CN112577124A - Air conditioner copper pipe welding-free connection butt joint - Google Patents
Air conditioner copper pipe welding-free connection butt joint Download PDFInfo
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- CN112577124A CN112577124A CN202011465678.9A CN202011465678A CN112577124A CN 112577124 A CN112577124 A CN 112577124A CN 202011465678 A CN202011465678 A CN 202011465678A CN 112577124 A CN112577124 A CN 112577124A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a welding-free connection butt joint for copper pipes of air conditioners, which comprises outer pipes, copper pipes, threaded heads and connecting mechanisms, wherein the outer pipes are arranged in a bilateral symmetry mode, the copper pipes are arranged in the outer pipes, the copper pipes are sleeved with the threaded heads which are of an internal thread annular structure, and the two threaded heads are connected through the connecting mechanisms.
Description
Technical Field
The invention relates to the technical field of air-conditioning copper pipes, in particular to a welding-free connection butt joint for an air-conditioning copper pipe.
Background
An air conditioner, i.e. an air conditioner, refers to a device for adjusting and controlling parameters such as temperature, humidity, flow rate and the like of ambient air in a building or a structure by manual means, generally comprises a cold source/heat source device, a cold and hot medium transmission and distribution system, a terminal device and other auxiliary devices, and mainly comprises a refrigeration host, a water pump, a fan and a pipeline system, wherein the terminal device is responsible for utilizing the cold and heat quantity transmitted and distributed to specifically process the air state so as to enable the air parameters of a target environment to reach certain requirements, the air conditioner is an indispensable part of people in modern life, the pipeline system of the air conditioner comprises a copper pipe, the copper pipe is also called as a red copper pipe, one of nonferrous metal pipes is a pressed and drawn seamless pipe, the copper pipe has the characteristics of good electrical conductivity and thermal conductivity, and the main materials of conductive fittings and heat dissipation fittings of electronic products, the copper pipe is mainly used for connecting an outdoor unit and an indoor unit of the air conditioner, but the following problems can occur in the welding-free connection process of the copper pipe of the air conditioner:
1. the traditional copper pipe of the air conditioner is free from welding connection, the distance of a butt joint adopted when an indoor unit and an outdoor unit of the air conditioner are connected cannot be adjusted, when the indoor unit and the outdoor unit of the air conditioner are connected, the connection cannot be carried out when the connection distance is a little poor, even if the connection is also unstable, a conveying medium in the copper pipe leaks, and the connection effect is poor;
2. the welding-free connection of the copper pipes is realized through the threaded connection of the butt joints, and the connection between the copper pipes is not tight due to threaded gaps in the threaded connection process, so that the existence of the gaps connected between the copper pipes is easy to cause, and the conveying medium in the copper pipes is leaked.
Disclosure of Invention
Technical scheme (I)
In order to achieve the purpose, the invention adopts the following technical scheme that the air conditioner copper pipe welding-free connection butt joint comprises an outer pipe, copper pipes, threaded heads and a connecting mechanism, wherein the outer pipe is arranged in a bilateral symmetry mode, the copper pipes are arranged in the outer pipe, the threaded heads are sleeved on the copper pipes and are of an internal thread annular structure, and the two threaded heads are connected through the connecting mechanism.
The connecting mechanism comprises a fixed hollow column, a first external thread pipe, a second external thread pipe, a convex ring, connecting pipes, a ring groove, an annular baffle and a clamping group, wherein the fixed hollow column is arranged between the left copper pipe and the right copper pipe, the two ends of the fixed hollow column are respectively provided with the first external thread pipe and the second external thread pipe, the outer walls of the first external thread pipe and the second external thread pipe are both provided with threads, the first external thread pipe is fixedly connected with the fixed hollow column, the inner wall of the first external thread pipe close to the inner side end is provided with threads, the inner side end of the second external thread pipe is provided with the convex ring, the convex ring is a structure with the conical diameter gradually reduced towards the inner side, the inner side end surface of the convex ring is provided with the connecting pipe, the outer wall of the connecting pipe is provided with threads, the connecting pipe is connected with the first external thread pipe in a thread matching way, the inner wall of the fixed hollow column is provided, an annular baffle is sleeved on the outer wall of the first external thread pipe close to the inner side, a clamping group is arranged in the annular groove, when the connection distance between the left copper pipe and the right copper pipe is not enough, the second external thread pipe is rotated to drive the convex ring to rotate, the convex ring drives the connecting pipe to rotate, the connecting pipe moves outwards while rotating, so that the second external thread pipe extends, then the first external thread pipe is clamped by the clamping group, the first external thread pipe and the second external thread pipe are respectively in threaded connection with the thread heads at the two ends, the thread heads drive the copper pipe to be connected with the second external thread pipe through the first external thread pipe, so that the copper pipe can be connected without welding, the connection efficiency of the copper pipe is improved, meanwhile, the distance can be adjusted by rotating the second external thread pipe, so that the connection of two copper pipes with insufficient distance is facilitated.
