Elbow with impact-resistant structure
By introducing a coordinated design of structures such as bends, side frames, and buffer plates into the elbow, a dual mechanical and hydraulic buffer system is constructed, which solves the problem of insufficient impact resistance of the elbow and improves stability and safety under high pressure and high impact environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YOUNET YUKAI NEW MATERIALS CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-21
Smart Images

Figure CN224533809U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elbow technology, and in particular to an elbow with an impact-resistant structure. Background Technology
[0002] Elbows, as pipe fittings, play a vital role in fluid transmission systems. As key components connecting pipes in different directions, their structural strength and durability have a decisive impact on the overall performance and safety of the entire pipeline system. Especially in the core area of extreme and harsh operating conditions such as high pressure and high impact, existing elbows have gradually revealed a series of obvious limitations and technical problems when handling fluid transmission in complex environments.
[0003] Specifically, the existing utility model patent CN204922339U discloses an elbow that includes an inlet end and an outlet end connected to an external pipeline, respectively. An arc-shaped pipe connects the inlet end and the outlet end, and the outer layer of the arc-shaped pipe is a cast steel layer, with a wear-resistant layer on the inner surface of the cast steel layer. When using the elbow provided by this utility model, because the outer layer of the arc-shaped pipe is a cast steel layer and the inner layer is a wear-resistant layer, the cast steel layer has good impact toughness, and the wear-resistant layer can improve the wear resistance of the elbow. Therefore, this composite elbow structure combines the advantages of both, enhancing the wear resistance, corrosion resistance, and impact toughness of the elbow's interior. It can meet the requirements for wear resistance and corrosion resistance under extreme and harsh working conditions such as high pressure and high impact, thus greatly extending the service life of the elbow, reducing the frequency of elbow replacement during operation, and thereby reducing production costs.
[0004] However, most existing elbows have a simple structure, only providing the basic function of water flow, and lack effective impact resistance design. This makes them prone to damage in practical applications, especially under significant pressure fluctuations or external impacts, thus greatly reducing their service life. This insufficient impact resistance not only increases the frequency of elbow replacement and maintenance costs, but also may lead to leaks or other safety accidents in the pipeline system due to unexpected elbow failure, posing a potential threat to the safe operation of the entire pipeline network. Therefore, to address the many shortcomings of existing technologies, we urgently need an innovative elbow with an impact-resistant structure to solve these problems. Summary of the Invention
[0005] The purpose of this utility model is to provide an elbow with an impact-resistant structure, which solves the problem that most elbows in the prior art have a simple structure, only have the basic function of water flow, and lack effective impact-resistant design. As a result, they are prone to damage in practical applications, especially when subjected to large pressure fluctuations or external impacts, which greatly reduces the service life of the elbow.
[0006] To achieve the above objectives, this utility model provides an elbow with an impact-resistant structure, including a bend, and a side frame fixedly connected to one side of the bend, with a buffer plate slidably connected to the inner side of the side frame.
[0007] Both sides of the buffer plate are fixedly connected to support rods, and one end of each support rod penetrates the side wall of the bend. An impact plate is fixedly connected to the inner end of each support rod. A water tank is fixedly connected to one side of the side frame, and a squeezing plate is provided inside the water tank. Several connecting rods are fixedly connected to the top of the squeezing plate, and one end of each connecting rod is fixedly connected to the top of the buffer plate. Slider blocks are fixedly connected to both sides of the squeezing plate, and both sliders are slidably connected to the side wall of the side frame through a sliding groove. One side of each slider is elastically connected to the inner wall of the two sliding grooves through an elastic plate.
[0008] One side of the water tank is connected to a connecting pipe, and one end of the connecting pipe is connected to one end of the bend pipe. A valve body is installed on one end of the connecting pipe.
[0009] One side of the buffer plate is elastically connected to the inner wall of the side frame through several compression springs, and the other side of the buffer plate is fixedly connected to the inner wall of the side frame through several dampers.
