Ejector

Abstract

The utility model discloses an ejector which is characterized in that a body component (100) comprises a first body (120), a second body (130) and a first connecting pipe (140), the first connecting pipe (140) comprises a low-pressure fluid inlet end (141), the second body (130) comprises a fluid outlet end (121), the low-pressure fluid inlet end (141) is communicated with the fluid outlet end (121), and the first connecting pipe (140) is communicated with the first body (120). The first body (120) is detachably connected with the second body (130), and the first connecting pipe (140) is detachably connected with the first body (120). According to the ejector provided by the utility model, the convenience of installation of a product and a system is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluid control, and in particular relates to an injector. Background Art

[0002] The ejector is widely used as a fluid control device. The ejector generally includes a main unit and an ejection unit, and the ejection unit includes a nozzle. When the ejector is working, two fluids of different pressures mix with each other and exchange energy, forming a medium-pressure fluid that flows out from the outlet.

[0003] Limited by the functional requirements of the ejector, the relative position relationship between the low-pressure fluid inlet and the fluid outlet is relatively complex, which may cause inconvenience in the installation process of the product and the flow system. Therefore, how to optimize the internal structure of the ejector to improve the convenience of product and system installation is an issue that technicians in this field need to pay attention to. Utility Model Content

[0004] The utility model proposes an injector, comprising a nozzle component and a body component, wherein the body component comprises a first body, a second body and a first connecting pipe; the first connecting pipe comprises a low-pressure fluid inlet end, the first body comprises a receiving chamber, the second body comprises a fluid outlet end, the nozzle component comprises a nozzle chamber, the nozzle chamber can be communicated with the receiving chamber, the low-pressure fluid inlet end is communicated with the receiving chamber, and the receiving chamber is communicated with the fluid outlet end; the first body is detachably connected to the second body, and the first connecting pipe is detachably connected to the first body.

[0005] The injector provided by the utility model has a body component with a split structure, and the design that the first body is detachably connected to the first connecting pipe and the first body is detachably connected to the second body improves the convenience of installing the injector and the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 : A schematic diagram of the specific structure of an ejector provided by the utility model;

[0007] Figure 2 : Figure 1 A schematic diagram of the structure of the second body;

[0008] Figure 3 : A schematic diagram of the structure of the first body and the first connecting pipe provided by the utility model;

[0009] Figure 4 : A schematic diagram of another structure of the first body connected to the first connecting pipe provided by the utility model;

[0010] Figure 1-Figure 4 Explanation of symbols:

[0011] 10- ejector;

[0012] 100-body component;

[0013] 111-first chamber, 112-second chamber, 113-receiving chamber;

[0014] 120 / 120A-first body;

[0015] 121-fluid outlet port;

[0016] 123-matching hole portion, 124-first external thread portion;

[0017] 125-internal thread portion;

[0018] 128 / 128A-Mounting hole;

[0019] 129-limiting surface;

[0020] 130 / 130A-second body;

[0021] 131-pipeline;

[0022] 133-matching shaft portion;

[0023] 134-mounting boss;

[0024] 135-first axial limiting portion;

[0025] 136 - second axial limiting portion;

[0026] 140 / 140A-First connection;

[0027] 141-low pressure fluid inlet port;

[0028] 142- second external thread portion;

[0029] 143 / 144-limited steps;

[0030] 145- nut piece;

[0031] 150-connection joint;

[0032] 200-valve body parts;

[0033] 210-valve body;

[0034] 220-hood body;

[0035] 230-Second takeover;

[0036] 250-Inner cavity;

[0037] 260-high pressure fluid inlet port;

[0038] 300- rotor parts;

[0039] 310-rotor, 400-valve needle component;

[0040] 410-valve needle;

[0041] 500-nozzle parts;

[0042] 510-nozzle;

[0043] 540-nozzle chamber;

[0044] 600-Mounting nut;

[0045] 710 / 720 / 730 - Sealing ring. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The directional words such as upper and lower involved in this article are defined by the positions of the parts relative to each other shown in the drawings. They are only for the clarity and convenience of expressing the technical solution. It should be understood that the directional words used in this article should not limit the scope of protection requested by this application; it should also be understood that the structural relationships such as connection, fixation, and abutment described in this article, except for special instructions to reflect its practical new ideas, should include direct and indirect methods.

[0047] Figure 1 This is a schematic diagram of the specific structure of an ejector provided by the utility model. Figure 2 for Figure 1 The structural diagram of the second body in Figure 3 This is a structural schematic diagram of the connection between the first body and the first connecting pipe provided by the utility model.

[0048] like Figure 1 , Figure 2 and Figure 3 The injector 10 mainly includes three parts: a body part 100 , a valve assembly and a nozzle part 500 . The valve assembly includes a valve body part 200 , a rotor part 300 and a valve needle part 400 .

