Control valve of pneumatic rod

Abstract

The control valve of the pneumatic rod comprises a valve body, the bottom of the side wall of the valve body is fixedly connected with a first air inlet pipe, the first air inlet pipe is communicated with the valve body, the end, away from the valve body, of the first air inlet pipe is communicated with a transition pipe, the interior of the transition pipe is fixedly connected with a filter plate, and filter holes are formed in the filter plate in a penetrating mode. A round hole is formed in the filter plate, the round hole and the filter plate are concentrically arranged, a rotating shaft is rotationally connected to the interior of the round hole, the rotating shaft extends into the first air inlet pipe, and a rotating box is fixedly connected to the rotating shaft. According to the control valve of the pneumatic rod, by arranging the transition pipe, the filter plate, the rotating box and other structures, before gas enters the valve body, impurities can be filtered out through the filter plate and the filter holes in a matched mode, the influence of the impurities on the airtightness of the valve body is prevented, meanwhile, the cleaning plate is attached to the filter plate to be pushed, scraped and cleaned, and the impurities enter the rotating box through the square groove and are prevented from being attached to the filter plate again.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic rod technical field, especially pneumatic rod's control valve. BACKGROUND

[0002] Pneumatic lifting rod is generally valve body and lifting rod part composition, valve body part connects the air inlet.

[0003] The existing pneumatic lifting rod valve body connects the air inlet, lacks the component of the gas filtration, can easily bring the influence to the air tightness in the pneumatic lifting rod.

[0004] Such as the patent with the name: pneumatic lifting rod valve body (patent application number: CN202222617949.9) discloses the pneumatic lifting rod valve body, sets up a transition cavity on the air inlet of valve body, sets up the impurity removal self anti-blocking mechanism in transition ring, the filter screen in the impurity removal self anti-blocking mechanism can filter the gas in the valve body and remove the impurity, prevent the influence of impurity to the air tightness of valve body, and utilize the airflow in the air inlet to drive the impeller to rotate, the impeller drives the brush to rotate through the rotating shaft, so that the brush sweeps the filter screen, prevents the blockage of filter screen itself, guarantees the normality of air intake, but the impurities swept by the brush still stay in the transition cavity, can easily adhere to the filter screen again, and the use efficiency needs to be improved.

[0005] Therefore, it is necessary to provide a pneumatic rod control valve for solving the above problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a pneumatic rod control valve, to solve the problem that the impurities swept by the brush still stay in the transition cavity, can easily adhere to the filter screen again, and the use efficiency needs to be improved.

[0007] To achieve the above object, the utility model provides the following technical scheme: a pneumatic rod control valve, including the valve body, the bottom of the valve body lateral wall is fixedly connected with first air pipe, first air pipe is communicated with the valve body, the one end of first air pipe is communicated with the transition pipe away from the valve body, the inside of transition pipe is fixedly connected with filter plate, is equipped with filter hole on the filter plate, is equipped with round hole on the filter plate, and the round hole is concentric with the filter plate, and the inside of round hole is rotatably connected with the rotating shaft, and the rotating shaft extends into the inside of first air pipe, the rotating shaft is fixedly connected with the rotating box, the rotating box is located on the side of filter plate away from first air pipe, and the rotating box is attached on the filter plate, the lateral wall of rotating box is equipped with square groove.

[0008] Preferably, the first air pipe is L-shaped.

[0009] Preferably, the outer wall of the rotating box is fixedly connected with a cleaning plate, the cleaning plate is distributed corresponding to the square groove, and the cleaning plate is attached to the filter plate.

[0010] Preferably, the filter holes are arranged in a plurality.

[0011] Preferably, a fan blade is fixedly connected to the rotating shaft, and the fan blade is located on the side of the filter plate away from the first air inlet pipe.

[0012] Preferably, a flow distribution plate is fixedly connected to one end of the rotating shaft inside the first air inlet pipe.

[0013] Preferably, an air bag is fixedly connected to the inner wall of the first air inlet pipe, and the air bag is located at the inner corner of the first air inlet pipe.

[0014] Preferably, a second air inlet pipe is communicated with the end of the transition pipe away from the first air inlet pipe.

[0015] Preferably, a lifting rod is slidably arranged in the valve body.

