Nozzle structure and injection pump thereof

Abstract

The utility model relates to the technical field of jet pump nozzles, and discloses a nozzle structure and a jet pump thereof. The compression structure is arranged on the wall face of the fixed pipe and used for compressing air in a cavity of the fixed pipe, the compression structure comprises a secondary pressing groove, a nozzle pipe, guide plates and a guide face, the secondary pressing groove is formed in the cavity of the fixed pipe, the nozzle pipe is detachably connected to the front wall face of the fixed pipe and is in a circular pipe shape, and the guide plates are symmetrically and fixedly connected into the cavity of the nozzle pipe; the guide faces are formed in the wall face of the guide plate, the nozzle pipe can communicate with the interior of a cavity of the fixed pipe, by arranging the compression structure, the flow speed of gas ejected out of the nozzle pipe can be increased through secondary compression of the primary pressing plate and the secondary pressing groove, and when the gas is exhausted from the nozzle pipe, the compressed gas can be guided through the symmetrical guide face interval; the compressed gas does not diffuse in a large area and is guided to move along with the distance formed by the symmetrical guide surfaces.

Description

Technical Field

[0001] This utility model belongs to the field of jet pump nozzles, specifically, it relates to a nozzle structure and its jet pump. Background Technology

[0002] The nozzle of the jet pump is the core component of the jet pump, and its design directly affects the pump's performance, efficiency, and applicable scenarios.

[0003] Commonly used nozzles typically utilize compressed gas to propel objects out of a pump. The structure of a common nozzle is basically to compress air through a small orifice. While this structure can compress the gas inside the pump, the compressed air diffuses over a large area, thus reducing the compression force. Therefore, the process of commonly used nozzles injecting gas still has room for optimization.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] To address the technical problem of insufficient gas diffusion area in commonly used nozzles, the basic concept of the technical solution adopted in this utility model is as follows:

[0006] A nozzle structure comprising:

[0007] Solid tube; a solid tube is a hollow cylindrical tube.

[0008] The compression structure is set on the wall of the solid tube to compress the air inside the solid tube cavity. The compression structure includes: a secondary pressure groove, a nozzle, a guide plate, and a guide surface. The secondary pressure groove is opened inside the cavity of the solid tube. The nozzle is detachably connected to the front wall of the solid tube and is cylindrical. The guide plate is symmetrically fixedly connected inside the cavity of the nozzle and the guide surface is opened on the wall of the guide plate. The nozzle can communicate with the cavity of the solid tube.

[0009] In a preferred embodiment of this utility model, the secondary pressure groove is an hourglass-shaped groove, the front end of the secondary pressure groove can fit against the rear wall of the guide plate, the guide plate is semi-bullet-shaped, the arc surface of the guide plate faces backward, the guide surface is located on the side flat surface of the guide plate, the guide surface is a wavy surface, and there are gaps between the symmetrical guide surfaces.

[0010] In a preferred embodiment of the present invention, the compression structure further includes an inner tube, a reflux groove, a first pressure plate, and a first pressure groove. The inner tube is fixedly connected to the inner wall of the solid tube, the reflux groove is opened on the front wall of the reflux groove, the first pressure plate is fixedly connected to the wall of the inner tube, and the first pressure groove is opened on the wall of the first pressure plate.

[0011] In a preferred embodiment of this utility model, the inner tube is in the shape of a circular tube, the return groove is an annular groove with a semi-circular cross-section, the first pressure plate is a plate with a V-shaped cross-section, and the first pressure groove is opened in the center of the first pressure plate with a circular opening.

[0012] In a preferred embodiment of the present invention, the wall of the solid tube is provided with a disassembly structure, the disassembly structure including connecting blocks, the connecting blocks being symmetrically fixedly connected to the front wall of the solid tube, the connecting blocks being semi-capsule-shaped blocks, and threaded grooves being provided through the front wall of the connecting blocks.

[0013] In a preferred embodiment of this utility model, identical connecting blocks are symmetrically fixedly connected to the rear wall of the nozzle tube. The positions of the connecting blocks on the nozzle tube wall and the connecting blocks on the fixed tube wall are aligned and fitted together. A stud is also installed in the threaded groove of each set of fitted connecting blocks.

[0014] A jet pump includes a pump body and a nozzle structure as described in any one of the above claims, wherein the fixed tube is fixedly connected to the cavity of the pump body.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. By setting up a compression structure, the flow rate of gas ejected from the nozzle can be increased through secondary compression by the primary pressure plate and the secondary pressure groove. When the gas is discharged from the nozzle, the compressed gas is guided by the symmetrical guide surface spacing, so that the compressed gas does not diffuse over a large area. Instead, it is guided and moved according to the spacing formed by the symmetrical guide surface, so that the compressed air has a stable linear motion and a high flow rate.

