Air conditioner pipe copper connector with heat preservation structure

Abstract

An air conditioner pipe copper connector with a heat preservation structure comprises a connector body, a left nut connected outside the left end of the connector body in a screwed mode and a right nut connected outside the right end of the connector body in a screwed mode, and the connector body is sleeved with an outer heat preservation pipe coaxial with the connector body. The inner wall of the right end of the outer heat preservation pipe is attached to the outer wall of the right nut, and the left nut is sleeved with the left end of the outer heat preservation pipe. The right end of the outer heat preservation pipe is fixed to the right nut through a limiting structure. An inner heat preservation pipe arranged outside the connector body in a sleeving mode is arranged between the left nut and the right nut, and the outer wall of the inner heat preservation pipe is attached to the inner wall of the outer heat preservation pipe. A left limiting ring is arranged at the left end of the inner thermal insulation pipe; a right limiting ring is arranged at the right end of the inner heat preservation pipe. The air conditioner pipe copper connector with the heat preservation structure can conduct heat preservation on cold air and hot air flowing through the air conditioner pipe copper connector, cold energy and heat energy are prevented from flowing away, and therefore the situation that an air conditioner leaks water due to the fact that the temperature difference between the inside and the outside is large is avoided.

Description

Technical Field

[0001] The utility model relates to a copper joint for an air-conditioning pipe, in particular to a copper joint for an air-conditioning pipe with a heat-insulating structure. Background Art

[0002] The copper joint of the air-conditioning pipe is a joint made of copper material, which is used to connect two originally independent air-conditioning pipes. In order to prevent the loss of cold and heat when the cold air and hot air of the air-conditioning flow through the air-conditioning pipe, a layer of rubber cotton will be wrapped around the outside of the air-conditioning pipe to achieve a thermal insulation effect. The traditional copper joint of the air-conditioning pipe does not have any thermal insulation structure, but is directly in contact with the outside air. Once there is a difference between the outside temperature and the temperature of the gas transported by the air-conditioning pipe, it will cause the loss of cold and heat. In this case, even if the air-conditioning pipe is wrapped with a layer of rubber cotton, the cold and heat will be lost to the outside through the copper joint of the air-conditioning pipe. Even in the case of a large temperature difference, water droplets will condense on the outer wall of the copper joint of the air-conditioning pipe, eventually causing the air conditioner to leak. Summary of the Invention

[0003] The utility model aims to solve the existing technical problem by providing an air-conditioning pipe copper joint with a thermal insulation structure, which can insulate the cold air and hot air flowing through it, avoid the loss of cold and heat, and thus avoid the situation where the air conditioner leaks due to a large temperature difference between the inside and the outside.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] The utility model discloses a copper joint for air-conditioning pipes with a heat-insulating structure, comprising a joint body, a left nut screwed onto the outside of the left end of the joint body, and a right nut screwed onto the outside of the right end of the joint body, wherein the joint body is covered with an outer heat-insulating pipe coaxial with the joint body; the inner wall of the right end of the outer heat-insulating pipe fits with the outer wall of the right nut, and the left end of the outer heat-insulating pipe is sleeved onto the outside of the left nut; the right end of the outer heat-insulating pipe is fixed to the right nut by a limiting structure; an inner heat-insulating pipe set on the outside of the joint body is provided between the left nut and the right nut, and the outer wall of the inner heat-insulating pipe fits with the inner wall of the outer heat-insulating pipe; a left limiting ring is provided at the left end of the inner heat-insulating pipe; the inner A right limiting ring is provided at the right end of the insulation pipe; the joint body passes through the inner holes of the left limiting ring and the right limiting ring at the same time; a left sliding plate and a right sliding plate located on the right side of the left sliding plate are provided between the inner wall of the inner insulation pipe and the outer wall of the joint body, and both the left sliding plate and the right sliding plate are annular; the outer edge of the left side wall of the left sliding plate fits with the right side wall of the left limiting ring; the outer edge of the right side wall of the right sliding plate fits with the left side wall of the right limiting ring; the right side wall of the left sliding plate, the left side wall of the right sliding plate, the inner wall of the inner insulation pipe and the outer wall of the joint body enclose an annular insulation cavity; the insulation cavity is filled with insulation cotton.

[0006] A spring is provided outside the joint body between the right side wall of the left sliding plate and the left side wall of the right sliding plate.

