Flange to prevent rotation and detachment
By designing a flange to prevent rotational detachment and utilizing sealing and connecting components, the problem of traditional flanges being unable to rotate freely in rotating parts connections has been solved. This enables the flange pipe to rotate freely and be quickly installed and disassembled, improving performance and operational efficiency.
Patent Information
- Application Number
- CN202521703572.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-12
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-08-12
AI Technical Summary
Traditional flanges cannot rotate freely in rotating parts connections, resulting in obstructed rotation, accelerated wear of components, and even safety hazards such as loose connections and seal failure.
A flange designed to prevent rotational detachment is achieved by incorporating sealing and connecting components, including a flange seat, connecting ring, slip ring, ball bearings, connecting rod, and knob, enabling free rotation and rapid installation and disassembly of the flange pipe.
This design allows flanged pipes to rotate freely after connection without falling off, reducing friction, improving performance and operational efficiency, and avoiding the rotational obstruction and wear problems of traditional flanges.
Smart Images

Figure CN224283848U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of flanges, and in particular to a flange that prevents rotation and detachment. Background Technology
[0002] In the fields of mechanical engineering and piping connections, flanges, as key connecting components between shafts and shafts, and between pipe ends, are widely used in various fluid transportation and power transmission scenarios due to their reliable connection performance. Traditional flanges typically use fasteners such as bolts and nuts to rigidly connect a pair of mating flange plates, thereby achieving the fixed connection of pipes or shaft components.
[0003] However, traditional flange structures have significant limitations in applications involving rotating parts. When two components that need to rotate relative to each other are connected by a traditional flange, the rotating parts cannot rotate freely relative to each other due to the rigid fixation between the flanges. This greatly limits the application of flanges in rotating equipment, dynamic transmission systems, and other similar scenarios.
[0004] For example, in the shaft connection of rotating machinery, the piping system that requires multi-angle adjustment, or the dynamic sealing device, the rigid connection of traditional flanges can lead to obstructed rotation, accelerated wear of components, and even safety hazards such as loose connection and seal failure. Utility Model Content
[0005] This utility model aims to at least partially solve one of the technical problems in the related art.
[0006] Therefore, one objective of this utility model is to provide a flange that prevents rotation and detachment, enabling the flange pipe to rotate freely without falling off after connection, while ensuring quick installation and disassembly, effectively improving the performance and operational efficiency.
[0007] To achieve the above objectives, a first aspect of this utility model provides a flange for preventing rotational detachment, comprising two flange pipes and a connecting mechanism, wherein,
[0008] The opposite ends of the two flanges are in contact with each other, and the connecting mechanism is disposed at the surface connection of the two flanges;
[0009] The connection mechanism includes a sealing component and a connecting component, wherein the sealing component is disposed on the surface of the two flange pipes and the connecting component is disposed on the surface of the sealing component.
[0010] The flange for preventing rotation and detachment in this embodiment of the utility model, by setting a connecting mechanism, allows the flange pipes to rotate freely after they are connected by the connecting mechanism. This prevents the two flange pipes from being unable to rotate due to the connection of the flange seat, thus improving the performance of the flange. At the same time, the connecting component and the sealing component can ensure that the two flange pipes can rotate freely without falling off. Furthermore, the setting of the connecting component can ensure that the two flange pipes can be quickly installed and disassembled, improving operational efficiency.
[0011] In addition, the flange for preventing rotational detachment proposed above according to this utility model may also have the following additional technical features:
[0012] In one embodiment of this utility model, the sealing assembly includes two flange seats, two connecting rings, and two slip rings, wherein,
[0013] Two flange seats are respectively disposed on the surfaces of two flange tubes, two connecting rings are embedded and installed on opposite sides of the two flange seats, two slip rings are respectively fixedly connected to the inner side of the connecting rings, a groove is formed on the surface of the flange tube, the slip ring is slidably connected to the inner wall of the groove, and evenly distributed balls are rotatably connected to the inner wall of the slip ring, the surface of the balls penetrates the slip ring and contacts the inner wall of the groove.
[0014] In one embodiment of this utility model, a limiting block that engages with a connecting ring is fixedly connected to the inner wall of the flange seat.