[0010] Several inclined blocks are fixedly connected to the inner wall of the bend near the inlet.
[0011] The curved pipe has a fixed sleeve fitted onto one end, an arc-shaped plate fixedly connected to one side of the fixed sleeve, a combing frame on the inner side of the curved pipe, and a support rod fixedly connected to the top of the combing frame. The top of the support rod passes through one side of the curved pipe and the arc-shaped plate in sequence.
[0012] The top side of the arc-shaped plate is fixedly connected to a limiting plate, and a limiting rod is provided on one side of the limiting plate. The limiting plate and the top of the support rod are both provided with limiting grooves for use with the limiting rod. Several limiting grooves are provided on the limiting plate.
[0013] This utility model discloses an elbow with an impact-resistant structure. Through the coordinated arrangement of components such as the bend, side frame, buffer plate, support rod, impact plate, water tank, extrusion plate, connecting rod, slider, groove, and elastic plate, a highly efficient and stable impact-resistant buffer system is constructed, significantly improving the elbow's impact resistance and overall structural stability under complex working conditions. Secondly, the linkage design between the impact plate and the buffer plate allows the elbow to respond quickly to impacts, absorbing most of the impact energy through a dual mechanism of mechanical and hydraulic buffering, avoiding the concentrated impact damage caused by the simple structure of traditional elbows. This design addresses several issues, significantly extending the service life of the elbow. Firstly, the interconnected design between the water tank and the elbow simplifies the structural layout and ensures the real-time responsiveness of the hydraulic buffer system, making the buffering process smoother and more reliable. Secondly, the structure does not require a complex external power system; it relies solely on the fluid's own kinetic energy to complete the buffering action, reducing maintenance costs and improving the equipment's practicality and safety. Finally, the combined application of multi-point buffering and multiple shock absorption mechanisms effectively reduces vibration and noise caused by impacts, improves the operating environment of the pipeline system, and lowers the probability of safety hazards such as leakage and fatigue fracture. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0015] Figure 1 This is a schematic diagram of the overall main view structure of an embodiment of this utility model.
[0016] Figure 2 This is a side view structural diagram of an embodiment of the present utility model.
[0017] Figure 3 This is a top view of an embodiment of the present invention.
[0018] Figure 4 This is a schematic diagram of the fixing sleeve and its structure according to an embodiment of the present utility model.
[0019] Figure 5 This is a schematic diagram of the inner structure of the bend in an embodiment of this utility model.
[0020] Figure 6 This is a schematic diagram of the impact plate structure according to an embodiment of the present invention.
[0021] Figure 7 This is a schematic diagram of the side frame and its structure according to an embodiment of the present utility model.
[0022] 1. Bend; 2. Inclined block; 3. Fixing sleeve; 4. Arc plate; 5. Support rod; 6. Limiting plate; 7. Water tank; 8. Connecting rod; 9. Buffer plate; 10. Slider; 11. Slide groove; 12. Elastic plate; 13. Connecting pipe; 14. Valve body; 15. Side frame; 16. Limiting rod; 17. Extrusion plate; 18. Limiting groove; 19. Combing frame; 20. Support rod; 21. Impact plate; 22. Extrusion spring; 23. Damper. Detailed Implementation
[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0024] Please see Figures 1-7 An impact-resistant elbow includes a bend 1, a side frame 15 fixedly connected to one side of the bend 1, and a buffer plate 9 slidably connected to the inner side of the side frame 15; support rods 20 are fixedly connected to both sides of the buffer plate 9, and one end of each support rod 20 penetrates the side wall of the bend 1, and an impact plate 21 is fixedly connected to the inner end of each support rod 20; a water tank 7 is fixedly connected to one side of the side frame 15, and a pressing plate 17 is provided inside the water tank 7; several connecting rods 8 are fixedly connected to the top of the pressing plate 17, and one end of each connecting rod 8 is fixedly connected to the top of the buffer plate 9; sliders 10 are fixedly connected to both sides of the pressing plate 17, and both sliders 10 are slidably connected to the side wall of the side frame 15 through a sliding groove 11, wherein one side of each slider 10 is elastically connected to the inner wall of the two sliding grooves 11 through an elastic plate 12.
