A multi-channel stop valve with adjustable switching

Abstract

The present invention discloses an adjustable and switchable multi-channel stop valve, comprising a valve body and a valve cover mounted on the valve body; the valve is characterized in that it also comprises a plurality of channels arranged on the valve body, a valve core movably mounted in the channels, a valve stem movably mounted on the valve cover and having one end in the valve body and the other end extending out of the valve cover, a driving disk mounted on the valve stem and rotating synchronously with the valve stem, a connecting rod movably connected to the driving disk and the valve core so that when the valve stem drives the driving disk to rotate, the driving disk can synchronously drive the plurality of valve cores to move, thereby realizing multi-channel synchronous opening and closing adjustment, and a driver mounted on the valve cover and connected to one end of the valve stem for driving the valve stem to rotate. Through the arrangement of the present invention, when in use, simultaneous opening and closing adjustment of multiple channels can be realized through a single driver, and opening and closing adjustment of single, dual, and multiple channels can also be realized according to actual use requirements, and the valve has a wide range of applicability.

Description

Technical Field

[0001] The invention relates to a stop valve, in particular to an adjustable and switchable multi-channel stop valve. Background Art

[0002] The shut-off valve in the prior art is usually a two-way or three-way valve. A valve core is set inside the valve to block the inlet channel. When the valve is opened, the valve stem drives the valve core to open the shut-off valve, and the medium flows out from the two outlet channels. However, when in use, the two outlet channels can only be opened or closed at the same time. In actual use, it is impossible to switch the outlet channel according to demand. If a single outlet channel is to be achieved, an additional shut-off valve can only be installed at the outlet end of the shut-off valve. The channel switching is achieved by opening and closing the additional connected shut-off valve. However, this method requires the installation of multiple shut-off valves and multiple pipes on the pipeline system to achieve multi-channel switching. However, the overall pipeline system is relatively cumbersome and has a large layout, which takes up a lot of space and is costly. In addition, the installation of multiple pipes and multiple shut-off valves leads to an increase in connection nodes, which increases the probability of leakage. To this end, a multi-channel shut-off valve with adjustable switching is proposed. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems and to provide an adjustable and switchable multi-channel stop valve.

[0004] In order to achieve the above-mentioned objectives, the present invention provides the following technical solution: an adjustable and switchable multi-channel stop valve, comprising a valve body and a valve cover installed on the valve body; the characteristic is that it also includes a plurality of channels arranged on the valve body, a valve core movably installed in the channel, a valve stem movably installed on the valve cover with one end in the valve body and the other end passing through the valve cover, a driving disk installed on the valve stem and rotating synchronously with the valve stem, a connecting rod movably connected to the driving disk and the valve core so that when the valve stem drives the driving disk to rotate, the driving disk can synchronously drive the plurality of valve cores to move to realize multi-channel synchronous opening and closing adjustment, and a driver installed on the valve cover and connected to one end of the valve stem for driving the valve stem to rotate.

[0005] Further preferably, it also includes an adjustment mechanism arranged on the valve body, which can select one or more of several channels according to actual needs to achieve synchronous opening and closing adjustment. The adjustment mechanism includes a support seat installed in the valve body, and one end of the valve stem is movably connected to the support seat.

[0006] Further preferably, the adjustment mechanism also includes a connecting pin for movably connecting the driving disk and the connecting rod, and the support seat is provided with an annular groove that is adapted to the connecting pin and guides the connecting pin when it moves with the driving disk; an adjusting rod is movably installed on the support seat, which supports the connecting pin and is used to adjust the position of the connecting pin to connect or disconnect the connecting rod from the driving disk to realize the opening and closing adjustment of the channel corresponding to the connecting rod and the connecting pin.

[0007] Further preferably, the driving disk is provided with a pin hole adapted to the connecting pin; the support seat is provided with a temporary storage hole for temporarily storing the connecting pin and connected to the annular groove; the support seat is also provided with an adjustment hole connected to the temporary storage hole, and a sealing filler and a sealing member for sealing are installed between the adjusting rod and the adjusting hole.

[0008] More preferably, it further includes a guide surface provided at the bottom of the pin hole and the upper part of the temporary storage hole to guide the insertion of the connecting pin.

[0009] Further preferably, both ends of the connecting pin are configured to be ball-shaped.

[0010] More preferably, it further includes a power source connected to the adjusting rod to drive the adjusting rod to move.

[0011] Further preferably, the valve core is provided with a plurality of medium flow grooves.

[0012] Further preferably, the medium flow groove is arranged in a conical shape, and the cross-sectional area between the medium flow groove and the channel is changed during the movement of the valve core to adjust the size of the medium flow path.

