Finned heat exchanger of air conditioner refrigeration equipment

Abstract

The invention belongs to the technical field of radiators, and provides a finned heat exchanger of air conditioner refrigeration equipment, which comprises a radiator shell, a plurality of groups of sliding blocks are arranged on two groups of symmetrical side walls in the radiator shell, mounting rods are fixedly mounted on the surfaces, close to each other, of the sliding blocks on the two sides, and mounting cylinders are slidably mounted on the mounting rods; elastic pieces are fixedly mounted on the side faces of the sliding blocks, the ends, away from the sliding blocks, of the elastic pieces are fixedly connected with mounting cylinders, and mounting plates are rotationally mounted at the ends, away from the sliding blocks, of the mounting cylinders. Compared with the prior art, the heat dissipation device has the following beneficial effects that the rotating angle of the bent pipe is adjusted according to the number of the transverse pipes needing to be increased, the heat dissipation capacity of the heat dissipation device can be improved through the additionally arranged transverse pipes and the heat dissipation fins, and different numbers of transverse pipes can be arranged according to actual use requirements; and the matching degree of the heat dissipation capacity of the equipment and actual use requirements is further improved, and the practicability and flexibility of equipment use are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of radiators, and in particular relates to a finned heat exchanger for air-conditioning and refrigeration equipment. Background Art

[0002] Finned radiator is the most widely used heat exchange equipment in gas and liquid heat exchangers. It achieves the purpose of enhancing heat transfer by adding fins to ordinary base tubes. The base tubes can be made of steel tubes, stainless steel tubes, copper tubes, etc., and the fins can also be made of steel strips, stainless steel strips, copper strips, aluminum strips, etc.

[0003] Most of the existing radiators have fixed copper tube shapes and fixed fins, and most of the fins are installed on the copper tubes by welding. When the actual heat dissipation requirements do not match the heat dissipation capacity of the radiator, it is inconvenient to adjust the number and position of the copper tubes and the number and position of the heat dissipation fins, thereby reducing the flexibility of equipment use and the degree of matching between the equipment's heat dissipation capacity and actual use requirements is low. Summary of the invention

[0004] The object of the present invention is to provide a finned heat exchanger for air-conditioning and refrigeration equipment, aiming to solve the technical problems in the prior art that the equipment has low flexibility in use and the degree of matching between the equipment's heat dissipation capacity and actual use requirements is low.

[0005] The present invention is achieved as follows: a fin-type heat exchanger for an air-conditioning and refrigeration equipment comprises a radiator shell, and multiple groups of sliders are arranged on two groups of symmetrical side walls in the radiator shell, and mounting rods are fixedly installed on the surfaces of the sliders on both sides that are close to each other, and a mounting cylinder is slidably installed on the mounting rods, and elastic parts are fixedly installed on the sides of the sliders, and the ends of the elastic parts away from the sliders are fixedly connected to the mounting cylinders, and the mounting plates are rotatably installed on the ends of the mounting cylinders away from the sliders, the mounting plates are quasi-U-shaped structures, and an arc-shaped positioning groove is opened on one side wall of the mounting plate, and a semicircular bent pipe is arranged in the positioning groove, and the corresponding ends of the bent pipes on both sides are commonly connected with a cross pipe, and inlet pipes and outlet pipes are fixedly installed on the symmetrical side walls on the radiator shell, and the inlet pipes and outlet pipes are respectively connected to the corresponding cross pipes, and the cross pipes are provided with heat fins.

[0006] Further technical solution: the radiator shell is a frame-shaped structure and guide rails are fixedly installed on two symmetrical sets of side walls of the radiator shell. The guide rail cross-section is T-shaped and the slider is slidably installed on the guide rail. A gap is provided between one end of the guide rail and the inner wall of the radiator shell for placing the slider, and a third fixing screw is threadedly installed on the slider.

[0007] Further technical solution: A support plate is fixedly installed on the surface of the mounting plate close to the slider, and a second fixing screw is threadedly installed on the support plate, and the second fixing screw is distributed along the radial direction of the mounting tube.