[0007] The edge of the right end hole of the inner hole of the left sliding plate extends to the right to form a left guide tube outside the joint body; the edge of the left end hole of the inner hole of the right sliding plate extends to the left to form a right guide tube outside the joint body; there is a movable distance between the right end face of the left guide tube and the left end face of the right guide tube; the left end of the spring is sleeved on the outside of the left guide tube, and the right end of the spring is sleeved on the outside of the right guide tube.

[0008] The outer diameter of the right part of the left nut gradually decreases from left to right, and the outer diameter of the right end of the left nut is smaller than the inner diameter of the left limiting ring; the outer diameter of the left part of the right nut gradually decreases from right to left, and the outer diameter of the left end of the right nut is smaller than the inner diameter of the right limiting ring.

[0009] There is an anti-collision gap between the inner wall of the left end of the outer insulation pipe and the outer wall of the left nut; the left end of the outer insulation pipe is covered with a sealing cover, which is made of rubber; the left inner wall of the sealing cover fits with the left end face of the left nut; a through hole is provided in the center of the sealing cover, and the inner diameter of the through hole is larger than the inner diameter of the left nut.

[0010] The outer wall of the outer insulation pipe is provided with an insulation layer; the insulation layer is formed by insulation coating.

[0011] The limiting structure includes a plurality of screw holes evenly arranged on the outer wall of the right nut in a circular shape; the outer wall of the right end of the external insulation pipe is provided with a plurality of grooves corresponding to the positions of the screw holes; a limiting hole that is connected to the screw hole is provided at the center of the bottom of the groove; a limiting screw passes through the limiting hole and is screwed into the screw hole, and the head of the limiting screw is pressed on the bottom of the groove.

[0012] The left limiting ring and the left end of the inner thermal insulation pipe, as well as the right limiting ring and the right end of the inner thermal insulation pipe are fixed by a plurality of fixing screws evenly distributed around the circumference.

[0013] The beneficial effects of the utility model are:

[0014] Compared with the existing technology, the outer insulation tube and the inner insulation tube of the air-conditioning pipe copper joint with an insulation structure using the structure of the utility model can form two layers of insulation on the outer circle of the joint body, effectively preventing the outer wall of the joint body from directly contacting the external flowing air and causing the loss of cold and heat. At the same time, the insulation cotton in the insulation cavity between the inner wall of the inner insulation tube and the outer wall of the joint body can form a third layer of insulation, avoiding the loss of cold and heat to the greatest extent, and effectively avoiding the large difference between the temperature inside the joint body and the external temperature, resulting in condensation of water droplets on the outer wall of the joint body, thereby effectively avoiding the condensation of water droplets on the outer wall of the joint body and causing water leakage in the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a structural diagram of the utility model of the copper joint for air-conditioning pipes with a heat-insulating structure;

[0016] Figure 2 yes Figure 1 Magnified view of part A. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] See also Figure 1 、 Figure 2 The utility model provides a copper joint for air-conditioning pipes with a thermal insulation structure, comprising a joint body 1, a left nut 2 screwed on the outside of the left end of the joint body 1, and a right nut 3 screwed on the outside of the right end of the joint body 1. The joint body 1 is covered with an outer thermal insulation tube 4 coaxial with it; the inner wall of the right end of the outer thermal insulation tube 4 fits with the outer wall of the right nut 3, and the left end of the outer thermal insulation tube 4 is sleeved on the outside of the left nut 2; the right end of the outer thermal insulation tube 4 is fixed to the right nut 3 by a limiting structure; an inner thermal insulation tube 5 is provided between the left nut 2 and the right nut 3, which is set on the outside of the joint body 1, and the outer wall of the inner thermal insulation tube 5 fits with the inner wall of the outer thermal insulation tube 4; the left end of the inner thermal insulation tube 5 is provided with a left limiting ring 6; the inner thermal insulation tube A right limiting ring 7 is provided at the right end of the temperature tube 5; the joint body 1 passes through the inner hole of the left limiting ring 6 and the inner hole of the right limiting ring 7 at the same time; a left sliding plate 8 and a right sliding plate 9 located on the right side of the left sliding plate 8 are provided between the inner wall of the inner insulation tube 5 and the outer wall of the joint body 1, and the left sliding plate 8 and the right sliding plate 9 are both annular; the outer edge of the left side wall of the left sliding plate 8 is in contact with the right side wall of the left limiting ring 6; the outer edge of the right side wall of the right sliding plate 9 is in contact with the left side wall of the right limiting ring 7; the right side wall of the left sliding plate 8, the left side wall of the right sliding plate 9, the inner wall of the inner insulation tube 5, and the outer wall of the joint body 1 are enclosed to form an annular insulation cavity 10; the insulation cavity 10 is filled with insulation cotton.

