Volute based on additive manufacturing

Abstract

The utility model relates to the technical field of water pump shells, and discloses a volute based on additive manufacturing, which comprises two volute parts, the outer side of one volute part is fixedly connected with a plurality of overhaul pipes, the middle part of the inner side of each overhaul pipe is provided with an annular groove, the rear part of the inner side of each overhaul pipe is provided with a sealing groove, and the outer side of the volute part is fixedly connected with the corresponding overhaul pipe. A sliding groove is formed in the inner side of the overhaul pipe, a plug cover is slidably connected to the inner side of the overhaul pipe, a plurality of balls are installed in the plug cover, a clamping block is fixedly connected to the outer side of the plug cover, and a mounting groove is formed in the outer side of the plug cover. According to the utility model, through the mutual cooperation of the overhaul pipe, the annular groove, the sealing groove, the sliding groove, the plug cover, the ball, the clamping block and other structures, after the plug cover is inserted into the overhaul pipe, the triangular block is rotated to enable the clamping block to be clamped into the annular groove and staggered from the sliding groove, so that the plug cover can be quickly installed, and the installation is more convenient than screwing through a bolt.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump casings, in particular to a volute based on additive manufacturing. Background Art

[0002] A water pump is a machine used to transport liquids or pressurize liquids. It converts mechanical energy into kinetic energy and pressure energy of liquids through the rotation of the impeller, thereby achieving liquid transportation. Water pumps are widely used in agricultural irrigation, urban water supply, industrial production, sewage treatment and other fields. According to different working principles, water pumps can be divided into centrifugal pumps, axial flow pumps, mixed flow pumps, reciprocating pumps, rotor pumps and other types. The volute structure of the water pump has a spiral shape, that is, a spiral channel that gradually expands from the inlet to the outlet, and a gradual cross-section with a gradually changing inner cavity cross-section. Its functions include collecting high-speed water flow thrown out from the impeller, making the water flow transition smoothly, converting part of the kinetic energy into pressure energy to increase the outlet pressure, and making the water flow flow more evenly to the outlet, thereby reducing hydraulic loss and flow turbulence. At the same time, it also provides certain support and fixation for components such as the impeller.

[0003] The water pump inspection port improved by the volute in the prior art is used to inspect the inside of the water pump. After the inspection, the cover will be closed and tightened with multiple bolts, which is troublesome to install. Therefore, a volute based on additive manufacturing is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a volute based on additive manufacturing, aiming to improve the problem that the water pump inspection port improved with a volute in the prior art is used to inspect the inside of the water pump, and after the inspection, a cover will be put on and tightened with multiple bolts, which makes the installation more troublesome.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a volute based on additive manufacturing, comprising two volute parts, wherein a plurality of inspection pipes are fixedly connected to the outer side of one of the volute parts, an annular groove is opened in the middle part of the inner side of the inspection pipe, a sealing groove is opened in the inner rear part of the inspection pipe, a sliding groove is opened on the inner side of the inspection pipe, a plug cover is slidably connected to the inner side of the inspection pipe, a plurality of ball bearings are installed inside the plug cover, a clamping block is fixedly connected to the outer side of the plug cover, an installation groove is opened on the outer side of the plug cover, a sealing ring is sleeved on the inner side of the installation groove, a triangular block is fixedly connected to one end of the plug cover, and a plurality of assembly mechanisms are installed on the outer side of the volute part.

[0006] Furthermore, the assembly mechanism comprises two fixed blocks, the outer sides of the fixed blocks are fixedly connected to the outer sides of the volute member, and the interiors of the two fixed blocks are slidably connected with sliding columns.

[0007] Furthermore, one end of the sliding column is fixedly connected to a limiting block, and the outer side of the sliding column is fixedly connected to a push plate.

[0008] Furthermore, a spring is sleeved on the outside of the sliding column, one end of the spring is fixedly connected to the outside of the push plate, and the other end of the spring is fixedly connected to the outside of the fixed block.

[0009] Furthermore, a plurality of assembly blocks are fixedly connected to the outer side of the volute member, and clamping holes are provided inside the assembly blocks.

[0010] Furthermore, the outer side of the sliding column is slidably connected to the inner sides of the two clamping holes at the same time.

[0011] Furthermore, the outer side of the clamping block is slidably connected to the inner side of the sliding groove, and the outer side of the clamping block is slidably connected to the inner side of the annular groove.