[0049] The nozzle component 500 is fixedly connected to the body component 100 , and the nozzle component 500 is fixedly connected to the valve body component 200 .

[0050] The valve body component 200 includes a valve body 210, a cover body 220, and a second connecting pipe 230. The valve body 210 and the cover body 220 are welded and fixed, and the inner wall of the valve body 210 and the cover body 220 encloses at least part of the inner cavity 250 of the valve body component. The second connecting pipe 230 is welded and fixed to the valve body 210, and the inner hole of the second connecting pipe 230 serves as a high-pressure fluid inlet end 260, and the high-pressure fluid inlet end 260 is connected to the inner cavity 250. The rotor component 300 includes a rotor 310 located in the inner cavity 250.

[0051] The body component 100 includes a first body 120, a second body 130 and a first connecting pipe 140. The first connecting pipe 140 includes a low-pressure fluid inlet port 141, and the second body 130 includes a fluid outlet port 121. The first body 120 includes at least a portion of a receiving chamber 113, the low-pressure fluid inlet port 141 is in communication with the receiving chamber 113, and the receiving chamber 113 is in communication with the fluid outlet port 121. The nozzle component 500 includes a nozzle chamber 540, and the nozzle chamber 540 can be in communication with the receiving chamber 113.

[0052] In the technical solution provided by the present utility model, the first body 120 is detachably connected to the second body 130, and the first pipe 140 is detachably connected to the first body 120. For the convenience of explaining the technical solution, in this specific embodiment, the first body 120 is fixed to the second body 130 by threaded connection, and the first pipe 140 is fixed to the first body 120 by threaded connection. Of course, those skilled in the art can understand that the technical effect of the present invention can also be achieved by replacing the technical solution such as the buckle method.

[0053] The injector of the above technical solution is limited by functional requirements, and the low-pressure fluid inlet end 141 forms a certain angle with the axis of the valve needle component 400, making the relative position relationship between the low-pressure fluid inlet end 141 and the fluid outlet end 121 relatively complicated. When the injector 10 is installed with the flow path system, the first pipe 140 and the second body 130 can be respectively installed and fixed with the interface end of the system, and then the first pipe 140 and the first body 120 are fixedly connected by threads, and the second body 130 and the first body 120 are fixedly connected by threads. The overall installation process has space for adjustable position, which improves the adaptability and convenience of product installation.

[0054] As a further extension of the above technical solution, the first body 120 includes a first chamber 111, and the low-pressure fluid inlet end 141 is connected to the receiving chamber 113 through the first chamber 111; the second body 130 includes a second chamber 112, and the receiving chamber 113 is connected to the fluid outlet end 121 through the second chamber 112. The nozzle component 500 is at least partially located in the receiving chamber 113, and the nozzle component 500 includes a nozzle 510, and the nozzle 510 is fixedly connected to the first body 120.

[0055] As a further extension of the above technical solution, the second body 130 includes a tube portion 131 and a connecting joint 150 , the tube portion 131 includes a second chamber 112 , the connecting joint 150 includes a fluid outlet end 121 , and the tube portion 131 is fixedly connected to the connecting joint 150 .

[0056] As a further extension of the above technical solution, in this specific embodiment, the area of ​​the first body 120 connected to the second body 130 is generally tubular, including a matching hole portion 123 and a first external thread portion 124 (see Figure 3 ); the area of ​​the second body 130 connected to the first body 120 is roughly tubular and includes a mating shaft portion 133 and a mounting boss 134.

[0057] One side of the mounting boss 134 serves as a first axial limiting portion 135, and the other side of the mounting boss 134 serves as a second axial limiting portion 136 (see FIG. Figure 2 ). When the first body 120 and the second body 130 are assembled, the matching shaft portion 133 is first inserted into the matching hole portion 123 for radial positioning, and the first body 120 is abutted against the first axial limiting portion 135 for axial positioning. The mounting nut 600 is inserted into the tubular connecting portion of the second body 130, the bottom of the inner hole of the mounting nut 600 abuts against the second axial limiting portion 136, and the mounting nut 600 is screwed with the first external thread portion 124, so that the first body 120 and the second body 130 are fixedly connected.

[0058] Of course, as a variation of the above technical solution, a matching shaft portion may be provided on the first body and a matching hole portion may be provided on the second body for installation and matching.

[0059] As a further extension of the above technical solution, a sealing ring 710 is provided between the mating shaft portion 133 and the mating hole portion 123 to ensure the airtight reliability of the internal chamber after installation.

