Special ball valve

Abstract

The invention relates to a special ball valve which comprises a square base, an input channel and at least one output channel communicated with the side of the input channel are arranged in the base, one end of the input channel is provided with an inlet, the other end of the input channel is sealed, one end of the output channel is communicated with the input channel, and the other end of the output channel is provided with an outlet. The at least one ball control mechanism is installed on the base and comprises a driving assembly installed on the base, a ball located in the output channel and two valve seats, the top of the ball is connected with the driving assembly, and the two valve seats support the bottom and the top of the ball respectively and abut against the inner wall of the output channel; and the two valve seats and the ball body form a sealing pair. And the ball body can rotate in the output channel under the driving of the driving assembly, so that the communication condition of the input channel and the output channel is changed. The special ball valve is convenient to install, stable in medium flow velocity and very practical.

Description

Technical Field

[0001] The present invention relates to the technical field of ball valves, in particular to a special ball valve. Background Art

[0002] Ball valves are widely used in various industries due to their small size and simple structure. However, most small ball valves on the market today are made of copper. However, copper ball valves have some defects, especially those that need to be installed on some machinery. They can only be connected via external pipes and cannot be integrated into the machinery. First, they affect the appearance and space occupied by the machinery, making installation inconvenient. Second, the more connections there are via external pipes, the greater the probability of leakage, affecting the performance of the mechanical product. Third, when multiple ball valves are required, additional diverters must be installed, which squeezes the installation space for other parts. As a pipe fitting, the diverter requires a set of fixing devices. This is fine for piping systems, but once used on mechanical products, it becomes cumbersome and expensive. Summary of the Invention

[0003] Based on this, it is necessary to provide a characteristic ball valve with easy installation and stable medium flow rate to address the problems existing in the existing ball valve.

[0004] A special ball valve comprises: a square base, an input channel and at least one output channel connected to the side of the input channel provided inside the base, one end of the input channel having an inlet and the other end sealed, one end of the output channel connected to the input channel and the other end having an outlet; at least one ball control mechanism mounted on the base, the ball control mechanism comprising a drive assembly mounted on the base, a ball located in the output channel and two valve seats, the top of the ball being connected to the drive assembly, the two valve seats respectively supporting the bottom and top of the ball and abutting against the inner wall of the output channel, the two valve seats forming a sealing pair with the ball; the ball can rotate in the output channel under the drive of the drive assembly, thereby changing the connection between the input channel and the output channel.

[0005] The aforementioned ball valve features a square base with no protrusions or depressions, a regular shape, and a relatively small footprint. The base provides a stable support surface during installation, making installation easy. Because the output channel is connected to the side of the input channel, the flow of the medium can be redirected, entering from the side and exiting from the end. This avoids issues such as unstable flow rates and inconsistent flow caused by direct impact of the medium on the outlet, resulting in excellent operational stability.

[0006] In one embodiment, the sphere is provided with a transverse channel.

[0007] In one embodiment, the sphere is a stainless steel sphere.

[0008] In one embodiment, the valve seat is a polytetrafluoroethylene valve seat.

[0009] In one embodiment, the drive assembly includes a drive support seat connected to the outer wall of the base, a driver and a valve stem installed on the drive support seat and connected to each other, and one end of the valve stem extends into the base and is connected to the ball.

[0010] In one embodiment, the drive assembly further includes a drive rod connected to the driver, and the drive rod is connected to the valve stem.

[0011] In one embodiment, the drive assembly further includes a sealing ring sleeved on the valve stem.

[0012] In one embodiment, the drive assembly further includes a sealing gasket sleeved on the valve stem and abutting against an inner wall of the output channel.

[0013] In one embodiment, the inlet and outlet are both flat ports.

