Fitted pressure ring

Abstract

The application discloses an assembled compression ring, and mainly solves the technical problems of high assembly difficulty and poor flexibility of a traditional hoop. The assembled compression ring comprises a first ring body and a second ring body which are in a semi-ring structure and are respectively provided with a fixing seat at one end; the other end of the first ring body is fixedly provided with a hinge shaft which is axially parallel to the first ring body, and the other end of the second ring body is fixedly provided with a hinge hook which is used for being clamped outside the hinge shaft and is used for rotating around the hinge shaft; the two sides of the first ring body and the second ring body are respectively provided with a first shoulder and a second shoulder along the edge contour thereof, and the first shoulder and the second shoulder are used for being correspondingly clamped to the outside of a pipe or a threaded step of a pipe fitting. The assembled compression ring is flexible and convenient to use, has low maintenance cost and high connection reliability.

Description

Technical Field

[0001] This application relates to the field of water supply and drainage technology, specifically to an assembled pressure ring. Background Technology

[0002] In the field of building water supply and drainage, the reliability of pipe connections determines the safety, sealing, construction efficiency, and long-term operational reliability of the entire water supply and drainage system. Traditional connection methods between pipes and fittings or between pipes include welding, flange connections, threaded connections, and grooved connections.

[0003] Welding is a common method for pipe connections. Welding involves melting two pipe sections at high temperatures to permanently fuse them together, resulting in high connection strength and good sealing. However, it is complex, and the pipe system loses its detachability after welding, posing significant challenges for future maintenance, modification, and expansion. Flange connections, on the other hand, use bolts to fasten two flanges, each fixed to the end of a pipe fitting or tube, together, achieving a detachable connection. Threaded connections involve machining threads at the end of the pipe fitting or tube, achieving connection through thread engagement, and are relatively easy to install. Grooved connections use a specialized grooving or cutting machine to create an annular groove of a certain depth and width at the end of the pipe. A sealing ring is then placed at the pipe connection point, and a ring clamp is used to precisely engage the flange of the ring clamp within the annular groove of the pipe, thus achieving the connection between the pipes through the fit between the flange and the groove.

[0004] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this application found that traditional clamps can only be used for the connection between pipes of the same diameter, and it is difficult to achieve an effective connection between the spiral end fitting and the corresponding pipe. At the same time, the two halves of the traditional clamp are hinged with one end relatively fixed, which makes assembly difficult. When one side of the clamp is damaged, the entire clamp needs to be replaced, resulting in high maintenance costs.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the background technology of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] In view of at least one of the above technical problems, this disclosure provides an assembled pressure ring, which mainly solves the technical problems of high assembly difficulty and poor usage flexibility of traditional clamps.

[0007] According to one aspect of this disclosure, an assembled pressure ring is provided, comprising a first ring body and a second ring body having a semi-annular structure and a fixed seat at one end respectively; a hinge shaft parallel to the axial direction of the first ring body is fixedly provided at the other end of the first ring body, and a hinge hook for engaging with the hinge shaft and for rotating around the hinge shaft is fixedly provided at the other end of the second ring body; a first shoulder and a second shoulder are respectively provided on both sides of the first ring body and the second ring body along their edge contours for correspondingly engaging with the outside of the pipe or the threaded step of the pipe fitting.

[0008] In some embodiments of this disclosure, the assembled pressure ring further includes a sealing ring and a locking ring disposed within the first ring body and the second ring body and correspondingly located between the groove shoulder and the stepped shoulder.

[0009] In some embodiments of this disclosure, the inner diameter of the locking ring matches the diameter of the pipe to be connected, and the inner edge surface of the locking ring is provided with an array of raised lines.

[0010] In some embodiments of this disclosure, the fixing seat of the first ring body and the fixing seat of the second ring body are parallel to each other, and the fixing seat is provided with a bolt through hole for passing through the fastening bolt; the fixing seat of the first ring body or the fixing seat of the second ring body is provided with a countersunk hole on the outside that matches the outer edge contour of the fastening bolt and is used to limit the rotation of the fastening bolt.

[0011] In some embodiments of this disclosure, the two ends of the hinge shaft are respectively provided with hinge seats that are fixedly connected to the first ring body; the gap width between the hinge shaft and the first ring body matches the thickness of the hinge hook; the width of the hinge hook matches the distance between the two hinge seats.

[0012] In some embodiments of this disclosure, the articulated hook includes a hook tail for fixed connection to the second ring body, a hook body with one end connected to the hook tail for rotatable contact with the outside of the articulation shaft and having a semi-circular structure, and a hook head disposed on the other end of the hook body and having an enlarged diameter section along the direction close to the hook body; the two end faces of the hook body for connecting the hook tail and the hook head are coplanar with the two end faces of the second ring body.

