Speed limiting structure for throttling of regulating valve

Abstract

The utility model relates to the technical field of regulating valves, and discloses a regulating valve throttling speed limiting structure which comprises a valve body, a top cover is arranged at the top end of the valve body, a sealing gasket is arranged between the valve body and the top cover, the inner wall of the top end of the top cover is connected with a control plug through a speed limiting assembly, and the bottom sides of the left end and the right end of the valve body are fixedly connected with connecting pipes. A sealing plug is fixedly connected to the inner wall of the bottom end of the valve body, a plurality of through holes are formed in the left end and the right end of the sealing plug, the top sides of the left end and the right end of the valve body are connected with pulling plates through fixing assemblies, a connecting block is fixedly connected to the bottom end of the top cover, and the speed limiting assembly comprises a threaded rod located on the inner wall of the top end of the top cover in a threaded connection mode. According to the utility model, the threaded rod is rotated reversely, so that the control plug on the connecting rod moves downwards, through holes communicated with the sealing plug are reduced, the water flow in the connecting pipes on the two sides is reduced, the flow velocity can be adjusted, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a speed limiting structure for throttling regulating valves. Background Art

[0002] A regulating valve is an automatic control element used to control the flow, pressure and liquid level of fluid media (such as liquids and gases). In industrial processes, regulating valves play a vital role. They can accurately control the medium to ensure the stability and safe operation of the system. The working principle of the regulating valve is to control the opening of the valve through a driving device (such as a solenoid valve, pneumatic device, electric motor, etc.), thereby controlling the flow of the medium.

[0003] After searching, a throttling speed-limiting structure for a regulating valve with announcement number CN209876130U includes a sleeve, an inlet is opened at one end of the sleeve, the inner side of the inlet is connected to one end of the throttling cylinder, the outer side of the throttling cylinder is fixed to the inner wall of the sleeve through a shock-absorbing pad, and the outer side of the outlet port is distributed with flow holes, and the inner side of the outlet is clamped with a cylindrical grid plate corresponding to the flow holes, and the first flow-limiting plate is evenly distributed on one side of the throttling cylinder, and the inner wall of one end of the inlet is symmetrically fixed with an L-shaped throttling plate, and a first flow groove is opened between the L-shaped throttling plates. The utility model is a throttling speed-limiting structure for a regulating valve, and the fluid is connected through the first flow groove. The high-speed flowing medium is blocked by the U-shaped throttling plate, so that the impact potential energy is greatly reduced, and then flows to the first flow-limiting plate and the second flow-limiting plate arranged in an interlaced manner, which effectively reduces the speed of the fluid, improves the safety and stability of the operation system of the supporting equipment, and saves the equipment manufacturing and repair costs;

[0004] Based on the above patent, a throttling speed limiting structure for a regulating valve of the utility model has the advantages of simple manufacturing process steps and strong pressure resistance. In specific use, compared with the traditional throttling speed limiting structure, the utility model accesses the fluid through the first flow groove, and the high-speed flowing medium is blocked by the U-shaped throttling plate, so that the impact potential energy is greatly reduced, and then flows to the first flow limiting plate and the second flow limiting plate arranged in an alternating manner, which effectively reduces the speed of the fluid, improves the safety and stability of the operating system of the supporting equipment, reduces the labor intensity of workers, and saves equipment manufacturing and repair costs. However, although this scheme can play a role in speed limiting, it is impossible to adjust the flow rate, and it is not convenient to disassemble, so it is not practical. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a speed limiting structure for throttling a regulating valve, which can adjust the flow rate and improve the practicability of the device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A speed limiting structure for throttling a regulating valve comprises a valve body, a top cover is arranged on the top of the valve body, a sealing gasket is arranged between the valve body and the top cover, the inner wall of the top end of the top cover is connected to the control plug through a speed limiting component, connecting pipes are fixedly connected to the bottom sides of the left and right ends of the valve body, a sealing plug is fixedly connected to the inner wall of the bottom end of the valve body, a plurality of through holes are arranged on the left and right ends of the sealing plug, the top sides of the left and right ends of the valve body are connected to the pull plate through a fixing component, and a connecting block is fixedly connected to the bottom end of the top cover.

[0008] As a further improvement of the present invention, the speed limiting assembly includes a threaded rod threadedly connected to the inner wall of the top end of the top cover, a knob is fixedly connected to the top end of the threaded rod, a slide is rotatably connected to the bottom end of the threaded rod, a connecting rod is fixedly connected to the bottom end of the slide, and the inner wall of the top end of the control plug is fixedly connected to the bottom end of the connecting rod.

[0009] As a further improvement of the utility model, the fixing assembly includes fixing blocks slidably connected to the top sides of the left and right ends of the valve body, a pull rod is fixedly connected to the outer end of the fixing block, the fixing block is connected to the inner wall of the valve body by a spring, and the inner end of the pull plate is fixedly connected to the outer end of the pull rod.