As a preferred technical scheme of the invention, the clamping group comprises clamping grooves, clamping columns, connecting plates, a reset spring, a pushing rod and a rotating head, the clamping grooves are axially and equidistantly formed in the outer wall of the second externally threaded pipe, the clamping grooves are annularly arranged, moving grooves are symmetrically formed in the upper and lower sides of the annular groove, the clamping columns are arranged in the moving grooves, the upper ends of the clamping columns are round-headed, the lower ends of the clamping columns are positioned in the clamping grooves, the connecting plates are mounted on the clamping columns, the connecting plates are connected with the annular groove through the reset spring, a threaded through groove is formed in one side, close to the end face of the fixed hollow column, of the upper ends of the moving grooves, the pushing rod is arranged in the threaded through groove in a threaded fit mode, the rotating head is mounted at the outer side end of the pushing rod, the inner side end of the pushing rod is round-headed, and after, the catch bar rotates and leads to the groove cooperation with the screw thread and makes the catch bar move to the inboard, and the catch bar promotes card post and moves down, and the card post is fixed No. two externally threaded pipes in moving the draw-in groove, rotates when avoiding No. two externally threaded pipes to be connected with the thread head, leads to connecting unstably.
As a preferred technical scheme of the invention, the outer wall of the fixed hollow column is symmetrically provided with annular clamping plates, the annular clamping plates are in a semi-annular structure, semi-annular rubber plates are arranged in inner annular surfaces of the annular clamping plates, sponge layers are arranged inside the semi-annular rubber plates, the lower end of one annular clamping plate is symmetrically provided with ear plates from left to right, the lower end surface of the other annular clamping plate is provided with a round-head rotating plate, the round-head rotating plate is hinged with the ear plates through a hinge shaft, the clamping upper sides of the outer annular surfaces of the annular clamping plates are provided with mounting plates, the mounting plates are provided with mounting holes, the two mounting plates are connected through screws, the screws are positioned in the mounting holes, the rear ends of the screws are provided with nuts, the nuts are matched with the screws through threads, after the fixed hollow column is connected with the left copper pipe and the right copper pipe, the two annular clamping plates are combined together, the annular, the semi-annular rubber slab will fix hollow post and control two thread heads and wrap up tightly, and sponge layer extrusion deformation in the semi-annular rubber slab will fix hollow post and control two thread heads and carry out effectual laminating, and a external thread pipe and No. two external thread pipes and thread head threaded connection department, the gap department of being connected seals, avoids having the gap to make the intraductal gas of copper or liquid outflow.
As a preferred technical scheme of the invention, the connection rings are respectively arranged on the opposite sides of the left and right threaded heads, the connection rings are in a horn shape, the outer ring surfaces of the connection rings are connected with the outer pipe through the telescopic pipes, the connection rings prevent the copper pipe from moving out of the threaded heads, the telescopic pipes connect the threaded heads with the outer pipe together, and the copper pipe is prevented from being exposed outside and protected.
As a preferred technical solution of the present invention, tapered rings are mounted at outer side ends of the first outer threaded pipe and the second outer threaded pipe, the tapered rings are annular structures with diameters gradually decreasing toward the outside, and a seal ring is mounted at an outer end surface of each tapered ring, so that the first outer threaded pipe, the second outer threaded pipe and a threaded head are better connected together by the tapered rings, the connection sealing performance is improved, and the seal ring improves the sealing performance between the tapered rings and the threaded head.
