TWI880231B - Three-stage vacuum generator with vortex airflow and multi-stage suction holes - Google Patents

Abstract

A three-stage vacuum generator with vortex airflow and multi-stage suction holes comprises a main body, a first stage vacuum tube is arranged inside the main body in an integrated design, a vortex nozzle is fixedly connected to the front end of the main body to increase the flow rate of the fluid, and the second stage vacuum tube and the third stage vacuum tube are sequentially connected to the first stage vacuum tube to form a vacuum tube assembly, and a plurality of multi-stage suction holes are arranged at a certain interval on the side edge of the main body, so that the multi-stage suction holes cooperate with the vacuum tube assembly to further increase the amount of fluid suction, and the third stage vacuum tube has a cam and a positioning bump, so that the main body and the vacuum tube assembly can utilize the cam and the positioning bump arranged non-parallel to allow at least one main body to be accommodated in a housing, so as to form a high-efficiency vacuum generator.

Description

Three-stage vacuum generator with vortex airflow and multi-stage suction holes

This invention is about a three-stage vacuum generator with vortex airflow and multi-stage suction holes. The vortex nozzle and multi-stage vacuum tube design inside the main body can effectively increase the fluid suction volume. The vacuum tube can also be connected in sections, which can greatly simplify the subsequent maintenance work steps.

Generally, the multiple gas inlet holes in the vacuum generators currently used are usually designed with two holes on the left and right. Therefore, when the gas is diverted, the size and design of the gas inlet holes may limit the gas flow capacity. The smaller the hole diameter or the narrower the channel, the more likely it is that the bottleneck effect of the gas flow will be produced, which will limit the smooth flow of the gas and cause the gas flow speed to decrease, thus affecting the working efficiency and speed of the vacuum generator. In addition, because the gas flow is restricted, when the gas passes through the internal gas inlet hole, pressure loss may occur, and this kind of pressure loss may also cause the gas to flow slowly. This will cause the outflow pressure of the gas to be lower than the required value, thus affecting the performance of the vacuum system. The aforementioned restrictions on the gas intake hole may also limit the maximum power of the vacuum generator. If the gas cannot pass through the aperture or channel to provide sufficient gas flow, the vacuum generator may not be able to achieve the required vacuum degree or the ability to handle large workpieces. Since the internal gas intake hole is in contact with the environment, there is a certain risk that it may be blocked by dust, pollutants or other foreign objects. These blockages may limit the passage of gas, further reducing the efficiency of the vacuum generator and even causing system failure.

Therefore, the creators have learned from the actual application and research of the above-mentioned structure that it still has shortcomings that need to be improved.

In view of the complicated steps of today's industrial processing, the requirements for precision control are becoming more and more stringent, so the ability to increase the flow rate of fluid and stabilize the output rate is a part that needs to be improved urgently. In order to achieve the above-mentioned purpose, the main purpose of the present invention is to provide a three-stage vacuum generator with vortex airflow and multi-stage suction holes, wherein the first vacuum tube, the second vacuum tube, and the third vacuum tube are sequentially arranged inside the main body; The main features are: a vortex nozzle is fixed at the front end of the body to increase the fluid flow rate. The body also has multiple multi-stage suction holes at a certain interval on the side edge. The first stage vacuum tube and the body are integrated, and the second stage vacuum tube and the third stage vacuum tube are sequentially connected to the first stage vacuum tube to form a vacuum tube assembly, so that the fluid suction volume can be further increased through the multi-stage suction holes.

The third section of the vacuum tube further includes: a pair of protrusions symmetrically arranged on the outer edge of the third vacuum tube, and a pair of positioning protrusions are arranged near the end of the protrusion.

The protrusion and the positioning protrusion are arranged in a non-parallel manner.

It also includes: a housing that can provide at least one of the main bodies to be arranged inside.

It also includes: a positioning groove, which is mainly used to connect and fix the cam.

It also includes: a positioning groove, which is mainly used to connect and fix the positioning protrusion.

It also includes: the multi-stage suction hole is designed with four holes arranged in a symmetrical manner, which can further increase the fluid suction volume by cooperating with the vacuum tube assembly.

