Stress high-dispersion type pipe fitting
By setting curved sections and stress dispersing ribs in the inner cavity of the tee pipe fittings and setting up reinforcement mechanisms on the outside, the stress concentration problem is solved, the structural strength and pressure resistance of the pipe fittings are improved, the service life is extended and the operation cost is reduced.
Patent Information
- Application Number
- CN202421308117.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-06-07
AI Technical Summary
Existing three-way pipe fittings are prone to stress concentration at the fork, resulting in damage to the pipe fittings. Existing methods such as increasing the thickness of the pipe wall or choosing high-strength materials increase costs but have limited effects, making it difficult to fundamentally solve the problem of stress concentration.
A stress-high dispersed pipe fitting is designed. By setting a curved surface section and a plurality of stress dispersed ribs in the inner cavity of the tee pipe body, and a reinforcement mechanism is set on the outside, including a positioning frame, a threaded rod, a movable plate, a driving block, and a moving rod. , moving blocks, extrusion rings and limiting parts to disperse the stress generated by the impact of the water flow and enhance structural strength and pressure resistance.
It effectively reduces the stress generated by water flow impact, improves the structural strength and service life of pipe fittings, reduces the frequency of repair and replacement, reduces operating costs, and significantly improves the overall performance of pipe fittings.
Smart Images
Figure CN222334822U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipe fittings, in particular to a high-stress dispersion type pipe fitting. Background Art
[0002] As an important part of the pipeline system, the tee pipe is widely used in various liquid transportation systems. It is used at the confluence of three identical or different pipelines. Its main function is to change the direction of the fluid. Due to different conveying media, the materials of the tee pipe are divided into: cast iron, cast steel, cast copper, cast aluminum, plastic, glass, etc.
[0003] However, this type of pipe fittings often have stress concentration problems at the bifurcation, and water flow impact can easily cause damage to the pipe fittings, affecting the stable operation of the system. In order to alleviate the stress concentration problem of three-way pipe fittings in the prior art, methods such as increasing the pipe wall thickness or selecting high-strength materials are often used. However, these methods not only increase costs, but also have limited effects, and it is difficult to fundamentally solve the stress concentration problem. Therefore, a high-stress dispersion pipe fitting is proposed to solve the above problem. Utility Model Content
[0004] In view of the shortcomings of the prior art, the utility model provides a high stress dispersion pipe fitting, which has the advantages of high structural strength and long service life. It solves the problem of increasing the thickness of the pipe wall or selecting high-strength materials, which not only increases the cost but also has limited effect and is difficult to fundamentally solve the problem of stress concentration.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high stress dispersion type pipe fitting, comprising a tee pipe body, wherein the left and right ends of the inner bottom wall of the tee pipe body are provided with curved surface sections, the inner side wall of the tee pipe body is provided with a plurality of stress dispersion ribs, and the outer side of the tee pipe body is provided with a reinforcing mechanism for improving the structural strength of the tee pipe body;
[0006] The reinforcing mechanism includes a positioning frame, a threaded rod, a movable plate, two driving blocks, two moving rods, two moving blocks, two extrusion rings and a limit piece. The positioning frame is arranged on the outer side of the three-way pipe body, the threaded rod is threadedly connected to the upper surface of the positioning frame, the movable plate is arranged in the inner cavity of the positioning frame, the lower surface of the threaded rod passes through the inner top wall of the positioning frame and extends to the inner cavity of the positioning frame and is rotatably connected to the upper surface of the movable plate through a bearing, the two driving blocks are fixed at the left and right ends of the lower surface of the movable plate, the two moving rods respectively pass through the left and right sides of the positioning frame and extend to the inner cavity of the positioning frame, the moving block is fixed on the upper surface of the moving rod, the two extrusion rings are fixed on the opposite side of the two moving rods, and the limit piece is arranged at the bottom of the left and right side walls of the inner cavity of the positioning frame and is used to limit the movement of the moving rod.
[0007] By adopting this technical solution, additional support and protection are provided, further enhancing the structural strength and pressure resistance of the tee pipe body.
[0008] Furthermore, there is an angle between the stress dispersion rib and the inner wall of the tee pipe body, and the stress dispersion rib extends along the water flow direction.