[0013] In some embodiments of this disclosure, a reinforcing rib is provided between the fixing seat and the first ring body or the second ring body.

[0014] In some embodiments of this disclosure, the inner side of the fixing seat is provided with a groove for reducing the injection volume.

[0015] One or more technical solutions provided in this application embodiment have at least the following technical effects or advantages: The separate and temporarily quickly assembled first and second rings effectively reduce the assembly process of traditional hinged structures during production, improving production efficiency and reducing production assembly costs. Simultaneously, they reduce packaging volume, allowing more structural components to be accommodated in a package of the same size, thus reducing packaging costs. Furthermore, the separate assembly standard parts design means that only that part of the ring needs to be replaced when damaged, reducing maintenance costs and making it more flexible to use. Moreover, when used in conjunction with locking rings and sealing rings, it avoids the drawback of traditional clamps requiring slotting at the pipe end, improving the reliability of pipe connections. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the assembled pressure ring in one embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the structure of the first ring body in one embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the structure of the second ring body in one embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the locking ring structure in one embodiment of this application.

[0020] In the above figures, 1 is the first ring body, 2 is the second ring body, 31 is the hinge shaft, 32 is the hinge seat, 33 is the hinge hook, 331 is the hook tail, 332 is the hook body, 333 is the hook head, 4 is the fixing seat, 51 is the first shoulder, 52 is the second shoulder, 6 is the locking ring, and 61 is the raised pattern. Detailed Implementation

[0021] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "vertical," "horizontal," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first," "second," etc., used in this application are used to distinguish the described objects and do not have any sequential or technical meaning. And the terms "connection" and "linkage," unless otherwise specified, include both direct and indirect connections (linkages).

[0022] To better understand the technical solution of this application, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] To address the technical problems of high assembly difficulty and poor flexibility in the use of traditional pipe clamps, this example discloses an assembled pressure ring. In this embodiment, although existing pipe clamps are also assembled from two semi-annular clamp bodies with corresponding hinges, their hinge structure cannot be disassembled and must be assembled before leaving the factory, making the hinge structure complex and difficult to assemble. Furthermore, to ensure the strength of the hinge structure, traditional clamps often use metal materials with high structural strength and effective assembly accuracy, but this leads to higher clamp costs and susceptibility to corrosion. While using plastic clamp bodies solves the problems of rust prevention and high cost, the metal hinge part is difficult to reliably connect with the plastic clamp body. Directly replacing the conventional metal hinge structure with plastic would result in reduced structural strength and poor hinge assembly accuracy. Therefore, in this embodiment, see... Figure 1 It includes a first ring body 1 and a second ring body 2, with each ring body having a semi-circular structure, and thus assembled into a circular pressure ring.

[0024] Specifically, to achieve the hinged assembly between the first ring body 1 and the second ring body 2, see [reference needed]. Figure 2 A hinge shaft 31 is fixedly provided at one end of the first ring body 1. The axial direction of the hinge shaft 31 is parallel to the axial direction of the first ring body 1, and the plane of the end face of the first ring body 1 that contacts the second ring body 2 coincides with the symmetrical mid-plane corresponding to the hinge shaft 31. This ensures that the end faces of the first ring body 1 and the second ring body 2 can fit tightly together after hinge assembly, avoiding gaps. See also... Figure 2 In this embodiment, hinge seats 32 that are fixedly connected to the first ring body are respectively provided at both ends of the hinge shaft 31, thereby realizing the relative fixed connection between the hinge shaft 31 and the first ring body 1 through the hinge seats 32.

[0025] For matching, see Figure 3 In this embodiment, one end of the second ring 2 is provided with a hinge hook 33 for being fitted to the hinge shaft 31 and correspondingly fitting the hinge shaft 31 and rotating around the hinge shaft 31. In this example, the opening direction of the hinge hook 33 is different from the opening direction of the second ring 2, thereby reducing the central angle angle corresponding to the hook body to the minimum (in this example, the hook body hinge angle is 180 degrees), achieving the most stable hinge effect with the least amount of material.

