Circulating pump large and small head pipeline pressure regulating structure
By designing the pressure regulating structure of the circulating pump large-head pipe, and using the pressure regulating mechanism and the driving mechanism to achieve free pressure regulating of the variable diameter pipeline, the problem of inconvenience in purchasing and replacing multiple specifications in the prior art is solved, and the practicality and stability of the equipment are improved.
Patent Information
- Application Number
- CN202422428950.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The fixed diameter of the existing variable diameter pipe causes users to purchase multiple specifications to meet different transformer requirements, which increases costs and is inconvenient to replace and operate.
A pressure regulating structure of the large and small pipe head of the circulating pump is designed, including the main body of the variable diameter pipeline, the water inlet and drainage end connecting flange, limit slide rod, pressure regulating moving block and driving mechanism. By adjusting the coordination between the threaded rod and the driving worm gear, the distance of the inner cavity of the pipeline can be adjusted and free pressure regulating is achieved.
It realizes free pressure regulation operation according to actual needs, improves the practicality and stability of the equipment, reduces replacement costs, and extends the service life of the equipment.
Smart Images
Figure CN223152811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline pressure regulation, in particular to a pipeline pressure regulation structure for a circulating pump reducer. Background Technique
[0002] A reducing pipeline, that is, a pipeline with different diameters at both ends, its basic principle is to adjust the flow rate and pressure of the fluid by changing the pipeline diameter. This design is not only applicable to the refrigeration system in cold storage construction, but also plays an important role in other fields such as drip irrigation systems and fresh air systems. In the drip irrigation system, due to the problem of uneven water pressure in the branch pipes caused by the height difference of the terrain and the requirement of irrigation uniformity not being met, this problem can be effectively solved by reducing pressure through diameter variation. At present, the diameters of both ends of the reducing pipelines used on the market are fixed, which makes users need to purchase various specifications of reducing pipelines to meet different pressure variation requirements in the actual use process. This not only increases the cost for users, but also requires users to replace the reducing pipelines, bringing inconvenience to users' use.
[0003] Therefore, we propose a pipeline pressure regulation structure for a circulating pump reducer. Content of the Utility Model
[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a pipeline pressure regulation structure for a circulating pump reducer.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme. A pipeline pressure regulation structure for a circulating pump reducer includes a reducing pipeline main body, and a water inlet end connecting flange and a drainage end connecting flange respectively arranged at the left and right ends of the reducing pipeline main body. At the top of the inner cavity wall surface of the reducing pipeline main body, two installation support frames are fixedly connected at the left and right positions. Between the ends of the two installation support frames located in the middle of the inner cavity of the reducing pipeline main body, a horizontally arranged limiting slide bar is fixedly installed. A pressure regulation mechanism is arranged on the limiting slide bar. The pressure regulation mechanism includes a pressure regulation moving block slidably connected to the outer wall surface of the limiting slide bar and an adjusting threaded rod threadedly connected to the middle of the pressure regulation moving block. At the bottom end of the inner part of the installation support frame located on the left side, a driving cavity is opened. A driving mechanism for driving the adjusting threaded rod to rotate is arranged inside the driving cavity. The driving mechanism includes a driving worm rotatably connected to the inside of the driving cavity. The left end of the adjusting threaded rod extends into the driving cavity and is fixedly installed with a driving worm gear meshing with the driving worm.
[0006] Further, the left end of the pressure regulation moving block is conical in shape.
[0007] Further, a limiting slide hole and an adjusting threaded hole are sequentially penetrated from top to bottom in the middle of the inner side of the pressure regulation moving block.
[0008] Further, the outer wall surface of the limiting slide bar is slidably connected inside the limiting slide hole.
[0009] Furthermore, the adjusting threaded rod is horizontally threadedly connected inside the adjusting threaded hole.
[0010] Furthermore, the left and right ends of the adjusting threaded rod are respectively rotationally connected to the corresponding positions on the outer wall surfaces of the bottoms of the two installation support frames.
[0011] Furthermore, a driving rotating rod corresponding to the top position of the installation support frame located on the left side is rotationally connected to the left part of the top of the outer wall surface of the variable-diameter pipe body.
[0012] Furthermore, the bottom end of the driving rotating rod sequentially passes through the left part of the top of the outer wall surface of the variable-diameter pipe body and the top wall surface of the installation support frame located on the left side and extends into the driving cavity.
[0013] Furthermore, one end of the driving rotating rod located inside the driving cavity is fixedly connected to the top end of the driving worm.
[0014] Furthermore, the driving worm and the driving rotating rod are on the same axis.
[0015] Furthermore, a driving rotating block is fixedly installed at the top end of the driving rotating rod.
[0016] Furthermore, a hexagonal groove is formed in the middle of the top wall surface of the driving rotating block.
