CN218582386U

CN218582386U - Vacuum logic valve

Info

Publication number: CN218582386U
Application number: CN202223281041.1U
Authority: CN
Inventors: 张俊奇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-03-07
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a vacuum logic valve, which comprises a valve body, set up to the cavity in the valve body, set up the spheroid in the cavity, set up air inlet and gas outlet on the valve body, the diameter of gas outlet is less than spheroidal diameter, and the distance h to the cavity bottom of the lower of gas outlet is greater than 0. The utility model discloses a set up air inlet and gas outlet, the distance h of the lower of gas outlet to the cavity bottom is greater than 0, has reduced the spare part of vacuum logic valve, the cost is reduced simultaneously to this application processing is simple, the good reliability.

Description

Vacuum logic valve

Technical Field

The utility model belongs to the technical field of the vacuum valve, concretely relates to vacuum logic valve.

Background

The vacuum logic valve is mainly used for automatically keeping vacuum on a vacuum adsorption device, automatically opens when an object is adsorbed, and automatically closes when no object is adsorbed, and a carrying manipulator, a cnc vacuum chuck clamp, is typically applied. This technique is mainly to multipoint mode vacuum chuck anchor clamps and other adsorbed scenes that need, because of multipoint mode sucking disc needs intensive layout valve body, and single valve body is with high costs to hinder the reason that this kind of multipoint mode vacuum chuck popularized and applied, and current vacuum valve body is built-in spring top-opening type mostly, and the part is many, and processing is many, and is with high costs, and the reliability is not good enough, has a gravity ball formula vacuum logic valve in addition, but this kind of valve body intelligence is applied to downward adsorbed scene.

Chinese utility model patent with application number 201721712102.1 discloses a vacuum adsorption device, including sealed apron, the vacuum absorption board of sealed laminating in proper order, adsorption plate and install the vacuum absorption joint on sealed apron. The adsorption plate is provided with a plurality of stepped adsorption holes with the diameter of the upper surface larger than that of the lower surface, and plugging devices capable of moving up and down are placed in the holes with the large diameters of the adsorption holes; the upper part of the vacuum absorption plate is provided with a vacuum groove, and the lower part of the vacuum absorption plate is provided with air suction holes which are in one-to-one correspondence with each adsorption hole and have the diameter smaller than the large-diameter holes of the adsorption holes; the vacuum suction joint, the vacuum groove, the air suction hole and the adsorption hole are communicated in sequence. The blocking device responds that no workpiece is arranged below the adsorption hole or the blocking device cannot be in sealing fit with the surface of the workpiece to automatically block the air suction hole, is suitable for processing workpieces with different sizes and shapes, and can solve the problems that the conventional vacuum adsorption device has no universality and the negative pressure adsorption failure or the adsorption strength reduction of the whole device caused by the sealing failure of individual adsorption holes in the processing process.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: how to reduce the spare part of vacuum logic valve, reduction in production cost increases the reliability, for solving above-mentioned problem, provides a vacuum logic valve.

In order to solve the technical problem, the technical solution of the present invention is realized in the following manner:

the utility model provides a vacuum logic valve, includes the valve body, set up to the cavity in the valve body, set up the spheroid in the cavity, set up air inlet and gas outlet on the valve body, the diameter of gas outlet is less than spheroidal diameter, and the distance h of the lowest of gas outlet to the cavity bottom is greater than 0.

The air inlet is arranged at the upper end of the valve body, and the air outlet is arranged on the side wall of the valve body.

The air inlet and the air outlet are both arranged on the side wall of the valve body.

The air inlet and the air outlet are both arranged at the upper end of the valve body.

The air inlet is arranged on the side wall of the valve body, and the air outlet is arranged at the upper end of the valve body.

Compared with the prior art, the utility model discloses following benefit has: the utility model discloses a set up air inlet and gas outlet, the lower of gas outlet is greater than 0 to the distance h of cavity bottom, has reduced the spare part of vacuum logic valve, the cost is reduced simultaneously to this application processing is simple, the good reliability.

Drawings

Fig. 1 is a schematic structural diagram a of the present invention.

Fig. 2 shows the structure of the utility model during air exhaust.

Fig. 3 shows the structure of the present invention when adsorbing an object.

Fig. 4 is a schematic structural diagram B of the present invention.

Fig. 5 is a schematic structural diagram C of the present invention.

