A pipe coupling device

Abstract

The utility model relates to a kind of round pipe connecting devices, it includes two sleeve pipes, each sleeve pipe has two opposite ends, one end is embedded in the end of corresponding round pipe;Two groups of transition connecting plate components, one end of the transition connecting plate component is embedded in the other end of the sleeve pipe;Each group of the transition connecting plate component includes two mutually engaged first connecting plate and second connecting plate;Two end plates, two end plates are fixedly connected, and the end face is respectively abutted the end face of the transition connecting plate component;Closure plate, the closure plate is enclosed in the outside of the transition connecting plate component, end plate, and with the sleeve pipe detachable fixed connection.The utility model has the effect of high strength, high safety, convenient assembly and disassembly and appearance flat.

Description

Technical Field

[0001] This utility model relates to the field of amusement facility technology, and in particular to a circular tube connection device. Background Technology

[0002] In the design and construction of amusement facilities, such as large climbing frames, slide support structures, and themed landscape frames, circular tubes are widely used as the main load-bearing and structural elements. These facilities place extremely high demands on the safety, reliability, and ease of construction and subsequent maintenance of the connection nodes.

[0003] Currently, such round pipe connections mainly rely on on-site welding or prefabricated flange connections. While on-site welding provides a strong connection, it presents safety hazards such as the construction quality being greatly affected by the operator's skill, the inability to disassemble making the facility difficult to relocate or modify, and the weld heat-affected zone potentially becoming a source of fatigue cracks. Prefabricated flange connections, although detachable, typically have bulky connection nodes, require a large number of bolts leading to time-consuming and labor-intensive installation, and the protruding flanges may affect the overall aesthetics of the facility, even posing a snagging risk in children's play areas. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a round tube connection device with high strength, high safety, convenient assembly and disassembly and a flat appearance.

[0005] The above-mentioned utility model objective is achieved through the following technical solution:

[0006] A circular tube connection device includes: two sleeves, each sleeve having opposite ends, one end of which is embedded in the end of the corresponding circular tube;

[0007] Two sets of transition connecting plate assemblies, one end of which is embedded in the other end of the sleeve; each set of transition connecting plate assemblies includes two interlocking first connecting plates and second connecting plates.

[0008] Two end plates are fixedly connected, and their end faces respectively abut against the end face of the transition connecting plate assembly;

[0009] Two sealing plates surround the transition connecting plate assembly and the end plate on the outside, and are detachably and fixedly connected to the sleeve.

[0010] The above technical solution provides a complete circular tube connection device. Through the coordinated combination of sleeve, transition connection plate assembly, end plate and sealing plate, it realizes a stable and detachable connection between two circular tubes. It can not only bear the dynamic load generated during the use of amusement facilities, but also facilitates rapid on-site construction and subsequent safety inspection and maintenance. It effectively transmits loads while conforming to the usage characteristics of amusement facilities.

[0011] As a further technical solution of this utility model: a first engaging groove is provided at one end of the first connecting plate, and a second engaging groove adapted to the first engaging groove is provided at the corresponding position of the second connecting plate; the first connecting plate and the second connecting plate are interlocked with each other through the first engaging groove and the second engaging groove.

[0012] Through the above technical solution, the interlocking of the first and second locking slots achieves a precise and stable locking connection between the first and second connecting plates, ensuring the integrity and force transmission reliability of the transition connecting plate assembly.

[0013] As a further technical solution of this utility model: the end of the first engaging groove facing the second engaging groove is an arc-shaped notch.

[0014] By using the above technical solution, one end of the first engagement groove is set as an arc-shaped notch, which can provide a smooth guide for the initial stage of the first connecting plate and the second connecting plate interlocking, effectively avoiding interference and jamming at right-angled edges, and significantly improving the smoothness and efficiency of assembly.

[0015] As a further technical solution of this utility model: both ends of the first connecting plate and the second connecting plate are provided with protrusions, and the inner wall of the sleeve is provided with a receiving groove that matches the protrusions at the corresponding positions.

[0016] By utilizing the above technical solution, the protrusions on the side wall of the connecting plate and the receiving groove on the inner wall of the sleeve are matched to achieve rapid, accurate positioning and reliable embedding between the transition connecting plate assembly and the sleeve, preventing relative rotation or dislodgement.

