Ball valve with filtering function

Abstract

The utility model discloses a ball valve with filtering function, including valve body, and the valve body inner chamber is equipped with valve ball and sealing washer, and the valve body top drilling and hole are equipped with valve knob, the arc shaped recess for cooperation valve knob is provided with the valve ball top, and the screw thread for connecting filter screen is provided with the valve ball bore, relate to ball valve technical field for air conditioner and refrigeration equipment, have excellent outer sealing performance, simple structure is easy to realize, and the machining precision requirement is not high, only need to reach the sealing structure and brazing requirement of conventional, can guarantee the sealing performance requirement of ball valve whole, simultaneously, the filter screen is installed through the screw thread connection in the valve ball, need not increase the installation filter, can realize the filtering function to fluid, greatly reduce the manufacturing cost, and, the valve knob positioning top appearance is square, and is equipped with the '' character recess, can use spanner or screwdriver to open and close ball valve, convenient use installation.

Description

Technical Field

[0001] This utility model belongs to the technical field of ball valves for air conditioning and refrigeration equipment, specifically a ball valve with a filtering function. Background Technology

[0002] A ball valve is a valve in which the opening and closing element (valve ball) is driven by a knob and rotates around the valve's axis. Ball valves can be used for fluid regulation and control, with straight-through ball valves being the most common type on the market, primarily used for opening and closing functions and flow adjustment. Currently, there are brass ball valves and stainless steel ball valves. Brass ball valves have better sealing performance, are easy to process and install, and are commonly used for gas and liquid media. Stainless steel ball valves have better corrosion resistance and higher strength, making them suitable for media with slight corrosiveness. Conventional ball valves on the market only have opening and closing functions and flow adjustment functions; they cannot filter the fluid, often requiring a separate filter in the system, which undoubtedly increases the product's manufacturing cost. Utility Model Content

[0003] The purpose of this invention is to provide a ball valve with a filtering function to solve the problems mentioned in the background art.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A ball valve with a filtering function includes a valve body, in which a valve ball and a sealing gasket are provided in the inner cavity of the valve body. A hole is drilled in the top of the valve body and a valve knob is provided in the hole. An arc-shaped groove is provided on the top of the valve ball for cooperating with the valve knob, and a thread is provided in the inner hole of the valve ball for connecting a filter screen.

[0006] Preferably, the valve knob has two grooves on its outer side for installing O-rings, the top of the valve knob has a square structure, and a groove is opened at the diagonal of the square. The outer wall of the valve knob has small holes for installing positioning pins, and the bottom of the valve knob has a flat part for cooperating with the valve ball.

[0007] Preferably, the left end of the valve body is provided with a through-hole for connecting a No. 1 copper pipe, and the right end of the valve body is provided with a thread for connecting a valve cover.

[0008] Preferably, a sealing gasket installation position is provided inside the valve cover, and a through-hole is provided at the right end of the valve cover for connecting the No. 2 copper pipe.

[0009] Preferably, the first copper pipe is fixed to the valve body and the second copper pipe is fixed to the valve cover by brazing. The openings of the first and second copper pipes are flared to facilitate brazing of external copper pipes.

[0010] Preferably, the left end of the valve cover is threaded to the valve body and fixed by MIG welding or TIG welding.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] This invention features excellent external sealing performance, a simple and easy-to-implement structure, and low requirements for machining precision. It only requires meeting conventional sealing structures and brazing requirements to ensure the overall sealing performance of the ball valve. Furthermore, a filter screen is installed inside the valve ball via a threaded connection, eliminating the need for an additional filter and achieving fluid filtration, thus significantly reducing manufacturing costs. Moreover, the valve knob's top is square in shape and features a "I"-shaped groove, allowing the ball valve to be opened and closed easily with a wrench or screwdriver, facilitating use and installation. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is the left view of the present invention;

[0015] Figure 3 This is a top view of the present invention;

[0016] In the diagram: 1. Valve body, 2. Filter screen, 3. Valve ball, 4. Valve cover, 5. No. 1 copper pipe, 6. Valve knob, 7. Positioning pin, 8. O-ring, 9. No. 2 copper pipe. Detailed Implementation

[0017] The specific embodiments of this utility model are described in detail below.

[0018] The "range" disclosed in this utility model is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a particular range. Ranges defined in this way can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 10–50 is listed for a specific parameter, it is also expected that ranges of 10–40 and 20–50 are also included. Furthermore, if the minimum range values ​​are listed as 1 and 2, and the maximum range values ​​are listed as 3, 4, and 5, then the following ranges are all expected: 1–3, 1–4, 1–5, 2–3, 2–4, and 2–5. In this application, unless otherwise stated, the numerical range "a–b" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0–5" means that all real numbers between "0–5" have been listed herein; "0–5" is merely a shortened representation of these numerical combinations.

[0019] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0020] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0021] Unless otherwise specified, all steps in this application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order. For example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0022] Unless otherwise specified, the terms "comprising" and "including" as used in this application can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.

[0023] Unless otherwise specified, the reaction will proceed under normal temperature and pressure conditions.