[0017] The utility model provides a pressure regulating structure for a circulating pump reducer pipe. It has the following beneficial effects:
[0018] 1. For this pressure regulating structure of the circulating pump reducer pipe, by setting a pressure regulating mechanism and a driving mechanism, during use, the device is fixedly installed between the circulating pump and the conveying pipeline through the inlet end connecting flange and the drain end connecting flange. At this time, the circulating pump introduces water into the left part of the inner cavity of the variable-diameter pipe body through the inlet end connecting flange. After the water passes through the position between the inner cavity wall surface of the variable-diameter pipe body and the outer wall surface of the pressure regulating moving block, it is then discharged into the conveying pipeline through the drain end connecting flange. When it is necessary to perform a pressure regulating operation on the inside of the variable-diameter pipe body, insert a hexagonal wrench into the hexagonal groove to drive the driving rotating block to rotate. The driving rotating block drives the driving worm to rotate through the driving rotating rod, forcing the driving worm gear meshing with the driving worm to drive the adjusting threaded rod to rotate. Furthermore, it forces the pressure regulating moving block threadedly connected to the outer surface of the adjusting threaded rod through the adjusting threaded hole to move left and right along the outer surface of the limiting sliding rod for position adjustment, so that the distance between the outer wall surface of the pressure regulating moving block and the inner cavity wall surface of the variable-diameter pipe body changes, completing the adjustment of the flow rate of the internal water flow of the device and the pressure adjustment inside the device. The above operations are simple and practical, and the structure is reasonable and compact, enabling the device to perform free pressure regulating operations according to actual needs and improving the practicability of the device.
[0019] 2. For this reducing pipe pressure regulating structure of the circulating pump, by setting the pressure regulating moving block, since the left end of the pressure regulating moving block is conical, its conical inclined surface can reduce the impact of water flow on the whole pressure regulating moving block, making the pressure regulating moving block more stable, improving the stability of the equipment structure and prolonging the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model, so they do not have substantial technical significance.
[0021] Figure 1 It is a sectional view of the reducing pipe pressure regulating structure of the circulating pump of the present utility model;
[0022] Figure 2 It is a sectional view of the driving mechanism of the present utility model;
[0023] Figure 3 is Figure 2 an enlarged schematic view of A in
[0024] Legend Explanation:
[0025] 10. Reducing pipe main body; 11. Inlet end connecting flange; 12. Drain end connecting flange; 13. Installation support frame; 14. Limit slide bar; 15. Adjusting threaded rod; 16. Pressure regulating moving block; 17. Limit slide hole; 18. Adjusting threaded hole; 19. Driving cavity; 20. Driving worm gear; 21. Driving worm; 22. Driving rotating rod; 23. Driving rotating block; 24. Hexagonal groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] A reducing pipe pressure regulating structure of a circulating pump, as Figures 1-3As shown in the figure, it includes a reducing pipe body 10, an inlet end connecting flange 11 and a drain end connecting flange 12 which are respectively arranged at the left and right ends of the reducing pipe body 10. At the top of the inner cavity wall surface of the reducing pipe body 10, two installation support frames 13 are fixedly connected at the left and right sides. Between the ends of the two installation support frames 13 located in the middle of the inner cavity of the reducing pipe body 10, a horizontal limiting slide bar 14 is fixedly installed. A pressure regulating mechanism is arranged on the limiting slide bar 14. The pressure regulating mechanism includes a pressure regulating moving block 16 which is slidably connected to the outer wall surface of the limiting slide bar 14 and an adjusting threaded rod 15 which is threadedly connected to the middle part of the pressure regulating moving block 16. The left end of the pressure regulating moving block 16 is conical. A limiting slide hole 17 and an adjusting threaded hole 18 are successively opened from top to bottom in the middle of the inner side of the pressure regulating moving block 16. The outer wall surface of the limiting slide bar 14 is slidably connected inside the limiting slide hole 17. The adjusting threaded rod 15 is horizontally threadedly connected inside the adjusting threaded hole 18. The left and right ends of the adjusting threaded rod 15 are respectively rotatably connected to the corresponding positions on the bottom outer wall surfaces of the two installation support frames 13. A driving cavity 19 is opened at the bottom end inside the installation support frame 13 located on the left side. A driving mechanism for driving the adjusting threaded rod 15 to rotate is arranged inside the driving cavity 19. The driving mechanism includes a driving worm 21 which is rotatably connected inside the driving cavity 19. The left end of the adjusting threaded rod 15 extends into the driving cavity 19 and is fixedly installed with a driving worm wheel 20 which meshes with the driving worm 21. The left part of the top end of the outer wall surface of the reducing pipe body 10 is rotatably connected with a driving rotating rod 22 corresponding to the top position of the installation support frame 13 located on the left side. The bottom end of the driving rotating rod 22 successively penetrates through the left part of the top end of the outer wall surface of the reducing pipe body 10 and the top wall surface of the installation support frame 13 located on the left side and extends into the driving cavity 19. The end of the driving rotating rod 22 located inside the driving cavity 19 is fixedly connected to the top end of the driving worm 21. The driving worm 21 and the driving rotating rod 22 are on the same axis. A driving rotating block 23 is fixedly installed at the top end of the driving rotating rod 22. A hexagonal groove 24 is opened at the middle position of the top wall surface of the driving rotating block 23.