[0009] By adopting this technical solution, the diversion port of the inner cavity of the tee body is provided with a curved surface section, so that the water flow can turn smoothly when passing through, reducing direct impact, and multiple stress dispersion ribs are arranged inside to effectively disperse the stress generated by the impact of the water flow.
[0010] Furthermore, the cross-sectional shape of the positioning frame is an inverted U-shape, and a hand wheel is fixed to the upper surface of the threaded rod.
[0011] By adopting this technical solution, the provided hand wheel can facilitate the staff to drive the threaded rod.
[0012] Furthermore, limiting grooves are provided on opposite sides of the left and right side walls of the inner cavity of the positioning frame, and limiting blocks are fixed on the left and right sides of the movable plate, and the limiting blocks are slidably connected to the limiting grooves.
[0013] By adopting this technical solution, the movement of the movable plate can be limited by the provided limiting blocks and limiting grooves, so that it can only perform linear motion.
[0014] Furthermore, the two driving blocks are symmetrically distributed on the left and right sides of the vertical center axis of the movable plate, the cross-sectional shape of the driving block is a trapezoid, and the cross-sectional shape of the moving block is a triangle.
[0015] Furthermore, a clamping block is fixed on one side of the two moving rods that are opposite to each other, and the outer diameter of the clamping block is larger than the outer diameter of the moving rod.
[0016] By adopting this technical solution, the moving rod is prevented from being separated from the positioning frame.
[0017] Furthermore, the limiting member includes two telescopic rods and two connecting plates, the two telescopic rods are fixed to the bottom of the opposite side of the left and right side walls of the inner cavity of the positioning frame, and the two connecting plates are fixed to the opposite side of the two telescopic rods.
[0018] By adopting this technical solution, the provided limiting member can be used to limit the movement of the moving rod.
[0019] Furthermore, the telescopic rod comprises a fixed sleeve and an inner rod which are nested with each other, and the upper surface of the connecting plate is fixed to the moving rod.
[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0021] 1. This high stress dispersion pipe fitting has a curved surface section at the diversion port of the inner cavity of the tee pipe body, so that the water flow can turn smoothly when passing through and reduce direct impact. Multiple stress dispersion ribs are arranged inside to effectively disperse the stress generated by the impact of water flow, which not only improves the structural strength and service life of the pipe fitting, but also reduces the frequency of maintenance and replacement, and reduces the overall operating cost.
[0022] 2. This high stress dispersion pipe fitting is provided with a reinforcement mechanism on the outer surface of the tee pipe, and provides additional support and protection through the cooperation between the positioning frame, threaded rod, movable plate, driving block, moving rod, moving block, extrusion ring and limiter, thereby further enhancing the structural strength and pressure resistance of the tee pipe body. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the structure of the utility model;
[0024] Figure 2 It is a side view schematic diagram of the strengthening mechanism structure of the utility model;
[0025] Figure 3 This is a schematic diagram of the positioning frame and movable plate structure of the utility model.
[0026] In the figure: 1. tee body; 2. curved surface section; 3. stress dispersion ribs; 4. reinforcing mechanism; 41. positioning frame; 42. threaded rod; 43. movable plate; 44. driving block; 45. moving rod; 46. moving block; 47. extrusion ring; 48. limiting member; 481. telescopic rod; 482. connecting plate. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] See also Figure 1 The high stress dispersion pipe fitting in this embodiment includes a tee pipe body 1, the left and right ends of the inner bottom wall of the tee pipe body 1 are provided with curved surface sections 2, the inner side wall of the tee pipe body 1 is provided with a plurality of stress dispersion ribs 3, and the outer side of the tee pipe body 1 is provided with a reinforcement mechanism 4 for improving the structural strength of the tee pipe body 1.
[0029] In this embodiment, there is an angle between the stress dispersion rib 3 and the inner wall of the tee pipe body 1, and the stress dispersion rib 3 extends along the water flow direction.
[0030] It should be noted that by adopting a curved transition structure at the diversion port in the inner cavity of the tee pipe body 1, the water flow can turn smoothly when passing through, reducing direct impact. At the same time, a plurality of stress dispersion ribs 3 are arranged inside, and the stress dispersion ribs 3 extend along the direction of the water flow and form a certain angle with the inner wall of the tee pipe body 1 to effectively disperse the stress generated by the water flow impact, thereby reducing local stress.
