A computer mainframe box convenient for heat dissipation

Abstract

The application discloses a computer mainframe box convenient for heat dissipation and relates to the technical field of computer heat dissipation. The mainframe box comprises a box body, a blowing layer fixed at the top of the inner cavity of the box body, a back-shaped heat dissipation pipe fixed at the bottom of the blowing layer, a heat dissipation mechanism arranged in the back-shaped heat dissipation pipe, and a purification pipe embedded at the bottom of the back-shaped heat dissipation pipe, and a purification mechanism movably connected in the purification pipe. The back-shaped heat dissipation pipe cooperates with the air inlet arc pipe of the branch to introduce cold air by utilizing negative pressure, the heat accumulated at the top of the mainframe box is led out when the mainframe box is in circulation, low-temperature air is filled, the continuous gasification and liquefaction of the phase-change refrigerant in the lightweight heat dissipation ball are utilized during the period, efficient heat transportation is realized, the electrostatic adsorption of dust by the lightweight heat dissipation ball is utilized, the air source is ensured to be clean, the peeling of the adsorbed dust is realized based on different circulation strengths by utilizing the purification mechanism, and therefore the heat dissipation performance is further improved compared with traditional water cooling and air cooling.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of computer heat dissipation equipment, in particular to a computer mainframe box facilitating heat dissipation. BACKGROUND

[0002] With the continuous upgrading of the performance of the CPU, graphics card, mainboard and other main core components in the computer, the demand for computer mainframe box heat dissipation is increasing. At present, since most computers are air-cooled structures, most people can only open the side panel of the mainframe box for heat dissipation when using the computer in high temperature seasons, which poses a threat to the safe use of hardware components in the mainframe box.

[0003] To solve this problem, water cooling mechanism is added for heat dissipation, which not only has the disadvantages of large size, complexity and high cost, but also has a large number of leakage hazards endangering the use safety. Adding more cooling fans or directly removing the side panel also has a relatively limited effect on the heat dissipation of the mainframe box. On the contrary, due to the increased contact opportunities between the internal components of the mainframe box and the air, a large amount of external dust will be introduced after long-term use. Therefore, there is an urgent need for an optimized heat dissipation processing mainframe box between water cooling and air cooling. SUMMARY

[0004] The present application aims to solve the problem that the general computer mainframe box has poor overall heat dissipation effect by using water cooling or air cooling during operation. The present application provides a computer mainframe box facilitating heat dissipation.

[0005] The present application adopts the following technical solutions to achieve the above-mentioned purpose:

[0006] A computer mainframe box facilitating heat dissipation, comprising a box body, a blowing layer fixedly arranged at the top of the inner cavity of the box body, a back-shaped heat dissipation pipe fixedly arranged at the bottom of the blowing layer, a heat dissipation mechanism arranged in the back-shaped heat dissipation pipe, a purification pipe embedded at the bottom of the back-shaped heat dissipation pipe, and a purification mechanism movably connected in the purification pipe.

[0007] Further, a heat dissipation fan is arranged in the blowing layer, and an air inlet is formed in the right wall of the blowing layer.

[0008] Further, the heat dissipation mechanism comprises an air inlet arc pipe fixedly arranged on the back-shaped heat dissipation pipe, a plurality of light heat dissipation balls arranged in the back-shaped heat dissipation pipe, a heat absorbing leather sleeve fixedly arranged at both ends of the light heat dissipation ball, a strip-shaped groove formed on the surface of the heat absorbing leather sleeve, a phase change refrigerant groove formed at both ends of the light heat dissipation ball, phase change refrigerant filled in the phase change refrigerant groove, a silk surface light rod fixedly connected with the heat absorbing leather sleeve and slidably inserted into the phase change refrigerant groove, and a glass strip movably abutting against the silk surface light rod and embedded on the surface of the light heat dissipation ball.

[0009] Further, the return-shaped heat dissipation pipe is penetrated through the bottom end of the air blowing layer, the bottom of the return-shaped heat dissipation pipe extends to the lower wall of the box body, along the penetration direction of the return-shaped heat dissipation pipe and the air blowing layer, the top of the return-shaped heat dissipation pipe comprises a downward inclined portion, and a plurality of drainage holes are formed in the surface of the inclined portion.

