Leakage self-checking type anti-freezing valve for water conveying pipeline

Abstract

The leakage self-detection type anti-freezing valve for the water conveying pipeline relates to the technical field of valves and comprises a valve body, fixed inner hoses are connected to the centers of the left side and the right side of the valve body in a penetrating mode, butt joint outer pipes are further fixedly connected to the left side and the right side of the valve body, and the fixed inner hoses are located on the inner sides of the butt joint outer pipes; the butt joint ring is fixedly connected to the outer end of the butt joint outer pipe. According to the leakage self-detection type anti-freezing valve for the water conveying pipeline, the butt joint portion of the butt joint inner hose and the fixed inner hose is located in the butt joint ring, when liquid leakage occurs to the butt joint portion of the butt joint inner hose and the fixed inner hose due to butt joint loosening, leaked liquid can drop onto the water absorption sponge, and at the moment, the gravity of the water absorption sponge is increased; when the valve leaks, the connecting plate is extruded to move downwards, the connecting plate moves downwards and drives the electrode plate arranged at the bottom to make contact with the alarm, the alarm gives an alarm, a user is reminded of the leakage phenomenon of the valve, and then the valve is maintained.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a leakage self-detection antifreeze valve for a water pipeline. Background Art

[0002] Valves are key control components in fluid delivery systems. They are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control parameters of the delivery medium (such as temperature, pressure, and flow). Valves have the characteristics of diverse structures, complete functions, and a wide range of applications. They can adapt to different fluid media, pressures, temperatures, and flow requirements.

[0003] When the valve is used in a relatively cold environment, the liquid inside the valve will be affected by the external environment and frozen, causing the valve stem to freeze and become unusable, or even causing the valve pipe to rupture, which has certain limitations.

[0004] In order to overcome the above defects, prior art 1 (publication number: CN113898762A, Chinese patent published on 2022-01-07) is an antifreeze valve, in which the through hole is a T-shaped hole, and the end of the rotating column away from the control ball penetrates the horizontal tube and extends to the outside of the horizontal tube. When the three-way valve needs to drain the water between the faucet and the valve to maintain air circulation, the rotating column is rotated, and the rotating column drives the control ball to rotate, so that the through hole rotates to Figure 3 In the state shown, the water between the faucet and the valve will be discharged to prevent freezing due to excessive cold weather.

[0005] There is also prior art 2 (publication number: CN113883328B, a Chinese patent with a publication date of 2024-03-19) an antifreeze valve, in which a thawing mechanism for thawing the valve body mechanism is provided in the valve body mechanism. When the main valve shaft is frozen, the spare valve shaft is rotated to open the through holes of the spare water inlet chamber and the spare water outlet chamber, so that the valve body can continue to be used when it is frozen. The water in the spare water inlet chamber is introduced into the defrosting water tank through the defrosting connecting groove, and the sealing ring on the main valve shaft and the ice on the inner wall of the main movable groove are flushed through the through hole to defrost, so that the running water will flush open the sealing ring frozen to the main movable groove, so that the main valve shaft can be used normally.

[0006] Although the existing technologies 1 and 2 can perform antifreeze treatment on the valve, the valve cannot automatically detect leakage at the joint between the valve and the pipeline during use. When leakage occurs at the joint, the user cannot discover it in time, which will affect the subsequent normal use of the valve.

[0007] Therefore, we propose a leakage self-checking antifreeze valve for water pipelines to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to provide a self-detecting antifreeze valve for water pipelines to solve the problem in the market that the valve and pipeline docking point cannot be leak-detected by itself, and the user cannot find out in time, which affects the subsequent normal use of the valve.