[0008] Further technical solution: A first fixing screw is threadedly connected on the side wall of the mounting plate away from the positioning slot, the first fixing screw points to the positioning slot, and a pressure plate is fixedly installed on one end of the first fixing screw close to the positioning slot.

[0009] Further technical solution: the curved pipe and the transverse pipe are connected by a connecting tube, both ends of the connecting tube are rotatably installed with connecting heads, the connecting heads at both ends are respectively connected to the curved pipe and the transverse pipe, and the transverse pipe is connected to the inlet pipe and the outlet pipe through the connecting tube.

[0010] Further technical solution: A semicircular connecting plate is provided on the transverse tube, the heat dissipation fins are fixedly mounted on the connecting plate and are semicircular, permanent magnets are fixedly mounted at both ends of the connecting plate, two sets of corresponding connecting plates form a complete circular structure around the transverse tube, and the two sets of connecting plates are fixedly connected by permanent magnets.

[0011] Further technical solution: A support ring is provided on the transverse tube, and the support ring is coaxially arranged with the transverse tube. Multiple groups of rollers are rotatably installed in the support ring, and the multiple groups of rollers are distributed in a circular array around the axis of the support ring. The rollers are in rolling contact with the outer surface of the transverse tube. The support ring is installed on the transverse tube through the rollers, and two groups of symmetrically distributed support rods are rotatably installed on the support ring. The cross-section of the support rods is a non-circular structure. The support rods pass through the heat dissipating fins, and the heat dissipating fins are provided with through holes for the support rods to pass through.

[0012] Further technical solution: A fixing frame is slidably mounted on one group of the support rods, the fixing frame is L-shaped and one side wall of the fixing frame is parallel to the support rod, and a limiting block is fixedly mounted on one end of the fixing frame away from the support ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When the heat dissipation capacity needs to be increased, the second fixing screw is turned to release the fixation of the second fixing screw on the mounting plate, and the fixation of the slider is released at the same time, and then the connection between the outlet pipe and the cross pipe is released. At this time, each group of bent pipes is rotated in turn, and the cross pipe is driven to move synchronously when the bent pipe rotates. When the bent pipe rotates, the width it occupies along the length direction of the guide rail is reduced, and the bent pipe and the cross pipe can be distributed in a wave shape on the radiator shell. At this time, the slider can be continued to be added into the radiator shell, and then the cross pipe can be continued to be added. According to the number of cross pipes to be added, the angle of rotation of the bent pipe is adjusted. The heat dissipation capacity of the equipment can be increased by adding cross pipes and heat dissipation fins, and different numbers of cross pipes can be set according to actual use requirements, so as to further improve the matching degree between the heat dissipation capacity of the equipment and the actual use requirements, and improve the practicality and flexibility of equipment use.

[0014] 2. Before installing the cross tube, first install the support ring on the cross tube through the roller. When installing the heat dissipation fins, install the heat dissipation fins through the through holes to the set positions on the support rods, and make the opening of the connecting plate face the side where the cross tube is located. Then push the two sets of support rods to rotate so that the connecting plate contacts the outer surface of the cross tube. When the support rods are parallel to the cross tube, the connecting plate contacts the surface of the cross tube. At this time, the two sets of connecting plates at corresponding positions contact and are adsorbed and fixed to each other under the action of permanent magnets. The heat dissipation fins can be installed on the cross tube by connecting and fixing multiple sets of connecting plates to each other. A set number of heat dissipation fins can be installed on the support rods according to the needs of heat dissipation capacity. The number of heat dissipation fins can be increased or decreased on the cross tube later, which further improves the flexibility of adjusting the heat dissipation capacity of the equipment and can be conveniently adjusted according to actual use.