[0060] exist Figure 3 A schematic diagram of an optional structure of the connection between the first body and the first connecting pipe is given in the figure. Specifically, the first connecting pipe 140 is roughly tubular, and includes a limiting step 143 at the outer edge of the lower section. The area of ​​the first body 120 that cooperates with the first connecting pipe 140 includes an internal thread portion 125 and a mounting hole portion 128, and the mounting hole portion 128 includes a limiting surface 129. When the first body 120 and the first connecting pipe 140 are installed, the first connecting pipe 140 is partially inserted into the mounting hole portion 128, so that the outer edge of the limiting step 143 and the inner edge of the mounting hole portion 128 are radially limited and matched, and the limiting step 143 and the limiting surface 129 are abutted and matched. The nut member 145 is screwed into the internal thread portion 125 of the first body 120, so that the nut member 145 abuts against the limiting step 143, so as to realize the installation and fixation of the first body 120 and the first connecting pipe 140.

[0061] As a further extension of the above technical solution, a sealing ring 730 is provided between the first connecting pipe 140 and the mounting hole portion 128 to ensure the airtight reliability of the internal chamber after installation.

[0062] Figure 4 This is a schematic diagram of another structure of the first body connected to the first connecting pipe provided by the present invention.

[0063] like Figure 4 Shown and referenced Figure 1 and Figure 2 The first connecting pipe 140A is tubular, and includes a second external threaded portion 142 at the outer edge of the lower section, and includes a limiting step 144 at the outer edge of the middle section. The first body 120A includes an internal threaded portion 125 and a mounting hole portion 128A. When the first body 120A and the first connecting pipe 140A are installed, the first connecting pipe 140A is inserted into the mounting hole portion 128A, the external threaded portion 125 is screwed into the internal threaded portion 142, and the limiting step 144 is abutted against the first body 120A to achieve a fixed connection.

[0064] As a further extension of the above technical solution, a sealing ring 720 is provided between the first connecting pipe 140A and the mounting hole portion 128A to ensure the airtight reliability of the internal chamber after installation.

[0065] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An ejector, comprising a nozzle component and a body component, characterized in that: The body component includes a first body, a second body and a first connecting pipe; the first connecting pipe includes a low-pressure fluid inlet end, the first body includes a receiving chamber, the second body includes a fluid outlet end, the nozzle component includes a nozzle chamber, the nozzle chamber can be communicated with the receiving chamber, the low-pressure fluid inlet end is communicated with the receiving chamber, and the receiving chamber is communicated with the fluid outlet end; The first body is detachably connected to the second body, and the first connecting pipe is detachably connected to the first body.

2. The injector according to claim 1, characterized in that The first body also includes a first chamber, and the low-pressure fluid inlet end is connected to the receiving chamber through the first chamber; the second body includes a second chamber, and the receiving chamber is connected to the fluid outlet end through the second chamber; the nozzle component includes a nozzle, and the nozzle is at least partially located in the receiving chamber, and the nozzle component is fixedly connected to the first body.

3. The injector according to claim 1, characterized in that The second body includes a tube portion and a connecting joint, the tube portion includes a second chamber, the connecting joint includes the fluid outlet end, and the tube portion is fixedly connected to the connecting joint.

4. The injector according to any one of claims 1 to 3, characterized in that: The first body and the second body are fixed by threaded connection, and the first connecting pipe and the first body are fixed by threaded connection.

5. The injector according to claim 4, characterized in that One of the first body and the second body includes a matching hole portion, and the other of the first body and the second body includes a matching shaft portion, and the matching hole portion is radially limitedly matched with the matching shaft portion.

6. The injector according to claim 5, characterized in that A sealing ring is provided between the mating shaft portion and the mating hole portion.

7. The injector according to claim 4, characterized in that It also includes a mounting nut, the second body includes a first axial limiting portion and a second axial limiting portion, the first body abuts against the first axial limiting portion, the mounting nut abuts against the second axial limiting portion, the first body includes a first external threaded portion, and the mounting nut is screwed and fixed with the first external threaded portion.

8. The injector according to claim 4, characterized in that It also includes a nut component. The first connecting pipe is tubular and includes a limiting step. The first body includes an internal thread portion and a mounting hole portion. The mounting hole portion includes a limiting surface. The first connecting pipe portion is located in the mounting hole portion. The limiting step abuts against the limiting surface. The outer edge of the limiting step radially limits the inner edge of the mounting hole portion. The nut component abuts against the limiting step. The nut component is screwed and fixed to the internal thread portion.

9. The injector according to claim 4, characterized in that The first connecting pipe is tubular and includes a limiting step and a second external threaded portion. The first main body includes an internal threaded portion and a mounting hole portion. The first connecting pipe portion is located in the mounting hole portion. The limiting step abuts against the first main body, and the external threaded portion is screwed and fixed with the internal threaded portion.

10. The injector according to claim 8, characterized in that A sealing ring is arranged between the first connecting pipe and the mounting hole.

11. The injector according to claim 9, characterized in that A sealing ring is arranged between the first connecting pipe and the mounting hole.

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