[0009] To achieve the above object, the present invention provides the following technical solution: a self-checking antifreeze valve for a water pipeline, comprising a valve body, wherein a fixed inner hose is connected through the center of the left and right sides of the valve body, and a butt-jointed outer tube is also fixedly connected to the left and right sides of the valve body, and the fixed inner hose is located on the inner side of the butt-jointed outer tube;

[0010] A docking ring, wherein the docking ring is fixedly connected to the outer end of the docking outer tube, the outer end of the fixed inner hose is docked with the docking inner hose, and a detection mechanism for detecting leakage is arranged on the inner side of the docking ring;

[0011] The guide column is connected to the lower surface of the valve body through the guide column, and an auxiliary cavity is arranged on the guide column, and a discharge mechanism capable of discharging residual water flow of the valve body is arranged inside the guide column.

[0012] Preferably, the detection mechanism includes a connecting plate, which is nested at the inner lower position of the docking ring, and a water-absorbing sponge is fixedly connected to the upper surface of the connecting plate, and a first spring is fixedly connected between the lower surface of the connecting plate and the inner wall of the docking ring, an alarm is fixedly connected to the lower side of the docking ring, and an electrode sheet is fixedly connected at the center of the lower surface of the connecting plate.

[0013] Preferably, the docking point between the fixed inner hose and the docking inner hose is located on the inner side of the docking ring, the absorbent sponge is located directly below the docking point, and the electrode sheet is located directly above the alarm.

[0014] Preferably, the connecting plate is arranged in an arc shape in a side view, and the connecting plate forms an elastic structure with the docking ring through the first spring, and the connecting plate forms a sliding structure with the docking ring through the water-absorbing sponge.

[0015] Preferably, a limiting slide groove is provided on the outer side of the butt outer tube, and a motor is fixedly connected to the inner side of the limiting slide groove, and the motor is electrically connected to the alarm;

[0016] The output end of the motor is fixedly connected with a threaded rod, and the other end of the threaded rod is nested and connected inside the limiting sliding groove, and the outer side of the threaded rod is threadedly connected with an internal thread block, and the internal thread block is nested and connected inside the limiting sliding groove;

[0017] The outer end of the internal thread block is fixedly connected with an adjusting ring, and the inner side of the adjusting ring is fixedly connected with a cutting rod, the upper part of the butt joint outer tube is nested with an adjusting rod, and the inner end of the adjusting rod is fixedly connected with a zigzag pressure plate, and a second spring is fixedly connected between the upper surface of the zigzag pressure plate and the inner wall of the butt joint outer tube;

[0018] A planting slot is provided inside the planting rod, and the outer end of the planting rod is nested and connected inside the planting slot.

[0019] Preferably, the adjusting rods are vertically symmetrically arranged in two groups about the center point of the docking outer tube, the bending directions of the bending pressure plates are the same, and the insertion slots are inclined.

[0020] Preferably, the insertion rod forms a sliding structure through an adjusting ring, and the adjusting rod forms a sliding structure with the butt outer tube through the insertion slot.

[0021] Preferably, the discharge mechanism comprises an air supply column, which is arranged through the upper surface of the valve body, and an air supply rod is nested and connected inside the air supply column;

[0022] A limiting rod is fixedly connected inside the guide column, and a movable plug is nested and connected outside the limiting rod, and a third spring is fixedly connected between the lower surface of the movable plug and the inner wall of the guide column, and a drainage hole is opened on the lower surface of the guide column.

[0023] Preferably, the diameter of the auxiliary cavity is larger than the maximum diameter of the movable plug, and the movable plug forms an elastic structure with the guide column through the third spring.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The fixed inner hose and the valve body are connected to each other to form a complete valve. At the same time, a docking outer tube is arranged on the outside of the fixed inner hose. The docking outer tube can protect the fixed inner hose used for conveying water flow inside to prevent the fixed inner hose from being damaged by the external environment;

[0026] (2) The docking portion between the docking inner hose and the fixed inner hose is located inside the docking ring. When the docking portion between the docking inner hose and the fixed inner hose is loose and liquid leaks, the leaked liquid will drip onto the absorbent sponge. At this time, the gravity of the absorbent sponge itself increases, thereby squeezing the connecting plate to move downward. At this time, the connecting plate moves downward and drives the electrode sheet set at the bottom to contact the alarm. At this time, the alarm sounds, thereby reminding the user that the valve is leaking, and then the valve is repaired;

