An improved stainless steel seamless elbow

Abstract

This invention relates to the field of pipeline technology, and more particularly to an improved stainless steel seamless elbow. The invention provides an improved stainless steel seamless elbow comprising a bend, guide fins, mounting rings, a top block, first mounting rods, first threaded rods, and a knob. Guide fins are evenly spaced along the inner circumference of the bend. Mounting rings are mounted at both ends of the bend. Several first mounting rods are symmetrically mounted on the mounting rings. A top block is mounted on each first mounting rod. A first threaded rod is rotatably mounted on each mounting ring, and a knob is located at one end of each first threaded rod. This invention uses the rotation of the knob to drive the threaded transmission, which moves the connecting ring. The inclined surfaces of the top block and the wedge block engage to push the arc-shaped clamping block radially, achieving rapid clamping of the pipe and a metal seal between the mounting ring and the connecting ring, resulting in a rapid and stable connection and a leak-proof seal.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipelines, in particular to an improved stainless steel seamless elbow. BACKGROUND

[0002] Stainless steel elbow is a key pipe fitting for changing the direction of fluid flow in pipeline system, widely used in petroleum and chemical industry, power, shipbuilding, pharmaceutical and food processing industries. It is mainly made of 304, 304L, 316, 316L and other corrosion-resistant stainless steel materials, with excellent oxidation resistance, acid and alkali resistance and mechanical strength, suitable for high temperature, high pressure and corrosive medium environment. With the increasing demand for energy efficiency and reliability of industrial systems, the shortcomings of traditional elbow in fluid dynamic performance, connection sealing and intelligent function gradually appear, and structural optimization and technological upgrading are urgently needed.

[0003] At present, the stainless steel elbow on the market generally has the phenomenon of vortex and turbulent flow caused by the impact of centrifugal force on the outer pipe wall when the fluid passes through, which causes serious local erosion and wear, large vibration and noise, and increased fluid resistance. In addition, the traditional welding connection method is easy to produce stress concentration and corrosion risk at the weld, affecting the service life; the flange connection has the defects of complicated installation, sealing relying on gasket and easy loosening and leakage. Although some improved schemes introduce flow guide fins or sliding compensation structures to optimize the flow field or adapt to thermal expansion and cold contraction, they still have shortcomings in quick assembly and disassembly, sealing reliability and real-time state monitoring. Especially under high pressure or vibration working conditions, there is a lack of effective self-tightening sealing mechanism, and it is difficult to balance installation efficiency and long-term sealing stability.

[0004] Therefore, an improved stainless steel seamless elbow with quick and stable connection and high-efficiency sealing and leakage prevention is needed. SUMMARY

[0005] In order to overcome the shortcomings of poor connection sealing and complicated installation of the existing device, the present application provides an improved stainless steel seamless elbow.

[0006] The technical scheme of the present application: the present application provides an improved stainless steel seamless elbow, which comprises an elbow pipe, a flow guide fin, a mounting ring, a connecting ring, a top block, a first mounting rod, a second mounting rod, a first elastic member, a wedge block, an arc clamping block, a first threaded rod, a threaded sleeve, a knob and a rubber pad, the flow guide fins are uniformly and spacedly arranged on the inner periphery of the elbow pipe, the mounting ring is mounted on both ends of the elbow pipe, a plurality of first mounting rods are symmetrically mounted on the mounting ring, the top block is mounted on the first mounting rod, the first threaded rod is rotatably mounted on the mounting ring, one end of the first threaded rod is provided with the knob, the threaded sleeve is threadedly connected to the first threaded rod, the connecting ring is connected to the threaded sleeve, a plurality of second mounting rods are slidably arranged on the connecting ring, the wedge block is mounted on the second mounting rod, the wedge block is movably contacted with the top block, the first elastic member is sleeved on the second mounting rod, one end of the first elastic member is connected with the second mounting rod, and the other end of the first elastic member is connected with the connecting ring, the arc clamping block is connected to the second mounting rod, and the rubber pad is arranged on one side of the arc clamping block.

[0007] Preferably, the mounting sleeve, the sliding rod, the second elastic member, the floating block and the pressure gauge are further included, the mounting sleeve is mounted on the elbow pipe, the sliding rod is slidably mounted on the mounting sleeve, the floating block is arranged at one end of the sliding rod, the pressure gauge is mounted at the other end of the sliding rod, the second elastic member is sleeved on the sliding rod, one end of the second elastic member is connected with the mounting sleeve, and the other end of the second elastic member is connected with the floating block.

