Intelligent valve control opening and closing device

Abstract

The utility model belongs to valve technical field discloses an intelligent valve control opening and closing device, including valve body, valve seat, valve rod and valve core, the top of valve seat is equipped with fixed cylinder, installs the limit support on fixed cylinder, is equipped with the protective cover on the limit support, and the limit block on the limit support is screw thread cooperation and is connected with the lead screw, the outer surface screw thread cooperation and is connected with the moving seat of lead screw, and the moving seat is connected in fixed cylinder by sleeve joint installation, the bottom of moving seat is connected with valve core through valve rod, and lead screw is driven by driving part, and moving seat is limited and is guided to move by the limit rod, and driving part includes the gear of installation in the top of lead screw, the outer surface of gear is connected with the rack and is engaged, and gear and rack all are located in the protective cover, and the cylinder is installed on the protective cover, the piston rod of cylinder penetrates the protective cover, and the extension part is connected with one end of rack. The utility model through the cooperation of driving part and PLC controller, not only can promote response speed, can also promote the precision of adjustment.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to an intelligent valve control opening and closing device. Background Technology

[0002] Intelligent valve control opening and closing devices are equipment that integrates automation, sensing technology and intelligent algorithms. They are mainly used for remote or automatic control of valve opening, closing and flow regulation. Their core function is to achieve precise valve action by monitoring pipeline parameters (such as pressure, temperature, flow, etc.) in real time and combining preset logic or external commands, thereby optimizing industrial processes and improving safety.

[0003] Currently, valve opening and closing devices can be applied to scenarios such as petrochemicals, urban water supply, and heating, ventilation and air conditioning (HVAC). However, traditional valve opening and closing devices are mostly operated manually, which has problems such as slow response speed and inaccurate adjustment. Therefore, we propose an intelligent valve control opening and closing device. Utility Model Content

[0004] In view of the fact that most of the existing valve opening and closing devices are operated manually, which has problems such as slow response speed and inaccurate adjustment, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An intelligent valve control opening and closing device includes a valve body, a valve seat, a valve stem, and a valve core. A fixed cylinder is installed on the top of the valve seat, a limit frame is installed on the fixed cylinder, a protective cover is installed on the limit frame, a limit block on the limit frame is threadedly connected to a lead screw, a movable seat is threadedly connected to the outer surface of the lead screw, and the movable seat is sleeved and installed inside the fixed cylinder. The bottom of the movable seat is connected to the valve core through the valve stem. The lead screw is driven by a driving component, and the movable seat is limited and guided by the limit rod.

[0007] As a technical solution of the intelligent valve control opening and closing device of this utility model, the fixed cylinder has an integrally formed and symmetrically arranged fixed ear, one end of the limiting rod is installed on the fixed plate inside the fixed ear, the limiting rod passes through the protruding edge of the moving seat, and a limiting cylinder is installed on the protruding part.

[0008] As a technical solution of the intelligent valve control opening and closing device of this utility model, the driving component includes a gear installed on the top of the lead screw, a rack meshing with the outer surface of the gear, both the gear and the rack being located inside the protective cover, a cylinder being installed on the protective cover, the piston rod of the cylinder penetrating the protective cover, and the extended part being connected to one end of the rack.

[0009] As a technical solution of the intelligent valve control opening and closing device of this utility model, the protective cover adopts a closed and detachable structure, and the cover on the protective cover is snapped into the top opening of the protective cover.

[0010] As a technical solution of the intelligent valve control opening and closing device of this utility model, the lead screw is vertically arranged on the movable base, and the bottom outer surface of the lead screw is rotatably mounted on the movable base.