[0015] 3. When adding or reducing the heat sink fins later, the staff pinches the fixing frame and the support rod where the fixing frame is located with their fingers until the limit block contacts the support rod. At this time, the fixing frame is in contact with the surface of the heat sink fin and fixed. The limit block prevents the fixing frame from exerting a large force on the heat sink fin to cause damage to the heat sink fin. Then, the support rod can be pulled away from the cross tube to rotate. At this time, the connecting plate on the other set of support rods contacts the cross tube. Then, the connecting plate on the set of support rods can be separated from the cross tube. At this time, the heat sink fins can be added or reduced. The fixing frame is used to ensure that the position of the heat sink fins on the rotating support rod is stable to avoid heat sinking. The position of the hot fins does not correspond to the position of the cooling fins on the other set of support rods, avoiding subsequent readjustment and increasing the speed of adjusting the number of cooling fins. When increasing the number of cross tubes causes the front cooling fins to block the position of the rear cooling fins, repeat the above steps to disengage the connecting plate on the support rod where the fixing frame is located from the cross tube, and then rotate the other set of support plates to disengage the connecting plate from the cross tube. Subsequent staff use the two sets of support rods to push the support ring on the cross tube to move a set distance, so that the positions of the cooling fins on the two sets of cross tubes that affect each other are staggered, thereby ensuring that the air can flow through the cooling fins stably and fully, thereby ensuring the heat dissipation capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is the front view in the present invention.

[0018] Figure 3 It is a structural schematic diagram of the mounting plate in the present invention.

[0019] Figure 4 for Figure 2 A magnified schematic diagram of the A1 region in the middle.

[0020] Figure 5 for Figure 2 A magnified schematic diagram of the A2 region in the middle.

[0021] Figure 6 It is a schematic structural diagram of the heat dissipation fin in the present invention from a first viewing angle.

[0022] Figure 7 It is a schematic structural diagram of the heat dissipation fin in the present invention from a second viewing angle.

[0023] Figure 8 for Figure 7 A magnified schematic diagram of the A3 region in the middle.

[0024] Fig. 9 for Figure 7 Schematic diagram of the enlarged A4 region.

[0025] In the accompanying drawings: 1. radiator housing; 2. guide rail; 3. slider; 4. mounting rod; 5. mounting cylinder; 6. elastic member; 7. mounting plate; 8. positioning groove; 9. first fixing screw; 10. pressure plate; 11. bent pipe; 12. connecting cylinder; 13. connecting head; 14. transverse pipe; 15. inlet pipe; 16. outlet pipe; 17. support plate; 18. second fixing screw; 19. support ring; 20. roller; 21. support rod; 22. connecting plate; 23. cooling fin; 24. permanent magnet; 25. through hole; 26. fixing frame; 27. limit block; 28. third fixing screw. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0028] like Figure 1-Figure 9As shown, a fin heat exchanger for air-conditioning and refrigeration equipment provided by the present invention comprises a radiator shell 1, and a plurality of sliders 3 are arranged on two groups of symmetrical side walls in the radiator shell 1. The radiator shell 1 is a frame-shaped structure and guide rails 2 are fixedly installed on the two groups of symmetrical side walls of the radiator shell 1. The guide rails 2 have a T-shaped cross section and the sliders 3 are slidably installed on the guide rails 2. A gap for placing the sliders 3 is arranged between one end of the guide rail 2 and the inner wall of the radiator shell 1. A third fixing screw 28 is threadedly installed on the slider 3. Mounting rods 4 are fixedly installed on the surfaces of the sliders 3 on both sides that are close to each other. The mounting rods 4 have a non-circular cross section. A mounting cylinder 5 is slidably installed on the mounting rods 4. An elastic member 6 is fixedly installed on the side of the slider 3. The end of the elastic member 6 away from the slider 3 is fixedly connected to the mounting cylinder 5. The end of the mounting cylinder 5 away from the slider 3 is rotatably installed with a mounting plate 7. The mounting plate 7 is a U-shaped structure and an arc-shaped positioning groove 8 is provided on one side wall of the mounting plate 7. The mounting plate 7 is close to the slider A support plate 17 is fixedly installed on the surface of 3, and a second fixing screw 18 is threadedly installed on the support plate 17. The second fixing screw 18 is distributed along the radial direction of the mounting tube 5. A first fixing screw 9 is threadedly connected on the side wall of the mounting plate 7 away from the positioning groove 8, and the first fixing screw 9 points to the positioning groove 8. A pressing plate 10 is fixedly installed on one end of the first fixing screw 9 close to the positioning groove 8. A semicircular elbow 11 is arranged in the positioning groove 8, and the corresponding ends of the elbows 11 on both sides are commonly connected with a cross tube 14. An inlet pipe 15 and an outlet pipe 16 are fixedly installed on the symmetrical side walls of the radiator housing 1. The inlet pipe 15 and the outlet pipe 16 are respectively connected to the corresponding cross tube 14. The elbow 11 and the cross tube 14 are connected through a connecting tube 12. Connectors 13 are rotatably installed at both ends of the connecting tube 12. The connectors 13 at both ends are respectively connected to the elbow 11 and the cross tube 14. The cross tube 14 is connected to the inlet pipe 15 and the outlet pipe 16 through the connecting tube 12, and a heat dissipation fin 23 is arranged on the cross tube 14.

