Expansion tank automatic water filling and pressure stabilizing device

Abstract

The present invention relates to the technical field of expansion tanks, specifically to an automatic water replenishing and pressure stabilizing device for an expansion tank, comprising a base and an expansion tank body, and also comprising a main airbag arranged on the inner wall of the expansion tank body, the main airbag being divided into an upper and lower part, and the ends of the two main airbags that are close to each other are connected with a connecting ring, and the same auxiliary airbag is connected between the two connecting rings. The present invention can start two dual-axis motors at different positions, drive the screw to rotate through the dual-axis motor, and then drive the two parts of the expansion tank body to move away from each other, and drive the connecting rings to move away from each other through the connecting rods at different positions until the auxiliary airbag is opened. At this time, the volume of the airbag is expanded, and at the same time, the setting of the extension tank expands the spatial volume of the expansion tank body. In summary, this setting enables the expansion tank body to adjust the volume according to usage requirements, meet the usage requirements under different pressure conditions, and improve applicability.

Description

Technical Field

[0001] The invention relates to the technical field of expansion tanks, in particular to an automatic water-filling and pressure-stabilizing device for an expansion tank. Background Art

[0002] An expansion tank is a type of tank in which the gas pressure inside is greater than the water pressure when the water loss pressure decreases. At this time, the gas expands and squeezes the water in the airbag to replenish the system.

[0003] A search revealed patent publication number CN217401069U, which proposes an automatic water replenishment and pressure stabilization device for a single expansion tank in a wind power water system. The device comprises an expansion device, an observation port on one side of the expansion tank, a diaphragm connected to the interior of the expansion tank, and a connecting assembly mounted on the top of the expansion tank. The connecting assembly comprises a connecting valve block connected to the top of the expansion tank and a drain valve mounted on one side of the connecting valve block. The fixing device comprises a clamp assembly mounted in the middle of the expansion tank and a mounting plate connected to the fixing assembly. This utility model has the beneficial effects of improving the stability of the water cooling system, reducing the frequency of equipment failures, and enabling free disassembly and assembly for easy stacking and transportation. The angle and position of the device can be freely adjusted during use, fully utilizing space.

[0004] Based on the above patents and combined with practical problems, we found that:

[0005] (1) When using an expansion tank, it is necessary to select an appropriate size according to actual needs. However, under special circumstances, the pressure may change dramatically. At this time, it is inconvenient or difficult to replace the expansion tank in time. The existing method can only be deactivated, affecting the upstream and downstream of the entire use process and has limitations.

[0006] (2) It is inconvenient to visually judge the working device inside the existing expansion tank when in use. The existing method is to set an observation window for viewing, which is also limited by the experience of workers and is not convenient enough. Summary of the Invention

[0007] The object of the present invention is to provide an automatic water-filling and pressure-stabilizing device for an expansion tank, so as to solve the problems raised in the above-mentioned background technology.

[0008] The technical solution of the present invention is: an automatic water-filling and pressure-stabilizing device for an expansion tank, comprising a base and an expansion tank body, and further comprising:

[0009] A main airbag is provided on the inner wall of the expansion tank body, the main airbag is divided into an upper and lower part, the ends of the two main airbags close to each other are connected with a connecting ring, the same auxiliary airbag is connected between the two connecting rings, the inner wall of the auxiliary airbag is wrapped with a plurality of magnetic rings, the expansion tank body is divided into two parts, the inner walls of the two parts of the expansion tank body are provided with a connecting rod, one end of the connecting rod is fixedly connected to the outer wall of the connecting ring;

[0010] An extension tank is slidably connected to the inner wall of the expansion tank body, a sealing ring is fixedly provided on the outer wall of the extension tank, two dual-axis motors are fixedly installed on the outer wall of the sealing ring, and screws are fixedly installed on the top ends of the two output shafts of the two dual-axis motors. Multiple fixed blocks are fixedly installed on the outer walls of the two parts of the expansion tank body, and the screws pass through the fixed blocks and are connected to the fixed blocks by threads.

