Bidirectional sealing control valve

Abstract

The utility model relates to the technical field of control valves, and discloses a two-way sealing control valve which comprises a valve body and a valve cover, the valve cover is installed at the top of the valve body through a plurality of connecting bolts, a valve seat is installed at the middle end in the valve body in a threaded mode, a sealing piece is arranged at one end in the valve cover, a valve rod is inserted in the middle of the sealing piece, and the valve rod is connected with the valve cover. Threads are arranged on the outer surface of the upper half section of the valve rod, and a valve element is fixedly arranged at one end of the valve rod. The valve cover and the valve body are separated by taking out the connecting bolts, the valve seat is in threaded connection with the middle of the valve body, so that the valve seat can be quickly mounted and dismounted, the valve rod is taken out of the valve cover by taking down the detachable rotating disc, then the positioning sleeve in threaded connection with the interior of the valve cover is taken down, and the valve cover is mounted and dismounted. And due to the lack of pressure fixation of the positioning sleeve on the sealing element, the sealing element can be taken out from the interior of the valve cover, so that the effect of quickly disassembling the whole control valve is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to control valve technical field especially relates to a two -way sealed control valve. BACKGROUND

[0002] Control valve is a kind of device for controlling fluid flow, pressure, temperature and other parameters, control valve has wide application in industrial production, energy, chemical industry, environmental protection and other fields, is indispensable control element in pipeline system.

[0003] Traditional control valve is mostly one-piece structure and is inconvenient to disassemble and replace internal structure, since one-piece structure, maintenance personnel need to disassemble the entire control valve from pipeline to maintain, which not only increases the difficulty and time of maintenance, but also can cause unnecessary damage to pipeline system, and overall replacement can improve maintenance cost.

[0004] Therefore, the person skilled in the art provides a two-way sealed control valve to solve the problems in the above background. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a two-way sealed control valve, which separates the valve cover from the valve body by removing multiple connecting bolts, and the valve seat and the middle part of the valve body are threadedly connected, so that the valve seat can be quickly installed and disassembled, the valve stem is removed from the valve cover by removing the detachable turntable, and then the positioning sleeve threadedly connected inside the valve cover is removed, the sealing element can be removed from the inside of the valve cover due to the lack of the pressure fixation of the positioning sleeve on the sealing element, thereby achieving the effect of quickly disassembling the entire control valve, and solving the defect that the traditional one-piece control valve is inconvenient to disassemble and replace internal structure.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A two-way sealed control valve includes a valve body and a valve cover, the valve cover is installed on the top of the valve body through multiple connecting bolts, a valve seat is threadedly installed in the middle end of the inside of the valve body, a sealing element is arranged at one end of the inside of the valve cover, a valve stem is inserted into the middle part of the sealing element, threads are arranged on the outer surface of the upper half of the valve stem, a valve core is fixedly arranged at one end of the valve stem, a positioning sleeve is threadedly installed in the inside of the valve cover, the bottom end of the positioning sleeve is attached to the top end of the sealing element, and the valve stem is threadedly connected with the positioning sleeve.

[0008] By the technical scheme, the valve cover is separated from the valve body by taking out the plurality of connecting bolts, the valve seat is threadedly connected with the middle part of the valve body, the valve seat can be quickly installed and dismounted, the valve rod is taken out from the valve cover by taking off the detachable rotary disc, the positioning sleeve is taken off by threadedly connecting the valve cover, the sealing element is taken out from the valve cover due to the lack of the pressure fixation of the positioning sleeve on the sealing element, the entire control valve is quickly dismounted, and the defect that the traditional integrated control valve is inconvenient to dismount and replace the internal structure is solved.

[0009] Further, the top end of the valve seat is provided with a sealing groove, and a semicircular sealing ring is fixedly arranged at the inner bottom end of the sealing groove.

[0010] By the technical scheme, the top end of the valve seat is provided with a sealing groove, and the bottom end of the valve core is integrally provided with a sealing ring, and the size and shape of the sealing ring and the sealing groove are matched, and the sealing effect is further improved on the basis of the sealing of the valve core and the valve seat by moving and pressing the semicircular sealing ring at the inner bottom end of the sealing groove through the sealing ring.

[0011] Further, the bottom end of the valve core is integrally provided with an arc-shaped disc through a rod, and a plurality of through holes are uniformly arranged on the surface of the arc-shaped disc.

[0012] By the technical scheme, the arc-shaped disc with the through holes is arranged at the lower end of the valve core, so that the flowing water can be filtered after the valve core is opened, and the quality of the water is improved.

[0013] Further, the water inlet on each side of the valve body is integrally provided with a flange plate, and a group of flange holes are arranged on the surface of each flange plate.

[0014] By the technical scheme, the water inlet on each side of the valve body is integrally provided with a flange plate, and a group of flange holes are arranged on the surface of each flange plate, so that the flange plates are conveniently connected with the pipelines.

