A pressurizing device for central heating

Abstract

This utility model discloses a pressurizing device for centralized heating, including a heating tank, a fixed pipe at the top of the heating tank, a control sleeve and a connecting pipe above the fixed pipe, a movable plate rotatably mounted on the outside of the connecting pipe, a movable hole on the movable plate, a coordinating block on one side of the movable plate, an adapter block on the outside of the connecting pipe, a coordinating spring between the adapter block and the coordinating block, a limiting sleeve slidably mounted on the outside of the connecting pipe, a top rod on one side of the limiting sleeve, a limiting block and a tension spring movably mounted on one side of the control sleeve, multiple locking blocks on the outside of the connecting pipe, a mating rod in the fixed pipe, a flow groove inside the mating rod, an input groove and an output groove on the side wall of the mating rod, a configuration sleeve movably mounted inside the control sleeve, multiple output holes at one end of the fixed pipe, a sealing plate slidably mounted inside the connecting pipe, and a push spring movably mounted on the outside of the mating rod. This utility model achieves flexible pressure control and ensures structural stability after adjustment.

Description

Technical Field

[0001] This utility model relates to the field of centralized heating pressurization technology, and more specifically, it relates to a pressurization device for centralized heating. Background Technology

[0002] With the rapid advancement of urbanization and the continuous improvement of people's living standards, centralized heating, as an important component of modern urban infrastructure, plays a crucial role in ensuring heating for residents, improving energy efficiency, reducing environmental pollution emissions, improving urban air quality, promoting energy conservation and emission reduction, and achieving sustainable development. Centralized heating pressurization devices, responsible for maintaining stable system pressure and undertaking the important task of pressure regulation and control, suffer from several problems in practical applications. These include inadequate structural design, relatively simple functional configurations, insufficient control, and limited regulation capabilities. In particular, the technical means to prevent backflow in heating pipelines are overly simplistic and crude. Current technologies typically rely solely on simple, single-function one-way devices to prevent heat transfer in the heating pipelines. When backflow occurs, these traditional one-way devices, while providing basic backflow prevention to some extent, have key technical indicators such as opening pressure threshold, closing pressure setting, and response time that are fixed standardized values ​​during manufacturing. These cannot be flexibly adjusted based on actual production and application needs, such as the pipeline layout characteristics of different heating systems, heat source supply capacity, end-user distribution, seasonal temperature changes, heating load fluctuations, system resistance loss, environmental conditions, and operation and maintenance status. This results in an inability to control and regulate the internal pressure of the heating tank, easily leading to technical problems such as excessively high or low internal pressure, uneven system pressure distribution, unstable heat medium circulation flow, and unsatisfactory heating effects. It may even cause dangerous situations such as heating pipeline rupture, equipment damage, heating interruption accidents, and increased safety hazards.

[0003] Secondly, while some improved pressurization devices for centralized heating have achieved flexible adjustment of the opening and closing pressure thresholds of unidirectional devices through the reasonable design of some advanced components, the overall structural design of the pressure regulation and threshold control systems of these improved pressurization devices is too simple and crude. They lack sufficient anti-interference protection measures, and their resistance to vibration and shock and external interference is poor. During long-term continuous operation of centralized heating pressurization devices, they are easily subjected to pressure shocks, water hammer effects, and pipeline vibrations during the start-up and shutdown of the heating system, mechanical vibrations generated by the operation of other equipment in the heating station, as well as various complex external factors and harsh conditions such as pipeline flushing, valve operation, equipment disassembly and assembly during maintenance and repair of the heating system, accidental impacts and improper operation by operators during daily inspections. Adverse operating environment conditions can cause structural degradation problems in the originally adjusted and set optimal opening and closing pressure thresholds, such as gradual drifting of connection parts, natural decay of control parameters, and a sharp decline in overall stability. In some cases, it can even lead to sudden failure of the regulating device or serious structural failures such as significant deviation of threshold parameters from preset values. This results in unpredictable and irregular changes and deviations in the optimal opening and closing pressure thresholds, reducing the operational stability and uniformity of heating quality of the heating system. It can also cause uncontrolled heating pressure, system malfunctions, equipment failures and shutdowns, and interruptions in heating supply to users. Furthermore, it can lead to serious safety hazards such as pipe bursts due to excessive pressure, equipment damage and scrapping, burns to personnel, and increased property losses. Utility Model Content