[0017] As a further technical solution of this utility model: multiple through holes are respectively opened at corresponding positions of the two end plates; after bolts are passed through the corresponding through holes of the two end plates in sequence, they are locked by nuts to realize the fixed connection of the two end plates.

[0018] The above technical solution uses bolts and nuts to lock the two end plates together, providing a strong and adjustable fastening force, ensuring the firmness of the connection between the end plates, thereby significantly improving the structural rigidity of the entire connection device, enabling it to stably bear various loads from amusement facilities, and providing core protection for facility safety.

[0019] As a further technical solution of this utility model: a first mounting hole is provided on the side wall of the sleeve away from the round tube, and a second mounting hole adapted to the first mounting hole is provided on the corresponding side wall of the sealing plate. The sealing plate and the sleeve are detachably fixedly connected by screws passing through the second mounting hole and the first mounting hole.

[0020] The above technical solution utilizes screws through the mounting holes of the enclosure plate and the sleeve to achieve a detachable connection. This allows the enclosure plate to effectively cover exposed parts such as bolts and locking structures while enclosing and protecting internal components and preventing dust and rain erosion. It also prevents clothing from getting caught. Furthermore, its flat and simple appearance meets the aesthetic requirements of amusement facilities, and its easy disassembly facilitates safety inspections and maintenance of the internal structure in the future.

[0021] In summary, this utility model has at least one of the following beneficial technical effects:

[0022] 1. This utility model discloses a circular pipe connection device, which adopts a modular connection structure consisting of a sleeve, a transition connection plate assembly, an end plate and a sealing plate to achieve a stable and detachable connection between two circular pipes. While ensuring the ability to bear the dynamic load of amusement facilities, it greatly improves the assembly efficiency and convenience of later maintenance of amusement facilities, and is suitable for the dual needs of site construction and safety inspection.

[0023] 2. This utility model discloses a circular tube connection device, which has interlocking grooves on the first and second connecting plates, and the end of the first interlocking groove has an arc-shaped notch, realizing precise positioning and tight interlocking between the connecting plates, ensuring the effective transmission of load in the transition structure, improving the integrity and reliability of the connection node, and being able to stably bear the complex load brought by amusement facilities, while reducing safety hazards during assembly and use.

[0024] 3. This utility model discloses a circular tube connection device, which realizes detachable connection between end plates and between the sealing plate and the sleeve through standardized fasteners such as bolts and screws. While forming a reliable external enclosure to protect internal components and avoid usage risks, it provides a structural basis for the rapid disassembly and internal maintenance of the device, and meets the operation and maintenance needs of regular safety inspections of amusement facilities. Attached Figure Description

[0025] Figure 1 This is an exploded view of an embodiment of a circular tube connection device according to the present invention.

[0026] Figure 2 This is a schematic diagram of the overall structure of a circular tube connection device according to Embodiment 1 of the present invention.

[0027] Figure 3 This is a front view of a first embodiment of the circular tube connecting device of this utility model.

[0028] Figure 4 This is a side view of one embodiment of a circular tube connecting device according to the present invention.

[0029] Figure 5 for Figure 1 A schematic diagram of the structure of the first connecting plate and the second connecting plate.

[0030] Figure 6 for Figure 5 A schematic diagram of the combined structure of the first connecting plate and the second connecting plate.

[0031] Reference numerals: 1. Sleeve; 102. First mounting hole; 2. Transition connecting plate assembly; 201. Protrusion; 21. First connecting plate; 211. First engaging groove; 212. Arc-shaped notch; 22. Second connecting plate; 221. Second engaging groove; 3. End plate; 301. Through hole; 4. Sealing plate; 401. Second mounting hole; 5. Bolt; 6. Nut; 7. Screw; 8. Round tube. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] Example 1:

[0036] Reference Figures 1 to 4 This utility model discloses a circular tube connection device, comprising two sleeves 1, each sleeve 1 having opposite ends, and the sleeves 1 being made of high-strength aluminum alloy with smooth inner walls to reduce assembly friction. One end of each sleeve 1 is tightly embedded in the end of a circular tube 8. The tight fit between the sleeve 1 and the circular tube 8 provides a stable and reliable installation foundation for subsequent connecting components, while ensuring the initial connection strength between the circular tube 8 and the device body, preventing loosening gaps after assembly.