[0027] (3) After the alarm sounds, the motor will be started synchronously, and the motor will drive the threaded rod to rotate. At this time, the internal thread block will move within the limiting slide groove under the driving action of the thread of the threaded rod, and the internal thread block will drive the adjustment ring to move stably. During the movement of the adjustment ring, it will synchronously drive the insertion rod to move horizontally, so that the insertion rod can be docked and inserted into the insertion slot. Since the insertion slot is designed to be inclined, the adjustment rod will drive the zigzag pressure plate to move toward the side of the fixed inner hose under the action of the insertion rod, thereby squeezing the fixed inner hose, slowing down the flow of water, and facilitating subsequent maintenance and processing;

[0028] (4) When the valve maintenance is completed, the motor can be started to drive the insertion rod to reset. At this time, the adjusting rod is not squeezed. Driven by the elastic force of the second spring, the adjusting rod will pop outward and reset, so that the zigzag pressure plate will not squeeze the fixed inner hose, and the water flow can flow normally;

[0029] (5) When the external ambient temperature is low, the valve can be closed and the air supply rod can be manually pressed to move the air supply rod along the air supply column. At this time, the air supply rod and the air supply column can be used to supply air and increase pressure to the interior of the valve body. The pressure inside the valve body increases, thereby squeezing the movable plug to move along the limit rod toward the interior of the guide column. When the movable plug moves to the auxiliary cavity position, the movable plug does not contact the inner wall of the guide column. At this time, the movable plug cannot block the water flow inside the valve body. The water flow inside the valve body flows into the guide column and is discharged outward through the drainage hole. No water flow is stored inside the valve body, further reducing the phenomenon of valve body jamming due to water freezing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a front view structural schematic diagram of the present invention;

[0031] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention;

[0032] Figure 3 It is a schematic diagram of the front cross-sectional structure of the docking ring of the present invention;

[0033] Figure 4 This is a front view structural diagram of the connecting plate of the present invention;

[0034] Figure 5 This is a schematic diagram of the front view structure of the first spring of the present invention;

[0035] Figure 6 This is a schematic diagram of the front view structure of the adjustment ring of the present invention;

[0036] Figure 7 This is a schematic diagram of the front view structure of the curved pressing plate of the present invention;

[0037] Figure 8It is a schematic diagram of the front cross-sectional structure of the adjusting rod of the present invention;

[0038] Fig. 9 It is a schematic diagram of the front cross-sectional structure of the gas supply column of the present invention;

[0039] Fig.10 It is a schematic diagram of the front cross-sectional structure of the guide column of the present invention.

[0040] In the figure: 1. valve body; 2. docking outer tube; 3. guide column; 4. docking ring; 5. docking inner hose; 6. adjustment ring; 7. threaded rod; 8. inner thread block; 9. adjustment rod; 10. air supply column; 11. fixed inner hose; 12. alarm; 13. electrode sheet; 14. zigzag pressure plate; 15. limit slide groove; 16. motor; 17. insertion rod; 18. insertion slot; 19. absorbent sponge; 20. connecting plate; 21. first spring; 22. second spring; 23. air supply rod; 24. movable plug; 25. limit rod; 26. third spring; 27. auxiliary chamber; 28. drainage hole. DETAILED DESCRIPTION

[0041] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0042] Embodiment 1: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The technical solution shown in the figure, the present invention provides the following technical solution: a leakage self-detecting antifreeze valve for a water pipeline, a detection mechanism is disclosed, and the leakage of the joint can be detected by the detection mechanism:

[0043] The valve body 1 has a fixed inner hose 11 penetrating the center of the left and right sides of the valve body 1, and the left and right sides of the valve body 1 are also fixedly connected with a docking outer tube 2, and the fixed inner hose 11 is located on the inner side of the docking outer tube 2;