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a pressurization device for centralized heating to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a pressurizing device for centralized heating, comprising a heating tank, a fixed pipe fixedly connected to the top of the heating tank, a control sleeve and a connecting pipe above the fixed pipe, the two ends of the control sleeve being rotatably connected to the connecting pipe and the fixed pipe respectively, a movable plate rotatably provided on the outside of the connecting pipe, a movable hole provided on the movable plate, a coordinating block fixedly provided on one side of the movable plate, an adapter block fixedly provided on the outside of the connecting pipe, a coordinating spring connecting the adapter block and the coordinating block, a limiting sleeve slidably sleeved on the outside of the connecting pipe, and a limiting sleeve on one side... The fixed connection is equipped with a top rod. A limiting block and a tension spring are movably provided on one side of the control sleeve. The two ends of the tension spring are respectively connected to two adjacent limiting blocks. Multiple locking blocks are fixedly provided on the outside of the connecting tube. A matching rod is fixedly provided in the fixed tube. A flow groove is opened inside the matching rod. An input groove and an output groove are opened on the side wall of the matching rod. A configuration sleeve is movably provided on the inside of the control sleeve. Multiple output holes are opened at one end of the fixed tube. A sealing plate is slidably provided on the inside of the connecting tube. A push spring is movably sleeved on the outside of the matching rod. One end of the push spring is connected to the sealing plate, and the other end of the push spring abuts against one side of the configuration sleeve.

[0006] The present invention is further configured such that a pressurizing component is detachably provided on one side of the heating tank, a pressurizing pipe is connected to the output end of the pressurizing component, and the other end of the pressurizing pipe is connected to a connecting pipe.

[0007] The present invention is further configured such that a limiting groove is provided in the limiting block, and a plurality of limiting rails are fixedly provided on one side of the control sleeve, and the limiting block is slidably installed on the outside of the limiting rails through the limiting groove.

[0008] The present invention is further configured such that a coordinating rod is connected to one side of the coordinating block, the coordinating spring is movably sleeved on the outside of the coordinating rod, a coordinating hole is opened in the adapter block, and one end of the coordinating rod slides into the coordinating hole.

[0009] The present invention is further configured such that a rotating wheel is rotatably mounted on one side of the limiting block, and the rotating wheel is engaged between two adjacent locking blocks.

[0010] The present invention is further configured such that a sliding groove is provided on the outer side of the connecting pipe, and a slider is slidably provided in the sliding groove, and the slider is fixedly installed on the inner side of the limiting sleeve.

[0011] The present invention is further configured such that a top spring is movably sleeved on the outside of the top rod, one end of the top spring is connected to the limiting sleeve, and the other end of the top spring is in contact with the movable plate.

[0012] The present invention is further configured such that a configuration block is fixedly provided on the inner side of the control sleeve, and a configuration groove is provided on the outer side of the configuration sleeve, and the configuration block is slidably positioned in the configuration groove.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a pressurization device for centralized heating, which has the following beneficial effects: 1. By coordinating multiple components such as the heating tank, fixed pipe, control sleeve, connecting pipe, mating rod, flow channel, input channel, output channel, and configuration sleeve, a complete threshold flexible adjustment control system is constructed. This solves the serious technical limitation problem in existing technologies where the opening and closing pressure thresholds of unidirectional devices in centralized heating pressurization devices are fixed and cannot be flexibly adjusted according to actual needs. When it is necessary to adjust the opening and closing thresholds, the operator can achieve flexible adjustment of the switching thresholds with a simple rotation action, without being limited by the rigid constraints of standardized values. The internal pressure of the heating tank can be controlled and regulated through simple manual operation steps, improving pressure control and system adaptability, and effectively enhancing the flexibility of equipment use.