[0037] Reference Figure 3 The device is equipped with two sets of transition connecting plate assemblies 2. One end of each set of transition connecting plate assembly 2 is precisely embedded in the other end of the sleeve 1, and the outer walls of the two remain flush after embedding. (Refer to...) Figure 5 and Figure 6 Each set of transition connecting plate assembly 2 includes two interlocking first connecting plates 21 and second connecting plates 22. Both the first connecting plate 21 and the second connecting plate 22 are rectangular plates. One end of the first connecting plate 21 is provided with a first engaging groove 211, and the corresponding position of the second connecting plate 22 is provided with a second engaging groove 221 that matches the first engaging groove 211. The two are precisely inserted into each other in a perpendicular manner through the first engaging groove 211 and the second engaging groove 221 to form a stable integrated combination structure. After insertion, the flatness of the plate surface is controlled within a very small error range. The first engagement groove 211 has an arc-shaped notch 212 at one end facing the second engagement groove 221, which can reduce the risk of interference during the vertical insertion process. At the same time, both ends of the first connecting plate 21 and the second connecting plate 22 have integrally formed protrusions 201. The inner wall of the sleeve 1 has a corresponding receiving groove that precisely matches the protrusion 201. The precise engagement of the protrusion 201 and the receiving groove realizes the high-precision positioning of the transition connecting plate assembly 2 and the sleeve 1, forming a double cooperation to prevent disengagement and rotation, ensuring that the transition connecting plate assembly 2 does not shift when subjected to force.

[0038] Reference Figure 1 The device is also equipped with two end plates 3, which are made of steel plates with sufficient load-bearing strength. (Refer to...) Figure 3 Multiple coaxial through holes 301 are provided at corresponding positions of the two end plates 3. The diameter of the through holes 301 matches the nominal diameter of the bolts 5. The bolts 5 and nuts 6 cooperate to pass through the through holes 301 to form a firm connection between the two end plates 3, ensuring that the end plates 3 have a stable load transmission capability.

[0039] Reference Figure 3 The end faces of the two end plates 3 are tightly abutted against the end faces of the two sets of transition connecting plate assemblies 2. A small amount of anti-slip and wear-resistant coating is applied to the abutting surface, which can efficiently transfer and evenly integrate the force of the two sets of transition connecting plate assemblies 2, and avoid local stress concentration.

[0040] Reference Figure 1 The device is equipped with two sealing plates 4, which are U-shaped. The inner wall of the sealing plate 4 fits tightly against the outer wall of the transition connecting plate assembly 2 and the end plate 3, tightly enclosing the outer sides of the transition connecting plate assembly 2 and the end plate 3. A first mounting hole 102 is provided on the side wall of the sleeve 1 away from the round tube 8. A second mounting hole 401, precisely matching the first mounting hole 102, is provided on the corresponding side wall of the sealing plate 4. Screws 7 pass through the second mounting hole 401 and the first mounting hole 102, forming a convenient and detachable fixed connection between the sealing plate 4 and the sleeve 1. (Refer to...) Figure 4 The enclosed plate 4 provides comprehensive protection for the internal connecting components, preventing dust and rainwater from entering, while ensuring that the connecting nodes have a smooth and flat appearance, perfectly meeting the dual requirements of amusement facilities for safety and cleanliness.

[0041] The assembly and use process of the circular tube connecting device of this utility model is as follows: First, two sleeves 1 are respectively embedded and fixed to the ends of two circular tubes 8 that need to be connected. Then, the transition connection structure is assembled. The first connecting plate 21 and the second connecting plate 22 are aligned and inserted into each other through the first engaging groove 211 and the second engaging groove 221 at their ends. During this process, the arc-shaped notch 212 at the end of the first engaging groove 211 provides guidance, making the insertion operation smooth, thereby forming a complete set of transition connection plate assembly 2. Next, the end of the assembled transition connection plate assembly 2 with the protrusion 201 is inserted into the interior of the corresponding sleeve 1, and the protrusion 201 is accurately placed into the receiving groove on the inner wall of the sleeve 1, realizing the positioning and fixing of the transition connection plate assembly 2 in the sleeve 1. Then, the end faces of the two end plates 3 are respectively pressed against the outer end faces of the two sets of transition connection plate assemblies 2, and the position is adjusted so that the through holes 301 on the end plates 3 are aligned. Then, the bolts 5 are inserted and the nuts 6 are tightened, thereby tightening and fixing the two sides of the structure into one. Finally, place the sealing plate 4 around the assembled internal components, aligning its second mounting hole 401 with the first mounting hole 102 on the sleeve 1, and tighten it with screws 7 to complete the assembly of the entire connecting device, thus achieving a stable connection between the two round tubes 8. When maintenance is required, disassembly can be performed in the reverse order of assembly: first, unscrew screws 7 to remove the sealing plate 4, then loosen nuts 6 to remove bolts 5 to separate the two end plates 3, and then the transition connecting plate assembly 2 can be pulled out of the sleeve 1 for inspection or maintenance.

