Ejector with one-way valve structure

Abstract

The utility model discloses an ejector with a one-way valve structure, and particularly relates to the technical field of ejectors, which comprises an ejector main body and a main flow pipe fixedly connected with one side of the outer wall of the ejector main body. The rotating plate is arranged on the outer wall of the rotating rod, so that the positioning rod can return to the initial position, main fluid needs to be introduced into the main flow pipeline outside the ejector, then auxiliary fluid needs to be introduced into the auxiliary flow pipeline, the follow-up auxiliary fluid can accelerate the main fluid in the ejector, a small amount of auxiliary fluid can flow reversely, and therefore the main fluid in the ejector can be accelerated. At the moment, a one-way valve needs to be additionally arranged in the slave fluid pipeline, so that the flow speed of a main body in the slave fluid pipeline cannot be influenced by reverse flowing of a small amount of slave fluid, but when the one-way valve is used for a long time, the interior of the one-way valve is prone to problems, and the one-way valve outside the equipment is convenient to replace; and therefore, the working efficiency of the subsequent ejector is not reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ejectors, in particular to an ejector with a one-way valve structure. Background Art

[0002] The ejector is a device that uses a high-speed, high-energy flow (liquid flow, air flow or other material flow) to eject another low-speed, low-energy flow. The jet enters the mixing chamber through a contracting nozzle, and is surrounded by the ejected flow. Through the mixing effect of the boundary, the ejected flow transfers energy to the ejected flow. The mixing zone formed by the mixing gradually expands and fills the entire mixing chamber. After a period of mixing, the flow becomes almost uniform at the outlet of the mixing chamber. There is usually a diffuser at the back to reduce the flow rate and increase the static pressure. The ejected airflow can be subsonic or supersonic. The ejector nozzle can be in the center of the pipe or around the pipe. In a gas flow system (such as a high-speed wind tunnel), the ejector acts as a power source to do work on the ejected gas and increase its energy.

[0003] At present, when the ejector on the market is in use, it is necessary to pass fluids with different flow rates into the ejector through two pipes. In actual use, it is necessary to pass the main fluid into the mainstream pipe outside the ejector, and then pass the slave fluid through the slave flow pipe, so that the subsequent slave fluid can accelerate the main fluid inside the ejector. Because the slave fluid will contact and collide with the main fluid inside the ejector to accelerate, a small amount of the slave fluid will flow in the opposite direction, thereby affecting the flow rate of the slave fluid. At this time, a one-way valve needs to be added inside the slave fluid pipeline so that a small amount of the slave fluid flowing in the opposite direction will not affect the main flow rate inside the slave fluid pipeline. However, when the one-way valve is used for a long time, problems are prone to occur inside the one-way valve, and most of the one-way valves are connected to the pipeline through bolts and flanges, and the bolts are prone to locking if they are not rotated for a long time, thereby reducing the working efficiency of the subsequent ejector. Utility Model Content

[0004] The purpose of the utility model is to provide an ejector with a one-way valve structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An ejector with a one-way valve structure comprises an ejector body and a main flow pipe fixedly connected to one side of the outer wall of the ejector body, a side of the outer wall of the ejector body away from the main flow pipe is fixedly connected to a secondary flow pipe, one end of the secondary flow pipe is fixedly connected to a pipeline body, a one-way valve is provided on the top of the pipeline body, a mounting plate is fixedly connected to the outer wall of the one-way valve, a groove is provided inside the mounting plate, a mounting groove is provided on the outer wall of the mounting plate, a fixing rod is fixedly connected inside the groove, a positioning rod is slidably connected to the outer wall of the fixing rod, a displacement plate is fixedly connected to the outer wall of the positioning rod, a pressure plate is fixedly connected to the outer wall of the displacement plate, one end of the positioning rod passes through the mounting groove and the positioning rod is slidably connected to the mounting plate.

[0007] Furthermore, a pipe body is slidably connected inside the installation groove, a positioning groove is opened on the outer wall of the pipe body and one end of the positioning rod is slidably connected to the positioning groove, and the addition of the fixing rod limits the movement trajectory of the positioning rod.