[0027] Working principle of the utility model: During use, the device is fixedly installed between the circulating pump and the conveying pipeline through the water inlet end connecting flange 11 and the water drainage end connecting flange 12. At this time, the circulating pump introduces water into the left part of the inner cavity of the reducing pipeline body 10 through the water inlet end connecting flange 11. After the water passes through the position between the inner wall surface of the reducing pipeline body 10 and the outer wall surface of the pressure regulating moving block 16, it is then discharged into the conveying pipeline through the water drainage end connecting flange 12. When it is necessary to perform a pressure regulating operation on the inside of the reducing pipeline body 10, a hexagonal wrench is inserted into the hexagonal groove 24 to drive the driving rotating block 23 to rotate. The driving rotating block 23 drives the driving worm 21 to rotate through the driving rotating rod 22, forcing the driving worm gear 20 meshing with the driving worm 21 to drive the adjusting threaded rod 15 to rotate. Furthermore, the pressure regulating moving block 16 threadedly connected to the outer surface of the adjusting threaded rod 15 through the adjusting threaded hole 18 is forced to move left and right along the outer surface of the limiting slide rod 14 for position adjustment, so that the distance between the outer wall surface of the pressure regulating moving block 16 and the inner wall surface of the reducing pipeline body 10 changes, completing the adjustment of the flow rate of the internal water flow of the device and enabling the device to adjust the internal pressure. The above operations are simple and practical, and the structure is reasonable and compact, enabling the device to perform free pressure regulating operations according to actual needs and improving the practicability of the device; since the left end of the pressure regulating moving block 16 is conical, its conical inclined surface can reduce the impact of the water flow on the overall pressure regulating moving block 16, enabling the pressure regulating moving block 16 to be placed more stably, improving the stability of the device structure and extending the service life of the device.
[0028] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.
Claims
1. A pressure regulating structure for a circulating pump reducing pipe, comprising a reducing pipe main body (10) and a water inlet end connecting flange (11) and a water discharge end connecting flange (12) respectively arranged at the left and right ends of the reducing pipe main body (10), characterized in that: On the left and right sides of the top of the inner cavity wall surface of the variable-diameter pipe body (10), two installation support frames (13) are fixedly connected. Between the ends of the two installation support frames (13) in the middle of the inner cavity of the variable-diameter pipe body (10), a horizontally arranged limiting slide bar (14) is fixedly installed. A pressure regulating mechanism is arranged on the limiting slide bar (14). The pressure regulating mechanism includes a pressure regulating moving block (16) slidably connected to the outer wall surface of the limiting slide bar (14) and an adjusting threaded rod (15) threadedly connected to the middle of the pressure regulating moving block (16). At the inner bottom end of the installation support frame (13) located on the left side, a driving cavity (19) is opened. A driving mechanism for driving the adjusting threaded rod (15) to rotate is arranged inside the driving cavity (19). The driving mechanism includes a driving worm (21) rotatably connected to the inside of the driving cavity (19). The left end of the adjusting threaded rod (15) extends into the driving cavity (19) and is fixedly installed with a driving worm gear (20) meshing with the driving worm (21).
2. The pressure regulating structure of the circulating pump reducing pipe according to claim 1, characterized in that: The left end of the pressure regulating moving block (16) is conical. A limiting slide hole (17) and an adjusting threaded hole (18) are successively penetrated from top to bottom in the middle of the inner side of the pressure regulating moving block (16).
3. The pressure regulating structure of the reducing pipe of the circulating pump according to claim 2, characterized in that: The outer wall surface of the limiting slide bar (14) is slidably connected inside the limiting slide hole (17). The adjusting threaded rod (15) is horizontally threadedly connected inside the adjusting threaded hole (18). The left and right ends of the adjusting threaded rod (15) are respectively rotatably connected to the corresponding positions on the outer bottom wall surfaces of the two installation support frames (13).
4. The pressure regulating structure of the circulating pump reducing pipe according to claim 1, characterized in that: On the left part of the top of the outer wall surface of the variable-diameter pipe body (10), a driving rotating rod (22) corresponding to the top of the installation support frame (13) located on the left side is rotatably connected. The bottom end of the driving rotating rod (22) successively penetrates the left part of the top of the outer wall surface of the variable-diameter pipe body (10) and the top wall surface of the installation support frame (13) located on the left side and extends into the driving cavity (19). The end of the driving rotating rod (22) located inside the driving cavity (19) is fixedly connected to the top end of the driving worm (21).
5. The pressure regulating structure of the circulating pump reducer pipeline according to claim 4, characterized in that: The driving worm (21) and the driving rotating rod (22) are on the same axis.
6. The pressure regulating structure of the circulating pump reducer pipeline according to claim 5, characterized in that: A driving rotating block (23) is fixedly installed at the top end of the driving rotating rod (22). A hexagonal groove (24) is opened at the middle position of the top wall surface of the driving rotating block (23).