[0044] The docking ring 4 is fixedly connected to the outer end of the docking outer tube 2, the outer end of the fixed inner hose 11 is docked with the docking inner hose 5, and a detection mechanism for detecting the leakage state is arranged on the inner side of the docking ring 4;

[0045] The detection mechanism includes a connecting plate 20, which is nested at the lower inner side of the docking ring 4, and a water-absorbing sponge 19 is fixedly connected to the upper surface of the connecting plate 20, and a first spring 21 is fixedly connected between the lower surface of the connecting plate 20 and the inner wall of the docking ring 4, an alarm 12 is fixedly connected to the lower side of the docking ring 4, an electrode sheet 13 is fixedly connected to the center of the lower surface of the connecting plate 20, the docking point between the fixed inner hose 11 and the docking inner hose 5 is located on the inner side of the docking ring 4, the water-absorbing sponge 19 is located directly below the docking point, and the electrode sheet 13 is located directly above the alarm 12. The connecting plate 20 is arranged in an arc shape when viewed from the side, and the connecting plate 20 forms an elastic structure with the docking ring 4 through the first spring 21, and the connecting plate 20 forms a sliding structure with the docking ring 4 through the water-absorbing sponge 19.

[0046] The fixed inner hose 11 and the valve body 1 are connected to each other to form a complete valve. At the same time, a docking outer tube 2 is arranged on the outside of the fixed inner hose 11. The docking outer tube 2 can protect the fixed inner hose 11 used for conveying water flow inside to prevent the fixed inner hose 11 from being damaged by the external environment. The docking part of the docking inner hose 5 and the fixed inner hose 11 is located inside the docking ring 4. When the docking part of the docking inner hose 5 and the fixed inner hose 11 leaks liquid due to loose docking, the leaked liquid will drip onto the absorbent sponge 19. At this time, the gravity of the absorbent sponge 19 itself increases, thereby squeezing the connecting plate 20 to move downward. At this time, the connecting plate 20 moves downward and drives the electrode sheet 13 arranged at the bottom to contact the alarm 12. At this time, the alarm 12 sounds, thereby reminding the user that the valve is leaking, and then the valve is repaired.

[0047] Embodiment 2: Figure 2 , Figure 6 , Figure 7 and Figure 8 The technical solution shown in the figure, the present invention provides the following technical solution: a leakage self-detection antifreeze valve for a water pipeline, disclosing a zigzag pressure plate 14, through which the fixed inner hose 11 can be squeezed to slow down the water flow speed:

[0048] A limited slot 15 is provided on the outer side of the docking outer tube 2, and a motor 16 is fixedly connected to the inner side of the limited slot 15, and the motor 16 is electrically connected to the alarm 12, a threaded rod 7 is fixedly connected to the output end of the motor 16, and the other end of the threaded rod 7 is nested in the limited slot 15, and the outer side of the threaded rod 7 is threadedly connected to an internal threaded block 8, and the internal threaded block 8 is nested in the limited slot 15, an adjusting ring 6 is fixedly connected to the outer end of the internal threaded block 8, and a plugging rod 17 is fixedly connected to the inner side of the adjusting ring 6, an adjusting rod 9 is nested on the upper side of the docking outer tube 2, and a zigzag pressure plate 14 is fixedly connected to the inner end of the adjusting rod 9, and a second spring 22 is fixedly connected between the upper surface of the zigzag pressure plate 14 and the inner wall of the docking outer tube 2, a plugging slot 18 is provided inside the plugging rod 17, and the outer end of the plugging rod 17 is nested in the plugging slot 18;

[0049] Two groups of adjusting rods 9 are vertically symmetrically arranged about the center point of the docking outer tube 2, the bending direction of the bending pressure plate 14 is the same, the insertion slot 18 is opened at an angle, the insertion rod 17 forms a sliding structure through the adjusting ring 6, and the adjusting rod 9 forms a sliding structure with the docking outer tube 2 through the insertion slot 18.