[0017] 2. By setting up a disassembly structure, the nozzle can be removed from the solid tube wall, which facilitates cleaning and maintenance of the solid tube and nozzle cavity.

[0018] 3. By designing a nozzle structure, the jet pump can achieve higher jet efficiency and smoother jet motion.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a cross-sectional view of the pump body and solid pipe assembly of this utility model;

[0022] Figure 2 This is a diagram of the assembly of the fixed tube and the nozzle tube of this utility model;

[0023] Figure 3 This is an exploded view of the fixed tube and nozzle tube of this utility model;

[0024] Figure 4 This is a cross-sectional view of the combination of the fixed tube and the nozzle tube of this utility model;

[0025] Figure 5 This is a three-dimensional cross-sectional view of the fixed pipe of this utility model.

[0026] In the diagram: 10, pump body; 20, solid pipe; 21, inner pipe; 22, return channel; 23, primary pressure plate; 24, primary pressure channel; 25, secondary pressure channel; 26, connecting block; 30, nozzle pipe; 31, guide plate; 32, guide surface. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0028] like Figure 1 , Figure 2 and Figure 5 As shown, a nozzle structure includes: a solid tube 20, which is a hollow cylindrical tube. This is existing technology and will not be described in detail here.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a compression structure is installed on the wall of the solid tube 20 to compress the air inside the cavity of the solid tube 20. The compression structure includes: a secondary pressure groove 25, a nozzle 30, a guide plate 31, and a guide surface 32. The secondary pressure groove 25 is opened inside the cavity of the solid tube 20. The nozzle 30 is detachably connected to the front wall of the solid tube 20 and is cylindrical. The guide plate 31 is symmetrically fixedly connected inside the cavity of the nozzle 30. The guide surface 32 is opened on the wall of the guide plate 31. The nozzle 30 can communicate with the cavity of the solid tube 20.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the secondary pressure groove 25 is an hourglass-shaped groove. The front end of the secondary pressure groove 25 can fit against the rear wall of the guide plate 31. The guide plate 31 is semi-bullet-shaped, with the arc surface of the guide plate 31 facing backward. The guide surface 32 is located on the side flat surface of the guide plate 31. The guide surface 32 is a wavy surface. There are gaps between the symmetrical guide surfaces 32. The compression structure also includes an inner tube 21, a return groove 22, a primary pressure plate 23, and a primary pressure groove 24. The inner tube 21 is fixedly connected to the inner wall of the cavity of the solid tube 20. The return groove 22 is opened on the front wall of the return groove 22. The primary pressure plate 23 is fixedly connected to the wall of the inner tube 21. The primary pressure groove 24 is opened on the wall of the primary pressure plate 23. The inner tube 21 is a circular tube. The return groove 22 is a circular groove with a semi-circular cross section. The primary pressure plate 23 is a plate with a V-shaped cross section. The primary pressure groove 24 is opened at the center of the primary pressure plate 23. The primary pressure groove 24 is a circular groove.

[0031] In practical use, when gas enters the rear end of the solid tube 20, the gas will pass through the cavity of the inner tube 21. When the gas enters the cavity of the inner tube 21, it will pass through the primary pressure groove 24 and then move towards the secondary pressure groove 25. At this time, the gas will be compressed from the opening of the secondary pressure groove 25. The gas in the space at the rear end of the secondary pressure groove 25 will be located between the front end of the inner tube 21 and the rear end of the secondary pressure groove 25 and gradually compressed from the opening of the secondary pressure groove 25. Then, after the gas passes through the opening of the secondary pressure groove 25, it will be located between the symmetrical guide plates 31 and then move forward through the gap between the symmetrical guide surfaces 32.

[0032] In summary, by setting up a compression structure, the flow rate of gas ejected from the nozzle 30 can be increased through secondary compression by the primary pressure plate 23 and the secondary pressure groove 25. Furthermore, when the gas is discharged from the nozzle 30, the compressed gas is guided by the symmetrical guide surfaces 32, preventing the compressed gas from spreading over a large area. The compressed gas moves with the spacing formed by the symmetrical guide surfaces 32, thus giving the compressed air a stable linear motion and a high flow rate.

[0033] like Figure 1 , Figure 2 and Figure 5 As shown, the wall of the solid tube 20 is provided with a disassembly structure, which includes a connecting block 26. The connecting block 26 is symmetrically fixedly connected to the front wall of the solid tube 20. The connecting block 26 is a semi-capsule-shaped block. A threaded groove is opened through the front wall of the connecting block 26. The same connecting block 26 is symmetrically fixedly connected to the rear wall of the nozzle tube 30. The positions of the connecting block 26 on the wall of the nozzle tube 30 and the connecting block 26 on the wall of the solid tube 20 are aligned and fitted. A stud is also installed in the threaded groove of each set of fitted connecting blocks 26.

