Anti-bending connecting elbow

Abstract

The utility model relates to the technical field of elbows, in particular to an anti-bending connecting elbow which comprises a first half elbow, a second half elbow, a lining and a fixing structure, and the fixing structure comprises a plurality of positioning pins, four rotating handles, four transmission assemblies, four connecting parts, four rotating components, four moving arms and four threaded rods. The plurality of positioning pins, the four rotating handles, the four transmission assemblies, the four connecting parts and the four rotating components are respectively arranged on the half elbow I, the four threaded rods are respectively arranged on the half elbow II, each transmission assembly is fixedly connected with the corresponding rotating handle, each connecting part is fixedly connected with the corresponding transmission assembly, and the four rotating components are fixedly connected with the half elbow II. Each rotating component is rotationally connected with the corresponding connecting component, each moving arm is fixedly connected with the corresponding rotating component, each threaded rod is matched with the corresponding moving arm, and the problem that after the interior of the elbow is abraded due to medium scouring or corrosion, the whole elbow needs to be replaced, and the maintenance cost is high is solved.

Description

Technical Field

[0001] This utility model relates to the field of elbow technology, and in particular to an anti-bending connecting elbow. Background Technology

[0002] Currently, when connecting two flanges, bolts are usually used to fix them together, and the sealing between the two flanges is only achieved through a sealing ring. This sealing method is too simple and may lead to air leakage at the flange connection.

[0003] To address the aforementioned problems, prior art CN220082453U discloses a pipe connection elbow, comprising a connecting elbow with an arc-shaped structure; two second connecting pipes connected to both ends of the connecting elbow; two mating seats connected to the ends of the two second connecting pipes, with the mating seats and second connecting pipes internally connected; the inner wall of the mating seats has multiple stepped annular grooves coaxially formed, and a second annular sealing ring is stacked on the bottom side of each annular groove; the butt joint is a stepped structure matching the shape of the inner cavity of the mating seat, and the butt joint is placed in the inner cavity of the mating seat. In use, this invention causes multiple sealing rings to be compressed and deformed, forming a multi-layered sealing structure at the outer end connection, resulting in better end sealing performance of the elbow and ensuring long-term leak-proof operation.

[0004] However, in the aforementioned existing technologies, the entire elbow needs to be replaced after wear occurs inside due to media erosion or corrosion, resulting in high maintenance costs. Summary of the Invention

[0005] The purpose of this utility model is to provide a bending-resistant connecting elbow, which solves the technical problem in the prior art that the entire elbow needs to be replaced after wear due to media erosion or corrosion, resulting in high maintenance costs.

[0006] To achieve the above objectives, this utility model employs an anti-bending connecting elbow, comprising a first half-bend, a second half-bend, an inner liner, and a fixing structure. The fixing structure includes several positioning pins, four rotary handles, four transmission components, four connecting parts, four rotating components, four moving arms, and four threaded rods. The second half-bend and the first half-bend are respectively disposed on the inner liner. The several positioning pins, four rotary handles, four transmission components, four connecting parts, and four rotating components are respectively disposed on the first half-bend. The four threaded rods are respectively disposed on the second half-bend. Each transmission component is fixedly connected to the corresponding rotary handle and located at one end of the corresponding rotary handle. Each connecting part is fixedly connected to the corresponding transmission component and located at one end of the corresponding transmission component. Each rotating component is rotatably connected to the corresponding connecting part and located at one end of the corresponding connecting part. Each moving arm is fixedly connected to the corresponding rotating component and located at one end of the corresponding rotating component. Each threaded rod cooperates with the corresponding moving arm.

[0007] Each of the transmission components includes a support rod and a worm gear, wherein the worm gear is fixedly connected to the support rod and is located on the outer surface of the support rod.

[0008] Each of the connecting components includes a worm gear, a connecting rod, and a connecting gear. The connecting rod is fixedly connected to the worm gear and is located at one end of the worm gear. The connecting gear is fixedly connected to the connecting rod and is located at one end of the connecting rod. The worm gear cooperates with the worm.

[0009] The rotating component includes a rotating gear and several sliding rods. The sliding rods are connected to the rotating rod of the rotating gear and are evenly distributed at one end of the rotating gear. The rotating gear cooperates with the connecting gear.

[0010] Each of the movable arms includes a mounting ring and a movable seat. The mounting ring is fixedly connected to the rotating gear and is located at one end of the rotating gear. The movable seat is fixedly connected to the mounting ring and is located at one end of the mounting ring.