[0014] 2. Through the comprehensive coordination of multiple mechanical locking and structural stabilization measures, including the rotational transmission between the control sleeve and the limiting rail, the sliding fit between the limiting rail and the limiting groove, the locking and fixing of the rotating wheel and the locking block, the sliding guidance between the limiting sleeve and the slider and the sliding groove, the positioning of the top rod and the movable hole, and the rotational fit between the coordinating block and the coordinating rod and the coordinating hole, a multi-level anti-loosening and anti-deviation safety system is constructed. This enhances the overall structural stability of the system, improves its vibration resistance and deviation resistance, and effectively resists pressure shocks, water hammer effects, and pipeline vibrations during the start-up and shutdown of the heating system in the actual operation of the pressurization device for centralized heating, as well as mechanical vibrations generated by the operation of other equipment in the heating station, and various complex external forces such as pipeline flushing, valve operation, equipment disassembly and assembly during maintenance and repair of the heating system, and accidental collisions and improper operations by operators during daily inspections. This invention addresses the adverse effects of harsh operating environments and solves serious structural defects in existing technologies, such as overly simplistic and crude overall design of the pressure regulation and threshold control systems in some improved centralized heating pressurization devices, resulting in poor resistance to vibration and shock and external interference. It avoids structural degradation issues such as loose connections and positional drift of the regulation mechanism in the originally adjusted and set optimal opening and closing pressure thresholds. This ensures that the carefully adjusted and set optimal opening and closing pressure thresholds remain stable over the long term, maintaining stable pressure control accuracy and heating quality, and meeting the stringent technical requirements of high stability, high reliability, and long-term safe operation of the pressure regulation system in centralized heating pressurization devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a pressurization device for centralized heating according to this utility model; Figure 2This is a schematic diagram of the dispersed structure of the sleeve, fixing tube, limiting sleeve, movable plate, control sleeve and connecting tube in this utility model; Figure 3 This is a cross-sectional structural diagram of the configuration sleeve, fixing tube, limiting sleeve, movable plate, control sleeve and connecting tube in this utility model; Figure 4 This is a structural schematic diagram of the sealing plate, the sleeve, and the fixing tube in this utility model; Figure 5 This is a schematic diagram of the dispersed structure of the sealing plate, the configuration sleeve, and the control sleeve in this utility model.

[0016] In the diagram: 1. Heating tank; 2. Fixed pipe; 3. Control sleeve; 4. Connecting pipe; 5. Movable plate; 6. Movable hole; 7. Coordinating block; 8. Adaptor block; 9. Coordinating spring; 10. Limiting sleeve; 11. Top rod; 12. Limiting block; 13. Tension spring; 14. Locking block; 15. Matching rod; 16. Flow groove; 17. Input groove; 18. Output groove; 19. Configuration sleeve; 20. Output hole; 21. Sealing plate; 22. Push spring; 23. Pressurization assembly; 24. Pressurization pipe; 25. Limiting groove; 26. Limiting rail; 27. Coordinating rod; 28. Coordinating hole; 29. ​​Rotary wheel; 30. Slide groove; 31. Slider; 32. Top spring; 33. Configuration block; 34. Configuration groove. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0020] Please see Figures 1-5A pressurizing device for centralized heating includes a heating tank 1. A fixed pipe 2 is fixedly connected to the top of the heating tank 1. A control sleeve 3 and a connecting pipe 4 are provided above the fixed pipe 2. The two ends of the control sleeve 3 are rotatably connected to the connecting pipe 4 and the fixed pipe 2, respectively. A movable plate 5 is rotatably provided on the outside of the connecting pipe 4. A movable hole 6 is provided on the movable plate 5. A coordinating block 7 is fixedly provided on one side of the movable plate 5. An adapter block 8 is fixedly provided on the outside of the connecting pipe 4. A coordinating spring 9 is connected between the adapter block 8 and the coordinating block 7. A limiting sleeve 10 is slidably sleeved on the outside of the connecting pipe 4. A top rod 11 is fixedly connected to one side of the limiting sleeve 10. A movable part of the control sleeve 3 is movably provided on one side. There are limiting blocks 12 and tension springs 13. The two ends of tension springs 13 are respectively connected to two adjacent limiting blocks 12. Multiple locking blocks 14 are fixed on the outside of the connecting tube 4. A matching rod 15 is fixed in the fixed tube 2. A flow groove 16 is opened inside the matching rod 15. An input groove 17 and an output groove 18 are opened on the side wall of the matching rod 15. A configuration sleeve 19 is movably provided inside the control sleeve 3. Multiple output holes 20 are opened at one end of the fixed tube 2. A sealing plate 21 is slidably provided inside the connecting tube 4. A push spring 22 is movably sleeved on the outside of the matching rod 15. One end of the push spring 22 is connected to the sealing plate 21, and the other end of the push spring 22 abuts against one side of the configuration sleeve 19.