[0012] Furthermore, the outer side of the sealing ring is fitted with the inner side of the sealing groove, and the outer side of the ball is rollingly connected with the inner side of the annular groove.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, through the mutual cooperation of the inspection pipe, the annular groove, the sealing groove, the slide groove, the plug cover, the ball bearing, the clamping block and the like, after the plug cover is inserted into the inspection pipe, the triangular block is rotated so that the clamping block is inserted into the annular groove and staggered with the slide groove, so that the plug cover can be quickly installed, which is more convenient than tightening by bolts.

[0015] 2. In the utility model, through the mutual cooperation of the fixed block, the sliding column, the limit block, the push plate, the spring, the combination block, the clamping hole and other structures, the sliding column is driven to move, so that one end of the sliding column is pulled out from the inside of the two clamping holes. After all the sliding columns are pulled out, the two volute parts can be easily separated, so that the internal maintenance of the volute body is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the volute based on additive manufacturing proposed in the utility model;

[0017] Figure 2 A schematic diagram of the local structure of the volute based on additive manufacturing proposed in the utility model;

[0018] Figure 3 This is a schematic diagram of the sliding column structure of the volute based on additive manufacturing proposed in the utility model.

[0019] Legend:

[0020] 1. Volute; 2. Inspection pipe; 3. Annular groove; 4. Sealing groove; 5. Slide groove; 6. Plug cover; 7. Ball bearing; 8. Clamping block; 9. Mounting groove; 10. Sealing ring; 11. Triangular block; 12. Fixed block; 13. Sliding column; 14. Limiting block; 15. Push plate; 16. Spring; 17. Combination block; 18. Clamping hole. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1-Figure 3 , the utility model provides an embodiment: a volute based on additive manufacturing, including two volute parts 1, the volute part 1 is made by metal additive manufacturing, metal additive manufacturing is an emerging manufacturing technology, also known as 3D printing metal, with the advantages of manufacturing objects of complex shapes, no molds, rapid prototyping and small batch production, personalized objects, and reducing material waste, etc., by stacking metal powder or wire layer by layer to form a three-dimensional object, one of the volute parts 1 is fixedly connected to the outside of a plurality of inspection pipes 2, an annular groove 3 is opened in the middle of the inner side of the inspection pipe 2, a sealing groove 4 is opened at the inner rear of the inspection pipe 2, a slide groove 5 is opened on the inside of the inspection pipe 2, a plug cover 6 is slidably connected to the inside of the inspection pipe 2, a plurality of balls 7 are installed inside the plug cover 6, and a block 8 is fixedly connected to the outside of the plug cover 6 , align the card block 8 with the slide groove 5, and then push the plug cover 6 into the interior of the inspection pipe 2. At this time, the ball 7 will be stuck on the inner side of the annular groove 3, so that the plug cover 6 will not fall off easily. There are multiple springs inside the plug cover 6 that correspond to the ball 7 one by one, so that the ball 7 can be in a supported state. An installation groove 9 is opened on the outside of the plug cover 6, and a sealing ring 10 is sleeved on the inner side of the installation groove 9. A triangular block 11 is fixedly connected to one end of the plug cover 6. The triangular block 11 is convenient for the user to operate the plug cover 6. The plug cover 6 completely enters the interior of the inspection pipe 2, and the sealing ring 10 will slide into the interior of the sealing groove 4 to seal the inspection pipe 2. Then rotate the triangular block 11 to make the card block 8 slide along the inner side of the annular groove 3. At this time, the card block 8 will be staggered with the slide groove 5, and the plug cover 6 will be stably installed in the interior of the inspection pipe 2. Multiple assembly mechanisms are installed on the outside of the volute 1.

[0023] Reference Figure 1-Figure 3The assembly mechanism includes two fixed blocks 12, the outer side of the fixed block 12 is fixedly connected to the outer side of the volute 1, the inner side of the two fixed blocks 12 is slidably connected with a sliding column 13, one end of the sliding column 13 is fixedly connected to a limiting block 14, the limiting block 14 can prevent the sliding column 13 from falling off, the outer side of the sliding column 13 is fixedly connected to a push plate 15, the outer side of the sliding column 13 is sleeved with a spring 16, one end of the spring 16 is fixedly connected to the outer side of the push plate 15, and the other end of the spring 16 is fixedly connected to the outer side of the fixed block 12, and the elastic force of the spring 16 can make The sliding column 13 can be quickly reset, and the other end of the sliding column 13 is a pointed end, which is convenient for passing into the interior of the two clamping holes 18. The outer side of the volute component 1 is fixedly connected with multiple combination blocks 17, and the interior of the combination blocks 17 is provided with clamping holes 18. The outer side of the sliding column 13 is slidably connected with the inner sides of the two clamping holes 18 at the same time. When the volute component 1 needs to be disassembled for maintenance, the user can push the push plate 15 to pull one end of the sliding column 13 out from the interior of the two clamping holes 18, so that the two volute components 1 will be separated, so that the interior of the volute component 1 can be easily maintained.

