Flange fixing device suitable for various outer diameter sizes
By combining the support frame, clamping mechanism and support platform, and using slide rails, Z-shaped clamps and cylinder drive, the problem of poor adaptability of existing flange fixing devices is solved, and rapid clamping and stable fixing of various outer diameter sizes is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN UPLUS FLANGE CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-19
AI Technical Summary
Existing flange fixing devices are difficult to adapt to various outer diameter sizes, resulting in troublesome loading and unloading and unstable clamping.
A fixing device including a support frame, a clamping mechanism and a support platform was designed. It uses a slide rail and a Z-shaped clamping block in conjunction with a cylinder drive to achieve rapid clamping of the flange and fixation to accommodate various outer diameter sizes.
It enables rapid and effective clamping and fixing of flanges, adapts to various outer diameter variations, and improves operational efficiency and stability.
Smart Images

Figure CN224373783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal products technology, and in particular to a flange fixing device that is adaptable to various outer diameter sizes. Background Technology
[0002] A flange is a disc-shaped part used to connect pipes, valves or equipment. They are usually used in pairs and are sealed by bolts and gaskets. They are widely used in industries such as chemical, petrochemical and fire protection.
[0003] After the flange is forged, its inner wall needs further finishing, requiring a fixing device for effective fixation. However, most current fixing devices are cumbersome to install and remove, and the entire fixture cannot effectively clamp and fix the flange when the outer diameter changes significantly.
[0004] Therefore, it is necessary to develop a flange fixing device that can adapt to various outer diameter sizes in order to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this utility model is to provide a flange fixing device that is compatible with various outer diameter sizes, enabling fast and effective clamping and fixing of flanges with various outer diameter sizes.
[0006] To achieve the above-mentioned utility model objectives, a flange fixing device adaptable to various outer diameter sizes is provided, including a support frame, a clamping mechanism, and a support platform;
[0007] A mounting platform is fixed on the support frame;
[0008] The mounting platform has a hollowed-out area in the middle;
[0009] The mounting platform is provided with a slide rail along its length;
[0010] The clamping mechanism includes two clamping modules and a driving device;
[0011] The two clamping modules are symmetrically arranged on the slide rail;
[0012] Both clamping modules include a slider and a Z-shaped clamping block;
[0013] The slider is slidably mounted on the slide rail; the Z-shaped clamp is fixed on the slider, and the clamping heads of the two Z-shaped clamps are arranged facing each other;
[0014] The driving device is used to drive the two sliders to move closer to each other or further apart.
[0015] The support platform is fixed in the middle of the mounting platform, and the working surface of the support platform is located directly above the slide rail.
[0016] Preferably, the clamping head of the Z-shaped clamping block has an inwardly concave V-shaped structure, and the inner wall of the V-shaped structure is provided with an elastic rubber layer.
[0017] Specifically, the drive device includes a cylinder and two connecting frames;
[0018] The cylinder is installed at the middle position of the top lower surface of the support frame, and the piston rod of the cylinder passes vertically upward through the top of the support frame;
[0019] The piston rod of the cylinder is provided with a connecting part at the top, and connecting shafts are provided horizontally and symmetrically on both sides of the connecting part;
[0020] The two connecting frames are symmetrical and hinged to the lower sides of the slide rail;
[0021] The lower two sides of the connecting frame are symmetrically provided with first waist-shaped through holes, and the two connecting shafts pass through the two first waist-shaped through holes of the corresponding connecting frame respectively.
[0022] Both sliders have horizontal connecting parts on both sides;
[0023] The upper sides of the two connecting frames are symmetrically provided with second waist-shaped through holes, and the connecting parts on both sides of the two sliders pass through the second waist-shaped through holes of the corresponding connecting frames.
[0024] Preferably, both ends of the slide rail are fixed with baffles by bolts.
[0025] This utility model provides a flange fixing device that adapts to various outer diameter sizes, which has the following advantages compared with the prior art:
[0026] The drive device enables two sliders to move closer or further apart on the slide groove, and Z-shaped clamps are installed on the two sliders respectively to quickly clamp and fix the flange placed on the support platform. Within a certain range, it can adapt to flanges of various outer diameters and effectively clamp and fix them. Attached Figure Description
[0027] Figure 1 A schematic diagram of the structure connecting the support frame, mounting platform, slide rail, and two sliders;
[0028] Figure 2 This is a schematic diagram of a flange fixing device that can adapt to various outer diameter sizes;
[0029] Figure 3 This is an operational diagram of a flange fixing device that adapts to various outer diameter sizes. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0031] This embodiment provides a flange fixing device adaptable to various outer diameter sizes, including a support frame 1, a clamping mechanism, and a support platform 2.
[0032] like Figure 1 As shown, a mounting platform 3 is fixed on the support frame 1; the mounting platform 3 has a hollow area 4 in the middle; and a slide rail 5 is provided on the mounting platform 3 along its length.