[0010] Further, the air inlet arc pipe is externally connected to the air blowing layer and is provided with a plurality of air inlet holes in the surface, and the connecting port of the return-shaped heat dissipation pipe on the lower side of the air inlet arc pipe comprises a protruding portion for reducing the diameter of the return-shaped heat dissipation pipe.

[0011] Further, the glass strips are relatively staggered with the strip-shaped grooves, and the light heat dissipation balls are provided with grooves corresponding to the glass strips in the surface.

[0012] Further, the purification mechanism comprises a filter block movably connected to the bottom of the purification pipe, heat dissipation silica gel embedded in the side wall of the purification pipe, and a vortex ring movably installed on the inner wall of the purification pipe, the right side of the vortex ring comprises a filter layer penetrated through the filter block, a valve plate is rotatably installed on the right side of the inner cavity of the purification pipe, an elastic push plate is slidably inserted into the bottom of the inner cavity of the purification pipe, and a connecting rod is movably connected between the elastic push plate and the valve plate.

[0013] Further, the middle part of the inner cavity of the purification pipe comprises a valve port corresponding to the valve plate, and the left end of the valve port is expanded along the direction of the inner wall of the purification pipe to form a smooth conical surface.

[0014] Further, the left end of the vortex ring is uniformly provided with arc-shaped vortex grooves for resisting airflow, and the periphery of the right end of the vortex ring comprises a ring-shaped groove for movably connecting with the elastic push plate.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. When the air blowing layer blows air into the return-shaped heat dissipation pipe, the plurality of drainage holes in the top of the return-shaped heat dissipation pipe and the air inlet holes in the side wall of the air blowing layer are used for flow following, the air inlet arc pipe connected to the outside is used to introduce cold air by negative pressure, the heat accumulated at the top of the box body can be discharged, and the low-temperature air is filled, during which the light heat dissipation balls following the flow are used for continuous vaporization and liquefaction of the phase change refrigerant in the light heat dissipation balls, when the light heat dissipation balls move to the bottom of the return-shaped heat dissipation pipe, efficient heat transfer is realized, at the same time, the mechanism of electrostatic adsorption of dust based on the light heat dissipation balls also ensures the cleanliness of the air source, this design not only avoids the complexity and leakage risk of the traditional water cooling system, but also optimizes the traditional air cooling system, and further improves the heat dissipation efficiency.

[0017] 2. In the present invention, the intensity of the air flow blown out by the blast layer in the pre-startup stage is relatively low, the valve plate seals the valve port, and at the same time the filter layer and the filter block are connected, and the air flow guided out by the circular heat dissipation pipe is directly guided out by the filter block. Since the heat dissipation silica gel is externally connected to the heat source of the chassis body, the initial heat dissipation strength inside the chassis is relatively small, and part of the heat is introduced into the vortex ring. Since the air flow in the circular heat dissipation pipe continues to circulate, most of the lightweight heat dissipation balls inside it are accumulated inside the vortex ring with the air flow, and absorb heat and deform. As the low-intensity air flow continues to act on the arc-shaped vortex groove, the vortex ring rotates at a low speed, and the dust adsorbed and stored in the lightweight heat dissipation balls changes with the position of each lightweight heat dissipation ball, and is fully released under the action of the subsequent air flow, and is intercepted and absorbed by the filter block, thereby ensuring the stable operation of the heat dissipation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the main chassis of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the main chassis of the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the main box purification pipe of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the lightweight heat dissipation ball of the main chassis of the present invention;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the lightweight heat dissipation ball of the main chassis of the present invention.

