A novel multi-way ball valve assembly

Abstract

This invention relates to a novel multi-way ball valve assembly, specifically a novel multi-way ball valve assembly. This invention provides a novel multi-way ball valve assembly that offers flexible switching and centralized control, effectively reducing floor space and improving operational convenience and ergonomics. The invention includes a valve body, characterized by: multiple upper channels at the top of the valve body and multiple lower channels at the bottom of the valve body; an upper ball corresponding to each upper channel and a lower ball corresponding to each lower channel within the valve body; both the upper and lower balls have L-shaped channels; one end of the L-shaped channel of the upper ball corresponds to an upper channel; one end of the L-shaped channel of the lower ball corresponds to a lower channel; the other ends of the L-shaped channels of the upper and lower balls are opposite each other; an intermediate channel connecting the L-shaped channels of the upper and lower balls is provided within the valve body; and valve stems for the upper and lower balls are provided on the valve body.

Description

Technical Field

[0001] This utility model belongs to the field of valves, specifically relating to a novel multi-way ball valve assembly. Background Technology

[0002] In industrial production, scientific research, and other applications requiring fluid control, valve systems are key components for controlling the flow of media and switching its direction. As fluid circuit systems become increasingly larger and more complex, traditional valve combinations are gradually revealing some technical shortcomings.

[0003] First, valves in common loop systems are distributed relatively widely, making control complex, requiring a large area, and hindering centralized management and maintenance. Second, most existing integrated valve assemblies have small diameters, high internal flow resistance, and are bulky, limiting their application in applications requiring larger flow rates and higher efficiency. Traditional small-diameter instrument valve assemblies or single-channel valve assemblies are not only easily constrained by diameter and space requirements in practical use, but also have high processing and installation difficulties, and significantly affect fluid flow resistance.

[0004] In addition, multi-way ball valves have some common problems during application, such as uneven ball wear due to uneven force, loosening of parts and packing leakage after prolonged use, which can even affect the valve's sealing performance and service life. These problems can cause significant difficulties in centralized control, fluid switching, and long-term stable operation in industrial settings.

[0005] Therefore, there is an urgent need for a new type of valve assembly structure that can achieve flexible switching of multiple channels, small footprint, convenient operation and high reliability while ensuring flow capacity, so as to solve the shortcomings of the existing technology. Utility Model Content

[0006] This utility model addresses the aforementioned problems by providing a novel multi-way ball valve assembly that offers flexible switching and centralized control, effectively reducing floor space and enhancing operational convenience and human-machine interface efficiency.

[0007] This utility model adopts the following technical solution: It includes a valve body, characterized in that: the upper part of the valve body is provided with multiple upper channels, and the lower part of the valve body is provided with multiple lower channels; the valve body contains an upper ball corresponding to the upper channel and a lower ball corresponding to the lower channel; both the upper and lower balls contain L-shaped channels; one end of the L-shaped channel of the upper ball corresponds to the upper channel; one end of the L-shaped channel of the lower ball corresponds to the lower channel; the other ends of the L-shaped channels of the upper and lower balls are opposite to each other; the valve body contains an intermediate channel connecting the L-shaped channels of the upper and lower balls; and the valve body is provided with valve stems for the upper and lower balls.

[0008] As a preferred embodiment of this utility model, the valve stem of the upper ball is provided with a pointer corresponding to the direction of the L-shaped channel of the upper ball; the valve stem of the lower ball is provided with a pointer corresponding to the direction of the L-shaped channel of the lower ball.

[0009] As another preferred embodiment of this utility model, the valve body is provided with two valve chambers at the upper and lower ends, with a middle channel between the two valve chambers; the sides of the two valve chambers are respectively an upper channel and a lower channel; the upper ball and the lower ball are disposed in the two valve chambers; the upper ball and the lower ball are provided with extended interfaces that cooperate with the middle channel.

[0010] Furthermore, a matching copper sleeve is provided between the valve body and the extended interface, as well as between the valve cover and the valve stem; a bearing and a disc spring are provided between the end of the extended interface and the valve body.

[0011] Furthermore, the mating copper sleeve is provided with a groove.

[0012] Furthermore, a gap is provided between the mating copper sleeve and the valve cover or valve body.

[0013] Furthermore, both the upper and lower channels are equipped with connecting sleeves, one end of which mates with the upper or lower sphere; the other end of the connecting sleeve is equipped with a flange connector.

[0014] Furthermore, valve covers are provided at both the upper and lower ends of the valve body, and the valve stem passes through the valve cover and is connected to the upper ball or the lower ball.

