Divergent vortex tube nozzle structure

Abstract

The utility model discloses a divergent vortex tube nozzle structure, which comprises an outer tube, a fixed tube, a sleeve, a vortex tube and a limiting block, and is characterized in that an inner tube is arranged in the outer tube, a divergent nozzle is arranged between the outer tube and the inner tube, the fixed tube is arranged at the tail end of the outer tube, a connecting tube extends out of the tail end of the fixed tube, and a fixed frame is arranged on the outer wall of the fixed tube; a limiting block is arranged in the fixing frame, a spring is arranged at the bottom of the limiting block, an arc-shaped face is arranged at the tail end of the limiting block, an extension plate is installed at the front end of the vortex tube, and a limiting groove is formed in the top of the extension plate. And the spring rebounds to push the limiting block to penetrate through the limiting groove, the fixing pipe and the vortex pipe are limited, the nozzle and the vortex pipe can be rapidly connected, and mounting and dismounting are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of vortex tube nozzles, in particular to a gradually expanding vortex tube nozzle structure. Background Art

[0002] Vortex tube refrigeration is a method of using the vortex tube to generate a vortex in a high-speed airflow to separate cold and hot airflows, and to obtain a refrigeration method using the cold airflow. Ranque was the first person to study vortex tubes. In his early research, he believed that the adiabatic expansion process of the inner rotating gas flow and the adiabatic compression process of the outer rotating airflow were the fundamental reasons for the energy separation effect of the vortex tube. Hilsch believes that the reasons for the energy separation of the vortex tube include the viscous friction effect between the outer rotating airflow layers in addition to the reasons described by Ranque. When the vortex tube is in use, a nozzle needs to be installed at the air outlet of the vortex tube, but the existing fixing method between the vortex tube nozzle and the vortex tube is cumbersome, and it is inconvenient to disassemble and install. For this reason, a solution is needed. Utility Model Content

[0003] The purpose of this section is to summarize the preferred embodiments of the utility model. Some simplifications or omissions may be made in this section and the specification abstract and utility model title of this application to avoid blurring the purpose of this section, specification abstract and utility model title, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] In view of the above problems and / or the problems existing in the existing vortex tube nozzle structure, the present utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a gradually expanding vortex tube nozzle structure, by arranging an inner tube inside an outer tube, arranging a gradually expanding nozzle between the outer tube and the inner tube, a fixed tube is provided at the tail end of the outer tube, a connecting tube extends from the tail end of the fixed tube, a fixed frame is provided on the outer wall of the fixed tube, a limit block is provided inside the fixed frame, a spring is provided at the bottom of the limit block, the tail end of the limit block has an arc-shaped surface, an extension plate is installed at the front end of the vortex tube, and a limit groove is provided on the top of the extension plate, by extending the connecting tube into the interior of the vortex tube, the extension plate squeezes the limit block downward along the arc-shaped surface and squeezes the spring until the fixed tube is connected to the vortex tube, the spring rebounds and pushes the limit block to slide in the limit groove, thereby limiting the fixed tube and the vortex tube, and the nozzle and the vortex tube can be conveniently and quickly connected, installed and disassembled.

[0006] In order to solve the above technical problems, according to the innovative points of the present invention, the present invention provides the following technical solutions:

[0007] A gradually expanding vortex tube nozzle structure, comprising:

[0008] An outer tube, wherein the inner tube is provided inside the outer tube, and a gradually expanding nozzle is provided between the inner tube and the outer tube;

[0009] A fixed tube is installed at the tail of the outer tube, a connecting tube is installed at the tail of the fixed tube, a fixed frame is installed on the outer wall of the fixed tube, and a guide groove is opened on the side wall of the fixed frame;

[0010] a sleeve, rotatably connected between the outer tube and the fixed tube;

[0011] A vortex tube, wherein the connecting tube extends into the interior of the vortex tube, an extension plate is installed on the outer wall of the vortex tube, and a limiting groove is provided on the top of the extension plate;

[0012] A limit block is located inside the fixed frame, a spring is installed at the bottom of the limit block, the bottom end of the spring abuts against the bottom of the fixed frame, a pressing plate is installed on the side wall of the limit block, the pressing plate extends out of the guide groove, and the top of the limit block has an arc surface facing the vortex tube.

[0013] As a preferred solution of a gradually expanding vortex tube nozzle structure described in the utility model, a positioning plate is provided on the inner wall of the vortex tube, a positioning groove is provided on the outer wall of the connecting tube at a position corresponding to the positioning plate, and the positioning plate extends into the positioning groove.

[0014] As a preferred solution of the gradually expanding vortex tube nozzle structure described in the utility model, a plurality of first air holes are opened on the side wall of the inner tube, and a plurality of second air holes are opened on the side wall of the fixed tube at positions corresponding to the first air holes.