[0023] Figure numerals: 1. Box body; 2. Blowing layer; 3. Circular heat dissipation pipe; 4. Heat dissipation mechanism; 41. Air inlet arc tube; 42. Lightweight heat dissipation ball; 43. Heat-absorbing leather cover; 44. Strip groove; 45. Phase change refrigerant groove; 46. Silk-surface light rod; 47. Glass strip; 5. Purification pipe; 6. Purification mechanism; 61. Filter block; 62. Heat dissipation silica gel; 63. Eddy current ring; 64. Filter layer; 65. Valve plate; 66. Elastic push plate; 67. Connecting rod. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] like Figure 1-5As shown, a computer mainframe case that is easy to dissipate heat includes a case body 1, an air blast layer 2 fixed on the top of the inner cavity of the case body 1, a circular heat dissipation pipe 3 fixed on the bottom of the air blast layer 2, a heat dissipation mechanism 4 is provided in the circular heat dissipation pipe 3, and the heat dissipation mechanism 4 includes an air inlet arc tube 41 fixed on the circular heat dissipation pipe 3, a plurality of lightweight heat dissipation balls 42 arranged inside the circular heat dissipation pipe 3, a heat absorption leather cover 43 fixed on both ends of the lightweight heat dissipation ball 42, and a strip groove 44 opened on the surface of the heat absorption leather cover 43. Phase change refrigerant grooves 45 are opened at both ends of the lightweight heat dissipation ball 42, and the phase change refrigerant grooves 45 are filled with phase change refrigerant. The phase change refrigerant grooves 45 are slidably connected with the heat absorption leather cover 43. A silk-surface light rod 46 is connected, and a glass strip 47 is embedded on the surface of the lightweight heat dissipation ball 42, which is movably in contact with the silk-surface light rod 46. A purification tube 5 is embedded at the bottom of the circular heat dissipation tube 3, and a purification mechanism 6 is movably connected in the purification tube 5. The purification mechanism 6 includes a filter block 61 movably connected to the bottom of the purification tube 5, a heat dissipation silica gel 62 embedded in the side wall of the purification tube 5, and a vortex ring 63 movably installed on the inner wall of the purification tube 5. The right side of the vortex ring 63 includes a filter layer 64 that passes through the filter block 61. A valve plate 65 is rotatably installed on the right side of the inner cavity of the purification tube 5, and an elastic push plate 66 is slidably inserted at the bottom of the inner cavity of the purification tube 5. A connecting rod 67 is movably connected between the elastic push plate 66 and the valve plate 65.

[0026] More specifically, the intensity of the airflow blown out by the blast layer 2 is regulated by the power of the cooling fan. When the operating load of the chassis is greater, the airflow blown out by the blast layer 2 is stronger, and the blown airflow directly enters the circular heat dissipation pipe 3. At the same time, the airflow pushes the valve plate 65 to open the valve port, so that the elastic push plate 66 is compressed, and the filter block 61 and the filter layer 64 are separated. The multiple drainage holes on the top of the circular heat dissipation pipe 3 and the air inlet on the side wall of the blast layer 2 are used to guide the flow, so that the air in the circular heat dissipation pipe 3 is generally counterclockwise. The air inlet arc tube 41 is a branch relative to the return heat dissipation tube 3. The protruding part of the lower port of the air inlet arc tube 41 causes the diameter of the return heat dissipation tube 3 to be reduced. Therefore, the air flow speed at this port of the return heat dissipation tube 3 is faster and the air pressure is lower. At the same time, since the air inlet arc tube 41 is external and there is an air inlet hole on it, the external cold air is quickly introduced into the main channel of the return heat dissipation tube 3 under the action of negative pressure. Since the heat in the chassis is mostly accumulated at the top, the lightweight heat dissipation ball 42 follows the main channel in the return heat dissipation tube 3. The heat is then absorbed by the phase-change refrigerant in the phase-change refrigerant groove 45, and the phase-change refrigerant is then vaporized. When the light heat dissipation ball 42 follows the main airflow and directly passes through the air inlet arc tube 41 and the extended part of the bottom of the loop-shaped heat dissipation tube 3, the phase-change refrigerant is quickly liquefied and restored in combination with the external cold air introduced for cooling, thereby achieving the purpose of efficient heat transport. During this period, as the phase-change refrigerant is continuously vaporized and liquefied, the light silk rod 46 is restrained and rubbed back and forth with the glass strip 47, so that it carries static electricity and absorbs dust introduced by the air inlet arc tube 41 in the gap in contact with the air. This design not only avoids the complexity and leakage risks of the traditional water cooling system, but also optimizes the traditional air cooling system and further improves the heat dissipation efficiency.