[0050] After the alarm 12 sounds, the motor 16 will be started synchronously. At this time, the motor 16 will drive the threaded rod 7 to rotate. At this time, the internal thread block 8 will move within the limiting slide groove 15 under the driving action of the thread of the threaded rod 7, and the internal thread block 8 will drive the adjusting ring 6 to move stably. During the movement of the adjusting ring 6, the insertion rod 17 will be synchronously driven to move horizontally, so that the insertion rod 17 is docked and inserted into the insertion slot 18. Since the insertion slot 18 is designed to be inclined, the adjusting rod 9 will drive the zigzag pressure plate 14 to move toward the side of the fixed inner hose 11 under the action of the insertion rod 17, thereby squeezing the fixed inner hose 11, slowing down the flow of water, and facilitating subsequent maintenance and processing. After the valve maintenance is completed, the motor 16 can be started to drive the insertion rod 17 to reset. At this time, the adjusting rod 9 is not squeezed, and the adjusting rod 9 will pop out and reset outward under the driving of the elastic force of the second spring 22, so that the zigzag pressure plate 14 does not squeeze the fixed inner hose 11, and the water flow can flow normally.

[0051] Embodiment 3: Figure 1 , Fig. 9 and Fig.10 The technical solution shown in the figure, the present invention provides the following technical solution: a leakage self-detection antifreeze valve for a water pipeline, disclosing a discharge mechanism, through which water can be discharged to prevent the valve body 1 from freezing and getting stuck:

[0052] A guide column 3, the guide column 3 penetrates and is connected to the lower surface of the valve body 1, and an auxiliary cavity 27 is provided on the guide column 3, and a discharge mechanism capable of discharging residual water flow of the valve body 1 is provided inside the guide column 3;

[0053] The discharge mechanism includes an air supply column 10, which is arranged through the upper surface of the valve body 1, and the air supply rod 23 is nested inside the air supply column 10, and a limiting rod 25 is fixedly connected inside the guide column 3, and a movable plug 24 is nested outside the limiting rod 25, and a third spring 26 is fixedly connected between the lower surface of the movable plug 24 and the inner wall of the guide column 3, and a drainage hole 28 is opened on the lower surface of the guide column 3, the diameter of the auxiliary cavity 27 is larger than the maximum diameter of the movable plug 24, and the movable plug 24 forms an elastic structure with the guide column 3 through the third spring 26.

[0054] When the external ambient temperature is low, the valve can be closed and the air supply rod 23 can be manually pressed to move the air supply rod 23 along the air supply column 10. At this time, the interior of the valve body 1 can be supplied with air and pressurized under the action of the air supply rod 23 and the air supply column 10. The pressure inside the valve body 1 increases, thereby squeezing the movable plug 24 to move along the limiting rod 25 toward the interior of the guide column 3. When the movable plug 24 moves to the position of the auxiliary chamber 27, the movable plug 24 does not contact the inner wall of the guide column 3. At this time, the movable plug 24 cannot block the water flow inside the valve body 1. The water flow inside the valve body 1 flows into the interior of the guide column 3 and is discharged outward through the discharge hole 28. No water is stored inside the valve body 1, further reducing the phenomenon of the valve body 1 being stuck due to freezing of the water body.

[0055] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 leakage self-checking antifreeze valve for a water pipeline, comprising a valve body (1), wherein a fixed inner hose (11) is connected through the center of the left and right sides of the valve body (1), and a butt-jointed outer tube (2) is also fixedly connected to the left and right sides of the valve body (1), and the fixed inner hose (11) is located on the inner side of the butt-jointed outer tube (2); It is characterized in that Also includes: A docking ring (4), wherein the docking ring (4) is fixedly connected to the outer end of the docking outer tube (2), the outer end of the fixed inner hose (11) is docked with the docking inner hose (5), and a detection mechanism capable of detecting a leakage state is arranged on the inner side of the docking ring (4); A guide column (3) is connected through the lower surface of the valve body (1), an auxiliary cavity (27) is provided on the guide column (3), and a discharge mechanism capable of discharging residual water flow of the valve body (1) is provided inside the guide column (3).