[0015] Further, a fixing groove is arranged at the top end of the valve body, and a fixing ring is integrally arranged at the bottom end of the valve cover, and the size of the fixing ring is matched with the size of the fixing groove.

[0016] By the technical scheme, the fixing groove is arranged at the top end of the valve body, and the fixing ring is integrally arranged at the bottom end of the valve cover, and the size of the fixing ring is matched with the size of the fixing groove, so that the sealing effect between the valve body and the valve cover is improved by the fitting of the fixing ring and the fixing groove.

[0017] Further, a water inlet hole is arranged at the middle part of the valve seat, and the diameter of the water inlet hole is slightly larger than that of the arc-shaped disc.

[0018] Through the technical scheme, the water passage is arranged in the middle of the valve seat to facilitate the flow of water, and the diameter of the water passage is slightly larger than that of the arc-shaped disc to facilitate the upward movement of the arc-shaped disc.

[0019] Further, the top end of the valve rod is fixedly provided with a rotary disc, and the rotary disc is detachable.

[0020] Through the technical scheme, the top end of the valve rod is fixedly provided with a rotary disc, and the rotary disc is detachable.

[0021] The utility model has the advantages of:

[0022] 1. The utility model discloses a bidirectional sealing control valve, which is separated from the valve body by taking out a plurality of connecting bolts, and the valve seat and the middle part of the valve body are threadedly connected, so that the valve seat can be quickly installed and disassembled.

[0023] 2. The utility model discloses a bidirectional sealing control valve, which is separated from the valve body by taking out a plurality of connecting bolts, and the valve seat and the middle part of the valve body are threadedly connected, so that the valve seat can be quickly installed and disassembled. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is an axial view of the bidirectional sealing control valve.

[0025] Figure 2 It is a sectional view of the bidirectional sealing control valve.

[0026] Figure 3 It is a front view of the bidirectional sealing control valve.

[0027] Figure 4 It is Figure 2 It is an enlarged view of the middle A.

[0028] Figure 5 It is Figure 2 It is an enlarged view of the middle B.

[0029] Legend:

[0030] 1, valve body; 2, flange plate; 3, valve cover; 4, valve core; 5, valve stem; 6, rotating disc; 7, positioning sleeve; 8, sealing element; 9, connecting bolt; 10, arc-shaped disc; 11, through hole; 12, valve seat; 13, sealing groove; 14, semicircular sealing ring; 15, sealing ring; 16, fixing groove; 17, fixing ring; 18, water through hole. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figures 1-5 An embodiment provided by the present application: a bidirectional sealing control valve, comprising a valve body 1 and a valve cover 3, the valve cover 3 is installed on the top of the valve body 1 through a plurality of connecting bolts 9, a valve seat 12 is screw-mounted in the middle of the inside of the valve body 1, a sealing element 8 is arranged at one end of the inside of the valve cover 3, a valve stem 5 is inserted in the middle of the sealing element 8, a screw thread is arranged on the outer surface of the upper half of the valve stem 5, a valve core 4 is fixedly arranged at one end of the valve stem 5, a positioning sleeve 7 is screw-mounted in the inside of the valve cover 3, the bottom end of the positioning sleeve 7 is attached to the top end of the sealing element 8, the valve stem 5 is screw-connected with the positioning sleeve 7, the valve cover 3 is separated from the valve body 1 by taking out the plurality of connecting bolts 9, and the valve seat 12 is screw-connected with the middle part of the valve body 1, so that the valve seat 12 can be quickly installed and disassembled, the valve stem 5 is taken out from the inside of the valve cover 3 by taking down the detachable rotating disc 6, and then the positioning sleeve 7 screw-connected in the inside of the valve cover 3 is taken down, because the pressure fixation of the sealing element 8 by the positioning sleeve 7 is lacking, the sealing element 8 can be taken out from the inside of the valve cover 3, so that the effect of quickly disassembling the entire control valve is realized, and the defect that the traditional integrated control valve is inconvenient to disassemble and replace the internal structure is solved.

