CN107035906A - A kind of automatically cleaning fluid flow directional control valve - Google Patents

Abstract

The invention discloses a self-cleaning fluid flow direction control valve, which comprises a valve body and a rotating shaft. The valve body is provided with a rotating shaft installation hole for inserting the rotating shaft. A bottom support is installed outside the rotating shaft installation hole. The bottom support is rotatably connected to the shaft; the bottom surface of the bottom support away from the shaft is provided with a sewage gap that can be communicated with the shaft installation hole, so that carbon deposits and accumulations in the shaft installation hole Water is discharged along the blowdown gap. In the self-cleaning fluid flow direction control valve provided by the present invention, by opening the sewage discharge gap on the bottom support member, when water and carbon deposits appear in the shaft installation hole, the water and carbon deposits can pass through the The sewage discharge gap flows out of the valve body, effectively avoiding stuck faults caused by accumulated water and carbon deposits, achieving a self-cleaning effect, and effectively improving reliability and service life.

Description

A self-cleaning fluid flow direction control valve

technical field

The invention relates to the field of control valve equipment, in particular to a self-cleaning fluid flow direction control valve.

Background technique

At present, in the control process of smoke emission, such as automobile exhaust or other smoke exhaust systems, the direction and flow of exhaust smoke are generally controlled by a single valve plate flow control valve.

The mounting hole of the lower rotating shaft of the fluid flow direction control valve in the prior art is a blind hole. When in use, the lower shaft is sleeved on the rotating shaft and then put into the blind hole. However, since the mounting hole of the lower rotating shaft in the prior art is Blind hole, and the blind hole is a semi-closed structure. After a long time of use, it is easy to accumulate carbon and water in the blind hole, which may easily cause the lower shaft sleeve and the blind hole to get stuck.

Therefore, how to improve the reliability of the fluid flow direction control valve is a technical problem that those skilled in the art need to solve.

Contents of the invention

The purpose of the present invention is to provide a self-cleaning fluid flow directional control valve, which can realize the purpose of self-cleaning, realize the automatic flow of sewage or dust, and ensure the reliability and service life of the control valve.

To achieve the above object, the present invention provides the following technical solutions:

A self-cleaning fluid flow direction control valve, including a valve body and a rotating shaft, the valve body is provided with a rotating shaft installation hole for the rotating shaft to be inserted into, and a bottom support is installed outside the rotating shaft installation hole, and the bottom support The part is rotatably connected with the rotating shaft; the bottom surface of the bottom support away from the rotating shaft is provided with a sewage gap that can be communicated with the rotating shaft installation hole, so that the carbon and water in the rotating shaft installation hole can move along the Sewage gap discharge.

Preferably, a boss is provided on the side of the bottom support near the rotating shaft, and a blind hole is provided at the end of the rotating shaft that can be sleeved with the boss.

Preferably, a rolling part is provided between the boss and the blind hole, and the top of the boss and the bottom of the blind hole abut against two sides of the rolling part respectively.

Preferably, the rolling member is specifically a ball, and the top of the boss is provided with an arc-shaped groove for placing the ball.

Preferably, both ends of the bottom support are arc-shaped, and the width of the two ends of the bottom support gradually increases towards the middle.

Preferably, both ends of the bottom support member are provided with mounting holes for bolts to be inserted into, and the valve body is provided with threaded holes for matching with the bolts.

Preferably, the sewage discharge slot is annular.

Preferably, in the extending direction of the rotating shaft installation hole, the gap between the rotating shaft and the rotating shaft installation hole can be projected into the sewage discharge gap.

Preferably, the distance between the sewage discharge slits is greater than the distance between the rotating shaft and the rotating shaft installation hole.

Preferably, several drainage holes are opened on the valve body.

The self-cleaning fluid flow directional control valve provided by the present invention includes a valve body and a rotating shaft. The valve body is provided with a rotating shaft installation hole for inserting the rotating shaft. A bottom support is installed outside the rotating shaft installation hole. The bottom support member is connected to the rotating shaft in rotation; the bottom surface of the bottom support member away from the rotating shaft is provided with a sewage discharge gap that can communicate with the rotating shaft installation hole, so that the carbon and water accumulation in the rotating shaft installation hole Discharge along the sewage gap. In the self-cleaning fluid flow direction control valve, by opening the sewage discharge gap on the bottom support member, when water and carbon deposits appear in the shaft installation hole, the accumulated water and carbon deposits can flow out through the sewage discharge gap The valve body effectively avoids stuck faults caused by accumulated water and carbon deposits, achieves a self-cleaning effect, and effectively improves reliability and service life.