[0008] Furthermore, a rotating rod is provided inside the groove, a rotating plate is fixedly connected to the outer wall of the rotating rod, and an extrusion block is fixedly connected to the outer wall of the rotating plate. The addition of the rotating plate enables the rotating rod to drive the extrusion block to move.

[0009] Furthermore, one end of the rotating rod passes through the outer wall of the mounting plate and the rotating rod is rotatably connected to the mounting plate. A spring is provided between the positioning rod and the groove. The addition of the spring allows the positioning rod to return to an initial position.

[0010] Furthermore, a main chamber cavity is opened inside the ejector body, a secondary chamber cavity is opened on the outer wall of the ejector body, and the main chamber cavity is connected with the secondary chamber cavity. The addition of the pressure plate allows the displacement plate to move inside the groove.

[0011] Furthermore, a throat is fixedly connected to the outer wall of the ejector body, the main chamber cavity is connected to the secondary flow pipe, the main flow pipe is connected to the secondary chamber cavity, and the addition of the positioning groove makes it easy to fix the position of the one-way valve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model discloses an ejector with a one-way valve structure, which can facilitate the replacement of the one-way valve in the device. By arranging a rotating plate on the outer wall of the rotating rod, arranging an extrusion block on the outer wall of the rotating plate, arranging a fixing rod inside the groove, arranging a positioning rod on the outer wall of the fixing rod, arranging a displacement plate on the outer wall of the positioning rod, arranging a pressure plate on the outer wall of the displacement plate, and arranging a spring between the positioning rod and the groove, the positioning rod can return to the initial position. In the utility model, it is necessary to introduce the main fluid into the mainstream pipeline outside the ejector, and then introduce the slave fluid into the slave flow pipeline, so that the subsequent slave fluid can accelerate the main fluid inside the ejector. Because the slave fluid will contact and collide with the main fluid inside the ejector to accelerate, a small amount of the slave fluid will flow in the opposite direction, thereby affecting the flow rate of the slave fluid. At this time, it is necessary to add a one-way valve inside the slave fluid pipeline, so that the reverse flow of a small amount of the slave fluid will not affect the main flow rate inside the slave fluid pipeline. However, when the one-way valve is used for a long time, problems are prone to occur inside the one-way valve. The one-way valve outside the device is easy to replace, thereby ensuring that the working efficiency of the subsequent ejector will not be reduced.

[0014] 2. The utility model discloses an ejector with a one-way valve structure, which can prevent the secondary fluid inside the ejector from flowing back. By arranging a main flow pipe on the outer wall of the ejector body, arranging a secondary flow pipe on one side of the main flow pipe, arranging a main chamber inside the ejector body, and arranging a secondary chamber on one side of the main chamber, the secondary fluid inside the ejector can be prevented from flowing back. In the utility model, the secondary fluid can accelerate the flow velocity of the main fluid inside the main chamber, so that the flow velocity of the subsequent main fluid is increased when it is ejected from the ejector. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a top sectional view of the installation plate of the utility model;

[0018] Figure 3 This is a main cross-sectional view of the ejector body of the utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the extrusion block of the utility model.

[0020] In the figure: 1. ejector body; 2. main flow pipe; 3. secondary flow pipe; 4. pipeline body; 5. one-way valve; 6. mounting plate; 7. groove; 8. mounting slot; 9. fixing rod; 10. positioning rod; 11. displacement plate; 12. pressure plate; 13. positioning slot; 14. rotating rod; 15. rotating plate; 16. extrusion block; 17. spring; 18. main chamber cavity; 19. secondary chamber cavity; 20. throat. 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] See also Figure 1 , Figure 2 and Figure 4 The utility model provides an ejector with a one-way valve structure, and the technical solution is as follows:

[0023] An ejector with a one-way valve structure comprises an ejector body 1 and a main flow pipe 2 fixedly connected to one side of the outer wall of the ejector body 1, a side of the outer wall of the ejector body 1 away from the main flow pipe 2 is fixedly connected to a secondary flow pipe 3, one end of the secondary flow pipe 3 is fixedly connected to a pipeline body 4, a one-way valve 5 is provided on the top of the pipeline body 4, a mounting plate 6 is fixedly connected to the outer wall of the one-way valve 5, a groove 7 is provided inside the mounting plate 6, a mounting groove 8 is provided on the outer wall of the mounting plate 6, a fixing rod 9 is fixedly connected inside the groove 7, a positioning rod 10 is slidably connected to the outer wall of the fixing rod 9, a displacement plate 11 is fixedly connected to the outer wall of the positioning rod 10, a pressure plate 12 is fixedly connected to the outer wall of the displacement plate 11, one end of the positioning rod 10 passes through the inside of the mounting groove 8 and the positioning rod 10 is slidably connected to the mounting plate 6.

[0024] In a preferred embodiment, the pipe body 4 is slidably connected inside the installation groove 8, a positioning groove 13 is opened on the outer wall of the pipe body 4, and one end of the positioning rod 10 is slidably connected to the positioning groove 13. When the positioning rod 10 moves, the positioning rod 10 can move on the outer wall of the fixing rod 9, and the positioning rod 10 can squeeze the spring 17 at the same time.

[0025] In a preferred embodiment, a rotating rod 14 is provided inside the groove 7, a rotating plate 15 is fixedly connected to the outer wall of the rotating rod 14, and an extrusion block 16 is fixedly connected to the outer wall of the rotating plate 15. When the rotating rod 14 moves, the rotating rod 14 can drive the rotating plate 15 to move, so that the rotating plate 15 can move inside the groove 7.

[0026] In a preferred embodiment, one end of the rotating rod 14 passes through the outer wall of the mounting disk 6 and the rotating rod 14 is rotatably connected to the mounting disk 6. A spring 17 is provided between the positioning rod 10 and the groove 7. When the pressure plate 12 moves, the pressure plate 12 can drive the displacement plate 11 to move, so that the displacement plate 11 can drive the positioning rod 10 to move.

[0027] The working principle of the utility model is as follows: when the device is used and the one-way valve 5 needs to be replaced, the rotating rod 14 is rotated to rotate in the groove 7. The rotating rod 14 also drives the rotating plate 15 to move, so that the rotating plate 15 moves in a circular motion in the groove 7. The rotating plate 15 also drives the extrusion block 16 to move, so that the extrusion block 16 moves in a circular motion in the groove 7. One side of the outer wall of the extrusion block 16 and one side of the outer wall of the pressure plate 12 are uniformly arc-shaped. When one side of the outer wall of the extrusion block 16 contacts one side of the outer wall of the pressure plate 12, the extrusion block 16 can squeeze the pressure plate 12, so that the pressure plate 12 can slide in the groove 7. The pressure plate 12 also drives the displacement plate 11 to move, so that the displacement plate 11 slides in the groove 7. The displacement plate 11 can drive the positioning rod 10 to move, so that the positioning rod 10 slides in the groove 7. At the same time, the positioning rod 10 slides on the outer wall of the fixing rod 9, and the positioning rod 10 squeezes the spring 17 at the same time. At the same time, one end of the positioning rod 10 slides inside the mounting groove 8, and one end of the positioning rod 10 is separated from the positioning groove 13. When one end of the positioning rod 10 is completely separated from the positioning groove 13, the one-way valve 5 is pulled at this time, so that the one-way valve 5 can drive the mounting plate 6 to move, so that the pipeline body 4 is separated from the inside of the mounting groove 8. At this time, the new one-way valve 5 drives the mounting plate 6 to move, so that the mounting groove 8 on the outer wall of the mounting plate 6 can be connected with one end of the pipeline body 4, so that the positioning groove 13 can reach one end of the positioning rod 10. At this time, the rotating rod 14 is reversed, so that the positioning rod 10 can lose the extrusion force of the extrusion block 16, and the elastic force of the spring 17 can drive the positioning rod 10 to move, so that one end of the positioning rod 10 enters the inside of the positioning groove 13, so that the subsequent one-way valve 5 is convenient to disassemble and replace.