[0014] In one embodiment, a first connecting thread is provided on the inner wall of the input pipe close to the inlet, and a second connecting thread is provided on the inner wall of the output pipe close to the outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a special ball valve according to a first embodiment of the present invention;

[0016] Figure 2 for Figure 1 A cross-sectional view of the special ball valve shown;

[0017] Figure 3 It is a cross-sectional view of a special ball valve according to a second embodiment of the present invention;

[0018] Figure 4 for Figure 3 A partial cross-sectional view of the special ball valve shown;

[0019] Figure 5 Schematic diagram of a special ball valve according to a third embodiment of the present invention;

[0020] Figure 6 Schematic diagram of a special ball valve according to a fourth embodiment of the present invention;

[0021] Figure 7 for Figure 6 The diagram below shows the medium flow principle of the special ball valve. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element. In addition, the term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terms used in the specification of the present invention herein are for the purpose of describing specific embodiments only. For example, “inner,” “outer,” “left,” “right,” and similar expressions are for illustrative purposes only and are not intended to limit the present invention.

[0025] Please refer to Figure 1 and Figure 7 , is a schematic diagram of a special ball valve 100 according to the present invention. This special ball valve 100 includes a square base 20, internally provided with an input channel 21 and at least one output channel 22 laterally connected to the input channel 21. The input channel 21 has an inlet at one end and is sealed at the other. The output channel 22 communicates with the input channel 21 at one end and has an outlet at the other end. At least one ball control mechanism 30 is mounted on the base 20, corresponding one-to-one with each output channel 22. The ball control mechanism 30 includes a drive assembly 40 mounted on the base 20, a ball 50 positioned within the output channel 21, and two valve seats 60. The top of the ball 50 is connected to the drive assembly 40. The two valve seats 60 support the bottom and top of the ball 50, respectively, and abut against the inner wall of the output channel 22, forming a sealing pair with the ball 50. The sphere 50 can rotate in the output channel 22 under the drive of the drive assembly 40 , thereby changing the communication between the input channel 21 and the output channel 22 .

[0026] Please refer to Figure 1 and Figure 2, which illustrates the special ball valve 100 described in the first embodiment of the present invention. In this embodiment, the base 20 is made of stainless steel, aluminum alloy, or carbon steel. This special ball valve 100 is rectangular, flat, and has a regular shape without protrusions or depressions, making it very easy to install. It is well-suited for use as a mechanical component in various locations. Compared to ball valves with protrusions and depressions, it is also much simpler to manufacture. In this embodiment, the valve body 20 is integrally molded, which can withstand high pressures while reducing weight and material costs.

[0027] In this embodiment, the outlets of all the output channels 22 are located on the same side of the base 20. In other feasible embodiments, the outlets of all the channels 22 can also be located on opposite sides of the base 20.

[0028] Furthermore, the sphere 50 is provided with a transverse channel 51. When the sphere 50 is driven by the drive assembly 40 to rotate until the channel 51 is connected to the output channel 22, the output channel 22 is connected to the input channel 21, and the medium in the input channel 21 can flow out of the output channel 22. When the sphere 50 is driven by the drive assembly 40 to rotate until the channel 51 is perpendicular to the output channel 22, the output channel 22 is cut off, and the medium in the input channel 21 cannot flow out through the output channel 22. To increase the service life of the sphere 50, the sphere 50 is made of stainless steel.

[0029] Furthermore, the valve seat 60 is made of polytetrafluoroethylene (PTFE), which has strong chemical stability and corrosion resistance, and can ensure the service life of the valve seat 60. In addition, the valve seat 60 made of PTFE also has a low friction coefficient and self-lubricating properties, and can achieve smooth movement between the ball 50 and the valve seat 60 without additional lubrication.

[0030] Furthermore, the drive assembly 40 includes a drive support 41 connected to the outer wall of the base 20, a driver 42 mounted on the drive support 41 and connected to each other, and a valve stem 43. One end of the valve stem 43 extends into the base 20 and connects to the ball 50. In this embodiment, the driver 42 can be a stepper motor capable of intelligent control. In other embodiments, the driver 42 can be a hydraulic motor, a brushless motor, a pneumatic motor, etc., without limitation.