[0013] The beneficial effects of the present invention are as follows: through the configuration of the present invention, simultaneous opening and closing adjustment of multiple channels can be achieved through one driver during use, and single-channel, dual-channel and multi-channel opening and closing adjustment can also be achieved according to actual use requirements, with wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of the present invention;

[0016] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the drive disk of the present invention;

[0017] Figure 4 It is a partial cross-sectional structural schematic diagram of the present invention;

[0018] Figure 5 It is a partial cross-sectional structural schematic diagram of the present invention;

[0019] Figure 6 It is a partial structural schematic diagram of the present invention.

[0020] Legend: 1. Valve body; 11. Channel; 2. Valve cover; 21. Sealing packing; 3. Valve core; 31. Medium flow groove; 4. Valve stem; 5. Drive plate; 51. Pin hole; 6. Driver; 7. Support seat; 71. Ring groove; 72. Temporary hole; 73. Adjustment hole; 74. Adjustment rod; 75. Seal; 76. Guide surface; 77. Power source; 8. Connecting pin; 9. Connecting rod. DETAILED DESCRIPTION

[0021] The following further describes the adjustable and switchable multi-channel stop valve according to the present invention with reference to the accompanying drawings.

[0022] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0023] In the present invention, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can refer to a fixed connection, a detachable connection, or an integral connection; it can also refer to a mechanical connection, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0024] See Figures 1-6 As shown in, an adjustable and switchable multi-channel stop valve comprises a valve body 1 and a valve cover 2 mounted on the valve body 1; it is characterized in that it also includes a plurality of channels 11 provided on the valve body 1, a valve core 3 movably mounted in the channel 11, a valve stem 4 movably mounted on the valve cover 2 with one end located in the valve body 1 and the other end passing through the valve cover 2, a driving disk 5 mounted on the valve stem 4 and rotating synchronously with the valve stem 4, a connecting rod 9 movably connected to the driving disk 5 and the valve core 3 so that when the valve stem 4 drives the driving disk 5 to rotate, the driving disk 5 can synchronously drive the plurality of valve cores 3 to move, thereby realizing multi-channel synchronous opening and closing adjustment; and a driver 6 mounted on the valve cover 2 and connected to one end of the valve stem 4 for driving the valve stem 4 to rotate;

[0025] Through the arrangement of the present invention, when in use, the opening and closing adjustment of multiple channels 11 can be realized simultaneously through one driver 6, and the opening and closing adjustment of a single channel 11, a dual channel 11, and multiple channels 11 can also be realized according to actual use requirements, and the applicability is wide;

[0026] In order to improve the sealing between the valve core 3 and the channel 11, a sealing ring is also installed on the valve core 3; a sealing packing 21 is installed between the valve stem 4 and the valve cover 2;

[0027] When in use, the valve stem 4 is driven to rotate by the driver 6, and the valve stem 4 drives the driving disk 5 fixedly connected to it to rotate accordingly. During the rotation, the driving disk 5 drives the connecting rod 9 movably connected to it to move. During the movement, the connecting rod 9 pulls or pushes the valve core 3 to move in the channel 11 to open, close or adjust the medium flow path. The driver 6 can be any one of a motor, a rotary cylinder, and a handwheel.

[0028] Further preferably, it also includes an adjustment mechanism provided on the valve body 1, which can select one or more of several channels according to actual needs to realize synchronous opening and closing adjustment. The adjustment mechanism includes a support seat 7 installed in the valve body 1, one end of the valve stem 4 is movably connected to the support seat 7, and a hole adapted to the valve stem 4 is provided on the support seat 7. One end of the valve stem 4 is inserted into the hole. The support seat 7 supports the valve stem 4 and also limits the valve stem 4 through the hole, so that the valve stem 4 is more stable and balanced during rotation, and will not deflect or deform easily.

[0029] The support seat 7 can be integrally cast with the valve body 1 or mounted on the valve body 1 by welding or fixed on the valve body 1 by flanges or bolts.

