Adjustable fixed capillary tube

By incorporating a T-shaped structure and a snap-fit ​​design within the air conditioning capillary bracket, the problem of the capillary bracket's inability to adjust the distance is solved, achieving stable fixation and flexible installation of the capillary. This adapts to the needs of capillary tubes of different sizes and quantities, improving the stability and versatility of the device.

CN224121444UActive Publication Date: 2026-04-14FOSHAN LIANG LAIKE METAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-20
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing air conditioner capillary tube brackets are difficult to adjust according to the distance between capillary tubes, and the fixed size of the brackets is not flexible enough to adapt to different sizes and installation requirements.

Method used

An adjustable capillary tube was designed. A T-shaped structure was formed by setting a sliding groove and a through groove in the base frame. The teeth of the docking block engage with the rack, and the threaded connection of the connecting column, threaded section and nut is combined to realize the adjustment of the distance between the docking blocks. The engagement design of the binding strap and the receiving plate ensures the stable fixation of the capillary tube.

Benefits of technology

It enables flexible adjustment of the capillary spacing, improves the stability and reliability of the device, adapts to the installation requirements of capillary tubes of different specifications and quantities, and has wide versatility.

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Abstract

The utility model belongs to the field of installation of capillary tubes of air conditioners, particularly relates to an adjustable and fixed capillary tube, and aims to solve the problems that the distance for fixing a single capillary tube on an existing support for installing a capillary tube network is relatively fixed, and the existing installation support is difficult to adjust according to the installation distance between the capillary tubes. In order to solve the problem that when capillary tubes of different sizes need to be fixed, fixing frames of corresponding sizes need to be replaced, and the flexibility of the fixing frames is poor in use, the following scheme is provided: the capillary tube fixing frame comprises a plurality of bottom frames, the tops of the plurality of bottom frames are provided with a plurality of bearing plates, and the tops of the bearing plates are matched with binding belts; according to the adjustable capillary tube installation device, due to the fact that the adjustable capillary tube installation device has the characteristic of being adjustable, the installation requirements of capillary tubes of different specifications and numbers can be met, and the installation requirements of a small capillary tube system in a laboratory and a large capillary tube array in industrial production can be met by adjusting the distance and the fixing mode of the butt joint blocks; and the method has wide universality.
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Description

Technical Field

[0001] This utility model relates to the field of air conditioning capillary tube installation technology, and in particular to an adjustable and fixed capillary tube. Background Technology

[0002] Capillary networks used in air conditioning components are high-efficiency heat exchange components that play an important role in heat exchange within air conditioning systems. In residential applications, they can be used in radiant air conditioning systems to replace traditional fan coil units, providing a windless, uniform, and comfortable temperature-controlled environment. In commercial settings such as office buildings and hotels, capillary networks are combined with fresh air systems to achieve independent temperature and humidity control, improving indoor air quality. Meanwhile, in industrial settings such as data centers and electronics factories where high temperature control is required, capillary networks can provide a stable temperature environment, ensuring the smooth operation of equipment.

[0003] Existing air conditioning capillary tubes still have some shortcomings in actual use:

[0004] 1. Due to the different locations required for indoor heating or cooling, the density of capillary tubes laid in some locations is also different. The existing brackets for installing capillary networks have a relatively fixed distance for fixing individual capillary tubes. The existing mounting brackets are difficult to adjust according to the installation distance between capillary tubes.

[0005] 2. Different air conditioner configurations result in different capillary tube sizes. Existing capillary tube mounting brackets have relatively fixed sizes. When it is necessary to fix capillary tubes of different sizes, it is necessary to replace the mounting bracket with one of the corresponding sizes, which makes the mounting bracket less flexible in use. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the fixed distance between individual capillary tubes on the existing brackets for installing capillary networks, the difficulty in adjusting the existing brackets according to the installation distance between capillary tubes, and the need to replace the brackets with corresponding sizes when fixing capillary tubes of different sizes, resulting in poor flexibility in use. Therefore, this invention proposes an adjustable capillary fixing method.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An adjustable fixed capillary includes multiple base frames, each base frame having multiple receiving plates on its top, and each receiving plate having a binding strap on its top; it also includes a capillary network, which is assembled from multiple capillary tubes, with the capillary tubes located between the binding straps and the receiving plates.

[0009] In one possible design, the base frame has a through groove and a sliding groove, and the sliding groove and the through groove are connected to form a T-shape. A mating block slides in the sliding groove. The top two sides of the mating block are provided with multiple teeth. The top inner wall of the sliding groove is provided with multiple racks, and the teeth are engaged with the racks.

[0010] In one possible design, a connecting column is fixedly connected to the top of the docking block, and the connecting column extends through the through groove to the top of the base frame. The outer wall of the connecting column is provided with a threaded section, and a nut is fitted on the outer wall of the connecting column. The nut and the connecting column are threadedly connected through the threaded section, and the bottom of the receiving plate is fixedly connected to the connecting column.