[0029] In actual application of this embodiment, the bent pipe 11 is placed in the positioning groove 8, and then the first fixing screw 9 is rotated to drive the pressure plate 10 to move, and the bent pipe 11 is pressed tightly in the positioning groove 8 by the pressure plate 10. After the installation of the bent pipe 11 is completed, the slider 3 is installed to the set position on the guide rail 2 and fixed by the third fixing screw 28, and then the two sets of connecting tubes 12 are installed to the two ends of the cross tube 14 through the connecting head 13. After the installation is completed, the cross tube 14 is connected to the bent pipes 11 on both sides through the connecting tubes 12 at both ends of the cross tube 14. The bent pipe 11 When connected with the transverse tube 14, the mounting plate 7 is pushed to move in the direction close to the guide rail 2, thereby leaving space for the elbow 11 to be connected with the connector 13. After the transverse tube 14 is connected with the elbow 11, the elastic member 6 pushes the mounting plate 7 to reset. Finally, the transverse tubes 14 at both ends are respectively connected with the inlet pipe 15 and the outlet pipe 16 through the connecting tube 12. The inlet pipe 15 and the outlet pipe 16 are hoses. At this time, a complete pipeline can be formed through the inlet pipe 15, the outlet pipe 16, the transverse tube 14 and the elbow 11, and then the heat dissipation fins 23 can be installed on the transverse tube 14. When the heat dissipation capacity needs to be increased, the second fixing screw 18 is rotated to release the fixing of the second fixing screw 18 to the mounting plate 7, and the fixing of the slider 3 is released at the same time, and then the connection between the outlet pipe 16 and the transverse pipe 14 is released. At this time, each group of bent pipes 11 is rotated in turn. When the bent pipe 11 rotates, the transverse pipe 14 is driven to move synchronously. When the bent pipe 11 rotates, the width occupied by the bent pipe 11 along the length direction of the guide rail 2 is reduced, and the bent pipe 11 and the transverse pipe 14 can be distributed in a wave shape in the radiator shell 1. At this time, the slider 3 can be further added to the radiator shell 1, and then the transverse pipe 14 can be further added. According to the number of transverse pipes 14 to be added, the rotation angle of the bent pipe 11 is adjusted. After the adjustment is completed, the mounting plate 7 is fixed by the second fixing screw 18 to prevent the mounting plate 7 from rotating again. The slider 3 is fixed again by the third fixing screw 28, and then it can continue to be used. The heat dissipation capacity of the equipment can be increased by adding transverse pipes 14 and heat dissipation fins 21, and different numbers of transverse pipes 14 can be set according to actual use requirements, further improving the matching degree between the heat dissipation capacity of the equipment and the actual use requirements, and improving the practicality and flexibility of the use of the equipment.

[0030] In an example of this embodiment, the elastic member 6 is a spring, and of course it can also be other elastic components such as an elastic ball, and the spring applies a resetting thrust to the mounting plate 7.

