Double-seal single-seat regulating valve

Abstract

The utility model belongs to the technical field of regulating valves, and particularly relates to a double-seal single-seat regulating valve which comprises a regulating valve body, a water inlet pipe internally communicated with the regulating valve body is fixedly mounted at the bottom of one side of the regulating valve body, and a water outlet pipe internally communicated with the regulating valve body is fixedly mounted at the top of the other side of the regulating valve body. A fixing plate, a water baffle and a supporting rod are arranged in the adjusting valve body, an adjusting groove is formed in the position, corresponding to the upper portion of the water baffle, of the inner wall of the adjusting valve body, and a sliding plate is installed in the adjusting groove in a sliding mode. The bottom of a supporting rod is attached to the top of a sliding plate, meanwhile, a sealing block seals a water outlet hole, a rotating ring continues to be rotated, the sliding plate moves downwards, a sealing plate is driven, the outer surface of the sealing plate is attached to the inner surface of a water baffle, a spring is extruded, and therefore double-layer sealing is conducted through the sealing plate and the sealing block; and the sealing performance of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a double-sealed single-seat regulating valve. Background Art

[0002] The single-seat regulating valve has a valve core and a valve seat in the valve body, which has the characteristics of small leakage. The valve has a large unbalanced force and its allowable pressure difference is smaller than that of the double-seat valve. The single-seat regulating valve consists of a pneumatic multi-spring diaphragm actuator and a low-flow resistance straight-through single-seat valve. The valve core of the regulating valve of the single-seat valve has a curved surface (such as a parabolic curved surface shape) for adjusting the percentage flow. The purpose of adjusting the flow size is achieved by adjusting the size of the flow area between the valve seat and the curved surface.

[0003] The existing technology has the following deficiencies: the prior art publication number CN217762084U states that “a multi-seal regulating valve” “comprises a main housing, a connecting pipe, and an upper plate, wherein grooves are provided at both left and right ends of the main housing, sealing rings are fixedly connected to the inner sides of both left and right ends of the main housing, sealing sleeves are fixedly connected to the outer sides of both left and right ends of the main housing, the outer ends of the connecting pipes on both sides are connected to the inner walls of the grooves, the left and right sides of the lower end curved surface of the main housing are fixedly connected to water tanks, clean water is provided inside the water tank, a float is provided inside the water tank, the upper end curved surface of the float is fixedly connected to a connecting rod, the outer end curved surface of the connecting rod is fixedly connected to a connecting rod, and the other end of the connecting rod passes through a slide groove of the water tank”;

[0004] When in use, the above-mentioned equipment uses the sealing ring, sealing sleeve, connecting pipe, float, connecting rod, warning light and other structures to make the sealing ring and sealing sleeve seal the connecting pipe. If the connection position leaks, water will flow into the water tank through the interface, causing the water level to rise and then activate the warning light alarm, realizing multi-layer sealing of the regulating valve and the ability to alarm when leaks, solving the problem of leakage caused by imperfect sealing structure of the regulating valve, but when the regulating valve is closed, a small amount of water stains still seep out, which needs to be improved. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a double-seal single-seat regulating valve to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-seal single-seat regulating valve, comprising a regulating valve body, an internally connected water inlet pipe fixedly installed on the bottom of one side of the regulating valve body, and an internally connected water outlet pipe fixedly installed on the top of the other side of the regulating valve body, a fixed plate, a water baffle and a support rod are provided inside the regulating valve body, an regulating groove is provided on the inner wall of the regulating valve body corresponding to the top of the water baffle, a slide is slidably installed inside the regulating groove, a first sealing assembly is provided below the slide, and a second sealing assembly is provided below the support rod.

[0007] As a preferred technical solution of the present invention, a fixing block is fixedly installed on the top of the fixing plate, and a plurality of through holes are opened on the top of the regulating valve body around the fixing block.