[0033] The clamping mechanism includes two clamping modules and a driving device; the two clamping modules are symmetrically arranged on the slide rail 5; each clamping module includes a slider 6 and a Z-shaped clamping block 7; the slider 6 is slidably arranged on the slide rail 5; the Z-shaped clamping block 7 is fixed on the slider 6, and the clamping heads of the two Z-shaped clamping blocks 7 are arranged facing each other.
[0034] In this embodiment, the clamping head of the Z-shaped clamping block 7 is a V-shaped structure 8 that is recessed inward, and an elastic rubber layer (not shown in the figure) is provided on the inner wall of the V-shaped structure 8. With this configuration, when the Z-shaped clamping block 7 clamps the outer wall of the flange, the elastic rubber layer will not cause the clamp to slip, and it can also cause scratches to the outer wall of the flange.
[0035] The driving device is used to drive the two sliders 6 to move closer or further apart, so that the two Z-shaped clamps 7 can hold the outer wall of the flange and achieve fixation.
[0036] Specifically, in this embodiment, such as Figure 2 As shown, the driving device includes a cylinder 9 and two connecting frames 10; the cylinder 9 is installed at the middle position of the lower top surface of the support frame 1, and the piston rod of the cylinder 9 passes vertically upward through the top of the support frame 1; the top of the piston rod of the cylinder 9 is provided with a connecting part 11, and connecting shafts 12 are horizontally symmetrically provided on both sides of the connecting part 11.
[0037] The two connecting frames 10 are symmetrical and hinged to the lower sides of the slide rail 5; the lower sides of the connecting frames 10 are symmetrically provided with first waist-shaped through holes 13, and the two connecting shafts 12 pass through the two first waist-shaped through holes 13 of the corresponding connecting frames 10 respectively.
[0038] Both sides of the two sliders 6 are provided with horizontal connecting parts 14; the upper sides of the two connecting frames 10 are symmetrically provided with second waist-shaped through holes 15, and the connecting parts 14 on both sides of the two sliders 6 pass through the second waist-shaped through holes 15 of the corresponding connecting frames 10 respectively.
[0039] Under the action of cylinder 9 and the transmission of two connecting frames 10, and with the first waist-shaped through hole 13 and the second waist-shaped through hole 15 compensating for the length, the two sliders 6 move closer or further apart, thereby achieving the clamping of the Z-shaped clamping block 7 on the outer wall of the flange.
[0040] The support platform 2 is fixed in the middle of the mounting platform 3, and the working surface of the support platform 2 is located directly above the slide rail 5; the support platform 2 is used to place the flange to be fixed.
[0041] like Figure 3 As shown, in this embodiment, both ends of the slide rail 5 are fixed with baffles 16 by bolts, which effectively prevents the slider 6 from disengaging from the slide rail 5.
[0042] like Figure 3 As shown, when fixing the flange 17, the flange 17 is first placed vertically in the middle of the support platform 2. Then, the cylinder 9 is activated. Under the action of the connecting frame 10, the two sliders 6 move closer to each other. Finally, the Z-shaped clamps 7 on the two sliders 6 clamp and fix the flange 17 placed on the support platform 2.
[0043] 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 fixing device suitable for adapting to a plurality of outside diameter sizes, characterized by, Includes support frame, clamping mechanism and support platform; A mounting platform is fixed on the support frame; The mounting platform has a hollowed-out area in the middle; The mounting platform is provided with a slide rail along its length; The clamping mechanism includes two clamping modules and a driving device; The two clamping modules are symmetrically arranged on the slide rail; Both clamping modules include a slider and a Z-shaped clamping block; The slider is slidably mounted on the slide rail; the Z-shaped clamp is fixed on the slider, and the clamping heads of the two Z-shaped clamps are arranged facing each other; The driving device is used to drive the two sliders to move closer to each other or further apart; The support platform is fixed in the middle of the mounting platform, and the working surface of the support platform is located directly above the slide rail.
2. A flange fixing device suitable for adapting to various outside diameter sizes as claimed in claim 1, characterized in that, The clamping head of the Z-shaped clamping block has an inwardly concave V-shaped structure, and the inner wall of the V-shaped structure is provided with an elastic rubber layer.
3. A flange fixing device adaptable to multiple outer diameter sizes as described in claim 1 or 2, characterized in that, The drive device includes a cylinder and two connecting frames; The cylinder is installed at the middle position of the top lower surface of the support frame, and the piston rod of the cylinder passes vertically upward through the top of the support frame; The piston rod of the cylinder is provided with a connecting part at the top, and connecting shafts are provided horizontally and symmetrically on both sides of the connecting part; The two connecting frames are symmetrical and hinged to the lower sides of the slide rail; The lower two sides of the connecting frame are symmetrically provided with first waist-shaped through holes, and the two connecting shafts pass through the two first waist-shaped through holes of the corresponding connecting frame respectively. Both sliders have horizontal connecting parts on both sides; The upper sides of the two connecting frames are symmetrically provided with second waist-shaped through holes, and the connecting parts on both sides of the two sliders pass through the second waist-shaped through holes of the corresponding connecting frames.
4. A flange fixing device adaptable to multiple outer diameter sizes as described in claim 1, characterized in that, Both ends of the slide rail are fixed with baffles by bolts.