[0031] like Figure 1-Figure 9 As shown, a fin-type heat exchanger of an air-conditioning refrigeration device provided by the present invention is provided. A semicircular connecting plate 22 is arranged on the transverse tube 14, and the heat dissipating fins 23 are fixedly mounted on the connecting plate 22 and the heat dissipating fins 23 are semicircular. Permanent magnets 24 are fixedly mounted on both ends of the connecting plate 22. Two groups of corresponding connecting plates 22 form a complete circular structure around the transverse tube, and the two groups of connecting plates 22 are fixedly connected by the permanent magnets 24.

[0032] Specifically, a support ring 19 is provided on the cross tube 14, and the support ring 19 is coaxially arranged with the cross tube 14. A plurality of groups of rollers 20 are rotatably installed in the support ring 19, and the plurality of groups of rollers 20 are distributed in a circular array around the axis of the support ring 19. The rollers 20 are in rolling contact with the outer surface of the cross tube 14. The support ring 19 is installed on the cross tube 14 through the rollers 20. Two groups of symmetrically distributed support rods 21 are rotatably installed on the support ring 19. The cross section of the support rods 21 is a non-circular structure. The support rods 21 penetrate the heat dissipating fins 23, and the heat dissipating fins 23 are provided with through holes 25 for the support rods 21 to penetrate.

[0033] Specifically, a fixing frame 26 is slidably mounted on one group of support rods 21 . The fixing frame 26 is L-shaped and one side wall of the fixing frame 26 is parallel to the support rod 21 . A limiting block 27 is fixedly mounted on one end of the fixing frame 26 away from the support ring 19 .

[0034] In actual application of this embodiment, before installing the cross tube 14, the support ring 19 is first installed on the cross tube 14 through the roller 20. When installing the heat dissipation fins 23, the heat dissipation fins 23 are installed to the set position on the support rod 21 through the through hole 25, and the opening of the connecting plate 22 is facing the side where the cross tube 14 is located. The surface of the support rod 21 is a rough plane, which has a certain resistance to the heat dissipation fins 23 to prevent the heat dissipation fins 23 from moving at will. Then, the two groups of support rods 21 are pushed to rotate so that the connecting plate 22 contacts the outer surface of the cross tube 14. When the support rods 21 When parallel to the transverse tube 14, the connecting plate 22 contacts the surface of the transverse tube 14. At this time, the two groups of connecting plates 22 corresponding to the position contact and are adsorbed and fixed to each other under the action of the permanent magnet 24. The heat dissipation fins 23 can be installed on the transverse tube 14 by connecting and fixing multiple groups of connecting plates 22 to each other. A set number of heat dissipation fins 23 can be installed on the support rod 21 according to the need of heat dissipation capacity. The number of heat dissipation fins 23 can be increased or decreased on the transverse tube 14 later, further improving the flexibility of adjusting the heat dissipation capacity of the equipment, and can be conveniently adjusted according to actual use; When adding or reducing the heat dissipation fins 23 subsequently, the staff member pinches the fixing frame 26 and the support rod 21 where the fixing frame 26 is located with his fingers until the limit block 27 contacts the support rod 21. At this time, the fixing frame 26 is in contact and fixed with the surface of the heat dissipation fin 23. The limit block 27 prevents the fixing frame 26 from exerting a large force on the heat dissipation fin 23 to cause damage to the heat dissipation fin 23. Then, the support rod 21 can be pulled away from the cross tube 14 to rotate. At this time, the connecting plate 22 on the other group of support rods 21 contacts the cross tube 14. Then, the connecting plate 22 on the group of support rods 21 can be separated from the cross tube 14. At this time, the heat dissipation fins 23 can be added or reduced. The fixing frame 26 ensures that the heat dissipation fins 23 on the rotating support rod 21 are in a stable position. To avoid the position of the heat dissipation fins 23 not corresponding to the position of the heat dissipation fins 23 on another set of support rods 21, to avoid subsequent readjustment, and to increase the speed of adjusting the number of heat dissipation fins 23. When increasing the number of cross tubes 14 and causing the front heat dissipation fins 23 to block the position of the rear heat dissipation fins 23, repeat the above steps to disengage the connecting plate 22 on the support rod 21 where the fixing frame 26 is located from the cross tube 14, and then rotate the other set of support rods 21 to disengage the connecting plate 22 from the cross tube 14. Subsequent staff push the support ring 19 to move a set distance on the cross tube 14 through the two sets of support rods 21, so that the positions of the heat dissipation fins 23 on the two sets of cross tubes 14 that affect each other are staggered, thereby ensuring that air can stably and fully flow through the heat dissipation fins 23 to ensure heat dissipation capacity.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A finned heat exchanger for air conditioning and refrigeration equipment, comprising a radiator housing (1), characterized in that: A plurality of groups of sliders (3) are arranged on two groups of symmetrical side walls in the radiator shell (1); mounting rods (4) are fixedly installed on mutually adjacent surfaces of the sliders (3) on both sides; a mounting tube (5) is slidably installed on the mounting rods (4); an elastic member (6) is fixedly installed on the side of the slider (3); one end of the elastic member (6) away from the slider (3) is fixedly connected to the mounting tube (5); one end of the mounting tube (5) away from the slider (3) is rotatably installed with a mounting plate (7); the mounting plate (7) is a U-shaped structure and an arc-shaped positioning groove (8) is provided on one side wall of the mounting plate (7); a semicircular bent pipe (11) is arranged in the positioning groove (8); corresponding ends of the bent pipes (11) on both sides are commonly connected to a transverse pipe (14); an inlet pipe (15) and an outlet pipe (16) are fixedly installed on the symmetrical side walls of the radiator shell (1); the inlet pipe (15) and the outlet pipe (16) are respectively connected to the corresponding transverse pipe (14); and a heat dissipation fin (23) is arranged on the transverse pipe (14).

