Aluminum alloy pipe connector and aluminum alloy pipe system

Abstract

The present invention discloses an aluminum alloy pipe connector and an aluminum alloy pipe system, and relates to the technical field of aluminum alloy pipes, wherein an aluminum alloy pipe connector comprises an inner pipe sleeve assembly that is inserted into the inner side of an aluminum alloy connecting pipe and two outer pipe sleeves that cover the outer side of the aluminum alloy connecting pipe; wherein the inner pipe sleeve assembly is composed of two first inner pipe sleeves and a second inner pipe sleeve that are spliced ​​to each other, one end of the first inner pipe sleeve and the second inner pipe are respectively inserted into the aluminum alloy connecting pipe, and the other end has an annular outer edge plate extending outward, and the two outer pipe sleeves are fixedly connected by a fixing assembly, and the interiors of the two outer pipe sleeves are provided with semi-annular matching grooves, and a connecting cavity with two ends through which the aluminum alloy connecting pipe passes is formed between the two matching grooves. The present invention realizes fixing of two aluminum alloy connecting pipes by multiple mortise and tenon type clamping, and is convenient for connection and disassembly, simple to operate, and has high stability after connection.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy pipe technology, and in particular to an aluminum alloy pipe connector and an aluminum alloy pipe system. Background Technology

[0002] Existing aluminum alloy pipes generally use flanges, welding, or threaded connections. Flange connections require more bolts the larger the flange, making maintenance and disassembly inconvenient and increasing costs due to the larger number of parts. Welded connections consume more energy, incur higher construction costs, and pollute the environment during installation. Maintenance and disassembly also require mechanical cutting and welding, further increasing construction costs. Threaded connections similarly require significant space for maintenance and disassembly, and welding can easily cause pipe twisting and deformation, which is inconsistent with the needs of green construction. Therefore, the design of aluminum alloy pipe connections is becoming increasingly important.

[0003] Currently, the connectors for installing aluminum alloy pipes, such as the aluminum alloy pipe connectors and aluminum alloy pipe systems in authorization announcement CN109000055 B, include two pipe sleeves and a limiting component. The symmetrical mating points of the two pipe sleeves are the first end and the second end, respectively. The first end is provided with a groove, and the second end is provided with a locking strip. The limiting component includes a first elastic block and a second elastic block. Although it adopts a new snap-fit ​​method to complete the installation of two aluminum alloy pipes, the overall installation process is from the outside to the inside, that is, only the outer sides of the connection between the two pipes are spliced ​​together. In long-term use, when the elasticity of the spring weakens, the connection strength also weakens, thus affecting the stability of subsequent installation. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of weak stability of existing connectors in long-term use, and to propose an aluminum alloy pipe connector and an aluminum alloy pipe system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An aluminum alloy pipe connector includes an inner sleeve assembly that fits and is inserted into the inside of an aluminum alloy connecting pipe, and two outer sleeves that cover the outside of the aluminum alloy connecting pipe.

[0007] The inner tube assembly consists of two first inner tubes and second inner tubes spliced ​​together. One end of the first inner tube and the second inner tube are respectively inserted into the aluminum alloy connecting pipe, and the other end has an annular outer edge plate extending outward.

[0008] The two outer tube sleeves are fixedly connected by a fixing component. The interior of each outer tube sleeve is provided with a semi-annular mating groove. The two mating grooves form a connecting cavity through which the aluminum alloy connecting tube passes. The top surface of each mating groove has a bottom groove in the middle. The two bottom grooves form a placement cavity for placing the outer edge plate. Each bottom groove has a slider on both sides that is positioned and engaged with the outer edge plate. The top of each bottom groove has a screw adjusting component for adjusting the movement of two sliders at the same height. The two side walls of each bottom groove have buffer components that elastically contact the adjacent sliders.

[0009] Preferably, both the first inner sleeve and the second inner sleeve have an arc-shaped bevel at the end that extends into the aluminum alloy connecting pipe.

[0010] Preferably, the top of the outer edge plate is provided with a positioning opening close to the side, and two fitting positioning openings form a positioning recess. The top of the bottom groove of the outer sleeve has a positioning protrusion that matches the positioning recess.