[0011] Preferably, an air vent is provided on the top of the expansion tank body, a water inlet pipe and a drain pipe are provided on the bottom of the expansion tank body, and solenoid valves are provided on the outer walls of the water inlet pipe and the drain pipe.

[0012] Preferably, a test hole is opened on the top of the expansion tank body, and an observation tube is fixedly installed on the top of the expansion tank body through the test hole. A guide rod 1 is fixedly installed on the top of the observation tube, and a floating block is slidably connected to the outer wall of the guide rod 1. An indicator line is provided on the outer wall of the floating block. The observation tube is made of transparent material, and a protrusion is provided on the inner wall of the test hole.

[0013] Preferably, the base is provided with two pieces, the tops of the two bases are slidably connected with two slides, the tops of the two slides are fixedly installed with two inclined fixing plates, the outer walls of the expansion tank body are fixedly provided with fixing rings, and one end of the two fixing plates is slidably connected to the fixing rings.

[0014] Preferably, the outer walls of both sides of the fixing ring are provided with a sliding groove, and a slider 2 is provided at one end of the fixing plate, and the slider 2 is slidably connected to the inner wall of the sliding groove, and a U-shaped block is fixedly installed on one side of the fixing plate, and the outer wall of the U-shaped block is provided with two through holes and a threaded hole, and a support plate is slidably connected to one side of the U-shaped block, and a bolt is rotatably connected to the outer wall of one side of the support plate, and two guide rods 2 are fixedly installed on the outer wall of the support plate, and the bolt is connected to the inner wall of the threaded hole through a thread, and the guide rod 2 is slidably connected to the inner wall of the through hole, and a knob is fixedly provided on one end of the bolt.

[0015] Preferably, a plurality of inclined support plates are fixedly mounted on the top of the slide plate, and one end of the plurality of support plates is fixedly connected to an outer wall of one side of the fixed plate.

[0016] Preferably, two sliders 1 are provided at the bottom of the two slides, and slide rails are provided at the top of the two bases, and the slides are slidably connected to the two bases through the two sliders 1.

[0017] Preferably, two base blocks are fixedly installed on the top outer walls of the two skateboards, sliding holes are opened on the two base blocks, a base plate is fixedly installed on the top outer wall of the base, and sliding rods are fixedly installed on the outer walls of both sides of the base plate, and the outer wall of the sliding rod is provided with a spring, and the two ends of the spring are fixedly connected to the outer walls of the base block and the base plate respectively.

[0018] The present invention provides an automatic water filling and pressure stabilizing device for an expansion tank through improvement, which has the following improvements and advantages compared with the prior art:

[0019] First, when the space of the main airbag is insufficient, the volume of the airbag can be expanded by opening the auxiliary airbag. Specifically, the dual-axis motors at two different positions are started, and the dual-axis motors drive the screws to rotate, thereby driving the two parts of the expansion tank body to move away from each other. The connecting rods at different positions are used to drive the connecting rings away from each other until the auxiliary airbag is opened. At this time, the volume of the airbag is expanded. At the same time, the setting of the extension tank also expands the space volume of the expansion tank body. In summary, this setting enables the expansion tank body to adjust its volume according to usage requirements, meet usage requirements under different pressure conditions, and improve its applicability.

[0020] Second, workers can grasp the pressure conditions inside the expansion tank through the observation tube on the top of the expansion tank. When the internal pressure is high, the float slides upward along the inner wall of the observation tube. When the pressure is low, the float falls downward along the inner wall of the observation tube. The outer wall of the observation tube is provided with scale lines, making the observed data more intuitive.

