Automobile air conditioner pipeline assembly

Abstract

The utility model belongs to the technical field of automobile air conditioner pipelines, and particularly relates to an automobile air conditioner pipeline assembly which comprises a metal pipe, a hose and a sleeve, the metal pipe comprises a connecting section with an annular groove structure, the connecting section can be inserted into one end of the hose, and the sleeve wraps the connecting section and one end of the hose and is connected with the connecting section and the hose in a buckled mode. The sleeve is provided with an annular protruding structure corresponding to the annular groove. Compared with the prior art, the combination of the metal pipe and the hose can be subjected to welding connection after the angle and the direction are adjusted according to the assembly requirements of customers, high flexibility is achieved, meanwhile, the hose is a five-layer structure hose which is high in strength, resistant to pressure and higher in stability, buckling connection is conducted after the sleeve is assembled, and therefore the stability of the pipeline assembly is higher.

Description

Technical Field

[0001] The utility model relates to the field of automobile air-conditioning pipelines, and more specifically, to an automobile air-conditioning pipeline component. Background Art

[0002] The car air conditioning system is designed to adjust the air temperature and humidity in the car, improve air circulation and enhance air cleanliness.

[0003] Air conditioning pipes are essential accessories in automobile air conditioning systems. They are used to connect condensers, evaporators, compressors, liquid storage tanks and other devices, thereby realizing the linkage of various devices in the air conditioning system.

[0004] Air conditioning pipe components include hard pipes, hoses and joints. Currently, the pipe structures of automobile air conditioning pipes on the market are mostly different depending on the vehicle. For example, the existing Chinese utility model patent with the authorization announcement number CN211901906U and the name of the special-shaped air conditioning pipe includes a built-in hose, a shaped appearance and a locking tube. The built-in hose is inserted into the special-shaped joint to change the angle, and the built-in hose that needs to run in a straight line is covered with a shaped outer tube. The internal built-in hose is supported and shaped by the shaped outer tube, and the shaped outer tube is fixed to the built-in hose by the locking tube, so as to adjust the shape of the air conditioning pipe according to the needs to adapt to the shape and space inside the engine compartment.

[0005] In the above technical solution, although the built-in hose and the shaped outer tube are matched and a locking ring is provided for auxiliary fixation, so that the pipeline assembly can be adjusted in different spaces, it is easy to shake when subjected to external force, and its stability has certain defects, and refrigerant leakage and penetration are prone to occur during use. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an automobile air-conditioning pipeline assembly that solves the above technical problems.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An automobile air conditioning pipeline assembly comprises a metal pipe, a hose and a sleeve, wherein the metal pipe comprises a connecting section having an annular groove structure.

[0009] The connecting section can be inserted into one end of the hose, the sleeve covers the connecting section and one end of the hose and is buckled and connected with the connecting section and the hose, and the sleeve is provided with an annular protrusion structure corresponding to the annular groove.

[0010] Further, the metal tube includes a special-shaped tube and two L-shaped tubes, the hose is provided with two, and the pipeline assembly further includes a tube clamp structure, the special-shaped tube and the L-shaped tube both have a connecting section,

[0011] The two L-shaped tubes correspond to each other, and the tube clamp structure connects and fixes the two L-shaped tubes.

[0012] Furthermore, the pipe clamp structure includes a metal clamp, two locking sleeves, and an installation locking member.

[0013] The metal clip is composed of two L-shaped plates that are integrally formed and matched. The clip has two clamping spaces and two locking notches.

[0014] The locking sleeve has a C-shaped cross section and is clamped in the clamping space. The L-shaped tube can pass through the locking sleeve for later installation and fixing of the air conditioning pipeline.

[0015] Two locking notches are arranged at the ends of the metal clip and correspond to each other, and the installation locking piece can be inserted into the locking notches.

[0016] Furthermore, the locking sleeve is made of rubber, a slot matching the clamping space is provided on the outer wall of the locking sleeve, and a toothed friction strip abutting against the L-shaped tube is provided on the inner wall of the locking sleeve.

[0017] Furthermore, the locking piece is in an I-shape and is made of rubber.

[0018] Furthermore, one L-shaped plate of the metal clip is provided with a pressing piece, and the other L-shaped plate of the clip is provided with a pressing groove corresponding to the pressing piece.

[0019] Furthermore, the hose comprises a five-layer structure of an inner rubber layer, a shielding layer, a middle rubber layer, a reinforcing layer and an outer rubber layer, wherein the reinforcing layer is placed between the middle rubber layer and the outer rubber layer and bonds the middle rubber layer and the outer rubber layer;

[0020] The inner rubber layer is oil-resistant and corrosion-resistant rubber, the reinforcement layer is composed of fabric bonded to the middle rubber layer and the outer rubber layer, and the outer rubber layer is heat-resistant and ozone-resistant rubber.

[0021] Furthermore, the inner rubber layer may be made of oil-resistant and corrosion-resistant rubber, the reinforcing layer may be made of fabric, the shielding layer may be made of nylon, and the outer layer may be made of heat-resistant fabric impregnated with synthetic rubber.