2. A leakage self-detecting antifreeze valve for a water pipeline according to claim 1, characterized in that: The detection mechanism comprises a connecting plate (20), the connecting plate (20) being nested and arranged at the lower inner side of the docking ring (4), and a water-absorbing sponge (19) being fixedly connected to the upper surface of the connecting plate (20), and a first spring (21) being fixedly connected between the lower surface of the connecting plate (20) and the inner wall of the docking ring (4), an alarm (12) being fixedly connected to the lower side of the docking ring (4), and an electrode sheet (13) being fixedly connected to the center of the lower surface of the connecting plate (20).

3. A leakage self-detecting antifreeze valve for water pipeline according to claim 2, characterized in that: The docking point between the fixed inner hose (11) and the docking inner hose (5) is located on the inner side of the docking ring (4), the water-absorbing sponge (19) is located directly below the docking point, and the electrode sheet (13) is located directly above the alarm (12).

4. A leakage self-detecting antifreeze valve for a water pipeline according to claim 2, characterized in that: The connecting plate (20) is arranged in an arc shape in a side view, and the connecting plate (20) forms an elastic structure with the docking ring (4) through a first spring (21), and the connecting plate (20) forms a sliding structure with the docking ring (4) through a water-absorbing sponge (19).

5. The leakage self-detecting antifreeze valve for water pipeline according to claim 1, characterized in that: A limiting sliding groove (15) is provided on the outer side of the butted outer tube (2), and a motor (16) is fixedly connected to the inner side of the limiting sliding groove (15), and the motor (16) is electrically connected to the alarm (12); The output end of the motor (16) is fixedly connected to a threaded rod (7), and the other end of the threaded rod (7) is nested and connected inside the limiting slide groove (15), and the outer side of the threaded rod (7) is threadedly connected to an internal thread block (8), and the internal thread block (8) is nested and connected inside the limiting slide groove (15); The outer end of the internal thread block (8) is fixedly connected to an adjusting ring (6), and the inner side of the adjusting ring (6) is fixedly connected to a cutting rod (17); the upper part of the butt joint outer tube (2) is nestedly connected to an adjusting rod (9), and the inner end of the adjusting rod (9) is fixedly connected to a bending pressure plate (14), and a second spring (22) is fixedly connected between the upper surface of the bending pressure plate (14) and the inner wall of the butt joint outer tube (2); The implantation rod (17) is provided with an implantation slot (18) inside, and the outer end of the implantation rod (17) is nested and connected inside the implantation slot (18).

6. A leakage self-detecting antifreeze valve for a water pipeline according to claim 5, characterized in that: The adjusting rods (9) are arranged in two groups vertically symmetrically about the center point of the butted outer tube (2), the bending directions of the bending pressure plates (14) are the same, and the insertion slots (18) are opened at an angle.

7. The leakage self-detecting antifreeze valve for water pipeline according to claim 5, characterized in that: The insertion rod (17) forms a sliding structure through the adjustment ring (6), and the adjustment rod (9) forms a sliding structure with the butt-jointed outer tube (2) through the insertion slot (18).

8. The leakage self-detecting antifreeze valve for water pipeline according to claim 1, characterized in that: The discharge mechanism comprises an air supply column (10), the air supply column (10) is arranged through the upper surface of the valve body (1), and an air supply rod (23) is nested and connected inside the air supply column (10); The guide column (3) is fixedly connected to a limiting rod (25) inside, and a movable plug (24) is nested and connected to the outside of the limiting rod (25), and a third spring (26) is fixedly connected between the lower surface of the movable plug (24) and the inner wall of the guide column (3), and a drainage hole (28) is opened on the lower surface of the guide column (3).

9. A leakage self-detecting antifreeze valve for a water pipeline according to claim 8, characterized in that: The diameter of the auxiliary cavity (27) is greater than the maximum value of the diameter of the movable plug (24), and the movable plug (24) forms an elastic structure with the guide column (3) through the third spring (26).

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