Regulating valve

Abstract

The utility model discloses an adjusting valve which comprises a valve body, a flow channel is formed in the valve body, a sleeve, a valve core and an actuator are further arranged in the valve body, and the actuator is connected with the valve core and slides in the sleeve to adjust and cut off the flow channel. The adjusting piece comprises an adjusting net and an adjusting block, a plurality of evenly-arranged adjusting holes are formed in the adjusting net, the adjusting block and the adjusting net are in sliding connection, the valve element is connected with the adjusting block and controls the adjusting piece to slide in the sleeve, and when the actuator controls and adjusts sliding, the adjusting net abuts against the bottom of the sleeve firstly, and then the adjusting net abuts against the bottom of the sleeve. And then the adjusting block slides to cling to the adjusting net and seals the adjusting hole. The utility model has the following advantage and effect: the flow passing through the valve body can be adjusted more carefully.

Description

Technical Field

[0001] The utility model relates to the field of valves, and more specifically, to a regulating valve. Background Technique

[0002] As a core actuating element in industrial automation control systems, regulating valves are widely used in fluid control scenarios in fields such as petrochemical, power energy, pharmaceutical and food industries. Their core function is to precisely regulate parameters such as the flow rate and pressure of pipeline media through the mechanical movement of the internal structure of the valve body. Traditional regulating valves (such as globe valves, butterfly valves, ball valves, etc.) mostly use the linear displacement or rotational angle change between the valve core and the valve seat to adjust the flow cross-sectional area, thereby controlling the flow rate.

[0003] However, there are still defects in the existing technology in practical applications: the flow rate regulation of conventional regulating valves mostly relies on the mechanical transmission of the lead of the valve stem thread and the rotational angle of the handwheel, and uses the displacement of the valve core to adjust the flow rate. The amount of manual rotation adjustment is relatively large, and it is difficult to meet the adjustment requirements of micro flow rates. Summary of the Utility Model

[0004] The utility model provides a regulating valve that can perform more refined flow rate regulation.

[0005] To achieve the above object, the utility model provides the following technical solution: a regulating valve, including a valve body, a flow channel is formed in the valve body, a sleeve, a valve core and an actuator are further arranged in the valve body, the actuator is connected to the valve core and slides in the sleeve to adjust and cut off the flow channel, adjusting members are slidably arranged at both ends in the sleeve, the adjusting members include an adjusting net and an adjusting block, a number of uniformly arranged adjusting holes are arranged on the adjusting net, the adjusting block and the adjusting net are slidably connected, the valve core is connected to the adjusting block and controls the adjusting member to slide in the sleeve, when the actuator controls the adjustment to slide, the adjusting net first abuts against the bottom of the sleeve, and then the adjusting block slides tightly against the adjusting net and seals the adjusting holes.

[0006] The utility model is further arranged as: a sliding groove is arranged on the adjusting block, a sliding protrusion that slides in the sliding groove protrudes from the adjusting net, and an adjusting spring connecting the sliding protrusion is arranged in the sliding groove.

[0007] The utility model is further arranged as: a limiting depression is recessed on the sleeve, and a clamping depression matching with it is formed at one end of the adjusting net.

[0008] The utility model is further arranged as: an extrusion protrusion is arranged on one side of the adjusting block facing the valve core, a sealing bend is formed on the extrusion protrusion, a sealing member is arranged at the lower end of the valve core, the sealing member includes a sealing block arranged on the valve core and a clamping protrusion arranged on the sleeve, when the valve core cuts off, the valve core drives the extrusion protrusion to deform.

[0009] The present utility model is further configured such that: a sliding block for connecting an adjusting block is provided on the valve core. The sliding block includes a first connecting portion and a second sliding portion. A first groove and a second groove are formed on the first connecting portion. The first groove and the second groove are respectively disposed at two ends of the first connecting portion. And a driving block sliding in the first groove and a reset block abutting against the second groove protrude from the second sliding portion.

[0010] The present utility model is further configured such that: a sealing ring is provided on the valve core, and the sealing ring is closely attached to the sleeve.

[0011] The present utility model has the following effects: By providing an adjusting mesh and an adjusting block, during use, as the valve core cuts off downward, the adjusting block first moves downward to be located at two ends of the sleeve. At this time, the flow rate can only be discharged from the adjusting holes. Then, the adjusting block moves downward to gradually seal the adjusting holes. These two steps can gradually cut off the flow channel. Cooperating with the adjusting holes provided on the adjusting mesh makes the adjustment of the flow rate more delicate. Description of the Drawings

[0012] Figure 1 is a schematic structural view of the present utility model;

[0013] Figure 2 is an exploded view of the structure of the sliding block of the present utility model;

[0014] Figure 3 is an enlarged view of part A.

[0015] In the figure: 1, valve body; 2, sleeve; 3, valve core; 4, adjusting mesh; 41, adjusting hole; 42, sliding protrusion; 43, adjusting spring; 5, adjusting block; 51, sliding groove; 6, limiting recess; 61, sealing bend; 62, sealing block; 63, clamping protrusion; 71, first connecting portion; 72, second sliding portion; 712, first groove; 713, second groove; 722, driving block; 723, reset block; 723, sealing ring; 8, sealing ring. Detailed Embodiment

[0016] Next, the technical solutions of the present utility model will be described clearly and completely with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0018] Referring to Figures 1 to 3 The embodiments of the present utility model will be further described.

