Seepage-proof clamp capable of adapting to installation with different diameters
By installing an adjustable number of locking devices and rubber sealing gaskets on the outside of the flange, the problems of insufficient versatility and sealing performance of existing clamps in connecting pipes of different diameters are solved, achieving both fastening and leak-proof effects for pipes of different diameters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-03
AI Technical Summary
Existing clamps have low versatility when connecting pipes of different diameters and are prone to leakage.
A seepage-proof clamp was designed, which uses an adjustable number of locking devices and rubber sealing gaskets on the outside of the flange, and lock bolts and threads to fasten and seal pipes of different diameters.
It achieves effective fastening and sealing of pipes of different diameters, prevents leakage, saves manpower, and is easy to operate.
Smart Images

Figure CN224079758U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of pipe connection technology, and more specifically to a leak-proof clamp that can be installed to accommodate different diameters. Background Technology
[0002] Pipe clamps are fastening devices used to connect pipes and play an important role. Pipe clamps are usually made of metal and their structure generally includes a clamp body, bolts, and nuts. The clamp body is fitted onto the pipe connection, and then the bolts and nuts are passed through the holes at both ends of the clamp. The bolts and nuts are then tightened, and the clamp body is locked in place by the threaded engagement between the bolts and nuts, so that the clamp fits tightly against the pipe connection, thereby installing the pipe connection.
[0003] However, in practice, it has been noted that the opening angle of the clamp is limited, so different diameter clamps are needed to fix pipes of different diameters, resulting in low versatility. In order to install the clamp on the outside of the pipe, the side of the clamp will have an opening. After the clamp is locked, there will still be a gap at the opening, which will cause the material inside the pipe to leak out from the opening and affect the sealing effect of the pipe connection. Utility Model Content
[0004] The purpose of this invention is to provide a leak-proof clamp that can be installed to accommodate pipes of different diameters. Different numbers of clamps are selected based on the diameter of the pipe to be connected, and then these clamps are installed on the outside of the flange at the end of the pipe. This allows for the locking of pipes of different diameters. A rubber sealing gasket is placed between the two flanges to prevent leakage at the connection point, greatly saving manpower. This solves the technical problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] The anti-seepage clamps that can adapt to different diameters include two symmetrically arranged pipes to be connected. The ends of the pipes to be connected are fixedly connected to flanges, and the flanges have an integrally formed annular protrusion on the side near the pipes to be connected. Locking devices are snapped into the outer side of the flanges in an annular array.
[0007] The locking device includes an arc-shaped locking device, in which inner flip frames are symmetrically arranged. Each inner flip frame has a corresponding locking bolt on its side, and the locking bolt is movably connected to the threaded locking holes on both sides of the arc-shaped locking device.
[0008] As a further technical solution of this utility model, the arc-shaped locking device includes an arc-shaped metal shell arranged in a U-shape, locking bolts are symmetrically arranged on both sides of the arc-shaped metal shell, and the locking bolts are threadedly connected to the side of the arc-shaped metal shell.
[0009] As a further technical solution of this utility model, the inner flipping frame includes a semi-circular locking block, which is symmetrically arranged in the arc-shaped metal shell, and the outer side of the semi-circular locking block fits into the semi-circular groove opened on the inner side of the arc-shaped metal shell.
[0010] As a further technical solution of this utility model, the bottom of the semi-circular locking block is integrally provided with an extended top plate, and the end of the extended top plate away from the semi-circular locking block is integrally provided with a limiting protrusion, and the end of the locking bolt passes through the arc-shaped metal shell and fits against the side of the extended top plate.
[0011] As a further technical solution of this utility model, the pipeline to be connected includes two small-diameter pipes, the ends of which are fixedly connected to a flange.
[0012] As a further technical solution of this utility model, the pipeline to be connected includes two large-diameter pipes, the ends of which are fixedly connected to a flange.
[0013] As a further technical solution of this utility model, the flange is symmetrically arranged between two extended top plates, and the arc-shaped metal shell is sleeved on the outside of the flange, with the limiting protrusion located between the annular protrusion and the pipe to be connected.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention utilizes a rotating locking bolt. The threaded engagement between the locking bolt and the threaded locking hole pushes the symmetrically arranged extension top plates towards the center, thereby clamping the flange. Combined with the rubber sealing gasket between the two flanges, this ensures a seal between the two pipes to be connected, preventing leakage at the connection point. In this invention, the outer side of the semi-circular locking block fits into a semi-circular groove. When the extension top plate moves, it causes the semi-circular locking block to rotate inside the semi-circular groove, causing the inner flip-frame to tilt. This tilts in conjunction with the arc-shaped locking device and the locking bolt to lock the pipes to be connected. This invention also allows for the installation of flanges on the ends of small-diameter or large-diameter pipes of different diameters. Then, depending on the diameter of the pipes to be connected, different numbers of clamps are fixed to the outer side of the flanges, thereby locking the pipes of different diameters. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model in use.