[0024] Reference Figure 1-Figure 3 The outer side of the block 8 is slidably connected to the inner side of the slide groove 5, the outer side of the block 8 is slidably connected to the inner side of the annular groove 3, the outer side of the sealing ring 10 is fitted with the inner side of the sealing groove 4, and the outer side of the ball 7 is rollingly connected to the inner side of the annular groove 3. The ball 7 can play an auxiliary locking effect to prevent the plug cover 6 from falling off. The cooperation between the sealing ring 10 and the sealing groove 4 can improve the airtightness inside the pipeline.

[0025] Working principle: when the internal inspection of the volute 1 is completed through the inspection tube 2, the block 8 can be aligned with the slide groove 5, and then the plug cover 6 can be pushed into the interior of the inspection tube 2. At this time, the ball 7 will be stuck on the inner side of the annular groove 3, so that the plug cover 6 will not fall off easily. At the same time, the sealing ring 10 will slide to the inside of the sealing groove 4 to seal the inspection tube 2. Then, the triangular block 11 is rotated to make the block 8 slide along the inner side of the annular groove 3. At this time, the block 8 will be offset from the slide groove 5, and the plug cover 6 will be stably installed in the interior of the inspection tube 2. When the volute 1 needs to be disassembled for maintenance, the user can push the push plate 15 to pull one end of the sliding column 13 out from the inside of the two clamping holes 18, so that the two volutes 1 will be separated, so that the interior of the volute 1 can be easily repaired.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A volute based on additive manufacturing, comprising two volute parts (1), characterized in that: A plurality of inspection pipes (2) are fixedly connected to the outer side of one of the volute parts (1), an annular groove (3) is provided in the middle of the inner side of the inspection pipe (2), a sealing groove (4) is provided in the inner rear part of the inspection pipe (2), a sliding groove (5) is provided in the inner side of the inspection pipe (2), a plug cover (6) is slidably connected to the inner side of the inspection pipe (2), a plurality of balls (7) are installed inside the plug cover (6), a clamping block (8) is fixedly connected to the outer side of the plug cover (6), an installation groove (9) is provided on the outer side of the plug cover (6), a sealing ring (10) is sleeved on the inner side of the installation groove (9), a triangular block (11) is fixedly connected to one end of the plug cover (6), and a plurality of assembly mechanisms are installed on the outer side of the volute part (1).

2. The volute based on additive manufacturing according to claim 1, characterized in that: The assembly mechanism comprises two fixed blocks (12), the outer sides of the fixed blocks (12) are fixedly connected to the outer side of the volute (1), and the interiors of the two fixed blocks (12) are slidably connected with sliding columns (13).

3. The volute based on additive manufacturing according to claim 2, characterized in that: One end of the sliding column (13) is fixedly connected to a limiting block (14), and the outer side of the sliding column (13) is fixedly connected to a push plate (15).

4. The volute based on additive manufacturing according to claim 3, characterized in that: The sliding column (13) is sleeved with a spring (16) on its exterior, one end of the spring (16) is fixedly connected to the exterior of the push plate (15), and the other end of the spring (16) is fixedly connected to the exterior of the fixed block (12).

5. The volute based on additive manufacturing according to claim 1, characterized in that: A plurality of assembly blocks (17) are fixedly connected to the outer side of the volute member (1), and a clamping hole (18) is provided inside the assembly block (17).

6. The volute based on additive manufacturing according to claim 4, characterized in that: The outer side of the sliding column (13) is slidably connected to the inner sides of the two clamping holes (18) at the same time.

7. The volute based on additive manufacturing according to claim 1, characterized in that: The outer side of the clamping block (8) is slidably connected to the inner side of the sliding groove (5), and the outer side of the clamping block (8) is slidably connected to the inner side of the annular groove (3).

8. The volute based on additive manufacturing according to claim 1, characterized in that: The outer side of the sealing ring (10) is fitted with the inner side of the sealing groove (4), and the outer side of the ball (7) is rollingly connected with the inner side of the annular groove (3).

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