[0030] Further preferably, the adjustment mechanism further includes a connecting pin 8 for movably connecting the driving disk 5 and the connecting rod 9, the driving disk 5 is provided with a pin hole 51 adapted to the connecting pin 8, and the support seat 7 is provided with an annular groove 71 adapted to the connecting pin 8 and guiding the connecting pin 8 when it moves with the driving disk 5;

[0031] The connecting pin 8 is used to movably connect the driving disk 5 and the connecting rod 9. When one end of the connecting pin 8 is inserted into the pin hole 51 of the driving disk 5, the driving disk 5 and the connecting rod 9 are connected through the connecting pin 8. At this time, when the driving disk 5 rotates, the connecting rod 9 is driven to move, and the connecting rod 9 drives the valve core 3 movably connected to the other end thereof to move in the channel 11, so as to open, close and adjust the channel 11. When one end of the connecting pin 8 is not inserted into the pin hole 51 of the driving disk 5, the connecting rod 9 is not connected to the driving disk 5. During the rotation of the driving disk 5, the valve core 3 connected to the connecting rod 9 will not be driven to move, thereby not opening the channel 11. Therefore, the corresponding channel 11 can be rotated to open as needed during use.

[0032] The annular groove 71 serves to guide, limit and support the connecting pin 8 when the drive disc 5 rotates.

[0033] The support seat 7 is provided with a temporary storage hole 72 for temporarily storing the connecting pin 8 and communicating with the annular groove 71; through the setting of the temporary storage hole 72, when the channel 11 does not need to be opened, the lower end of the connecting pin 8 is moved downward into the temporary storage hole 72, so that the upper part is removed from the pin hole 51 of the driving disk 5. When the driving disk 5 rotates, the connecting rod 9 connected to the valve core 3 in the channel 11 will not be driven by the connecting pin 8 to move. At the same time, the setting of the temporary storage hole 72 limits the position of the connecting pin 8, avoiding its position deviation and causing the subsequent connection pin 8 to be unable to connect with the driving disk 5 The upper pin hole 51 is aligned, which results in the upper portion of the connecting pin 8 being unable to be inserted into the pin hole 51 of the driving disk 5, resulting in the valve core 3 in the channel 11 being unable to move and open the channel 11. At the same time, the position of the connecting pin 8 is limited by the temporary hole 72, thereby limiting the position of one end of the connecting rod 9. When the valve core 3 is subjected to pressure, the connecting pin 8 is limited by the temporary hole 72, and the connecting pin 8 limits the connecting rod 9. The connecting rod 9 supports the valve core 3, and when the valve core 3 receives pressure from the medium in the channel 11, it will not automatically move and open the channel 11.

[0034] The support seat 7 is also provided with an adjustment hole 73 connected to the temporary storage hole 72. An adjustment rod 74 is movably installed in the adjustment hole 73 to support the connecting pin 8 and to adjust the position of the connecting pin 8 so that the connecting rod 9 is connected or disconnected from the driving disk 5 to realize the opening and closing adjustment of the channel 11 corresponding to the connecting rod 9 and the connecting pin 8. A packing and a sealing member 75 are also installed between the adjusting rod 74 and the adjustment hole 73 to perform a sealing function. The setting of the sealing member 75 and the packing is used to enhance the sealing between the adjusting rod 74 and the adjustment hole 73 and improve the anti-leakage level. The adjusting hole 73 is provided for movably mounting the adjusting rod 74. When the adjusting rod 74 is driven, the adjusting rod 74 moves upward or downward along the adjusting hole 73. When the adjusting rod 74 moves upward, the connecting pin 8 moves upward. When the adjusting rod 74 moves downward, the connecting pin 8 is no longer supported and moves downward into the temporary storage hole 72 by its own gravity as the adjusting rod 74 moves downward. By changing the upper and lower positions of the adjusting rod 74 in the adjusting hole 73, the connecting pin 8 is connected or disconnected from the driving disk 5, and the switching of whether the channel 11 is used or not is realized.

[0035] It also includes a power source 77 connected to the adjustment rod 74 to drive the adjustment rod 74 to move;

[0036] The adjusting rod 74 and the adjusting hole 73 may be provided with matching threads, so that the adjusting rod 74 and the adjusting hole 73 are connected by threads. When the adjusting rod 74 is raised or lowered in the adjusting hole 73, it is only necessary to rotate the adjusting rod 74. The power source 77 may be any rotating power source such as a motor, a rotary cylinder, or a hand wheel that drives the adjusting rod to rotate.

[0037] The adjusting rod 74 and the adjusting hole 73 may also be connected by a polished rod. When the polished rod is slidably connected, the power source 77 may be any linear power source such as an electric push rod, a pneumatic cylinder or a hydraulic cylinder that drives the adjusting rod to move linearly.

[0038] At the same time, in order to ensure the up and down movement limit of the adjusting rod 74 during use, the up and down movement stroke of the connecting pin 8 is limited, and a travel switch for limiting the up and down movement stroke of the adjusting rod 74 can be installed on the outside of the valve body 1. The travel switch can be installed on the valve body 1, and the sensor that triggers the travel switch can be installed on the adjusting rod 74. When the travel switch is used for control, automatic control can be achieved, or a scale and pointer for displaying the up and down positions can be installed, the scale is installed on the valve body 1, and the pointer is installed on the adjusting rod 74. When the scale and pointer are used, it is suitable for manual adjustment control.

