Pipe fitting splicing structure

Abstract

The utility model provides a kind of pipe fitting splicing structure, belong to the technical field of pipe fitting connecting structure, including conveying mechanism, including pipe body, and the flange of fixed installation in the pipe body outside;Dynamic compensation mechanism, including with the connecting disc of the fixed connection of the flange, fixed installation in the connecting disc outside positioning disc, setting in the positioning disc outside adjusting assembly, and setting in the adjusting assembly outside compensation fixed component.The utility model is by three groups annular compensation fixed component of dynamic compensation mechanism's elastic support net, effectively decomposes axial stress, adjusting assembly's guide rail sliding block mechanism allows pipe body to be free to stretch along axial direction;Flexible buffer unit of support spring and movable block composition can self-adaptingly absorb thermal expansion and cold shrink displacement, manual positioning component provides initial pre-tightening force adjusting function, ensure the sealing surface degree of fit under different temperature conditions, solve the problem of traditional rigid connection and pipe body slip caused by glue layer cracking.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipe fitting connection structures, specifically relating to a pipe fitting splicing structure. Background Technology

[0002] Pipe splicing structures are a widely used connection technology system in industrial manufacturing, building installation, and fluid transportation systems. Its core consists of standardized pipes and matching connectors, achieving modular assembly for multi-directional branching, turning, or extension through mechanical fastening, welding, or bonding. It is commonly found in oil pipelines, water supply and drainage systems, chemical equipment, and steel structure frames.

[0003] Currently, pipe fittings have a high coefficient of linear expansion when exposed to temperature changes. When they expand when heated or contract when cooled, rigid connections will generate axial stress at the joints. Over time, this can lead to cracking of the adhesive layer or slippage of the pipe from the socket. In particular, in scenarios with large temperature differences, such as solar water heaters and underfloor heating, traditional union structures are prone to sealing failure after repeated thermal cycles due to the lack of expansion and contraction compensation. Utility Model Content

[0004] The purpose of this utility model is to provide a pipe splicing structure, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A pipe fitting splicing structure, comprising, The conveying mechanism includes a pipe body and a flange fixedly installed on the outside of the pipe body; The dynamic compensation mechanism includes a connecting plate fixedly connected to the flange, a positioning plate fixedly installed on the outside of the connecting plate, an adjustment component disposed on the outside of the positioning plate, and a compensation fixing component disposed on the outside of the adjustment component. The compensation fixing components are arranged in a ring and there are three sets of them.

[0006] As a preferred embodiment of this utility model, the dynamic compensation mechanism further includes a manual positioning component disposed on the outside of the compensation fixing component, and a double-layer sealing ring fixedly installed at the junction of the connecting plate and the positioning plate.

[0007] As a preferred embodiment of this utility model, the adjustment assembly includes a guide rail fixedly installed on the outside of the positioning plate, an adjustment channel formed on the outside of the guide rail, and a slider movably engaged in the inner cavity of the adjustment channel.

[0008] As a preferred embodiment of the present invention, the adjusting assembly further includes a limiting sleeve fixedly installed on the outside of the slider, and a fastening bolt threaded on the outside of the limiting sleeve.

[0009] As a preferred embodiment of this utility model, the compensation fixing assembly includes a vertical rod fixedly installed on the outside of the limiting slide sleeve, a slide groove opened on the outside of the vertical rod, a movable block movably locked in the inner cavity of the slide groove, a gripping rod fixedly installed on one side of the movable block, a support spring fixedly installed on the other side of the movable block, a connecting piece fixedly installed on the end of the support spring, and a support plate fixedly installed on the outside of the connecting piece.

[0010] As a preferred embodiment of this utility model, the manual positioning assembly includes a first screw fixedly installed on the outside of the vertical rod, a second screw fixedly installed on the outside of the support plate, and an adjustment knob sleeved on the outside of the first screw and the second screw.

[0011] As a preferred embodiment of this utility model, the conveying mechanism further includes a connecting pipe head fixedly installed on the outside of the flange, and a handwheel hinged to the outside of the pipe body.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the three sets of annular compensation fixing components of the dynamic compensation mechanism form an elastic support network, which effectively decomposes axial stress; the guide rail slider mechanism of the adjustment component allows the tube to freely expand and contract along the axial direction; the flexible buffer unit composed of the support spring and the movable block can adaptively absorb thermal expansion and contraction displacement; the manual positioning component provides an initial pre-tightening force adjustment function to ensure the sealing surface fit under different temperature conditions, thus solving the problems of adhesive layer cracking and tube slippage caused by traditional rigid connections. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the dynamic compensation mechanism structure of this utility model; Figure 3 This is a schematic diagram of the compensation fixing component and the manual positioning component of this utility model; Figure 4 This is a partial schematic diagram of the adjustment component structure of this utility model.