It also includes: the size of the vortex nozzle is smaller than the inner wall of the front end of the main body and is generally cylindrical, and the inner wall of one end of the vortex nozzle is limited to the central axis to form a funnel shape.

It also includes: a first vortex, which is arranged at one end of the vortex nozzle; and a second vortex, which is relatively arranged at the other end of the vortex nozzle, and the blades of the first vortex and the second vortex are designed to be clockwise and counterclockwise, which can increase the flow rate of the external fluid when passing through, so as to cooperate with the subsequent operation of the vacuum tube assembly.

(10):Entity

(101):Front end

(102): End

(11): The first section of vacuum tube

(12): The second section of the vacuum tube

(13): The third section of vacuum tube

(131): cam

(132): Positioning bumps

(14): Vacuum tube assembly

(20): Multi-stage suction hole

(30): Vortex nozzle parts

(31): First vortex

(32): Second vortex

(40): Shell

(41): Positioning groove

(42): Positioning groove

[Figure 1] is a three-dimensional diagram of the main body of the present invention combined with the shell.

[Figure 2] is a schematic diagram of the A-A cross section of the present invention based on Figure 1.

[Figure 3] is a partially enlarged schematic diagram of the present invention based on the B-B section of Figure 1.

[Figure 4] is a schematic diagram of the main body and vacuum tube assembly of the present invention.

[Figure 5] is a schematic diagram of the C-C cross section of the present invention based on Figure 4.

[Figure 6] is a schematic diagram of the D-D cross section of the present invention based on Figure 4.

[Figure 7] (A) is a three-dimensional diagram of the vortex nozzle of the present invention.

(B) is a front view of the vortex nozzle of the present invention based on Figure 7(A).

(C) is a three-dimensional diagram of the vortex nozzle of the present invention from another viewing angle.

(D) is a front view of the vortex nozzle of the present invention based on Figure 7(C).

[Figure 8] is an enlarged schematic cross-sectional view of the vortex nozzle of the present invention based on E-E of Figure 7 (B).

Generally, according to the best feasible embodiment of the present invention, and after detailed description with reference to Figures 1 to 8, the present invention is a three-stage vacuum generator with vortex airflow and multi-stage suction holes, which has a body (10), and the body (10) is provided with a front end (101) and a rear end (102), and the interior of the body (10) is provided with: a first-stage vacuum tube (11), a second-stage vacuum tube (12), and a third-stage vacuum tube (13); a vortex nozzle (30) is provided at the front end (101) and connected to the body (10) and fixed thereto. The fluid flow rate is increased, and a plurality of multi-stage suction holes (20) are arranged at a certain interval on the side edge of the main body (10), wherein the first stage vacuum tube (11) and the main body (10) are integrated, and the second stage vacuum tube (12) and the third stage vacuum tube (13) are sequentially connected to the first stage vacuum tube (11) to form a vacuum tube assembly (14), so that the fluid suction amount is further increased through the multi-stage suction holes (20). The multi-stage suction holes (20) can be seen in Figure 6. In this invention, there are 4 holes per layer, 3 layers in total, and 12 holes in total, which can effectively increase the fluid suction amount.

The overall size of the vortex nozzle member (30) is smaller than the inner wall of the front end (101) of the body (10), and its overall appearance is roughly cylindrical, and the inner wall of one end of the vortex nozzle member (30) is limited to a funnel-shaped design toward the central axis; and the vortex nozzle member (30) further includes: a first vortex (31) disposed at one end of the vortex nozzle member (30); and a second vortex (32) is relatively disposed at the other end of the vortex nozzle member (30), and the first vortex (31) and the second vortex (32) are connected to each other. The blades of the vortex (32) are designed to rotate clockwise or counterclockwise, which can be clearly seen in Figures 7(B) and 7(D). Of course, if the first vortex (31) and the second vortex (32) are changed to rotate clockwise, counterclockwise, or counterclockwise, it is also a common variation in this field, so it will not be elaborated. As shown in Figure 8, it can be seen that the first vortex (31) and the second vortex (32) are designed to be connected, which can increase the flow rate of the external fluid when passing through, so as to cooperate with the subsequent operation of the vacuum tube assembly (14).