As a preferable technical scheme of the invention, the annular baffle is fixedly sleeved with a rubber ring, and the rubber ring is used for avoiding a connecting gap between the rubber ring and the fixed hollow column when the second external thread pipe moves relative to the outer side.
(II) advantageous effects
1. The connecting mechanism adopted by the invention can adjust the distance of the connecting copper pipe between the indoor unit and the outdoor unit of the air conditioner in a short distance, so that the indoor unit and the outdoor unit of the air conditioner can be tightly connected together;
2. the second external thread pipe drives the connecting pipe to move outwards in the rotating process, so that the second external thread pipe is extended, two copper pipes to be connected can be tightly connected together, and the connection tightness is ensured;
3. the sponge layer is arranged inside the semi-annular rubber plate, and when the semi-annular rubber plate is clamped, the sea level layer is effectively attached to a gap between the fixed hollow column and the threaded head, so that leakage of a conveying medium is avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is an enlarged view of a portion of the invention at B of FIG. 2;
FIG. 5 is an enlarged view of a portion of the invention at C of FIG. 2;
FIG. 6 is an enlarged view of a portion of the invention at D of FIG. 2;
fig. 7 is a partial enlarged view of the invention at E of fig. 3.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
As shown in fig. 1 to 7, the butt joint for the air conditioner copper pipe without welding comprises an outer pipe 1, a copper pipe 2, threaded heads 3 and a connecting mechanism 4, wherein the outer pipe 1 is arranged in a bilateral symmetry mode, the copper pipe 2 is arranged in the outer pipe 1, the threaded heads 3 are sleeved on the copper pipe 2, the threaded heads 3 are of an internal thread annular structure, and the two threaded heads 3 are connected through the connecting mechanism 4.
The connecting mechanism 4 comprises a fixed hollow column 40, a first external thread pipe 41, a second external thread pipe 42, a convex ring 43, a connecting pipe 44, an annular groove 45, an annular baffle plate 46 and a clamping group 47, the fixed hollow column 40 is arranged between the left copper pipe 2 and the right copper pipe 2, the two ends of the fixed hollow column 40 are respectively provided with the first external thread pipe 41 and the second external thread pipe 42, the outer walls of the first external thread pipe 41 and the second external thread pipe 42 are both provided with threads, the first external thread pipe 41 is fixedly connected with the fixed hollow column 40, the inner wall of the first external thread pipe 41 close to the inner side end is provided with threads, the inner side end of the second external thread pipe 42 is provided with the convex ring 43, the convex ring 43 is a structure with the conical diameter gradually reduced towards the inner side, the inner side end surface of the convex ring 43 is provided with the connecting pipe 44, the outer wall of the connecting pipe 44 is provided with threads, and the connecting pipe 44 is connected, an annular groove 45 is formed in the inner wall of the fixed hollow column 40, the annular groove 45 is located on a first external thread pipe 41, an annular baffle 46 is sleeved on the inner side outer wall of the first external thread pipe 41, a clamping group 47 is arranged in the annular groove 45, when the required connection distance between the left copper pipe 2 and the right copper pipe 2 is not enough, a second external thread pipe 42 is rotated, the second external thread pipe 42 drives a convex ring 43 to rotate, the convex ring 43 drives a connecting pipe 44 to rotate, the connecting pipe 44 moves outwards while rotating, so that the second external thread pipe 42 extends, then the first external thread pipe 41 is clamped through the clamping group 47, the first external thread pipe 41 and the second external thread pipe 42 are respectively in threaded connection with the thread heads 3 at two ends, the thread heads 3 drive the copper pipes 2 to be connected with the second external thread pipe 42 through the first external thread pipe 41, so that the copper pipes 2 can be connected without welding, the connection efficiency of the copper pipes 2 is improved, and the distance can be adjusted by rotating the second externally threaded pipe 42, so that the connection of two copper pipes 2 with insufficient distance is facilitated.