[0008] As a preferred technical solution of the present invention, the first sealing assembly includes a connecting block and a sealing plate. The connecting block is fixedly installed on the bottom of the skateboard corresponding to the center of the skateboard, and the sealing plate is fixedly installed on the bottom of the connecting block. The water retaining plate and the side corresponding to the skateboard are both inclined and adapted to each other.

[0009] As a preferred technical solution of the present invention, a first sliding rod is fixedly installed on the bottom of the sealing plate, the bottom of the first sliding rod passes through the fixed block and extends to the bottom of the fixed plate, and is slidably connected with the fixed plate and the fixed block, and grooves are respectively provided on the corresponding sides of the sealing plate and the fixed block, and a spring is sleeved on the outer side of the first sliding rod, and the two ends of the spring are respectively fixedly installed inside the two groups of grooves.

[0010] As a preferred technical solution of the present invention, a second slide rod is fixedly installed on the top of the skateboard, a slide groove is provided at the bottom of the support rod corresponding to the position of the second slide rod, the second slide rod is slidably installed inside the slide groove, and several groups of water outlet holes are provided on the top of the skateboard around the second slide rod, and the bottom of the water outlet hole is inclined.

[0011] As a preferred technical solution of the present invention, the second sealing assembly includes a connecting rod and a sealing block. The connecting rod is rotatably installed at the bottom of the support rod through a swivel corresponding to the position of the water outlet. A guide rod is fixedly installed at the bottom of the swivel. The guide rod passes through the slide and extends to the interior of the connecting block, and is slidably connected to the slide and the connecting block. The sealing block is fixedly installed at the bottom of the connecting rod and is adapted to the water outlet.

[0012] As a preferred technical solution of the present invention, the top of the support rod extends to the top of the regulating valve body and is threadedly connected to the regulating valve body, and a rotating ring is fixedly installed on the top of the support rod.

[0013] Compared with the prior art, the present invention provides a double-sealed single-seat regulating valve with the following features:

[0014] Beneficial effects:

[0015] 1. This double-seal single-seat regulating valve is equipped with a support rod, a first sealing assembly and a second sealing assembly. When closing the valve, the rotating ring is rotated in the opposite direction to drive the support rod to move downward, so that the bottom of the support rod fits with the top of the slide. At the same time, the sealing block closes the water outlet. The rotating ring is continued to be rotated to move the slide downward and drive the sealing plate so that the outer surface of the sealing plate fits with the inner surface of the water baffle and squeezes the spring, thereby performing double-layer sealing through the sealing plate and the sealing block, thereby improving the sealing performance of the device.

[0016] 2. This double-seal single-seat regulating valve is equipped with a second sliding rod and a sliding groove. When the support rod moves up and down, the second sliding rod slides inside the sliding groove, thereby limiting the support rod, so that the support rod and the slide are always concentric, preventing the sealing block from offsetting with the water outlet, which may cause the sealing to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from above;

[0020] Figure 4 For this utility model Figure 2 Structural diagram at A;

[0021] Figure 5 For this utility model Figure 2 Schematic diagram of the structure at point B.

[0022] In the figure: 1. regulating valve body; 2. water inlet pipe; 3. water outlet pipe; 4. fixing plate; 5. fixing block; 6. through hole; 7. water baffle; 8. adjusting groove; 9. slide plate; 10. connecting block; 11. sealing plate; 12. first slide bar; 13. groove; 14. spring; 15. water outlet; 16. support rod; 17. connecting rod; 18. sealing block; 19. second slide bar; 20. slide groove; 21. rotating ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5 In this embodiment: a double-seal single-seat regulating valve, a regulating valve body 1, an internally connected water inlet pipe 2 is fixedly installed on the bottom of one side of the regulating valve body 1, and an internally connected water outlet pipe 3 is fixedly installed on the top of the other side of the regulating valve body 1. A fixed plate 4, a water baffle 7 and a support rod 16 are provided inside the regulating valve body 1. An adjusting groove 8 is opened on the inner wall of the regulating valve body 1 corresponding to the top of the water baffle 7. A slide plate 9 is slidably installed inside the regulating groove 8. A first sealing assembly is provided under the slide plate 9 to seal the water baffle 7; a second sealing assembly is provided under the support rod 16 to seal the slide plate 9 to improve the sealing performance.