[0011] Preferably, the outer edge plate has symmetrical slots on one side that is in close contact with the adjacent aluminum alloy connecting pipe, and the two outer edge plates have positioning slots and positioning protrusions on the side facing away from the adjacent aluminum alloy connecting pipe, respectively. The side of the slider is connected to a locking block that fits in the slot, and the positioning slot and the positioning protrusion are adapted to each other.

[0012] Preferably, the fixing assembly includes extension lugs fixedly connected to both ends of the outer tube sleeve, fixing bolts threaded into the two extension lugs, and nuts for tightening the fixing bolts.

[0013] Preferably, the buffer component includes buffer grooves on both sides of the bottom groove, a limit rod is fixed in the buffer groove, and a buffer spring that contacts the slider is sleeved on the outside of the limit rod.

[0014] Preferably, the screw adjusting component includes a double-ended screw rotatably installed in a cylindrical groove, the double-ended screw passing through a positioning protrusion, the two ends of the double-ended screw being threadedly adapted to two sliders respectively, and the ends of the double-ended screw being fixedly connected to cylindrical rotating blocks.

[0015] Preferably, the top of both sides of the outer sleeve is provided with side holes for placing cylindrical rotating blocks, and the openings of the side holes are filled with sealing plugs.

[0016] An aluminum alloy piping system, the aluminum alloy piping system comprising aluminum alloy connecting pipes and aluminum alloy pipe fittings;

[0017] At least one end of the aluminum alloy connecting pipe can be adapted to the inner sleeve assembly of the aluminum alloy pipe connector, and the outer sleeve of the aluminum alloy pipe connector can connect the inner sleeve assembly at the connection part of the two aluminum alloy connecting pipes.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention utilizes two outer sleeves and a set of inner sleeve assemblies. Each inner sleeve assembly can connect two aluminum alloy connecting pipes, and the two outer sleeves cover the inner sleeve assemblies and the aluminum alloy connecting pipes, achieving a multi-mortise and tenon joint to fix the two aluminum alloy connecting pipes. This facilitates connection and disassembly, is simple to operate, and ensures high stability after connection. Furthermore, the outer sleeves are equipped with adjusting screws that connect to the mortise and tenon joints of the inner sleeve assemblies, as well as buffer components that tighten the slider. These features ensure the tightness of the mortise and tenon joints when the slider and positioning protrusion engage with the inner sleeve assemblies, and also prevent the slider from detaching in case the double-ended screw slips, further improving the stability of the connected aluminum alloy piping system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an aluminum alloy pipe connector proposed in this invention;

[0021] Figure 2 This is a cross-sectional view of an aluminum alloy piping system proposed in this invention;

[0022] Figure 3 This is a sectional view of the inner sleeve assembly of an aluminum alloy pipe connector proposed in this invention when disassembled.

[0023] Figure 4 This is a cross-sectional view of the outer sleeve of an aluminum alloy pipe connector proposed in this invention.

[0024] Figure 5 This invention proposes an aluminum alloy pipe connector. Figure 4 Enlarged view of the structure at point A in the middle;

[0025] Figure 6 This is a front view of an aluminum alloy pipe connector proposed in this invention.

[0026] In the diagram: 1. Aluminum alloy connecting pipe; 2. Outer sleeve; 3. Fixing assembly; 4. Inner sleeve assembly; 201. Mating groove; 202. Connecting cavity; 203. Cylindrical groove; 204. Double-ended screw; 205. Slider; 206. Buffer groove; 207. Locking block; 208. Limiting rod; 209. Buffer spring; 210. Bottom groove; 211. Positioning protrusion; 212. Side hole; 213. Cylindrical rotating block; 214. Sealing plug; 31. Fixing bolt; 32. Extension ear plate; 33. Nut; 41. First inner sleeve; 42. Second inner sleeve; 43. Outer edge plate; 401. Inclined surface; 402. Locking groove; 403. Positioning opening; 404. Positioning protrusion; 405. Positioning groove. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0029] Reference Figure 1-2 An aluminum alloy pipe connector includes an inner sleeve assembly 4 that fits and is inserted into the inner side of an aluminum alloy connecting pipe 1, and two outer sleeves 2 that cover the outer side of the aluminum alloy connecting pipe 1.