In a preferred embodiment, a boss is provided on a side of the bottom support member close to the rotating shaft, and a blind hole that can be sleeved with the boss is provided at the end of the rotating shaft. With the above arrangement, the connection between the rotating shaft and the bottom support member is through the sleeve of the boss and the blind hole, which can prevent carbon deposits and water from entering the space between the rotating shaft and the bottom support member. The connection surface ensures the reliability of the rotational connection between the two, and further improves the reliability and service life of the control valve.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a structural schematic diagram of a specific embodiment of the self-cleaning fluid flow direction control valve provided by the present invention;

Fig. 2 is a partially enlarged view of the rotating shaft and the mounting hole of the rotating shaft of the control valve shown in Fig. 1;

Fig. 3 is a schematic view of the structure of the bottom support of the control valve shown in Fig. 1;

Fig. 4 is a schematic cross-sectional structure diagram of a bottom support member of the control valve shown in Fig. 1;

Among them: 1-valve body, 11-drain hole, 2-rotating shaft, 3-bottom support, 31-drainage gap, 32-bolt, 4-ball.

detailed description

The core of the present invention is to provide a self-cleaning fluid flow directional control valve. The fluid flow directional control valve has a self-cleaning function, which can realize the automatic flow of sewage or dust, and ensure the reliability and service life of the control valve.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1 to 4, Figure 1 is a schematic structural view of a specific embodiment of the self-cleaning fluid flow directional control valve provided by the present invention; Figure 2 is a partial enlargement of the shaft and shaft installation hole of the control valve shown in Figure 1 Figure; Figure 3 is a schematic view of the bottom support of the control valve shown in Figure 1; Figure 4 is a schematic cross-sectional view of the bottom support of the control valve shown in Figure 1.

In this embodiment, the self-cleaning fluid flow directional control valve includes a valve body 1 and a rotating shaft 2, the valve body 1 is provided with a rotating shaft installation hole for inserting the rotating shaft 2, the rotating shaft installation hole is a through hole, and the outer part of the rotating shaft installation hole is installed Bottom support 3, bottom support 3 is rotatably connected with rotating shaft 2; the bottom surface of bottom support 3 far away from rotating shaft 2 is provided with a sewage slit 31 that can be communicated with the rotating shaft installation hole, so that the carbon deposits and accumulated water in the rotating shaft installation hole along the Sewage discharge slot 31 is discharged.

The bottom of the above-mentioned bottom support member 3 refers to the end away from the inner cavity of the valve body 1 .

The self-cleaning fluid flow directional control valve, by setting up a sewage discharge gap 31 on the bottom support member 3, when water and carbon deposits appear in the shaft installation hole, the accumulated water and carbon deposits can flow out of the valve body 1 through the sewage discharge gap 31, effectively Avoid stuck faults caused by accumulated water and carbon deposits, achieve self-cleaning effects, and effectively improve reliability and service life.

On the basis of the above-mentioned embodiments, a boss is provided on the side of the bottom support member 3 close to the rotating shaft 2 , and a blind hole is provided at the end of the rotating shaft 2 to be socketed with the boss. The above setting, the shaft 2 and the bottom support 3 are connected through the boss and the blind hole, which can prevent carbon deposits and water from entering the connection surface between the shaft 2 and the bottom support 3, and ensure the rotational connection of the two The reliability of the valve further improves the reliability and service life of the control valve.

On the basis of the above-mentioned embodiments, a rolling part is provided between the boss and the blind hole, and the top of the boss and the bottom of the blind hole respectively abut against both sides of the rolling part, and the rolling part can reduce the size of the boss and the blind hole. The friction force between the inner walls of the holes, that is, to reduce the friction force between the rotating shaft 2 and the bottom support member. It should be noted that the bottom of the above-mentioned blind hole refers to the end of the blind hole away from the opening.

On the basis of the above-mentioned embodiments, the rolling member is specifically a ball 4, which is easy to install and has low friction; meanwhile, the top of the boss is provided with an arc-shaped groove for placing the ball 4 to limit the position of the ball 4 .

On the basis of the above-mentioned embodiments, both ends of the bottom support 3 are arc-shaped, and the width of both ends of the bottom support 3 gradually increases towards the middle, and the sewage discharge gap 31 is arranged at the middle position of the bottom support 3 .