[0008] Preferably, the connecting rod, the second threaded rod and the baffle are further included, the connecting rod is connected to the sliding rod, the second threaded rod is threadedly connected to both ends of the connecting rod, the baffle is connected to the second threaded rod, the second threaded rod is rotatably connected to the mounting ring, and the arc-shaped grooves are symmetrically formed in the baffle.

[0009] Preferably, the mounting sliding cylinder, the temperature gauge and the temperature probe are further included, the mounting sliding cylinder is mounted on the connecting ring, the temperature probe is slidably mounted in the mounting sliding cylinder, and the temperature gauge is arranged at one end of the temperature probe.

[0010] Preferably, the rubber ring and the net bag are further included, the rubber ring is arranged in the mounting ring, and the net bag is inlaid in the rubber ring.

[0011] Preferably, the rotating rod and the handle are further included, the rotating rod is symmetrically and rotatably mounted on the elbow pipe, and the handle is connected to the rotating rod.

[0012] Preferably, the flow guide fin is designed in a wedge shape and gradually thins from outside to inside.

[0013] Preferably, the mounting ring and the connecting ring are provided with matching inclined angle structures, the outer edge of the mounting ring is inwardly inclined, the outer edge of the connecting ring is outwardly convex, and the mounting ring and the connecting ring are precisely embedded.

[0014] The present application has the following beneficial effects:

[0015] 1. The application drives the connecting ring to move by rotating the knob to drive the threaded transmission, uses the slope of the wedge block to push the arc-shaped clamp block to shrink radially, realizes the quick clamping of the pipeline and the metal sealing between the mounting ring and the connecting ring, and achieves the effects of quick and stable connection and sealing and leakage prevention.

[0016] 2. The application drives the slide rod and the connecting rod to rise by the floating block sensing the fluid pressure change, uses the threaded transmission to convert the linear motion into the rotary motion of the second threaded rod, drives the baffle to rotate to open the flow channel, realizes the automatic adjustment of the fluid flux and the pressure response linkage control, and achieves the intelligent circulation regulation and control effects of automatic drainage when the pressure rises and elastic reset after the pressure reduces.

[0017] 3. The application adapts to different pipe diameters by the temperature probe sliding radially along the mounting slide cylinder, rotates the handle along the rotating rod to assist in carrying and the elastic sealing structure of the embedded mesh bag in the rubber ring, and achieves the effects of accurate temperature monitoring, convenient transportation and sealed filtration. DETAILED DESCRIPTION

[0018] Figure 1 It is a perspective structural schematic view of the application.

[0019] Figure 2 It is a perspective structural schematic view of the elbow pipe and the flow guide fin of the application.

[0020] Figure 3 It is a perspective structural schematic view of the elbow pipe, the mounting ring and the baffle of the application.

[0021] Figure 4 It is a perspective structural schematic view of the mounting ring, the connecting ring and the top block of the application.

[0022] Figure 5 It is a perspective structural schematic view of the first elastic member, the wedge block and the arc-shaped clamp block of the application.

[0023] Figure 6 It is a perspective structural schematic view of the pressure gauge, the connecting rod and the second threaded rod of the application.

[0024] Figure 7 It is a perspective structural schematic view of the slide rod, the second elastic member and the floating block of the application.

[0025] Figure 8 It is a perspective structural schematic view of the mounting slide cylinder, the temperature gauge and the temperature probe of the application.

[0026] Figure 9 It is a perspective structural schematic view of the rubber ring and the mesh bag of the application.

[0027] Figure 10 It is a perspective structural schematic view of the rotating rod and the handle of the application.