[0025] In this embodiment, the top of the fixed plate 4 is fixedly installed with a fixed block 5, and the top of the regulating valve body 1 is provided with several groups of through holes 6 around the fixed block 5; the first sealing assembly includes a connecting block 10 and a sealing plate 11, the connecting block 10 is fixedly installed at the bottom of the slide 9 corresponding to the center of the slide 9, and the sealing plate 11 is fixedly installed at the bottom of the connecting block 10, and the side corresponding to the water baffle 7 and the slide 9 are both inclined and adapted to each other. When the slide 9 moves downward, the sealing plate 11 is driven to move so that the outer surface of the sealing plate 11 fits with the inner surface of the water baffle 7, thereby sealing the water baffle 7; the bottom of the sealing plate 11 is fixedly installed The first slide bar 12, the bottom of the first slide bar 12 passes through the fixed block 5 and extends to the bottom of the fixed plate 4, and is slidably connected with the fixed plate 4 and the fixed block 5. A groove 13 is respectively provided on the side corresponding to the sealing plate 11 and the fixed block 5. The outer side of the first slide bar 12 is provided with a spring 14. The two ends of the spring 14 are respectively fixedly installed inside the two groups of grooves 13. By setting the spring 14, when the pressure of the spring 14 is released, the sealing plate 11 can be pushed to move upward, so that the sealing plate 11 is separated from the water retaining plate 7; the top of the slide plate 9 is fixedly installed with a second slide bar 19, and the bottom of the support rod 16 corresponds to the position of the second slide bar 19. The second slide bar 19 is slidably mounted inside the slide bar 20. A plurality of water outlet holes 15 are provided on the top of the slide plate 9 around the second slide bar 19. The lower portion of the water outlet hole 15 is tilted. By setting the second slide bar 19 and the slide bar 20, it is convenient to limit the support rod 16 and the slide plate 9 to prevent the sealing block 18 from offsetting from the water outlet hole 15, thereby preventing the sealing from being completed. The second sealing assembly includes a connecting rod 17 and a sealing block 18. The connecting rod 17 is rotatably mounted on the bottom of the support rod 16 through a swivel 22 corresponding to the position of the water outlet hole 15. A guide rod is fixedly mounted on the bottom of the swivel 22, and the guide rod passes through the slide plate. 9 extends to the interior of the connecting block 10 and is slidably connected to the slide plate 9 and the connecting block 10. The sealing block 18 is fixedly mounted on the bottom of the connecting rod 17 and is adapted to the water outlet 15. When the support rod 16 moves downward, the sealing block 18 is driven to move, thereby closing the water outlet 15 through the sealing block 18; the top of the support rod 16 extends to the top of the regulating valve body 1 and is threadedly connected to the regulating valve body 1. The top of the support rod 16 is fixedly mounted with a rotating ring 21, and the support rod 16 is driven to rotate by rotating the rotating ring 21, so as to facilitate the movement of the slide plate 9 up and down, thereby facilitating the opening or closing of the valve of the device.