[0010] As a further improvement of the utility model, both sides of the bottom end of the connecting block are fixedly connected to limit rods, and the inner walls of the left and right ends of the sliding plate are slidably connected to the outer walls of the limit rods.

[0011] As a further improvement of the utility model, the outer wall of the control plug fits with the inner wall of the sealing plug.

[0012] As a further improvement of the utility model, the inner side of the top end of the fixing block is configured to be an arc shape.

[0013] As a further improvement of the utility model, one end of the spring is connected to the fixing block, and the other end of the spring is connected to the inner wall of the valve body.

[0014] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0015] 1. In the utility model, the flow rate can be adjusted by the cooperation of the threaded rod, the knob, the connecting block, the slide plate, the limit rod, the connecting rod, the control plug, the sealing plug and the through hole, thereby improving the practicability of the device.

[0016] 2. In the utility model, the top cover can be disassembled by the cooperation of the fixing block, the pull rod, the pull plate and the spring, so that the control plug can be repaired conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a speed limiting structure for throttling a regulating valve proposed by the utility model;

[0018] Figure 2 It is a structural schematic diagram of a slide plate in a speed limiting structure for throttling a regulating valve proposed by the utility model;

[0019] Figure 3 Based Figure 2 A magnified view of middle;

[0020] Figure 4 The utility model is a schematic diagram of the structure of the sealing plug in the speed limiting structure for throttling of the regulating valve.

[0021] Legend:

[0022] 1. Valve body; 2. Top cover; 3. Sealing gasket; 4. Threaded rod; 5. Knob; 6. Connecting block; 7. Slide plate; 8. Limit rod; 9. Connecting rod; 10. Control plug; 11. Connecting pipe; 12. Sealing plug; 13. Through hole; 14. Fixing block; 15. Pull rod; 16. Pull plate; 17. Spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] Embodiment 1: A speed limiting structure for throttling a regulating valve comprises a valve body 1, a top cover 2 is arranged at the top of the valve body 1, a sealing gasket 3 is arranged between the valve body 1 and the top cover 2, a threaded rod 4 is threadedly connected to the inner wall of the top of the top cover 2, a knob 5 is fixedly connected to the top of the threaded rod 4, a slide plate 7 is rotatably connected to the bottom of the slide plate 7, a connecting rod 9 is fixedly connected to the bottom of the connecting rod 9, a control plug 10 is fixedly connected to the bottom end of the connecting rod 9 on the inner wall of the top end, both left and right ends of the valve body 1 are fixedly connected to connecting pipes 11, a sealing plug 12 is fixedly connected to the inner wall of the bottom end of the valve body 1, and a plurality of through holes 13 are arranged on the left and right ends of the sealing plug 12;

[0030] Specifically, when the flow rate needs to be adjusted, the knob 5 is rotated to drive the threaded rod 4 to rotate, and then the slide plate 7 is driven to move upward. The upward movement of the slide plate 7 drives the connecting rod 9 to move upward, and then the control plug 10 on the connecting rod 9 is driven to move upward, and the through holes 13 on the sealing plug 12 are increased, so that the water flow in the connecting pipes 11 on both sides becomes larger. When the water flow needs to be reduced, similarly, the threaded rod 4 is rotated in the opposite direction, so that the control plug 10 on the connecting rod 9 moves downward, and the through holes 13 on the sealing plug 12 are reduced, so that the water flow in the connecting pipes 11 on both sides becomes smaller.

[0031] Embodiment 2: The top sides of both left and right ends of the valve body 1 are slidably connected to the fixed blocks 14, and the outer ends of the fixed blocks 14 are fixedly connected to the pull rods 15. The fixed blocks 14 are connected to the inner wall of the valve body 1 through springs 17. One end of the spring 17 is connected to the fixed block 14, and the other end of the spring 17 is connected to the inner wall of the valve body 1. The inner ends of the pull plates 16 are fixedly connected to the outer ends of the pull rods 15, and the bottom end of the top cover 2 is fixedly connected to the connecting block 6;

[0032] Specifically, when the control plug 10 needs to be maintained, the pull plates 16 on both sides are pulled outward, thereby driving the pull rods 15 on both sides to move outward at the same time, and then driving the fixed blocks 14 on both sides to move outward, releasing the fixation of the fixed blocks 14 to the connecting block 6, and facilitating the removal of the top cover 2 on the connecting block 6, thereby maintaining the control plug 10. When the top cover 2 needs to be installed, the top cover 2 is placed in a suitable position, and the elastic force of the spring 17 is used to drive the fixed blocks 14 on both sides to move inward, thereby fixing the connecting block 6 on the top cover 2, and then installing the top cover 2. The sealing gasket 3 between the top cover 2 and the valve body 1 can increase the air tightness of the device.

