Composite plastic refrigeration line connector

Abstract

The utility model discloses a kind of composite plastic refrigeration pipeline connecting pieces, it is related to pipe fitting connection technical field.A kind of composite plastic refrigeration pipeline connecting piece, including installation pipe frame one and installation pipe frame two, two connecting plates are fixedly connected in the both sides of installation pipe frame one and installation pipe frame two, four connecting plates are fixedly installed by bolt, pipeline adjusting structure, pipeline adjusting structure is located installation pipe frame one, pipeline adjusting structure includes arc fixed plate, arc moving plate, knob lever and limit rod, arc fixed plate is fixedly connected in the inside of installation pipe frame one, by two symmetrical settings pipeline adjusting structure independent work, when adjusting one of pipeline main body, only need to loosen corresponding knob lever, another pipeline main body is not affected due to arc moving plate keep locking, solve the stress concentration problem caused by traditional rigid linkage design in " all move together", protect composite plastic pipeline main body from bending or cracking damage.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and in particular to a composite plastic refrigeration pipe connector. Background Technology

[0002] In the piping connections of refrigeration systems (such as household air conditioners, cold chain equipment, industrial chillers, etc.), composite plastic connectors are widely used to connect refrigeration pipes of different diameters or directions (such as connecting pipes between evaporators and condensers, refrigerant delivery pipes, etc.) due to their advantages such as light weight, strong corrosion resistance, and lower cost than metal materials.

[0003] In existing structures, the two pipe fittings and connectors adopt a "rigid linkage" design, meaning that any change in the position of one pipe fitting will force the other pipe fitting to move synchronously, and the two cannot be adjusted independently. This design has obvious limitations in actual assembly or maintenance. When it is necessary to fine-tune one pipe fitting to adapt to the alignment accuracy of the equipment interface, the other fixed pipe fitting will bear additional stress due to this linkage relationship. For composite plastic pipe fittings, their rigidity is relatively weak and their resistance to deformation is limited. Continuous stress can cause the pipeline to bend and deform, or cause uneven stress at the interface. In scenarios that require multiple adjustments, the overall loosening and tightening process of traditional connectors will aggravate the wear of composite plastic materials, thereby reducing the overall service life of the connectors. Therefore, we propose a composite plastic refrigeration pipe connector. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a composite plastic refrigeration pipe connector that can solve the problem of the "rigid linkage" design of the two pipes and connectors in the existing structure. That is, the positional change of any pipe will force the other pipe to move synchronously, and the two cannot be adjusted independently. This design has obvious limitations in actual assembly or maintenance. When it is necessary to fine-tune one of the pipes to adapt to the alignment accuracy of the equipment interface, the other fixed pipe will bear additional stress due to this linkage relationship. For composite plastic pipes, their rigidity is weak and their resistance to deformation is limited. Continuous stress will cause the pipe to bend and deform, or cause uneven stress at the interface. In scenarios that require multiple adjustments, the overall loosening and tightening process of traditional connectors will aggravate the wear of composite plastic materials, thereby reducing the overall service life of the connector.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite plastic refrigeration pipe connector, comprising: Install pipe rack one and pipe rack two. Two connecting plates are fixedly connected to both sides of pipe rack one and pipe rack two. All four connecting plates are fixedly installed by bolts. Pipeline adjustment structure, located at the installation pipe rack; The pipeline adjustment structure includes an arc-shaped fixed plate, an arc-shaped movable plate, a knob rod, and a limiting rod. The arc-shaped fixed plate is fixedly connected inside the first mounting pipe rack. The top of the second mounting pipe rack is provided with a threaded hole, a threaded hole, and a sliding hole. The knob rod is threaded inside the threaded hole. The bottom end of the knob rod extends into the interior of the second mounting pipe rack and is rotatably connected to the arc-shaped movable plate. An adjustment groove is provided inside the second mounting pipe rack. The limiting rod is slidably connected inside the sliding hole. The bottom end of the limiting rod is fixedly connected to the arc-shaped movable plate.

[0006] Preferably, the pipeline adjustment structure further includes a screw, and the top of the knob rod has a sliding hole two, through which the screw passes and is threadedly connected to the threaded hole one.