[0022] By adopting the above technical solution, the beneficial effects of the utility model are:

[0023] 1. Both the special-shaped tube and the L-shaped tube are made of metal and are connected to the hose through a sleeve, which makes the pipeline assembly more stable;

[0024] 2. In view of the sealing characteristics of the connection between the metal pipe and the hose, two parts of different materials, the metal pipe end structure (connection section) connected to the software is improved by design, and an annular groove structure is adopted. This structure increases the force-bearing area of ​​the hose after buckling, enhances its blasting ability, and improves the pressure resistance of the pipeline;

[0025] 3. For the hose, the four-layer hose structure is cancelled and the five-layer hose structure is adopted. The soft and hard hose combination assembly process does not require glue coating and sealing. Combined with the connection section structure, it can be sealed directly by buckling, which improves production efficiency and enhances the sealing performance of the air conditioning pipeline;

[0026] 4. The material selection structure of the hose is optimized. The inner rubber layer on the hose wall greatly improves the pressure resistance and anti-leakage performance of the hose, and there is no need to apply glue before crimping (the original hose crimping process: pre-installation → gluing → crimping, the current hose crimping process: pre-installation → crimping), which reduces a manual operation link and improves production efficiency;

[0027] 5. The integrated pipe clamp structure can more stably fix the two L-shaped pipes together, thereby improving the overall stability of the pipeline assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0029] Figure 2 Schematic diagram of the structure of the metal clip.

[0030] Figure 3 It is a structural schematic diagram of the seismic locking sleeve.

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the sleeve.

[0032] Figure 5 It is a schematic diagram of the cross-sectional structure of a five-layer hose.

[0033] Figure numerals: special-shaped tube 1, connecting section 1a, L-shaped tube 2, two hoses 3, inner rubber layer 3a, shielding layer 3b, middle rubber layer 3c, reinforcement layer 3d, outer rubber layer 3e, sleeve 4, pipe clamp structure 5, metal clip 51, L-shaped plate 51a, compression sheet 51b, seismic locking sleeve 52, installation locking piece 53, clamping space 501, locking notch 502, compression groove 503, card slot 504. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] The automobile air-conditioning pipeline assembly includes a special-shaped tube 1, two L-shaped tubes 2, two hoses 3, four sleeves 4 and a tube clamp structure 5. The special-shaped tube 1 and the L-shaped tube 2 are both made of metal material. The special-shaped tube 1 and the L-shaped tube both have a connecting section 1a, and the connecting section 1a has a plurality of annular groove structures. The sleeve 4 is sleeved on one end of the hose 3. The connecting section 1a passes through the sleeve 4 and is inserted into one end of the hose 3. The connecting section 1a, the hose 3 and the sleeve 4 can be connected by crimping a crimping machine. The sleeve 4 is also made of metal. The crimping machine is used to crimp so that a protrusion structure that matches the annular groove structure is formed on the sleeve 4.

[0037] The special-shaped tube 1, the L-shaped tube 2 and the hose 3 are connected together through the sleeve 4. The special-shaped tube 1 and the L-shaped tube 2 are used as the main pipelines, and the hose 3 is used as the auxiliary connecting pipeline, so that the angle of the pipeline as a whole can be adjusted in the space; and the special-shaped tube 1 and the L-shaped tube 2 made of metal are used as the main parts, so that the installation and fixation in the space is more stable and not easy to shake due to force;

[0038] After testing, the pipeline assembly of the utility model has a bursting pressure requirement of ≥12Mpa, and the test meets the requirements of QC / T664-2000. When pressurized to 22Mpa, the hose ruptures, and there is no leakage in the metal pipe and hose combination, which exceeds the national standard by about 1 times. The detection performance of the metal pipe connection section and the hose in the utility model after buckling and riveting is better than the national standard.

[0039] The two L-shaped tubes 2 correspond to each other, and the tube clamp structure 5 includes a metal clamp 51, two locking sleeves 52, and an installation locking member 53. The metal clamp 51 is composed of two L-shaped plates 51a that are integrally formed and overlapped, and the metal clamp 51 is composed of an integral stamped metal. The metal clamp 51 has two clamping spaces 501 and a locking notch 502. One L-shaped plate 51a of the clamp 51 has a pressing sheet 51b, and the other L-shaped plate 51a of the clamp 51 has a pressing groove 503 corresponding to the pressing sheet 51b. The locking sleeve 52 is made of rubber, and a slot 504 cooperating with the clamping space 501 is provided on the outer wall of the locking sleeve 52, and a toothed strip 52a that contacts the L-shaped tube 2 is provided on the inner wall of the locking sleeve 52; the locking sleeve 52 has a C-shaped cross-section and is clamped in the clamping space 501, and the L-shaped tube 2 can pass through the locking sleeve 52; two locking notches 502 are placed at the ends of the clip 51 and correspond to each other, and the installation locking piece 53 can be inserted into the two locking notches 502, and the installation locking piece 53 is I-shaped and is composed of a combination of rubber and metal.

