Fin base tube based on laser welding

Abstract

The utility model provides a finned base tube based on laser welding, which relates to the technical field of finned base tubes and comprises a finned tube body. The two sides of the front end of the finned tube body are each provided with a connector, the front end of the finned tube body is inserted into the limiting frame, a strip-shaped sliding groove is formed in the front end of the limiting frame, a protruding plate is fixedly connected to the middle of the interior of the strip-shaped sliding groove of the limiting frame, and a rotating hole is formed in the middle of the side face of the protruding plate. When the two-way screw rod piece rotates, the two driving sliding blocks and the auxiliary sliding blocks are matched to achieve the stretching or gathering effect on the front end position of the finned tube body, the distance between two connectors at the front end of the limited finned tube body is adjusted, and butt joint operation of the two connectors is facilitated. The problems that when an existing laser welding finned tube is used, the two ends of the existing laser welding finned tube are prone to being affected by external force and temperature changes to cause bending deformation, dragging stress exists when the laser welding finned tube is in butt joint, and installation and disassembly are not convenient are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fin base tubes, and more specifically, relates to a fin base tube based on laser welding. Background Art

[0002] Laser welded fin tubes, also known as laser welded fin base tubes, are heat exchange elements that are made by tightly combining fins and base tubes through laser welding technology. They have broad application prospects and unique advantages. Laser welded fin tubes have been widely used in refrigeration, energy, chemical industry and other industries due to their excellent performance advantages.

[0003] Application No. CN202020980630.0 This utility model discloses a laser-welded fin tube, which includes a heat exchange component, a base tube, a connecting tube, annular fins, rectangular fins, an air inlet, an air outlet, and a filter screen. This utility model provides a laser-welded fin tube and a production process thereof, which has a reasonable structural design and simple process operation, and effectively produces the laser-welded fin tube. This utility model adopts a laser welding process, which has high weld penetration and low heat transfer resistance. The curved connection in the laser-welded fin tube is optimized, making the laser-welded fin tube easy to disassemble and assemble. The combination of annular fins and rectangular fins not only increases the heat transfer area, but also provides support for the laser-welded fin tube when it is placed horizontally. During the production process, an anti-corrosion coating is applied to the inner and outer surfaces of the laser-welded fin tube to increase its service life. This utility model has high practicality.

[0004] Based on the search of the above patents and the understanding of the application of existing laser-welded fin base tubes: When the current laser-welded fin tubes are in use, the two ends are easily affected by external forces and temperature changes, resulting in bending and deformation. There is pulling stress when the laser-welded fin tubes are butt-jointed, which makes it inconvenient to install and disassemble. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a fin base tube based on laser welding to solve the problems that the two ends of the existing laser welded fin tubes are easily affected by external forces and temperature changes during use, resulting in bending and deformation, and there is pulling stress when the laser welded fin tubes are butt-jointed, which makes it inconvenient to install and disassemble.

[0006] The technical solution adopted by this utility model is:

[0007] A fin base tube based on laser welding includes a fin tube body; the fin tube body is designed in a W shape, and a joint is provided on both sides of the front end of the fin tube body, the front end position of the fin tube body is inserted into the internal position of the limit frame, the front end position of the limit frame is provided with a strip slide, and a convex plate is fixedly connected to the middle position of the strip slide of the limit frame, a rotating hole is provided in the middle position of the side of the convex plate, and a bidirectional screw member is rotatably connected in the rotating hole of the convex plate, the middle position of the bidirectional screw member is located in the middle position of the rotating hole of the convex plate, the threads on the left and right sides of the bidirectional screw member are symmetrically designed, and the bidirectional screw member is located directly in front of the limit frame.

[0008] According to an embodiment of the present invention, an active sliding block is slidably connected to the left and right sides of the limiting frame respectively, and the two active sliding blocks are symmetrically designed and distributed on the left and right sides of the convex plate.

[0009] According to an embodiment of the present invention, a semicircular groove is provided on the outer side of each active sliding block, and a matching piece is fixedly connected to the inner side of the front end of each active sliding block.

[0010] According to one embodiment of the present invention, the two mating parts are symmetrically designed, and the two mating parts are respectively located on the left and right sides of the convex plate. A threaded hole is provided in the middle position of the side of each mating part. The threaded holes of the two mating parts are symmetrically designed, and the threaded holes of the two mating parts are designed in the same straight line as the rotating holes of the convex plate.