[0028] The labels in the attached diagram are as follows: 1-bend, 2-guide fin, 3-mounting ring, 4-connecting ring, 5-top block, 51-first mounting rod, 6-second mounting rod, 7-first elastic element, 8-wedge block, 9-arc clamping block, 10-first threaded rod, 11-threaded sleeve, 12-knob, 13-rubber pad, 14-mounting sleeve, 15-slide rod, 16-second elastic element, 17-floating block, 18-pressure gauge, 19-connecting rod, 20-second threaded rod, 21-baffle, 2101-arc groove, 22-mounting slide, 23-thermometer, 2301-temperature probe, 24-rubber ring, 25-net, 26-rotating rod, 27-handle. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Example 1: An improved stainless steel seamless elbow, such as Figures 1-5 As shown, the assembly includes a bend 1, guide fins 2, mounting rings 3, connecting rings 4, top blocks 5, first mounting rods 51, second mounting rods 6, first elastic elements 7, wedge blocks 8, arc-shaped clamps 9, first threaded rods 10, threaded sleeves 11, knobs 12, and rubber pads 13. Multiple guide fins 2 are evenly installed inside the bend 1. The guide fins 2 are designed in a wedge shape, gradually thinning from the outside to the inside to optimize fluid flow and reduce resistance. Mounting rings 3 are symmetrically arranged on the bend 1. Four first mounting rods 51 are mounted on the mounting rings 3, each connected to a top block 5. First threaded rods 10 are rotatably mounted on the mounting rings 3. A knob 12 for easy operation is mounted at the front end of the first threaded rod 10. Threaded sleeves 11 are threadedly connected to the first threaded rod 10. A connecting ring 4 is installed on the 11, allowing the rotating knob 12 to drive the connecting ring 4 to move back and forth. The outer edges of the mounting ring 3 and the connecting ring 4 are provided with matching bevel structures. The edges of the mounting ring 3 and the connecting ring 4 adopt mutually matching bevel structures. The edge of the mounting ring 3 is inclined inward, while the edge of the connecting ring 4 protrudes outward to form a bevel, ensuring that the two fit tightly together. Four second mounting rods 6 are slidably installed on the connecting ring 4. Each of the four second mounting rods 6 is connected to a wedge block 8. The four wedge blocks 8 are in movable contact with the top block 5 at the corresponding position. A first elastic element 7 is sleeved on the second mounting rod 6. The two ends of the first elastic element 7 are connected to the second mounting rod 6 and the connecting ring 4 respectively. An arc-shaped clamping block 9 is installed on the second mounting rod 6. A rubber pad 13 is pasted on the arc-shaped clamping block 9 to enhance the anti-slip performance.

[0031] The operator can apply the corresponding technical solutions in the device to the high-pressure fluid pipeline quick connection and sealing technology according to the specific situation. When it is necessary to use the device to assist in seamless butt joint operation of the pipeline, first, the pipeline to be connected is inserted into the mounting ring 3 at both ends of the elbow pipe 1, then the knob 12 is rotated to rotate the first threaded rod 10, the threaded sleeve 11 and the connecting ring 4 fixedly connected therewith are moved in the threaded axial direction, and the connecting ring 4 gradually approaches the mounting ring 3. In this process, the matching inclined angle structures on the mounting ring 3 and the connecting ring 4 are closely fitted to form a reliable metal sealing surface. At the same time, the advancement of the connecting ring 4 forces the top block 5 to slide along the inclined surface of the wedge block 8, drives the wedge block 8 to move inward under the action of the inclined surface, and then drives the synchronous contraction of the arc-shaped clamping blocks 9 thereon, so that the multiple arc-shaped clamping blocks 9 together with the rubber pads 13 on the inside are uniformly pressed against the outer wall of the pipeline, achieving firm clamping and secondary sealing, and ensuring stable connection, anti-vibration and anti-leakage.