[0015] Furthermore, a handle is provided on the valve stem.

[0016] The beneficial effects of this utility model are as follows: The two balls inside the valve body of this utility model adopt an L-shaped channel and are connected vertically. The flow channel can be switched by rotating the individual balls to achieve multiple channels. The valve assembly is machined as a whole, which reduces the number of valve assembly parts, reduces the processing difficulty, and improves the design reliability.

[0017] The circuit position is marked on the outside of both valve covers, which, together with the pointer, indicate the flow direction of the circuit. Both the valve cover and valve body are fitted with copper sleeves. The self-lubricating properties of copper reduce resistance when in contact with the valve stem and ball, minimizing wear on rotating parts. Simultaneously, increasing the length of the copper sleeves enhances the guiding effect on the ball, preventing the uneven wear problem commonly found in multi-way ball valves.

[0018] A gap is left at the bottom of the mounting area between the copper sleeve and the valve cover / body to facilitate the removal and installation of the copper sleeve during maintenance. A bearing is added between the ball and the valve body to reduce face-to-face contact and further reduce operating resistance. An elastic disc spring is added between the bearing and the valve body to ensure a tight fit between the packing, valve stem, ball, and bearing components, compensate for the gaps caused by wear between parts after long-term use, and effectively prevent external leakage caused by loose packing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the valve body.

[0021] Figure 3 yes Figure 2 Top view.

[0022] Figure 4 This is a schematic diagram of the valve cover.

[0023] Figure 5 yes Figure 4 Top view.

[0024] Figure 6 This is a schematic diagram of the structure of a sphere.

[0025] Figure 7 This is a schematic diagram of the upper part that fits the copper sleeve.

[0026] Figure 8 This is a schematic diagram of the lower part that fits the copper sleeve. Detailed Implementation

[0027] like Figure 1 As shown, this utility model includes a valve body 12, with multiple upper channels 108 on the upper part and multiple lower channels 110 on the lower part. An upper ball 6 corresponding to an upper channel 101 and a lower ball 6 corresponding to a lower channel 106 are disposed within the valve body 12. Both the upper and lower balls 6 have L-shaped channels 302. One end of the L-shaped channel 302 of the upper ball 6 corresponds to the upper channel 108; one end of the L-shaped channel 302 of the lower ball 6 corresponds to the lower channel 110; the other ends of the L-shaped channels 302 of the upper and lower balls 6 are opposite each other. An intermediate channel 109 connecting the L-shaped channels 302 of the upper and lower balls 6 is disposed within the valve body 12. A valve stem 3 for controlling the upper and lower balls 6 is disposed on the valve body 12. By combining the L-shaped channels 302 of the upper ball 6 and the lower ball 6 in different directions, flexible switching of multiple channels can be achieved, improving the flexibility and reliability of fluid distribution in the system and reducing the management inconvenience caused by scattered valve distribution.

[0028] The valve stem 3 of the upper ball 6 is equipped with a pointer 2 corresponding to the direction of the L-shaped channel 302 of the upper ball 6; the valve stem 3 of the lower ball 6 is also equipped with a pointer 2 corresponding to the direction of the L-shaped channel 302 of the lower ball 6. The correspondence between the pointer 2 and the direction of the channel 302, and the corresponding numbers 203 on the valve covers at both ends of the valve body, correspond to the upper channel 108 and the lower channel 110 of the valve body, respectively. By using the pointer 2 in conjunction with the valve cover numbers 203, the current flow channel status can be visually displayed, facilitating operator judgment of the flow direction and improving human-machine interface efficiency.

[0029] The valve body 12 has two valve chambers located at its upper and lower ends, with a central channel 109 between them. The upper channel 101 and the lower channel 106 are located on the sides of the two valve chambers. An upper ball 6 and a lower ball 6 are disposed within the two valve chambers. Extended interfaces 303 are provided on the upper ball 6 and the lower ball 6 to mate with the central channels 102 and 106. The dual-valve-chamber arrangement and the extended interfaces 303 enhance the guiding and stability of the ball 6 within the chambers, effectively preventing uneven wear and extending the valve's service life.

[0030] A matching copper sleeve 5 is provided between the valve body 102 and the ball 304, and between the valve cover 202 and the valve stem 3; a bearing 9 and a disc spring 10 are provided between the end of the extended interface 8 and the valve body 12. The combination structure of the copper sleeve, bearing 9 and disc spring 10 can reduce frictional resistance, compensate for the gap changes of the components caused by long-term use, prevent leakage caused by loosening or deformation of the packing, and ensure the long-term stable operation of the valve.

