A connection anti-loose stainless steel connection flange

Abstract

The utility model discloses a kind of stainless steel connecting flanges of connecting anti-loosening, belong to flange technical field, including first flange main body and second flange main body, the first flange main body and second flange main body are connected by the multiple mounting holes of its surface opening cooperation bolt, the anti-loosening mechanism includes first connecting piece and second connecting piece, the first connecting piece is rotatably connected in the side of first flange main body, the second connecting piece is fixedly connected in the side of second flange main body. By being respectively arranged in the side of two flange main bodies with first connecting piece and second connecting piece, after two flange main bodies are connected by bolt, the insert block of first connecting piece will be inserted into second connecting piece, by rotating second connecting piece, first connecting piece and second connecting piece can be fixed by clamping block cooperation with card slot, simple and quick operation, it is convenient for staff to install flange, and also improve installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to a stainless steel connecting flange for preventing loosening of the connection. Background Technology

[0002] Flanges are disc-shaped components used to connect pipes, valves, or equipment. They are fastened in pairs with bolts to ensure sealing and structural stability. Preventing loosening is crucial: vibration or temperature changes can reduce bolt preload, leading to media leakage or safety accidents; high-pressure or corrosive media can damage the sealing surface, causing contamination or equipment damage. To prevent bolt damage from causing flange loosening, a stainless steel connecting flange with anti-loosening design is needed.

[0003] According to the Chinese patent "Flange with anti-loosening function" authorization announcement number "CN221525827U", the device is equipped with a reinforcement device. Both flange bodies can be movably inserted into the corresponding mounting connection sleeves. Then, the two flange bodies are tightly connected by bolts. The corresponding surface of the reinforcement positioning sleeve is attached to the outer side of the corresponding surface of the flange body. After the two flange bodies are tightly connected by bolts, the outer side can be further supported and reinforced, thus achieving the purpose of anti-loosening function.

[0004] Although the above-mentioned application can further support and reinforce the two flanges by movably inserting the two flange bodies into the corresponding mounting connection sleeve to achieve the purpose of preventing loosening, the application still requires the two flange bodies to be fixed in the mounting connection sleeve by bolts. Flanges are usually used for connecting pipes or valves, and the installation space for some pipes and valves is relatively narrow. Repeatedly tightening the bolts can easily increase the difficulty of the workers' work.

[0005] Based on this, the present invention designs a stainless steel connecting flange with anti-loosening feature to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a stainless steel connecting flange for preventing loosening.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A stainless steel connecting flange with anti-loosening feature includes a first flange body and a second flange body, which are connected by bolts through a plurality of mounting holes on their surfaces.

[0009] Furthermore, the anti-loosening mechanism includes a first connector and a second connector, wherein the first connector is rotatably connected to the side of the first flange body, and the second connector is fixedly connected to the side of the second flange body.

[0010] Furthermore, a plurality of insert blocks are fixedly connected to the lower surface of the first connector. The insert blocks are right-angled blocks with an arc, and the surface of the insert blocks is provided with a slot.

[0011] Furthermore, the inner wall of the second connector is provided with multiple sliding grooves for the insertion block to slide, and a locking block is provided inside the sliding groove. The cross-section of the locking block is a right-angled triangle and matches the shape of the locking groove.

[0012] Furthermore, two sliding rods are fixedly connected to the upper surface of the card block, and both sliding rods pass through the second connector and are slidably connected to the second connector;

[0013] Furthermore, a spring is fixedly connected between the upper surface of the card block and the inner top wall of the second connector, and a rectangular groove for receiving the card block is provided on the inner top wall of the second connector.

[0014] Furthermore, a connecting rod is fixedly connected to the top of the two sliding rods, and a telescopic rod is slidably connected to the inner wall of the connecting rod. The telescopic rod has a "J" shaped cross-section. A limiting block is fixedly connected to the upper surface of the second connecting member, and a limiting hole that matches the shape of the telescopic rod is opened on the surface of the limiting block.

[0015] Furthermore, a limiting ring is fixedly connected to the side of the second connector, and a rotating block is provided on the periphery of the second connector, the rotating block being rotatably connected to the limiting ring;

[0016] Furthermore, a stop block is fixedly connected to the inner bottom wall of the rotating block. The stop block is an arc-shaped block and is located inside the second connecting member. Beneficial effects

[0017] 1. By setting the first connector and the second connector on the sides of the two flange bodies respectively, after the two flange bodies are connected by bolts, the insert of the first connector will be inserted into the second connector. By rotating the second connector, the first connector and the second connector can be fixed by the locking block and the locking groove. The operation is simple and quick, which makes it convenient for workers to install the flange and also improves the installation efficiency.