[0015] In one embodiment of the present invention, a sealing ring is fixedly connected to the surface of one of the connecting rings, and a connecting groove corresponding to the sealing ring is formed on the surface of the other connecting ring.
[0016] In one embodiment of this utility model, the connecting assembly includes a connecting block and a connecting rod, wherein,
[0017] The connecting block is fixedly connected to the outside of the flange seat in a ring shape. The surface of the connecting block on one side of the flange seat has evenly distributed through holes, and the connecting rod is fixedly connected to the surface of the connecting block on the other side of the flange seat.
[0018] In one embodiment of this utility model, the surface of the connecting rod is provided with two symmetrically distributed mounting grooves, and a locking block is slidably connected to the inner wall of the mounting groove. One end of the locking block extends through the mounting groove and has an inclined surface, and the other end of the locking block is fixedly connected to the inner wall of the mounting groove with a spring.
[0019] In one embodiment of this utility model, a knob is provided at one end of the connecting rod away from the adjacent connecting block. A rotating shaft is fixedly connected to the surface of the knob. The other end of the rotating shaft passes through the adjacent connecting rod and is rotatably connected to the inner wall of the connecting rod. Two connecting ropes are fixedly connected to the surface of the connecting rod and are symmetrically distributed. The other end of the connecting ropes is fixedly connected to the surface of the adjacent locking block.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] 1. By setting a connecting mechanism, the flange pipes can rotate freely after they are connected by the connecting mechanism. By setting a slip ring and a groove, the flange pipes can slide freely on the inner wall of the flange seat, while ensuring that the flange seat will not fall off the flange pipes. The ball bearings can reduce friction and prevent the rotation from being obstructed.
[0022] 2. By setting up sealing and connecting components, quick installation and disassembly between two flange pipes can be achieved. During installation, simply align the connecting rod with the through hole and insert it. After installation, the connecting rod is positioned to prevent separation by the cooperation of the spring and the locking blocks. During disassembly, rotating the knob will rotate the shaft to tighten the connecting rope. The connecting rope will then pull the two locking blocks to retract into the mounting groove, releasing the restriction on the connecting rod and separating the two flange seats, effectively improving the efficiency of installation and disassembly.
[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0025] Figure 1 This is a schematic diagram of the structure of a flange for preventing rotation and detachment according to an embodiment of the present invention;
[0026] Figure 2 This is a schematic diagram of the separation of a flange for preventing rotation and detachment according to an embodiment of the present invention;
[0027] Figure 3 This is a cross-sectional schematic diagram of a flange for preventing rotational detachment according to an embodiment of the present invention;
[0028] Figure 4 for Figure 3 Enlarged view of A in the middle;
[0029] Figure 5This is a cross-sectional schematic diagram of the connecting rod of a flange for preventing rotational detachment according to an embodiment of the present invention.
[0030] As shown in the figure: 1. Flange pipe; 2. Connecting mechanism; 201. Flange seat; 202. Connecting ring; 203. Limiting block; 204. Sealing ring; 205. Connecting block; 206. Connecting rod; 207. Slip ring; 208. Ball bearing; 209. Knob; 210. Rotating shaft; 211. Locking block; 212. Mounting groove; 213. Connecting rope; 214. Spring. Detailed Implementation
[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0032] The flange for preventing rotational detachment according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
[0033] like Figures 1-5 As shown, the flange for preventing rotation and detachment according to an embodiment of the present invention may include two flange tubes 1 and a connecting mechanism 2, wherein,
[0034] The opposite ends of the two flange pipes 1 are in contact with each other, and the connecting mechanism 2 is set at the surface connection of the two flange pipes 1;
[0035] The connecting mechanism 2 includes a sealing component and a connecting component. The sealing component is disposed on the surface of the two flange pipes 1, and the connecting component is disposed on the surface of the sealing component.
[0036] Specifically, the two flange pipes 1 are connected by the connecting mechanism 2. The sealing component can seal them to prevent leakage, and the connecting component, together with the sealing component, can ensure that the two flange pipes 1 can rotate freely without falling off.