[0021] Third: The present invention drives the bolt to rotate by turning the knob to move the back plate away from the fixed ring. The operation is repeated four times in sequence. At this time, the fixed plate and the fixed ring can slide relative to each other. The worker assists the expansion tank body to rotate to a suitable angle, and then drives the back plate close to the fixed ring by turning the bolts in sequence until the back plate and the outer wall of the fixed ring are completely pressed against each other, thereby achieving the fixation of the expansion tank body after the angle adjustment. This method can meet the position adjustment requirements of the expansion tank body and improve the reliability of the expansion tank body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further explained below in conjunction with the accompanying drawings and examples:

[0023] Figure 1 It is an overall stereogram of the present invention;

[0024] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0025] Figure 3 is a cross-sectional view of the main body of the expansion tank of the present invention;

[0026] Figure 4 yes Figure 3 A partial enlarged view of part B;

[0027] Figure 5 is a perspective view of the extended tank portion of the present invention;

[0028] Figure 6 is a cross-sectional view of the observation tube portion of the present invention;

[0029] Figure 7 It is a three-dimensional diagram of the skateboard part of the present invention

[0030] Figure 8 yes Figure 7 A partial enlarged view of part C.

[0031] Description of reference numerals:

[0032] 1. Base; 2. Expansion tank body; 3. Observation tube; 4. Water inlet pipe; 5. Drain pipe; 6. Solenoid valve; 7. Sealing ring; 8. Base plate; 9. Fixing ring; 10. Extension tank; 11. Dual-axis motor; 12. Screw rod; 13. Slide plate; 14. Base block; 15. Spring; 16. Slide rod; 17. Slide rail; 18. Vent nozzle; 19. Main airbag; 20. Connecting rod; 21. Connecting ring; 22. Auxiliary airbag; 23. Magnetic ring; 24. Guide rod 1; 25. Floating block; 26. Protrusion; 27. Slider 1; 28. Fixing plate; 29. ​​Support plate; 30. U-shaped block; 31. Guide rod 2; 32. Bolt; 33. Abutment plate; 34. Fixing block; 35. Slider 2. DETAILED DESCRIPTION

[0033] The present invention is described in detail below, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] The present invention provides an automatic water replenishment and pressure stabilization device for an expansion tank through improvement. The technical solution of the present invention is:

[0035] like Figures 1-8 As shown, the automatic water replenishment and pressure stabilization device for an expansion tank includes a base 1 and an expansion tank body 2, and also includes:

[0036] The main airbag 19 is arranged on the inner wall of the expansion tank body 2, and the main airbag 19 is divided into two parts, the upper and lower parts, and the ends of the two main airbags 19 that are close to each other are connected with a connecting ring 21. The same auxiliary airbag 22 is connected between the two connecting rings 21. The inner wall of the auxiliary airbag 22 is wrapped with multiple magnetic rings 23. The multiple magnetic rings 23 facilitate the folding of the auxiliary airbag 22 when not in use. The use of magnetic adsorption makes the auxiliary airbag 22 provide convenience only when needed. The expansion tank body 2 is divided into two parts, and the inner walls of the two parts of the expansion tank body 2 are both provided with a connecting rod 20. One end of the connecting rod 20 is fixedly connected to the outer wall of the connecting ring 21. When the expansion tank body 2 moves away from each other, the connecting ring 21 is pulled by the connecting rod 20 to achieve the effect of spreading the auxiliary airbag 22;

[0037] The extension tank 10 and the contact surfaces of the extension tank 10 and the expansion tank body 2 are provided with sealing measures, which can ensure that the sealing performance of the entire tank body is not affected when the volume of the expansion tank body 2 is expanded. It will not affect the original function of the tank body. The extension tank 10 is slidably connected to the inner wall of the expansion tank body 2. The outer wall of the extension tank 10 is fixedly provided with a sealing ring 7. The outer wall of the sealing ring 7 is fixedly provided with two dual-axis motors 11. The top ends of the two output shafts of the two dual-axis motors 11 are fixedly provided with screws 12. The outer walls of the two parts of the expansion tank body 2 are fixedly provided with multiple fixing blocks 34. The screws 12 pass through the fixing blocks 34 and are connected to the fixing blocks 34 by threads. Among them, by starting the dual-axis motors 11 at two different positions, the dual-axis motors 11 drive the screws 12 to rotate, thereby driving the two parts of the expansion tank body 2 to move away from each other, and the connecting rods 20 at different positions are used to drive the connecting rings 21 away until the auxiliary airbag 22 is opened. At this time, the volume of the airbag is expanded. At the same time, the setting of the extension tank 10 makes the spatial volume of the expansion tank body 2 also expand. In summary, this setting enables the expansion tank body 2 to adjust the volume according to usage requirements, meet the usage requirements under different pressure conditions, and improve applicability.