[0011] In one possible design, the receiving plate has two arc-shaped grooves, and both ends of the binding strap pass through the two arc-shaped grooves. A baffle is fixedly connected in the arc-shaped groove, and a stop block is provided at the bottom of each of the two baffles.

[0012] In one possible design, the top of both sides of the restraint strap is provided with one-way teeth, and the one-way teeth engage with the stop blocks.

[0013] In one possible design, the top of the base frame is provided with scale lines, which facilitate the adjustment of multiple mating blocks at equal intervals.

[0014] In this application, multiple capillary tubes form a capillary network. Multiple corresponding base frames are fixed to the wall using bolts and adhesives. The distance between multiple connecting blocks on the base frames is adjusted according to the distance between the capillary tubes. Tightening the nuts releases the connecting blocks from the rack, causing them to fall into the sliding grooves, thus adjusting the distance between the connecting blocks. After adjustment, the nuts are tightened, pressing against the surface of the base frames, causing the connecting blocks to rise into the rack and engage. The corresponding capillary tubes are then placed on the receiving plate, and a binding strap is placed over the capillary tubes. Both ends of the binding strap pass through arc-shaped grooves, and pulling the ends causes the one-way teeth to slide between the stops. Once the binding strap and the receiving plate fix the capillary tubes, the stops engage and limit the one-way teeth.

[0015] Beneficial effects: In this utility model, the adjustable fixed capillary tube is formed by setting a sliding groove and a through groove in the base frame to form a T-shaped structure, and sliding docking blocks in the sliding groove. The two rows of teeth on the top of the docking block and the two rows of toothed racks on the inner wall of the top of the sliding groove are engaged. Combined with the threaded connection structure of the connecting column, threaded section and nut, the user can flexibly adjust the distance between multiple docking blocks according to actual needs. This adjustment method is simple and convenient and can meet the diverse requirements of capillary tube spacing in different application scenarios.

[0016] In this utility model, the adjustable fixed capillary tube is designed so that by pulling the two ends of the binding strap, the one-way teeth on the top of both sides of the binding strap slide between the blocks at the bottom of the two baffles inside the receiving plate. When the capillary tube is clamped, the blocks engage and limit the one-way teeth. This design ensures the stable fixation of the capillary tube between the receiving plate and the binding strap, effectively preventing the capillary tube from shaking or displacing during use, and improving the reliability and stability of the device.

[0017] Because this invention is adjustable, it can adapt to the installation requirements of capillary tubes of different specifications and quantities. Whether it is a small capillary tube system in the laboratory or a large capillary array in industrial production, the installation requirements can be met by adjusting the spacing and fixing method of the docking blocks, thus having wide versatility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an adjustable fixed capillary tube proposed in this utility model;

[0019] Figure 2 This is a cross-sectional exploded view of an adjustable and fixed capillary through-groove proposed in this utility model.

[0020] Figure 3 This is a cross-sectional view of an adjustable and fixed capillary through-groove proposed in this utility model.

[0021] Figure 4 This is a cross-sectional exploded view of an adjustable fixed capillary support plate proposed in this utility model.

[0022] In the diagram: 1. Capillary network; 2. Base frame; 3. Binding belt; 4. Support plate; 5. Connecting block; 6. Slide groove; 7. Through groove; 8. Rack; 9. Nut; 10. Connecting column; 11. Threaded section; 12. One-way tooth; 13. Arc groove; 14. Baffle; 15. Stop block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1: Refer to Figure 1 and Figure 2An adjustable capillary tube, used in the field of air conditioning capillary tubes, includes multiple base frames 2, each with multiple receiving plates 4 on its top, and binding straps 3 attached to the top of each receiving plate 4; it also includes a capillary network 1, which is assembled from multiple capillary tubes, with the capillary tubes positioned between the binding straps 3 and the receiving plates 4. Multiple base frames 2 are prepared, and multiple receiving plates 4 are evenly arranged on the top of each base frame 2. Binding straps 3 are installed on the top of each receiving plate 4. The binding straps 3 should be designed to be adjustable in tightness to accommodate capillary tubes of different diameters. The multiple capillary tubes are assembled into the capillary network 1 according to design requirements, ensuring a firm connection between the capillary tubes and a stable overall structure. The assembled capillary network 1 is placed on the receiving plates 4 on the base frames 2, ensuring that the capillary tubes are positioned between the binding straps 3 and the receiving plates 4.