[0007] Preferably, there are two pipeline adjustment structures, which are symmetrically arranged on the mounting pipe rack.

[0008] Preferably, both the arc-shaped fixed plate and the arc-shaped movable plate are fixedly connected with anti-slip pads inside.

[0009] Preferably, the top of the first mounting bracket is fixedly connected to two positioning rods, and the top of the second mounting bracket has two positioning holes, with both positioning rods slidingly connected to the interior of the corresponding positioning holes.

[0010] Preferably, multiple anti-slip strips are fixedly connected to the handle of the knob.

[0011] Preferably, both the arc-shaped fixed plate and the arc-shaped movable plate are semi-circular structures.

[0012] Preferably, two pipeline bodies are installed on the opposite surfaces of the first and second mounting brackets.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This composite plastic refrigeration pipe connector works independently through two symmetrically arranged pipe adjustment structures. When adjusting one of the pipe bodies, only the corresponding knob rod needs to be loosened, and the other pipe body remains locked due to the arc-shaped moving plate, thus solving the stress concentration problem caused by "one moving and all moving" in the traditional rigid linkage design and protecting the composite plastic pipe body from bending or cracking damage. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the anti-slip mat structure of this utility model; Figure 3This is a schematic diagram of the second structure of the mounting pipe rack of this utility model; Figure 4 This is a schematic diagram of the arc-shaped movable plate structure of this utility model.

[0015] Reference numerals in the attached drawings: 1. Pipe rack one; 2. Pipe rack two; 3. Positioning rod; 4. Knob rod; 5. Anti-slip pad; 6. Arc-shaped fixing plate; 7. Arc-shaped moving plate; 8. Adjustment groove; 9. Positioning hole; 10. Threaded hole one; 11. Threaded hole two; 12. Sliding hole one; 13. Limiting rod; 14. Screw; 15. Sliding hole two; 16. Connecting plate. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] Pipe rack 1: As one of the basic frames for the connectors, the top is fixedly connected to the positioning rod 3, the inside is fixedly connected to the arc-shaped fixing plate 6, and the sides are fixedly connected to the connecting plate 16. It is fastened to pipe rack 2 with bolts to form an integral whole, providing an installation carrier for the pipeline adjustment structure and the main body of the pipeline. Installation pipe rack 2: It works with installation pipe rack 1 to form an integral frame. The top is provided with threaded hole 10, threaded hole 21, sliding hole 12 and positioning hole 9. The inside is provided with adjustment groove 8. The two sides are fixedly connected to connecting plates 16 for installing components such as knob rod 4 and limit rod 13 of the pipeline adjustment structure, providing operating space for pipeline adjustment. Positioning rod 3: It is fixedly connected to the top of the mounting pipe support 1 and slidably connected to the positioning hole 9 of the mounting pipe support 2, so as to ensure that the mounting pipe support 1 and the mounting pipe support 2 are aligned and their relative positions are stable, providing a reference for the pipeline adjustment structure; Knob 4: It is threaded into the threaded hole 11 of the mounting pipe rack 2, and its bottom end is rotatably connected to the arc-shaped moving plate 7. The top is provided with a sliding hole 15. An anti-slip strip is fixedly connected to the handle. By rotating, the arc-shaped moving plate 7 moves up and down to adjust the tightness of the main body of the pipeline. Anti-slip pad 5: It is fixedly connected inside the arc-shaped fixed plate 6 and the arc-shaped moving plate 7, and contacts the outer wall of the pipeline body. It enhances friction through elastic deformation, achieves anti-slip positioning and improves sealing. Arc-shaped fixing plate 6: It has a semi-circular structure and is fixedly connected inside the installation pipe rack 1. The anti-slip pad 5 is fixedly connected inside and works with the arc-shaped moving plate 7 to clamp the lower half of the main body of the pipeline and provide stable support. Arc-shaped movable plate 7: It has a semi-circular structure and is located in the adjustment groove 8 of the mounting pipe rack 2. The top end is rotatably connected to the knob rod 4, and the bottom end is fixedly connected to the limit rod 13. The anti-slip pad 5 is fixedly connected inside. It can clamp or loosen the main body of the pipeline by moving up and down in conjunction with the arc-shaped fixed plate 6. Adjustment groove 8: It is opened inside the mounting pipe rack 2 to provide space for the up and down movement of the arc-shaped moving plate 7 and limit its range of movement; Positioning hole 9: It is opened on the top of the second mounting pipe rack 2 and is slidably connected to the positioning rod 3 of the first mounting pipe rack 1 to help position the relative position of the first mounting pipe rack 1 and the second mounting pipe rack 2. Threaded hole 10: It is opened on the top of the mounting bracket 2 and is threaded to the screw 14. It is used to further lock the position of the knob 4 and the arc-shaped moving plate 7 through the screw 14. Threaded hole 21: It is opened on the top of the mounting bracket 2 and is threaded to the knob 4 to provide threaded engagement for the rotation adjustment of the knob 4; Sliding hole 12: It is opened on the top of the mounting pipe rack 2 and is slidably connected to the limiting rod 13 to restrict the rotation of the limiting rod 13 and the arc-shaped moving plate 7, so as to ensure its smooth up and down movement; Limiting rod 13: It is slidably connected in the sliding hole 12, and its bottom end is fixedly connected to the arc-shaped moving plate 7. It is used to limit the rotation of the arc-shaped moving plate 7 and ensure that it moves in a straight line. Screw 14: Passes through the sliding hole 15 of the knob rod 4 and is threadedly connected to the threaded hole 10. It is used to lock the position of the knob rod 4, prevent it from loosening, and enhance the clamping stability of the arc-shaped moving plate 7 on the pipeline body. Sliding hole 2 15: It is opened at the top of the knob rod 4, through which the screw 14 passes, providing a channel for the connection between the screw 14 and the threaded hole 10; Connecting plate 16: Two are fixedly connected to each side of the mounting pipe rack 1 and the mounting pipe rack 2. The mounting pipe rack 1 and the mounting pipe rack 2 are fastened together by bolts to form an integral frame.