[0032] Example 2: Based on example 1, as shown in Figures 6-7 The mounting sleeve 14, the sliding rod 15, the second elastic member 16, the floating block 17, the pressure gauge 18, the connecting rod 19, the second threaded rod 20 and the baffle 21 are further included. The mounting sleeve 14 is vertically upwardly arranged at the top central position of the elbow pipe 1. The sliding rod 15 is slidably connected in the mounting sleeve 14. The floating block 17 is connected to the lower end of the sliding rod 15. The overall average density of the floating block 17 is less than the density of water, and the floating block 17 can float up and down with the change of the fluid pressure in the pipeline. The pressure gauge 18 is arranged at the upper end of the sliding rod 15, and is used to display the pressure value in the pipeline in real time, so as to help the operator to master the system operation state and prevent the risk of overpressure or leakage. The second elastic member 16 is sleeved on the sliding rod 15, and the two ends of the second elastic member 16 are connected with the mounting sleeve 14 and the floating block 17 respectively. The second elastic member 16 provides a pre-tightening force to ensure that the floating block 17 remains in a stable position under no pressure or low pressure, and at the same time, plays a buffering and resetting role when the pressure fluctuates, avoids the pressure gauge from being subjected to a severe impact, and prolongs the service life of the detection element. The connecting rod 19 is installed on the sliding rod 15. The connecting rod 19 is a V-shaped connecting rod. The second threaded rod 20 is threadedly installed at the two ends of the connecting rod 19. The second threaded rod 20 is connected with the circular baffle 21 at the lower part. The size of the baffle 21 matches the end face of the mounting ring 3, and the baffle 21 can completely cover the butt joint of the mounting ring 3 in the closed state. The second threaded rod 20 is rotatably connected with the mounting ring 3, and the baffle 21 can completely cover and seal the mounting ring 3. The baffle 21 is not completely sealed, and two symmetrical arc-shaped grooves 2101 are formed on the surface of the baffle 21. When the baffle 21 is in a fixed position and does not rotate, the fluid can only pass through the two arc-shaped grooves 2101 to form a throttling effect, which can be used to adjust the flow.

[0033] The operator can apply the corresponding technical solutions in the device to the intelligent fluid pressure response and adaptive flow control technology according to the specific situation. When the device is needed to assist in the dynamic regulation and control operation of the fluid in the pipeline, first, ensure that the device is in a normal working state. When the water flow pressure in the pipe rises, the floating block 17 is pushed upward in the installation sleeve 14 by the water pressure, driving the sliding rod 15 and the connecting rod 19 to rise synchronously. Since the connecting rod 19 is screwed with the second threaded rod 20, its vertical movement is converted into the rotational movement of the second threaded rod 20, which in turn drives the baffle 21 connected thereto to rotate, opening the originally closed port, and the state of guiding the flow through the arc-shaped groove 2101 changes to directly opening the channel, greatly improving the fluid passing capacity, realizing automatic drainage and flux regulation when the pressure rises, realizing the linkage control of pressure sensing and flow passage opening and closing. When the pressure decreases, the second elastic member 16 releases the elastic force and pushes the floating block 17 to reset, completing an intelligent response cycle.

[0034] Example 3: Based on example 2, as shown in Figures 8-10 The installation sliding cylinder 22, the temperature meter 23, the temperature probe 2301, the rubber ring 24, the net bag 25, the rotating rod 26 and the handle 27 are further included. The installation sliding cylinder 22 is arranged on the connecting ring 4, and the temperature probe 2301 is slidably arranged in the installation sliding cylinder 22. The installation sliding cylinder 22 is used to guide the temperature probe 2301 to stably and lowly resistantly slide in a straight line. The temperature meter 23 is arranged at the top end of the temperature probe 2301. The rubber ring 24 is inlaid in the installation ring 3, which effectively prevents high-pressure fluid leakage. The net bag 25 is arranged in the rubber ring 24 and is woven by corrosion-resistant nylon or stainless steel wire, which is used to intercept particulate impurities, welding slag or deposits flowing with the fluid, prevent them from scratching or blocking the sealing surface, thereby prolonging the service life of the sealing structure, and is especially suitable for new pipeline flushing or industrial circulating water systems that are prone to contain impurities. The two rotating rods 26 are rotatably arranged in the middle of the elbow pipe 1, and the arc-shaped handles 27 are arranged on the two rotating rods 26. When the handles 27 are not used, they keep the overall structure neat and beautiful under the magnetic action, and can effectively avoid the space occupation or personnel bumping risk caused by the suspended protrusion, and are especially suitable for narrow installation space and dense pipeline layout in industrial environment.

[0035] The operator can apply the corresponding technical solutions in the device to the pipeline temperature monitoring and sealing enhancement technology according to the specific situation. When the device needs to be used to assist in equipment operation state detection and installation and maintenance operation, first, confirm that each functional component is in normal working condition, the temperature probe 2301 on the installation sliding cylinder 22 can detect the temperature of the outer wall of the pipeline in real time, the temperature probe 2301 can slide along the radial direction of the installation sliding cylinder 22 to adapt to different pipe diameters, and the temperature probe 2301 can ensure accurate temperature measurement, the reading is directly displayed on the temperature table 23, which is convenient for on-site monitoring, at the same time, rotating the handle 27 along the rotating rod 26 can easily lift or move the whole device, which significantly improves the carrying and installation efficiency, during the connection process, the rubber ring 24 arranged in the installation ring 3 can effectively fill the small gap between the pipeline and the interface, enhance the sealing performance, and prevent medium leakage, the embedded net bag 25 has an elastic structure, which can filter the particle impurities in the fluid, protect the sealing surface, and prolong the service life.

