Compound tooth profile internal thread red copper pipe

Abstract

The utility model relates to copper pipe processing technical field discloses a kind of composite tooth profile internal thread red copper pipes, including pipe body, the right end of pipe body is provided with connecting mechanism;The connecting mechanism includes the fixed cylinder fixedly connected in the right end of pipe body, the right end outer arc surface of the fixed cylinder is fixedly connected with fixed ring, the inner wall sliding connection of the fixed ring has moving column, the left side fixed connection of pipe body has positioning ring, the left side fixed connection of the positioning ring has thread ring, the right side inner wall fixed connection of pipe body has inner ring, the inner wall of positioning ring is elastically connected with inclined block by connecting spring.This utility model, when two groups of pipe body are inserted, the thread engagement of thread ring and inner ring provides basic connecting force, inclined block is extruded along positioning ring and inserts moving column directional slot, avoid pipe body rotation and looseness;Connecting spring provides elastic reset force, ensure that inclined block and directional slot are closely matched, vibration resistance performance is improved, reduce the occurrence of loose condition.

Description

Technical Field

[0001] This utility model relates to the field of copper pipe processing technology, and in particular to a composite toothed internal thread copper pipe. Background Technology

[0002] Copper tubes are tubular metal products made from pure copper (containing ≥99.9% copper) through processes such as extrusion and stretching. They are named for the purplish-red color that often appears on the surface of copper after oxidation. Their thermal conductivity is over 380W / (m・K), which is 8 times that of steel and 2 times that of aluminum alloy, making them suitable for heat exchange applications.

[0003] When connecting copper pipes, the threads at the ends are used to achieve a quick connection. However, when copper pipes are used in compressor pipelines, the threads are prone to loosening because the compressor generates 10-50Hz vibration. Copper has a low coefficient of friction, and the threaded pair gradually loosens under fretting wear. In addition, copper has low hardness, and the threading process weakens the pipe wall strength. Under vibration, stress concentration exacerbates the loosening, leading to connection failure. To address these issues, a composite toothed internal thread copper pipe is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a composite toothed internal thread copper tube, which aims to improve the problem in the prior art where copper tubes used in compressor pipelines fail due to vibration generated during compressor operation and the low friction coefficient of copper causing fretting wear and loosening of the thread pair.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a composite toothed internal thread copper tube, comprising a tube body, wherein a connecting mechanism is provided at the right end of the tube body;

[0006] The connecting mechanism includes a fixed cylinder fixedly connected to the right end of the tube body, a fixed ring fixedly connected to the outer arc surface of the right end of the fixed cylinder, a movable column slidably connected to the inner wall of the fixed ring, a positioning ring fixedly connected to the left side of the tube body, a threaded ring fixedly connected to the left side of the positioning ring, an inner ring fixedly connected to the inner wall of the right side of the tube body, an inclined block elastically connected to the inner wall of the positioning ring via a connecting spring, a positioning element provided at the top of the tube body, and a composite component provided on the inner wall of the tube body.

[0007] As a further description of the above technical solution:

[0008] The positioning element includes a display block that is fixedly connected to the top of the tube.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the threaded ring is threaded to the inner wall of the inner ring.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the inclined block is slidably connected to the inner wall of the positioning ring.

[0013] As a further description of the above technical solution:

[0014] The top of the inclined block has an inclined surface, which is set to the left.

[0015] As a further description of the above technical solution:

[0016] The movable column has an directional groove inside, and the top of the inclined block is inserted into the inner wall of the directional groove.

[0017] As a further description of the above technical solution:

[0018] The side of the movable column facing the inner ring contacts the inclined surface of the inclined block.

[0019] As a further description of the above technical solution:

[0020] The composite component includes a hemisphere, and the inner wall of the tube is provided with a threaded groove, and the hemisphere is fixedly connected to the inner wall of the threaded groove.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the mutual cooperation between the set tube body and its connecting mechanism and other structures, when the two sets of tube bodies are inserted, the thread engagement between the threaded ring and the inner ring provides the basic connection force. After the inclined block is squeezed, it slides along the positioning ring and inserts into the directional groove of the moving column, preventing the tube body from rotating and loosening. The connecting spring provides elastic restoring force to ensure that the inclined block and the directional groove are tightly fitted, improving the vibration resistance and reducing the occurrence of loosening.