[0038] Furthermore, a vent nozzle 18 is provided on the top of the expansion tank body 2, and a water inlet pipe 4 and a drain pipe 5 are provided at the bottom of the expansion tank body 2. The outer walls of the water inlet pipe 4 and the drain pipe 5 are both provided with a solenoid valve 6, wherein the through hole controls the on and off of the solenoid valve 6 to control whether the water enters the water inlet pipe 4 or drains through the drain pipe 5.

[0039] Furthermore, a test hole is opened at the top of the expansion tank body 2, and an observation tube 3 is fixedly installed on the top of the expansion tank body 2 through the test hole. A guide rod 24 is fixedly installed on the top of the observation tube 3, and a float 25 is slidably connected to the outer wall of the guide rod 24. The outer wall of the float 25 is provided with an indicator line. The observation tube 3 is made of transparent material, and the inner wall of the test hole is provided with a protrusion 26. When the internal pressure is large, the float 25 slides upward along the inner wall of the observation tube 3, and when the pressure is small, the float 25 falls downward along the inner wall of the observation tube 3. The outer wall of the observation tube 3 is provided with scale lines, so that the observed data is more intuitive. In addition, a protrusion 26 is provided on the inner wall of the test hole to limit the float 25.

[0040] Furthermore, the base 1 is provided with two pieces, and two slides 13 are slidably connected to the top of the two bases 1. Two inclined fixing plates 28 are fixedly installed on the top of the two slides 13. The outer wall of the expansion tank body 2 is fixedly provided with a fixing ring 9. One end of the two fixing plates 28 is slidably connected to the fixing ring 9. The motion trajectory of this sliding connection method is that the fixing plate 28 makes a circular motion along the fixing ring 9. In this way, the expansion tank body 2 can be rotated to any angle.

[0041] Furthermore, both sides of the outer wall of the fixing ring 9 are provided with a slide groove, one end of the fixing plate 28 is provided with a slider 2 35, the slider 2 35 is slidably connected to the inner wall of the slide groove, a U-shaped block 30 is fixedly installed on one side of the fixing plate 28, the outer wall of the U-shaped block 30 is provided with two through holes and a threaded hole, and a support plate 33 is slidably connected to one side of the U-shaped block 30, a bolt 32 is rotatably connected to the outer wall of one side of the support plate 33, and two guide rods 2 31 are fixedly installed on the outer wall of the support plate 33, the bolt 32 is connected to the inner wall of the threaded hole by threading, the guide rod 2 31 is slidably connected to the inner wall of the through hole, and a knob is fixedly provided on one end of the bolt 32. Among them, the expansion tank body 2 can be rotated according to the spatial winding situation of the pipeline. Specifically, the knob is turned to drive the bolt 32 to rotate so that the butt plate 33 is away from the fixing ring 9. The operation is performed four times in sequence. At this time, the fixing plate 28 and the fixing ring 9 can slide relative to each other. The worker assists the expansion tank body 2 to rotate to a suitable angle, and then drives the butt plate 33 close to the fixing ring 9 by turning the bolts 32 in sequence until the butt plate 33 is completely pressed against the outer wall of the fixing ring 9, thereby achieving the fixation of the expansion tank body 2 after the angle adjustment. This method can meet the position adjustment requirements of the expansion tank body 2 and improve the reliability of the expansion tank body 2 when in use.

[0042] Furthermore, a plurality of inclined support plates 29 are fixedly installed on the top of the skateboard 13, and one end of the plurality of support plates 29 is fixedly connected to the outer wall of one side of the fixed plate 28. Through the support plates 29, a triangular space is formed between the support plates 29 and the fixed plate 28, thereby improving the reliability of the fixed plate 28 when it is fixed.