[0021] Example 1: like Figure 1-4 As shown, the connecting pipes between the indoor and outdoor units of the household air conditioner are made of composite plastic with a pipe diameter of φ12mm. During installation, due to the deviation of the position of the reserved hole in the wall, it is necessary to slightly adjust the angle of one of the refrigerant pipes by ±5° to avoid bending stress. The other pipe has been fixed to the interface of the outdoor unit.

[0022] When it is necessary to adjust the unfixed pipeline, take out the screw 14 on the corresponding knob 4, rotate the knob 4 to make it move upward along the threaded hole 11, drive the arc-shaped moving plate 7 to rise in the adjustment groove 8, and loosen the pipeline; After manually fine-tuning the pipe angle to the appropriate position, rotate the knob 4 in the opposite direction to lower the arc-shaped moving plate 7 and press it against the pipe. The anti-slip pad 5 deforms to enhance the seal. Then, screw 14 through the sliding hole 2 15 and screw it into the threaded hole 10 to lock the adjustment position.

[0023] Only the target pipe is adjusted, while the other pipe remains locked and does not shift due to the arc-shaped moving plate 7, avoiding the interface stress caused by traditional linkage adjustment, and adapting to the fine installation needs of home scenarios.

[0024] Example 2: By fixing multiple anti-slip strips to the handle of the knob 4, in home installation scenarios, operators often wear gloves or have dust on their hands. The anti-slip strips can increase the friction between the handle and the hand, preventing slippage when rotating the knob 4, ensuring the precise lifting and lowering of the arc-shaped moving plate 7, and achieving smooth operation for fine-tuning the angle.

[0025] Furthermore, when using the device, the mounting pipe support 1 and the mounting pipe support 2 are fastened together by the connecting plates 16 on both sides and bolts to form an integral frame; the positioning rod 3 at the top of the mounting pipe support 1 is inserted into the positioning hole 9 of the mounting pipe support 2 to ensure that the two are aligned and their relative positions are stable, providing a reference for the pipeline adjustment structure.