[0030] An aluminum alloy piping system includes an aluminum alloy connecting pipe 1 and aluminum alloy pipe fittings;

[0031] At least one end of the aluminum alloy connecting pipe 1 can be adapted to the inner sleeve assembly 4 of the aluminum alloy pipe connector, and the outer sleeve 2 of the aluminum alloy pipe connector can connect the inner sleeve assembly 4 at the connection part of the two aluminum alloy connecting pipes 1.

[0032] Reference Figure 3-4 The inner tube sleeve assembly 4 consists of two first inner tube sleeves 41 and second inner tube sleeves 42 spliced ​​together. One end of the first inner tube sleeve 41 and the second inner tube sleeve are respectively inserted into the aluminum alloy connecting pipe 1 and the other end has an annular outer edge plate 43 extending outward. After the inner tube sleeve assembly 4 is spliced, it can splice the two aluminum alloy connecting pipes 1 from the inside.

[0033] The two outer sleeves 2 are fixedly connected by a fixing component 3, completing the initial fixation between the two outer sleeves 2. Each of the two outer sleeves 2 has a semi-annular mating groove 201 inside. The two mating grooves 201 form a connecting cavity 202 with both ends through which the aluminum alloy connecting pipe 1 passes, ensuring that the inner parts of the two outer sleeves 2 fit snugly against the aluminum alloy connecting pipe 1 after fitting, thus improving the tightness of the connection. Each mating groove 201 has a bottom groove 210 in the middle of its top surface. The two bottom grooves 210 form a placement cavity for the outer edge plate 43, thereby securing the inner sleeve assembly. 4. The exposed portion of the aluminum alloy connecting pipe 1 is covered, and the top of the outer edge plate 43 is tightly attached to the top wall of the bottom groove 210. Each bottom groove 210 has a slider 205 on both sides that is positioned and engaged with the outer edge plate 43. Each bottom groove 210 has a screw adjustment component at the top that adjusts the movement of two sliders 205 at the same height. That is, each screw adjustment component can drive the movement of two sliders 205 inside an outer tube sleeve 2. Each bottom groove 210 has a buffer component on both sides that elastically contacts the adjacent sliders 205, which can provide elastic support for the sliders 205.

[0034] Both the first inner sleeve 41 and the second inner sleeve 42 have an arc-shaped bevel 401 at one end that extends into the aluminum alloy connecting pipe 1. This can minimize interference with the flow of materials when they are flowing through the aluminum alloy connecting pipe 1. Furthermore, the portions of the first inner sleeve 41 and the second inner sleeve 42 that extend into the aluminum alloy connecting pipe 1 can provide support from the inside of the aluminum alloy connecting pipe 1 to ensure the stability and sealing of the two aluminum alloy connecting pipes 1 when they are joined together.

[0035] The top of the outer edge plate 43 is provided with a positioning opening 403 close to the side. Two fitting positioning openings 403 form a positioning recess. The top of the bottom groove 210 of the outer tube sleeve 2 has a positioning protrusion 211 that matches the positioning recess. During the process of the positioning protrusion 211 and the positioning recess fitting together, the positions of the two outer tube sleeves 2 can be positioned to avoid the two outer tube sleeves 2 being placed randomly. At the same time, the two outer edge plates 43 can be combined together by fitting the positioning protrusion 211 and the positioning recess.

[0036] The outer edge plate 43 has symmetrical slots 402 on one side that is close to the adjacent aluminum alloy connecting pipe 1. The two outer edge plates 43 have positioning slots 405 and positioning protrusions 404 on the side facing away from the adjacent aluminum alloy connecting pipe 1, respectively. The matching of positioning slots 405 and positioning protrusions 404 can ensure that the two positioning openings 403 are flush when the first inner tube sleeve 41 and the second inner tube sleeve 42 are spliced, which facilitates the subsequent snapping with the outer tube sleeve 2. The side of the slider 205 is connected to a locking block 207 that fits in the slot 402. When the slider 205 moves, the locking block 207 can be inserted and fitted in the slot 402, thereby fixing the two outer edge plates 43 from both sides.