Specifically, the bottom support 3 includes a support body and a bottom plate, the bottom plate is diamond-shaped, both ends of the support body are circular, the middle of the support body is strip-shaped, and the sewage gap 31 is cut off by the middle part of the support body. Arc-shaped gaps are formed on both sides of the main body of the support; the boss is located on the main body of the support, and a stepped surface is provided on the main body of the support;

On the basis of the above-mentioned embodiments, both ends of the bottom support 3 are provided with mounting holes for the insertion of the bolts 32, and the valve body 1 is provided with threaded holes for matching with the bolts 32. The threaded connection is convenient for disassembly and maintenance. Certainly, the bottom support member 3 and the valve body 1 may also be fixed by means of welding or riveting.

On the basis of the above embodiments, the sewage discharge gap 31 is annular, and the circular sewage discharge gap 31 can cooperate with the gap between the rotating shaft 2 and the through hole, and the sewage discharge effect is good.

On the basis of the above-mentioned embodiments, in the extension direction of the shaft installation hole, the gap between the shaft 2 and the shaft installation hole can be projected into the sewage gap 31, that is, the product in the gap between the shaft 2 and the shaft installation hole. Carbon and stagnant water can directly flow into the sewage gap 31, and the sewage discharge efficiency is high.

On the basis of the above-mentioned embodiments, the distance between the sewage discharge gaps 31 is greater than the distance between the rotating shaft 2 and the mounting hole of the rotating shaft. On the premise of not affecting the strength of the bottom support 3, the distance between the sewage discharge gaps 31 can be increased to increase sewage capacity.

On the basis of the above-mentioned embodiments, the valve body 1 is provided with a number of drainage holes, which can drain the sewage in the valve body 1 and further improve the self-cleaning effect of the control valve.

Specifically, the self-cleaning fluid flow direction control valve can be specifically a three-way valve, the bottom support 3 is connected to the valve body 1 through bolts 32, the ball 4 is located on the top of the bottom support 3, and the bottom of the shaft 2 is provided with a blind hole , set on the ball 4 and the bottom support 3, carbon deposits and accumulated water can flow out of the valve body 1 through the sewage gap 31 between the bottom support 3 and the valve body 1; at the same time, the top of the bottom support 3 is provided with a groove , used to install the ball 4; the bottom of the valve body 1 is also provided with a number of drain holes, water can flow out from the drain holes at the bottom of the valve body 1.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The self-cleaning fluid flow direction control valve provided by the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (10)

1. A self-cleaning fluid flow directional control valve, comprising a valve body (1) and a rotating shaft (2), characterized in that, the valve body (1) is provided with a rotating shaft mounting hole for the rotating shaft (2) to be inserted into , the bottom support (3) is installed on the outside of the shaft installation hole, and the bottom support (3) is rotatably connected with the shaft (2); the bottom support (3) is away from the shaft (2) The bottom surface of the bottom surface is provided with a sewage slit (31) that can communicate with the shaft installation hole, so that the carbon deposits and water in the shaft installation hole can be discharged along the sewage slit (31). 2. The self-cleaning fluid flow directional control valve according to claim 1, characterized in that, the bottom support (3) is provided with a boss near the side of the rotating shaft (2), and the rotating shaft (2) The end part is provided with a blind hole that can be sleeved with the boss. 3. The self-cleaning fluid flow directional control valve according to claim 2, wherein a rolling part is arranged between the boss and the blind hole, and the top of the boss is in contact with the blind hole. The bottom abuts against both sides of the rolling member respectively. 4. The self-cleaning fluid flow directional control valve according to claim 3, wherein the rolling member is specifically a ball (4), and the top of the boss is provided with a place for the ball (4) to place. Curved groove. 5. The self-cleaning fluid flow directional control valve according to claim 1, characterized in that, the two ends of the bottom support (3) are arc-shaped, and the two ends of the bottom support (3) are toward the middle The width gradually increases. 6. The self-cleaning fluid flow directional control valve according to claim 5, characterized in that, both ends of the bottom support (3) are provided with mounting holes for bolts (32) to be inserted, and the valve body ( 1) It is provided with a threaded hole matched with the bolt (32). 7. The self-cleaning fluid flow directional control valve according to any one of claims 1 to 6, characterized in that, the sewage discharge gap (31) is annular. 8. The self-cleaning fluid flow directional control valve according to claim 7, characterized in that, in the extension direction of the shaft installation hole, the gap between the shaft (2) and the shaft installation hole can be projected In the sewage discharge gap (31). 9. The self-cleaning fluid flow directional control valve according to claim 8, characterized in that, the distance between the sewage discharge gap (31) is greater than the distance between the rotating shaft (2) and the rotating shaft installation hole. 10. The self-cleaning fluid flow directional control valve according to claim 7, characterized in that, the valve body (1) is provided with several drain holes.