[0040] When fixing the two L-shaped tubes 2, firstly pass the two L-shaped tubes 2 through the two locking sleeves 52 respectively, then open the metal clip 51 and move the positions of the two L-shaped tubes 2 so that the card slots 504 on the two anti-seismic locking sleeves 52 are respectively inserted into the two clamping spaces 501, and finally the metal clip 51 is pressed together to align the two locking notches 502, and then the I-shaped installation locking piece 53 is inserted into the locking notch 502, and finally the pressing sheet 51b is bent until it passes through the pressing groove 503 and abuts against the other L-shaped plate 51a; the C-shaped anti-seismic locking sleeve 52 can not only realize its convenient installation, but also cooperate with the friction strip 52a arranged therein, so that when the clip 51 is pressed together, the friction force between the friction strip 52a and the L-shaped tube 2 is increased; in this way, the two L-shaped tubes 2 can be fixed together, so that they are not easily shaken by external force after installation.

[0041] The hose 3 comprises an inner rubber layer 3a, a shielding layer 3b, a middle rubber layer 3c, a reinforcing layer 3d and an outer rubber layer 3e. The reinforcing layer 3d is placed between the inner middle rubber layer 3c and the outer rubber layer 3e and bonds the middle rubber layer 3c and the outer rubber layer 3e.

[0042] Hose 1: The inner rubber layer 3a is made of oil-resistant and corrosion-resistant rubber, the shielding layer 3b is made of nylon, the reinforcing layer 3d is made of fabric bonded with the middle rubber layer 3c and the outer rubber layer 3e, and the outer rubber layer 3e is made of heat-resistant and ozone-resistant rubber;

[0043] Hose 2: The inner rubber layer 3a is made of oil-resistant and corrosion-resistant rubber, the reinforcement layer 3d is made of fabric, and the outer layer is made of heat-resistant fabric impregnated with synthetic rubber.

[0044] The inner rubber layer 3a on the hose 3 greatly improves the pressure resistance and anti-leakage performance of the hose 3, and no glue coating is required before buckling, which reduces a manual operation link, thereby greatly improving the production efficiency of the pipeline.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile air conditioning pipeline assembly, characterized in that: It includes a metal pipe, a hose and a sleeve, wherein the metal pipe includes a connecting section with an annular groove structure. The connecting section can be inserted into one end of the hose, the sleeve covers the connecting section and one end of the hose and is buckled and connected with the connecting section and the hose, and the sleeve has an annular protrusion structure corresponding to the annular groove.

2. The automobile air conditioning pipeline assembly according to claim 1, characterized in that: The metal tube includes a special-shaped tube and two L-shaped tubes, and the hose is provided with two. The pipeline assembly also includes a tube clamp structure. The special-shaped tube and the L-shaped tube both have a connecting section. The two L-shaped tubes correspond to each other, and the tube clamp structure connects and fixes the two L-shaped tubes.

3. The automobile air conditioning pipeline assembly according to claim 2, characterized in that: The pipe clamp structure includes a metal clamp, two locking sleeves, and an installation locking piece. The metal clip is composed of two integrally formed and matched L-shaped plates, and the clip has two clamping spaces and two locking notches. The locking sleeve has a C-shaped cross section and is clamped in the clamping space, and the L-shaped tube can pass through the locking sleeve. The two locking notches are arranged at the ends of the clip and correspond to each other, and the installation locking piece can be inserted into the two locking notches.

4. The automobile air conditioning pipeline assembly according to claim 3, characterized in that: The locking sleeve is made of rubber, a clamping groove matched with the clamping space is arranged on the outer wall of the locking sleeve, and a toothed friction strip abutting against the L-shaped tube is arranged on the inner wall of the locking sleeve.

5. The automobile air conditioning pipeline assembly according to claim 3, characterized in that: The locking piece is in an I-shape and is made of rubber.

6. The automobile air conditioning pipeline assembly according to claim 3, characterized in that: One L-shaped plate of the metal clip is provided with a pressing piece, and the other L-shaped plate of the clip is provided with a pressing groove corresponding to the pressing piece.

7. The automobile air conditioning pipeline assembly according to claim 1, characterized in that: The hose comprises an inner rubber layer, a shielding layer, a middle rubber layer, a reinforcing layer and an outer rubber layer. The reinforcing layer is arranged between the middle rubber layer and the outer rubber layer and is bonded to the middle rubber layer and the outer rubber layer.

8. The automobile air conditioning pipeline assembly according to claim 7, characterized in that: The inner rubber layer is made of oil-resistant and corrosion-resistant rubber, the reinforcing layer is composed of fabric bonded to the middle rubber layer and the outer rubber layer, and the outer rubber layer is made of heat-resistant and ozone-resistant rubber.

9. The automobile air conditioning pipeline assembly according to claim 7, characterized in that: The inner rubber layer is made of oil-resistant and corrosion-resistant rubber, the reinforcing layer is made of fabric, the shielding layer is made of nylon, and the outer layer is made of heat-resistant fabric impregnated with synthetic rubber.

Images