[0017] Figure 2 This utility model Figure 1 The left view.
[0018] Figure 3 This utility model Figure 1 A schematic diagram of the bottom structure.
[0019] Figure 4 This is a three-dimensional structural diagram of the present invention.
[0020] Figure 5 This utility model Figure 1 A magnified view of a portion of the image.
[0021] Figure 6 This is a three-dimensional structural diagram of the present invention.
[0022] Figure 7 This utility model Figure 1 A magnified view of a portion of the image.
[0023] In the picture:
[0024] Arc-shaped locking device-1, arc-shaped metal shell-11, semi-circular groove-12, threaded locking hole-13, inner flip frame-2, semi-circular locking block-21, extension top plate-22, limiting protrusion-23, locking bolt-3, small diameter pipe-4, flange-5, large diameter pipe-6, annular protrusion-7. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-7 This utility model embodiment provides a seepage-proof clamp that can be installed to accommodate different diameters. It includes two symmetrically arranged pipes to be connected. The ends of the pipes to be connected are fixedly connected to a flange 5. The flange 5 has an integrally formed annular protrusion 7 on the side near the pipe to be connected. The outer side of the flange 5 is fitted with a locking device in an annular array.
[0027] The locking device includes an arc-shaped locking device 1, in which inner flip frames 2 are symmetrically arranged. Each inner flip frame 2 has a corresponding locking bolt 3 on its side, and the locking bolt 3 is movably connected to the threaded locking holes 13 opened on both sides of the arc-shaped locking device 1.
[0028] In this embodiment, the arc-shaped locking device 1 includes an arc-shaped metal shell 11 arranged in a U-shape, and locking bolts 3 are symmetrically arranged on both sides of the arc-shaped metal shell 11, and the locking bolts 3 are threadedly connected to the side of the arc-shaped metal shell 11.
[0029] In this embodiment, the inner flip frame 2 includes a semi-circular locking block 21, which is symmetrically arranged in the arc-shaped metal shell 11, and the outer side of the semi-circular locking block 21 fits against the semi-circular groove 12 opened on the inner side of the arc-shaped metal shell 11.
[0030] In this embodiment, the bottom of the semicircular locking block 21 is integrally provided with an extended top plate 22, and the end of the extended top plate 22 away from the semicircular locking block 21 is integrally provided with a limiting protrusion 23. The end of the locking bolt 3 passes through the arc-shaped metal shell 11 and is attached to the side of the extended top plate 22.
[0031] In this embodiment, the pipe to be connected includes two small-diameter pipes 4, the ends of which are fixedly connected to a flange 5.
[0032] In this embodiment, the pipeline to be connected includes two large-diameter pipes 6, the ends of which are fixedly connected to flanges 5.
[0033] In this embodiment, the flange 5 is symmetrically arranged between two extended top plates 22, and the arc-shaped metal shell 11 is sleeved on the outside of the flange 5. The limiting protrusion 23 is located between the annular protrusion 7 and the pipe to be connected.
[0034] By adopting the above technical solution, according to the diameter of the pipe to be connected, different numbers of clamps are selected to fit the flanges 5 at the ends of the two pipes to be connected together, and a rubber sealing gasket is placed between the two flanges 5. Then, the arc-shaped metal shell 11 is placed on the outside of the flange 5, and the extended top plate 22 is located on the side of the flange 5 respectively. Then, the locking bolt 3 is rotated. Through the threaded engagement between the locking bolt 3 and the threaded locking hole 13, the end of the locking bolt 3 pushes the symmetrically arranged extended top plate 22 toward the middle, and the limiting protrusion 23 is located between the pipe to be connected and the limiting protrusion 23. Through the squeezing between the limiting protrusions 23 on both sides, the two flanges 5 are tightly pressed together.
[0035] In this embodiment, the inner end of the arc-shaped metal shell 11 is provided with a semi-circular groove 12, and the outer side of the semi-circular locking block 21 is in contact with the semi-circular groove 12, so that the semi-circular locking block 21 can rotate inside the semi-circular groove 12.