[0037] In one embodiment of this utility model, such as Figure 2-4 As shown, the sealing assembly includes two flange seats 201, two connecting rings 202, and two slip rings 207, wherein,
[0038] Two flange seats 201 are respectively disposed on the surfaces of two flange pipes 1. Two connecting rings 202 are embedded and installed on opposite sides of the two flange seats 201. Two slip rings 207 are respectively fixedly connected to the inner side of the connecting rings 202. A groove is provided on the surface of the flange pipe 1. The slip rings 207 are slidably connected to the inner wall of the groove. The inner wall of the slip rings 207 is rotatably connected with evenly distributed balls 208. The surface of the balls 208 passes through the slip rings 207 and contacts the inner wall of the groove.
[0039] Specifically, by setting the slip ring 207 and the groove, it is possible to ensure that the flange pipe 1 can slide freely on the inner wall of the flange seat 201, while ensuring that the flange seat 201 will not fall off the flange pipe 1. The setting of the ball 208 can reduce friction and ensure that its rotation is not obstructed.
[0040] In one embodiment of this utility model, such as Figure 2-4 As shown, a limiting block 203 that engages with the connecting ring 202 is fixedly connected to the inner wall of the flange seat 201.
[0041] Specifically, by setting the limit block 203, the connection strength between the flange seat 201 and the connecting ring 202 can be strengthened, preventing the connecting ring 202 from rotating during the rotation of the flange pipe 1.
[0042] In one embodiment of this utility model, such as Figure 2-4 As shown, a sealing ring 204 is fixedly connected to the surface of one of the connecting rings 202, and a connecting groove corresponding to the sealing ring 204 is formed on the surface of the other connecting ring 202.
[0043] Specifically, the sealing ring 204 and the connecting groove are designed to seal the connection gap after the two flange seats 201 are connected, so as to prevent leakage.
[0044] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 5 As shown, the connecting assembly includes a connecting block 205 and a connecting rod 206, wherein,
[0045] The connecting block 205 is fixedly connected to the outside of the flange seat 201 in a ring shape. The surface of the connecting block 205 on one side of the flange seat 201 has evenly distributed through holes, and the connecting rod 206 is fixedly connected to the surface of the connecting block 205 on the other side of the flange seat 201.
[0046] Specifically, during the process of connecting the two flange pipes 1 through the two flange seats 201, the through holes and connecting rods 206 are used to guide the connection between the two, thereby improving the connection efficiency.
[0047] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 5 As shown, the surface of the connecting rod 206 has two symmetrically distributed mounting grooves 212. The inner wall of the mounting groove 212 is slidably connected to a locking block 211. One end of the locking block 211 extends through the mounting groove 212 and has an inclined surface. The other end of the locking block 211 is fixedly connected to the inner wall of the mounting groove 212 with a spring 214.
[0048] Specifically, during the process of inserting the connecting rod 206 into the through hole, the inclined surface of the locking block 211 can be squeezed by the inner wall of the through hole, causing it to shrink into the interior of the mounting groove 212 and compressing the spring 214. After the locking block 211 passes through the through hole, it can be driven to reset under the action of the spring 214, thereby using the locking block 211 to prevent the connecting rod 206 from separating from the through hole. The operation is simple and can effectively improve the installation efficiency.
[0049] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 5 As shown, a knob 209 is provided at one end of the connecting rod 206 away from the adjacent connecting block 205. A rotating shaft 210 is fixedly connected to the surface of the knob 209. The other end of the rotating shaft 210 passes through the adjacent connecting rod 206 and is rotatably connected to the inner wall of the connecting rod 206. Two connecting ropes 213 are fixedly connected to the surface of the connecting rod 206 and are symmetrically distributed. The other end of the connecting ropes 213 is fixedly connected to the surface of the adjacent locking block 211.
[0050] Specifically, during disassembly, rotating the knob 209 can drive the rotating shaft 210 to rotate and tighten the connecting rope 213. This allows the connecting rope 213 to simultaneously pull the two locking blocks 211 into the mounting groove 212, releasing the restriction on the connecting rod 206 and separating the two flange seats 201, effectively improving the efficiency of installation and disassembly.