[0028] See also Figure 1 and Figure 3 The utility model provides a technical solution: a main chamber cavity 18 is opened inside the ejector body 1, and a secondary chamber cavity 19 is opened on the outer wall of the ejector body 1, and the main chamber cavity 18 is connected with the secondary chamber cavity 19. When the extrusion block 16 moves, the extrusion block 16 will move inside the groove 7, and at the same time, the extrusion block 16 can drive the pressure plate 12 to move.

[0029] In a preferred embodiment, a throat 20 is fixedly connected to the outer wall of the ejector body 1, the main chamber cavity 18 is connected to the secondary flow tube 3, and the main flow tube 2 is connected to the secondary chamber cavity 19. When the positioning rod 10 moves, the positioning rod 10 can move inside the mounting groove 8, so that one end of the positioning rod 10 can be separated from the positioning groove 13.

[0030] The working principle of the utility model is as follows: when the device is used, the main fluid enters the interior of the slave chamber 19 through the main pipeline, and the main fluid enters the interior of the main chamber 18 from the interior of the slave chamber 19. At this time, the slave fluid can pass through the interior of the pipeline body 4 through the connecting plate and the one-way valve 5, so that the slave fluid reaches the interior of the slave pipeline from the pipeline body 4, and the slave fluid can directly enter the interior of the main chamber 18 from the interior of the slave pipeline, so that the slave fluid can accelerate the flow rate of the main fluid inside the main chamber 18, causing the subsequent main fluid to increase in flow rate when it is ejected from the ejector.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An ejector with a one-way valve structure, comprising an ejector body (1) and a main flow pipe (2) fixedly connected to one side of the outer wall of the ejector body (1), characterized in that: A secondary flow tube (3) is fixedly connected to the outer wall of the ejector body (1) at a side away from the main flow tube (2); one end of the secondary flow tube (3) is fixedly connected to the pipeline body (4); a one-way valve (5) is provided at the top of the pipeline body (4); a mounting plate (6) is fixedly connected to the outer wall of the one-way valve (5); a groove (7) is provided inside the mounting plate (6); a mounting groove (8) is provided on the outer wall of the mounting plate (6); a fixing rod (9) is fixedly connected inside the groove (7); a positioning rod (10) is slidably connected to the outer wall of the fixing rod (9); a displacement plate (11) is fixedly connected to the outer wall of the positioning rod (10); a pressure plate (12) is fixedly connected to the outer wall of the displacement plate (11); one end of the positioning rod (10) passes through the interior of the mounting groove (8) and the positioning rod (10) is slidably connected to the mounting plate (6).

2. The ejector with a one-way valve structure according to claim 1, characterized in that: The installation groove (8) is slidably connected to a pipeline body (4), an outer wall of the pipeline body (4) is provided with a positioning groove (13), and one end of a positioning rod (10) is slidably connected to the positioning groove (13).

3. The ejector with a one-way valve structure according to claim 1, characterized in that: A rotating rod (14) is provided inside the groove (7), a rotating plate (15) is fixedly connected to the outer wall of the rotating rod (14), and an extrusion block (16) is fixedly connected to the outer wall of the rotating plate (15).

4. The ejector with a one-way valve structure according to claim 3, characterized in that: One end of the rotating rod (14) passes through the outer wall of the mounting plate (6) and the rotating rod (14) is rotatably connected to the mounting plate (6). A spring (17) is provided between the positioning rod (10) and the groove (7).

5. The ejector with a one-way valve structure according to claim 1, characterized in that: A main chamber cavity (18) is provided inside the ejector body (1), and a secondary chamber cavity (19) is provided on the outer wall of the ejector body (1), and the main chamber cavity (18) is communicated with the secondary chamber cavity (19).

6. The ejector with a one-way valve structure according to claim 5, characterized in that: A throat (20) is fixedly connected to the outer wall of the ejector body (1); the main chamber cavity (18) is in communication with the secondary flow tube (3); and the main flow tube (2) is in communication with the secondary chamber cavity (19).

Images