[0026] Specifically, in this embodiment, the gap width between the hinge shaft 31 and the first ring body 1 matches the hook body thickness of the hinge hook 33. This ensures that after the hinge shaft 31 is attached to the outside of the hinge shaft 31, the outer surface of the hinge hook 32 is tangent to the outer surface of the first ring body 1. This not only reduces the amount of material injected into the hinge seat (because the gap width between the hinge shaft and the first ring body is limited), but also provides a certain supporting force when the hinge is subjected to external force through the tangency between the first ring body and the hinge shaft. Simultaneously, it minimizes the spatial volume of the pressure ring, reducing the impact of the hinge's space occupation on the surrounding environment. Furthermore, in this embodiment, the width of the hinge hook 33 matches the distance between the two hinge seats 32. Therefore, the two end faces of the hinge hook 33 are tangent to the inner end faces of the two hinge seats 32, effectively preventing the first ring body 1 and the second ring body 2 from wobbling along the axial direction of the hinge shaft 31 after assembly. In addition, in this example, the inner edge diameter of the hinge hook 33 is matched with the outer edge diameter of the hinge shaft 31, thereby ensuring the hinge assembly accuracy between the two and avoiding the problem of relative wobbling between the two rings due to a small gap between the hinge shaft 31 and the hinge hook 33 after hinge assembly.

[0027] In this embodiment, the hinge hook 33 and the hinge shaft 31 are specifically fixed to the outer sides of the corresponding ends of the first ring body 1 and the second ring body 2. The hinge hook 33 specifically includes a hook tail 331, a hook body 332, and a hook head 333. The hook tail 331 is used to achieve a fixed connection between the hinge hook 33 and the end of the second ring body 2. The hook body 332 has a semi-circular structure, and the diameter of its inner edge surface matches the diameter of the outer edge surface of the hinge shaft 31. In addition, in this embodiment, the planes of the end faces of the hook body 332 that are used to connect the hook tail and the hook head are coplanar with the end face of the second ring body 2 that is used to contact the first ring body 1. This ensures that the hook body can fit snugly against the outside of the hinge shaft 31 while also ensuring a tight fit between the first ring body 1 and the second ring body 2. Since the gap between the hinge shaft 31 and the first ring body 1 and the gap between the hinge hook 33 and the thickness of the hinge hook 33 are matched in this example, in order to facilitate the smooth insertion of the hinge hook 33 into the gap between the hinge shaft 31 and the first ring body 1 during assembly, a hook head 333 is provided at the other end of the hook body 332 in this example. The cross-section of the hook head 333 is an enlarged section along the direction close to the hook body 332, thereby playing a guiding role in assembly insertion. At the same time, it can also increase the hinge opening angle between the first ring body 1 and the second ring body 2 to a certain extent, further facilitating the sleeve installation outside the pipe body or fitting during use.

[0028] See Figure 2 and Figure 3One end of the first ring 1 and the second ring 2 are hinged together by a hinge shaft 31 and a hinge hook 33. To achieve relative fixation of the other ends of the first ring 1 and the second ring 2, thus ensuring a stable and reliable clamping ring around the pipe or fitting, in this embodiment, a fixing seat 4 is also fixedly provided at the other ends of the first ring 1 and the second ring 2. Specifically, the fixing seats at the first ring and the second ring are arranged parallel to each other, and each fixing seat is provided with a bolt through hole for passing a fastening bolt. The two rings are then fastened together by bolts. Considering that conventional clamps require the fastening bolt to be engaged with a corresponding nut during tightening, and that tightening the nut or bolt while fixing the bolt or nut requires two hands or multiple people using various tools, the installation is complex. Therefore, in this embodiment, one of the fixing seats has a countersunk hole on its outer side that is concentric with the bolt through hole. The outline of the countersunk hole matches the outer edge outline of the bolt head or nut of the fastening bolt. Thus, during installation, the bolt head or nut of the fastening bolt is correspondingly recessed into the countersunk hole, and the rotation of the fastening bolt or nut is restricted by the countersunk hole. Therefore, fastening can be achieved simply by rotating the fastening bolt or nut accordingly, which is convenient to operate.

[0029] Furthermore, to reduce the weight of the assembled pressure ring, in this embodiment, grooves of a certain depth are respectively formed on the inner sides of the two fixing seats. This reduces the amount of molding required for the fixing seats, thereby reducing the weight of the pressure ring. Additionally, to strengthen the connection between the fixing seats and the corresponding ring bodies, reinforcing ribs are provided between the fixing seats and the first or second ring body, and also between the hinge seat and the first ring body, ensuring the reliability of the connection.

