Stress protection device for heat supply pipeline valve

Abstract

The utility model provides a stress protection device for a heat supply pipeline valve, which comprises a switch valve with two ends provided with heat supply pipes, and is characterized in that the two ends of the heat supply pipes are fixedly connected with buffer pipes I, the interiors of the buffer pipes I are rotatably connected with adjusting pipes, and the interiors of the buffer pipes I and the adjusting pipes are provided with water through holes; a plurality of buffering components are rotationally connected into the adjusting pipe, one ends of the buffering components are connected with a synchronous assembly, one end of the synchronous assembly is fixedly connected with a buffering driving shaft, one end of the buffering driving shaft is fixedly connected with a buffering shifting rod, and water flow buffering is achieved through linkage of a buffering baffle and the synchronous assembly; water flow pushes the inclined buffering baffle to rotate to the horizontal position, meanwhile, the chain wheel set and the chain drive the buffering driving shaft to rotate, the second external spring is stretched to generate buffering force, meanwhile, the second spring is located on the outer side of the adjusting pipe and convenient to replace quickly, and the spring rigidity can be adjusted according to requirements to change the buffering effect.

Description

Technical Field

[0001] This utility model relates to the field of heating pipeline technology, and in particular to a stress protection device for valves in heating pipelines. Background Technology

[0002] Heating refers to the artificial supply of heat to a room to maintain a certain temperature and create suitable living or working conditions. Heating requires the use of heating pipelines to transport heat energy from heat sources such as boiler rooms, direct-fired turbine rooms, and heating centers to the building's thermal inlets. Multiple heating pipelines together form a heating network. These pipelines are typically designed according to specific technical standards to ensure efficient and safe heat transmission. When the fluid movement within the heating pipeline changes, or when pipeline valves are operated, small displacements occur in the pipeline, leading to normal and axial stresses. These stresses affect the valves and pipelines. Furthermore, the impact force generated by fast-flowing fluids can also cause excessive stress on the valves, reducing their lifespan.

[0003] A search revealed a Chinese patent with publication number CN210397912U, which discloses a stress protection device for a heating pipeline valve. The device includes a heating pipeline valve, with symmetrically welded support rods inside the inlet of the valve. Each of the two sets of support rods has a sleeve rod welded to one side of its opposite side. The sleeve rods are connected to connecting rods via springs. The two sets of connecting rods are fixedly installed on the left and right sides of a flow-limiting block, respectively. A valve flange is provided at the right end of the heating pipeline valve, and the valve flange is connected to the flange of the protector.

[0004] To address the problem in the aforementioned technologies that the spring force of the flow-limiting block will decline after long-term use, but it is difficult to replace the spring, a stress protection device for heating pipeline valves is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide a stress protection device for valves in heating pipelines to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: A stress protection device for a heating pipeline valve includes a switch valve with heating pipes installed at both ends. The device is characterized in that: a buffer pipe is fixedly connected to both ends of the heating pipe; an adjusting pipe is rotatably connected inside the buffer pipe; water passage holes are opened inside the buffer pipe and the adjusting pipe; multiple buffer components are rotatably connected inside the adjusting pipe; a synchronization component is connected to one end of each buffer component; a buffer drive shaft is fixedly connected to one end of the synchronization component; a buffer lever is fixedly connected to one end of the buffer drive shaft; multiple mounting screws are fixedly connected to both ends of the buffer lever and one end of the adjusting pipe; and a spring is fixedly connected to one end of the mounting screw on one side of the buffer lever and the adjusting pipe by bolts.

[0007] In some embodiments, the buffer component includes buffer baffles and baffle through holes, with a plurality of buffer baffles rotatably connected to an adjusting tube and a plurality of baffle through holes opened within the buffer baffles.

[0008] In some embodiments, the synchronization component includes a synchronization groove, a sprocket set and a chain. The synchronization groove is opened on one side of the adjustment tube. Multiple sprocket sets are rotatably connected in the synchronization groove. The sprocket sets are fixedly connected to the rotating shaft of the buffer baffle. The multiple sprocket sets are connected in pairs through the chain. One end of the buffer drive shaft is fixedly connected to one end of the middle sprocket set.

[0009] In some embodiments, a sealing cap is threadedly connected to one end of the regulating tube.

[0010] In some embodiments, buffer pipes are fixedly connected to both ends of the heating pipe, and buffer plates are slidably connected to one end of the heating pipe.

[0011] In some embodiments, the inner side of the buffer tube is provided with an anti-deviation groove, a guide plate is fixedly connected to the inner side of the anti-deviation groove, a waterproof plate is fixedly connected below the guide plate, and a buffer plate is fixedly connected below the waterproof plate.

[0012] In some embodiments, the upper end of the buffer tube two is fixedly connected to a spring support rod by bolts, and the lower end of the spring support rod is fixedly connected to a spring one, with the lower end of the spring attached to the guide plate.

