Small pneumatic valve

Abstract

The utility model discloses a small pneumatic valve which comprises a pneumatic valve body, an extension pipe is arranged on the outer side of the pneumatic valve body, threads are formed in the surface of the extension pipe, a screwing device is connected to the outer side of the extension pipe in a threaded mode, a fixing plate is welded to the outer side of the screwing device, and a resistance block is welded to the inner side of the fixing plate. A flange plate is arranged on the inner side of the resistance block. According to the small pneumatic valve, the extension pipe is installed on the outer side of the pneumatic valve body, threads are formed in the surface of the extension pipe, then the outer side of the extension pipe is connected with the screwing device through the threads, the fixing plate is welded to the outer side of the screwing device, and the resistance block is welded to the inner side of the fixing plate, so that the connecting position can be preliminarily positioned through the screwing device during installation; by means of the design, primary fixing can be achieved, the screwing device can be rotated to achieve the secondary fastening effect after the device is installed, operation is easy, and installation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic valves, in particular to a small pneumatic valve. Background Art

[0002] Small pneumatic valves are increasingly used in the field of industrial automation. They are mainly used to control media such as gas, steam, and liquid. They can achieve proportional adjustment and have super shearing ability. They have compact structure, good stability, strong versatility, light weight, low height, sensitive action, long service life, and easy maintenance. These characteristics make them widely used in chemical, petroleum, food and other fields.

[0003] The small pneumatic valves currently on the market have the following problems during use:

[0004] 1. When using traditional small pneumatic valves, most pneumatic valve connections are not fixed with bolts, and usually two people are required to align and support the pneumatic valve connections. This not only consumes manpower but also makes the operation and installation more troublesome.

[0005] 2. When using traditional small pneumatic valves, many pneumatic valves on the market have low sealing between pipes when connecting multiple pipes, which may cause air leakage or liquid leakage during use, resulting in low practicality of the pneumatic valve. Utility Model Content

[0006] The purpose of the utility model is to provide a small pneumatic valve to solve the technical problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the specific technical solution of the utility model is as follows: a small pneumatic valve, including a pneumatic valve body, an extension tube is provided on the outside of the pneumatic valve body, a thread is provided on the surface of the extension tube, the outer side of the extension tube is threadedly connected to a screwing device, a fixing plate is welded on the outer side of the screwing device, a resistance block is welded on the inner side of the fixing plate, and a flange is provided on the inner side of the resistance block.

[0008] Preferably, a two-way sealing mechanism is provided on the outside of the pneumatic valve body, a sealing ring is installed on the outside of the pneumatic valve body, a flange is provided on the outside of the sealing ring, an extension pipe is welded on the inside of the flange, a threaded hole is opened on the inside of the flange, a bolt is provided inside the threaded hole, and the bolt passes through the sealing ring and is threadedly connected to the pneumatic valve body.

[0009] Preferably, gripping rods are welded on the surface of the screwing device, and the gripping rods are symmetrically distributed.

[0010] Preferably, a pump tube is welded to the surface of the pneumatic valve body, and a pump body is installed on the top of the pump tube.

[0011] Preferably, an air inlet is provided on the outer side of the pump body, and the air inlets are symmetrically distributed.

[0012] Preferably, a secondary pipe is provided at the other end of the extension pipe, a flange is welded on the surface of the secondary pipe, a threaded hole is provided on the inner side of the flange, and a bolt is provided inside the threaded hole.

[0013] The small pneumatic valve of the utility model has the following advantages:

[0014] 1. This small pneumatic valve is constructed by installing an extension tube on the outside of the pneumatic valve body, threading the surface of the extension tube, and then connecting the outside of the extension tube to a screwing device through threads. A fixing plate is welded to the outside of the screwing device, and a resistance block is welded to the inside of the fixing plate. In this way, the screwing device can be used to initially locate the connection during installation, eliminating the need for two people to complete the docking. This design not only provides initial fixation, but also allows the screwing device to be rotated to achieve secondary tightening after the device is installed, making operation simple and convenient.

[0015] 2. This small pneumatic valve can perform multiple sealing treatments on the pipe connections of the pneumatic valve through the installed two-way sealing mechanism, effectively increasing the sealing performance of the pneumatic valve, effectively avoiding the occurrence of air or liquid leakage at the pipe connections of the pneumatic valve, and increasing the practicality of the pneumatic valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the extension tube structure of the utility model;

[0019] Figure 3 This is a structural diagram of the screwing device of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of the bidirectional sealing mechanism of the utility model.

[0021] Explanation of the marks in the figure: 1. Pneumatic valve body; 2. Extension pipe; 3. Auxiliary pipe; 4. Pump body; 5. Grip; 6. Resistance block; 7. Bolt; 8. Screwing device; 9. Flange; 10. Sealing ring; 11. Fixing plate; 12. Two-way sealing mechanism; 13. Pump pipe. DETAILED DESCRIPTION

[0022] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0023] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0025] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0026] The disclosure below provides many different embodiments or examples for implementing different structures of the embodiments of the present invention. In order to simplify the disclosure of the embodiments of the present invention, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. In addition, the embodiments of the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0027] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a small pneumatic valve of the present invention in conjunction with the accompanying drawings.