[0025] First, the bend 1 is installed as a key connecting component in the fluid transmission system, allowing water or other fluid media to enter the bend 1 from the inlet end and exit from the outlet end after changing the flow direction through the arc-shaped pipe. When the fluid passes through the inside of the bend 1, the impact force generated by the sudden change in fluid pressure or direction will directly act on the inner wall of the bend 1. At this time, a buffer plate 9 is installed inside the side frame 15 on one side of the bend 1. The buffer plate 9 is connected to the impact plate 21 located inside the bend 1 through the support rods 20 fixed on both sides. Therefore, when the water flow impacts the impact plate 21, the impact force will be transmitted to the buffer plate 9 through the support rods 20, causing it to move towards the water tank 7. The buffer plate 9 moves... In the process, the sliders 10 fixed on both sides slide in the groove 11 and compress the elastic plate 12, using the elastic force of the elastic plate 12 to achieve initial buffering and shock absorption; at the same time, the buffer plate 9 continues to push the extrusion plate 17 in the water tank 7, and the water tank 7 is connected to the inside of the bend 1. The liquid medium filled in it forms a certain hydraulic damping effect on the extrusion plate 17, thereby further absorbing and dispersing the impact energy; the multiple connecting rods 8 connected to the top of the extrusion plate 17 are connected to the buffer plate 9, ensuring the linkage and stability of the entire buffer system, so that when the bend faces harsh working conditions such as high pressure and high impact, it can effectively reduce the risk of structural damage caused by impact through the dual mechanism of mechanical buffering and hydraulic buffering.
[0026] Furthermore, a connecting pipe 13 is connected to one side of the water tank 7, and one end of the connecting pipe 13 is connected to one end of the bend 1. A valve body 14 is installed on one end of the connecting pipe 13. During system operation, the opening and closing of the connecting pipe 13 can be controlled by the valve body 14, thereby realizing the function of adjusting the liquid level inside the water tank 7 or replacing the buffer medium. This structure improves the convenience of equipment maintenance and the adaptability of the buffer system, achieving the effects of easy maintenance, flexible adjustment of buffer performance, and extension of equipment service life.
[0027] Furthermore, one side of the buffer plate 9 is elastically connected to the inner wall of the side frame 15 through several compression springs 22, and another side of the buffer plate 9 is fixedly connected to the inner wall of the side frame 15 through several dampers 23. Under the action of impact force, when the buffer plate 9 moves, it can simultaneously utilize the elasticity of the springs and the shock absorption function of the dampers 23 to achieve a dual buffering effect, effectively absorbing impact energy of different intensities. This structure enhances the overall impact resistance, improves the stability and reliability of the buffer response, and achieves the effect of improving the fatigue resistance and safety of the equipment.
[0028] Furthermore, several inclined blocks 2 are fixedly connected to the inner wall of the bend 1 near the inlet. In the initial stage of fluid entering the bend 1, the inclined blocks 2 can initially guide the flow direction, reduce the impact intensity of the fluid directly impacting the inner wall of the bend, and reduce local wear and stress concentration. This structure optimizes the fluid dynamics characteristics, reduces the wear rate inside the bend, and achieves the effect of extending the service life of the bend and improving the stability of fluid transmission.
