Anti-rotation structure for regulating valve

Abstract

The anti-rotation structure comprises a valve body, a connecting plate is fixedly installed on the upper surface of the valve body, a sliding cylinder is fixedly embedded in the upper surface of the connecting plate, a connecting frame is fixedly connected to the upper surface of the connecting plate, a rolling bearing is fixedly embedded in the upper surface of the connecting frame, and the rolling bearing is fixedly connected with the sliding cylinder. The inner ring of the rolling bearing is fixedly connected with a threaded cylinder, and the inner wall of the threaded cylinder is in threaded connection with a threaded rod. Through the design of a threaded cylinder and a threaded rod, a push rod is conveniently driven to slide in a sliding cylinder when a bearing seat moves up and down, at the moment, the flow of fluid is conveniently adjusted through connection between the push rod and a valve element, and then a limiting rod is conveniently pushed to slide in a sleeve according to the connection relation between a tension spring and a push plate; and the limiting rod can be conveniently inserted into the clamping groove, at the moment, the clamping groove and the limiting rod are matched, the push rod can be conveniently limited, meanwhile, the threaded barrel can be prevented from rotating, and the situation that the fluid flow is changed after adjustment is avoided.

Description

Technical Field

[0001] The utility model relates to the field of regulating valves, in particular to an anti-rotation structure for a regulating valve. Background Technique

[0002] A regulating valve is a valve used to control the flow rate of a fluid (liquid or gas). It adjusts the flow rate of the fluid passing through the valve by changing the opening degree of the valve, so as to achieve the purpose of controlling the fluid pressure, flow rate or temperature. Regulating valves are widely used in industrial process control, such as chemical industry, petroleum, electric power, water treatment and food processing industries.

[0003] At the present stage, after the regulating valve is adjusted, due to external factors, the problem of the rotating rod rotating easily occurs. The rotation of the rotating rod can push the push rod to drive the valve core to move, so that the adjusted flow rate will also change, which greatly affects the adjustment effect and is not conducive to current use. Therefore, we propose an anti-rotation structure for a regulating valve to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-rotation structure for a regulating valve to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-rotation structure for a regulating valve, including a valve body, a connecting plate is fixedly installed on the upper surface of the valve body, a sliding cylinder is fixedly embedded on the upper surface of the connecting plate, a connecting frame is fixedly connected to the upper surface of the connecting plate, a rolling bearing is fixedly embedded on the upper surface of the connecting frame, the inner ring of the rolling bearing is fixedly connected with a threaded cylinder, the inner wall of the threaded cylinder is threadedly connected with a threaded rod, the bottom end of the threaded rod is fixedly connected with a bearing seat, the bottom surface of the bearing seat is fixedly connected with a push rod, a group of clamping grooves are formed on the outer surface of the push rod, a sleeve is fixedly embedded on the right side surface of the connecting frame, a limiting rod is slidably connected to the inner wall of the sleeve, the right end of the limiting rod is fixedly connected with a push plate, a tension spring is fixedly connected to the left side surface of the push plate, and the left end of the tension spring is fixedly connected with the right side surface of the connecting frame.

[0007] In a further embodiment, the bottom end of the push rod penetrates through the sliding cylinder and is fixedly connected with the valve core inside the valve body, and flange plates are fixedly connected to both the left and right ends of the valve body.

[0008] In a further embodiment, a pulling handle is fixedly connected to the right side surface of the push plate, and a turning handle is fixedly connected to the top end of the threaded cylinder.

[0009] In a further embodiment, a warning sign is fixedly connected to the outer surface of the valve body, and an operation instruction sign is fixedly connected to the right side surface of the connecting frame.

[0010] In a further embodiment, two reinforcing blocks are fixedly connected to the upper surface of the connecting plate, and the left and right side surfaces of the connecting frame are respectively fixedly connected to the side surfaces of the two reinforcing blocks close to each other.

[0011] In a further embodiment, a positioning port is formed on the left side surface of the connecting frame, a positioning rod is slidably connected to the inner wall of the positioning port, and the right end of the positioning rod is fixedly connected to the outer surface of the push rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Through the design of the threaded cylinder and the threaded rod, the device facilitates the sliding of the push rod inside the sliding cylinder when the bearing seat moves up and down. At this time, by connecting the push rod and the valve core, it is convenient to adjust the flow rate of the fluid. Then, according to the connection relationship between the tension spring and the push plate, it is convenient to push the limiting rod to slide inside the sleeve, and it is convenient to insert the limiting rod into the clamping groove. At this time, by the cooperation of the clamping groove and the limiting rod, it is convenient to limit the push rod, and at the same time, it can prevent the threaded cylinder from rotating and avoid the change of the fluid flow rate after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the anti-rotation structure as a whole for a regulating valve;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the side view of the valve body of the anti-rotation structure for a regulating valve;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the front view of the connecting frame of the anti-rotation structure for a regulating valve;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the top view of the valve body of the anti-rotation structure for a regulating valve.