[0021] A pressurizing component 23 is detachably provided on one side of the heating tank 1. A pressurizing pipe 24 is connected to the output end of the pressurizing component 23, and the other end of the pressurizing pipe 24 is connected to the connecting pipe 4.

[0022] In this embodiment, when the opening and closing thresholds need to be adjusted, the movable plate 5 is first rotated forward, causing the movable hole 6 to rotate forward. The movable plate 5 also causes the coordinating block 7 on one side to rotate forward. Then, the coordinating block 7 causes the coordinating rod 27 on one side to rotate forward along the coordinating hole 28. The coordinating block 7 and the adapter block 8 cooperate to compress the coordinating spring 9. When the coordinating spring 9 is compressed to its limit, the movable hole 6 rotates to a position concentric with the top rod 11. Then, the limiting sleeve 10 is pushed, causing the limiting sleeve 10 to drive the inner slider 31 to slide along the slide groove 30. The limiting sleeve 10 also causes the top rod 11 on one side to gradually slide into the movable hole 6. At the same time, the limiting sleeve 10 compresses with the top spring 32, causing the limiting sleeve 10 to gradually stop limiting the outer wall of the rotating wheel 29. Then, the control sleeve 3 is rotated forward, causing the control sleeve 3 to drive the limiting rail 26 on one side to rotate forward. The forward rotation causes the limiting rail 26 to move the limiting block 12 and the rotating wheel 29 through the limiting groove 25, thereby causing the rotating wheel 29 to slide out from between the two adjacent locking blocks 14. The rotating wheel 29 will drive one side of the limiting block 12 to slide outward along the limiting rail 26 and the limiting groove, while the limiting block 12 will be stretched outward in conjunction with the tension spring 13. At the same time, the control sleeve 3 will drive the inner configuration block 33 to rotate. Then, through the cooperation of the configuration block 33 and the configuration groove 34, the configuration sleeve 19 will be driven to rotate forward, and the configuration sleeve 19 will move along the preset threads on the inner wall of the connecting pipe 4 and the fixing pipe 2. This will cause the sealing plate 21 and the configuration sleeve 19 to slightly compress the push spring 22, compressing the push spring 22. At the same time, the push spring 22 will increase the thrust applied to the sealing plate 21, so that the other side of the sealing plate 21 needs to withstand a greater force to open the sealing plate 21.

[0023] Please see Figures 2-5 As a further implementation of the overall equipment: a limiting groove 25 is provided in the limiting block 12, and multiple limiting rails 26 are fixedly provided on one side of the control sleeve 3. The limiting block 12 is slidably installed on the outside of the limiting rails 26 through the limiting groove 25. A coordinating rod 27 is connected to one side of the coordinating block 7, and a coordinating spring 9 is movably sleeved on the outside of the coordinating rod 27. A coordinating hole 28 is opened in the adapter block 8, and one end of the coordinating rod 27 slides into the coordinating hole 28.

[0024] A rotating wheel 29 is rotatably installed on one side of the limiting block 12, and the rotating wheel 29 is engaged between two adjacent locking blocks 14.