[0011] This utility model discloses an anti-bending connecting elbow. In practical use, half-bend one and half-bend two are respectively installed on the outer surface of the liner. At this time, half-bend one and half-bend two are initially connected by several positioning pins. Each threaded rod cooperates with the corresponding moving arm. Then, using a tool, four handles are rotated. Each handle drives the transmission component to rotate, and the transmission component drives the connecting component to rotate. The connecting component drives the moving arm to rotate through the rotating member, so that the moving arm rotates and moves on the threaded rod until half-bend one and half-bend two are in complete contact, wrapping the liner. When the liner needs to be replaced, the four handles are rotated in the opposite direction to separate half-bend one and half-bend two, allowing the liner to be replaced. This method can effectively solve the problem of high maintenance costs caused by the need to replace the entire elbow after wear due to media erosion or corrosion inside the elbow. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a structural schematic diagram of an anti-bending connecting elbow according to the present invention.

[0014] Figure 2 This is a side view of an anti-bending connecting elbow according to the present invention.

[0015] Figure 3 This is the utility model Figure 2 A cross-sectional view of the AA line structure.

[0016] Figure 4 This is the utility model Figure 3 Enlarged view of the structure at point C.

[0017] 101-Half-bend head one, 102-Half-bend head two, 103-Inner liner, 104-Positioning pin, 105-Turner, 106-Threaded rod, 107-Support rod, 108-Worm gear, 109-Worm wheel, 110-Connecting rod, 111-Connecting gear, 112-Rotating gear, 113-Slide rod, 114-Mounting ring, 115-Moving seat. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-4 ,in Figure 1 This is a structural schematic diagram of an anti-bending connecting elbow according to this utility model. Figure 2 This is a side view of a bending-resistant connecting elbow according to this utility model. Figure 3 This is the utility model Figure 2 AA-line structural cross-sectional view, Figure 4 This is the utility model Figure 3 Enlarged view of the structure at point C.

[0020] This utility model provides a bending-resistant connecting elbow, including a first half-bend 101, a second half-bend 102, an inner liner 103, a positioning pin 104, a throttle 105, a threaded rod 106, a support rod 107, a worm gear 108, a worm wheel 109, a connecting rod 110, a connecting gear 111, a rotating gear 112, a sliding rod 113, a mounting ring 114, and a moving seat 115. The aforementioned solution solves the problem of high maintenance costs caused by the need to replace the entire elbow after wear due to media erosion or corrosion inside the elbow.

[0021] In this specific embodiment, the second half-bend 102 and the first half-bend 101 are respectively disposed on the inner liner 103. A plurality of positioning pins 104, four throttles 105, four transmission assemblies, four connecting parts, and four rotating members are respectively disposed on the first half-bend 101. Four threaded rods 106 are respectively disposed on the second half-bend 102. Each transmission assembly is fixedly connected to the corresponding throttle 105 and located at one end of the corresponding throttle 105. Each connecting part is fixedly connected to the corresponding transmission assembly and located at one end of the corresponding transmission assembly. Each rotating member is rotatably connected to the corresponding connecting part and located at one end of the corresponding connecting part. Each moving arm is fixedly connected to the corresponding rotating member and located at one end of the corresponding rotating member. Each threaded rod 106 cooperates with the corresponding moving arm to install the first half-bend 101 and the second half-bend 102 respectively on the inner liner 103. The outer surface of the liner 103 is initially connected to the first half-bend 101 and the second half-bend 102 via several positioning pins 104. Each threaded rod 106 engages with the corresponding moving arm. Then, using a tool, four handles 105 are rotated. Each handle 105 drives the transmission assembly to rotate, which in turn drives the connecting component to rotate. The connecting component, through the rotating member, drives the moving arm to rotate, causing the moving arm to rotate and move on the threaded rod 106 until the first half-bend 101 and the second half-bend 102 are in complete contact, encasing the liner 103. When the liner 103 needs to be replaced, the four handles 105 are rotated in the opposite direction to separate the first half-bend 101 and the second half-bend 102, allowing the liner 103 to be replaced. This way, when the inside of the elbow is worn due to media erosion or corrosion, only the liner 103 layer needs to be replaced, instead of replacing the entire elbow, reducing maintenance costs and improving maintainability.

[0022] The worm gear 108 is fixedly connected to the support rod 107 and is located on the outer surface of the support rod 107. The support rod 107 drives the worm gear 108 to rotate.