[0031] The drive assembly further includes a drive rod 44 connected to the driver 42, which is in turn connected to the valve stem 43. The drive rod 44 and valve stem 43 can be connected in a coaxial or non-coaxial manner. In this embodiment, the non-coaxial connection is adopted, which facilitates drive rotation and increases the transmission ratio. In the non-coaxial connection mode, a drive gear 45 is provided on the end of the drive rod 44 away from the driver 42, and a sector-shaped toothed disc 46 is provided on the end of the valve stem 43 away from the ball 50, which meshes with the drive gear 45.

[0032] Furthermore, the drive assembly 40 includes a sealing ring 47, which is an O-ring, mounted on the valve stem 43. This sealing ring 47 enhances overall sealing and prevents leakage of the medium passing through the output channel 22. To further enhance the sealing effect, the drive assembly 40 also includes a sealing gasket 48, which is mounted on the valve stem 43 and abuts the inner wall of the output channel 22. The sealing gasket 48 is located below the sealing ring 47. In this embodiment, the sealing ring 47 is mounted on a ring sleeve 49, which is mounted on the valve stem 43. This allows the valve stem 43 to rotate smoothly with minimal friction.

[0033] Furthermore, both the inlet and outlet are flat, eliminating the need for rotating threaded joints during installation. By clamping the ball valve and the device to be connected to the ball valve with a sealing gasket, and then clamping the ball valve and device with a clamping device, the ball valve and device can be tightly connected, thus achieving a tight connection between the ball valve and the device, making assembly and disassembly very convenient. In other embodiments, the inner wall of the input channel 21 near the inlet can also be provided with internal threads, and the inner wall of the output channel 22 near the outlet can also be provided with internal threads, thereby enabling pipe thread connections, providing a variety of connection methods and flexible installation.

[0034] In other feasible embodiments, on the basis that the outlets of all output channels 22 are located on the same side of the base 20, a magnet plate (not shown in the figure) can be installed on the side of the base 20 facing away from the outlet of the output channel 22. The magnet plate can be adsorbed on any metal surface (such as a steel bracket, equipment housing) without the need for pre-buried fixing structure, thereby expanding the installation scenarios of the ball valve (such as mobile equipment or temporary piping systems). In addition, the magnetic fixation can also resist vibration interference caused by the flow of pipeline media. Since the side of the base 20 facing away from the outlet of the output channel 22 is a flat surface, combined with the magnet plate, the uniformity of the installation adsorption force can be improved, avoiding the risk of falling off due to local stress concentration.

[0035] Please refer to the figure Figure 3 and Figure 4, which is a special ball valve according to the second embodiment of the present invention. The special ball valve according to this embodiment differs from that of the first embodiment in that: further, a first limit switch 35 and a second limit switch 37 are provided on the drive assembly 41, and the first limit switch 35 and the second limit switch 37 are mounted on a mounting plate 411 provided in the drive support seat 41, and are both located on the same side of the mounting plate 411; a connecting rod 36 is provided on the valve stem 43; an arc-shaped hole 142 is provided on the mounting plate 411 corresponding to the connecting rod 36, and both ends of the arc-shaped hole 142 extend to the first limit switch 35 and the second limit switch 37 respectively, and an end of the connecting rod 36 away from the valve stem 43 passes through the arc-shaped hole 142 and extends to a side of the mounting plate 411 close to the first limit switch 35 and the second limit switch 37. When the driving assembly 41 drives the valve stem 43 to rotate, the connecting rod 36 moves with the valve stem 43. The connecting rod 36 rotates counterclockwise or clockwise along the arc hole to touch the first limit switch 35 or the second limit switch 37, sending a signal, thereby prompting the driver 42 to stop and avoid excessive rotation. At the same time, it can also detect whether the valve stem 43 has rotated into place.