[0039] In one embodiment, it also includes a guide surface 76 arranged at the bottom of the pin hole 51 and the upper part of the temporary storage hole 72 to guide the insertion of the connecting pin 8; through the setting of the guide surface 76, it plays a guiding role when the upper part of the connecting pin 8 is inserted into the pin hole 51 and the lower part is inserted into the temporary storage hole 72, avoiding the problem of slight deviation causing the connecting pin 8 to be difficult to insert into the pin hole 51 or the temporary storage hole 72, thereby causing the normal operation to be unable to occur.

[0040] In one embodiment, both ends of the connecting pin 8 are configured to be ball-shaped. At the same time, by configuring both ends of the connecting pin 8 to be ball-shaped, the curved surface of the ball head guides the movement of the connecting pin 8, also to avoid interference caused by slight deviations.

[0041] In one embodiment, the valve core 3 is provided with a plurality of medium flow grooves 31. By providing the medium flow grooves 31 on the valve core 3, when the valve core 3 moves in the channel 11, the inner cavity of the valve body 1 and the channel 11 are connected through the medium flow grooves 31 to realize the opening of the flow path. Therefore, when opening the flow path, there is no need to move the entire valve core 3 out of the channel 11. The channel 11 can guide and limit the movement of the valve core 3, thereby preventing the valve core 3 from being completely moved out of the channel 11 and causing it to fall. At the same time, the stability of the valve core 3 movement is improved, thereby improving the stability of the entire valve during use.

[0042] In one embodiment, the medium flow groove 31 is set in a conical shape, so that the size of the medium flow path can be adjusted by changing the cross-sectional area between the medium flow groove 31 and the channel 11 during the movement of the valve core 3, thereby achieving the purpose of adjusting the medium flow path without moving the entire valve core 3 out of the channel 11.

[0043] When the present invention is in use: When the present invention is in use, one of the channels 11 or multiple channels 11 equipped with the valve core 3 or another channel 11 not equipped with the valve core 3 and directly connected to the valve cavity can be selected as the inlet channel 11;

[0044] When no additional inlet channel 11 for a direct-through valve core 3 is provided, when one of the channels 11 equipped with the valve core 3 is used as the inlet channel 11, the connecting pin 8 at the other end of the connecting rod 9 movably connected to the valve core 3 in the channel 11 is movably connected to the driving disk 5. When in use, the valve stem 4 is rotated by the driver 6, and the valve stem 4 drives the driving disk 5 to rotate. When the driving disk 5 rotates, the connecting pin 8 movably connected thereto is driven to move along the annular groove 71, and the connecting pin 8 drives the connecting rod 9 movably connected thereto to move. When the connecting rod 9 moves, the valve core 3 in the channel 11 is pulled to move. When the medium flow groove 31 is exposed during the movement of the valve core 3 in the channel 11, the channel 11 and the valve cavity are connected, allowing the medium to enter the valve cavity.

[0045] At the same time, during the rotation of the driving disk 5, the other connecting rods 9 movably connected to it through the connecting pin 8 are driven to move synchronously, and the other connecting rods 9 also synchronously drive the valve cores 3 movably connected thereto to move synchronously in the channel 11, thereby synchronously opening or closing or adjusting the size of the opened medium flow path;

[0046] When the synchronously opened and closed channels 11 are changed according to demand, the driver 6 first drives the valve stem 4 to reset, and the valve stem 4 drives the drive disk 5 to reset. When the drive disk 5 resets, it drives the connecting rods 9 and the valve core 3 to reset, closing all channels 11.

[0047] When the channel 11 to be opened and closed synchronously is reduced, the adjusting rod 74 corresponding to the channel 11 is controlled to act, and the adjusting rod 74 moves downward to the set position. In the process of the adjusting rod 74 moving downward to the set position, the connecting pin 8 supported by it drops down due to its own gravity as the adjusting rod 74 drops. In the process of the connecting pin 8 dropping down, the upper end of the connecting pin 8 disengages from the pin hole 51, and the connecting pin 8 moves downward to the temporary storage hole 72. At this time, the connecting rod 9 movably connected to the valve core 3 in the channel 11 is disconnected from the driving disk 5. At this time, when the valve stem 4 drives the driving disk 5 to rotate, the driving disk 5 will not drive the connecting rod 9 to move accordingly, and thus the channel 11 will not perform the synchronous opening and closing action at this time;