[0015] As a preferred solution of a gradually expanding vortex tube nozzle structure described in the utility model, a sealing baffle is installed inside the sleeve, the tail end of the inner tube abuts against the front side wall of the sealing baffle, the front end of the fixed tube abuts against the rear side wall of the sealing baffle, and a plurality of third air holes are opened at positions on the side wall of the sealing baffle corresponding to the first air holes.

[0016] As a preferred solution of the gradually expanding vortex tube nozzle structure described in the utility model, anti-slip protrusions are installed on the outer wall of the sleeve.

[0017] Compared with the prior art: an inner tube is arranged inside the outer tube, a gradually diverging nozzle is arranged between the outer tube and the inner tube, a fixed tube is provided at the tail end of the outer tube, a connecting tube extends out from the tail end of the fixed tube, a fixed frame is provided on the outer wall of the fixed tube, a limit block is provided inside the fixed frame, a spring is provided at the bottom of the limit block, the tail end of the limit block has an arc-shaped surface, an extension plate is installed at the front end of the vortex tube, and a limit groove is provided on the top of the extension plate. By extending the connecting tube into the interior of the vortex tube, the extension plate squeezes the limit block downward along the arc surface and squeezes the spring until the fixed tube is connected to the vortex tube, and the spring rebounds to push the limit block through the limit groove, thereby limiting the fixed tube and the vortex tube, and the nozzle and the vortex tube can be conveniently and quickly connected, installed and disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and specific implementations. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 This is an overall structural diagram of a gradually expanding vortex tube nozzle structure of the utility model;

[0020] Figure 2 This is a diagram showing the internal structure of a fixed tube of a gradually expanding vortex tube nozzle structure of the utility model;

[0021] Figure 3 This is a cross-sectional view of the outer tube of a gradually expanding vortex tube nozzle structure of the utility model;

[0022] Figure 4 This is a cross-sectional view of a rotating drum of a gradually expanding vortex tube nozzle structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the connection between a fixed tube and a vortex tube of a gradually expanding vortex tube nozzle structure of the utility model. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The utility model provides a gradually expanding vortex tube nozzle structure, by arranging an inner tube inside an outer tube, arranging a gradually expanding nozzle between the outer tube and the inner tube, a fixed tube is provided at the tail end of the outer tube, a connecting tube extends out from the tail end of the fixed tube, a fixed frame is provided on the outer wall of the fixed tube, a limiting block is provided inside the fixed frame, a spring is provided at the bottom of the limiting block, a curved surface is provided at the tail end of the limiting block, an extension plate is installed at the front end of the vortex tube, a limiting groove is provided at the top of the extension plate, by extending the connecting tube into the interior of the vortex tube, the extension plate presses the limiting block downward along the curved surface and presses the spring until the fixed tube is connected with the vortex tube, the spring rebounds and pushes the limiting block to pass through the limiting groove, the fixed tube and the vortex tube are limited, and the nozzle and the vortex tube can be conveniently and quickly connected, installed and disassembled.

[0028] Figure 1-5 The following is a schematic diagram of a gradually expanding vortex tube nozzle structure implementation method of the utility model. Figure 1-Figure 5 A gradually expanding vortex tube nozzle structure of the present embodiment includes an outer tube 100 , a fixed tube 200 , a sleeve 300 , a vortex tube 400 and a limit block 500 .

[0029] The outer tube 100 has an inner tube 110 inside, a gradually diverging nozzle 120 between the inner tube 110 and the outer tube 100, a fixed tube 200 is installed at the rear of the outer tube 100, a connecting tube 210 is installed at the rear end of the fixed tube 200, a fixed frame 220 is installed on the outer wall of the fixed tube 200, a guide groove 230 is opened on the side wall of the fixed frame 220, a plurality of first air holes 130 are opened on the side wall of the inner tube 110, a plurality of second air holes 250 are opened on the side wall of the fixed tube 200 at positions corresponding to the first air holes 130, a sleeve 300 is rotatably connected between the outer tube 100 and the fixed tube 200, a sealing baffle 310 is installed inside the sleeve 300, the rear end of the inner tube 110 abuts against the front side wall of the sealing baffle 310, and the front end of the fixed tube 200 abuts against the rear side wall of the sealing baffle 310 Abutment, a plurality of third air holes 320 are opened at positions corresponding to the first air hole 130 on the side wall of the sealing baffle 310, and an anti-slip protrusion 330 is installed on the outer wall of the sleeve 300, and the fixed outer tube 100 and the fixed tube 200 are connected by the connecting plate 140. In the initial state, the first air hole 130, the second air hole 250 and the third air hole 320 are connected, and the sealing baffle 310 is driven to rotate by rotating the sleeve 300 to stagger the third air hole 320 with the first air hole 130 and the second air hole 250. The size of the connection between the third air hole 320 and the first air hole 130 and the second air hole 250 can be adjusted to control the flow rate of cold air discharged through the first air hole 130. The anti-slip protrusion 330 is made of rubber material, which can increase the friction between the hand and the sleeve 300.