[0033] The top end of the valve seat 12 is provided with a sealing groove 13, and the inner bottom end of the sealing groove 13 is fixedly provided with a semicircular sealing ring 14. The bottom end of the valve core 4 is integrally provided with a sealing ring 15, and the size and shape of the sealing ring 15 and the sealing groove 13 are matched. By providing the sealing groove 13 at the top end of the valve seat 12, the sealing ring 15 is integrally provided at the bottom end of the valve core 4, and the size and shape of the sealing ring 15 and the sealing groove 13 are matched. The sealing effect can be further improved on the basis of the sealing of the valve core 4 and the valve seat 12. The bottom end of the valve core 4 is integrally provided with an arc-shaped disc 10 through a rod. The surface of the arc-shaped disc 10 is uniformly provided with a plurality of through holes 11. The arc-shaped disc 10 provided with the through holes 11 at the bottom end of the valve core 4 can filter the flowing water after the valve core 4 is opened, thereby improving the quality of the water. The water inlet on both sides of the valve body 1 is integrally provided with a flange plate 2. The surface of the two flange plates 2 is provided with a group of flange holes. The water inlet on both sides of the valve body 1 is integrally provided with a flange plate 2. The surface of the two flange plates 2 is provided with a group of flange holes, thereby facilitating connection with the pipeline. The top end of the valve body 1 is provided with a fixing groove 16. The bottom end of the valve cover 3 is integrally provided with a fixing ring 17. The size of the fixing ring 17 and the fixing groove 16 is matched. The top end of the valve body 1 is provided with a fixing groove 16. The bottom end of the valve cover 3 is integrally provided with a fixing ring 17. The size of the fixing ring 17 and the fixing groove 16 is matched. The sealing effect between the valve body 1 and the valve cover 3 can be improved by the fit of the fixing ring 17 and the fixing groove 16. The middle part of the valve seat 12 is provided with a water inlet hole 18. The diameter of the water inlet hole 18 is slightly larger than that of the arc-shaped disc 10. The middle part of the valve seat 12 is provided with a water inlet hole 18, thereby facilitating the flow of water. The diameter of the water inlet hole 18 is slightly larger than that of the arc-shaped disc 10, thereby facilitating the upward movement of the arc-shaped disc 10. The top end of the valve rod 5 is fixedly installed with a rotating disc 6. The rotating disc 6 is designed to be detachable. The top end of the valve rod 5 is fixedly installed with a rotating disc 6. The rotating disc 6 is designed to be detachable. The valve rod 5 is conveniently rotated, and the rotating disc 6 is conveniently detached.

[0034] Working principle: by taking out a plurality of connecting bolts 9 so as to separate the valve cover 3 and the valve body 1, and the valve seat 12 and the middle part of the valve body 1 are threadedly connected, so that the valve seat 12 can be quickly installed and disassembled, the valve rod 5 is taken out from the valve cover 3 by taking down the detachable rotating disc 6, then the positioning sleeve 7 is taken down, and the sealing element 8 is taken out from the valve cover 3, so that the effect of quickly disassembling the whole control valve is realized, the defect that the traditional integrated control valve is inconvenient to disassemble and replace the internal structure is solved, the sealing groove 13 is arranged at the top end of the valve seat 12, the sealing ring 15 is integrally arranged at the bottom end of the valve core 4, the size and shape of the sealing ring 15 and the sealing groove 13 are matched, and the sealing effect is further improved on the basis of the sealing of the valve core 4 and the valve seat 12, the arc-shaped disc 10 provided with the through hole 11 is arranged at the lower end of the valve core 4, so that the flowing water can be filtered after the valve core 4 is opened, and the quality of the water body is improved.

[0035] Finally, it should be pointed out 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. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A bidirectional sealing control valve comprising a valve body (1) and a valve cover (3), characterized in that: The valve cover (3) is installed on the top of the valve body (1) through a plurality of connecting bolts (9), a valve seat (12) is installed in the middle of the inside of the valve body (1) in a threaded manner, a sealing element (8) is arranged at one end of the inside of the valve cover (3), the valve stem (5) is inserted in the middle of the sealing element (8), the outer surface of the upper half of the valve stem (5) is provided with threads, the valve core (4) is fixedly arranged at one end of the valve stem (5), the positioning sleeve (7) is installed in the inside of the valve cover (3) in a threaded manner, the bottom end of the positioning sleeve (7) is in abutment with the top end of the sealing element (8), and the valve stem (5) is connected with the positioning sleeve (7) in a threaded manner.

2. A bidirectionally sealed control valve according to claim 1, characterized in that: The top end of the valve seat (12) is provided with a sealing groove (13), and the inner bottom end of the sealing groove (13) is fixedly provided with a semicircular sealing ring (14); the bottom end of the valve core (4) is integrally provided with a sealing ring (15), and the size and shape of the sealing ring (15) are adapted to the sealing groove (13).

3. A bidirectionally sealed control valve according to claim 1, characterized in that: The bottom end of the valve core (4) is integrally provided with an arc-shaped disc (10) through a rod, and a plurality of through holes (11) are uniformly arranged on the surface of the arc-shaped disc (10).

4. A bidirectionally sealed control valve according to claim 1, characterized in that: The water inlet on both sides of the valve body (1) is integrally provided with a flange plate (2), and a group of flange holes are arranged on the surface of the two flange plates (2).

5. A bidirectionally sealed control valve according to claim 1, characterized in that: The top end of the valve body (1) is provided with a fixing groove (16), and the bottom end of the valve cover (3) is integrally provided with a fixing ring (17), and the size of the fixing ring (17) is adapted to the fixing groove (16).

6. A bidirectionally sealed control valve according to claim 1, characterized in that: The middle part of the valve seat (12) is provided with a water through hole (18), and the diameter of the water through hole (18) is slightly larger than that of the arc-shaped disc (10).

7. A bidirectionally sealed control valve according to claim 1, characterized in that: The top end of the valve stem (5) is fixedly provided with a rotating disc (6), and the rotating disc (6) is designed to be detachable.

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