[0031] See also Figure 2-3 In order to improve the structural strength of the three-way pipe body 1, the reinforcing mechanism 4 in this embodiment includes a positioning frame 41, a threaded rod 42, a movable plate 43, two driving blocks 44, two moving rods 45, two moving blocks 46, two extrusion rings 47 and a stopper 48. The positioning frame 41 is arranged on the outside of the three-way pipe body 1, the threaded rod 42 is threadedly connected to the upper surface of the positioning frame 41, and the movable plate 43 is arranged in the inner cavity of the positioning frame 41. The lower surface of the threaded rod 42 passes through the inner top wall of the positioning frame 41 and extends to the inner cavity of the positioning frame 41 and is rotatably connected to the upper surface of the movable plate 43 through a bearing. The positioning frame 41 is placed on the outside of the three-way pipe body 1, and then the threaded rod 42 is rotated. The threaded rod 42 moves downward when rotating. The movable plate 43 moves downward, thereby driving the movable plate 43 to move downward. The two driving blocks 44 are fixed at the left and right ends of the lower surface of the movable plate 43. The two moving rods 45 respectively penetrate the left and right sides of the positioning frame 41 and extend to the inner cavity of the positioning frame 41. The moving block 46 is fixed on the upper surface of the moving rod 45. The movement of the movable plate 43 drives the two driving blocks 44 to move downward. The movement of the driving block 44 can make the two moving blocks 46 move relative to each other. The movement of the moving block 46 can drive the moving rod 45 to move, so that the two moving rods 45 move relative to each other. The two extrusion rings 47 are fixed on the opposite side of the two moving rods 45. The limiting member 48 is arranged at the bottom of the left and right side walls of the inner cavity of the positioning frame 41 and is used to limit the movement of the moving rod 45.
[0032] In this embodiment, the cross-sectional shape of the positioning frame 41 is an inverted U shape, a hand wheel is fixed to the upper surface of the threaded rod 42, limiting grooves are provided on opposite sides of the left and right side walls of the inner cavity of the positioning frame 41, limiting blocks are fixed on the left and right sides of the movable plate 43, and the limiting blocks are slidably connected to the limiting grooves.
[0033] Among them, the two driving blocks 44 are symmetrically distributed on the left and right sides of the vertical central axis of the movable plate 43, the cross-sectional shape of the driving block 44 is a trapezoid, the cross-sectional shape of the moving block 46 is a triangle, and the two moving rods 45 are fixed with a card block on the opposite side, and the outer diameter of the card block is larger than the outer diameter of the moving rod 45.
[0034] In this embodiment, the limiting member 48 includes two telescopic rods 481 and two connecting plates 482 . The two telescopic rods 481 are fixed to the bottom of the opposite side of the left and right side walls of the inner cavity of the positioning frame 41 , and the two connecting plates 482 are fixed to the opposite side of the two telescopic rods 481 .
[0035] The telescopic rod 481 includes a fixed sleeve and an inner rod which are nested with each other, and the upper surface of the connecting plate 482 is fixed to the moving rod 45 .
[0036] It can be understood that the movement of the moving rod 45 drives the connecting plate 482 to move, so that the telescopic rod 481 can be extended, and the movement of the moving rod 45 can be limited. The relative movement of the two moving rods 45 can drive the two extrusion rings 47 to move relative to each other, and the outer surface of the three-way pipe body 1 can be extruded, so that the structural strength of the three-way pipe body 1 is higher.
[0037] The working principle of the above embodiment is:
[0038] (1) By providing a curved surface section 2 at the diversion port in the inner cavity of the tee body 1, the water flow can turn smoothly when passing through, thereby reducing direct impact. At the same time, a plurality of stress dispersion ribs 3 are provided inside. The stress dispersion ribs 3 extend along the direction of the water flow and form a certain angle with the inner wall of the tee body 1 to effectively disperse the stress generated by the water flow impact, thereby reducing local stress.
