Low-resistance valve made of high-strength wear-resistant material

Abstract

The utility model discloses a high-strength wear-resistant material low-resistance valve, which particularly relates to the technical field of valves, and comprises a valve body, a valve cavity is arranged in the middle of the valve body, sealing rings are symmetrically embedded on two sides of an inner cavity of the valve cavity, a valve core is arranged in the middle of the valve cavity, and the top of the valve core is fixedly connected with a valve rod. By means of the speed reduction groove, when liquid is about to enter the valve body, the impact force of water flow can be reduced by increasing the passing area of the water flow, the impact force of the water flow can act on the wear-resistant ring through the wear-resistant ring, the wear resistance of the valve body is improved through the wear-resistant ring, and the service life of the valve body is prolonged. The impact force of liquid is prevented from directly acting on the valve element, the protection effect on the valve element is achieved, meanwhile, speed-reduced water flow can be gathered through the wear-resisting ring, the speed of the water flow is recovered, impact force cannot be generated on the valve element, the service life of the valve element is prolonged, abrasion of the valve body and the valve element is avoided, resistance cannot be generated on the water flow, and the service life of the valve element is prolonged. And the effect of low resistance is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field more specifically, the utility model relates to a kind of low-resistance valve of high-strength wear-resistant material. BACKGROUND

[0002] Valve is usually composed of valve body, valve cover, valve seat, opening and closing element, driving mechanism, sealing and fastener, and the control function of valve is realized by driving mechanism or fluid to lift, slide, swing or rotate opening and closing element to change the size of flow passage area, and valve is also divided into cast iron valve, cast steel valve, stainless steel valve, chromium-molybdenum steel valve, chromium-molybdenum-vanadium steel valve, duplex steel valve, plastic valve and non-standard customized valve according to material.

[0003] In the use of heating system, the material of ordinary valve is prone to valve body and valve core wear and corrosion when subjected to high temperature and high pressure and impurity-containing hot water for a long time, which leads to the decline of sealing performance of valve and the shortening of service life, and at the same time, liquid is prone to directly washing on valve core during opening and closing process, forming concentrated impact force, like high-speed water flow impacting fragile dam, so that valve core suffers abnormal serious wear, and when opening, water flow will form turbulence and vortex due to sudden cross-section change and corner turning when passing through valve cavity, which produces large water flow resistance, affecting the efficiency of heating system, therefore a low-resistance valve of high-strength wear-resistant material is proposed. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a low-resistance valve of high-strength wear-resistant material to solve the problems proposed in the above background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a low-resistance valve of high-strength wear-resistant material, comprising a valve body, a valve cavity is arranged in the middle of the valve body, sealing rings are symmetrically embedded on both sides of the inner cavity of the valve cavity, a valve core is arranged in the middle of the valve cavity, a valve rod is fixedly connected to the top of the valve core, a rotating disc is fixedly connected to the top of the valve rod, rotating the rotating disc controls the valve rod to drive the valve core to rotate, the opening and closing can be controlled, and the sealing strength during plugging is improved through the sealing ring, water grooves are symmetrically arranged on both sides of the valve body;

[0006] The middle part of the valve rod is fixedly connected with a limiting plate, a first positioning groove is formed in the top of the limiting plate, a limiting groove is formed in the middle part of the valve body corresponding to the limiting plate, two top rods are inserted into the inner cavity of the limiting groove, springs are arranged at the top ends of the top rods, one end of the top rod is inserted into the first positioning groove through the pushing of the spring, the position of the limiting plate is fixed, the position of the valve core is fixed through the rotation of the valve rod to control the sliding of the limiting plate in the limiting groove, the first positioning groove is fixed with the other top rod, and the opening and closing use is facilitated.