[0019] A spring 11 is provided outside the joint body 1 between the right side wall of the left sliding plate 8 and the left side wall of the right sliding plate 9 .

[0020] The edge of the right end hole of the inner hole of the left sliding plate 8 extends to the right to form a left guide tube 12 outside the joint body 1; the edge of the left end hole of the inner hole of the right sliding plate 9 extends to the left to form a right guide tube 13 outside the joint body 1; there is a movable gap 14 between the right end face of the left guide tube 12 and the left end face of the right guide tube 13; the left end of the spring 11 is sleeved on the outside of the left guide tube 12, and the right end of the spring 11 is sleeved on the outside of the right guide tube 13.

[0021] The outer diameter of the right part of the left nut 2 gradually decreases from left to right, and the outer diameter of the right end of the left nut 2 is smaller than the inner diameter of the left limit ring 6; the outer diameter of the left part of the right nut 3 gradually decreases from right to left, and the outer diameter of the left end of the right nut 3 is smaller than the inner diameter of the right limit ring 7.

[0022] There is an anti-collision gap 15 between the inner wall of the left end of the outer insulation tube 4 and the outer wall of the left nut 2; the left end of the outer insulation tube 4 is covered with a sealing cover 16, and the sealing cover 16 is made of rubber; the left inner wall of the sealing cover 16 fits with the left end face of the left nut 2; a through hole 17 is provided in the center of the sealing cover 16, and the inner diameter of the through hole 17 is larger than the inner diameter of the left nut 2.

[0023] The outer wall of the outer insulation pipe 4 has an insulation layer 18; the insulation layer 18 is formed by insulation coating.

[0024] The limiting structure includes a plurality of screw holes 19 evenly arranged on the outer wall of the right nut 3 in a circumferential shape; the outer wall of the right end of the outer insulation pipe 4 is provided with a plurality of grooves 20 corresponding to the positions of the screw holes 19; a limiting hole 21 is provided at the center of the bottom of the groove 20 and is connected to the screw hole 19; a limiting screw 22 passes through the limiting hole 21 and is screwed into the screw hole 19, and the head of the limiting screw 22 is pressed on the bottom of the groove 20.

[0025] The left limiting ring 6 and the left end of the inner thermal insulation pipe 5 , as well as the right limiting ring 7 and the right end of the inner thermal insulation pipe 5 , are fixed by a plurality of fixing screws 23 evenly distributed around the circumference.

[0026] The method of using the utility model is as follows:

[0027] The ports at both ends of the connector body 1 can be used to connect the air-conditioning pipe 24, and the left nut 2 and the right nut 3 both have an extrusion piece 25 set on the outside of the air-conditioning pipe 24. The left nut 2 and the right nut 3 only need to squeeze the extrusion piece 25 through the tightening force of their own threaded connection, so that the air-conditioning pipe 24 can be effectively fixed at the left and right ends of the connector body 1, thereby realizing the connection between the two independent air-conditioning pipes 24.

[0028] The presence of the outer insulation tube 4 and the inner insulation tube 5 can form two layers of insulation on the outer circle of the joint body 1, effectively preventing the outer wall of the joint body 1 from directly contacting the external flowing air and causing the loss of cold and heat. At the same time, the insulation cotton in the insulation cavity between the inner wall of the inner insulation tube 5 and the outer wall of the joint body 1 can form a third layer of insulation, avoiding the loss of cold and heat to the greatest extent, and effectively avoiding the situation where the temperature inside the joint body 1 is too different from the external temperature, resulting in condensation of water droplets on the outer wall of the joint body 1, thereby effectively avoiding the situation where the air conditioner leaks due to condensation of water droplets on the outer wall of the joint body 1. When actually filling the insulation cotton, in order to facilitate the filling of the insulation cotton, the insulation cotton can be cut into pieces for filling.