[0029] Furthermore, a fixing sleeve 3 is fitted onto one end of the bend 1, and an arc-shaped plate 4 is fixedly connected to one side of the fixing sleeve 3. A combing frame 19 is provided on the inner side of the bend 1, and a support rod 5 is fixedly connected to the top of the combing frame 19. The top of the support rod 5 passes through one side of the bend 1 and the arc-shaped plate 4 in sequence. This structure provides auxiliary support and positioning function for the bend, ensuring that the bend maintains good structural stability during installation and preventing displacement or deformation caused by external forces. This structure improves the installation accuracy and safety of the bend under complex working conditions, achieving the effect of enhancing structural stability and improving installation efficiency.
[0030] Furthermore, a limiting plate 6 is fixedly connected to one side of the top of the arc plate 4, and a limiting rod 16 is provided on one side of the limiting plate 6. Limiting grooves 18 that cooperate with the limiting rod 16 are provided on both the limiting plate 6 and the top of the support rod 5. Several limiting grooves 18 are provided on the limiting plate 6. In actual installation or use, the height of the support rod 5 can be precisely adjusted by inserting the limiting rod 16 into the limiting grooves 18 at different positions, thereby meeting the needs of different pipeline layouts. This structure improves the adaptability of the elbow to different installation angles and spatial layouts, and achieves the effects of enhancing equipment versatility, improving assembly flexibility and ease of operation.
[0031] In summary:
[0032] In practical use, the bend 1 is first installed as a key connecting component in the fluid transmission system, allowing water or other fluid media to enter the bend 1 from the inlet end and exit from the outlet end after changing the flow direction through the arc-shaped pipe. When the fluid passes through the inside of the bend 1, the impact force generated by the sudden change in fluid pressure or direction will directly act on the inner wall of the bend 1. At this time, a buffer plate 9 is provided inside the side frame 15 on one side of the bend 1. The buffer plate 9 is connected to the impact plate 21 located inside the bend 1 through the support rods 20 fixed on both sides. Therefore, when the water flow impacts the impact plate 21, the impact force will be transmitted to the buffer plate 21 through the support rods 20. The impact plate 9 is moved towards the water tank 7. During its movement, the impact plate 9 first slides in the groove 11 via the sliders 10 fixed on both sides, compressing the elastic plate 12 and utilizing the elastic force of the elastic plate 12 to achieve initial buffering and shock absorption. At the same time, the impact plate 9 continues to push the compression plate 17 inside the water tank 7. The water tank 7 is connected to the inside of the bend pipe 1, and the liquid medium inside it creates a certain hydraulic damping effect on the compression plate 17, thereby further absorbing and dispersing the impact energy. Multiple connecting rods 8 connected to the top of the compression plate 17 are connected to the impact plate 9, ensuring the linkage and stability of the entire buffer system. In addition, a connecting pipe is provided on one side of the water tank 7. 13, one end of which is connected to one end of the bend 1, and a valve body 14 is installed on one end of the connecting pipe 13, which can be used to adjust the liquid level of the water tank 7 or replace the buffer medium; one side of the buffer plate 9 is also elastically connected to the inner wall of the side frame 15 through several compression springs 22, and fixedly connected to the inner wall of the side frame 15 through several dampers 23, so that the buffer plate 9 can simultaneously utilize the elasticity of the springs and the shock absorption function of the dampers 23 to achieve a double buffering effect when subjected to impact; several inclined blocks 2 are fixedly connected to the inner wall of the bend 1 near the inlet, which are used to initially guide the fluid and reduce the initial impact intensity; bend A fixing sleeve 3 is fitted onto one end of the bend, and an arc-shaped plate 4 is fixedly connected to one side of the fixing sleeve 3 to provide an auxiliary support structure for the bend. A comb frame 19 is provided on one side of the inner side of the bend 1, and a support rod 5 is fixedly connected to its top. The top of the support rod 5 passes through one side of the bend 1 and the arc-shaped plate 4 in sequence to form a stable support system. A limit plate 6 is fixedly connected to one side of the top of the arc-shaped plate 4. A limit rod 16 is provided on one side of the limit plate 6. Multiple limit grooves 18 are opened on the top of both the limit plate 6 and the