[0007] The two sides of the valve body are symmetrically provided with combination blocks, a speed reduction groove is formed in one side of the combination block, a wear-resistant ring is arranged in the inner cavity of one water collecting groove and the middle part of one speed reduction groove, a positioning block is fixedly connected to one side of the wear-resistant ring, and a second positioning groove is formed in the middle part of the water collecting groove and the speed reduction groove corresponding to the positioning block. Through the cooperation of the speed reduction groove, the liquid entering the valve body through the connecting rod first passes through the speed reduction groove to increase the liquid passing amount, thereby reducing the impact force of the liquid on the valve core, playing a role of speed reduction, and the wear-resistant ring is used for collecting the speed-reduced liquid and passing through the middle part of the valve core, avoiding impact on the valve core, reducing the resistance effect, improving the overall strength, improving the wear resistance through the wear-resistant ring, and fixing the position of the wear-resistant ring through the cooperation of the second positioning groove and the positioning block, facilitating the combined installation and use.

[0008] Preferably, the cross-sectional shape of the limiting groove is set as a fan-shaped structure, two top rods are arranged at the top of the limiting groove, a hemispherical mechanism is arranged on the bottom wall of the top rod, a limiting plate is fixedly connected to the top end of the top rod, and one end of the top rod is matched with the first positioning groove. The moving position of the limiting plate is limited by the limiting groove, and the position of the valve core is fixed.

[0009] Preferably, a plug rod is inserted into one side of the rotating disc, a limiting disc and a ball are fixedly connected to the two ends of the plug rod, and the rotating disc is arranged at the top of the valve body. By pulling the plug rod, the rotating disc is conveniently rotated, and the resistance to rotation is reduced.

[0010] Preferably, the opening of the speed reduction groove is matched with the opening of the water collecting groove, the speed reduction groove and the water collecting groove are arranged in an arc-shaped structure, the sealing ring is tightly attached to the valve core, and the positioning block is arranged in the middle part of the second positioning groove. Through the cooperation of the speed reduction groove and the water collecting groove, the liquid in the inner cavities of the speed reduction groove and the water collecting groove is reduced in speed, the impact force is reduced, and the periphery of the valve core is sealed by the sealing ring.

[0011] Preferably, two said wear-resistant rings are arranged on both sides of the valve body respectively, the side of the wear-resistant ring close to the inner cavity of the water collecting groove is arranged as the water inlet end, the wall of the wear-resistant ring is matched with the inner cavity of the water collecting groove and the speed reducing groove, the wear-resistant ring is limited by the water collecting groove, the wear-resistant ring plays a wear-resistant role, the impact force of the liquid entering the speed reducing groove is applied on the wear-resistant ring, the impact force on the valve body wall is reduced, and the wear-resistant strength is improved.

[0012] Preferably, one side of the combination block is fixedly connected with a positioning ring, the valve body is symmetrically provided with an annular groove on both sides, the positioning ring is matched with the annular groove, the positioning ring is arranged at the middle part of the annular groove, the combination and assembly strength of the combination block and the valve body is improved through the cooperation of the positioning ring and the annular groove, and the combination connection is facilitated.

[0013] Preferably, one side of the combination block is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a connecting flange, a plurality of screw rods are symmetrically arranged around the combination block, screw holes are symmetrically arranged on both sides of the valve body in positions corresponding to the screw rods, and one end of the screw rod extends into the screw hole. Through the cooperation of the screw hole and the screw rod, the combination block and the valve body are combined and fixed, and installation and use are facilitated.

[0014] The technical effects and advantages of the utility model are as follows:

[0015] 1. The utility model discloses a speed reducing groove, which can reduce the impact force of water flow when the liquid enters the valve body, and the impact force of water flow is applied on the wear-resistant ring through the wear-resistant ring, the wear-resistant property of the valve body is improved through the wear-resistant ring, the impact force of the liquid is not directly applied on the valve core, the valve core is protected, the water flow is gathered through the wear-resistant ring, the water flow speed is recovered, the impact force of the valve core is not generated, the service life of the valve core is improved, the valve body and the valve core are not abraded, the water flow is not blocked, and low resistance is realized.