[0025] A groove 30 is provided on the outside of the connecting pipe 4, and a slider 31 is slidably provided in the groove 30. The slider 31 is fixedly installed inside the limiting sleeve 10.

[0026] A top spring 32 is movably sleeved on the outer side of the top rod 11. One end of the top spring 32 is connected to the limiting sleeve 10, and the other end of the top spring 32 is connected to the movable plate 5 in contact.

[0027] A configuration block 33 is fixedly provided on the inner side of the control sleeve 3, and a configuration slot 34 is provided on the outer side of the configuration sleeve 19, with the configuration block 33 sliding in the configuration slot 34.

[0028] More specifically, after the switch threshold is adjusted appropriately, the control sleeve 3 stops rotating, and the control sleeve 3, through the cooperation of the limiting rail 26 and the limiting groove 25, drives the rotating wheel 29 and the limiting block 12 to rotate between the corresponding two locking blocks 14. Then, the tension spring 13 resets and pulls the limiting block 12, causing the limiting block 12 to drive the limiting groove 25 to slide inward along the limiting rail 26. This causes the limiting block 12 to drive one side of the rotating wheel 29 to engage between the corresponding two locking blocks 14. Then, the limiting sleeve 10 is released, and the top spring 32 pushes the limiting sleeve 10 to slide back to its original position. Then, the limiting sleeve 10 drives the inner slider 31 to slide along the sliding groove 30, and the limiting sleeve 10 will drive a... The side push rod 11 slides back to its original position. When the top spring 32 is fully reset, the push rod 11 moves back to the original side of the movable plate 5, so that the push rod 11 no longer limits the movable plate 5 through the movable hole 6. Then, the coordinating spring 9 resets and pushes the coordinating block 7, so that the coordinating block 7 drives the one-sided coordinating rod 27 to rotate and reset along the coordinating hole 28. The coordinating block 7 will also drive the movable hole 6 to rotate and reset to a position that does not correspond to the push rod 11 through the movable plate 5. Then, the push rod 11 supports the limiting sleeve 10 to one side of the movable plate 5. With the limiting of the slider 31 and the slide groove 30, the limiting sleeve 10 cannot move. Then, the inner wall of the limiting sleeve 10 limits the outer wall of the rotating wheel 29. This prevents the rotating wheel 29 and the limiting block 12 from moving outwards. Through the cooperation with the locking block 14, and the cooperation with the limiting rail 26 and the limiting groove 25, the structural stability after the switch threshold adjustment is ensured. When pressurization is required, the pressurization assembly 23 is opened. When the internal pressure of the pressurization pipe 24 is greater than that of the heating tank 1, and the internal pressure of the pressurization pipe 24 reaches the opening threshold, the gas pushes the sealing plate 21 open, causing the sealing plate 21 to slide along the mating rod 15. The distance between the sealing plate 21 and the mounting sleeve 19 shortens, allowing the sealing plate 21 and the mounting sleeve 19 to gradually press against the push spring 22. At this time, the sealing plate 21 is in the input groove 17. On the other side, compressed gas enters the flow groove 16 inside the mating rod 15 through the input groove 17. Then, the pressurized gas flows to the other side of the configuration sleeve 19 through the output groove 18 opened on the side wall of the mating rod 15. Then, the pressurized gas enters the heating tank 1 through the output hole 20. When the internal pressure of the heating tank 1 is equal to the output pressure of the pressurizing component 23, or when the internal pressure of the heating tank 1 is greater than the output pressure of the pressurizing component 23, the push spring 22 resets and pushes the sealing plate 21, so that the sealing plate 21 moves and resets, thereby achieving resealing and effectively preventing backflow. At the same time, it also achieves control over the internal pressure value of the heating tank 1 to a certain extent.