[0014] In the picture: 100. Conveying mechanism; 110. Pipe body; 120. Flange; 130. Connecting pipe end; 140. Handwheel; 200. Dynamic compensation mechanism; 210. Connecting plate; 220. Positioning plate; 230. Adjustment component; 231. Guide rail; 232. Adjustment channel; 233. Slider; 234. Limiting sleeve; 235. Fastening bolt; 240. Compensation fixing component; 241. Vertical rod; 242. Slide groove; 243. Movable block; 244. Handle; 245. Support spring; 246. Connecting piece; 247. Support plate; 250. Manual positioning component; 251. First screw; 252. Second screw; 253. Adjustment knob; 260. Double-layer sealing ring. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0018] Reference Figures 1-4 This is an embodiment of the present invention, which provides a pipe fitting splicing structure, including, The conveying mechanism 100 includes a pipe body 110 and a flange 120 fixedly installed on the outside of the pipe body 110; The dynamic compensation mechanism 200 includes a connecting plate 210 fixedly connected to the flange 120, a positioning plate 220 fixedly installed on the outside of the connecting plate 210, an adjustment component 230 disposed on the outside of the positioning plate 220, and a compensation fixing component 240 disposed on the outside of the adjustment component 230. The compensation fixing components 240 are arranged in a ring and there are three sets.

[0019] The combination of the conveying mechanism 100 and the dynamic compensation mechanism 200 achieves stable conveying and dynamic compensation functions during pipeline connection. It provides rigid support for the pipe body 110 and flange 120 of the conveying mechanism 100, ensuring the stability of medium conveying. The dynamic compensation mechanism 200, through the cooperation of the connecting plate 210, the positioning plate 220 and the adjusting component 230, can absorb the displacement of the pipeline caused by temperature changes or mechanical vibration, and avoid sealing failure caused by stress concentration. The three sets of annularly distributed compensation fixing components 240 further enhance the balance and reliability of the structure, making it suitable for high-pressure or large temperature difference conditions.

[0020] Specifically, the dynamic compensation mechanism 200 also includes a manual positioning component 250 disposed on the outside of the compensation fixing component 240, and a double-layer sealing ring 260 fixedly installed at the junction of the connecting plate 210 and the positioning plate 220.

[0021] The manual positioning component 250 allows users to quickly adjust the initial position of the dynamic compensation fixing component 240, simplifying the installation process. The double-layer sealing ring 260 forms a redundant sealing barrier at the junction of the connecting plate 210 and the positioning plate 220, which can maintain the system's sealing performance even if a single-layer seal fails, making it suitable for corrosive media or long-term service environments.

[0022] Furthermore, the adjustment assembly 230 includes a guide rail 231 fixedly installed on the outside of the positioning plate 220, an adjustment channel 232 opened on the outside of the guide rail 231, and a slider 233 movably locked in the inner cavity of the adjustment channel 232. The adjustment assembly 230 also includes a limiting sleeve 234 fixedly installed on the outside of the slider 233, and a fastening bolt 235 threaded on the outside of the limiting sleeve 234.

[0023] The adjustment component 230 employs a sliding fit design of guide rail 231, adjustment channel 232, and slider 233, achieving precise linear adjustment of the compensation mechanism. Guide rail 231 provides rigid guidance for slider 233, ensuring no deflection during displacement compensation. The opening range of adjustment channel 232 limits the compensation stroke, preventing excessive stretching or compression that could damage the structure. While ensuring adjustment flexibility, it effectively suppresses the transmission of mechanical vibration. The addition of limiting sleeve 234 and fastening bolt 235 gives the adjustment component 230 a lockable function. Slider 233 achieves secondary positioning through limiting sleeve 234 to prevent accidental slippage. Fastening bolt 235 can be manually tightened to fix the position of slider 233, ensuring structural stability after compensation. This design is suitable for applications requiring frequent adjustment of the compensation fixing component 240, balancing ease of operation and structural reliability.

[0024] Preferably, the compensation fixing assembly 240 includes a vertical rod 241 fixedly installed on the outside of the limiting slide sleeve 234, a slide groove 242 opened on the outside of the vertical rod 241, a movable block 243 movably locked in the inner cavity of the slide groove 242, a gripping rod 244 fixedly installed on one side of the movable block 243, a support spring 245 fixedly installed on the other side of the movable block 243, a connecting piece 246 fixedly installed on the end of the support spring 245, and a support plate 247 fixedly installed on the outside of the connecting piece 246.

[0025] The compensation fixing component 240 achieves multi-directional flexible support through the linkage mechanism of the vertical rod 241, the slide groove 242 and the movable block 243. The support spring 245 transmits elastic force through the connecting piece 246 and the support plate 247, which can adaptively compensate for the axial and radial displacement of the pipeline. The handle 244 facilitates manual adjustment of the position of the movable block 243, simplifying maintenance operations.

[0026] Furthermore, the manual positioning assembly 250 includes a first screw 251 fixedly installed on the outside of the vertical rod 241, a second screw 252 fixedly installed on the outside of the support plate 247, and an adjustment knob 253 sleeved on the outside of the first screw 251 and the second screw 252.

[0027] The manual positioning component 250 adopts a threaded linkage design of the first screw 251, the second screw 252 and the adjustment knob 253, which realizes the fine adjustment and locking of the compensation amount. Rotating the adjustment knob 253 can simultaneously control the relative displacement of the two sets of screws, accurately adjust the compensation angle of the support plate 247, and the thread self-locking characteristic ensures that there is no loosening after positioning.