[0016] The beneficial technical effects of the utility model lie in that: by arranging the transition pipe, the filter plate and the rotating box and other structures, impurities can be filtered out by the filter plate and the filter holes before the gas enters the inside of the valve body, preventing the impurities from affecting the air tightness of the valve body, and the cleaning plate is attached to the filter plate to push and scrape for cleaning, the impurities enter the inside of the rotating box from the square groove, avoiding re-attachment on the filter plate; when the rotating shaft rotates, the flow distribution plate rotates synchronously, the gas entering the first air inlet pipe from the transition pipe is stirred, the gas pressure is dispersed, an air bag is arranged at the inner corner of the first air inlet pipe, the pressure of the airflow at the inner corner of the first air inlet pipe is reduced, and the noise is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a control valve structure schematic view of the utility model pneumatic rod.

[0018] Figure 2 It is a valve body and lifting rod structure schematic view of the utility model.

[0019] Figure 3 It is a control valve structure schematic view of the utility model pneumatic rod. Figure 2 It is an enlarged schematic view of structure in A of the utility model.

[0020] Figure 4 It is a valve body structure schematic view of the utility model.

[0021] Figure 5 It is an enlarged schematic view of structure in B of the utility model. Figure 4

[0022] In the drawing: 1, valve body; 2, lifting rod; 3, first air inlet pipe; 4, transition pipe; 5, second air inlet pipe; 6, filter plate; 7, rotating box; 8, rotating shaft; 9, square groove; 10, cleaning plate; 11, flow distribution plate; 12, air bag; 13, filter hole; 14, fan blade. DETAILED DESCRIPTION​

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-5 As shown, this utility model provides a pneumatic rod control valve, including a valve body 1, a lifting rod 2 slidably disposed inside the valve body 1, the valve body 1 being injection molded from engineering plastic, a first air inlet pipe 3 fixedly connected to the bottom of the side wall of the valve body 1, the first air inlet pipe 3 communicating with the valve body 1, a transition pipe 4 connected to the end of the first air inlet pipe 3 away from the valve body 1, and a second air inlet pipe 5 connected to the end of the transition pipe 4 away from the first air inlet pipe 3, the inner diameter of the transition pipe 4 being larger than the inner diameters of the first air inlet pipe 3 and the second air inlet pipe 5. Gas is injected into the valve body 1 through the second air inlet pipe 5, the transition pipe 4, and the first air inlet pipe 3 to control the extension of the lifting rod 2.

[0025] A filter plate 6 is fixedly connected inside the transition pipe 4. Filter holes 13 are opened through the filter plate 6. The filter holes 13 have a small inner diameter and there are multiple filter holes 13. Before the gas enters the valve body 1, impurities will be filtered out by the filter plate 6 and the filter holes 13 to prevent impurities from affecting the airtightness of the valve body 1.

[0026] A circular hole is provided on the filter plate 6, and the circular hole is concentric with the filter plate 6. A rotating shaft 8 is rotatably connected inside the circular hole, and the rotating shaft 8 extends into the interior of the first air inlet pipe 3. Fan blades 14 are fixedly connected to the rotating shaft 8. There are multiple fan blades 14, preferably three, located on the side of the filter plate 6 facing away from the first air inlet pipe 3. When gas is injected into the valve body 1 through the second air inlet pipe 5, the transition pipe 4, and the first air inlet pipe 3, the airflow drives the rotating shaft 8 to rotate through the fan blades 14.

[0027] A rotating box 7 is fixedly connected to the rotating shaft 8. The rotating box 7 is located on the side of the filter plate 6 facing away from the first air inlet pipe 3, and it is attached to the filter plate 6. A square groove 9 is provided on the side wall of the rotating box 7. A cleaning plate 10 is fixedly connected to the outer wall of the rotating box 7. The cleaning plate 10 is distributed correspondingly to the square groove 9 and is attached to the filter plate 6. When the rotating shaft 8 rotates, it will drive the rotating box 7 and the cleaning plate 10 to rotate synchronously. The cleaning plate 10 and the square groove 9 are located at the front end of the rotating box 7 in the direction of rotation. The cleaning plate 10 is attached to the filter plate 6 and pushes and scrapes to clean it. Impurities enter the interior of the rotating box 7 through the square groove 9, completing the automatic collection of impurities.