[0042] The implementation principle of this utility model is based on modular assembly and mechanical interlocking. The sleeve 1, as the direct interface with the round tube 8, provides the basic installation reference. The transition connecting plate assembly 2 interlocks with the first engaging groove 211 of the first connecting plate 21 and the second engaging groove 221 of the second connecting plate 22, transforming two independent components into a single integral component capable of transmitting complex dynamic loads in amusement facilities, achieving force dispersion and effective transmission; the arc-shaped notch 212 acts as a guide, reducing assembly precision requirements and improving the smoothness and efficiency of interlocking. The cooperation between the protrusion 201 and the receiving groove enables rapid and precise radial and circumferential positioning of the transition connecting plate assembly 2 within the sleeve 1, preventing rotation or loosening during use. The end plate 3 is connected by bolts 5 and nuts 6, utilizing the enormous axial preload of the threaded pair to clamp and connect the two transition connecting plate assemblies 2, a core fastening element ensuring the rigidity and safety of the connection node under high-frequency use. The outer sealing plate 4 is fixed by screws 7 to form a protective shell, covering the internal components to resist outdoor corrosion and accidental collisions, and its detachable design facilitates regular safety inspections and maintenance. In summary, through the hierarchical combination and synergy of its components, this device achieves the core functions of high strength, convenient assembly and disassembly, and easy maintenance of the circular pipe connection points in amusement park scenarios.

[0043] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A circular pipe connecting device, characterized in that, include: Two sleeves (1), each sleeve (1) having opposite ends, one end of which is embedded in the end of the corresponding round tube (8); Two sets of transition connecting plate assemblies (2), one end of which is embedded in the other end of the sleeve (1); each set of the transition connecting plate assembly (2) includes two first connecting plates (21) and second connecting plates (22) that are interlocked with each other; Two end plates (3) are fixedly connected, and their end faces respectively abut against the end face of the transition connecting plate assembly (2); Two sealing plates (4) surround the outside of the transition connecting plate assembly (2) and the end plate (3) and are detachably fixedly connected to the sleeve (1).

2. The circular tube connecting device according to claim 1, characterized in that, The first connecting plate (21) has a first engaging groove (211) at one end, and the second connecting plate (22) has a second engaging groove (221) at the corresponding position that is adapted to the first engaging groove (211); the first connecting plate (21) and the second connecting plate (22) are interlocked with each other through the first engaging groove (211) and the second engaging groove (221).

3. A circular tube connecting device according to claim 2, characterized in that, The end of the first engaging groove (211) facing the second engaging groove (221) is an arc-shaped notch (212).

4. The circular tube connecting device according to claim 1, characterized in that, Both ends of the first connecting plate (21) and the second connecting plate (22) are provided with protrusions (201), and the inner wall of the sleeve (1) is provided with a receiving groove that matches the protrusions (201) at the corresponding position.

5. A circular tube connecting device according to claim 1, characterized in that, Multiple through holes (301) are provided at corresponding positions on the two end plates (3); after the bolts (5) pass through the corresponding through holes (301) of the two end plates (3) in sequence, they are locked by nuts (6) to realize the fixed connection of the two end plates (3).

6. A circular tube connecting device according to claim 1, characterized in that, The sleeve (1) has a first mounting hole (102) on the side wall away from the round tube (8), and the sealing plate (4) has a second mounting hole (401) on the corresponding side wall that matches the first mounting hole (102). The sealing plate (4) and the sleeve (1) are detachably fixedly connected by a screw (7) passing through the second mounting hole (401) and the first mounting hole (102).

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