[0026] The working principle and usage process of the present invention are as follows: when in use, the supporting rod 16 is driven upward by rotating the rotating ring 21, so that the sealing block 18 is separated from the inside of the water outlet hole 15. At the same time, the pressure of the spring 14 is released, pushing the sealing plate 11 upward, so that the sealing plate 11 is separated from the water baffle 7, and driving the slide plate 9 to slide inside the adjusting groove 8, so that the top of the slide plate 9 fits with the top of the adjusting groove 8, thereby completing the valve opening. When closing the valve, the rotating ring 21 is rotated in the opposite direction, driving the supporting rod 16 downward, so that the bottom of the supporting rod 16 fits with the top of the slide plate 9, and the sealing block 18 closes the water outlet hole 15. Continue to rotate the rotating ring 21 to move the slide plate 9 downward and drive the sealing plate 11 so that the outer surface of the sealing plate 11 fits with the inner surface of the water baffle 7, and squeeze the spring 14, thereby performing a double-layer seal through the sealing plate 11 and the sealing block 18, thereby improving the sealing performance of the device.

[0027] Finally, it should be noted that the above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A double-sealed single-seat regulating valve, comprising a regulating valve body (1), wherein an internally connected water inlet pipe (2) is fixedly mounted on the bottom of one side of the regulating valve body (1), and an internally connected water outlet pipe (3) is fixedly mounted on the top of the other side of the regulating valve body (1), characterized in that: A fixing plate (4), a water baffle (7) and a support rod (16) are provided inside the regulating valve body (1); an adjusting groove (8) is provided on the inner wall of the regulating valve body (1) corresponding to the upper side of the water baffle (7); A slide plate (9) is slidably mounted inside the adjustment groove (8), a first sealing assembly is provided below the slide plate (9), and a second sealing assembly is provided below the support rod (16).

2. A double-seal single-seat regulating valve according to claim 1, wherein a fixing block (5) is fixedly installed on the top of the fixing plate (4), and a plurality of groups of through holes (6) are opened around the fixing block (5) on the top of the regulating valve body (1).

3. A double-seal single-seat regulating valve according to claim 1, wherein the first sealing assembly includes a connecting block (10) and a sealing plate (11), the connecting block (10) is fixedly mounted on the bottom of the slide (9) at the center corresponding to the slide (9), the sealing plate (11) is fixedly mounted on the bottom of the connecting block (10), and the water retaining plate (7) and the side corresponding to the slide (9) are both inclined and adapted to each other.

4. A double-seal single-seat regulating valve according to claim 3, wherein a first slide rod (12) is fixedly installed at the bottom of the sealing plate (11), the bottom of the first slide rod (12) passes through the fixed block (5) and extends to the bottom of the fixed plate (4), and is slidably connected to the fixed plate (4) and the fixed block (5), and grooves (13) are respectively provided on the corresponding sides of the sealing plate (11) and the fixed block (5), and a spring (14) is sleeved on the outer side of the first slide rod (12), and the two ends of the spring (14) are respectively fixedly installed inside the two groups of grooves (13).

5. A double-seal single-seat regulating valve according to claim 1, wherein a second slide rod (19) is fixedly installed on the top of the slide plate (9), a slide groove (20) is provided at the bottom of the support rod (16) corresponding to the position of the second slide rod (19), and the second slide rod (19) is slidably installed inside the slide groove (20), and a plurality of water outlet holes (15) are provided on the top of the slide plate (9) around the second slide rod (19), and the bottom of the water outlet hole (15) is inclined.

6. A double-seal single-seat regulating valve according to claim 1, wherein the second sealing assembly includes a connecting rod (17) and a sealing block (18), the connecting rod (17) is rotatably installed at the bottom of the support rod (16) corresponding to the position of the water outlet (15) through a swivel (22), and a guide rod is fixedly installed at the bottom of the swivel (22), the guide rod passes through the slide (9) and extends to the interior of the connecting block (10), and is slidably connected to the slide (9) and the connecting block (10), and the sealing block (18) is fixedly installed at the bottom of the connecting rod (17) and is adapted to the water outlet (15).

7. A double-seal single-seat regulating valve according to claim 1, wherein the top of the support rod (16) extends to the top of the regulating valve body (1) and is threadedly connected to the regulating valve body (1), and a rotating ring (21) is fixedly installed on the top of the support rod (16).

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