[0011] According to an embodiment of the present invention, the left and right sides of the bidirectional screw member are respectively located in a threaded hole of a matching member.

[0012] According to one embodiment of the present invention, the outer position of each of the active sliding blocks is fixedly connected to the inner position of an auxiliary sliding block through the cooperation of bolts, and a semicircular groove is provided at the inner middle position of the auxiliary sliding block. The semicircular groove of the auxiliary sliding block and the semicircular groove of the active sliding block together form a circular shape, and the positions on both sides of the front end of the fin tube body are located in the semicircular groove of the auxiliary sliding block and the semicircular groove of the active sliding block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the bidirectional screw rotates, the two active sliding blocks cooperate with the auxiliary sliding blocks to stretch or gather the front end of the fin tube body, adjust the distance between the two joints at the front end of the limit fin tube body, and facilitate the docking operation of the two joints, so as to avoid the bending deformation of the two ends of the laser welded fin tube due to external force and temperature changes, which affects the docking of the front end of the fin tube body.

[0015] 2. When the bidirectional screw does not rotate, the active sliding block fixedly connected to the matching piece will not slide on both sides of the front end of the limit frame, thereby limiting the position of the joints on both sides of the front end of the fin tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the top view structure of the laser welded fin base tube of the present invention.

[0017] Figure 2 It is a side view structural schematic diagram of the laser welded fin base tube of the present invention.

[0018] Figure 3 This is a schematic diagram of the top view of the disassembled overall parts of the limit frame of the utility model.

[0019] Figure 4 It is a side view structural diagram of the disassembled integral parts of the limit frame of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0021] 1. Fin tube body; 101. Joint; 2. Limiting frame; 201. Convex plate; 202. Bidirectional screw member; 203. Active sliding block; 204. Matching member; 205. Auxiliary sliding block; 206. Bolt member. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by ordinary technicians in the field to which the present invention belongs. Similar words such as "one", "an" or "the" used in the specification and claims of the present utility model patent application do not indicate quantity limitations, but rather indicate the existence of at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0024] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0025] Example 1:

[0026] As attached Figure 1 To the attached Figure 4 As shown:

[0027] The utility model provides a fin base tube based on laser welding, comprising a fin tube body 1; the fin tube body 1 is designed in a W shape, and a joint 101 is provided on both sides of the front end of the fin tube body 1, the front end position of the fin tube body 1 is inserted into the internal position of the limit frame 2, the front end position of the limit frame 2 is provided with a strip slide, and the middle position of the strip slide of the limit frame 2 is fixedly connected with a convex plate 201, a rotating hole is provided at the middle position of the side of the convex plate 201, and a bidirectional screw member 202 is rotatably connected in the rotating hole of the convex plate 201, the middle position of the bidirectional screw member 202 is located at the middle position of the rotating hole of the convex plate 201, the threads of the left and right sides of the bidirectional screw member 202 are symmetrically designed, and the bidirectional screw member 202 is located in the front position of the limit frame 2, and the left and right sides of the limit frame 2 are respectively slidably connected with an active sliding block 203, and the two active sliding blocks 203 are symmetrically designed and distributed at the left and right sides of the convex plate 201, and the outer position of each active sliding block 203 The two engaging members 204 are symmetrically designed, and the two engaging members 204 are respectively located on the left and right sides of the convex plate 201. A threaded hole is provided in the middle position of the side of each engaging member 204. The threaded holes of the two engaging members 204 are symmetrically designed, and the threaded holes of the two engaging members 204 are designed in the same straight line as the rotating hole of the convex plate 201. The left and right sides of the bidirectional screw member 202 are respectively located in the threaded hole of a engaging member 204; when the bidirectional screw member 202 is rotated, the bidirectional screw member 202 cooperates with the threaded holes of the two engaging members 204, so that the two active sliding blocks 203 can slide and adjust the opposite positions in the strip slide groove of the limit frame 2, which can play the effect of synchronously adjusting the distance between the two active sliding blocks 203. The forward and reverse rotation of the bidirectional screw member 202 can adjust the reduction and increase of the distance between the two active sliding blocks 203.