[0030] The vortex tube 400 is located at the tail end of the fixed tube 200, and the connecting tube 210 extends into the vortex tube 400. An extension plate 410 is installed on the outer wall of the vortex tube 400, and a limiting groove 420 is provided on the top of the extension plate 410. A positioning plate 430 is provided on the inner wall of the vortex tube 400. A positioning groove 240 is provided at the corresponding position of the outer wall of the connecting tube 210 and the positioning plate 430. The positioning plate 430 is inserted into the positioning groove 240. The limiting block 500 is located inside the fixed frame 220. A spring 510 is installed at the bottom of the limiting block 500. The bottom end of the spring 510 abuts against the bottom of the fixed frame 220. A pressing plate 520 is installed on the side wall of the limiting block 500. The pressing plate 520 extends out of the guide groove 230. The top of the limiting block 500 has an arc surface 530 facing the vortex tube 400. The outer diameter of the connecting tube 210 is consistent with the inner diameter of the vortex tube 400. When it is necessary to connect the fixed tube 200 and the vortex tube 400 , push the fixed tube 200 towards the vortex tube 400, the connecting tube 210 extends into the interior of the vortex tube 400, the positioning plate 430 slides into the positioning groove 240, the limiting groove 420 squeezes the limiting block 500 along the arc surface 530 to move downward and squeeze the spring 510 until the tail end of the fixed tube 200 abuts against the front end of the vortex tube 400. At this time, the limiting block 500 is located directly below the limiting groove 420, and the spring 510 rebounds and pushes the limiting block 500 to move upward and penetrate the limiting groove 420. The straight edge of the limiting block 500 abuts against the straight edge of the limiting groove 420, and the fixed tube 200 is limited and fixed at the front end of the vortex tube 400. When the fixed tube 200 needs to be removed, the pressing plate 520 is pressed to drive the limiting block 500 to move downward into the fixed frame 220, so that the fixed tube 200 is separated from the vortex tube 400, and the connecting tube 210 can be pulled out from the inside of the vortex tube 400.

[0031] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A gradually expanding vortex tube nozzle structure, characterized in that: include: An outer tube (100), wherein an inner tube (110) is provided inside the outer tube (100), and a gradually diverging nozzle (120) is provided between the inner tube (110) and the outer tube (100); A fixed tube (200) is installed at the rear end of the outer tube (100); a connecting tube (210) is installed at the rear end of the fixed tube (200); a fixed frame (220) is installed on the outer wall of the fixed tube (200); and a guide groove (230) is provided on the side wall of the fixed frame (220); A sleeve (300) is rotatably connected between the outer tube (100) and the fixed tube (200); A vortex tube (400), wherein the connecting tube (210) extends into the interior of the vortex tube (400), an extension plate (410) is installed on the outer wall of the vortex tube (400), and a limiting groove (420) is provided on the top of the extension plate (410); A limit block (500) is located inside the fixed frame (220); a spring (510) is installed at the bottom of the limit block (500); the bottom end of the spring (510) abuts against the bottom of the fixed frame (220); a pressing plate (520) is installed on the side wall of the limit block (500); the pressing plate (520) extends out of the guide groove (230); and the top of the limit block (500) faces the vortex tube (400) and has an arc surface (530).

2. A gradually expanding vortex tube nozzle structure according to claim 1, characterized in that: The inner wall of the vortex tube (400) is provided with a positioning plate (430), and the outer wall of the connecting tube (210) is provided with a positioning groove (240) at a position corresponding to the positioning plate (430), and the positioning groove (240) extends into the interior of the positioning plate (430).

3. A gradually expanding vortex tube nozzle structure according to claim 2, characterized in that: The side wall of the inner tube (110) is provided with a plurality of first air holes (130), and the side wall of the fixed tube (200) is provided with a plurality of second air holes (250) at positions corresponding to the first air holes (130).

4. A gradually diverging vortex tube nozzle structure according to claim 3, characterized in that: A sealing baffle (310) is installed inside the sleeve (300), the rear end of the inner tube (110) abuts against the front side wall of the sealing baffle (310), the front end of the fixed tube (200) abuts against the rear side wall of the sealing baffle (310), and a plurality of third air holes (320) are provided at positions on the side wall of the sealing baffle (310) corresponding to the first air hole (130).

5. A gradually diverging vortex tube nozzle structure according to claim 4, characterized in that: The outer wall of the sleeve (300) is provided with an anti-slip protrusion (330).

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