A flow control valve with a flow stopping function

Abstract

The present invention relates to a flow control valve. The present invention relates to a flow control valve with a flow stopping function. It includes a fixing device and a control device arranged on the top of the fixing device. The fixing device includes a fixing mechanism, and the fixing mechanism includes a valve housing. One end of the baffle plate is fixedly connected with an auxiliary block. When the present invention adjusts the height of the valve block to control the water flow, the guide plate can be synchronously rotated through the cooperation of the synchronous structure and the cooperation groove, so that the guide plate is at different angles when the valve block is at different heights. When it is necessary to close the valve hole, a reflux cavity can be formed at the bottom of the valve hole, which is convenient for the valve block to seal the valve hole and can also protect the valve block. When the water flow is controlled by adjusting the height of the valve block, the size of the reflux cavity on one side of the guide plate changes accordingly. At this time, the larger the water flow through the valve hole, the smaller the reflux cavity and the smaller the resistance to the water flow.

Description

Technical Field

[0001] The present invention relates to a flow control valve, and more specifically, to a flow control valve with a flow stopping function. Background Art

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, and adjust and control the parameters of the conveyed water flow. A common valve that can adjust the water flow rate is a globe valve, which can well control and adjust the water flow rate and has a good sealing effect. However, the globe valve has a large resistance to water flow during operation, wasting a large amount of the kinetic energy of the water flow itself. And when adjusting the water flow rate, since the position of the valve is controlled and locked by threads, the control stroke of the globe valve is long, which will waste the operator's time and water resources. Summary of the Invention

[0003] The purpose of the present invention is to provide a flow control valve with a flow stopping function to solve the problems raised in the above background art.

[0004] To achieve the above purpose, a flow control valve with a flow stopping function is provided, including a fixing device and a control device arranged on the top of the fixing device. The fixing device includes a fixing mechanism, and the fixing mechanism includes a valve housing. One end of the inner wall of the valve housing is fixedly connected with a baffle, and one end of the baffle is fixedly connected with an auxiliary block. A valve hole is formed between the auxiliary block and the baffle. A flow guiding mechanism is arranged inside the valve housing, and the flow guiding mechanism includes a flow guiding plate. Both ends of the flow guiding plate are hinged to the valve housing. When the flow guiding plate is at different angles, the water flow state inside the valve housing changes. The inner wall of the flow guiding plate fits with the outer wall of the auxiliary block, and the outer wall of the flow guiding plate fits with the inner wall of the valve housing. A valve structure is also arranged inside the valve housing, which is used to control the water flow state of the valve hole and drive the flow guiding plate to rotate. The control device is used to control the valve structure.

[0005] As a further improvement of this technical solution, one end of the valve housing is fixedly connected with an inlet pipe. Two sealing grooves are formed on the inner wall of the valve housing, and the inner wall of the valve housing is communicated with the inner wall of the inlet pipe. The other end of the valve housing is fixedly connected with an outlet pipe.

[0006] As a further improvement of this technical solution, the inner wall of the valve housing is communicated with the inner wall of the outlet pipe. Two positioning rods are fixedly connected to one side of the inner wall of the valve housing, and a mating groove is formed on one side of the positioning rods.

[0007] As a further improvement of this technical solution, a limiting groove is formed on the top of the valve housing, and the limiting groove is composed of a gear groove and a rotating groove, and the gear groove is communicated with the rotating groove.

[0008] As a further improvement of the technical solution, a sealing strip is fixedly connected to the outer wall of the deflector, and a torsion spring is fixedly connected to one end of the deflector.

[0009] As a further improvement of the technical solution, one end of the torsion spring is fixedly connected to the valve housing, a sealing member is fixedly connected to the inner wall of the deflector, and the sealing member is in contact with the side wall of the auxiliary block.

[0010] As a further improvement of the technical solution, the valve structure includes a switching mechanism, the switching mechanism includes a threaded rod, and a valve block is fixedly connected to the bottom end of the threaded rod. When the valve block is in the closed state, the side wall of the bottom end of the valve block is in contact with the side wall of the valve hole.

[0011] As a further improvement of the technical solution, the valve structure further includes a synchronization structure, the synchronization structure includes a synchronization rod, one end of the synchronization rod is internally inserted and matched with a telescopic rod, one end of the telescopic rod is hinged to the valve block, the other end of the synchronization rod is internally inserted and matched with a pull rod, the bottom end of the pull rod is hinged to the deflector, and two sides of the synchronization rod are fixedly connected with matching blocks, and the matching blocks are arranged inside the matching grooves.