The outer wall of the fixed hollow column 40 is symmetrically provided with annular clamping plates 401, the annular clamping plates 401 are of a semi-annular structure, the inner annular surfaces of the annular clamping plates 401 are respectively provided with a semi-annular rubber plate 402, the inner parts of the semi-annular rubber plates 402 are sponge layers, the lower end of one annular clamping plate 401 is symmetrically provided with ear plates 403 from left to right, the lower end surface of the other annular clamping plate 401 is provided with a round head rotating plate 404, the round head rotating plate 404 is hinged with the ear plates 403 through a hinge shaft, the clamping upper side of the outer annular surface of the annular clamping plate 401 is respectively provided with a mounting plate 405, the mounting plates 405 are respectively provided with a mounting hole, the two mounting plates 405 are connected through a screw 406, the screw 406 is positioned in the mounting hole, the rear end of the screw 406 is provided with a nut 407, the nut 407 is matched with the screw 406 through threads, after the fixed hollow column 40 is connected with the, annular chucking plate 401 drives semi-annular rubber slab 402 and closes tightly, semi-annular rubber slab 402 will fix hollow post 40 and control two thread heads 3 and wrap up tightly, sponge layer extrusion deformation in semi-annular rubber slab 402 will fix hollow post 40 and control two thread heads 3 and carry out effectual laminating, screwed pipe 41 and No. two screwed pipe 42 and 3 threaded connection departments of thread head, the gap department of connection seals, avoid having the gap to make gas or the liquid outflow in the copper pipe 2.
The outside end of a number one outer threaded pipe 41 and a number two outer threaded pipe 42 all install conical ring 410, conical ring 410 is the annular structure that the diameter gradually reduces to the outside, sealing washer 411 is installed to the outer terminal surface of conical ring 410, conical ring 410 makes a number one outer threaded pipe 41 and a number two outer threaded pipe 42 and threaded head 3 better link together, the leakproofness of the connection that improves, sealing washer 411 makes conical ring 410 and threaded head 3 leakproofness improve.
The annular baffle 46 is fixedly sleeved with a rubber ring 460, and the rubber ring 460 is used for avoiding a connecting gap between the second externally threaded pipe 42 and the fixed hollow column 40 when the second externally threaded pipe moves outwards.
The clamping set 47 includes a clamping groove 471, clamping columns 472, a connecting plate 473, a return spring 474, a pushing rod 475 and a rotating head 476, the clamping grooves 471 are axially and equidistantly formed on the outer wall of the second outer threaded pipe 42, the clamping grooves 471 are annularly arranged, moving grooves are symmetrically formed in the annular groove 45 from top to bottom, the clamping columns 472 are arranged in the moving grooves, the upper ends of the clamping columns 472 are round-headed, the lower ends of the clamping columns 472 are positioned in the clamping grooves 471, the connecting plate 473 is installed on the clamping columns 472, the connecting plate 473 is connected with the annular groove 45 through the return spring 474, a threaded through groove is formed in one side, close to the end face of the fixed hollow column 40, of the upper ends of the moving grooves, the pushing rod 475 is arranged in the threaded through groove in a threaded fit manner, the rotating head 476 is installed at the outer side end of the pushing rod 475, the inner side end of the pushing rod 475 is round-headed, after the second outer threaded pipe, the push rod 475 rotates and is led to the push rod 475 to move to the inner side through the groove, the push rod 475 pushes the clamping column 472 to move downwards, the clamping column 472 moves into the clamping groove 471 to fix the second externally threaded pipe 42, and the second externally threaded pipe 42 is prevented from rotating when being connected with the threaded head 3, so that connection is unstable.
The left and right back surfaces of the threaded heads 3 are both provided with connecting rings 30, the connecting rings 30 are horn-shaped, the outer annular surfaces of the connecting rings 30 are connected with the outer pipe 1 through telescopic pipes 31, the connecting rings 30 prevent the copper pipe 2 from moving out of the threaded heads 3, the telescopic pipes 31 connect the threaded heads 3 with the outer pipe 1, and the copper pipe 2 is prevented from being exposed outside and protected.