[0036] The above-described embodiments only express the preferred embodiments of the present application, which are described in detail, but should not be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications, improvements and substitutions can be made, which are all within the protection scope of the present application.

Claims

1. An improved stainless steel seamless bend comprising of a bend pipe (1) characterised in that, The utility model also includes guide fin (2), mounting ring (3), connecting ring (4), top block (5), first mounting rod (51), second mounting rod (6), first elastic element (7), wedge block (8), arc clamping block (9), first threaded rod (10), threaded sleeve (11), knob (12) and rubber pad (13), the inner circumferential uniform interval of elbow pipe (1) is provided with guide fin (2), and the both ends of elbow pipe (1) are provided with mounting ring (3), and the symmetry of mounting ring (3) is provided with a plurality of first mounting rod (51), and first mounting rod (51) is provided with top block (5), and mounting ring (3) is rotatably provided with first threaded rod (10), and one end of first threaded rod (10) is provided with knob (12), and first threaded rod (10) is threadedly connected with threaded sleeve (11), and threaded sleeve (11) is connected with connecting ring (4), and connecting ring (4) is slidably provided with a plurality of second mounting rod (6), and second mounting rod (6) is provided with wedge block (8), and wedge block (8) and top block (5) are movably contacted, and first elastic element (7) is sleeved on second mounting rod (6), and one end of first elastic element (7) is connected with second mounting rod (6), and the other end of first elastic element (7) is connected with connecting ring (4), and second mounting rod (6) is connected with arc clamping block (9), and one side of arc clamping block (9) is provided with rubber pad (13); The utility model also includes mounting sleeve (14), sliding rod (15), second elastic element (16), floating block (17) and pressure gauge (18), and the mounting sleeve (14) of elbow pipe (1) is slidably installed with sliding rod (15), and one end of sliding rod (15) is provided with floating block (17), and the other end of sliding rod (15) is provided with pressure gauge (18), and second elastic element (16) is sleeved on sliding rod (15), and one end of second elastic element (16) is connected with mounting sleeve (14), and the other end of second elastic element (16) is connected with floating block (17); The utility model also includes connecting rod (19), second threaded rod (20) and baffle (21), and the connecting rod (19) of sliding rod (15) is threadedly connected with second threaded rod (20) on both ends, and the second threaded rod (20) is connected with baffle (21), and the second threaded rod (20) is rotatably connected with mounting ring (3), and the symmetry of baffle (21) is provided with arc slot (2101);When floating block (17) is pushed in mounting sleeve (14) and moves up under water pressure, sliding rod (15) and connecting rod (19) are driven and simultaneously rise, because connecting rod (19) is threadedly connected with second threaded rod (20), and the vertical motion is converted into the rotary motion of second threaded rod (20), and then drives the rotation of baffle (21) connected with it; The utility model also includes mounting sliding cylinder (22), temperature gauge (23) and temperature probe (2301), and the mounting sliding cylinder (22) of connecting ring (4) is slidably installed with temperature probe (2301), and one end of temperature probe (2301) is provided with temperature gauge (23); It also comprises a rubber ring (24) and a mesh bag (25), the rubber ring (24) is arranged in the mounting ring (3), and the mesh bag (25) is inlaid in the rubber ring (24); It also comprises a rotating rod (26) and a handle (27), the rotating rod (26) is symmetrically and rotatably arranged on the elbow pipe (1), and the handle (27) is connected to the rotating rod (26); The flow guide fin (2) is designed in a wedge shape and gradually thins from outside to inside; The outer edges of the mounting ring (3) and the connecting ring (4) are provided with matching inclined angle structures, the outer edge of the mounting ring (3) is inwardly inclined, the outer edge of the connecting ring (4) is outwardly convex, and the mounting ring (3) and the connecting ring (4) are precisely embedded.

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