[0016] 2. The utility model discloses a combination block and a valve body are combined and fixed through a screw rod and a screw hole, the wear-resistant ring can be replaced when the wear-resistant ring is seriously abraded, the installation position of the wear-resistant ring is positioned through the cooperation of the second positioning groove and the positioning block, the combination strength is improved, the rotation of the rotating disc is facilitated through the combination block, the rotation position of the limiting plate is fixed through the cooperation of the jacking rod and the first positioning groove, and the stability of the valve core is improved.

[0017] In summary, through the cooperation of the speed reducing groove and the wear-resistant ring, the impact force of water flow on the valve body and the valve core is reduced, the valve body and the valve core are protected, the water flow is not blocked, low resistance is realized, and the wear-resistant effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.

[0020] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0021] Figure 4 This is a schematic diagram of the split cross-sectional structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the valve body of this utility model.

[0023] The attached diagram is labeled as follows: 1. Valve body; 2. Valve cavity; 3. Sealing ring; 4. Valve core; 5. Valve stem; 6. Turntable; 7. Limiting plate; 8. First positioning groove; 9. Limiting groove; 10. Top rod; 11. Spring; 12. Water collection groove; 13. Combination block; 14. Speed ​​reduction groove; 15. Second positioning groove; 16. Wear-resistant ring; 17. Positioning block; 18. Insert rod; 19. Positioning ring; 20. Annular groove; 21. Connecting rod; 22. Connecting flange; 23. Screw hole; 24. Screw. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] As attached Figures 1-5 The valve shown is a high-strength wear-resistant material low-resistance valve, including a valve body 1, a valve cavity 2 in the middle of the valve body 1, sealing rings 3 symmetrically embedded on both sides of the inner cavity of the valve cavity 2, a valve core 4 in the middle of the valve cavity 2, a valve stem 5 fixedly connected to the top of the valve core 4, a turntable 6 fixedly connected to the top of the valve stem 5, rotating the turntable 6 controls the valve stem 5 to drive the valve core 4 to rotate, which can control the opening and closing, and improve the sealing strength when blocking through the sealing rings 3. Water collection grooves 12 are symmetrically opened on both sides of the valve body 1.

[0026] The middle part of the valve rod 5 is fixedly connected with a limiting plate 7, the top of the limiting plate 7 is provided with a first positioning groove 8, the middle part of the valve body 1 is provided with a limiting groove 9 corresponding to the limiting plate 7, the inner cavity of the limiting groove 9 is provided with two top rods 10, the top end of the top rod 10 is provided with a spring 11, the two sides of the valve body 1 are symmetrically provided with combination blocks 13, one side of the combination block 13 is provided with a speed reduction groove 14, the inner cavity of one water collecting groove 12 and the middle part of one speed reduction groove 14 are provided with wear-resistant rings 16, one side of the wear-resistant ring 16 is fixedly connected with a positioning block 17, the middle part of the water collecting groove 12 and the speed reduction groove 14 are provided with second positioning grooves 15 corresponding to the positioning block 17, one end of the top rod 10 is inserted into the first positioning groove 8 through the pushing of the spring 11, the position of the limiting plate 7 can be fixed, the position of the valve core 4 can be fixed through the rotation of the valve rod 5 to control the sliding of the limiting plate 7 in the limiting groove 9, the first positioning groove 8 is fixed with the other top rod 10, the opening and closing use is convenient, the liquid enters the valve body 1 through the connecting rod 21, first passes through the speed reduction groove 14 to increase the liquid passing amount, so as to reduce the impact force of the liquid on the valve core 4, plays a role of speed reduction, and the wear-resistant ring 16 is used for gathering the speed-reduced liquid and passing through the middle part of the valve core 4, avoiding the impact on the valve core 4, reducing the resistance effect, improving the overall strength, improving the wear resistance through the wear-resistant ring 16, and the position of the wear-resistant ring 16 can be fixed through the cooperation of the second positioning groove 15 and the positioning block 17, facilitating the combined installation and use.