[0043] Furthermore, two sliders 27 are provided at the bottom of the two skateboards 13, and slide rails 17 are provided at the top of the two bases 1. The skateboard 13 is slidably connected to the two bases 1 through the two sliders 27, and the skateboard 13 slides to any specified position by sliding the slider 27 on the inner wall of the slide rail 17.

[0044] Furthermore, two base blocks 14 are fixedly mounted on the top outer walls of the two slides 13, and sliding holes are opened on the two base blocks 14. A base plate 8 is fixedly mounted on the top outer wall of the base 1, and sliding rods 16 are fixedly mounted on the outer walls of both sides of the base plate 8. The outer wall of the sliding rod 16 is sleeved with a spring 15, and the two ends of the spring 15 are respectively fixedly connected to the outer walls of the base block 14 and the base plate 8. The sliding connection between the sliding rod 16 and the base block 14 makes the process of the slide 13 moving away from each other smoother and more reliable. In addition, the spring 15 can also provide the expansion tank body 2 with a reset force.

[0045] In this solution, the contact surfaces of the extension tank 10 and the expansion tank body 2 are both provided with sealing measures, which can ensure that the sealing performance of the entire tank body will not be affected when the volume of the expansion tank body 2 is expanded, and the original function of the tank body will not be affected.

[0046] During use, workers can grasp the pressure condition inside the expansion tank body 2 through the observation tube 3 on the top of the expansion tank body 2. When the internal pressure is high, the float 25 slides upward along the inner wall of the observation tube 3. When the pressure is low, the float 25 falls downward along the inner wall of the observation tube 3. The outer wall of the observation tube 3 is provided with scale lines, making the observed data more intuitive. In addition, a protrusion 26 is provided on the inner wall of the test hole to limit the float 25. The through hole controls the on and off of the solenoid valve 6 to control whether the water enters the inlet pipe 4 or is discharged through the drain pipe 5.

[0047] The expansion tank body 2 can be rotated according to the spatial winding situation of the pipeline. Specifically, the knob is turned to drive the bolt 32 to rotate so that the support plate 33 is away from the fixing ring 9. This operation is performed four times in sequence. At this time, the fixing plate 28 and the fixing ring 9 can slide relative to each other. The worker assists the expansion tank body 2 to rotate to a suitable angle, and then drives the support plate 33 close to the fixing ring 9 by turning the bolt 32 in sequence until the support plate 33 and the outer wall of the fixing ring 9 are completely tightened, thereby achieving the fixation of the expansion tank body 2 after the angle adjustment. This method can meet the position adjustment requirements of the expansion tank body 2 and improve the reliability of the expansion tank body 2 when in use;

[0048] When the space of the main airbag 19 is not enough to be used, the volume of the airbag portion can be expanded by opening the auxiliary airbag 22. Specifically, by starting the dual-axis motors 11 at two different positions, the dual-axis motors 11 drive the screw 12 to rotate, and then drive the two parts of the expansion tank body 2 to move away from each other, and the connecting rods 20 at different positions drive the connecting ring 21 away from each other until the auxiliary airbag 22 is opened. At this time, the volume of the airbag is expanded. At the same time, the setting of the extension tank 10 also expands the space volume of the expansion tank body 2. In summary, this setting enables the expansion tank body 2 to adjust its volume according to usage requirements, meet usage requirements under different pressure conditions, and improve applicability.

[0049] In addition, when the volume of the expansion tank body 2 is expanded, the two slide plates 13 move away from each other, so that the cooperation between the spring 15 and the slide rod 16 enables the entire expansion process to proceed smoothly and smoothly.