[0018] 2. By setting a sliding rod on the upper surface of the clamping block, when the flange needs to be disassembled and maintained, the bolts of the flange can be disassembled by simply pulling the sliding rod upward and fixing it on the limiting block, which facilitates the quick disassembly and maintenance of the flange by the staff; at the same time, by setting a rotating block in conjunction with a stop block, the connection between the first and second connecting parts can be protected after the flange is installed, reducing the corrosion of rainwater or other impurities and increasing the service life of the flange. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a perspective view of the main structure of a stainless steel connecting flange for preventing loosening according to this utility model;

[0021] Figure 2 This is a schematic diagram showing the connection between the anti-loosening mechanism of a stainless steel connecting flange and the flange body according to the present invention.

[0022] Figure 3 This is a schematic diagram showing the connection between the second connecting member and the rotating block of a stainless steel connecting flange for preventing loosening according to this utility model.

[0023] Figure 4 This is a cross-sectional view of the second connecting member of a stainless steel connecting flange for preventing loosening according to this utility model.

[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0025] The labels in the diagram represent:

[0026] 100. First flange body; 200. Second flange body; 300. Anti-loosening mechanism; 310. First connecting piece; 311. Insert block; 312. Slot; 320. Second connecting piece; 321. Locking block; 322. Slide rod; 323. Spring; 324. Connecting rod; 325. Telescopic rod; 326. Limiting block; 330. Rotating block; 331. Limiting ring; 332. Stop block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-5A stainless steel connecting flange with anti-loosening mechanism includes a first flange body 100 and a second flange body 200. The first flange body 100 and the second flange body 200 are connected by bolts through multiple mounting holes on their surfaces. The anti-loosening mechanism 300 includes a first connector 310 and a second connector 320. The first connector 310 is rotatably connected to the side of the first flange body 100, and the second connector 320 is fixedly connected to the side of the second flange body 200.

[0030] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, in a preferred embodiment of the present invention, a plurality of insert blocks 311 are fixedly connected to the lower surface of the first connector 310. The insert blocks 311 are right-angled blocks with an arc. The surface of the insert blocks 311 is provided with a slot 312. The inner wall of the second connector 320 is provided with a plurality of sliding grooves for the insert blocks 311 to slide. The inside of the sliding groove is provided with a locking block 321. The cross-section of the locking block 321 is a right-angled triangle and matches the shape of the slot 312. Two sliding rods 322 are fixedly connected to the upper surface of the locking block 321. Both sliding rods 322 pass through the second connector 320 and are slidably connected to the second connector 320. A spring 323 is fixedly connected between the upper surface of the locking block 321 and the inner top wall of the second connector 320. The inner top wall of the second connector 320 is provided with a rectangular groove for receiving the locking block 321.

[0031] In this embodiment, the surface of the second connector 320 is provided with an arc-shaped opening that matches the shape of the insert 311. After the two flanges are fixed, the two inserts 311 will be inserted into the arc-shaped opening. At this time, the plane of the slot 312 of the insert 311 is completely inside the second connector 320. When the first connector 310 is rotated, the plane will penetrate into the second connector 320. At the same time, the plane will fit against the inner top wall of the second connector 320. The two flanges are prevented from falling off by the cooperation between the plane and the inner wall of the second connector 320. In this mechanism, the first connector 310, the second connector 320 and their two internal components are all made of stainless steel.

[0032] In some embodiments, such as Figure 3 , Figure 4 and Figure 5As shown, in a preferred embodiment of this utility model, a connecting rod 324 is fixedly connected to the top of the two sliding rods 322, and a telescopic rod 325 is slidably connected to the inner wall of the connecting rod 324. The telescopic rod 325 has a "J" shaped cross-section. A limiting block 326 is fixedly connected to the upper surface of the second connecting member 320. A limiting hole matching the shape of the telescopic rod 325 is opened on the surface of the limiting block 326. A limiting ring 331 is fixedly connected to the side of the second connecting member 320. A rotating block 330 is provided around the second connecting member 320. The rotating block 330 is rotatably connected to the limiting ring 331. A stop block 332 is fixedly connected to the inner bottom wall of the rotating block 330. The stop block 332 is an arc-shaped block and is located inside the second connecting member 320.