[0027] As shown in the accompanying drawings Figures 1-5As shown, the cross-sectional shape of the limiting groove 9 is set as a fan-shaped structure, two top rods 10 are respectively arranged at the top of the two sides of the limiting groove 9, the bottom wall of the top rod 10 is provided with a hemispherical mechanism, the top end of the top rod 10 is fixedly connected with a limiting plate, one end of the top rod 10 is matched with the first positioning groove 8, one side of the rotating disc 6 is provided with a plug rod 18, the two ends of the plug rod 18 are respectively fixedly connected with a limiting disc and a ball, the rotating disc 6 is arranged at the top of the valve body 1, the opening of the speed reduction groove 14 and the opening of the water collecting groove 12 are matched, the speed reduction groove 14 and the water collecting groove 12 are all arranged as arc-shaped structures, the sealing ring 3 is closely combined with the valve core 4, the positioning block 17 is arranged at the middle part of the second positioning groove 15, two wear-resistant rings 16 are respectively arranged at the two sides of the valve body 1, the side of the wear-resistant ring 16 close to the inner cavity of the water collecting groove 12 is arranged as a water inlet end, the wall of the wear-resistant ring 16 is matched with the inner cavities of the water collecting groove 12 and the speed reduction groove 14, one side of the combined block 13 is fixedly connected with a positioning ring 19, the two sides of the valve body 1 are symmetrically provided with annular grooves 20, the positioning ring 19 and the annular groove 20 are matched, the positioning ring 19 is arranged at the middle part of the annular groove 20, one side of the combined block 13 is fixedly connected with a connecting rod 21, one end of the connecting rod 21 is fixedly connected with a connecting flange 22, the four peripheries of the combined block 13 are symmetrically provided with screw rods 24, the positions corresponding to the screw rods 24 of the two sides of the valve body 1 are symmetrically provided with screw holes 23, one end of the screw rod 24 extends to the inside of the screw hole 23, the moving position of the limiting plate 7 is limited through the limiting groove 9, the position of the valve core 4 can be conveniently fixed, the rotating disc 6 is conveniently rotated by pulling the plug rod 18, the rotating resistance is reduced, the liquid in the inner cavities of the speed reduction groove 14 and the water collecting groove 12 is reduced in speed through the cooperation of the speed reduction groove 14 and the water collecting groove 12, the impact force is reduced, and the four peripheries of the valve core 4 are sealed through the sealing ring 3, the wear-resistant ring 16 is limited through the water collecting groove 12, the wear-resistant ring 16 plays a wear-resistant role, the impact force of the liquid entering the inside of the speed reduction groove 14 acts on the wear-resistant ring 16, the impact force on the wall of the valve body 1 is reduced, the wear-resistant strength is improved, the cooperation and combination strength of the combined block 13 and the valve body 1 is improved through the cooperation of the positioning ring 19 and the annular groove 20, the combined connection is convenient, the combined block 13 and the valve body 1 are conveniently combined and fixed through the cooperation of the screw hole 23 and the screw rod 24, and the installation and use are convenient.

[0028] The utility model discloses a working principle: when the through hole of valve core 4 is communicated with two water collecting grooves 12, liquid enters the inside of speed reduction groove 14 through connecting rod 21 and is reduced in speed through speed reduction groove 14, and the liquid impact force acts on wear-resistant ring 16, plays the wear-resistant role to valve body 1, and restores the liquid flow rate through the middle through hole of valve core 4, plays the role of reducing liquid flow resistance.

[0029] Pulling the plug 18 auxiliary rotating disc 6, can reduce the rotating resistance of rotating disc 6, make the limit plate 7 with the rotating valve stem 5 rotating inside the limit groove 9, through the limit groove 9 to limit plate 7 rotating angle limit, and through the top rod 10 card in the first positioning groove 8 inside the limit plate 7 position fixed, so as to realize the position fixed to the valve core 4, improve the use effect;

[0030] In use, the two sides of the valve core 4 are sealed by the sealing ring 3, the wear-resistant ring 16 is limited by the cooperation of the second positioning groove 15 and the positioning block 17, and when the wear-resistant ring 16 is severely worn, it can be removed by the screw rod 24, the combined block 13 and the valve body 1 are disassembled, so that the wear-resistant ring 16 is replaced, and the combination strength of the valve body 1 and the combined block 13 is improved by the positioning ring 19 and the annular groove 20, thereby improving the use effect.