[0050] The above description is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic water-filling and pressure-stabilizing device for an expansion tank, comprising a base (1) and an expansion tank body (2), characterized in that: Also includes: A main airbag (19) is arranged on the inner wall of the expansion tank body (2), the main airbag (19) is divided into an upper and lower part, the ends of the two main airbags (19) close to each other are connected with a connecting ring (21), the two connecting rings (21) are connected with the same auxiliary airbag (22), the inner wall of the auxiliary airbag (22) is wrapped with a plurality of magnetic rings (23), the expansion tank body (2) is divided into two parts, the inner walls of the two expansion tank bodies (2) are provided with a connecting rod (20), and one end of the connecting rod (20) is fixedly connected to the outer wall of the connecting ring (21); An extension tank (10), wherein the extension tank (10) is slidably connected to the inner wall of the expansion tank body (2), a sealing ring (7) is fixedly provided on the outer wall of the extension tank (10), two dual-axis motors (11) are fixedly installed on the outer wall of the sealing ring (7), and screw rods (12) are fixedly installed on the top ends of the two output shafts of the two dual-axis motors (11), and a plurality of fixing blocks (34) are fixedly installed on the outer walls of the two parts of the expansion tank body (2), and the screw rods (12) pass through the fixing blocks (34) and are connected to the fixing blocks (34) by threads; The base (1) is provided with two pieces, and two slide plates (13) are slidably connected to the tops of the two bases (1), and two inclined fixed plates (28) are fixedly installed on the tops of the two slide plates (13). The outer wall of the expansion tank body (2) is fixedly provided with a fixed ring (9), and one end of the two fixed plates (28) is slidably connected to the fixed ring (9); The outer walls of both sides of the fixing ring (9) are provided with a sliding groove, and one end of the fixing plate (28) is provided with a second slider (35), and the second slider (35) is slidably connected to the inner wall of the sliding groove. A U-shaped block (30) is fixedly installed on one side of the fixing plate (28), and the outer wall of the U-shaped block (30) is provided with two through holes and a threaded hole, and a side of the U-shaped block (30) is slidably connected to a support plate (33), and a bolt (32) is rotatably connected to the outer wall of the support plate (33), and two guide rods (31) are fixedly installed on the outer wall of the support plate (33), and the bolt (32) is connected to the inner wall of the threaded hole by threading. The second guide rod (31) is slidably connected to the inner wall of the through hole, and a knob is fixedly provided on one end of the bolt (32).

2. The automatic water-filling and pressure-stabilizing device for an expansion tank according to claim 1, characterized in that: The top of the expansion tank body (2) is provided with an air release nozzle (18), the bottom of the expansion tank body (2) is provided with a water inlet pipe (4) and a drain pipe (5), and the outer walls of the water inlet pipe (4) and the drain pipe (5) are both provided with solenoid valves (6).

3. The automatic water-filling and pressure-stabilizing device for an expansion tank according to claim 1, characterized in that: A test hole is provided on the top of the expansion tank body (2), and an observation tube (3) is fixedly installed on the top of the expansion tank body (2) through the test hole. A guide rod (24) is fixedly installed on the top of the observation tube (3). A floating block (25) is slidably connected to the outer wall of the guide rod (24). An indicator line is provided on the outer wall of the floating block (25). The observation tube (3) is made of a transparent material, and a protrusion (26) is provided on the inner wall of the test hole.

4. The automatic water-filling and pressure-stabilizing device for an expansion tank according to claim 1, characterized in that: A plurality of inclined support plates (29) are fixedly mounted on the top of the slide plate (13), and one end of the plurality of support plates (29) is fixedly connected to an outer wall of one side of the fixed plate (28).

5. The automatic water-filling and pressure-stabilizing device for an expansion tank according to claim 4, characterized in that: The bottoms of the two slides (13) are each provided with two sliders (27), the tops of the two bases (1) are each provided with a slide rail (17), and the slides (13) are slidably connected to the two bases (1) via the two sliders (27).

6. The automatic water-filling and pressure-stabilizing device for an expansion tank according to claim 5, characterized in that: Two base blocks (14) are fixedly mounted on the top outer walls of the two slides (13), and sliding holes are provided on the two base blocks (14). A base plate (8) is fixedly mounted on the top outer wall of the base (1), and sliding rods (16) are fixedly mounted on the outer walls of both sides of the base plate (8). The outer wall of the sliding rod (16) is sleeved with a spring (15), and the two ends of the spring (15) are fixedly connected to the outer walls of the base block (14) and the base plate (8), respectively.

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