High-precision regulating valve

Abstract

The utility model relates to the technical field of regulating valve equipment, and discloses a high-precision regulating valve which comprises a valve body, a first pipeline is fixedly connected to the lower surface of the valve body, a screwing rod is in threaded connection with the interior of the valve body, a valve plug is fixedly connected to the lower surface of the screwing rod, and a rotating disc is arranged on the upper surface of the valve body. A second pipeline is arranged on one side of the outer wall of the first pipeline, a sealing box is arranged in the second pipeline, a filter plate is slidably connected into the sealing box, a clamping assembly is arranged in the sealing box and used for fixing and detaching the filter plate, and a protection assembly is arranged in the sealing box. The protection assembly is used for preventing external dust from entering the filter plate. According to the utility model, the filter plate can be conveniently disassembled and cleaned, the filter plate can be simply and quickly cleaned through simple clamping operation, the labor and time cost is saved, and meanwhile, the misoperation of the regulating valve caused by mistakenly touching the rotating disc is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of governing valve equipment, especially high-precision governing valve. BACKGROUND

[0002] In industrial production and many fluid conveying systems, the governing valve plays a crucial role, which can accurately control the flow, pressure and other parameters of the fluid to meet the needs of different working conditions and ensure the stable and efficient operation of the whole system. However, in the actual application process of the governing valve, the fluid medium is often not completely pure, and may contain various impurities such as particulate solid matter, rust slag and scaling matter. In order to prevent these impurities from entering the internal precision regulating mechanism of the governing valve, an internal filter plate is generally arranged at the inlet of the governing valve.

[0003] With the increase of the use time of the governing valve, the impurities in the fluid will gradually accumulate on the filter plate. When the impurities accumulate to a certain extent, the filter plate will be blocked, which will increase the resistance of the fluid passing through, and then affect the flow control characteristics of the governing valve and reduce the regulating precision. At this time, the filter plate needs to be cleaned or replaced.

[0004] However, the existing governing valve has many inconveniences in cleaning the internal filter plate. On the one hand, the structure design of most governing valves makes the disassembly process of the filter plate more complex. A large number of connected components need to be removed first, and then the filter plate can be taken out. This not only consumes a lot of manpower and time, but also easily damages other components of the governing valve during disassembly, increasing the maintenance cost and equipment failure risk. On the other hand, when the filter plate of some governing valves is reinstalled after cleaning, it is difficult to ensure the accuracy and sealing of the installation position, which may cause fluid leakage or filter plate blockage again, affecting the normal operation of the governing valve. SUMMARY

[0005] In order to make up for the above shortcomings, the utility model provides a high-precision governing valve, which aims to improve the problem that the existing governing valve needs to remove a large number of connected components first before taking out the filter plate during cleaning of the internal filter plate, thereby greatly increasing the workload of the operator.

[0006] To achieve the above object, the utility model provides the following technical scheme: High accuracy governing valve, including valve body, the valve body lower surface fixedly connected with pipeline no.

[0007] Further, the protection assembly includes a sliding groove, the sliding groove is arranged in the sealing box, and the sealing box is provided with a sealing cover.

[0008] Further, the screw rod is provided with a connecting barrel on the upper surface, and the connecting barrel is provided with a clamping barrel on the inner wall.

[0009] Further, the clamping barrel is fixedly connected with a spring no.

[0010] Further, the connecting barrel is provided with a clamping groove in the inner wall, and the clamping groove is used for clamping the clamping block.

[0011] Further, the pipeline no.

[0012] Further, the pipeline no.

[0013] Further, the pipeline no.

[0014] The utility model has the advantages of:

[0015] 1. The utility model discloses a filter plate is set up in the sealing box, and is set through the clamping assembly, when needing to clean or replace the filter plate, through the sliding seal cover, can make the filter plate expose, then through the pullout card rod, thereby can remove it from the card hole, and then can pull out the filter plate from the sealing box, thereby convenient disassembly and cleaning of the filter plate are realized, when installing the filter plate, the filter plate is inserted into the sealing box, and then the card rod is loosened, and the card rod is in the card hole through spring one rebound, thereby the fixation of the filter plate is realized, through simple clamping operation, the cleaning of the filter plate becomes simple and fast, saves manpower and time simultaneously, and maintenance cost is also reduced.