[0031] The above only for the preferred embodiments of the present application, and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A high-strength, abrasion-resistant, low-resistance valve comprising a valve body (1), characterized in that: The middle part of the valve body (1) is provided with a valve cavity (2), the inner cavity of the valve cavity (2) is symmetrically embedded with a sealing ring (3) on both sides, the middle part of the valve cavity (2) is provided with a valve core (4), the top of the valve core (4) is fixedly connected with a valve rod (5), the top of the valve rod (5) is fixedly connected with a rotating disc (6), and the both sides of the valve body (1) are symmetrically provided with a water collecting groove (12). The middle part of the valve rod (5) is fixedly connected with a limiting plate (7), the top of the limiting plate (7) is provided with a first positioning groove (8), the middle part of the valve body (1) is provided with a limiting groove (9) corresponding to the limiting plate (7), the inner cavity of the limiting groove (9) is inserted with two top rods (10), and the top end of the top rod (10) is provided with a spring (11). The both sides of the valve body (1) are symmetrically provided with a combination block (13), one side of the combination block (13) is provided with a speed reduction groove (14), the inner cavity of one of the water collecting grooves (12) and the middle part of one of the speed reduction grooves (14) are provided with a wear-resistant ring (16), one side of the wear-resistant ring (16) is fixedly connected with a positioning block (17), and the middle part of the water collecting groove (12) and the speed reduction groove (14) is provided with a second positioning groove (15) corresponding to the positioning block (17).

2. A low resistance valve of high strength, abrasion resistant material as claimed in claim 1 wherein: The cross section shape of the limiting groove (9) is provided as a fan structure, two top rods (10) are respectively arranged at the top of the both sides of the limiting groove (9), the bottom wall of the top rod (10) is provided with a hemispherical mechanism, the top end of the top rod (10) is fixedly connected with a limiting plate, and one end of the top rod (10) is matched with the first positioning groove (8).

3. A low resistance valve of high strength, abrasion resistant material as claimed in claim 1, wherein: One side of the rotating disc (6) is inserted with a plug rod (18), the both ends of the plug rod (18) are fixedly connected with a limiting disc and a ball, and the rotating disc (6) is arranged at the top of the valve body (1).

4. A low resistance valve of high strength, abrasion resistant material as claimed in claim 1, wherein: The opening of the speed reduction groove (14) is matched with the opening of the water collecting groove (12), the speed reduction groove (14) and the water collecting groove (12) are provided as arc structures, the sealing ring (3) is tightly combined with the valve core (4), and the positioning block (17) is arranged in the middle part of the second positioning groove (15).

5. A low resistance valve of high strength, abrasion resistant material as claimed in claim 1, wherein: Two wear-resistant rings (16) are respectively arranged at the both sides of the valve body (1), one side of the wear-resistant ring (16) close to the inner cavity of the water collecting groove (12) is provided as a water inlet end, and the wall of the wear-resistant ring (16) is matched with the inner cavities of the water collecting groove (12) and the speed reduction groove (14).

6. A low resistance valve of high strength, abrasion resistant material as claimed in claim 1, wherein: One side of the combination block (13) is fixedly connected with a positioning ring (19), the both sides of the valve body (1) are symmetrically provided with an annular groove (20), the positioning ring (19) is matched with the annular groove (20), and the positioning ring (19) is arranged in the middle part of the annular groove (20).

7. A low resistance valve of high strength, abrasion resistant material as claimed in claim 1, wherein: One side of the combination block (13) is fixedly connected with a connecting rod (21), one end of the connecting rod (21) is fixedly connected with a connecting flange (22), four around the combination block (13) are symmetrically inserted with screw rods (24), both sides of the valve body (1) are symmetrically provided with screw holes (23) corresponding to the screw rods (24), one end of the screw rod (24) extends to the inside of the screw hole (23).

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