[0028] Among them, the outer position of each active sliding block 203 is fixedly connected to the inner position of an auxiliary sliding block 205 by the cooperation of bolt parts 206, and a semicircular groove is provided at the middle position of the inner side of the auxiliary sliding block 205. The semicircular groove of the auxiliary sliding block 205 and the semicircular groove of the active sliding block 203 together form a circular shape. The front end positions of the fin tube body 1 are both located in the semicircular grooves of the auxiliary sliding block 205 and the semicircular grooves of the active sliding block 203; after the front end positions of the fin tube body 1 are inserted into the interior of the limit frame 2, the active sliding block 203 is fixedly connected to the inner position of the auxiliary sliding block 205 by the cooperation of the bolt parts 206, and the semicircular groove of the auxiliary sliding block 205 is provided. The movable blocks 203 slide away from each other until the semicircular grooves on the outside of the active sliding block 203 fit the two sides of the front end of the fin tube body 1 respectively. Next, the inner positions of the two auxiliary sliding blocks 205 are fit with the outer positions of the active sliding block 203 respectively, and then the active sliding block 203 and the auxiliary sliding block 205 are fixed by the bolt member 206. When the bidirectional screw member 202 rotates, the two active sliding blocks 203 cooperate with the auxiliary sliding block 205 to stretch or gather the front end position of the fin tube body 1, adjust the distance between the two joints 101 at the front end of the limit fin tube body 1, and facilitate the docking operation of the two joints 101.

[0029] Although the present application has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the concept and scope of the present application as defined in the appended claims. Although this specification contains many specific implementation details, these should not be interpreted as limitations on the scope of protection claimed in this application, but rather as descriptions of features specific to specific embodiments. The scope of this application is defined by the appended claims and their equivalents, and is not limited to the embodiments described above.

Claims

1. A finned base tube based on laser welding, characterized in that: The invention comprises a fin tube body (1); the fin tube body (1) is designed in a W shape, and a joint (101) is provided on both sides of the front end of the fin tube body (1); the front end of the fin tube body (1) is plugged into the inner position of the limiting frame (2), and the front end of the limiting frame (2) is provided with a strip-shaped sliding groove; A convex plate (201) is fixedly connected to the middle position of the strip-shaped slide groove of the limiting frame (2), a rotating hole is opened in the middle position of the side surface of the convex plate (201), and a bidirectional screw member (202) is rotatably connected to the rotating hole of the convex plate (201); The middle position of the bidirectional screw member (202) is located in the middle position of the rotating hole of the convex plate (201), the threads on the left and right sides of the bidirectional screw member (202) are symmetrically designed, and the bidirectional screw member (202) is located in front of the limiting frame (2).

2. The laser-welded finned tube according to claim 1, characterized in that: An active sliding block (203) is slidably connected to the left and right sides of the limiting frame (2), respectively. The two active sliding blocks (203) are symmetrically designed and distributed on the left and right sides of the convex plate (201).

3. The laser-welded finned tube according to claim 2, characterized in that: A semicircular groove is provided at the outer side of each active sliding block (203), and a matching piece (204) is fixedly connected to the inner side of the front end of each active sliding block (203).

4. The laser-welded finned tube according to claim 3, characterized in that: The two mating parts (204) are symmetrically designed, and the two mating parts (204) are respectively located on the left and right sides of the convex plate (201). A threaded hole is provided in the middle of the side of each mating part (204). The threaded holes of the two mating parts (204) are symmetrically designed, and the threaded holes of the two mating parts (204) are designed in the same straight line as the rotating hole of the convex plate (201).

5. The laser-welded finned tube according to claim 1, characterized in that: The left and right sides of the bidirectional screw member (202) are respectively located in a threaded hole of a matching member (204).

6. The laser-welded finned tube according to claim 3, characterized in that: The outer side of each active sliding block (203) is fixedly connected to the inner side of an auxiliary sliding block (205) by means of a bolt (206); a semicircular groove is provided at the inner middle of the auxiliary sliding block (205); the semicircular groove of the auxiliary sliding block (205) and the semicircular groove of the active sliding block (203) together form a circular shape; the front ends of the fin tube body (1) are both located in the semicircular groove of the auxiliary sliding block (205) and the semicircular groove of the active sliding block (203).

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