[0028] Furthermore, the conveying mechanism 100 also includes a connecting pipe head 130 fixedly installed on the outside of the flange 120, and a handwheel 140 hinged to the outside of the pipe body 110.

[0029] The conveying mechanism 100 expands its functionality by adding a connecting pipe head 130 and a handwheel 140. The connecting pipe head 130 provides a standardized interface for quick connection to other pipeline equipment, and the handwheel 140 allows manual control of the rotation angle of the pipe body 110, enabling adjustment of the pipeline posture during installation or maintenance.

[0030] In use, the basic pipeline connection is first established through the pipe body 110 and flange 120 of the conveying mechanism 100. The connecting pipe head 130 enables quick docking with other pipelines. During pipeline operation, when thermal expansion and contraction or mechanical vibration occurs, the multi-stage adjustment system of the dynamic compensation mechanism 200 works in coordination. The connecting plate 210 and the positioning plate 220 form a basic support surface. The adjustment component 230 guides the slider 233 to slide along the adjustment channel 232 through the guide rail 231 to achieve primary displacement compensation. The limiting sleeve 234 and the fastening bolt 235 provide position locking function. The support spring 245 of the compensation fixing component 240 pushes the support plate 247 to produce elastic deformation through the connecting piece 246 to achieve secondary flexible compensation. At the same time, the compensation amount can be precisely controlled by the adjustment knob 253 of the manual positioning component 250. The double-layer sealing ring 260 ensures the sealing reliability during each compensation action, and finally achieves dynamic and stable connection of the pipeline.

[0031] In summary, the pipe body 110 and flange 120 of the conveying mechanism 100 form a stable medium conveying channel. With the help of the rotatable handwheel 140 and the standardized connecting pipe head 130, both structural strength and installation convenience are ensured. The dynamic compensation mechanism 200 adopts a three-layer adjustment design, consisting of a basic sealing layer composed of a connecting plate 210 and a double-layer sealing ring 260, a precision guiding layer composed of a guide rail 231 and a slider 233, and an elastic support layer formed by three sets of annularly distributed compensation fixing components 240. Through the threaded fine adjustment of the manual positioning component 250 and the automatic adaptation of the support spring 245, it can simultaneously absorb axial displacement, radial deflection and vibration energy. Under the premise of maintaining the pipeline sealing, it realizes displacement compensation. It is suitable for harsh working conditions such as geothermal pipelines and chemical fluid transportation where there is thermal deformation and mechanical vibration.

[0032] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0033] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0034] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pipe fitting splicing structure, characterized in that: include, The conveying mechanism (100) includes a pipe body (110) and a flange (120) fixedly installed on the outside of the pipe body (110). The dynamic compensation mechanism (200) includes a connecting plate (210) fixedly connected to the flange (120), a positioning plate (220) fixedly installed on the outside of the connecting plate (210), an adjustment component (230) disposed on the outside of the positioning plate (220), and a compensation fixing component (240) disposed on the outside of the adjustment component (230). The compensation fixing components (240) are arranged in a ring and there are three sets.

2. The pipe fitting splicing structure according to claim 1, characterized in that: The dynamic compensation mechanism (200) also includes a manual positioning component (250) disposed on the outside of the compensation fixing component (240), and a double-layer sealing ring (260) fixedly installed at the junction of the connecting plate (210) and the positioning plate (220).

3. The pipe fitting splicing structure according to claim 2, characterized in that: The adjustment assembly (230) includes a guide rail (231) fixedly installed on the outside of the positioning disk (220), an adjustment channel (232) opened on the outside of the guide rail (231), and a slider (233) movably engaged in the inner cavity of the adjustment channel (232).

4. The pipe fitting splicing structure according to claim 3, characterized in that: The adjustment assembly (230) also includes a limiting sleeve (234) fixedly installed on the outside of the slider (233), and a fastening bolt (235) threaded on the outside of the limiting sleeve (234).

5. The pipe fitting splicing structure according to claim 4, characterized in that: The compensation fixing assembly (240) includes a vertical rod (241) fixedly installed on the outside of the limiting sleeve (234), a slide groove (242) opened on the outside of the vertical rod (241), a movable block (243) movably locked in the inner cavity of the slide groove (242), a gripping rod (244) fixedly installed on one side of the movable block (243), a support spring (245) fixedly installed on the other side of the movable block (243), a connecting piece (246) fixedly installed on the end of the support spring (245), and a support plate (247) fixedly installed on the outside of the connecting piece (246).

6. The pipe fitting splicing structure according to claim 5, characterized in that: The manual positioning assembly (250) includes a first screw (251) fixedly installed on the outside of the vertical rod (241), a second screw (252) fixedly installed on the outside of the support plate (247), and an adjustment knob (253) sleeved on the outside of the first screw (251) and the second screw (252).

7. A pipe fitting splicing structure according to claim 6, characterized in that: The conveying mechanism (100) also includes a connecting pipe head (130) fixedly installed on the outside of the flange (120), and a handwheel (140) hinged to the outside of the pipe body (110).

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