When the connection distance required by the left copper pipe 2 and the right copper pipe 2 is not enough, the second externally threaded pipe 42 is rotated, the second externally threaded pipe 42 drives the convex ring 43 to rotate, the convex ring 43 drives the connecting pipe 44 to rotate, the connecting pipe 44 moves outwards while rotating, so that the second externally threaded pipe 42 extends, the rubber ring 460 is used for avoiding a gap between the second externally threaded pipe 42 and the fixed hollow column 40 when moving outwards, after the second externally threaded pipe 42 moves for a certain distance, the rotating head 476 drives the pushing rod 475 to rotate by rotating the rotating head 476, the pushing rod 475 rotates to be matched with the threaded through groove so that the pushing rod 475 moves inwards, the pushing rod 475 pushes the clamping column 472 to move downwards, the clamping column 472 moves into the clamping groove 471 to fix the second externally threaded pipe 42, and the second externally threaded pipe 42 is prevented from rotating when being connected with the threaded head 3, leading to unstable connection, then respectively connecting the first external thread pipe 41 and the second external thread pipe 42 with the thread heads 3 at two ends in a threaded manner, the thread heads 3 drive the copper pipe 2 to be connected with the second external thread pipe 42 through the first external thread pipe 41, so that the copper pipe 2 can be connected without welding, the connection efficiency of the copper pipe 2 is improved, meanwhile, the distance can be adjusted by rotating the second external thread pipe 42, the connection of two copper pipes 2 with insufficient distance is convenient, after the fixed hollow column 40 is connected with the left and right copper pipes 2, the two annular clamping plates 401 are combined together, the annular clamping plates 401 drive the semi-annular rubber plate 402 to be tightly combined, the semi-annular rubber plate 402 tightly wraps the fixed hollow column 40 with the left and right thread heads 3, the sponge layer in the semi-annular rubber plate 402 is extruded and deformed to effectively attach the fixed hollow column 40 with the left and right thread heads 3, the threaded connection between the first externally threaded pipe 41 and the second externally threaded pipe 42 and the threaded head 3 is sealed at the connection gap, so that gas or liquid in the copper pipe 2 is prevented from flowing out through the gap, the telescopic pipe 31 connects the threaded head 3 with the outer pipe 1, the copper pipe 2 is prevented from being exposed, and the copper pipe 2 is protected.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides an air conditioner copper pipe exempts from welded connection butt joint, includes outer tube (1), copper pipe (2), thread head (3) and coupling mechanism (4), its characterized in that: the outer pipe (1) is arranged in a bilateral symmetry mode, copper pipes (2) are arranged in the outer pipe (1), threaded heads (3) are sleeved on the copper pipes (2), the threaded heads (3) are of an internal thread annular structure, and the two threaded heads (3) are connected through a connecting mechanism (4);
the connecting mechanism (4) comprises a fixed hollow column (40), a first external thread pipe (41), a second external thread pipe (42), a convex ring (43), a connecting pipe (44), an annular groove (45), an annular baffle (46) and a clamping group (47), wherein the fixed hollow column (40) is arranged between the left copper pipe and the right copper pipe (2), the two ends of the fixed hollow column (40) are respectively provided with the first external thread pipe (41) and the second external thread pipe (42), the outer walls of the first external thread pipe (41) and the second external thread pipe (42) are both provided with threads, the first external thread pipe (41) is fixedly connected with the fixed hollow column (40), the inner wall of the end close to the inner side of the first external thread pipe (41) is provided with threads, the convex ring (43) is arranged at the inner side end of the second external thread pipe (42), and the convex ring (43) is of a structure with a tapered diameter gradually reduced towards the inner side, connecting pipe (44) are installed to the inboard terminal surface of protruding ring (43), and the screw thread has been seted up to the outer wall of connecting pipe (44), and connecting pipe (44) are connected through screw-thread fit with No. one external thread pipe (41), and annular groove (45) have been seted up to the inner wall of fixed hollow post (40), and annular groove (45) are located No. one external thread pipe (41), and No. one external thread pipe (41) are close to inboard outer wall cover and are equipped with annular baffle (46), are provided with chucking group (47) in annular groove (45).