[0029] During the actual connection process between the air-conditioning pipe 24 and the joint body 1, since the right end of the outer insulation pipe 4 is fixed on the right nut 3, the left nut 2 can be rotated first to tighten it. When the left nut 2 is positioned, the right nut 3 is rotated through the outer wall of the right end of the outer insulation pipe 4. In order to facilitate the rotation of the right nut 3, the outer wall of the right end of the outer insulation pipe 4 can be set into a regular hexagon, which is convenient for the wrench to operate the right end of the outer insulation pipe 4. When the right nut 3 is tightened into place, the outer insulation pipe 4 will be directly fixed to the outside of the joint body 1. At the same time, the left end of the outer insulation pipe 4 is sleeved on the outside of the left nut 2, and there is an anti-collision gap 15 between the inner wall of the left end of the outer insulation pipe 4 and the outer wall of the left nut 2. The anti-collision gap 15 can effectively prevent the inner wall of the outer insulation pipe 4 from colliding with the outer wall of the left nut 2 when it rotates, making it difficult to tighten the right nut 3 into place.

[0030] Since the outer diameter of the right part of the left nut 2 gradually decreases from left to right, the outer diameter of the right end of the left nut 2 is smaller than the inner diameter of the left limiting ring 6, and the outer diameter of the left part of the right nut 3 gradually decreases from right to left, the outer diameter of the left end of the right nut 3 is smaller than the inner diameter of the right limiting ring 7. Therefore, when the left nut 2 moves to the right, the left nut 2 can push the left sliding plate to the right through the inner hole of the left limiting ring 6. When the right nut 3 moves to the left, the right nut 3 can push the right sliding plate 9 to the left through the inner hole of the right limiting ring 7. The distance between the left nut 2 and the right nut 3 is adapted by the displacement of the left sliding plate 8 and the right sliding plate 9, which will not affect the tightening action of the left nut 2 and the right nut 3. The left guide tube 12 can play a guiding role when the left sliding plate 8 slides along the trajectory of the outer wall of the joint body 1, ensuring the stability of the left guide tube 12 when it moves, and the right guide tube 13 can play a guiding role when the right sliding plate 9 slides along the trajectory of the outer wall of the joint body 1, ensuring the stability of the right guide tube 13 when it moves.

[0031] A spring 11 is provided outside the joint body 1 between the right side wall of the left sliding plate 8 and the left side wall of the right sliding plate 9. When the distance between the left sliding plate 8 and the right sliding plate 9 becomes smaller, the spring 11 is compressed and generates elasticity. When the left nut 2 does not squeeze the left sliding plate 8 and the right nut 3 does not squeeze the right sliding plate 9, the spring 11 will reset the left sliding plate 8 and the right sliding plate 9 through its own elasticity.

[0032] A sealing cover 16 is provided on the left end of the outer insulation pipe 4. The sealing cover 16 is made of rubber. The left inner wall of the sealing cover 16 fits with the left end face of the left nut 2. The presence of the sealing cover 16 can seal the anti-collision gap and further avoid the leakage of cold and heat.

[0033] The outer wall of the outer thermal insulation pipe 4 has an insulation layer 18 , which is formed by thermal insulation coating. The presence of the insulation layer 18 can further improve the thermal insulation effect of the outer thermal insulation pipe 4 .

[0034] The limiting structure includes a number of screw holes 19 evenly arranged on the outer wall of the right nut 3 in a circle, and a number of grooves 20 corresponding to the positions of the screw holes 19 are provided on the outer wall of the right end of the outer insulation pipe 4. A limiting hole 21 that penetrates the screw hole 19 is provided at the center of the bottom of the groove 20. A limiting screw 22 passes through the limiting hole 21 and is screwed into the screw hole 19. The head of the limiting screw 22 is pressed on the bottom of the groove 20. This fixing method can not only ensure the stability between the right end of the outer insulation pipe 4 and the right nut 3, but also facilitates the disassembly and assembly between the outer insulation pipe 4 and the right nut 3.

[0035] The left limit ring 6 and the left end of the inner insulation tube 5, and the right limit ring 7 and the right end of the inner insulation tube 5 are fixed by a number of fixing screws 23 evenly distributed around the circumference. This fixing method facilitates the disassembly and assembly between the left limit ring 6, the right limit ring 7 and the inner insulation tube 5, thereby facilitating the disassembly and assembly of the left sliding plate 8 and the right sliding plate 9.