[0039] (2) In order to improve the structural strength of the tee body 1, the positioning frame 41 can be placed on the outside of the tee body 1, and then the threaded rod 42 can be rotated. The threaded rod 42 moves downward while rotating, thereby driving the movable plate 43 to move downward, so that the limit blocks fixed on the left and right sides of the movable plate 43 move downward in the inner cavity of the limit groove. The movement of the movable plate 43 drives the two driving blocks 44 to move downward. The movement of the driving blocks 44 can make the two moving blocks 46 move relative to each other. The movement of the moving blocks 46 can drive the moving rod 45 to move, so that the two moving rods 45 move relative to each other. The movement of the moving rod 45 drives the connecting plate 482 to move, so that the telescopic rod 481 can be extended, and the movement of the moving rod 45 can be limited. The relative movement of the two moving rods 45 can drive the two extrusion rings 47 to move relative to each other, so that the outer surface of the tee body 1 can be extruded, so that the structural strength of the tee body 1 is relatively high.
Claims
1. A high stress dispersion pipe fitting, comprising a tee pipe body (1), characterized in that: The left and right ends of the inner bottom wall of the tee pipe body (1) are both provided with curved surface sections (2), the inner side wall of the tee pipe body (1) is provided with a plurality of stress dispersion ribs (3), and the outer side of the tee pipe body (1) is provided with a reinforcing mechanism (4) for improving the structural strength of the tee pipe body (1); The reinforcing mechanism (4) comprises a positioning frame (41), a threaded rod (42), a movable plate (43), two driving blocks (44), two moving rods (45), two moving blocks (46), two extrusion rings (47) and a stopper (48); the positioning frame (41) is arranged on the outside of the three-way pipe body (1); the threaded rod (42) is threadedly connected to the upper surface of the positioning frame (41); the movable plate (43) is arranged in the inner cavity of the positioning frame (41); the lower surface of the threaded rod (42) penetrates the inner top wall of the positioning frame (41) and extends to the inner wall of the positioning frame (41); The movable plate (43) is rotatably connected to the upper surface of the movable plate (43) through a bearing, the two driving blocks (44) are fixed to the left and right ends of the lower surface of the movable plate (43), the two moving rods (45) respectively penetrate the left and right sides of the positioning frame (41) and extend to the inner cavity of the positioning frame (41), the moving block (46) is fixed to the upper surface of the moving rod (45), the two extrusion rings (47) are fixed to the opposite sides of the two moving rods (45), and the limiting member (48) is arranged at the bottom of the left and right side walls of the inner cavity of the positioning frame (41) and is used to limit the movement of the moving rod (45).
2. The high stress dispersion pipe fitting according to claim 1, characterized in that: There is an included angle between the stress dispersion rib (3) and the inner wall of the tee pipe body (1), and the stress dispersion rib (3) extends along the direction of water flow.
3. The high stress dispersion pipe fitting according to claim 1, characterized in that: The cross-sectional shape of the positioning frame (41) is an inverted U-shape, and a hand wheel is fixed on the upper surface of the threaded rod (42).
4. The high stress dispersion pipe fitting according to claim 1, characterized in that: Limiting grooves are provided on opposite sides of the left and right side walls of the inner cavity of the positioning frame (41), and limiting blocks are fixed on the left and right sides of the movable plate (43), and the limiting blocks are slidably connected to the limiting grooves.
5. The high stress dispersion pipe fitting according to claim 1, characterized in that: The two driving blocks (44) are symmetrically distributed on the left and right sides of the vertical central axis of the movable plate (43); the cross-sectional shape of the driving block (44) is a trapezoid, and the cross-sectional shape of the moving block (46) is a triangle.
6. The high stress dispersion pipe fitting according to claim 1, characterized in that: A clamping block is fixed on the opposite sides of the two moving rods (45), and the outer diameter of the clamping block is larger than the outer diameter of the moving rod (45).
7. The high stress dispersion pipe fitting according to claim 1, characterized in that: The limiting member (48) comprises two telescopic rods (481) and two connecting plates (482), the two telescopic rods (481) being fixed to the bottom of opposite sides of the left and right side walls of the inner cavity of the positioning frame (41), and the two connecting plates (482) being fixed to opposite sides of the two telescopic rods (481).
8. The high stress dispersion pipe fitting according to claim 7, characterized in that: The telescopic rod (481) comprises a fixing sleeve and an inner rod which are nested with each other, and the upper surface of the connecting plate (482) is fixed to the moving rod (45).