[0028] In actual use, the gas is injected into the valve body 1 through the second gas inlet pipe 5, the transition pipe 4 and the first gas inlet pipe 3. Before the gas enters the inside of the valve body 1, the impurities are filtered out by the filter plate 6 and the filter hole 13, and the impurities are attached to the filter plate 6. The airflow drives the rotation of the rotating shaft 8 through the fan blade 14. When the rotating shaft 8 rotates, the rotating box 7 and the cleaning plate 10 rotate synchronously. The cleaning plate 10 and the square groove 9 are located at the front end of the rotating direction of the rotating box 7. The cleaning plate 10 is attached to the filter plate 6 to push and scrape cleaning. The impurities enter the inside of the rotating box 7 through the square groove 9, so as to avoid being attached to the filter plate 6 again.

[0029] The operator can regularly process the impurities in the rotating box 7.

[0030] By setting the transition pipe 4, the filter plate 6 and the rotating box 7 and other structures, the impurities are filtered out by the filter plate 6 and the filter hole 13 before the gas enters the inside of the valve body 1. The cleaning plate 10 is attached to the filter plate 6 to push and scrape cleaning. The impurities enter the inside of the rotating box 7 through the square groove 9, so as to avoid being attached to the filter plate 6 again.

[0031] The first gas inlet pipe 3 is L-shaped (refer to Figure 3 ), so that the axis of the transition pipe 4 can be vertically distributed, the rotating shaft 8 is also vertically distributed, and the rotating box 7 rotates along the horizontal direction. The impurities in the inside of the rotating box 7 are not easy to fall out.

[0032] The inner wall of the first gas inlet pipe 3 is fixedly connected with the air bag 12. The air bag 12 is located at the inner corner of the first gas inlet pipe 3.

[0033] One end of the rotating shaft 8 located in the inside of the first gas inlet pipe 3 is fixedly connected with the flow divider 11.

[0034] When the rotating shaft 8 rotates, the flow divider 11 rotates synchronously. The gas entering the first gas inlet pipe 3 from the transition pipe 4 is stirred, so that the gas pressure is dispersed. At the same time, the air bag 12 is arranged at the inner corner of the first gas inlet pipe 3, so as to reduce the pressure of the airflow at the inner corner of the first gas inlet pipe 3, and reduce the noise.

Claims

1. A control valve for a pneumatic rod, characterized by: The utility model relates to a valve body (1), the bottom of the side wall of valve body (1) is fixedly connected with first air inlet pipe (3), first air inlet pipe (3) communicates with valve body (1), the one end of first air inlet pipe (3) away from valve body (1) is communicated with transition pipe (4), the inside of transition pipe (4) is fixedly connected with filter plate (6), the filter hole (13) is passed through and seted up on filter plate (6), the circular hole is seted up on filter plate (6), and the circular hole is concentric with filter plate (6) and is rotatably connected with the rotating shaft (8) in the inside of circular hole, and the rotating shaft (8) extends into the inside of first air inlet pipe (3), the rotating box (7) is fixedly connected on the rotating shaft (8), the rotating box (7) is located on the side of filter plate (6) away from first air inlet pipe (3), and the rotating box (7) is attached on filter plate (6), the side wall of rotating box (7) is seted up with square groove (9).

2. A control valve for a pneumatic rod according to claim 1, characterized in that: The first air inlet pipe (3) is L-shaped.

3. A control valve for a pneumatic rod according to claim 1, characterized in that: The outer wall of the rotating box (7) is fixedly connected with a cleaning plate (10), the cleaning plate (10) is distributed correspondingly with the square groove (9), and the cleaning plate (10) is attached on the filter plate (6).

4. A control valve for a pneumatic rod according to claim 1, characterized in that: The filter hole (13) is provided with a plurality of.

5. A control valve for a pneumatic rod according to claim 1, characterized in that: The rotating shaft (8) is fixedly connected with a fan blade (14), and the fan blade (14) is located on the side of the filter plate (6) away from the first air inlet pipe (3).

6. A control valve for a pneumatic rod according to claim 1, characterized in that: The one end of the rotating shaft (8) in the first air inlet pipe (3) is fixedly connected with a shunt plate (11).

7. A control valve for a pneumatic rod according to claim 1, characterized in that: The inner wall of the first air inlet pipe (3) is fixedly connected with an air bag (12), and the air bag (12) is located at the inner corner of the first air inlet pipe (3).

8. A control valve for a pneumatic rod according to claim 1, characterized in that: The one end of the transition pipe (4) away from the first air inlet pipe (3) is communicated with a second air inlet pipe (5).

9. A control valve for a pneumatic rod according to claim 1, characterized in that: The valve body (1) is slidably provided with a lifting rod (2).

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