[0027] Furthermore, since the airflow intensity blown out by the blast layer 2 is relatively low in the pre-startup stage, the elastic push plate 66 is restored to drive the connecting rod 67, so that the valve plate 65 re-seals the valve port, and at the same time the vortex ring 63 is driven to move left, and the filter layer 64 is connected to the filter block 61. At this time, the airflow guided out by the return heat pipe 3 is directly guided out by the filter block 61. Since the heat dissipation silica gel 62 is externally connected to the heat source of the chassis body, the initial heat dissipation intensity inside the chassis 1 is relatively small, and part of the heat is introduced into the vortex ring 63 for dissipation. Due to the unilateral airflow in the return heat pipe 3, the heat dissipation With continuous circulation, the lightweight heat dissipation balls 42 inside are accumulated inside the vortex ring 63 driven by the airflow, and absorb heat and deform. As the low-intensity airflow continues to act on the arc-shaped vortex groove, the vortex ring 63 rotates at a low speed. The dust adsorbed and stored in the lightweight heat dissipation balls 42 changes with the continuous position of each lightweight heat dissipation ball 42 and the expansion of the heat-absorbing leather cover 43, and is then fully released under the action of the subsequent airflow, and is intercepted and absorbed by the filter block 61, thereby achieving purification of the lightweight heat dissipation balls 42 and ensuring the stable operation of the heat dissipation mechanism 4.

[0028] like Figure 2 As shown, in some embodiments, a cooling fan is connected to the blast layer 2, and an air inlet is provided on the right wall of the blast layer 2. The circular heat dissipation pipe 3 is connected to the bottom end of the blast layer 2, and the bottom of the circular heat dissipation pipe 3 extends to the lower wall of the box body 1. Along the direction of the connection between the circular heat dissipation pipe 3 and the blast layer 2, the top of the circular heat dissipation pipe 3 includes a downward inclined portion, and a plurality of drainage holes are provided on the surface of the inclined portion. The multiple drainage holes on the top of the circular heat dissipation pipe 3 and the air inlet on the side wall of the blast layer 2 are used to guide the air. When the blast layer 2 blows air into the circular heat dissipation pipe 3, the air can circulate, so that the air in the circular heat dissipation pipe 3 flows in a counterclockwise direction as a whole to dissipate the hot air inside the box body 1. When the drainage hole is used to discharge cold air into the inside of the box body 1, since the air strength here is weakened, the inclined design of this part avoids the obstruction of the lightweight heat dissipation ball 42 and helps it to quickly follow the air flow based on gravity.

[0029] like Figure 2 As shown, in some embodiments, the air inlet arc tube 41 is externally connected and has multiple air inlet holes on its surface. The connection port between the lower side of the air inlet arc tube 41 and the circular heat dissipation tube 3 includes a protruding portion for reducing the diameter of the circular heat dissipation tube 3. The protruding portion of the lower side port of the air inlet arc tube 41 causes the diameter of the circular heat dissipation tube 3 to be reduced. Therefore, the air flow speed at this port of the circular heat dissipation tube 3 is faster and the air pressure is lower. At the same time, since the air inlet arc tube 41 is externally connected and has air inlet holes on it, the external cold air is quickly introduced into the main channel of the circular heat dissipation tube 3 under the action of negative pressure to assist the lightweight heat dissipation ball 42 in heat dissipation.

[0030] like Figure 4-5As shown, in some embodiments, the glass strips 47 and the strip grooves 44 are relatively staggered, and a groove corresponding to the glass strips 47 is opened on the surface of the lightweight heat dissipation ball 42. The initial heat-absorbing leather cover 43 covers the outside of the groove and seals the glass strip 47. The existence of the groove prevents the heat-absorbing leather cover 43 from directly pressing on the glass strip 47 after it absorbs dust, thereby increasing the adhesion of the dust and making it difficult to clean it later. After the heat-absorbing leather cover 43 expands away from the groove, the strip groove 44 is used to make the glass strip 47 contact with the outside air, which is convenient for absorbing dust.