[0036] In this embodiment, the inner flipping frame 2 is symmetrically located on both sides of the flange 5, and a rubber sealing ring is placed between two adjacent flanges 5. Through the compression between the symmetrically arranged inner flipping frames 2, the two flanges 5 are brought closer together, and the rubber sealing gasket is used to seal the connection to prevent leakage at the connection.
[0037] In this embodiment, the inner side of the small-diameter pipe 4 and the inner side of the large-diameter pipe 6 are respectively connected to the inner side of the flange 5. Through the cooperation between the flange 5 and the locking device, the small-diameter pipe 4 or the large-diameter pipe 6 can be connected.
[0038] The working principle of this utility model is as follows: In use, firstly, select different numbers of clamps according to the diameter of the pipes to be connected. For small-diameter pipes 4, three to five clamps can be selected; for large-diameter pipes 6, seven to ten clamps can be selected. Then, fit the flanges 5 at the ends of the two pipes to be connected together. Next, attach the arc-shaped metal shell 11 to the outside of the two adjacent flanges 5, and symmetrically arrange the extended top plates 22 on both sides of the flanges 5. Tighten the locking bolts 3. The connection is achieved through the locking bolts 3 and the threaded lock... The threaded engagement between the tight holes 13 allows the locking bolt 3 to move on the side of the arc-shaped metal shell 11. The end of the locking bolt 3 pushes the symmetrically arranged extended top plate 22 towards the center, and the semi-circular locking block 21 rotates inside the semi-circular groove 12. At this time, the annular protrusion 7 is located between the limiting protrusion 23 and the semi-circular locking block 21, and the flange 5 that are pressed together is locked by the extrusion force. With the rubber sealing gasket between the two flanges 5, the connection is sealed to prevent leakage. The structure is simple and the operation is very convenient.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A waterproof clamp capable of being installed to accommodate different diameters, characterized in that: It includes two symmetrically arranged pipes to be connected. The ends of the pipes to be connected are fixedly connected to flanges (5), and the flanges (5) are integrally provided with annular protrusions (7) on the side near the pipes to be connected. The outer side of the flanges (5) is fitted with locking devices in an annular array. The locking device includes an arc-shaped locking device (1), and an inner flip frame (2) is symmetrically arranged in the arc-shaped locking device (1). Each inner flip frame (2) has a corresponding locking bolt (3) on its side. The locking bolt (3) is movably connected to the threaded locking holes (13) opened on both sides of the arc-shaped locking device (1).
2. The waterproof clamp according to claim 1, capable of adapting to installation of different diameters, is characterized in that: The arc-shaped locking device (1) includes an arc-shaped metal shell (11) arranged in a U-shape, and locking bolts (3) are symmetrically arranged on both sides of the arc-shaped metal shell (11), and the locking bolts (3) are threadedly connected to the side of the arc-shaped metal shell (11).
3. The waterproof clamp according to claim 2, capable of adapting to installation of different diameters, is characterized in that: The inner flip frame (2) includes a semi-circular locking block (21), which is symmetrically arranged in the arc-shaped metal shell (11), and the outer side of the semi-circular locking block (21) fits against the semi-circular groove (12) opened on the inner side of the arc-shaped metal shell (11).
4. The waterproof clamp according to claim 3, capable of adapting to installation of different diameters, is characterized in that: The bottom of the semicircular locking block (21) is integrally provided with an extended top plate (22), and the end of the extended top plate (22) away from the semicircular locking block (21) is integrally provided with a limiting protrusion (23). The end of the locking bolt (3) passes through the arc-shaped metal shell (11) and is attached to the side of the extended top plate (22).
5. The waterproof clamp according to claim 1, capable of adapting to installation of different diameters, is characterized in that: The pipeline to be connected includes two small-diameter pipes (4), the ends of which are fixedly connected to a flange (5).
6. The waterproof clamp according to claim 5, capable of adapting to installation of different diameters, is characterized in that: The pipeline to be connected includes two large-diameter pipes (6), the ends of which are fixedly connected to flanges (5).
7. The waterproof clamp according to claim 6, capable of adapting to installation of different diameters, is characterized in that: The flange (5) is symmetrically arranged between two extended top plates (22), and the arc-shaped metal shell (11) is sleeved on the outside of the flange (5). The limiting protrusion (23) is located between the annular protrusion (7) and the pipe to be connected.