[0019] A regulating valve includes a valve body 1. A flow channel is formed in the valve body 1. A sleeve 2, a valve core 3 and an actuator are further arranged in the valve body 1. The actuator is connected to the valve core 3 and slides in the sleeve 2 to adjust and cut off the flow channel. Adjusting members are slidably arranged at both ends in the sleeve 2. The adjusting members include an adjusting net 4 and an adjusting block 5. A number of uniformly arranged adjusting holes 41 are provided on the adjusting net 4. The adjusting block 5 and the adjusting net 4 are slidably connected. The valve core 3 is connected to the adjusting block 5 and controls the adjusting members to slide in the sleeve 2. When the actuator controls the adjustment and sliding, the adjusting net 4 first abuts against the bottom of the sleeve, and then the adjusting block 5 slides closely against the adjusting net 4 to seal the adjusting holes 41. In use, by starting the actuator, the valve core 3 moves downward. At this time, the adjusting net 4 moves downward to abut against the sleeve 2, cutting off the channels at both ends of the sleeve 2, so that the fluid can only enter through the adjusting holes 41, performing the first-step adjustment and current limiting. During the downward movement of the adjusting net 4, due to the existence of the adjusting holes 41, the adjustment of the fluid by the valve body 1 can be more precise. After the adjusting net 4 abuts tightly, the adjusting block 5 gradually moves downward, gradually sealing the adjusting holes 41, for the second-step adjustment, further enhancing the fine adjustment ability of the valve body 1 for the fluid. Both ends of the adjusting net 4 and the adjusting block have limiting edges, and grooves are provided in the sleeve 2 to cooperate with them, so that the adjusting net 4 and the adjusting block can move along a predetermined track. Since adding this structure affects Figure 3 other structures in the figure, they are not marked in the figure.

[0020] A sliding groove 51 is provided on the adjusting block 5. A sliding protrusion 42 that slides in the sliding groove 51 protrudes from the adjusting net 4. An adjusting spring 43 connecting the sliding protrusion 42 is arranged in the sliding groove 51. The sliding protrusion 42 is arranged to slide in the sliding groove 51, so that when moving up and down, both ends of the sliding groove 51 can play a limiting role, enabling the adjusting net 4 to move up and down. At the same time, the adjusting spring 43 can drive the adjusting net 4 to reset.

[0021] A limiting recess 6 is formed in the sleeve 2, and a clamping recess is formed at one end of the adjusting mesh 4 for mating therewith, facilitating clamping and positioning, and the structure is convenient and practical.

[0022] On one side of the adjusting block 5 facing the valve core 3, an extrusion protrusion is provided. The extrusion protrusion has elastic ability, and a sealing bend 61 is formed on the extrusion protrusion. A sealing member is provided at the lower end of the valve core 3. The sealing member includes a sealing block 62 provided on the valve core 3 and a clamping protrusion 63 provided on the sleeve 2. When the valve core 3 is cut off, the valve core 3 drives the extrusion protrusion to deform. When moving downward, the deformation of the extrusion protrusion can be driven by the valve core 3, making the sealing more perfect. The structure is convenient and enhances the sealing performance of the valve.

[0023] A sliding block for connecting the adjusting block 5 is provided on the valve core 3. The sliding block includes a first connecting portion 71 and a second sliding portion 72. A first groove 712 and a second groove 713 are formed on the first connecting portion 71. The first groove 712 and the second groove 713 are respectively provided at both ends of the first connecting portion 71. And a driving block 722 that slides in the first groove 712 and a reset block 723 that abuts against the second groove 713 protrude from the second sliding portion 72, so that there is a certain displacement amount between the valve core 3 and the adjusting block, and the sealing bend 61 can be better extruded. At the same time, the reset block 723 is provided to drive the adjusting block to move upward when moving upward.

[0024] A sealing ring 8 is provided on the valve core 3. The sealing ring 8 is in close contact with the sleeve 2. The provision of the sealing ring 8 enhances the sealing ability of the valve.

[0025] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A regulating valve, comprising a valve body, a flow channel formed in the valve body, a sleeve, a valve core and an actuator are also arranged in the valve body, the actuator is connected to the valve core and slides in the sleeve to adjust and cut off the flow channel, characterized in that: Adjusting parts are slidingly arranged at both ends of the sleeve, and the adjusting parts include an adjusting net and an adjusting block. The adjusting net is provided with a plurality of evenly arranged adjusting holes. The adjusting block and the adjusting net are slidingly connected. The valve core is connected to the adjusting block and controls the adjusting part to slide in the sleeve. When the actuator controls the adjustment to slide, the adjusting net first abuts against the bottom of the sleeve, and then the adjusting block slides tightly against the adjusting net and seals the adjusting holes.

2. A regulating valve according to claim 1, characterized in that: The adjusting block is provided with a sliding groove, the adjusting net is provided with a sliding protrusion which slides in the sliding groove, and the sliding groove is provided with an adjusting spring connected with the sliding protrusion.

3. A regulating valve according to claim 1, characterized in that: The sleeve is recessed with a limited position recess, and one end of the adjustment net is formed with a clamping recess matched with the limited position recess.

4. A regulating valve according to claim 1, characterized in that: A squeezing protrusion is arranged on the side of the regulating block facing the valve core, and a sealing bend is formed on the squeezing protrusion. A sealing member is arranged at the lower end of the valve core, and the sealing member includes a sealing block arranged on the valve core and a clamping protrusion arranged on the sleeve. When the valve core is cut off, the valve core drives the squeezing protrusion to deform.

5. A regulating valve according to claim 4, characterized in that: A sliding block connected to the regulating block is arranged on the valve core, and the sliding block includes a first connecting part and a second sliding part, a first groove and a second groove are formed on the first connecting part, the first groove and the second groove are respectively arranged at two ends of the first connecting part, and a driving block sliding in the first groove and a reset block abutting the second groove are protruded on the second sliding part.

6. A regulating valve according to claim 1, characterized in that: A sealing ring is arranged on the valve core and is in close contact with the sleeve.

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