support rod 5. The height of the support rod 5 can be adjusted by inserting the limit rod 16 into the limit grooves 18 at different positions to adapt to different installation angles and spatial layout requirements.Through the coordinated arrangement of the elbow 1, side frame 15, buffer plate 9, support rod 20, impact plate 21, water tank 7, compression plate 17, connecting rod 8, slider 10, slide groove 11, and elastic plate 12, a highly efficient and stable anti-impact buffer system is constructed, significantly improving the elbow's ability to withstand impact loads under high pressure and high impact environments, effectively preventing structural damage caused by concentrated impact, and thus greatly extending the elbow's service life. Secondly, the design of connecting the water tank 7 and the elbow 1 via the connecting pipe 13 and the valve body 14 not only facilitates daily maintenance and buffer medium replacement, but also allows for flexible adjustment of buffer performance according to actual working conditions, improving the equipment's adaptability and operability. Thirdly, the buffer plate 9, compression spring 22, and damper... The combined structure of 23 achieves the dual function of mechanical buffering and dynamic damping, enhancing the stability and reliability of the overall buffer response and effectively improving the fatigue resistance and operational safety of the equipment. In addition, the design of the inclined block 2 on the inner wall of the bend 1 optimizes the fluid dynamics characteristics, reduces the direct impact of the fluid on the inner wall of the bend, reduces local wear and stress concentration, and further improves the durability of the bend. Finally, the structure composed of the fixing sleeve 3, arc plate 4, comb frame 19, support rod 5, limiting plate 6, limiting rod 16, and limiting groove 18 provides the bend with stable auxiliary support and precise positioning function, which not only improves the installation accuracy and safety of the bend under complex working conditions, but also enhances its adaptability to different installation environments.
[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. An elbow with an impact-resistant structure, comprising a bend, characterized in that, It also includes a side frame fixedly connected to one side of the bend, and a buffer plate slidably connected to the inside of the side frame; Both sides of the buffer plate are fixedly connected to support rods, and one end of each support rod penetrates the side wall of the bend. An impact plate is fixedly connected to the inner end of each support rod. A water tank is fixedly connected to one side of the side frame, and a squeezing plate is provided inside the water tank. Several connecting rods are fixedly connected to the top of the squeezing plate, and one end of each connecting rod is fixedly connected to the top of the buffer plate. Slider blocks are fixedly connected to both sides of the squeezing plate, and both sliders are slidably connected to the side wall of the side frame through a sliding groove. One side of each slider is elastically connected to the inner wall of the two sliding grooves through an elastic plate.
2. The elbow with an impact-resistant structure as described in claim 1, characterized in that, A connecting pipe is connected to one side of the water tank, and one end of the connecting pipe is connected to one end of the bend pipe. A valve body is installed on one end of the connecting pipe.
3. The elbow with an impact-resistant structure as described in claim 1, characterized in that, One side of the buffer plate is elastically connected to the inner wall of the side frame through several compression springs, and the other side of the buffer plate is fixedly connected to the inner wall of the side frame through several dampers.
4. The elbow with an impact-resistant structure as described in claim 1, characterized in that, Several inclined blocks are fixedly connected to the inner wall of the bend near the inlet.
5. The elbow with an impact-resistant structure as described in claim 1, characterized in that, A fixing sleeve is fitted onto one end of the bent tube, and an arc-shaped plate is fixedly connected to one side of the fixing sleeve. A combing frame is provided on the inner side of the bent tube, and a support rod is fixedly connected to the top of the combing frame. The top of the support rod passes through one side of the bent tube and the arc-shaped plate in sequence.
6. The elbow with an impact-resistant structure as described in claim 5, characterized in that, A limiting plate is fixedly connected to one side of the top of the arc-shaped plate, and a limiting rod is provided on one side of the limiting plate. A limiting groove is provided on the limiting plate and the top of the support rod to cooperate with the limiting rod. Several limiting grooves are provided on the limiting plate.