[0018] In the figure: 1, warning sign; 2, valve body; 3, sliding cylinder; 4, push plate; 5, tension spring; 6, rolling bearing; 7, turning handle; 8, threaded cylinder; 9, bearing seat; 10, connecting frame; 11, flange plate; 12, reinforcing block; 13, pull handle; 14, operation indicator; 15, connecting plate; 16, threaded rod; 17, positioning rod; 18, positioning port; 19, push rod; 20, sleeve; 21, limiting rod; 22, clamping groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4, in the present utility model, an anti-rotation structure for a regulating valve includes a valve body 2. A connecting plate 15 is fixedly installed on the upper surface of the valve body 2. A sliding cylinder 3 is fixedly embedded on the upper surface of the connecting plate 15. A connecting frame 10 is fixedly connected to the upper surface of the connecting plate 15. A rolling bearing 6 is fixedly embedded on the upper surface of the connecting frame 10. The inner ring of the rolling bearing 6 is fixedly connected to a threaded cylinder 8. A threaded rod 16 is threadedly connected to the inner wall of the threaded cylinder 8. The bottom end of the threaded rod 16 is fixedly connected to a bearing seat 9. The bottom surface of the bearing seat 9 is fixedly connected to a push rod 19. A set of card slots 22 are formed on the outer surface of the push rod 19. A sleeve 20 is fixedly embedded on the right side surface of the connecting frame 10. A limiting rod 21 is slidably connected to the inner wall of the sleeve 20. The right end of the limiting rod 21 is fixedly connected to a push plate 4. A tension spring 5 is fixedly connected to the left side surface of the push plate 4. The left end of the tension spring 5 is fixedly connected to the right side surface of the connecting frame 10.

[0023] The bottom end of the push rod 19 penetrates through the sliding cylinder 3 and is fixedly connected to the valve core inside the valve body 2. Flange plates 11 are fixedly connected to both the left and right ends of the valve body 2. The flange plates 11 facilitate the connection of the regulating valve to the pipeline. A pull handle 13 is fixedly connected to the right side surface of the push plate 4. A turning handle 7 is fixedly connected to the top end of the threaded cylinder 8. The pull handle 13 facilitates the pulling of the push plate 4 to move. The turning handle 7 facilitates the driving of the threaded cylinder 8 to rotate. A warning sign 1 is fixedly connected to the outer surface of the valve body 2. An operation indicator 14 is fixedly connected to the right side surface of the connecting frame 10. The warning sign 1 facilitates the reminder of matters for attention to the staff.

[0024] Two reinforcing blocks 12 are fixedly connected to the upper surface of the connecting plate 15. The side surfaces of the two reinforcing blocks 12 close to each other are respectively fixedly connected to the left and right side surfaces of the connecting frame 10. The reinforcing blocks 12 facilitate the increase of the stability of the connecting frame 10. A positioning opening 18 is formed on the left side surface of the connecting frame 10. A positioning rod 17 is slidably connected to the inner wall of the positioning opening 18. The right end of the positioning rod 17 is fixedly connected to the outer surface of the push rod 19. The cooperation of the positioning opening 18 and the positioning rod 17 can prevent the push rod 19 from rotating.

[0025] The working principle of the present utility model is:

[0026] When in use, first, by rotating the turning handle 7, the threaded cylinder 8 is driven to rotate inside the rolling bearing 6. And according to the cooperation of the threaded cylinder 8 and the threaded rod 16, the bearing seat 9 is subjected to the thrust of the threaded rod 16, pushing the push rod 19 to drive the valve core to move and adjust the flow rate of the fluid. After the adjustment is completed, the pulling force provided by the tension spring 5 drives the push plate 4 to move, and the push plate 4 pushes the limiting rod 21 to move inside the sleeve 20. At this time, the limiting rod 21 is inserted into the card slot 22, and the push rod 19 can be limited, and at the same time, the rotation of the threaded cylinder 8 is prevented.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0028] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anti-rotation structure for a regulating valve, characterized in that: The invention comprises a valve body (2), a connecting plate (15) is fixedly mounted on the upper surface of the valve body (2), a slide cylinder (3) is fixedly embedded on the upper surface of the connecting plate (15), a connecting frame (10) is fixedly connected to the upper surface of the connecting plate (15), a rolling bearing (6) is fixedly embedded on the upper surface of the connecting frame (10), a threaded cylinder (8) is fixedly connected to the inner ring of the rolling bearing (6), a threaded rod (16) is threadedly connected to the inner wall of the threaded cylinder (8), and a shaft is fixedly connected to the bottom end of the threaded rod (16). A bearing seat (9), the bottom surface of the bearing seat (9) is fixedly connected to a push rod (19), the outer surface of the push rod (19) is provided with a group of slots (22), the right side surface of the connecting frame (10) is fixedly inlaid with a sleeve (20), the inner wall of the sleeve (20) is slidably connected to a limit rod (21), the right end of the limit rod (21) is fixedly connected to a push plate (4), the left side surface of the push plate (4) is fixedly connected to a tension spring (5), and the left end of the tension spring (5) is fixedly connected to the right side surface of the connecting frame (10).

2. The anti-rotation structure for a regulating valve according to claim 1, characterized in that: The bottom end of the push rod (19) passes through the slide cylinder (3) and is fixedly connected to the valve core inside the valve body (2). The left and right ends of the valve body (2) are fixedly connected to flange plates (11).

3. The anti-rotation structure for a regulating valve according to claim 1, characterized in that: A pull handle (13) is fixedly connected to the right side of the push plate (4), and a turning handle (7) is fixedly connected to the top end of the threaded barrel (8).

4. The anti-rotation structure for a regulating valve according to claim 1, characterized in that: A warning sign (1) is fixedly connected to the outer surface of the valve body (2), and an operation indicator (14) is fixedly connected to the right side of the connecting frame (10).

5. The anti-rotation structure for a regulating valve according to claim 1, characterized in that: Two reinforcing blocks (12) are fixedly connected to the upper surface of the connecting plate (15), and the side surfaces of the two reinforcing blocks (12) close to each other are fixedly connected to the left and right side surfaces of the connecting frame (10) respectively.

6. The anti-rotation structure for a regulating valve according to claim 1, characterized in that: A positioning opening (18) is provided on the left side of the connecting frame (10), a positioning rod (17) is slidably connected to the inner wall of the positioning opening (18), and the right end of the positioning rod (17) is fixedly connected to the outer surface of the push rod (19).

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