[0023] 2. In this utility model, through the mutual cooperation between the composite components and other structures, the heat transfer area of ​​the inner wall threaded groove is increased, and the hemispherical and three-dimensional protruding structures improve the heat transfer coefficient by breaking the laminar boundary layer and dispersing fluid particles or bubbles. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a composite toothed internal thread copper tube proposed in this utility model.

[0025] Figure 2 This is a three-dimensional schematic diagram of the threaded ring of a composite toothed internal thread copper tube proposed in this utility model.

[0026] Figure 3 A cross-sectional internal schematic diagram of a fixing ring and a positioning ring for a composite toothed internal thread copper tube proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the internal cross-section of a composite toothed internal thread copper tube proposed in this utility model.

[0028] Legend:

[0029] 1. Pipe body; 2. Connecting mechanism; 201. Fixed cylinder; 202. Fixed ring; 203. Moving column; 204. Threaded ring; 205. Connecting spring; 206. Display block; 207. Inner ring; 208. Inclined block; 209. Positioning ring; 3. Composite component; 301. Threaded groove; 302. Hemisphere. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-2 The present invention provides an embodiment of a composite toothed internal thread copper tube, comprising a tube body 1, wherein the tube body 1 is a copper tube, and a connecting mechanism 2 is provided at the right end of the tube body 1; the connection mechanism 2 facilitates the connection and installation of the tube body 1.

[0032] Reference Figures 2-4 The connecting mechanism 2 includes a fixed cylinder 201 fixedly connected to the right end of the pipe body 1. A fixed ring 202 is fixedly connected to the outer arc surface of the right end of the fixed cylinder 201. The diameter of the fixed ring 202 is larger than the diameter of the fixed cylinder 201. A movable column 203 is slidably connected to the inner wall of the fixed ring 202. Two sets of movable columns 203 are provided, located on the upper and lower sides of the fixed ring 202 respectively. A horizontal plate is provided on the top of the movable column 203. A positioning ring 209 is fixedly connected to the left side of the pipe body 1. A threaded ring 204 is fixedly connected to the left side of the positioning ring 209. The design facilitates the connection of two sets of tubes 1. An inner ring 207 is fixedly connected to the inner wall of the right side of tube 1. The inner ring 207 has an internal thread. The inner wall of the positioning ring 209 is elastically connected to the inclined block 208 through the connecting spring 205. The elasticity of the connecting spring 205 enables the inclined block 208 to have the functions of reset and limit. A positioning component is provided at the top of tube 1. The positioning component cooperates with the moving column 203 to facilitate the connection of tube 1. A composite component 3 is provided on the inner wall of tube 1. The heat exchange efficiency can be enhanced by the composite component 3.

[0033] Reference Figures 2-4The positioning component includes a display block 206 fixedly connected to the top of the tube body 1. When installing and connecting two sets of tube bodies 1, the two sets of tube bodies 1 need to be inserted together. At this time, the top horizontal plate of the moving column 203 is in a vertical state, while the display block 206 is not in a vertical state but in an inclined state. The outer wall of the threaded ring 204 is threadedly connected to the inner wall of the inner ring 207. After the two sets of tube bodies 1 are inserted, the inclined block 208 will move towards the middle, and then one set of tube bodies 1 can be screwed. The outer wall of the inclined block 208 is slidably connected to the inner wall of the positioning ring 209. The sliding setting avoids movement interference. The top of the inclined block 208 is open. An inclined surface is provided, facing left, to facilitate the insertion of two sets of tubes 1. A directional groove is provided inside the moving column 203, and the top of the inclined block 208 is inserted into the inner wall of the directional groove. The insertion of the two can prevent the tubes 1 from rotating, thereby improving the stability between the two sets of tubes 1. The side of the moving column 203 facing the inner ring 207 contacts the inclined surface of the inclined block 208. When the two sets of moving columns 203 are moved to the right, they will contact and squeeze the inclined block 208, causing the two sets of inclined blocks 208 to move towards the middle, thereby causing the inclined block 208 to disengage from the directional groove. This allows the two sets of tubes 1 to be screwed on for disassembly.