[0025] Reference Figure 2 The base frame 2 has a through groove 7 and a sliding groove 6, which are connected to form a T-shape. A mating block 5 slides within the sliding groove 6. Multiple teeth are provided on both sides of the top of the mating block 5. Multiple racks 8 are provided on the inner top wall of the sliding groove 6, and the teeth engage with the racks 8. Through grooves 7 and sliding grooves 6 are provided inside each base frame 2, ensuring that the sliding groove 6 and through groove 7 are connected to form a T-shaped structure. The mating block 5 is slidably installed within the sliding groove 6. Multiple teeth are provided on both sides of the top of the mating block 5 to engage with the subsequently installed racks 8. Multiple racks 8 are provided on the inner top wall of the sliding groove 6, ensuring that the racks 8 correspond to the teeth on the mating block 5, forming an engaging structure.

[0026] Reference Figure 3 A connecting post 10 is fixedly connected to the top of the docking block 5, and the connecting post 10 passes through the through groove 7 to the top of the base frame 2. The outer wall of the connecting post 10 is provided with a threaded section 11, and a nut 9 is fitted on the outer wall of the connecting post 10. The nut 9 and the connecting post 10 are threadedly connected through the threaded section 11, and the bottom of the receiving plate 4 is fixedly connected to the connecting post 10. The bottom of the connecting post 10 is fixedly connected to the top of the docking block 5 to ensure that the connecting post 10 can vertically pass through the through groove 7 to the top of the base frame 2. The threaded section 11 is provided on the outer wall of the connecting post 10 to facilitate subsequent threaded connection with the nut 9. The nut 9 is fitted on the outer wall of the connecting post 10 and threadedly connected to the connecting post 10 through the threaded section 11 to ensure that the nut 9 can press against the surface of the base frame 2, thereby adjusting the height of the docking block 5. The bottom of the receiving plate 4 is fixedly connected to the top of the connecting post 10. In this way, when the docking block 5 slides in the slide groove 6, the receiving plate 4 will also move accordingly.

[0027] Reference Figure 4The receiving plate 4 has two arc-shaped grooves 13, and both ends of the restraint strap 3 pass through the two arc-shaped grooves 13. A baffle 14 is fixedly connected within the arc-shaped grooves 13, and a stop block 15 is provided at the bottom of each baffle 14. Each receiving plate 4 has two arc-shaped grooves 13 to ensure that both ends of the restraint strap 3 can pass through these grooves. The baffles 14 are fixedly connected within the arc-shaped grooves 13 to limit the movement of the restraint strap 3. The stop blocks 15 at the bottom of the two baffles 14 ensure that the stop blocks 15 can engage with the one-way teeth 12 on the restraint strap 3.

[0028] Reference Figure 4 The top of both sides of the restraint strap 3 is provided with one-way teeth 12, and the one-way teeth 12 engage with the stop block 15. The cooperation between the one-way teeth 12 and the stop block 15 facilitates the sliding and tightening of the restraint strap 3 on the receiving plate 4.

[0029] Example 2: Reference Figure 2 An improvement based on Embodiment 1: The top of the base frame 2 is provided with scale lines, which facilitate the adjustment of multiple docking blocks 5 at equal intervals.

[0030] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable fixed capillary tube, characterized in that, include: Multiple base frames (2), each base frame (2) is provided with multiple support plates (4) on its top, and the top of each support plate (4) is fitted with a binding strap (3); It also includes a capillary network (1), which is assembled from multiple capillaries and the capillaries are located between the binding band (3) and the receiving plate (4).

2. The adjustable fixed capillary tube according to claim 1, characterized in that, The base frame (2) is provided with a through groove (7) and a sliding groove (6), and the sliding groove (6) and the through groove (7) are connected to form a T-shape. A docking block (5) slides in the sliding groove (6). Multiple teeth are provided on both sides of the top of the docking block (5). Multiple racks (8) are provided on the top inner wall of the sliding groove (6), and the teeth are engaged with the racks (8).

3. An adjustable fixed capillary tube according to claim 2, characterized in that, The top of the docking block (5) is fixedly connected to a connecting column (10), and the connecting column (10) passes through the through groove (7) to the top of the base frame (2). The outer wall of the connecting column (10) is provided with a threaded section (11), and a nut (9) is fitted on the outer wall of the connecting column (10). The nut (9) and the connecting column (10) are threadedly connected by the threaded section (11), and the bottom of the receiving plate (4) is fixedly connected to the connecting column (10).

4. An adjustable fixed capillary tube according to claim 1, characterized in that, The receiving plate (4) is provided with two arc-shaped grooves (13), and both ends of the binding strap (3) pass through the two arc-shaped grooves (13). A baffle (14) is fixedly connected in the arc-shaped groove (13), and a stop block (15) is provided at the bottom of the two baffles (14).

5. An adjustable fixed capillary tube according to claim 1, characterized in that, The top of both sides of the restraint strap (3) is provided with one-way teeth (12), and the one-way teeth (12) engage with the stop block (15).

6. An adjustable fixed capillary tube according to claim 1, characterized in that, The top of the base frame (2) is provided with scale lines, which facilitate the adjustment of multiple docking blocks (5) at equal intervals.