[0024] Unless otherwise specified, all parts or percentages are by weight or by weight percentage.

[0025] In this invention, all the substances used are known substances that can be purchased or synthesized by known methods.

[0026] In this invention, all the devices or equipment used are conventional devices or equipment known in the art and are readily available.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0028] Example:

[0029] A ball valve with filtering function, such as Figure 1-3 As shown, the valve body includes a valve body 1, with a valve ball 3 and a sealing gasket inside the valve body 1. A hole is drilled in the top of the valve body 1 and a valve knob 6 is provided inside the hole. The top of the valve ball 3 is provided with an arc-shaped groove to cooperate with the valve knob 6, and the inner hole of the valve ball 3 is provided with threads to connect the filter screen 2.

[0030] In one possible implementation, the valve knob 6 has two grooves on its outer side for installing O-rings 8, the top of the valve knob 6 has a square structure, and a groove is opened at the diagonal of the square. The outer wall of the valve knob 6 has small holes for installing positioning pins 7, and the bottom of the valve knob 6 has a flat part for cooperating with the valve ball 3.

[0031] In one possible implementation, the left end of the valve body 1 is provided with a through-hole for connecting the No. 1 copper pipe 5, and the right end of the valve body 1 is provided with a thread for connecting the valve cover 4.

[0032] In one possible implementation, a sealing gasket mounting position is provided inside the valve cover 4, and a through-pipe hole is provided at the right end of the valve cover 4 for connecting the No. 2 copper pipe 9.

[0033] In one possible implementation, the first copper pipe 5 is fixed to the valve body 1, and the second copper pipe 9 is fixed to the valve cover 4 by brazing. The openings of the first copper pipe 5 and the second copper pipe 9 are both flared to facilitate the brazing of the copper pipes connected to the market.

[0034] In one possible implementation, the left end of the valve cover 4 is threaded to the valve body 1 and fixed by MIG welding or TIG welding.

[0035] In one possible implementation, such as Figure 1-3 As shown, a ball valve with a filtering function includes: 1. Valve body; 2. Filter screen; 3. Valve ball; 4. Valve cover; 5. No. 1 copper tube; 6. Valve knob; 7. Positioning pin; 8. O-ring; and 9. No. 2 copper tube. The ball valve has a No. 1 copper tube on the right end and a No. 2 copper tube on the left end. Both copper tubes are connected by brazing, which results in a lower heating temperature, a smooth and flat joint, minimal changes in microstructure and mechanical properties, minimal deformation, and precise workpiece dimensions. The valve body and valve cover are connected by threads for easy assembly, and then MIG or TIG welding is used to ensure excellent external sealing performance. The ends of the two copper tubes are flared to facilitate brazing of the connecting copper tubes at the market end.

[0036] In one possible implementation, the valve ball 3 is threaded to facilitate the installation of the filter screen 2. Using a wrench or screwdriver, the valve knob can be rotated 60°–90°, causing the valve ball 3 to rotate around its axis, thus enabling the ball valve 3 to open and close, and adjust the flow rate. When the ball valve 3 is in the open flow state, the filter screen 2 inside the valve ball 3 filters the fluid, preventing impurities and other foreign objects in the fluid from entering the capillary tube and clogging it, thereby affecting the cooling and heating performance of the entire system. This achieves both the filtering function of a filter and the opening / closing and flow rate adjustment functions of a conventional ball valve.

[0037] In one possible implementation, the ball valve features a rational structural design that solves the problem of conventional ball valves being unable to perform fluid filtration, while the copper pipes at both ends facilitate easy connection and installation. Through this structural design, the ball valve can achieve additional filtration performance; its simple and practical structure allows for its widespread application in ball valve design.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ball valve with a filtering function, characterized in that: The valve body (1) includes a valve ball (3) and a sealing gasket in its inner cavity. The valve body (1) has a hole drilled in the top and a valve knob (6) is provided in the hole. The valve ball (3) has an arc-shaped groove on its top for matching the valve knob (6), and the valve ball (3) has a thread in its inner hole for connecting the filter screen (2). The valve knob (6) has two grooves on the outside for installing O-rings (8). The top of the valve knob (6) has a square structure, and a groove is opened at the diagonal of the square. The outer wall of the valve knob (6) has small holes for installing positioning pins (7). The bottom of the valve knob (6) has a flat part for cooperating with the driving valve ball (3). The valve body (1) has a through hole on the left end for connecting the No. 1 copper pipe (5), and the valve body (1) has a thread on the right end for connecting the valve cover (4). The valve cover (4) has a sealing gasket installation position inside, and the valve cover (4) has a through hole on the right end for connecting the No. 2 copper pipe (9). The first copper pipe (5) is fixed to the valve body (1) and the second copper pipe (9) is fixed to the valve cover (4) by brazing. The openings of the first copper pipe (5) and the second copper pipe (9) are flared to facilitate the brazing of external copper pipes.

2. A ball valve with filtering function as described in claim 1, characterized in that: The valve cover (4) is threaded to the valve body (1) at the left end and fixed by MIG welding or TIG welding.

Images