2. The air conditioner copper pipe welding-free connection butt joint according to claim 1, characterized in that: the clamping group (47) comprises clamping grooves (471), clamping columns (472), connecting plates (473), reset springs (474), pushing rods (475) and rotating heads (476), the clamping grooves (471) are axially and equidistantly formed in the outer wall of the second external threaded pipe (42), the clamping grooves (471) are annularly arranged, moving grooves are symmetrically formed in the annular groove (45) from top to bottom, the clamping columns (472) are arranged in the moving grooves, the upper ends of the clamping columns (472) are round-head-shaped, the lower ends of the clamping columns (472) are located in the clamping grooves (471), the connecting plates (473) are installed on the clamping columns (472), the connecting plates (473) are connected with the annular groove (45) through the reset springs (474), threaded through grooves are formed in one side, close to the end face of the fixed hollow column (40), of the upper ends of the moving grooves are provided with the pushing rods (475), the pushing rods (475) are arranged in the threaded through grooves, and the, the inner end of the push rod (475) is round.
3. The air conditioner copper pipe welding-free connection butt joint according to claim 1, characterized in that: the outer wall of the fixed hollow column (40) is symmetrically provided with annular clamping plates (401), the annular clamping plates (401) are of a semi-annular structure, semi-annular rubber plates (402) are arranged in the inner annular surfaces of the annular clamping plates (401), sponge layers are arranged inside the semi-annular rubber plates (402), ear plates (403) are installed on the lower end of one annular clamping plate (401) in a bilateral symmetry mode, a round head rotating plate (404) is installed on the lower end face of the other annular clamping plate (401), the round head rotating plate (404) is hinged to the ear plates (403) through a hinge shaft, an installation plate (405) is installed on the clamping upper side of the outer ring face of the annular clamping plate (401), installation holes are formed in the installation plate (405), the two installation plates (405) are connected through screws (406), the screws (406) are located in the installation holes, nuts (407) are arranged at the rear ends of the screws (406), and the nuts (407) are matched with the screws (406) through threads.
4. The air conditioner copper pipe welding-free connection butt joint according to claim 1, characterized in that: the back surfaces of the left and right thread heads (3) are respectively provided with a connecting ring (30), the connecting rings (30) are in a horn shape, and the outer annular surface of each connecting ring (30) is connected with the outer pipe (1) through a telescopic pipe (31).
5. The air conditioner copper pipe welding-free connection butt joint according to claim 1, characterized in that: the outer side ends of the first outer threaded pipe (41) and the second outer threaded pipe (42) are respectively provided with a conical ring (410), the conical rings (410) are of annular structures, the diameters of the annular structures gradually decrease outwards, and the outer end faces of the conical rings (410) are provided with sealing rings (411).
6. The air conditioner copper pipe welding-free connection butt joint according to claim 1, characterized in that: the annular baffle (46) is fixedly sleeved with a rubber ring (460).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465678.9A CN112577124B (en) | 2020-12-14 | 2020-12-14 | Air conditioner copper pipe welding-free connection butt joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011465678.9A CN112577124B (en) | 2020-12-14 | 2020-12-14 | Air conditioner copper pipe welding-free connection butt joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112577124A true CN112577124A (en) | 2021-03-30 |
| CN112577124B CN112577124B (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011465678.9A Active CN112577124B (en) | 2020-12-14 | 2020-12-14 | Air conditioner copper pipe welding-free connection butt joint |
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| Country | Link |
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| CN (1) | CN112577124B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183947A (en) * | 2021-12-03 | 2022-03-15 | 宁波德业科技股份有限公司 | Pipeline connecting device for air conditioner evaporator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040178626A1 (en) * | 2003-03-11 | 2004-09-16 | Salvador Segreto | Insulated tubular assembly |
| CN2720229Y (en) * | 2004-09-08 | 2005-08-24 | 连云港市太阳雨热水器制造有限公司 | Adapter for heat-transfer coiled pipe of solar water heater |
| WO2013125743A1 (en) * | 2012-02-23 | 2013-08-29 | Lee Jong-Tae | Connection pipe for v-type double wall pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114183947A (en) * | 2021-12-03 | 2022-03-15 | 宁波德业科技股份有限公司 | Pipeline connecting device for air conditioner evaporator |
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| Publication number | Publication date |
|---|---|
| CN112577124B (en) | 2022-05-27 |
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