[0011] As a technical solution of the intelligent valve control opening and closing device of this utility model, the protective cover is equipped with a PLC controller with a touch screen for controlling the start and stop of the cylinder.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects:

[0013] 1. This utility model uses a PLC controller to activate the cylinder. The cylinder's piston rod moves the rack, which in turn rotates the gear, which in turn rotates the lead screw. The lead screw then moves the movable seat along its outer surface in a threaded motion. The movable seat, in turn, moves the valve core via the valve rod until the valve is fully closed. During this process, the movable seat moves along the outer surface of the limit rod to provide a limiting and guiding function, ensuring the stability of the valve core's linear motion and preventing control failure due to vibration. To open the valve, the PLC controller activates the cylinder and controls the piston rod to extend and retract in the opposite direction, thus improving response speed and adjustment accuracy.

[0014] 2. This utility model, by adopting an integrated fixed ear, limit rod guide, limit frame support and detachable protective cover design, can not only ensure the long-term stable operation of the device, but also reduce the corrosion of the device by external dust and moisture, and at the same time reduce maintenance costs and extend service life. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the overall main structure of this utility model.

[0017] Figure 2 This is a schematic side view of the overall structure of this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0020] Explanation of reference numerals in the attached figures:

[0021] In the diagram: 1. Valve body; 2. Valve seat; 3. Fixed cylinder; 301. Fixed lug; 4. Limiting bracket; 5. Protective cover; 6. Lead screw; 7. Moving seat; 8. Gear; 9. Rack; 10. Cylinder; 11. Limiting rod; 12. PLC controller. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Reference Figures 1-4 This invention provides an intelligent valve control opening and closing device, which includes a valve body 1, a valve seat 2, a valve stem, and a valve core. A fixed cylinder 3 is installed on the top of the valve seat 2, and a limit frame 4 is installed on the fixed cylinder 3. A protective cover 5 is installed on the limit frame 4. A lead screw 6 is threadedly connected to the limit block on the limit frame 4, and a movable seat 7 is threadedly connected to the outer surface of the lead screw 6. The movable seat 7 is sleeved and installed inside the fixed cylinder 3. The bottom of the movable seat 7 is connected to the valve core through the valve stem. The lead screw 6 is set parallel to the valve stem and is driven by a drive component. The movable seat 7 is limited and guided by a limit rod 11. In application, through the threaded engagement between the lead screw 6 and the movable seat 7 and the limiting and guiding effect of the limit rod 11, precise lifting and lowering control of the valve core is achieved, solving the problem of inaccurate adjustment of traditional manual valves. At the same time, combined with the drive component, the opening and closing process is automated to improve the response speed.

[0024] Reference Figure 3 and Figure 4 The fixed cylinder 3 has an integrally formed and symmetrically arranged fixed ear 301. One end of the limiting rod 11 is installed on the fixed plate inside the fixed ear 301. The limiting rod 11 passes through the protruding edge on the moving seat 7, and a limiting cylinder is installed on the protruding part. In application, the integrally formed design of the fixed ear 301 enhances the connection strength between the fixed cylinder 3 and the limiting rod 11. The configuration of the limiting cylinder prevents the moving seat 7 from moving excessively, ensures the stability of the linear movement of the valve core, and avoids control failure caused by vibration.

[0025] Reference Figure 3 and Figure 4The driving component includes a gear 8 mounted on the top of the lead screw 6. A rack 9 is meshed with the outer surface of the gear 8. Both the gear 8 and the rack 9 are located inside the protective cover 5. A cylinder 10 is mounted on the protective cover 5. The piston rod of the cylinder 10 passes through the protective cover 5 and its protruding part is connected to one end of the rack 9. In application, the meshing transmission of the gear 8 and the rack 9 combined with the drive of the cylinder 10 results in efficient power transmission and strong controllability. At the same time, the protective cover 5 provides sealing protection for the transmission components, reducing the corrosion of the device by external dust and moisture and extending its service life.

[0026] Reference Figure 1 and Figure 2 The protective cover 5 adopts a closed and detachable structure. The cover on the protective cover 5 is snapped into the top opening of the protective cover 5. In application, the detachable protective cover 5 facilitates the maintenance or replacement of the internal components of the gear 8 and rack 9, while maintaining the seal and taking into account both operation convenience and protection performance.