[0013] In some embodiments, a waterproof gasket is fixedly connected to the upper part of the second buffer tube, and a sealing cap is fixedly connected to the second buffer tube and the upper end by bolts.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. A stress protection device for valves in heating pipelines, which achieves water flow buffering through the linkage of a buffer baffle and a synchronization component: when the valve is opened, the water flow pushes the inclined buffer baffle to rotate to a horizontal position, and at the same time drives the buffer drive shaft to rotate through the sprocket group and chain, stretching the external spring two to generate buffering force. Meanwhile, the spring two is located outside the regulating pipe for easy quick replacement, and the spring stiffness can be adjusted according to the needs to change the buffering effect.

[0016] 2. A stress protection device for valves in heating pipelines, which has the advantages that when the valve is closed, the water hammer shock wave pushes the buffer plate to slide along the anti-deviation groove, compresses the spring to absorb energy, and the spring support rod is fixed by bolts to facilitate the maintenance and replacement of the spring.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the main body of this utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a two-section view of the buffer tube of this utility model;

[0022] Figure 4 This is a diagram of the spring mounting structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the sprocket assembly installation structure of this utility model;

[0024] Figure 6 This is a structural diagram of the buffer baffle of this utility model.

[0025] Figure label:

[0026] 1. Heating pipe; 2. Switch valve; 3. Buffer pipe one; 4. Buffer pipe two; 5. Regulating pipe; 6. Buffer plate; 7. Sealing cover one; 8. Waterproof plate; 9. Guide plate; 10. Spring one; 11. Anti-deviation groove; 12. Spring support rod; 13. Waterproof washer; 14. Sealing cover two; 15. Buffer drive shaft; 16. Buffer lever; 17. Spring two; 18. Mounting screw; 19. Synchronization groove; 20. Sprocket assembly; 21. Chain; 22. Water passage hole; 23. Buffer baffle; 24. Baffle through hole. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] Example 1:

[0030] like Figure 1-6 As shown, a stress protection device for valves in heating pipelines includes a switch valve 2 with heating pipes 1 installed at both ends. The switch valve 2 can be in various forms, such as an electric valve. A buffer pipe 3 is fixedly connected to both ends of the heating pipe 1. An adjusting pipe 5 is rotatably connected inside the buffer pipe 3. Water passage holes 22 are opened inside the buffer pipe 3 and the adjusting pipe 5. The adjusting pipe 5 can rotate, allowing the water passage holes 22 at one end of the buffer pipe 3 and the adjusting pipe 5 to be alternately adjusted to allow the water flow to pass through. Multiple buffer components are rotatably connected inside the adjusting pipe 5. A synchronization component is connected to one end of the multiple buffer components. A buffer drive shaft 15 is fixedly connected to one end of the synchronization component. A buffer lever 16 is fixedly connected to one end of the buffer drive shaft 15. Multiple mounting screws 18 are fixedly connected to both ends of the buffer lever 16 and one end of the adjusting pipe 5, respectively. A spring 17 is fixedly connected to one end of the mounting screw 18 on one side of the buffer lever 16 and the adjusting pipe 5 by bolts.

[0031] The buffer component includes a buffer baffle 23 and a baffle through hole 24. Multiple buffer baffles 23 are rotatably connected to the adjusting tube 5, and multiple baffle through holes 24 are opened in the buffer baffle 23.

[0032] When the switch valve 2 is opened, a large amount of hot water flows through the heating pipe 1. The water flow will wash over the inclined buffer baffle 23 and pass through the baffle through hole 24. At this time, the inclined buffer baffle 23 rotates to be horizontal with the direction of water flow. During this process, the buffer baffle 23 will drive the buffer drive shaft 15 and the buffer lever 16 to rotate through the synchronization component, thereby pulling the second spring 17 to achieve buffering. After long-term use, since the second spring 17 is located on the outside of the regulating pipe 5, the bolts can be quickly removed and replaced. At the same time, the second spring 17 with different elasticity can be replaced to achieve different buffering effects.

[0033] In this embodiment, the synchronization component includes a synchronization groove 19, a sprocket set 20, and a chain 21. The synchronization groove 19 is opened on one side of the adjusting tube 5. Multiple sprocket sets 20 are rotatably connected in the synchronization groove 19. The sprocket sets 20 are fixedly connected to the rotating shaft of the buffer baffle 23. Multiple sprocket sets 20 are connected in pairs through the chain 21. One end of the buffer drive shaft 15 is fixedly connected to one end of the middle sprocket set 20. The sprocket set 20 is composed of two identical sprockets and can be rotated synchronously through multiple chains 21, so that multiple buffer baffles 23 can rotate synchronously.

[0034] In this embodiment, one end of the regulating tube 5 is threadedly connected to a sealing cap 2 14, and the spring 2 17 can be quickly replaced by rotating to open the sealing cap 2 14.

[0035] In this embodiment: when the switch valve 2 is opened, a large amount of hot water flows through the heating pipe 1, and the water flow will wash over the inclined buffer baffle 23 and pass through the baffle through hole 24. At this time, the inclined buffer baffle 23 rotates to be horizontal with the water flow direction. During this process, the buffer baffle 23 will drive the buffer drive shaft 15 and the buffer lever 16 to rotate through the synchronization component, thereby pulling the second spring 17 to achieve buffering. After long-term use, since the second spring 17 is located outside the regulating pipe 5, the bolts can be quickly removed and replaced. At the same time, the second spring 17 with different elasticity can be replaced to achieve different buffering effects. The sprocket group 20 is composed of two identical sprockets, which can be rotated synchronously by multiple chains 21, so that multiple buffer baffles 23 can be rotated synchronously. The second spring 17 can be quickly replaced by rotating to open the sealing cover 14.

