

4. A pump housing structure according to claim 1, characterized in that: The inner side of the lower housing (2) forms a guide groove (23); The guide groove (23) is communicated with the water outlet pipe (6).

5. A pump housing structure according to claim 3, characterized in that: The base (3) includes a seat body (31), a positioning member (32) and a bottom plate (33); The seat body (31) forms a water inlet channel (312). The water inlet channel (312) is communicated with the second accommodating cavity (25); The positioning member (32) is connected to the seat body (31); The bottom plate (33) is located below the water inlet channel (312) and forms a positioning hole (331). The positioning hole (331) cooperates with the positioning member (32).

6. A pump housing structure according to claim 5, characterized in that: The seat body (31) is provided with a plurality of water through holes (313), and the plurality of water through holes (313) are circumferentially and evenly distributed; There are a plurality of the positioning members (32), and the plurality of positioning members (32) are arranged in one-to-one correspondence with the plurality of water through holes (313).

7. A pump housing structure according to claim 6, characterized in that: One end of the bottom plate (33) facing the water inlet passage (312) is a conical structure and is on the same center line as the water inlet passage (312); The plurality of water through holes (313) are circumferentially distributed on a side of the bottom plate (33) away from the water inlet passage (312).

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