[0034] Reference Figure 4 The composite component 3 includes a hemisphere 302. The inner wall of the tube 1 is provided with a threaded groove 301. The threaded groove 301 can increase the inner wall surface area, thereby enhancing the heat exchange efficiency. The hemisphere 302 is fixedly connected to the inner wall of the threaded groove 301. The hemisphere 302 has a dispersing effect on particles or bubbles in the fluid, which can avoid impurity deposition and gas-liquid separation, reduce the risk of scaling and improve the uniformity of gas-liquid two-phase flow. At the same time, the rounded shape of the hemisphere 302 generates a relatively small increase in resistance when disturbing the fluid. Compared with the sharp-edged protruding structure, it can better balance the flow resistance while enhancing heat transfer, which is especially suitable for scenarios with dual requirements for heat exchange efficiency and flow resistance control.

[0035] Working principle: When the two sets of tubes 1 are inserted, the top horizontal plate of the moving column 203 is in a vertical state, and the display block 206 is tilted. At this time, the outer wall of the threaded ring 204 is threadedly engaged with the inner wall of the inner ring 207. During the insertion process, the inclined block 208 is squeezed and moves towards the middle. Twisting the tube 1 causes the outer wall of the inclined block 208 to slide along the inner wall of the positioning ring 209 until its top inclined surface is inserted into the directional groove of the moving column 203, preventing the tube 1 from rotating. The connecting spring 205 provides elastic restoring force to limit the position (at this time, the display block 206 and the moving column 203 are on the same horizontal plane). When disassembling, moving the moving column 203 to the right will squeeze the inclined block 208 out of the directional groove, and then it can be twisted and disassembled.

[0036] Meanwhile, the composite component 3 on the inner wall enhances heat exchange: the threaded groove 301 increases the surface area of ​​the inner wall, and the hemispherical 302 on its inner wall uses a rounded arc surface to break the laminar boundary layer of the fluid, promote turbulence to improve heat exchange efficiency. The three-dimensional convex structure increases the heat transfer and disperses particles or bubbles in the fluid, avoiding impurity deposition and gas-liquid separation. At the same time, the rounded shape balances the flow resistance, making it suitable for scenarios with dual requirements of heat exchange and flow resistance control.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite profiled internal thread red copper pipe comprising a pipe body (1), characterized in that: A connecting mechanism (2) is provided at the right end of the tube body (1); The connecting mechanism (2) includes a fixed cylinder (201) fixedly connected to the right end of the tube body (1). A fixed ring (202) is fixedly connected to the outer arc surface of the right end of the fixed cylinder (201). A movable column (203) is slidably connected to the inner wall of the fixed ring (202). A positioning ring (209) is fixedly connected to the left side of the tube body (1). A threaded ring (204) is fixedly connected to the left side of the positioning ring (209). An inner ring (207) is fixedly connected to the inner wall of the right side of the tube body (1). An inclined block (208) is elastically connected to the inner wall of the positioning ring (209) through a connecting spring (205). A positioning component is provided at the top of the tube body (1). A composite component (3) is provided on the inner wall of the tube body (1).

2. A composite serrated internal thread red copper pipe according to claim 1, characterized in that: The positioning element includes a display block (206) fixedly connected to the top of the tube body (1).

3. A composite serrated internal thread red copper pipe according to claim 1, characterized in that: The outer wall of the threaded ring (204) is threaded to the inner wall of the inner ring (207).

4. A composite serrated internal thread red copper pipe according to claim 1, characterized in that: The outer wall of the inclined block (208) is slidably connected to the inner wall of the positioning ring (209).

5. A composite serrated internal thread red copper pipe according to claim 1, characterized in that: The top of the inclined block (208) has an inclined surface, which is set to the left.

6. A composite serrated internal thread red copper pipe according to claim 1, characterized in that: The movable column (203) has an directional groove inside, and the top of the inclined block (208) is inserted into the inner wall of the directional groove.

7. A composite serrated internal thread copper pipe according to claim 1, characterized in that: The movable column (203) contacts the inclined surface of the inclined block (208) on the side facing the inner ring (207).

8. A composite serrated internal thread copper pipe according to claim 1, characterized in that: The composite component (3) includes a hemisphere (302), and the inner wall of the tube (1) is provided with a threaded groove (301), and the inner wall of the threaded groove (301) is fixedly connected to the hemisphere (302).

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