[0029] In summary, during the use or operation of the overall equipment: when it is necessary to adjust the opening and closing thresholds, firstly, rotate the movable plate 5 forward, causing the movable plate 5 to drive the movable hole 6 to rotate forward. The movable plate 5 will also drive the coordinating block 7 on one side to rotate forward. Then, the coordinating block 7 will drive the coordinating rod 27 on one side to rotate forward along the coordinating hole 28. The coordinating block 7 will cooperate with the adapter block 8 to compress the coordinating spring 9. When the coordinating spring 9 is compressed to its limit, the movable hole 6 will just rotate to a position concentric with the top rod 11. Then, push the limiting sleeve 10, causing the limiting sleeve 10 to drive the inner slider 31 to slide along the slide groove 30. The limiting sleeve 10 will also drive the top rod 11 on one side to gradually slide into the movable hole 6. At the same time, the limiting sleeve 10 will compress with the top spring 32, causing the limiting sleeve 10 to gradually stop limiting the outer wall of the rotating wheel 29. Then, rotate the control sleeve 3 forward, causing the control sleeve 3 to drive the limiting rail on one side to rotate forward. 26 rotates forward, causing the limiting rail 26 to move the limiting block 12 and the rotating wheel 29 through the limiting groove 25. This causes the rotating wheel 29 to slide out between two adjacent locking blocks 14, and the rotating wheel 29 will drive one side of the limiting block 12 to slide outward along the limiting rail 26 and the limiting groove. At the same time, the limiting block 12 will be stretched outward in conjunction with the tension spring 13. Meanwhile, the control sleeve 3 will drive the inner configuration block 33 to rotate. Then, through the cooperation of the configuration block 33 and the configuration groove 34, the configuration sleeve 19 will be driven to rotate forward. The configuration sleeve 19 will move along the preset threads on the inner wall of the connecting pipe 4 and the fixing pipe 2, so that the sealing plate 21 and the configuration sleeve 19 will slightly compress the push spring 22, causing the push spring 22 to be compressed. At the same time, the push spring 22 will increase the thrust applied to the sealing plate 21, so that the other side of the sealing plate 21 needs to withstand a greater force to open the sealing plate 21.

[0030] Once the switch threshold is adjusted appropriately, stop rotating the control sleeve 3. The control sleeve 3, through the cooperation of the limiting rail 26 and the limiting groove 25, drives the rotating wheel 29 and the limiting block 12 to rotate between the corresponding two locking blocks 14. Then, the tension spring 13 resets and pulls the limiting block 12, causing the limiting block 12 to drive the limiting groove 25 to slide inward along the limiting rail 26. This causes the limiting block 12 to drive one side of the rotating wheel 29 to engage between the corresponding two locking blocks 14. Then, release the limiting sleeve 10. The top spring 32 pushes the limiting sleeve 10 to slide back to its original position. The limiting sleeve 10 then drives the inner slider 31 to slide along the sliding groove 30, and the limiting sleeve 10 will also drive one side of the top rod 1. 1. During the sliding reset, when the top spring 32 is fully reset, the top rod 11 moves back to the original side of the movable plate 5, so that the top rod 11 no longer limits the movable plate 5 through the movable hole 6. Then, the coordinating spring 9 resets and pushes the coordinating block 7, so that the coordinating block 7 drives one side of the coordinating rod 27 to rotate and reset along the coordinating hole 28. The coordinating block 7 will also drive the movable hole 6 to rotate and reset to a position that does not correspond to the top rod 11 through the movable plate 5. Then, the top rod 11 supports the limiting sleeve 10 to one side of the movable plate 5. With the limiting of the slider 31 and the slide groove 30, the limiting sleeve 10 cannot move. Then, the inner wall of the limiting sleeve 10 limits the outer wall of the rotating wheel 29, so that the rotation... Wheel 29 and limiting block 12 cannot move outward, thus ensuring structural stability after the switch threshold adjustment through cooperation with locking block 14 and limiting rail 26 and limiting groove 25. When pressurization is required, pressurization component 23 is opened. When the internal pressure of pressurization pipe 24 is greater than that of heating tank 1 and the internal pressure of pressurization pipe 24 reaches the opening threshold, the gas pushes the sealing plate 21 open, causing the sealing plate 21 to slide along the mating rod 15. The distance between the sealing plate 21 and the configuration sleeve 19 will shorten, so that the sealing plate 21 and the configuration sleeve 19 gradually press the push spring 22. At this time, the sealing plate 21 is in the other position of the input groove 17. The compressed gas enters the flow groove 16 inside the mating rod 15 through the input groove 17. Then, the pressurized gas enters the other side of the configuration sleeve 19 through the output groove 18 opened on the side wall of the mating rod 15. Then, the pressurized gas enters the heating tank 1 through the output hole 20. When the internal pressure of the heating tank 1 is equal to the output pressure of the pressurizing component 23, or when the internal pressure of the heating tank 1 is greater than the output pressure of the pressurizing component 23, the push spring 22 resets and pushes the sealing plate 21, so that the sealing plate 21 moves and resets, thereby achieving resealing and effectively preventing backflow. At the same time, it also achieves control over the internal pressure value of the heating tank 1 to a certain extent.