[0016] 2. The utility model discloses through the setting of the butt joint groove, butt joint ring and bolt, make the whole regulating valve's pipeline connection more stable and seal, through the design of spring no. 2 and the clamping block, make the clamping block under the action of spring no. 2 be in the inside of the clamping cylinder under normal conditions, the rotating disc cannot rotate with the twist rod at will, only when artificially pull up the rotating disc, make the clamping cylinder move up to the clamping block with the clamping groove of connecting cylinder correspond and under the action of spring no. 2 and be clamped into the clamping groove, can realize the rotating disc drive twist rod rotation to adjust flow, this design thereby effectively prevent the regulating valve misoperation caused by accidental touch rotating disc, improve the security and reliability of regulating valve use. ACCURACY ADJUSTING VALVE

[0017] Figure 1 It is the three-dimensional structure schematic diagram of high accuracy adjusting valve that the utility model proposes;

[0018] Figure 2 It is the filter plate part structure schematic diagram of high accuracy adjusting valve that the utility model proposes;

[0019] Figure 3 It is the sealing box part structure schematic diagram of high accuracy adjusting valve that the utility model proposes;

[0020] Figure 4 It is the connecting box part structure schematic diagram of high accuracy adjusting valve that the utility model proposes;

[0021] Figure 5 It is the rotating disc part structure schematic diagram of high accuracy adjusting valve that the utility model proposes;

[0022] Figure 6 It is Figure 5 The enlarged view of A in

[0023] Figure 7 It is the butt joint groove part structure schematic diagram of high accuracy adjusting valve that the utility model proposes.

[0024] Legend:

[0025] 1, valve body; 2, pipeline I; 3, valve plug; 4, twist rod; 5, rotating disc; 6, sealing box; 7, filter plate; 8, sealing cover; 9, sliding groove; 10, clamping hole; 11, connecting box; 12, clamping rod; 13, moving block; 14, spring I; 15, pipeline II; 16, connecting cylinder; 17, clamping groove; 18, clamping cylinder; 19, clamping block; 20, spring II; 21, butt joint groove; 22, butt joint ring; 23, bolt. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] With reference to Figure 1 - Figure 3The utility model provides a kind of embodiment: high-precision regulating valve, including valve body 1, valve body 1 lower surface is fixedly connected with pipeline one 2, pipeline one 2 outer wall one side is provided with pipeline two 15, pipeline two 15 inside is provided with sealed box 6, filter plate 7 is slidably connected in sealed box 6, when fluid flows from pipeline one 2, impurity in fluid can be filtered by filter plate 7 in sealed box 6, with the increase of regulating valve use time, impurity in fluid can gradually be accumulated on filter plate 7, sealed box 6 inside is provided with clamping assembly, clamping assembly is used to fixed and disassembled filter plate 7, clamping assembly includes connecting box 11, connecting box 11 outer wall is fixedly connected in sealed box 6, connecting box 11 inner wall is slidably connected with moving block 13, moving block 13 is fixedly connected with clamping rod 12 in inside, spring one 14 is sleeved on the outer wall of clamping rod 12, clamping hole 10 is set in filter plate 7, when needing to clean or replace filter plate 7, sealed cover 8 can be first slid, so that it is along the sliding slot 9 of sealed box 6 outer wall and slides open, so that filter plate 7 in sealed box 6 can be exposed, then clamping rod 12 can be pulled outwards, so that clamping rod 12 can drive moving block 13 to slide on the inner wall of connecting box 11, simultaneously, spring one 14 will be extruded and compressed by moving block 13, until clamping rod 12 can be removed from the clamping hole 10 in filter plate 7, at this moment, filter plate 7 can be pulled out from sealed box 6, so that the cleaning or replacement of filter plate 7 is realized, sealed box 6 inside is provided with protection assembly, protection assembly is used to prevent external dust from entering filter plate 7 inside, protection assembly includes sliding slot 9, sliding slot 9 is set in sealed box 6, sealed cover 8 is set on the outer wall of sealed box 6, sealed cover 8 is slidably connected in the inner wall of sliding slot 9, when installing filter plate 7, filter plate 7 is placed and inserted into sealed box 6 vertically, until filter plate 7 completely enters sealed box 6, at this moment, moving block 13 is loosened, by the rebound of spring one 14, clamping rod 12 can be re-clamped into clamping hole 10, so that the fixation of filter plate 7 is realized, then sealed cover 8 is slid back to original position, prevent external dust from entering filter plate 7 inside.