[0036] Example 2:

[0037] A stress protection device for valves in heating pipelines is provided in this embodiment, which is an improvement upon Embodiment 1, as follows: Figure 1-6 As shown,

[0038] In this embodiment, buffer pipes 4 are fixedly connected to both ends of the heating pipe 1. Buffer plate 6 is slidably connected to one end of the buffer pipe 4 and the heating pipe 1. Anti-deviation groove 11 is opened on the inner side of the buffer pipe 4. Guide plate 9 is fixedly connected to the inner side of the anti-deviation groove 11. Waterproof plate 8 is fixedly connected below the guide plate 9. Buffer plate 6 is fixedly connected below the waterproof plate 8. Spring support rod 12 is fixedly connected to the upper end of the buffer pipe 4 by bolts. Spring 10 is fixedly connected below the spring support rod 12. The lower end of spring 10 is attached to the guide plate 9.

[0039] When the switch valve 2 is closed, the water hammer effect will damage the pipeline. At this time, the water shock wave can squeeze the buffer plate 6 to move into the buffer tube 4, and then squeeze the spring 10 to contract and use the elastic force to buffer. The waterproof plate 8 is preferably made of rubber, which can play a role in preventing water leakage. When the spring 10 needs to be replaced, the spring support rod 12 can be removed to achieve quick replacement of the spring 10.

[0040] A waterproof gasket 13 is fixedly connected to the top of buffer tube 24, and a sealing cap 17 is fixedly connected to the top end of buffer tube 24 by bolts.

[0041] The waterproof gasket 13 further prevents water leakage, while the bolt-fixed sealing cap 7 allows for quick disassembly.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A stress protection device for a heating pipe valve, comprising an on-off valve (2) having a heating pipe (1) installed at both ends, characterized in that: The both ends of heat supply pipe (1) are fixedly connected with buffer pipe one (3), buffer pipe one (3) is rotatably connected with adjusting pipe (5), buffer pipe one (3) and adjusting pipe (5) are internally provided with water through hole (22), a plurality of buffer components are rotatably connected in adjusting pipe (5), one end of the plurality of buffer components is connected with synchronous assembly, one end of buffer drive shaft (15) is fixedly connected with synchronous assembly, one end of buffer drive shaft (15) is fixedly connected with buffer lever (16), a plurality of mounting screws (18) are fixedly connected with buffer lever (16) and one end of adjusting pipe (5) respectively, one end of mounting screw (18) on one side of buffer lever (16) and adjusting pipe (5) is fixedly connected with spring two (17) through bolt.

2. A stress protection device for a heating conduit valve according to claim 1, characterized in that: The buffer component comprises buffer baffle (23) and baffle through hole (24), a plurality of buffer baffles (23) are rotatably connected in adjusting pipe (5), a plurality of baffle through holes (24) are opened in buffer baffle (23).

3. A stress protection device for a heating conduit valve according to claim 2, characterized in that: The synchronous assembly comprises synchronous groove (19), chain wheel group (20) and chain (21), one side of adjusting pipe (5) is provided with synchronous groove (19), a plurality of chain wheel groups (20) are rotatably connected in synchronous groove (19), chain wheel group (20) is fixedly connected on the rotating shaft of buffer baffle (23), a plurality of chain wheel groups (20) are drivingly connected two by two through chain (21), one end of buffer drive shaft (15) is fixedly connected with one end of middle chain wheel group (20).

4. A stress protection device for a heat supply pipeline valve according to claim 1, characterized in that: One end of adjusting pipe (5) is threadedly connected with blocking cover two (14).

5. A stress protection device for a heat supply pipeline valve according to claim 1, characterized in that: The both ends of heat supply pipe (1) are fixedly connected with buffer pipe two (4), buffer pipe two (4) and heat supply pipe (1) are slidingly connected with buffer plate (6) at one end.

6. A stress protection device for a heat supply pipeline valve according to claim 5, characterized in that: The inner side of buffer pipe two (4) is provided with anti-deviation groove (11), the inner side of anti-deviation groove (11) is fixedly connected with guide plate (9), waterproof plate (8) is fixedly connected below guide plate (9), and buffer plate (6) is fixedly connected below waterproof plate (8).

7. A stress protection device for a heat supply pipeline valve according to claim 6, characterized in that: Spring support rod (12) is fixedly connected above buffer pipe two (4) through bolt, spring one (10) is fixedly connected below spring support rod (12), and the lower end of spring one (10) is attached to guide plate (9).

8. A stress protection device for a heat supply pipeline valve according to claim 7, characterized in that: Waterproof washer (13) is fixedly connected above buffer pipe two (4), and blocking cover one (7) is fixedly connected above buffer pipe two (4) and one end through bolt.

Images