[0031] like Figure 3 As shown, in some embodiments, the middle part of the inner cavity of the purification tube 5 includes a valve port corresponding to the valve plate 65, and the left end of the valve port expands along the inner wall direction of the purification tube 5 to form a smooth conical surface. Since the direction of the airflow in the purification tube 5 is from one side of the smooth conical surface to the valve port, when the lightweight heat dissipation ball 42 moves with the airflow, the smooth conical surface can prevent the lightweight heat dissipation ball 42 from being blocked when passing through the valve port.

[0032] like Figure 3 As shown, in some embodiments, an arc-shaped vortex groove for obstructing the airflow is evenly opened at the left end of the vortex ring 63, and the outer periphery of the right end of the vortex ring 63 includes an annular groove for movably engaging with the elastic push plate 66. When the vortex ring 63 is impacted by the airflow, the vortex ring 63 automatically rotates based on the arc-shaped vortex groove, which facilitates the subsequent purification assistance of the lightweight heat dissipation ball 42. By utilizing the property of the vortex ring 63 being movably engaged with the elastic push plate 66, the vortex ring 63 is simultaneously shifted and adjusted.

[0033] like Figure 2 and Figure 4-5As shown, in some embodiments, the heat dissipation mechanism 4 includes an air inlet arc tube 41 fixed on the circular heat dissipation tube 3, a plurality of lightweight heat dissipation balls 42 arranged inside the circular heat dissipation tube 3, a heat absorbing leather cover 43 fixed at both ends of the lightweight heat dissipation ball 42, and a strip groove 44 opened on the surface of the heat absorbing leather cover 43. Phase change refrigerant grooves 45 are opened at both ends of the lightweight heat dissipation ball 42, and the phase change refrigerant grooves 45 are filled with phase change refrigerant. A silk light rod 46 fixedly connected to the heat absorbing leather cover 43 is slidably inserted in the phase change refrigerant groove 45. A glass strip 47 movably abutted against the silk light rod 46 is embedded on the surface of the lightweight heat dissipation ball 42. Specifically, when air flow is blown into the circular heat dissipation tube 3 through the blast layer 2, the top of the circular heat dissipation tube 3 is used. The multiple drainage holes on the top and the air inlet on the side wall of the blast layer 2 are circulated, and the cold air is introduced by the negative pressure of the air inlet arc tube 41 of the external branch, so that the heat accumulated on the top of the chassis can be drawn out and the low-temperature air is returned. During this period, the lightweight heat dissipation ball 42 following the circulation is used, and the continuous gasification and liquefaction of the phase change refrigerant inside the lightweight heat dissipation ball 42 can achieve efficient heat transportation when it moves to the bottom of the circular heat dissipation tube 3. At the same time, the lightweight heat dissipation ball 42 is used to absorb dust based on electrostatics to ensure the cleanliness of the air source. This design not only avoids the complexity and leakage risks of the traditional water cooling system, but also optimizes the traditional air cooling system, thereby further improving the heat dissipation efficiency.

[0034] like Figure 2-3 As shown, in some embodiments, the purification mechanism 6 includes a filter block 61 movably connected to the bottom of the purification tube 5, a heat dissipation silica gel 62 embedded in the side wall of the purification tube 5, and a vortex ring 63 movably installed on the inner wall of the purification tube 5. The right side of the vortex ring 63 includes a filter layer 64 that penetrates the filter block 61. A valve plate 65 is rotatably installed on the right side of the inner cavity of the purification tube 5. An elastic push plate 66 is slidably inserted at the bottom of the inner cavity of the purification tube 5. A connecting rod 67 is movably connected between the elastic push plate 66 and the valve plate 65. Specifically, the airflow intensity blown out by the blast layer 2 before starting is low, the valve plate 65 seals the valve port, and at the same time the filter layer 64 penetrates the filter block 61, and the airflow derived from the return heat dissipation tube 3 is It is directly exported by the filter block 61, and since the heat dissipation silica gel 62 is external to the chassis main body heat source, the initial heat dissipation strength inside the chassis 1 is relatively small, and part of the heat is introduced into the vortex ring 63. Since the airflow in the return heat pipe 3 continues to circulate, most of the lightweight heat dissipation balls 42 inside it are accumulated inside the vortex ring 63 with the airflow, and absorb heat and deform. As the low-intensity airflow continues to act on the arc-shaped vortex groove, the vortex ring 63 rotates at a low speed, and the dust adsorbed and stored in the lightweight heat dissipation balls 42 changes with the position of each lightweight heat dissipation ball 42, and is fully released under the action of the subsequent airflow, and is intercepted and absorbed by the filter block 61, thereby ensuring the stable operation of the heat dissipation mechanism 4.