[0028] Refer to Figure 4 - Figure 5The valve body 1 is internally screwed with a screwing rod 4, the lower surface of the screwing rod 4 is fixedly connected with a valve plug 3, the upper surface of the valve body 1 is provided with a rotating disc 5, the upper surface of the screwing rod 4 is fixedly connected with a connecting barrel 16, the inner wall of the connecting barrel 16 is provided with a clamping barrel 18, the upper surface of the clamping barrel 18 is fixedly connected to the lower surface of the rotating disc 5, the inner part of the clamping barrel 18 is fixedly connected with a spring 20, one end of the spring 20 is fixedly connected with a clamping block 19, first, the rotating disc 5 can be pulled upwards, so that the rotating disc 5 drives the clamping barrel 18 to move upwards along the inner wall of the connecting barrel 16, at this time, the clamping block 19 is always in the inner part of the clamping barrel 18 due to the extrusion of the inner wall of the connecting barrel 16, and the spring 20 is also always in a compressed state, until the clamping barrel 18 is pulled upwards to the corresponding position of the clamping block 19 and the clamping groove 17, at this time, the elastic effect of the spring 20 can exert a spring force on the clamping block 19, so that the clamping block 19 can be clamped and fixed in the clamping groove 17, at this time, the rotating disc 5 can be rotated, so that the rotating disc 5 drives the screwing rod 4 to rotate, through the screwing connection between the screwing rod 4 and the valve body 1, as the screwing rod 4 rotates, the valve plug 3 fixedly connected to the lower surface of the screwing rod 4 moves up and down in the valve body 1, so as to change the cross-sectional area of the passage in the valve body 1, thereby realizing the control of the fluid flow, the inner part of the connecting barrel 16 is provided with a clamping groove 17, the clamping groove 17 is used for clamping the clamping block 19, one side of the outer wall of the pipeline 1 is fixedly connected with a butt joint ring 22, the inner part of the pipeline 2 is provided with a butt joint groove 21, the butt joint groove 21 is used for butt joint with the butt joint ring 22, the inner part of the pipeline 1 and the pipeline 2 is provided with a bolt 23, the bolt 23 is used for sealing and fixing the pipeline 1 and the pipeline 2, through the arrangement of the butt joint groove 21, the butt joint ring 22 and the bolt 23, the pipeline 1 and the pipeline 2 can be sealingly fixed, so that the pipeline connection of the whole regulating valve is stable and sealing, and the normal flow of the fluid in the pipeline is ensured, and the installation and disassembly of the pipeline are facilitated.

[0029] Working principle: when it is necessary to control the fluid flow in the regulating valve, first, the rotating disc 5 can be pulled upwards, so that the rotating disc 5 drives the clamping barrel 18 to move upwards along the inner wall of the connecting barrel 16, at this time, the clamping block 19 is always in the inner part of the clamping barrel 18 due to the extrusion of the inner wall of the connecting barrel 16, and the spring 20 is also always in a compressed state, until the clamping barrel 18 is pulled upwards to the corresponding position of the clamping block 19 and the clamping groove 17, at this time, the elastic effect of the spring 20 can exert a spring force on the clamping block 19, so that the clamping block 19 can be clamped and fixed in the clamping groove 17, at this time, the rotating disc 5 can be rotated, so that the rotating disc 5 drives the screwing rod 4 to rotate, through the screwing connection between the screwing rod 4 and the valve body 1, as the screwing rod 4 rotates, the valve plug 3 fixedly connected to the lower surface of the screwing rod 4 moves up and down in the valve body 1, so as to change the cross-sectional area of the passage in the valve body 1, thereby realizing the control of the fluid flow;