Claims

1. A copper joint for air conditioning pipes with a heat-insulating structure, comprising a joint body, a left nut screwed onto the left end of the joint body, and a right nut screwed onto the right end of the joint body, characterized in that: The joint body is covered with an outer insulation tube coaxial with it; the inner wall of the right end of the outer insulation tube fits with the outer wall of the right nut, and the left end of the outer insulation tube is sleeved on the outside of the left nut; the right end of the outer insulation tube is fixed to the right nut through a limiting structure; an inner insulation tube is provided between the left nut and the right nut, and the outer wall of the inner insulation tube fits with the inner wall of the outer insulation tube; a left limiting ring is provided at the left end of the inner insulation tube; a right limiting ring is provided at the right end of the inner insulation tube; the joint body passes through the inner hole of the left limiting ring, Inner hole of the right limiting ring; a left sliding plate and a right sliding plate located on the right side of the left sliding plate are provided between the inner wall of the inner insulation tube and the outer wall of the joint body, and both the left sliding plate and the right sliding plate are annular; the outer edge of the left side wall of the left sliding plate fits with the right side wall of the left limiting ring; the outer edge of the right side wall of the right sliding plate fits with the left side wall of the right limiting ring; the right side wall of the left sliding plate, the left side wall of the right sliding plate, the inner wall of the inner insulation tube and the outer wall of the joint body are combined to form an annular insulation cavity; the insulation cavity is filled with insulation cotton.

2. The copper joint for air-conditioning pipes with a heat-insulating structure according to claim 1, characterized in that: A spring is provided outside the joint body between the right side wall of the left sliding plate and the left side wall of the right sliding plate.

3. The copper joint for air-conditioning pipes with a heat-insulating structure according to claim 2, characterized in that: The edge of the right end hole of the inner hole of the left sliding plate extends to the right to form a left guide tube outside the joint body; the edge of the left end hole of the inner hole of the right sliding plate extends to the left to form a right guide tube outside the joint body; there is a movable distance between the right end face of the left guide tube and the left end face of the right guide tube; the left end of the spring is sleeved on the outside of the left guide tube, and the right end of the spring is sleeved on the outside of the right guide tube.

4. The copper joint for air-conditioning pipes with a heat-insulating structure according to claim 3, characterized in that: The outer diameter of the right part of the left nut gradually decreases from left to right, and the outer diameter of the right end of the left nut is smaller than the inner diameter of the left limiting ring; the outer diameter of the left part of the right nut gradually decreases from right to left, and the outer diameter of the left end of the right nut is smaller than the inner diameter of the right limiting ring.

5. The copper joint for air-conditioning pipes with a heat-insulating structure according to claim 1, characterized in that: There is an anti-collision gap between the inner wall of the left end of the outer insulation pipe and the outer wall of the left nut; the left end of the outer insulation pipe is covered with a sealing cover, which is made of rubber; the left inner wall of the sealing cover fits with the left end face of the left nut; a through hole is provided in the center of the sealing cover, and the inner diameter of the through hole is larger than the inner diameter of the left nut.

6. The copper joint for air-conditioning pipes with a heat-insulating structure according to claim 1, characterized in that: The outer wall of the outer insulation pipe is provided with an insulation layer; the insulation layer is formed by insulation coating.

7. The copper joint for air-conditioning pipes with a heat-insulating structure according to claim 1, characterized in that: The limiting structure includes a plurality of screw holes evenly arranged on the outer wall of the right nut in a circular shape; the outer wall of the right end of the external insulation pipe is provided with a plurality of grooves corresponding to the positions of the screw holes; a limiting hole that is connected to the screw hole is provided at the center of the bottom of the groove; a limiting screw passes through the limiting hole and is screwed into the screw hole, and the head of the limiting screw is pressed on the bottom of the groove.

8. The copper joint for air-conditioning pipes with a thermal insulation structure according to claim 1, characterized in that: The left limiting ring and the left end of the inner thermal insulation pipe, as well as the right limiting ring and the right end of the inner thermal insulation pipe are fixed by a plurality of fixing screws evenly distributed around the circumference.

Images