[0026] The two main pipe bodies are respectively placed in the two pipe adjustment structures inside the pipe rack 1. The lower half of each main pipe body is attached to the arc-shaped fixed plate 6, and the upper half corresponds to the arc-shaped moving plate 7. The anti-slip pads 5 inside the arc-shaped fixed plate 6 and the arc-shaped moving plate 7 are in contact with the outer wall of the main pipe body, thus initially achieving anti-slip positioning.

[0027] If it is necessary to adjust the position of one of the main pipes, remove the screw 14 on the knob 4, and rotate the knob 4 of the corresponding pipe adjustment structure: the knob 4 is threaded into the threaded hole 11 of the mounting bracket 2, and its bottom end pushes the arc-shaped moving plate 7 up and down in the adjustment groove 8. The limiting rod 13 slides along the sliding hole 12 to limit the rotation of the arc-shaped moving plate 7 and ensure stable translation. When the arc-shaped moving plate 7 is released from the main pipe, the pipe can be moved to the target position alone, while the other pipe remains fixed because the corresponding adjustment structure is not loose.

[0028] After adjustment, rotate the knob 4 in the opposite direction to press the arc-shaped moving plate 7 against the main body of the pipeline. The anti-slip pad 5 is deformed by the pressure, which enhances the friction and sealing with the pipeline. Then, pass the screw 14 through the sliding hole 15 of the knob 4 and screw it into the threaded hole 10 to further lock the position of the arc-shaped moving plate 7 and prevent it from loosening. The anti-slip strip on the handle of the knob 4 improves the stability of the operation during adjustment.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A composite plastic refrigeration line connection, characterized in that include: Install pipe rack one (1) and pipe rack two (2). Two connecting plates (16) are fixedly connected to both sides of pipe rack one (1) and pipe rack two (2). All four connecting plates (16) are fixedly installed by bolts. Pipeline adjustment structure, the pipeline adjustment structure is located in the installation pipe rack one (1); The pipeline adjustment structure includes an arc-shaped fixed plate (6), an arc-shaped movable plate (7), a knob rod (4) and a limit rod (13). The arc-shaped fixed plate (6) is fixedly connected to the inside of the first mounting pipe rack (1). The top of the second mounting pipe rack (2) is provided with a threaded hole (10), a threaded hole (11) and a sliding hole (12). The knob rod (4) is threadedly connected to the inside of the threaded hole (11). Among them, the bottom end of the knob rod (4) extends into the interior of the second mounting tube (2) and is rotatably connected to the arc-shaped moving plate (7). The interior of the second mounting tube (2) is provided with an adjustment groove (8). The limit rod (13) is slidably connected to the interior of the first sliding hole (12). The bottom end of the limit rod (13) is fixedly connected to the arc-shaped moving plate (7).

2. A composite plastic refrigerant line connection according to claim 1, characterized in that: The pipeline adjustment structure also includes a screw (14), and a sliding hole (15) is provided at the top of the knob (4). The screw (14) passes through the interior of the sliding hole (15) and is threadedly connected to the threaded hole (10).

3. A composite plastic refrigerant line connection according to claim 1, wherein: The number of the pipeline adjustment structures is two, and the two pipeline adjustment structures are symmetrically arranged on the installation pipe rack (1).

4. A composite plastic refrigerant line connection according to claim 1, wherein: Both the arc-shaped fixed plate (6) and the arc-shaped moving plate (7) are fixedly connected with anti-slip pads (5).

5. A composite plastic refrigeration pipe connector according to claim 1, characterized in that: The top of the first mounting bracket (1) is fixedly connected with two positioning rods (3), and the top of the second mounting bracket (2) has two positioning holes (9). Both positioning rods (3) are slidably connected to the interior of the corresponding positioning holes (9).

6. A composite plastic refrigerant line connection according to claim 1, wherein: Multiple anti-slip strips are fixedly connected to the handle of the knob rod (4).

7. A composite plastic refrigerant line connection as defined in claim 1, wherein: Both the arc-shaped fixed plate (6) and the arc-shaped movable plate (7) are semi-circular structures.

8. A composite plastic refrigerant line connection according to claim 1, wherein: Two pipe bodies are installed on the opposite surfaces of the installation pipe rack one (1) and installation pipe rack two (2).

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