A highly airtight jet injector

Abstract

This utility model discloses a jet ejector with strong sealing performance, comprising an ejector body and a water inlet. The water inlet is internally connected to one end of the ejector body, and a nozzle is provided at one end of the water inlet. An outlet is provided at the other end of the ejector body, and a suction port is provided at one end of the ejector body. The key feature is that a sleeve is fixedly provided on the outer side of the end of the ejector body away from the outlet, and a retaining ring is fixedly provided on the outer side of the water inlet. The retaining ring is located between the ejector body and the sleeve. A fixing structure is also included, disposed inside the sleeve and the retaining ring, for fixing the retaining ring. The advantages of this utility model compared to existing technologies are: it can improve the sealing effect of the jet ejector and facilitates the disassembly and installation of the water inlet.

Description

Technical Field

[0001] This utility model relates to the field of jet ejector technology, specifically a jet ejector with strong sealing performance. Background Technology

[0002] The jet ejector uses the water pressure from the inlet pipe to eject water at high speed from the outside of the nozzle, creating a local vacuum around the nozzle and generating negative pressure. This draws dry powder or liquid into the powder inlet pipe, where it mixes with the high-speed water flow to prepare a solution of the required concentration. When the jet ejector has poor sealing or the water velocity is insufficient, the water pressure becomes unstable, and water can easily enter the powder inlet pipe from the nozzle, severely affecting the mixing effect.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a jet with strong sealing performance, which can improve the sealing effect of the jet and facilitate the disassembly and installation of the water inlet.

[0005] To solve the above problems, the technical solution of this utility model is as follows: a jet ejector with strong sealing performance, comprising an ejector body and a water inlet, wherein the water inlet is internally connected to one end of the ejector body, a nozzle is provided at one end of the water inlet, a water outlet is provided at the other end of the ejector body, and a suction port is provided at one end of the ejector body. The ejector body is characterized in that a sleeve is fixedly provided on the outer side of the end away from the water outlet, and a retaining ring is fixedly provided on the outer side of the water inlet, the retaining ring being located between the ejector body and the sleeve. The device further includes:

[0006] A fixing structure is provided inside the sleeve and the insert ring to fix the insert ring.

[0007] Preferably, one end of the insert ring is provided with two symmetrical insert rods, and the bottom of the sleeve is provided with a slot for use with the insert rods.

[0008] Preferably, the fixing structure includes a housing, which is fixedly connected to the outside of the sleeve. The housing has a slidable positioning rod inside and a cavity extending into the inside of the sleeve. One end of the positioning rod is inserted into the inside of a ring.

[0009] Preferably, one end of the positioning rod is provided with a pull ring, and a movable plate is fixedly sleeved on the surface of the positioning rod.

[0010] Preferably, the movable plate is slidably connected inside the cavity, the movable plate is located outside the insertion ring, and a spring is sleeved on the surface of the positioning rod, the spring being located between the movable plate and the housing.

[0011] Preferably, an annular sealing ring is fixedly provided inside the jet injector body.

[0012] Preferably, the sealing ring is located between the ejector body and the nozzle, and the sealing ring is in contact with the inner wall of the ejector body and the outer wall of the nozzle. A sealing layer is provided between the inner wall of the ejector body and the outer wall of the inlet, and between the outer wall of the ejector body and the inner wall of the insert ring.

[0013] The advantages of this invention compared to existing technologies are as follows:

[0014] (1) The ejector body of this utility model has a fixed ring sealing ring installed inside. The sealing ring fits against the inner wall of the ejector body and the outer wall of the nozzle. A sealing layer is installed between the inner wall of the ejector body and the outer wall of the inlet, and between the outer wall of the ejector body and the inner wall of the insert ring. The installation and fixing structure facilitates the installation and disassembly of the inlet and ensures the sealing of the inlet. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a jet injector with strong sealing performance according to this utility model.

[0016] Figure 2 This is a three-dimensional schematic diagram of the internal structure of a jet injector with strong sealing performance according to this utility model.

[0017] Figure 3 This is an enlarged view of point A of a jet injector with strong sealing performance according to this utility model.

[0018] Figure 4 This is an enlarged view of section B of a jet injector with strong sealing performance according to this utility model.

[0019] As shown in the figure: 1. Jet ejector body; 2. Nozzle; 3. Inlet; 4. Outlet; 5. Suction port; 6. Sleeve; 7. Insert ring; 8. Fixing structure; 9. Insert rod; 10. Slot; 11. Housing; 12. Positioning rod; 13. Pull ring; 14. Cavity; 15. Moving plate; 16. Spring; 17. Sealing ring. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0021] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0022] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figure 1-4 As shown, a jet ejector with strong sealing performance includes a jet ejector body 1 and an inlet 3. The inlet 3 is internally connected to one end of the jet ejector body 1. A nozzle 2 is installed at one end of the inlet 3. An outlet 4 is installed at the other end of the jet ejector body 1. An inlet 5 is installed at one end of the jet ejector body 1. A sleeve 6 is fixedly installed on the outer side of the end of the jet ejector body 1 away from the outlet 4. The inlet 3, the outlet 4, and the sleeve 6 can all be fitted with flanges or have threads for connection with other equipment or pipelines.