[0051] Rotatable connection principle: By setting the slip ring 207 and the groove, the flange pipe 1 can slide freely on the inner wall of the flange seat 201, while ensuring that the flange seat 201 will not fall off the flange pipe 1. The setting of the ball 208 can reduce the friction and make its rotation unobstructed. The setting of the sealing ring 204 and the connecting groove is used to seal the connection gap after the two flange seats 201 are connected, so as to avoid leakage.
[0052] Installation and disassembly principle: During the insertion of the connecting rod 206 into the through hole, the inclined surface of the locking block 211 is squeezed by the inner wall of the through hole, causing it to retract into the mounting groove 212 and compressing the spring 214. After the locking block 211 passes through the through hole, it can be driven to reset under the action of the spring 214. Thus, the locking block 211 prevents the connecting rod 206 from separating from the through hole. During disassembly, rotating the knob 209 can drive the rotating shaft 210 to rotate and tighten the connecting rope 213, thereby simultaneously pulling the two locking blocks 211 to retract into the mounting groove 212, releasing the limiting effect on the connecting rod 206, and allowing the two flange seats 201 to be separated. The operation is simple.
[0053] In summary, the flange for preventing rotational detachment in this embodiment of the utility model, by setting a connecting mechanism, allows the flange pipes to rotate freely after they are connected by the connecting mechanism, preventing the two flange pipes from being unable to rotate due to the connection of the flange seat, thus improving the performance of the flange. At the same time, the connecting component and the sealing component can ensure that the two flange pipes can rotate freely without detaching, and the setting of the connecting component can ensure that the two flange pipes can be quickly installed and disassembled, improving operational efficiency.
[0054] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A flange for preventing rotational detachment, characterized in that, Includes two flange pipes and a connecting mechanism, wherein, The opposite ends of the two flanges are in contact with each other, and the connecting mechanism is disposed at the surface connection of the two flanges; The connection mechanism includes a sealing component and a connecting component, wherein the sealing component is disposed on the surface of the two flange pipes and the connecting component is disposed on the surface of the sealing component.
2. The flange for preventing rotational detachment according to claim 1, characterized in that, The sealing assembly includes two flange seats, two connecting rings, and two slip rings, wherein, Two flange seats are respectively disposed on the surfaces of two flange tubes, two connecting rings are embedded and installed on opposite sides of the two flange seats, two slip rings are respectively fixedly connected to the inner side of the connecting rings, a groove is formed on the surface of the flange tube, the slip ring is slidably connected to the inner wall of the groove, and evenly distributed balls are rotatably connected to the inner wall of the slip ring, the surface of the balls penetrates the slip ring and contacts the inner wall of the groove.
3. The flange for preventing rotational detachment according to claim 2, characterized in that, The inner wall of the flange seat is fixedly connected to a limiting block that engages with the connecting ring.
4. The flange for preventing rotational detachment according to claim 3, characterized in that, One of the connecting rings has a sealing ring fixedly connected to its surface, and the other connecting ring has a connecting groove on its surface that corresponds to the sealing ring.
5. The flange for preventing rotational detachment according to claim 4, characterized in that, The connecting assembly includes a connecting block and a connecting rod, wherein, The connecting block is fixedly connected to the outside of the flange seat in a ring shape. The surface of the connecting block on one side of the flange seat has evenly distributed through holes, and the connecting rod is fixedly connected to the surface of the connecting block on the other side of the flange seat.
6. The flange for preventing rotational detachment according to claim 5, characterized in that, The surface of the connecting rod has two symmetrically distributed mounting slots. A locking block is slidably connected to the inner wall of the mounting slot. One end of the locking block extends through the mounting slot and has an inclined surface. A spring is fixedly connected between the other end of the locking block and the inner wall of the mounting slot.
7. The flange for preventing rotational detachment according to claim 6, characterized in that, A knob is provided at one end of the connecting rod away from the adjacent connecting block. A rotating shaft is fixedly connected to the surface of the knob. The other end of the rotating shaft passes through the adjacent connecting rod and is rotatably connected to the inner wall of the connecting rod. Two symmetrically distributed connecting ropes are fixedly connected to the surface of the connecting rod. The other end of the connecting ropes is fixedly connected to the surface of the adjacent locking block.