[0031] The mating copper sleeve 5 has a groove inside. By providing a groove inside the copper sleeve, the contact area between the parts is reduced, further reducing the frictional torque and alleviating the operating load.

[0032] The copper sleeve 5 and valve cover 4 are provided with a gap of 13. The copper sleeve 8 and valve body 12 are provided with a gap of 14. The designed gaps facilitate the disassembly and replacement of the copper sleeves, improving the convenience of later maintenance.

[0033] The upper channel 108 and lower channel 110 of the valve body are installed with the flange connector 11. One end of the flange connector 11 is matched with the upper ball 6 or the lower ball 6. The other end of the flange connector 11 is provided with a flange, which can realize the reliable connection between the valve body 12 and the external pipeline, improve the sealing performance, and facilitate installation and maintenance.

[0034] The valve body 12 is provided with valve covers 4 at both the upper and lower ends, and the valve stem 3 passes through the valve covers 4 and is connected to the upper ball 6 or the lower ball 6. The valve covers 4 ensure a reliable connection between the valve stem 3 and the ball 6, and also facilitate the inspection and maintenance of the internal structure.

[0035] A handle 1 is provided on the valve stem 3. The valve stem 3 is driven by the handle 1, which enables convenient manual operation, reduces operating torque, and improves the flexibility of use.

[0036] Example: Figures 2-8 As shown, the valve body has two internal cavities 101 and 107, a partition structure 104 in the middle of the valve body, an intermediate channel 109, grooves 102 and 106 for installing copper sleeves and bearings, grooves 103 and 105 for mounting and fixing the bottom disc spring 10, symmetrical flow channels 108 and 110 in the valve group, and flange pipe mounting surface 111.

[0037] The valve cover is equipped with a sealing packing groove 201, a valve cover boss 202, a protruding and elongated copper sleeve mounting groove 203, and a switch position indicator 204.

[0038] The valve stem mounting position of the ball is 301, the L-shaped channel is 302, the extended interface is 303, and the bottom end face of the ball valve is 304.

[0039] The upper part has a guide extension boss 401 for the copper sleeve and is provided with bolt fixing holes 402; the copper sleeve has multiple grooves 403 inside; the copper sleeve and valve cover have a mating length 404 that is less than the grooves of the valve cover.

[0040] The lower copper sleeve is bolted to the valve cover and fixed in place 501; the copper sleeve has a groove machined inside 502; the overall height of the copper sleeve 503 exceeds the inner surface of the valve body; the mating length between the copper sleeve and the valve body 504 is less than the groove in the valve body, leaving a gap.

[0041] The valve body has two internal chambers, 101 and 107, housing a ball, lower copper sleeve, bearing, and disc spring. An extended guide copper sleeve is installed inside the valve cover to prevent uneven wear and utilize the self-lubricating properties of copper to reduce resistance and minimize component wear. The depth of the valve body grooves 103 and 105 ensures that the bearing protrudes 1 / 3 to 1 / 2 of its height to prevent wear caused by the bearing's outer ring contacting the valve body during rotation. A partition structure 104 is designed in the middle of the valve body. Metal disc springs are installed in the bottom thrust bearing grooves 103 and 105 of the two chambers, with a thrust bearing installed between the disc spring and the ball. Copper sleeves are installed in the grooves 102 and 106 of the valve body, directly contacting the ball to prevent wear from direct contact between the ball and valve body, while also utilizing the self-lubricating properties of copper to reduce resistance and minimize component wear. The valve body has symmetrical flow channels 105 and 107, and the connecting flange has a mating surface 108.

[0042] The valve cover boss 202 is used to accommodate the sealing packing groove 201. A bevel is machined on the edge of the boss for marking the switch position indicator 204. The valve cover switch position indicators 204 on both sides of the valve assembly cooperate with the corresponding pointers to confirm the on / off direction inside the valve assembly. At the same time, the indicator number 204 is marked on the bevel of the valve cover boss, which can ensure that the number is not obstructed by the pointer while controlling the structural dimensions of the valve.

[0043] The L-shaped channel connects to the flange channel to achieve flow cut-off; the extended interface 303 cooperates with the inner cavity of the lower copper sleeve 8 to achieve guiding and fixing functions; the bottom end face 304 of the ball valve cooperates with the end face of the thrust bearing to achieve fixing and reduce resistance.