[0037] The buffer member includes buffer grooves 206 opened on both side walls of the bottom groove 210. Limit rods 208 are fixed in the buffer grooves 206. The limit rods 208 are perpendicular to the bottom wall of the buffer grooves 206. A buffer spring 209 that contacts the slider 205 is sleeved outside the limit rods 208. The limit rods 208 are mainly used to limit the buffer spring 209 to ensure that the buffer spring 209 rebounds and compresses along the limit rods 208. At the same time, the buffer spring 209 is in a compressed state initially as Figure 4 , during the movement of the slider 205, until the latch 207 snaps into the card slot 402, the buffer spring 209 remains in a compressed state. The rebound of the buffer spring 209 can act on the surface of the slider 205, enabling the latch 207 on the slider 205 to fit into the card slot 402.

[0038] Refer to Figure 4 , the screw adjusting member includes a cylindrical groove 203 opened at the top of the bottom groove 210 and a double-headed screw 204 rotatably installed in the cylindrical groove 203. The double-headed screw 204 passes through the positioning protrusion 211, enabling the double-headed screw 204 to rotate within the positioning protrusion 211. The two ends of the double-headed screw 204 are respectively threadedly adapted to the two sliders 205, and the end of the double-headed screw 204 passes through the slider 205. When the double-headed screw 204 rotates, the two sliders 205 can move in opposite directions. Columnar rotary blocks 213 are fixedly connected to the ends of the double-headed screw 204. Prismatic holes are opened on the surface of the columnar rotary blocks 213, enabling an L-shaped wrench to be inserted into the columnar rotary blocks 213 to drive the rotation of the double-headed screw 204.

[0039] Refer to Figure 4 - Figure 5 , side holes 212 for placing the columnar rotary blocks 213 are provided at the top of both side surfaces of the outer tube sleeve 2. The columnar rotary blocks 213 rotate in the side holes 212, and sealing plugs 214 are filled at the orifices of the side holes 212. The sealing plugs 214 mainly seal the side holes 212 to prevent dust or liquid from entering the side holes 212 to corrode the columnar rotary blocks 213 or affect their rotation function.

[0040] Refer Figure 6 , the fixing component 3 includes extension ear plates 32 fixedly connected to both ends of the outer tube sleeve 2, fixing bolts 31 threadedly inserted into the two extension ear plates 32, and nuts 33 for tightening the fixing bolts 31, enabling the two outer tube sleeves 2 to be fixed by the adaptation of the fixing bolts 31 and the nuts 33.

[0041] Working principle: During connection and installation, firstly, insert the first inner sleeve 41 and the second inner sleeve 42 into the two aluminum alloy connecting pipes 1 respectively. Then, make the first inner sleeve 41 and the second inner sleeve 42 fit together and rotate the first inner sleeve 41 or the second inner sleeve 42 until the positioning protrusion 404 matches the positioning groove 405 and the two positioning openings 403 fit together to form a positioning recess. At this time, put the two outer sleeves 2 on the aluminum alloy connecting pipes 1 at both ends respectively, and put the middle of the two outer sleeves 2 on the two spliced ​​outer edge plates 43. Rotate the two outer sleeves until the positioning protrusions 211 inside the two outer sleeves match the positioning recess. At this time, use the fixing bolts 31 and nuts 33 to splice and fix the two outer sleeves. Finally, open the sealing plug 214, insert the L-shaped wrench into the cross groove on the surface of the cylindrical screw block 213, rotate the cylindrical screw block 213, and drive the double-ended screw 204 to rotate. The double-ended screw 204 starts to rotate, driving the two sliders 205 to move towards the outer edge plate 43 inside the outer sleeve 2, until the locking blocks 207 of the two sliders 205 are inserted into the slots 402 inside the outer edge plate 43. At this time, the buffer spring 209 is still in a compressed state and can rebound against the sliders 205 by its own elasticity, so that the locking blocks 207 fit more tightly in the slots 402. Finally, the sealing plug 214 fills the side hole 212.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An aluminum alloy pipe connector, characterized in that: It comprises an inner pipe sleeve assembly (4) which is inserted into the inner side of an aluminum alloy connecting pipe (1) and two outer pipe sleeves (2) which cover the outer side of the aluminum alloy connecting pipe (1); The inner pipe sleeve assembly (4) is composed of two first inner pipe sleeves (41) and a second inner pipe sleeve (42) which are spliced ​​to each other, one end of the first inner pipe sleeve (41) and the second inner pipe sleeve are respectively matched and inserted into the aluminum alloy connecting pipe (1), and the other end is provided with an annular outer edge plate (43) extending outwards; The two outer tube sleeves (2) are fixedly connected by a fixing assembly (3), and the interiors of the two outer tube sleeves (2) are both provided with a semi-circular matching groove (201), and a connecting cavity (202) with two ends through which the aluminum alloy connecting pipe (1) passes is formed between the two matching grooves (201), and a bottom groove (210) is opened in the middle of the top surface of each matching groove (201), and a placement cavity for placing the outer edge plate (43) is formed between the two bottom grooves (210), and sliders (205) for positioning and clamping with the outer edge plate (43) are provided on both sides of each bottom groove (210), and a screw adjustment member for adjusting the movement of two sliders (205) of the same height is provided at the top of each bottom groove (210), and buffer members for elastically contacting adjacent sliders (205) are provided on both side walls of each bottom groove (210).