[0033] In this embodiment, when it is necessary to disassemble the two flange bodies, the two sliding rods 322 need to be pulled upward by the telescopic rod 325. When the telescopic rod 325 is pulled upward, the connecting rod 324 will move upward. When the telescopic rod 325 moves to be flush with the limiting hole opened in the limiting block 326, the telescopic rod 325 is inserted into the limiting hole. At this time, the locking block 321 will be driven upward by the sliding rod 322 to the rectangular groove opened in the inner top wall of the second connecting member 320. At this time, the locking block 321 is completely removed from the locking groove 312, and the insertion block 311 is no longer restricted. Then, the first connecting member 310 is rotated to move the insertion block 311 to the initial position, and the two flanges can be disassembled.

[0034] After the first connecting block and the second connecting block are connected, in order to prevent impurities from entering the groove inside the second connecting member 320, it is necessary to rotate the rotating block 330. The rotating block 330 will rotate along the limiting ring 331, and at the same time drive the stop block 332 to rotate. At this time, the stop block 332 moves out from the inner wall of the second connecting member 320 and fits against the insert block 311, blocking the gap between the insert block 311 and the second connecting block to reduce the entry of impurities.

[0035] In use, the two flange bodies are first connected by bolts through corresponding positioning holes. After the two flange bodies are connected, the insert block 311 is inserted into the interior of the second connecting member 320. Then, the first connecting member 310 is rotated, causing the insert block 311 to rotate along the side of the first flange body. At this time, the insert block 311 rotates deeper into the second connecting member 320. When the insert block 311 just contacts the locking block 321, the insert block 311 pushes the locking block 321 upward along the inclined surface of the locking block 321 and compresses the spring 323. When the insert block 311 abuts against the inner wall of the second connector 320, the slot 312 moves just below the insert block 321. At this time, the insert block 321 loses the pushing force of the insert block 311, the spring 323 is released, and the insert block 321 moves downward, so that the insert block 321 is inserted into the slot 312. The insert block 311 is fixed by the slot 312 and the inner wall of the second connector 320. At this time, most of the insert block 311 is located inside the second connector 320. The insert block 311 and the second connector 320 limit the two flange bodies and prevent the flanges from loosening.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stainless steel connecting flange for preventing loosening, comprising a first flange body (100) and a second flange body (200), wherein the first flange body (100) and the second flange body (200) are connected by bolts through a plurality of mounting holes formed on their surfaces, characterized in that: The anti-loosening mechanism (300) includes a first connector (310) and a second connector (320). The first connector (310) is rotatably connected to the side of the first flange body (100), and the second connector (320) is fixedly connected to the side of the second flange body (200).

2. The stainless steel connecting flange for preventing loosening according to claim 1, characterized in that, The lower surface of the first connector (310) is fixedly connected with a plurality of inserts (311), the inserts (311) being right-angled blocks with an arc, and the surface of the inserts (311) having a slot (312).

3. The stainless steel connecting flange for preventing loosening according to claim 2, characterized in that, The inner wall of the second connector (320) is provided with a plurality of sliding grooves for sliding of the insert (311). The inside of the sliding groove is provided with a locking block (321). The cross-section of the locking block (321) is a right triangle and matches the shape of the locking groove (312).

4. The stainless steel connecting flange for preventing loosening according to claim 3, characterized in that, The upper surface of the card block (321) is fixedly connected to two slide rods (322), both of which pass through the second connector (320) and are slidably connected to the second connector (320).

5. The stainless steel connecting flange for preventing loosening according to claim 4, characterized in that, A spring (323) is fixedly connected between the upper surface of the card block (321) and the inner top wall of the second connector (320), and the inner top wall of the second connector (320) is provided with a rectangular groove for receiving the card block (321).

6. The stainless steel connecting flange for preventing loosening according to claim 4, characterized in that, The top ends of the two sliding rods (322) are fixedly connected to a connecting rod (324), and a telescopic rod (325) is slidably connected to the inner wall of the connecting rod (324). The telescopic rod (325) has a "J" shaped cross section. A limiting block (326) is fixedly connected to the upper surface of the second connecting member (320). The surface of the limiting block (326) is provided with a limiting hole that matches the shape of the telescopic rod (325).

7. The stainless steel connecting flange for preventing loosening according to claim 1, characterized in that, A limiting ring (331) is fixedly connected to the side of the second connector (320), and a rotating block (330) is provided on the periphery of the second connector (320). The rotating block (330) is rotatably connected to the limiting ring (331).

8. The stainless steel connecting flange for preventing loosening according to claim 7, characterized in that, The inner bottom wall of the rotating block (330) is fixedly connected to a stop block (332), which is an arc-shaped block and is located inside the second connector (320).

Images