The third section of the vacuum tube (13) further comprises: a pair of protrusions (131), the pair of protrusions (131) are symmetrically arranged on the outer edge of the third section of the vacuum tube (13), the protrusions (131) are also provided with a pair of positioning protrusions (132) near the end (102), and the protrusions (131) and the positioning protrusions (132) are arranged non-parallel. The non-parallel arrangement here specifically means that the protrusions (131) and the positioning protrusions (132) are not in the same plane, and the two points extend horizontally and do not intersect.

A housing (40) is provided with an internal space capable of providing at least one main body (10) therein, and the housing (40) can also expand additional related components, and a positioning groove (41) is also provided inside the housing (40), and the positioning groove (41) can mainly provide the cam for connection and fixation, and another positioning groove (42) is provided near the positioning groove (41), and the positioning groove (42) can mainly provide the positioning protrusion (132) for connection and fixation, and the cam (131) and the positioning protrusion (132) can allow the main body (10) to further strengthen the connection state with the housing (40) through two fixing means.

The present invention has a three-stage vacuum generator with a vortex airflow and a multi-stage suction hole. The vortex nozzle part (30) is mainly arranged at the front end (101) of the body (10) to increase the fluid suction amount. The front end of the body (10) is matched with the first stage vacuum tube (11) to form an integrated design, which can effectively reduce the complexity of parts and increase the service life. After the second stage vacuum tube (12) and the third stage vacuum tube (13) are connected to the first stage vacuum tube (11), they are further arranged in the body (10) to form a vacuum tube assembly (14), which cooperates with the side edge of the body (10) to form a vacuum tube assembly (14). A plurality of multi-stage suction holes (20) are arranged at intervals, and the multi-stage suction holes (20) are four holes arranged in a symmetrical manner, so that the multi-stage suction holes (20) can cooperate with the vacuum tube assembly (14) to further increase the amount of fluid suction, and the third stage vacuum tube (13) further has the convex catch (131) and the positioning convex point (132), so that the main body (10) and the vacuum tube assembly (14) can utilize the non-parallel convex catch (131) and the positioning convex point (132) to allow at least one main body (10) to be accommodated in a housing (40), thereby forming a high-efficiency vacuum generator.

(10):Entity

(101):Front end

(102): End

(11): The first section of vacuum tube

(12): The second section of the vacuum tube

(13): The third section of vacuum tube

(14): Vacuum tube assembly

(20): Multi-stage suction hole

(30): Vortex nozzle parts

(31): First vortex

(32): Second vortex

(40): Shell

Claims (4)

A three-stage vacuum generator with vortex airflow and multi-stage suction holes comprises: a body (10) having a front end (101) and a rear end (102), wherein the body (10) is provided with: a first-stage vacuum tube (11), a second-stage vacuum tube (12), and a third-stage vacuum tube (13) in sequence, wherein: a vortex nozzle (30) is provided at the front end (101) to connect the body (10) to fix and increase the flow rate of the fluid, and a plurality of multi-stage suction holes (20) are provided at a certain interval on the side edge of the body (10), wherein the first-stage vacuum tube (11) and the body (13) are connected to each other. (10) is an integrated design, and the second section vacuum tube (12) and the third section vacuum tube (13) are sequentially connected to the first section vacuum tube (11) to form a vacuum tube assembly (14), so that the fluid suction volume can be further increased through the multi-stage suction hole (20), and the three-section vacuum tube (13) also includes a pair of convex catches (131), the pair of convex catches (131) are symmetrically arranged on the outer edge of the third section vacuum tube (13), and the convex catches (131) are also provided with a pair of positioning protrusions (132) near the end (102), and the convex catches (131) and the positioning protrusions (132) are arranged in a non-parallel manner. The three-stage vacuum generator with vortex airflow and multi-stage suction holes as described in claim 1 further includes: a shell (40) capable of providing at least one main body (10) to be arranged inside. As described in claim 2, the three-stage vacuum generator with vortex airflow and multi-stage suction holes, the shell (40) further includes: a positioning groove (41), the positioning groove (41) is mainly used to connect and fix the cam (131). As described in claim 3, the three-stage vacuum generator with vortex airflow and multi-stage suction holes, the shell (40) further includes: a positioning groove (42), the positioning groove (42) is mainly used to connect and fix the positioning protrusion (132).

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