2. The aluminum alloy pipe connector according to claim 1, characterized in that: The ends of the first inner tube sleeve (41) and the second inner tube sleeve (42) extending into the aluminum alloy connecting tube (1) are both provided with arc-shaped inclined surfaces (401).

3. The aluminum alloy pipe connector according to claim 1, characterized in that: A positioning opening (403) is provided at the top of the outer edge plate (43) close to the side, and two positioning openings (403) that fit together form a positioning notch. A positioning protrusion (211) that fits the positioning notch is protruded from the middle of the top of the bottom groove (210) of the outer sleeve (2).

4. The aluminum alloy pipe connector according to claim 1, characterized in that: A side surface of the outer edge plate (43) that is in close contact with the adjacent aluminum alloy connecting pipe (1) is symmetrically provided with a clamping groove (402); a side surface of the two outer edge plates (43) that is away from the adjacent aluminum alloy connecting pipe (1) is respectively provided with a positioning groove (405) and a positioning protrusion (404); a side surface of the sliding block (205) is connected with a clamping block (207) that fits in the clamping groove (402); and the positioning groove (405) is adapted to fit the positioning protrusion (404).

5. The aluminum alloy pipe connector according to claim 1, characterized in that: The fixing assembly (3) comprises extension ear plates (32) fixedly connected to both ends of the outer tube sleeve (2), fixing bolts (31) threadedly inserted into the two extension ear plates (32), and nuts (33) for tightening the fixing bolts (31).

6. The aluminum alloy pipe connector according to claim 1, characterized in that: The buffer member comprises a buffer groove (206) opened on two side walls of the bottom groove (210), a limit rod (208) is fixed in the buffer groove (206), and a buffer spring (209) in contact with the slider (205) is sleeved on the outer side of the limit rod (208).

7. The aluminum alloy pipe connector according to claim 3, characterized in that: The screw adjustment member comprises a double-headed screw (204) rotatably mounted in a cylindrical groove (203), the double-headed screw (204) passing through a positioning protrusion (211), the two ends of the double-headed screw (204) respectively threadably matching two sliders (205), and the ends of the double-headed screw (204) are both fixedly connected to a cylindrical rotating block (213).

8. The aluminum alloy pipe connector according to claim 7, characterized in that: The tops of both sides of the outer sleeve (2) are provided with side holes (212) for placing columnar rotating blocks (213), and the openings of the side holes (212) are filled with sealing plugs (214).

9. An aluminum alloy piping system, characterized in that: The aluminum alloy pipeline system comprises an aluminum alloy connecting pipe (1) and an aluminum alloy pipeline connecting piece according to any one of claims 1 to 8; At least one end of the aluminum alloy connecting pipe (1) can be matched with the inner pipe sleeve assembly (4) of the aluminum alloy pipe connecting piece, and the outer pipe sleeve (2) of the aluminum alloy pipe connecting piece can be connected to the inner pipe sleeve assembly (4) at the connecting portion of two aluminum alloy connecting pipes (1).

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