[0044] The fitting copper sleeves are divided into upper copper sleeve 5 (installed with the valve cover) and lower copper sleeve 8 (installed with the valve body). The upper copper sleeve 5 is installed in the groove of valve cover 203. After installation, a 3-5mm gap should be left between the upper copper sleeve and the bottom of the groove of valve cover 203 for easy disassembly and maintenance later. The lower copper sleeve 8 is installed in the grooves of valve body 102 and 106. A 3-5mm gap should be left between the bottom of the lower copper sleeve and the groove of valve body for easy disassembly and maintenance later. The inner side of the upper copper sleeve 5 is designed with a groove 403, and the inner side of the lower copper sleeve 8 is designed with a groove 502 to reduce the contact area between the copper sleeve and the valve stem and ball, and further reduce frictional resistance without affecting the guiding function.

[0045] A disc spring supports the lower end of the bearing and the valve body to compensate for the gaps caused by packing compression and loosening or parts wear after long-term use.

[0046] The structural diagram of the multi-way ball valve assembly shows the open state.

[0047] The valve is operated by turning the handwheels at both ends, which in turn rotates the valve stem via the handle. A pointer mounted on the valve stem points to the channel number on the valve cover. A ball, which mates with the valve stem, rotates to connect to different channels. Rotating the balls to different positions at both ends connects or disconnects the different channels.

[0048] The valve passage is sealed with an O-ring, and the connection between the valve stem and the valve cover is sealed with packing. The contact parts between the valve cover and the valve stem, and between the ball and the valve body are equipped with copper sleeves. The copper sleeves are larger than the inner surface of the valve cover and the valve body, which strengthens the guiding function and prevents the ball from wearing unevenly due to the multi-way structure. At the same time, the self-lubricating properties of copper can reduce the valve's operating resistance and reduce wear.

[0049] A bearing and a disc spring are installed between the ball and the valve body. The bearing can convert the surface friction between the ball and the valve body into sliding friction, further reducing the resistance to valve operation. The disc spring can compensate for the wear gaps of valve assembly parts, compensate for packing deformation, reduce parts wear, prevent packing leakage, and extend the service life of the valve assembly.

[0050] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. A novel multi-way ball valve assembly, comprising a valve body, characterized in that: The valve body has multiple upper channels at its upper part and multiple lower channels at its lower part. The valve body contains an upper ball corresponding to each upper channel and a lower ball corresponding to each lower channel. Both the upper and lower balls have L-shaped channels. One end of the L-shaped channel of the upper ball corresponds to the upper channel; one end of the L-shaped channel of the lower ball corresponds to the lower channel; the other ends of the L-shaped channels of the upper and lower balls are opposite each other. The valve body also contains an intermediate channel connecting the L-shaped channels of the upper and lower balls. A valve stem with both upper and lower balls is mounted on the valve body.

2. The novel multi-way ball valve assembly according to claim 1, characterized in that: The valve stem of the upper ball is provided with a pointer corresponding to the direction of the L-shaped channel of the upper ball; the valve stem of the lower ball is provided with a pointer corresponding to the direction of the L-shaped channel of the lower ball.

3. The novel multi-way ball valve assembly according to claim 1, characterized in that: The valve body has two valve chambers located at its upper and lower ends, with a central channel between them; the two valve chambers have an upper channel and a lower channel on their sides, respectively; the upper ball and the lower ball are located within the two valve chambers; the upper ball and the lower ball are provided with extended interfaces that cooperate with the central channel.

4. A novel multi-way ball valve assembly according to claim 3, characterized in that: A matching copper sleeve is provided between the valve body and the extended port, as well as between the valve cover and the valve stem; a bearing and a disc spring are provided between the end of the extended port and the valve body.

5. A novel multi-way ball valve assembly according to claim 4, characterized in that: The fitting copper sleeve has a groove inside.

6. A novel multi-way ball valve assembly according to claim 4, characterized in that: A gap is provided between the fitting copper sleeve and the valve cover or valve body.

7. A novel multi-way ball valve assembly according to claim 3, characterized in that: Both the upper and lower channels are equipped with connecting sleeves, one end of which mates with the upper or lower sphere; the other end of the connecting sleeve is equipped with a flange connector.

8. A novel multi-way ball valve assembly according to claim 3, characterized in that: The valve body is provided with valve covers at both the upper and lower ends, and the valve stem passes through the valve covers and is connected to the upper ball or the lower ball.

9. A novel multi-way ball valve assembly according to claim 8, characterized in that: A handle is provided on the valve stem.

Images