[0036] Please refer to Figure 5 , which is a special ball valve 100 according to the third embodiment of the present invention, the number of the output channel 22 and the number of the ball control mechanism 30 of the special ball valve 100 are both two, so that a one-inlet and two-outlet mode can be realized.

[0037] Please refer to Figure 6 and Figure 7 , is a special ball valve 100 of the third embodiment of the present invention, the number of the output channel 22 and the ball control mechanism 30 of the special ball valve 100 are both three, so that a one-inlet and three-outlet mode can be realized. Figure 7 When outlet A is closed, the medium can flow through outlets B and C. When outlet C is closed, the medium can flow through outlets A and B. This is the principle by which this special ball valve 100 changes the flow direction of the medium. In this embodiment, the base 20 has a rectangular shape, and the various structures are integrated into a single unit, eliminating the need for intermediate connections, reducing intermediate interfaces and lowering the probability of leakage. The rectangular shape allows for both threaded pipe connections and clamping, eliminating the need for piping and joints. It is easy to install and use, and has a wide range of applications.

[0038] The base 20 of the special ball valve 100 is rectangular in shape and can be configured with one inlet and one outlet, one inlet and two outlets, or one inlet and three outlets, allowing for parallel operation according to different mechanical requirements. This special ball valve 100 does not require a flow divider when used in parallel. The parallel special ball valve 100 is a single unit, integrating a flow divider and multiple shut-off spheres 50. Furthermore, it features an optimized internal flow channel arrangement.

[0039] The aforementioned characteristic ball valve 100 occupies a relatively small space due to the square, regular shape of the base 20, which is free of protrusions or depressions. The base 20 provides a stable support surface during installation, making installation easy. Since the output channel 22 is connected to the side of the input channel 21, the medium flow can be redirected to enter from the end and exit from the side. This avoids the problems of unstable flow rate and inconsistent flow caused by the medium directly impacting the outlet, resulting in excellent operational stability.

[0040] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A special ball valve, characterized in that: include: A square-shaped base, wherein an input channel and at least one output channel connected to the side of the input channel are provided inside the base, wherein one end of the input channel has an inlet and the other end is sealed, and one end of the output channel is connected to the input channel and the other end has an outlet; At least one ball control mechanism is mounted on the base, and the ball control mechanism includes a drive assembly mounted on the base, a ball located in the output channel, and two valve seats. The top of the ball is connected to the drive assembly, and the two valve seats respectively support the bottom and top of the ball and abut against the inner wall of the output channel. The two valve seats and the ball form a sealing pair; the ball can rotate in the output channel under the drive of the drive assembly, thereby changing the connection between the input channel and the output channel.

2. The special ball valve according to claim 1, characterized in that: The sphere is provided with a transversely penetrating channel.

3. The special ball valve according to claim 1, characterized in that: The sphere is a stainless steel sphere.

4. The special ball valve according to claim 1, characterized in that: The valve seat is a polytetrafluoroethylene valve seat.

5. The special ball valve according to claim 1, characterized in that: The driving assembly includes a driving support seat connected to the outer wall of the base, a driver and a valve stem installed on the driving support seat and connected to each other, and one end of the valve stem extends into the base and is connected to the ball.

6. The special ball valve according to claim 5, characterized in that: The drive assembly further includes a drive rod connected to the driver, and the drive rod is connected to the valve stem.

7. The special ball valve according to claim 5, characterized in that: The driving assembly further comprises a sealing ring sleeved on the valve stem.

8. The special ball valve according to claim 5, characterized in that: The drive assembly further includes a sealing gasket which is sleeved on the valve stem and abuts against the inner wall of the output channel.

9. The special ball valve according to claim 1, characterized in that: The inlet and outlet are both flat ports.

10. The special ball valve according to claim 1, characterized in that: A first connecting thread is provided on the inner wall of the input pipe close to the inlet, and a second connecting thread is provided on the inner wall of the output pipe close to the outlet.

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