[0035] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A computer mainframe case that is convenient for heat dissipation, comprising a case body (1), and a blast layer (2) fixedly arranged on the top of the inner cavity of the case body (1), characterized in that: A circular heat dissipation pipe (3) is fixedly provided at the bottom of the blast layer (2), a heat dissipation mechanism (4) is provided in the circular heat dissipation pipe (3), a purification pipe (5) is embedded in the bottom of the circular heat dissipation pipe (3), and a purification mechanism (6) is movably connected in the purification pipe (5); A heat dissipation fan is internally connected to the blast layer (2), and an air inlet is provided on the right wall of the blast layer (2); The heat dissipation mechanism (4) includes an air inlet arc tube (41) fixed on the circular heat dissipation tube (3), a plurality of lightweight heat dissipation balls (42) arranged inside the circular heat dissipation tube (3), a heat absorption leather sleeve (43) fixed on both ends of the lightweight heat dissipation balls (42), and a strip groove (44) opened on the surface of the heat absorption leather sleeve (43); both ends of the lightweight heat dissipation balls (42) are provided with a phase change refrigerant groove (45), the phase change refrigerant groove (45) is filled with a phase change refrigerant, a silk surface light rod (46) fixedly connected to the heat absorption leather sleeve (43) is slidably inserted in the phase change refrigerant groove (45), and a glass strip (47) movably abutted against the silk surface light rod (46) is embedded on the surface of the lightweight heat dissipation ball (42); The circular heat dissipation pipe (3) is connected to the bottom end of the blast layer (2), and the bottom of the circular heat dissipation pipe (3) extends to the lower wall of the box body (1). Along the direction of the circular heat dissipation pipe (3) and the blast layer (2), the top of the circular heat dissipation pipe (3) includes a downward inclined portion, and a plurality of drainage holes are opened on the surface of the inclined portion; The air inlet arc tube (41) is externally connected and has a plurality of air inlet holes on its surface. The connection port between the lower side of the air inlet arc tube (41) and the circular heat dissipation tube (3) includes a protruding portion for reducing the diameter of the circular heat dissipation tube (3); The glass strips (47) and the strip-shaped grooves (44) are relatively staggered, and a groove corresponding to the glass strips (47) is provided on the surface of the lightweight heat dissipation ball (42); The purification mechanism (6) includes a filter block (61) movably connected to the bottom of the purification tube (5), a heat dissipation silica gel (62) embedded in the outer wall of the purification tube (5), and a vortex ring (63) movably installed on the inner wall of the purification tube (5). The right side of the vortex ring (63) includes a filter layer (64) that penetrates the filter block (61). A valve plate (65) is rotatably installed on the right side of the inner cavity of the purification tube (5). An elastic push plate (66) is slidably inserted into the bottom of the inner cavity of the purification tube (5). A connecting rod (67) is movably connected between the elastic push plate (66) and the valve plate (65).

2. A computer mainframe case for facilitating heat dissipation according to claim 1, characterized in that: The middle portion of the inner cavity of the purification tube (5) includes a valve port corresponding to the valve plate (65), and the left end of the valve port expands along the inner wall direction of the purification tube (5) to form a smooth conical surface.

3. A computer mainframe case for facilitating heat dissipation according to claim 1, characterized in that: The left end of the vortex ring (63) is evenly provided with arc-shaped vortex grooves for obstructing airflow, and the right end of the vortex ring (63) includes an annular groove for movably engaging with the elastic push plate (66).

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