[0028] like Figure 1-4 As shown, a small pneumatic valve of the utility model includes a pneumatic valve body 1, an extension tube 2 is provided on the outside of the pneumatic valve body 1, a thread is provided on the surface of the extension tube 2, the outer thread of the extension tube 2 is connected to the screwing device 8, the outer side of the screwing device 8 is welded with a fixing plate 11, the inner side of the fixing plate 11 is welded with a resistance block 6, and the inner side of the resistance block 6 is provided with a flange 9. Through the designed screwing device 8, the connection can be initially positioned by the screwing device 8 during installation, and there is no need for two people to complete the docking. This design can not only be used for preliminary fixation, but also can be used to rotate the screwing device 8 after the device is installed to achieve secondary tightening, which makes the operation simple and convenient to install.

[0029] A two-way sealing mechanism 12 is provided on the outside of the pneumatic valve body 1, and a sealing ring 10 is installed on the outside of the pneumatic valve body 1. A flange 9 is provided on the outside of the sealing ring 10, and an extension pipe 2 is welded on the inside of the flange 9. A threaded hole is provided on the inside of the flange 9, and a bolt 7 is provided inside the threaded hole. The bolt 7 passes through the sealing ring 10 and is threadedly connected to the pneumatic valve body 1. Through the installed two-way sealing mechanism 12, the pipeline connection of the pneumatic valve can be multiple-sealed, which effectively increases the sealing performance of the pneumatic valve, effectively avoids the occurrence of air leakage or liquid leakage at the pipeline connection of the pneumatic valve, and increases the practicality of the pneumatic valve.

[0030] The surface of the screwing device 8 is welded with a grip 5, which is symmetrically distributed. The grip 5 provides a support point for exerting force during use, making it easier to use.

[0031] A pump tube 13 is welded to the surface of the pneumatic valve body 1 , and a pump body 4 is installed on the top of the pump tube 13 . The pump body 4 is provided to better control the operation of the pneumatic valve.

[0032] An air inlet is provided on the outside of the pump body 4, and the air inlets are symmetrically distributed. The air inlet can be used to connect an air inlet pipe to achieve the effect of air intake.

[0033] A secondary pipe 3 is provided at the other end of the extension pipe 2, and a flange 9 is welded on the surface of the secondary pipe 3. A threaded hole is provided on the inner side of the flange 9, and a bolt 7 is provided inside the threaded hole. The bolt 7 makes the connection of the extension pipe 2 more secure.

[0034] The working principle of this small pneumatic valve: When using this small pneumatic valve, an extension tube 2 is installed on the outside of the pneumatic valve body 1, and a thread is opened on the surface of the extension tube 2. Then the outside of the extension tube 2 is connected to the screwing device 8 through a thread, and the outside of the screwing device 8 is welded to the fixed plate 11. The resistance block 6 is welded to the inside of the fixed plate 11. In this way, the connection can be initially positioned by the screwing device 8 during installation, and there is no need for two people to complete the docking. This design can not only provide initial fixation, but also can rotate the screwing device 8 to achieve secondary tightening after the device is installed, making the operation simple and convenient to install. When connecting multiple pipelines, the installed two-way sealing mechanism 12 can perform multiple sealing treatments on the pipeline connections of the pneumatic valve, effectively increasing the sealing performance of the pneumatic valve, effectively avoiding the occurrence of air leakage or liquid leakage at the pipeline connection of the pneumatic valve, and increasing the practicality of the pneumatic valve.

[0035] It is understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A small pneumatic valve, comprising a pneumatic valve body (1), characterized in that: An extension tube (2) is provided on the outside of the pneumatic valve body (1), a thread is provided on the surface of the extension tube (2), the outer side of the extension tube (2) is threadedly connected to a screwing device (8), a fixing plate (11) is welded on the outside of the screwing device (8), a resistance block (6) is welded on the inside of the fixing plate (11), and a flange (9) is provided on the inside of the resistance block (6).

2. The small pneumatic valve according to claim 1, characterized in that: A bidirectional sealing mechanism (12) is provided on the outer side of the pneumatic valve body (1), a sealing ring (10) is installed on the outer side of the pneumatic valve body (1), a flange (9) is provided on the outer side of the sealing ring (10), an extension pipe (2) is welded on the inner side of the flange (9), a threaded hole is provided on the inner side of the flange (9), a bolt (7) is provided inside the threaded hole, and the bolt (7) passes through the sealing ring (10) and is threadedly connected to the pneumatic valve body (1).

3. The small pneumatic valve according to claim 1, characterized in that: The surface of the screwing device (8) is welded with a gripping rod (5), and the gripping rod (5) is symmetrically distributed.

4. The small pneumatic valve according to claim 1, characterized in that: A pump tube (13) is welded to the surface of the pneumatic valve body (1), and a pump body (4) is installed on the top of the pump tube (13).

5. The small pneumatic valve according to claim 4, characterized in that: An air inlet is provided on the outer side of the pump body (4), and the air inlet is symmetrically distributed.

6. The small pneumatic valve according to claim 1, characterized in that: The other end of the extension tube (2) is provided with a secondary tube (3), a flange (9) is welded on the surface of the secondary tube (3), a threaded hole is provided on the inner side of the flange (9), and a bolt (7) is provided inside the threaded hole.

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