[0012] As a further improvement of the technical solution, the control device includes a threaded sleeve, the threaded sleeve is rotatably arranged inside the top end of the valve housing, the inner wall of the threaded sleeve is threadedly connected to the outer wall of the threaded rod, and a plug rod is fixedly connected to the top end of the threaded sleeve.

[0013] As a further improvement of the technical solution, a lifting cylinder is sleeved on the top of the outer wall of the plug rod, a locking gear is arranged at the bottom end of the outer wall of the lifting cylinder, the outer wall of the locking gear is in conformity with the inner wall of the gear groove, a thrust spring is fixedly connected to the top end of the plug rod, the top end of the thrust spring is fixedly connected to the lifting cylinder, and a control disk is fixedly connected to the top end of the lifting cylinder.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the flow control valve with a flow stop function, when adjusting the height of the regulating valve block to control the water flow, the guide plate can be rotated synchronously through the cooperation of the synchronous structure and the mating groove. When the valve block is at different heights, the guide plate is at different angles. When it is necessary to close the valve hole, a reflux chamber can be formed at the bottom of the valve hole, which facilitates the sealing of the valve hole by the valve block and can also protect the valve block. When adjusting the water flow by adjusting the height of the valve block, the size of the reflux chamber on one side of the guide plate changes accordingly. At this time, the greater the water flow through the valve hole, the smaller the reflux chamber and the smaller the resistance to the water flow. When the water flow needs to be at the maximum position, the valve block is adjusted to the highest position. At this time, the guide plate no longer blocks the water flow, and the water flow can directly pass through the valve housing, with the minimum resistance to the water flow, effectively solving the problem of large resistance to water flow in common flow control valves.

[0016] 2. In the flow control valve with a flow stop function, reducing the number of turns of the thread for adjusting the height of the regulating valve block can effectively reduce the stroke for controlling the height of the valve block, enabling quick and convenient control of the valve block. After the adjustment is completed, the rotation of the insertion rod is limited through the cooperation of the locking gear and the gear groove, thereby determining the position of the valve block and avoiding the phenomenon of the valve block shaking. Brief Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the fixing device of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the fixing mechanism of the present invention;

[0020] Figure 4 It is a diagram of the water flow direction when the valve block of the present invention is in the closed position;

[0021] Figure 5 It is a diagram of the water flow direction when the valve block of the present invention is in the state of adjusting the water flow;

[0022] Figure 6 It is a diagram of the water flow direction when the valve block of the present invention is in the highest position;

[0023] Figure 7 It is a schematic diagram of the structure of the guide mechanism of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the switch mechanism of the present invention;

[0025] Figure 9 It is a schematic diagram of the structure of the synchronous structure of the present invention;

[0026] Figure 10Schematic structural diagram of the positioning rod of the present invention;

[0027] Figure 11 One of the schematic structural diagrams of the control device of the present invention;

[0028] Figure 12 Another schematic structural diagram of the control device of the present invention.

[0029] The meanings of each label in the figure are as follows:

[0030] 1. Fixing device;

[0031] 11. Fixing mechanism; 111. Valve housing; 112. Inlet pipe; 113. Outlet pipe; 114. Baffle; 115. Auxiliary block; 116. Positioning rod; 117. Fitting groove; 118. Limiting groove; 12. Flow guiding mechanism; 121. Flow guiding plate; 122. Sealing strip; 123. Torsion spring; 124. Sealing element; 13. Switching mechanism; 131. Threaded rod; 132. Valve block; 14. Synchronization structure; 141. Synchronization rod; 142. Pull rod; 143. Telescopic rod; 144. Fitting block;

[0032] 2. Control device;

[0033] 21. Control panel; 22. Lifting cylinder; 23. Insertion rod; 24. Thrust spring; 25. Threaded sleeve. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing 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 should not be construed as a limitation of the present invention.