Fig. 6 is a schematic structural diagram D of the present invention.

Wherein 1 is an air inlet; 2 is an air outlet; 3 is a sphere; 4 is a valve body; and 5 is an adsorption object.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described clearly and completely below with reference to the accompanying drawings. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

The invention will now be further described with reference to the following examples and drawings:

as shown in the figure, the vacuum logic valve comprises a valve body 4, wherein a cavity is arranged in the valve body 4, a ball body 3 is arranged in the cavity, an air inlet 1 and an air outlet 2 are arranged on the valve body 4, the diameter of the air outlet 2 is smaller than that of the ball body 3, the ball body 3 is prevented from being sucked out of the air outlet 2 when air is sucked, the distance h from the lowest part of the air outlet 2 to the bottom of the cavity is larger than 0, when the air suction force during air suction is a fixed value, the smaller h is, and the easier the ball body 3 is sucked by the air outlet 2. The application should be used with the end containing the ball 3 facing downwards and the end without the ball 3 facing upwards. The method has the advantages of few parts, low cost, simple processing and good reliability.

As shown in fig. 1, the gas inlet 1 is provided at the upper end of the valve body 4, and the gas outlet 2 is provided at the sidewall of the valve body 4. This setting is the preferred design, and it is integrated into the vacuum adsorption platform more easily, but air inlet 1 need up, and this kind of vacuum adsorption platform is placed for the horizontal plane and adsorbs promptly, and air inlet 1 need be above, otherwise probably adsorbs unsuccessfully.

As shown in fig. 4, the gas inlet 1 and the gas outlet 2 are both provided in the side wall of the valve body 4. The air inlet 1 and the air outlet 2 can be arranged on the same side wall or different side walls, and the using effect of the air inlet and the air outlet cannot be influenced.

As shown in fig. 5, the air inlet 1 and the air outlet 2 are both disposed at the upper end of the valve body 4. The arrangement is also a vacuum adsorption structure, which can adsorb the above objects, but because the air inlet 1 and the air outlet 2 are both arranged at the upper ends, other parts may be needed for auxiliary adsorption in practical use.

As shown in fig. 6, the gas inlet 1 is provided in a side wall of the valve body 4, and the gas outlet 2 is provided in an upper end of the valve body 4. This setting is also better design, and it is integrated as the vacuum adsorption platform more easily, but air inlet 1 need be towards the side, and this kind of vacuum adsorption platform is placed for vertical face promptly and adsorbs, and air inlet 1 need be in the side, otherwise probably adsorb unsuccessfully.

The working process of the utility model is as follows:

when air is pumped from the air outlet 2, the air pressure of the ball 3 close to the air outlet 2 is low, and the air pressure pushes the ball 3 in the cavity of the valve body 4 to the air outlet 2 and blocks the air outlet 2, so that the cavity is isolated from the air outlet 2.

When the adsorption object 5 is adsorbed to the air inlet 1, the atmospheric pressure at each position in the cavity is the same, the sphere 3 is attracted by gravity and falls from the air outlet 2, and the cavity is communicated with the air outlet 2 to realize adsorption.

While the preferred embodiments of the present invention have been described, it should be understood that various changes and modifications may be made therein by those skilled in the art without departing from the general concept of the invention, and it is intended that such changes and modifications be considered as within the scope of the invention.

Claims

1. The utility model provides a vacuum logic valve, includes valve body (4), set up to the cavity in valve body (4), set up spheroid (3) in the cavity, its characterized in that, set up air inlet (1) and gas outlet (2) on valve body (4), the diameter of gas outlet (2) is less than the diameter of spheroid (3), and the distance h to the cavity bottom of the lowest of gas outlet (2) is greater than 0.

2. A vacuum logic valve according to claim 1, characterized in that the inlet port (1) is arranged at the upper end of the valve body (4) and the outlet port (2) is arranged at the side wall of the valve body (4).

3. A vacuum logic valve according to claim 1, characterized in that the inlet (1) and outlet (2) ports are arranged in the side wall of the valve body (4).

4. A vacuum logic valve according to claim 1, characterized in that the inlet (1) and outlet (2) ports are arranged at the upper end of the valve body (4).

5. A vacuum logic valve according to claim 1, characterized in that the inlet port (1) is arranged in the side wall of the valve body (4) and the outlet port (2) is arranged in the upper end of the valve body (4).