[0048] When it is necessary to increase the synchronous opening and closing action of the channel 11, the adjusting rod 74 corresponding to the channel 11 is controlled to act, and the adjusting rod 74 moves upward to the set position. In the process of moving the adjusting rod 74 upward to the set position, the connecting pin 8 is pushed upward. In the process of moving the connecting pin 8 upward, the upper end of the connecting pin 8 is inserted into the pin hole 51 of the driving disk 5, and the bottom of the connecting pin 8 moves out of the temporary storage hole 72 to the annular groove 71. At this time, the driving disk 5 and the connecting rod 9 are connected by the connecting pin 8. At this time, when the valve stem 4 rotates, the valve stem 4 drives the driving disk 5 to rotate. During the rotation, the driving disk 5 drives several connecting pins 8 movably connected thereto to move along the annular groove 71, and the connecting pin 8 drives the connecting rod 9 to act accordingly. During the action, the connecting rod 9 drives the valve core 3 movably connected thereto to move in the channel 11 to open or close the medium flow path or adjust the size of the flow path;

[0049] In actual use, at least two of the channels on the valve body can be used as medium inlet channels. Different medium inlet channels are used to connect pipelines for conveying different media. After different media enter the valve body cavity through the channels, the media can be mixed in the valve body and then output through other channels for outputting media. The valve can be opened and closed, and channels can be switched. At the same time, the media can be mixed and output in a centralized manner. At the same time, the media can also be reduced in pressure and buffered when entering the valve body through the medium flow path between the valve core and the channel.

[0050] In order to increase the service life of the entire valve, a wear-resistant coating can be provided on the surface of the valve core, valve stem, drive plate, connecting rod, connecting pin, valve body, and support seat to improve the overall wear resistance and extend the service life.

[0051] The protection scope of the present invention is not limited to the above embodiment and its variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment fall within the protection scope of the present invention.

Claims

1. An adjustable and switchable multi-channel stop valve, comprising a valve body and a valve cover mounted on the valve body; its characteristics are The valve body also includes a plurality of channels provided on the valve body, valve cores movably installed in the channels, a valve stem movably installed on the valve cover with one end in the valve body and the other end extending out of the valve cover, a driving disk installed on the valve stem and rotating synchronously with the valve stem, a connecting rod movably connected to the driving disk and the valve core so that when the valve stem drives the driving disk to rotate, the driving disk can synchronously drive the plurality of valve cores to move, thereby realizing synchronous opening and closing regulation of multiple channels, and a driver installed on the valve cover and connected to one end of the valve stem for driving the valve stem to rotate. The valve body also includes an adjusting mechanism for adjusting the opening and closing of one of the plurality of channels or for adjusting the opening and closing of a plurality of channels simultaneously. The adjusting mechanism includes a support seat installed in the valve body, and one end of the valve stem is movably connected to the support seat. The adjusting mechanism also includes a connecting pin for movably connecting the driving disk and the connecting rod. The support seat is provided with an annular groove that is adapted to the connecting pin and guides the connecting pin when it moves with the driving disk; an adjusting rod is movably installed on the support seat, which supports the connecting pin and is used to adjust the position of the connecting pin to connect or disconnect the connecting rod from the driving disk to realize the opening and closing adjustment of the channel corresponding to the connecting rod and the connecting pin.

2. The adjustable switchable multi-channel stop valve according to claim 1, characterized in that: The driving disk is provided with a pin hole adapted to the connecting pin; the support seat is provided with a temporary storage hole for temporarily storing the connecting pin and connected to the ring groove; the support seat is also provided with an adjustment hole connected to the temporary storage hole, and a sealing filler and a sealing member are installed between the adjusting rod and the adjusting hole for sealing.

3. The adjustable switchable multi-channel stop valve according to claim 2, characterized in that: It also includes a guide surface arranged at the bottom of the pin hole and the upper part of the temporary storage hole to guide the insertion of the connecting pin.

4. The adjustable switchable multi-channel stop valve according to claim 3, characterized in that: Both ends of the connecting pin are arranged in a ball head shape.

5. The adjustable switchable multi-channel stop valve according to claim 1, characterized in that: The utility model also includes a power source connected with the adjusting rod to drive the adjusting rod to move.

6. The adjustable switchable multi-channel stop valve according to claim 1, characterized in that: The valve core is provided with a plurality of medium flow grooves.

7. The adjustable switchable multi-channel stop valve according to claim 6, characterized in that: The medium flow groove is arranged in a conical shape, and the cross-sectional area between the medium flow groove and the channel is changed during the movement of the valve core to adjust the size of the medium flow path.

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