[0023] Secondly, the connecting rod 110 is fixedly connected to the worm gear 109 and is located at one end of the worm gear 109. The connecting gear 111 is fixedly connected to the connecting rod 110 and is located at one end of the connecting rod 110. The worm gear 109 cooperates with the worm 108. The worm 108 drives the worm gear 109 to rotate. The worm gear 109 drives the connecting gear 111 to rotate through the connecting rod 110.

[0024] Meanwhile, several of the slide rods 113 are connected to the rotating rod of the rotating gear 112 and are evenly arranged at one end of the rotating gear 112. The rotating gear 112 cooperates with the connecting gear 111, and the connecting gear 111 drives the rotating gear 112 to rotate along the several slide rods 113.

[0025] In addition, the mounting ring 114 is fixedly connected to the rotating gear 112 and is located at one end of the rotating gear 112. The movable seat 115 is fixedly connected to the mounting ring 114 and is located at one end of the mounting ring 114. The rotating gear 112 drives the movable seat 115 to rotate through the mounting ring 114.

[0026] In the use of the anti-bending connecting elbow of this embodiment, the first half-bend 101 and the second half-bend 102 are respectively installed on the outer surface of the inner liner 103. At this time, the first half-bend 101 and the second half-bend 102 are initially connected by several positioning pins 104. Each threaded rod 106 cooperates with the corresponding moving seat 115. Then, the four handles 105 are rotated using a tool. Each handle 105 drives the worm gear 108 to rotate through the support rod 107. The worm gear 108 drives the worm wheel 109 to rotate. The worm wheel 109 drives the connecting gear 1 through the connecting rod 110. 11. When the connecting gear 111 rotates, the rotating gear 112 rotates along several sliding rods 113. The rotating gear 112 drives the moving seat 115 to rotate through the mounting ring 114. The moving seat 115 rotates and moves along the threaded rod 106. When the inner liner 103 needs to be replaced, the four handles 105 are rotated in the opposite direction using a tool to separate the first half-bend 101 and the second half-bend 102, allowing the inner liner 103 to be replaced. In this way, when the inside of the elbow is worn due to media erosion or corrosion, only the inner liner 103 layer needs to be replaced, without replacing the entire elbow, reducing maintenance costs and improving maintainability.

[0027] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A bending-resistant connecting elbow, comprising a first half-bend, a second half-bend, and an inner liner, wherein the second half-bend and the first half-bend are respectively disposed on the inner liner, characterized in that, It also includes fixed structures, The fixed structure includes several positioning pins, four throttles, four transmission assemblies, four connecting parts, four rotating components, four moving arms, and four threaded rods. The positioning pins, throttles, transmission assemblies, connecting parts, and rotating components are respectively disposed on the first half-bend. The threaded rods are respectively disposed on the second half-bend. Each transmission assembly is fixedly connected to a corresponding throttle and located at one end of the corresponding throttle. Each connecting part is fixedly connected to a corresponding transmission assembly and located at one end of the corresponding transmission assembly. Each rotating component is rotatably connected to a corresponding connecting part and located at one end of the corresponding connecting part. Each moving arm is fixedly connected to a corresponding rotating component and located at one end of the corresponding rotating component. Each threaded rod engages with a corresponding moving arm.

2. The anti-bending connection elbow as described in claim 1, characterized in that, Each of the transmission components includes a support rod and a worm gear, the worm gear being fixedly connected to the support rod and located on the outer surface of the support rod.

3. The anti-bending connection elbow as described in claim 2, characterized in that, Each of the connecting components includes a worm gear, a connecting rod, and a connecting gear. The connecting rod is fixedly connected to the worm gear and located at one end of the worm gear. The connecting gear is fixedly connected to the connecting rod and located at one end of the connecting rod. The worm gear engages with the worm.

4. The anti-bending connection elbow as described in claim 3, characterized in that, The rotating component includes a rotating gear and several sliding rods. The sliding rods are connected to the rotating rod of the rotating gear and are evenly distributed at one end of the rotating gear. The rotating gear cooperates with the connecting gear.

5. The anti-bending connection elbow as described in claim 4, characterized in that, Each of the movable arms includes a mounting ring and a movable seat. The mounting ring is fixedly connected to the rotating gear and located at one end of the rotating gear. The movable seat is fixedly connected to the mounting ring and located at one end of the mounting ring.

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