[0030] Traditional clamps are typically used for connecting pipes of equal diameter. For pipes and threaded fittings, spiral caps are often used for connection. However, the inventors found through long-term practice that spiral caps are difficult to replace after damage during use, requiring the entire pipe section to be dismantled for replacement, resulting in high maintenance and repair costs. Therefore, in this embodiment, see... Figure 1 A first shoulder 51 and a second shoulder 52 are respectively provided on both sides of the first and second rings along their edge contours for corresponding fastening to the outside of the pipe or the threaded step of the pipe fitting. Specifically, in this embodiment, considering that the pipe is usually inserted into the pipe fitting for connection, the width of the first shoulder 51 is greater than the width of the second shoulder 52, so that the inner edge diameter of the first shoulder 51 matches the outer edge diameter of the pipe to be connected, and the inner edge diameter of the second shoulder 52 matches the outer edge diameter of the threaded step of the pipe fitting to be connected.

[0031] Furthermore, traditional pipe clamps require slotting at the ends of the pipes to secure them, but this reduces the structural strength of the pipe ends and necessitates the use of specialized slotting machines, making the process complex and inefficient. Therefore, in this embodiment, see... Figure 4 The assembled pressure ring also includes a locking ring 6 and a sealing ring for use with it. The width of the locking ring 6 and the sealing ring is smaller than the width between the first shoulder 51 and the second shoulder 52, thereby ensuring that the locking ring 6 and the sealing ring can be placed between the two shoulders. The inner diameter of the locking ring matches the outer diameter of the pipe to be connected, and the inner edge of the locking ring is provided with several raised lines 61. By tightening the pressure ring, the locking ring is pressed into close contact with the pipe, achieving clamping and locking, and preventing the pipe from moving axially relative to the fitting after connection. In use, first, the locking ring 6 and the sealing ring are put on the outside of the pipe to be connected. Then, the two rings are hinged and assembled and wrapped around the connection between the pipe and the fitting, so that the locking ring and the sealing ring are located between the first shoulder and the second shoulder. At the same time, it is ensured that the threaded step of the second shoulder and the fitting are in corresponding limiting contact. Finally, the fastening bolt is tightened, which can achieve convenient and efficient connection between the pipe and the fitting.

[0032] The modular structure greatly increases the flexibility of the pressure ring. If one ring is damaged, only the ring on that side needs to be replaced. Assembly is simple and convenient, and the connection reliability is excellent.

[0033] Although some preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this utility model.

[0034] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of the invention. Therefore, if these modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.

Claims

1. An assembled pressure ring, characterized in that, It includes a first ring body and a second ring body with a semi-circular structure and a fixed seat at one end; the other end of the first ring body is fixedly provided with a hinge shaft parallel to the axial direction of the first ring body, and the other end of the second ring body is fixedly provided with a hinge hook for being fitted into the hinge shaft and for rotating around the hinge shaft; the first ring body and the second ring body are respectively provided with a first shoulder and a second shoulder along their edge contours on both sides for correspondingly fixing to the outside of the pipe or the threaded step of the pipe fitting.

2. The assembled pressure ring according to claim 1, characterized in that, It also includes a sealing ring and a locking ring disposed within the first ring body and the second ring body and correspondingly located between the first shoulder and the second shoulder.

3. The assembled pressure ring according to claim 2, characterized in that, The inner diameter of the locking ring matches the diameter of the pipe to be connected, and the inner edge of the locking ring is provided with a number of raised lines.

4. The assembled pressure ring according to claim 1, characterized in that, The fixing seat of the first ring body is parallel to the fixing seat of the second ring body, and the fixing seat is provided with a bolt through hole for passing through the fastening bolt; the fixing seat of the first ring body or the fixing seat of the second ring body is provided with a countersunk hole on the outside that matches the outer edge contour of the fastening bolt and is used to limit the rotation of the fastening bolt.

5. The assembled pressure ring according to claim 1, characterized in that, The hinge shaft has hinge seats at both ends that are fixedly connected to the first ring body; the gap width between the hinge shaft and the first ring body matches the thickness of the hinge hook; the width of the hinge hook matches the distance between the two hinge seats.

6. The assembled pressure ring according to claim 1, characterized in that, The hinged hook includes a hook tail for fixed connection with the second ring body, a hook body with one end connected to the hook tail for rotatable fit to the outside of the hinge shaft and having a semi-circular structure, and a hook head located on the other end of the hook body and having an enlarged diameter section along the direction close to the hook body; the two end faces of the hook body for connecting the hook tail and the hook head are coplanar with the two end faces of the second ring body.

7. The assembled pressure ring according to claim 1, characterized in that, A reinforcing rib is provided between the fixing seat and the first ring or the second ring.

8. The assembled pressure ring according to claim 1, characterized in that, The inner side of the fixing seat is provided with a sink groove for reducing the injection volume.

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