[0036] Embodiment 1

[0037] The purpose of this embodiment is to provide a flow control valve with a flow stopping function. Considering that the water flow can circulate normally, please refer toFigures 1 - 3 As shown in the figure, it includes a fixing device 1 and a control device 2 arranged on the top of the fixing device 1. The fixing device 1 includes a fixing mechanism 11. The fixing mechanism 11 includes a valve housing 111, and the valve housing 111 is used to determine the position of the baffle 114. The inner wall of the valve housing 111 is fixedly connected with the baffle 114. The baffle 114 is used to cooperate with the guide plate 121 and the valve block 132 to divide the interior of the valve housing 111 into two parts. One end of the baffle 114 is fixedly connected with an auxiliary block 115, and the auxiliary block 115 is used to cooperate with the guide plate 121 to seal the hinged position where the guide plate 121 rotates. A valve hole is formed between the auxiliary block 115 and the baffle 114. One end of the valve housing 111 is fixedly connected with an inlet pipe 112, and the inlet pipe 112 is used to introduce water flow into the interior of the valve housing 111. Two sealing grooves are formed on the inner wall of the valve housing 111, and the sealing grooves are used to cooperate with the sealing strips 122 to seal the connection position between the guide plate 121 and the valve housing 111. The inner wall of the valve housing 111 is communicated with the inner wall of the inlet pipe 112. The other end of the valve housing 111 is fixedly connected with an outlet pipe 113, and the outlet pipe 113 is used to lead out the water flow in the valve housing 111. The inner wall of the valve housing 111 is communicated with the inner wall of the outlet pipe 113. Two positioning rods 116 are fixedly connected to one side of the inner wall of the valve housing 111, and the positioning rods 116 are used to determine the position of the mating block 144. A mating groove 117 is formed on one side of the positioning rod 116, and the mating groove 117 is used to limit the movement state of the mating block 144. A limiting groove 118 is formed on the top of the valve housing 111, and the limiting groove 118 is used to limit the state of the lifting cylinder 22. The limiting groove 118 is composed of a gear groove and a rotating groove, and the gear groove and the rotating groove are communicated, so as to achieve the effect that the water flow can circulate inside the valve housing 111.

[0038] Considering that it is necessary to seal the interior of the flow control valve during operation, please refer to Figure 7As shown, a diversion mechanism 12 is provided inside the valve housing 111. The diversion mechanism 12 includes a diversion plate 121. Both ends of the diversion plate 121 are hinged to the valve housing 111. When the diversion plate 121 is at different angles, the water flow state inside the valve housing 111 changes. The inner wall of the diversion plate 121 fits against the outer wall of the auxiliary block 115, and the outer wall of the diversion plate 121 fits against the inner wall of the valve housing 111. A sealing strip 122 is fixedly connected to the outer wall of the diversion plate 121. The sealing strip 122 is used to cooperate with the sealing groove to seal the connection position between the diversion plate 121 and the side wall of the valve housing 111. One end of the diversion plate 121 is fixedly connected to a torsion spring 123. The torsion spring 123 is used to apply a thrust to the diversion plate 121 when the diversion plate 121 rotates, facilitating the reset of the diversion plate 121. One end of the torsion spring 123 is fixedly connected to the valve housing 111. A sealing member 124 is fixedly connected to the inner wall of the diversion plate 121. The sealing member 124 is used to seal the connection position between the diversion plate 121 and the auxiliary block 115. The sealing member 124 fits against the side wall of the auxiliary block 115, achieving the effect of sealing both sides of the diversion plate 121.

[0039] Considering that common flow control valves have a relatively large resistance to water flow during operation, please refer to Figures 4 - 10 As shown, a valve structure is also provided inside the valve housing 111. The valve structure is used to control the water flow state of the valve hole and drive the diversion plate 121 to rotate. The valve structure includes a switching mechanism 13. The switching mechanism 13 includes a threaded rod 131. The threaded rod 131 is used to drive the valve block 132 to move. The bottom end of the threaded rod 131 is fixedly connected to the valve block 132. The valve block 132 is used to adjust the water flow rate of the valve hole. When the valve block 132 is in the closed state, the side wall of the bottom end of the valve block 132 fits against the side wall of the valve hole. The valve structure also includes a synchronization structure 14. The synchronization structure 14 includes a synchronization rod 141. The synchronization rod 141 is used to cooperate with the pull rod 142 and the telescopic rod 143 to make the valve block 132 and the diversion plate 121 move synchronously. One end of the inner wall of the synchronization rod 141 is inserted and fitted with the telescopic rod 143. The telescopic rod 143 is used to drive the synchronization rod 141 to move when the valve block 132 moves. One end of the telescopic rod 143 is hinged to the valve block 132. The other end of the inner wall of the synchronization rod 141 is inserted and fitted with the pull rod 142. The pull rod 142 is used to drive the diversion plate 121 to rotate when the synchronization rod 141 moves. The bottom end of the pull rod 142 is hinged to the diversion plate 121. Two sides of the synchronization rod 141 are fixedly connected with fitting blocks 144. The fitting blocks 144 are used to cooperate with the fitting grooves 117. Before the valve block 132 moves to the set position, the fitting blocks 144 rotate at the bottom of the fitting grooves 117. After the valve block 132 moves to the set position, the fitting blocks 144 slide on the fitting grooves 117. The fitting blocks 144 are arranged inside the fitting grooves 117, achieving the effect that the diversion plate 121 can rotate according to the movement of the valve block 132. When the valve block 132 moves to different positions, the diversion plate 121 is in different states:

[0040] When the valve block 132 is in the position where it closes or is about to close the valve hole, please refer to Figure 4 As shown, at this time, the flow guide plate 121 is in the middle position, the sealing strip 122 cooperates with the sealing groove at the top, and a return flow cavity is formed in the space between the flow guide plate 121 and the bottom of the valve hole. After the water flow flows into the valve housing 111 through the inlet pipe 112, the water flow hits the side wall of the flow guide plate 121 and forms a return flow in the return flow cavity. At this time, the impact force of the water flow at the position of the return flow cavity will be greatly reduced, which can protect the valve block 132, greatly extend the service life of the valve block 132, and can also reduce the impact force on the valve block 132 when the valve block 132 is closed, facilitating the closing of the valve block 132;

[0041] When the valve block 132 is in the range where it leaves the valve hole closing position and has not reached the highest position of the valve block 132, please refer to Figure 5 As shown, when the valve block 132 moves upward, the valve block 132 drives the synchronous rod 141 to rotate through the cooperation of the telescopic rod 143 and the synchronous rod 141. At this time, the fitting block 144 rotates at the bottom of the fitting groove 117, and the synchronous rod 141 drives the flow guide plate 121 to rotate downward through the cooperation with the pull rod 142 until the valve block 132 is about to approach the highest position. At this time, the sealing strip 122 cooperates with the sealing groove at the bottom end, and the space of the return flow cavity is gradually reduced until it disappears. Compared with common flow control valves, the resistance to water flow is smaller and will not affect the normal flow of water in the valve; when the valve block 132 moves downward, the torsion spring 123 will cooperate with the flow guide plate 121 to return to the original position, facilitating the reset of the flow guide plate 121. At this time, the greater the water flow rate through the valve hole, the smaller the return flow cavity and the smaller the resistance to the water flow;

[0042] When the valve block 132 is in the highest position, at this time, it is no longer necessary to control the flow rate inside the valve housing 111. Please refer to Figure 6 As shown, when the valve block 132 moves to the set position, the valve block 132 makes the fitting block 144 leave the bottom of the fitting groove 117 and slide upward through the cooperation of the telescopic rod 143 and the synchronous rod 141. The synchronous rod 141 drives the flow guide plate 121 to rotate upward through the cooperation with the pull rod 142, so that the flow guide plate 121 no longer blocks the water flow on the inner wall of the valve housing 111. At this time, the water flow can directly flow into the inside of the outlet pipe 113 through the inlet pipe 112 and the valve housing 111. At this time, the resistance to the water flow is the smallest, and the kinetic energy of the water flow can be effectively avoided from being wasted.