[0030] When the fluid flows from the pipe 2, the impurities in the fluid are filtered by the filter plate 7 in the sealing box 6, and the impurities in the fluid will gradually accumulate on the filter plate 7 as the regulating valve is used for a long time, when the filter plate 7 needs to be cleaned or replaced, the sealing cover 8 can be first slid to slide along the sliding groove 9 on the outer wall of the sealing box 6, so that the filter plate 7 in the sealing box 6 is exposed, then the clamping rod 12 can be pulled out, so that the moving block 13 can slide in the connecting box 11, and the spring 14 is compressed by the moving block 13, until the clamping rod 12 can be removed from the clamping hole 10 in the filter plate 7, at this time the filter plate 7 can be pulled out of the sealing box 6, so that the cleaning or replacement of the filter plate 7 is realized, when installing the filter plate 7, the filter plate 7 is inserted vertically into the sealing box 6, until the filter plate 7 is completely inserted into the sealing box 6, at this time the moving block 13 is loosened, the clamping rod 12 can be re-clamped into the clamping hole 10 through the rebound of the spring 14, so that the fixing of the filter plate 7 is realized, then the sealing cover 8 is slid back to the original position to prevent external dust from entering the inside of the filter plate 7.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A high-precision regulating valve comprising a valve body (1), characterized in that: The lower surface of the valve body (1) is fixedly connected with a pipeline I (2), the inside of the valve body (1) is threadedly connected with a twisting rod (4), the lower surface of the twisting rod (4) is fixedly connected with a valve plug (3), the upper surface of the valve body (1) is provided with a rotating disc (5), one side of the outer wall of the pipeline I (2) is provided with a pipeline II (15), the inside of the pipeline II (15) is provided with a sealing box (6), the inside of the sealing box (6) is slidably connected with a filter plate (7), the inside of the sealing box (6) is provided with a clamping assembly, the clamping assembly is used for fixing and disassembling the filter plate (7), the inside of the sealing box (6) is provided with a protection assembly, and the protection assembly is used for preventing external dust from entering the inside of the filter plate (7). The clamping assembly comprises a connecting box (11), the connecting box (11) is fixedly connected to the inside of the sealing box (6), the inner wall of the connecting box (11) is slidably connected with a moving block (13), the inside of the moving block (13) is fixedly connected with a clamping rod (12), the outer wall of the clamping rod (12) is sleeved with a spring I (14), and the inside of the filter plate (7) is provided with a clamping hole (10).

2. The high precision control valve according to claim 1, characterized in that: The protection assembly comprises a sliding groove (9), the sliding groove (9) is arranged in the inside of the sealing box (6), and the outer wall of the sealing box (6) is provided with a sealing cover (8).

3. The high precision control valve of claim 1, wherein: The upper surface of the twisting rod (4) is fixedly connected with a connecting barrel (16), the inner wall of the connecting barrel (16) is provided with a clamping barrel (18), and the upper surface of the clamping barrel (18) is fixedly connected to the lower surface of the rotating disc (5).

4. The high precision control valve according to claim 3, wherein: The inside of the clamping barrel (18) is fixedly connected with a spring II (20), one end of the spring II (20) is fixedly connected with a clamping block (19).

5. The high precision control valve according to claim 4, wherein: The inside of the connecting barrel (16) is provided with a clamping groove (17), and the clamping groove (17) is used for clamping the clamping block (19).

6. The high precision control valve of claim 1, wherein: One side of the outer wall of the pipeline I (2) is fixedly connected with a butt joint ring (22).

7. The high precision control valve according to claim 6, wherein: The inside of the pipeline II (15) is provided with a butt joint groove (21), and the butt joint groove (21) is used for butt joint with the butt joint ring (22).

8. The high precision control valve of claim 1, wherein: The inside of the pipeline I (2) and the pipeline II (15) are provided with bolts (23), and the bolts (23) are used for sealing and fixing the pipeline I (2) and the pipeline II (15).

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