[0034] In practical use, when it is necessary to inspect the cavity of the solid tube 20 and the cavity of the nozzle tube 30, the nozzle tube 30 can be disassembled by unscrewing the studs on the wall of each set of overlapping connecting blocks 26.

[0035] In summary, by setting up a disassembly structure, the nozzle tube 30 can be removed from the wall of the solid tube 20, which facilitates the cleaning and maintenance of the cavity of the solid tube 20 and the nozzle tube 30.

[0036] like Figure 1 As shown, a jet pump includes a pump body 10 and a nozzle structure as described above, wherein the fixed tube 20 is fixedly connected to the cavity of the pump body 10.

[0037] By designing a nozzle structure, the jet pump can achieve higher jet efficiency and smoother jet motion.

[0038] Working principle: First, when gas enters the rear end of the solid tube 20, the gas will pass through the cavity of the inner tube 21. When the gas enters the cavity of the inner tube 21, it will pass through the primary pressure groove 24 and then move towards the secondary pressure groove 25. At this time, the gas will be compressed from the opening of the secondary pressure groove 25. The gas in the space at the rear end of the secondary pressure groove 25 will be located between the front end of the inner tube 21 and the rear end of the secondary pressure groove 25 and gradually compressed from the opening of the secondary pressure groove 25. Then, after passing through the opening of the secondary pressure groove 25, the gas will be located between the symmetrical guide plates 31 and then move forward through the gap between the symmetrical guide surfaces 32.

[0039] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A nozzle structure, characterized by, include: Solid tube (20), solid tube (20) is a hollow cylindrical tube; The compression structure is set on the wall of the solid tube (20) to compress the air in the cavity of the solid tube (20). The compression structure includes: a secondary pressure groove (25), a nozzle (30), a guide plate (31) and a guide surface (32). The secondary pressure groove (25) is opened in the cavity of the solid tube (20). The nozzle (30) is detachably connected to the front wall of the solid tube (20). The nozzle (30) is in the shape of a round tube. The guide plate (31) is symmetrically fixedly connected in the cavity of the nozzle (30). The guide surface (32) is opened on the wall of the guide plate (31). The nozzle (30) can communicate with the cavity of the solid tube (20).

2. A nozzle structure according to claim 1, wherein The secondary pressure groove (25) is an hourglass-shaped groove. The front end of the secondary pressure groove (25) can fit against the rear wall of the guide plate (31). The guide plate (31) is semi-bullet-shaped, with the arc surface of the guide plate (31) facing backward. The guide surface (32) is located on the flat side surface of the guide plate (31). The guide surface (32) is wavy, and there are gaps between the symmetrical guide surfaces (32).

3. A nozzle structure according to claim 1, wherein The compression structure also includes an inner tube (21), a reflux groove (22), a first pressure plate (23), and a first pressure groove (24). The inner tube (21) is fixedly connected to the inner wall of the solid tube (20). The reflux groove (22) is opened on the front wall of the reflux groove (22). The first pressure plate (23) is fixedly connected to the wall of the inner tube (21). The first pressure groove (24) is opened on the wall of the first pressure plate (23).

4. A nozzle structure according to claim 3, wherein The inner tube (21) is in the shape of a round tube, the return groove (22) is a circular groove with a semi-circular cross section, the first pressure plate (23) is a plate with a V-shaped cross section, and the first pressure groove (24) is opened in the center of the first pressure plate (23) with a circular opening.

5. A nozzle structure according to claim 1, characterized in that, The wall of the solid tube (20) is provided with a disassembly structure, which includes a connecting block (26). The connecting block (26) is symmetrically fixedly connected to the front wall of the solid tube (20). The connecting block (26) is a semi-capsule-shaped block, and a threaded groove is opened through the front wall of the connecting block (26).

6. A nozzle structure according to claim 5, characterized in that, The same connecting blocks (26) are symmetrically fixedly connected to the rear wall of the nozzle tube (30). The positions of the connecting blocks (26) on the wall of the nozzle tube (30) and the connecting blocks (26) on the wall of the fixed tube (20) are aligned and fitted together. Each set of fitted connecting blocks (26) also has a stud installed in the threaded groove.

7. A jet pump, comprising a pump body (10), characterized in that, It also includes a nozzle structure according to any one of claims 1-6, wherein the fixed tube (20) is fixedly connected to the cavity of the pump body (10).

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