[0024] A plug ring 7 is fixedly installed on the outside of the inlet 3. The plug ring 7 is located between the jet body 1 and the sleeve 6. The fixing structure 8 is set inside the sleeve 6 and the plug ring 7 to fix the plug ring 7.

[0025] Two symmetrical insert rods 9 are installed at one end of the insert ring 7. A slot 10 for use with the insert rods 9 is opened at the bottom of the sleeve 6. When the water inlet 3 is inserted into the body of the jet injector 1, the insert ring 7 is inserted between the water inlet 3 and the sleeve 6, and at the same time the insert rods 9 are inserted into the slot 10.

[0026] An annular sealing ring 17 is fixedly installed inside the jet ejector body 1. The sealing ring 17 is located between the jet ejector body 1 and the nozzle 2. The sealing ring 17 fits against the inner wall of the jet ejector body 1 and the outer wall of the nozzle 2. Sealing layers are installed between the inner wall of the jet ejector body 1 and the outer wall of the inlet 3, and between the outer wall of the jet ejector body 1 and the inner wall of the insert ring 7, to ensure the sealing of the inlet 3.

[0027] The fixing structure 8 includes a housing 11, which is fixedly installed on the outside of the sleeve 6. A slidable positioning rod 12 is installed inside the housing 11. A cavity 14 is opened inside the housing 11 and extends into the inside of the sleeve 6. One end of the positioning rod 12 is inserted into the inside of the insertion ring 7. When the insertion ring 7 is located between the jet body 1 and the sleeve 6, the positioning rod 12 is inserted into the inside of the insertion ring 7 for fixation. There are at least two sets of fixing structures 8, and multiple fixing structures 8 are arranged in a circumferential array on the outside of the sleeve 6.

[0028] A pull ring 13 is installed at one end of the positioning rod 12, which can be easily pulled by the pull ring 13. A movable plate 15 is fixedly mounted on the surface of the positioning rod 12. The movable plate 15 is slidably connected inside the cavity 14. When the positioning rod 12 moves, it can drive the movable plate 15 to move synchronously.

[0029] The movable plate 15 is located outside the insert ring 7. A spring 16 is fitted on the surface of the positioning rod 12. The spring 16 is located between the movable plate 15 and the housing 11. Without the action of external force, the spring 16 can provide resistance to the movable plate 15 and prevent the movable plate 15 from moving. Thus, the positioning rod 12 fixes the insert ring 7 and can squeeze the sealing ring 17 and the sealing layer to ensure the sealing of the water inlet 3.

[0030] In practical use, first install the inlet 3, insert the end of the inlet 3 where the nozzle 2 is installed into the inside of the jet injector body 1, pull the pull ring 13 to drive the positioning rod 12 to move, and then drive the moving plate 15 to move synchronously. The spring 16 is compressed. At this time, the insertion ring 7 is inserted between the jet injector body 1 and the sleeve 6. Release the pull ring 13 and the spring 16 returns to its original state. The insertion ring 7 is fixed by the positioning rod 12 driven by the moving plate 15.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A jet ejector with strong sealing performance, comprising an ejector body (1) and an inlet (3), wherein the inlet (3) is internally connected to one end of the ejector body (1), a nozzle (2) is provided at one end of the inlet (3), an outlet (4) is provided at the other end of the ejector body (1), and a suction port (5) is provided at one end of the ejector body (1), characterized in that, A sleeve (6) is fixedly provided on the outer side of the jet ejector body (1) away from the outlet (4), and a plug ring (7) is fixedly provided on the outer side of the inlet (3). The plug ring (7) is located between the jet ejector body (1) and the sleeve (6), and also includes: A fixing structure (8) is provided inside the sleeve (6) and the insert ring (7) for fixing the insert ring (7).

2. The jet injector with strong sealing performance according to claim 1, characterized in that: The insert ring (7) has two symmetrical insert rods (9) at one end, and the sleeve (6) has a slot (10) at the bottom inside for use with the insert rods (9).

3. The jet injector with strong sealing performance according to claim 1, characterized in that: The fixing structure (8) includes a housing (11), which is fixedly connected to the outside of the sleeve (6). The housing (11) has a sliding positioning rod (12) inside, and a cavity (14) inside, which extends into the sleeve (6). One end of the positioning rod (12) is inserted into the insert ring (7).

4. The jet injector with strong sealing performance according to claim 3, characterized in that: One end of the positioning rod (12) is provided with a pull ring (13), and a movable plate (15) is fixedly sleeved on the surface of the positioning rod (12).

5. The jet injector with strong sealing performance according to claim 4, characterized in that: The movable plate (15) is slidably connected inside the cavity (14). The movable plate (15) is located outside the insert ring (7). A spring (16) is sleeved on the surface of the positioning rod (12). The spring (16) is located between the movable plate (15) and the housing (11).

6. The jet injector with strong sealing performance according to claim 1, characterized in that: The ejector body (1) is fixedly provided with an annular sealing ring (17).

7. The jet injector with strong sealing performance according to claim 6, characterized in that: The sealing ring (17) is located between the jet ejector body (1) and the nozzle (2). The sealing ring (17) fits against the inner wall of the jet ejector body (1) and the outer wall of the nozzle (2). A sealing layer is provided between the inner wall of the jet ejector body (1) and the outer wall of the inlet (3), and between the outer wall of the jet ejector body (1) and the inner wall of the insert ring (7).

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