[0027] Reference Figures 1-4 The lead screw 6 is vertically mounted on the movable seat 7, and the outer surface of the bottom end of the lead screw 6 is rotatably installed inside the movable seat 7. In application, the vertical mounting of the lead screw 6 and the rotatable connection of the outer surface of its bottom end to the movable seat 7 can reduce frictional loss during transmission, reduce energy loss, and improve transmission efficiency.

[0028] Reference Figure 1 and Figure 3 The protective cover 5 is equipped with a PLC controller 12 with a touch screen for controlling the start and stop of the cylinder 10. In application, the PLC controller 12 integrates a touch screen to realize human-machine interaction, supports intelligent control of preset parameters (such as start and stop time, stroke), and is suitable for automated management of remote or complex working conditions.

[0029] The working principle of this utility model is as follows: When the valve needs to be closed, the cylinder 10 is activated by the PLC controller 12. At this time, the piston rod of the cylinder 10 drives the rack 9 to move, the rack 9 drives the gear 8 to rotate, the gear 8 drives the lead screw 6 to rotate, and the lead screw 6 drives the moving seat 7 to move along the outer surface of the lead screw 6. The moving seat 7 uses the valve rod to drive the valve core to move until the valve is fully closed. During this period, the moving seat 7 moves along the outer surface of the limit rod 11 to play a limiting and guiding role, while ensuring the stability of the linear movement of the valve core and avoiding control failure caused by vibration. If the valve needs to be opened, the cylinder 10 is activated by the PLC controller 12, and the piston rod on the cylinder 10 is controlled to extend and retract in the opposite direction, thereby facilitating the improvement of response speed and adjustment accuracy.

[0030] This utility model provides an intelligent valve control opening and closing device. Through the collaboration of the driving components (cylinder 10, gear 8 and rack 9) and PLC controller 12, it replaces the traditional manual operation, significantly improving the response speed and adjustment accuracy. It is suitable for scenarios requiring rapid response, such as petrochemical industry.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An intelligent valve control opening and closing device, comprising a valve body (1), a valve seat (2), a valve stem and a valve core, characterized in that: A fixed cylinder (3) is installed on the top of the valve seat (2). A limit frame (4) is installed on the fixed cylinder (3). A protective cover (5) is installed on the limit frame (4). A screw rod (6) is threadedly connected to the limit block on the limit frame (4). A movable seat (7) is threadedly connected to the outer surface of the screw rod (6). The movable seat (7) is sleeved and installed inside the fixed cylinder (3). The bottom of the movable seat (7) is connected to the valve core through the valve stem. The screw rod (6) is driven by a driving component. The movable seat (7) is limited and guided by the limit rod (11).

2. The intelligent valve control opening and closing device according to claim 1, characterized in that: The fixed cylinder (3) has an integrally formed and symmetrically arranged fixed ears (301). One end of the limiting rod (11) is installed on the fixing plate inside the fixed ear (301). The limiting rod (11) passes through the protruding edge on the movable seat (7), and a limiting cylinder is installed on the protruding part.

3. The intelligent valve control opening and closing device according to claim 1, characterized in that: The driving component includes a gear (8) mounted on the top of the lead screw (6), and a rack (9) meshes with the outer surface of the gear (8). Both the gear (8) and the rack (9) are located inside the protective cover (5). A cylinder (10) is mounted on the protective cover (5). The piston rod of the cylinder (10) passes through the protective cover (5), and its extended portion is connected to one end of the rack (9).

4. The intelligent valve control opening and closing device according to claim 1, characterized in that: The protective cover (5) adopts a closed and detachable structure, and the cover on the protective cover (5) is snapped into the top opening of the protective cover (5).

5. The intelligent valve control opening and closing device according to claim 1, characterized in that: The lead screw (6) is vertically mounted on the movable seat (7), and the bottom outer surface of the lead screw (6) is rotatably mounted on the movable seat (7).

6. The intelligent valve control opening and closing device according to claim 3, characterized in that: The protective cover (5) is equipped with a PLC controller (12) with a touch screen for controlling the start and stop of the cylinder (10).

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