[0033] As one of the optimized structural designs for Example 1, Figure 1-Figure 4 As shown, both sides of the bottom end of the connecting block 6 are fixedly connected to the limit rods 8, and the inner walls of the left and right ends of the slide plate 7 are slidably connected to the outer walls of the limit rods 8, which can limit the movement of the slide plate 7 so that the slide plate 7 can move. The outer wall of the control plug 10 fits with the inner wall of the sealing plug 12, which improves the speed limiting effect, and the inner side of the top of the fixed block 14 is set to an arc shape.

[0034] Working principle: First, when the flow rate needs to be adjusted, the knob 5 is turned to drive the threaded rod 4 to rotate, and then the slide plate 7 is moved upward. The upward movement of the slide plate 7 drives the connecting rod 9 to move upward, and then the control plug 10 on the connecting rod 9 is moved upward, increasing the through holes 13 on the sealing plug 12, so that the water flow in the connecting pipes 11 on both sides becomes larger. When the water flow needs to be reduced, similarly, the threaded rod 4 is rotated in the opposite direction to make the control plug 10 on the connecting rod 9 move downward, reducing the through holes 13 on the sealing plug 12, so that the water flow in the connecting pipes 11 on both sides becomes smaller. When the control plug 1 is adjusted, the control plug 10 on the connecting rod 9 moves downward, and the through holes 13 on the sealing plug 12 are reduced. When performing maintenance on the control plug 10, the pull plates 16 on both sides are pulled outward, thereby driving the pull rods 15 on both sides to move outward at the same time, thereby driving the fixing blocks 14 on both sides to move outward, releasing the fixing of the fixing blocks 14 to the connecting block 6, and conveniently removing the top cover 2 on the connecting block 6, thereby maintaining the control plug 10. When the top cover 2 is to be installed, the top cover 2 is placed in a suitable position, and the elastic force of the spring 17 is used to drive the fixing blocks 14 on both sides to move inward, thereby fixing the connecting block 6 on the top cover 2, and then installing the top cover 2. The sealing gasket 3 between the top cover 2 and the valve body 1 can improve the air tightness of the device.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A speed limiting structure for throttling a regulating valve, comprising a valve body (1), characterized in that: A top cover (2) is arranged at the top of the valve body (1), a sealing gasket (3) is arranged between the valve body (1) and the top cover (2), the inner wall of the top of the top cover (2) is connected to the control plug (10) through a speed limiting component, the bottom sides of the left and right ends of the valve body (1) are fixedly connected to connecting pipes (11), the inner wall of the bottom end of the valve body (1) is fixedly connected to a sealing plug (12), the left and right ends of the sealing plug (12) are provided with a plurality of through holes (13), the top sides of the left and right ends of the valve body (1) are connected to the pull plate (16) through a fixing component, and the bottom end of the top cover (2) is fixedly connected to a connecting block (6).

2. The speed limiting structure for throttling of a regulating valve according to claim 1, characterized in that: The speed limiting assembly comprises a threaded rod (4) threadedly connected to the inner wall of the top end of the top cover (2); a knob (5) is fixedly connected to the top end of the threaded rod (4); a slide plate (7) is rotatably connected to the bottom end of the slide plate (7); a connecting rod (9) is fixedly connected to the bottom end of the connecting rod (9); and the inner wall of the top end of the control plug (10) is fixedly connected to the bottom end of the connecting rod (9).

3. The speed limiting structure for throttling a regulating valve according to claim 1, characterized in that: The fixing assembly comprises a fixing block (14) slidably connected to the top sides of both left and right ends of the valve body (1), a pull rod (15) is fixedly connected to the outer end of the fixing block (14), the fixing block (14) and the inner wall of the valve body (1) are connected via a spring (17), and the inner end of the pull plate (16) is fixedly connected to the outer end of the pull rod (15).

4. The speed limiting structure for throttling a regulating valve according to claim 2, characterized in that: Both sides of the bottom end of the connection block (6) are fixedly connected to limit rods (8), and the inner walls of the left and right ends of the slide plate (7) are slidably connected to the outer walls of the limit rods (8).

5. The speed limiting structure for throttling of a regulating valve according to claim 1, characterized in that: The outer wall of the control plug (10) fits with the inner wall of the sealing plug (12).

6. The speed limiting structure for throttling a regulating valve according to claim 3, characterized in that: The inner side of the top end of the fixing block (14) is arranged in an arc shape.

7. The speed limiting structure for throttling a regulating valve according to claim 3, characterized in that: One end of the spring (17) is connected to the fixed block (14), and the other end of the spring (17) is connected to the inner wall of the valve body (1).

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