[0031] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pressurizing device for central heating, comprising a heating tank (1), characterized in that: The heating tank (1) has a fixed pipe (2) at its top. Above the fixed pipe (2) are a control sleeve (3) and a connecting pipe (4). A movable plate (5) is rotatably mounted on the outside of the connecting pipe (4). A movable hole (6) is opened on the movable plate (5). A coordinating block (7) is provided on one side of the movable plate (5). An adapter block (8) is provided on the outside of the connecting pipe (4). A coordinating spring (9) is provided between the adapter block (8) and the coordinating block (7). A limiting sleeve (10) is slidably mounted on the outside of the connecting pipe (4). A top rod (11) is provided on one side of the limiting sleeve (10). The control sleeve (3)... The side is equipped with a limiting block (12) and a tension spring (13). Multiple locking blocks (14) are provided on the outside of the connecting tube (4). A matching rod (15) is provided in the fixed tube (2). A flow groove (16) is opened inside the matching rod (15). An input groove (17) and an output groove (18) are opened on the side wall of the matching rod (15). A configuration sleeve (19) is provided on the inside of the control sleeve (3). Multiple output holes (20) are opened at one end of the fixed tube (2). A sealing plate (21) is slidably provided on the inside of the connecting tube (4). A push spring (22) is movably sleeved on the outside of the matching rod (15).

2. The pressurizing device for central heating according to claim 1, characterized in that: The heating tank (1) is detachably provided with a pressurizing component (23) on one side. The output end of the pressurizing component (23) is connected to a pressurizing pipe (24), and the other end of the pressurizing pipe (24) is connected to a connecting pipe (4).

3. A pressurizing device for central heating according to any one of claims 1 or 2, characterized in that: The limiting block (12) has a limiting groove (25), and a plurality of limiting rails (26) are fixed on one side of the control sleeve (3). The limiting block (12) is slidably installed on the outside of the limiting rails (26) through the limiting groove (25).

4. The pressurizing device for central heating according to claim 3, wherein: The coordinating block (7) is connected to a coordinating rod (27) on one side. The coordinating spring (9) is movably sleeved on the outside of the coordinating rod (27). The adapter block (8) has a coordinating hole (28). One end of the coordinating rod (27) slides into the coordinating hole (28).

5. The pressurizing device for central heating according to claim 4, characterized in that: A rotating wheel (29) is rotatably mounted on one side of the limiting block (12), and the rotating wheel (29) is engaged between two adjacent locking blocks (14).

6. The pressurizing device for central heating according to claim 5, characterized in that: The connecting pipe (4) has a groove (30) on its outer side, and a slider (31) is slidably provided in the groove (30). The slider (31) is fixedly installed inside the limiting sleeve (10).

7. The pressurizing device for central heating according to claim 6, characterized in that: The top rod (11) is movably sleeved with a top spring (32). One end of the top spring (32) is connected to the limiting sleeve (10), and the other end of the top spring (32) is connected to the movable plate (5) in contact.

8. The pressurizing device for central heating according to claim 1, wherein: The control sleeve (3) is fixedly provided with a configuration block (33) on the inner side, and the configuration sleeve (19) is provided with a configuration groove (34) on the outer side, and the configuration block (33) slides in the configuration groove (34).

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