[0043] Considering that common flow control valves have a long stroke and a slow response speed when adjusting the flow rate, please refer to Figures 11 - 12As shown, the control device 2 is used to control the valve structure. The control device 2 includes a threaded sleeve 25 which is used to drive the threaded rod 131 to move. The threaded sleeve 25 is rotatably arranged inside the top of the valve housing 111. The inner wall of the threaded sleeve 25 is threadedly connected to the outer wall of the threaded rod 131. Therefore, the number of thread turns on the side wall of the threaded rod 131 is set to be less, which is convenient for quickly adjusting the position of the valve block 132. A plug rod 23 is fixedly connected to the top of the threaded sleeve 25. The plug rod 23 is used to drive the threaded sleeve 25 to rotate. A lifting cylinder 22 is sleeved on the top of the outer wall of the plug rod 23. The lifting cylinder 22 is used to drive the plug rod 23 to rotate. A locking gear is arranged at the bottom end of the outer wall of the lifting cylinder 22. The locking gear is used to control the rotation of the control disk 21. The outer wall of the locking gear fits with the inner wall of the gear groove. A thrust spring 24 is fixedly connected to the top of the plug rod 23. The thrust spring 24 is used to push the lifting cylinder 22 to move upward. The top end of the thrust spring 24 is fixedly connected to the lifting cylinder 22. A control disk 21 is fixedly connected to the top end of the lifting cylinder 22. The control disk 21 is used to drive the lifting cylinder 22 to rotate and slide up and down. Press the control disk 21 to make the lifting cylinder 22 drive the locking gear to move downward, so that the locking gear and the gear groove end the clamping fit. At this time, the locking gear is inside the rotation groove and can rotate freely. Rotate the control disk 21 to drive the plug rod 23 to rotate through the lifting cylinder 22. The plug rod 23 drives the threaded rod 131 to rotate through the threaded sleeve 25, completing the quick and convenient adjustment of the position of the valve block 132. At the same time, it can also meet the effect of fixing the position of the valve block 132 after the adjustment is completed.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow control valve with a flow stopping function, characterized in that: It includes a fixing device (1) and a control device (2) arranged on the top of the fixing device (1). The fixing device (1) includes a fixing mechanism (11). The fixing mechanism (11) includes a valve housing (111). An inner wall of the valve housing (111) is fixedly connected with a baffle (114). One end of the baffle (114) is fixedly connected with an auxiliary block (115). A valve hole is formed between the auxiliary block (115) and the baffle (114). A flow guiding mechanism (12) is arranged inside the valve housing (111). The flow guiding mechanism (12) includes a flow guiding plate (121). Two ends of the flow guiding plate (121) are hinged to the valve housing (111). When the flow guiding plate (121) is at different angles, the water flow state inside the valve housing (111) changes. An inner wall of the flow guiding plate (121) fits with an outer wall of the auxiliary block (115). An outer wall of the flow guiding plate (121) fits with an inner wall of the valve housing (111). A valve structure is further arranged inside the valve housing (111). The valve structure is used to control the water flow state of the valve hole and drive the flow guiding plate (121) to rotate. The control device (2) is used to control the valve structure; One end of the valve housing (111) is fixedly connected with an inlet pipe (112). Two sealing grooves are formed on an inner wall of the valve housing (111). An inner wall of the valve housing (111) is communicated with an inner wall of the inlet pipe (112). The other end of the valve housing (111) is fixedly connected with an outlet pipe (113). The inner wall of the valve housing (111) is communicated with the inner wall of the outlet pipe (113). Two positioning rods (116) are fixedly connected to one side of the inner wall of the valve housing (111). A matching groove (117) is formed on one side of the positioning rod (116); The valve structure further includes a synchronization structure (14). The synchronization structure (14) includes a synchronization rod (141). One end of an inner wall of the synchronization rod (141) is inserted and matched with a telescopic rod (143). One end of the telescopic rod (143) is hinged to a valve block (132). The other end of the inner wall of the synchronization rod (141) is inserted and matched with a pull rod (142). The bottom end of the pull rod (142) is hinged to the flow guiding plate (121). Two matching blocks (144) are fixedly connected to two sides of the synchronization rod (141). The matching blocks (144) are arranged inside the matching groove (117).

2. The flow control valve with a flow stop function according to claim 1, wherein: A limiting groove (118) is formed on the top of the valve housing (111). The limiting groove (118) is composed of a gear groove and a rotation groove. The gear groove is communicated with the rotation groove.

3. The flow control valve with a flow stop function according to claim 1, characterized in that: A sealing strip (122) is fixedly connected to an outer wall of the flow guiding plate (121). A torsion spring (123) is fixedly connected to one end of the flow guiding plate (121).

4. The flow control valve with a flow stoppage function according to claim 3, characterized in that: One end of the torsion spring (123) is fixedly connected to the valve housing (111). A sealing member (124) is fixedly connected to an inner wall of the flow guiding plate (121). The sealing member (124) fits with a side wall of the auxiliary block (115).

5. The flow control valve with a flow stopping function according to claim 2, wherein: The valve structure includes a switching mechanism (13), and the switching mechanism (13) includes a threaded rod (131). The bottom end of the threaded rod (131) is fixedly connected to a valve block (132). When the valve block (132) is in the closed state, the side wall of the bottom end of the valve block (132) fits against the side wall of the valve hole.

6. The flow control valve with a flow stopping function according to claim 5, characterized in that: The control device (2) includes a threaded sleeve (25). The threaded sleeve (25) is rotatably arranged inside the top end of the valve housing (111). The inner wall of the threaded sleeve (25) is threadedly connected to the outer wall of the threaded rod (131). The top end of the threaded sleeve (25) is fixedly connected to a plug rod (23).

7. The flow control valve with a flow stop function according to claim 6, characterized in that: A lifting cylinder (22) is sleeved on the top of the outer wall of the plug rod (23). A locking gear is provided at the bottom end of the outer wall of the lifting cylinder (22). The outer wall of the locking gear fits with the inner wall of the gear groove. The top end of the plug rod (23) is fixedly connected to a thrust spring (24). The top end of the thrust spring (24) is fixedly connected to the lifting cylinder (22). The top end of the lifting cylinder (22) is fixedly connected to a control disk (21).

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