2. The finned heat exchanger for air conditioning and refrigeration equipment according to claim 1, characterized in that: The radiator housing (1) is a frame-shaped structure, and guide rails (2) are fixedly mounted on two sets of symmetrical side walls of the radiator housing (1), the guide rail (2) has a T-shaped cross section, and the slider (3) is slidably mounted on the guide rail (2), a gap for the slider (3) to be placed is provided between one end of the guide rail (2) and the inner wall of the radiator housing (1), and a third fixing screw (28) is threadedly mounted on the slider (3).

3. The finned heat exchanger for air conditioning and refrigeration equipment according to claim 1, characterized in that: A support plate (17) is fixedly mounted on the surface of the mounting plate (7) close to the slider (3), and second fixing screws (18) are threadedly mounted on the support plate (17), and the second fixing screws (18) are distributed along the radial direction of the mounting cylinder (5).

4. The finned heat exchanger for air conditioning and refrigeration equipment according to claim 3, characterized in that: A first fixing screw (9) is threadedly connected to a side wall of the mounting plate (7) away from the positioning groove (8), the first fixing screw (9) points toward the positioning groove (8), and a pressing plate (10) is fixedly mounted on one end of the first fixing screw (9) close to the positioning groove (8).

5. The finned heat exchanger for air conditioning and refrigeration equipment according to claim 1, characterized in that: The curved pipe (11) and the transverse pipe (14) are connected via a connecting tube (12). Connecting heads (13) are rotatably mounted at both ends of the connecting tube (12). The connecting heads (13) at both ends are respectively connected to the curved pipe (11) and the transverse pipe (14). The transverse pipe (14) is connected to the inlet pipe (15) and the outlet pipe (16) via the connecting tube (12).

6. The finned heat exchanger for air conditioning and refrigeration equipment according to claim 1, characterized in that: A semicircular connecting plate (22) is provided on the transverse tube (14); a heat dissipation fin (23) is fixedly mounted on the connecting plate (22) and the heat dissipation fin (23) is semicircular; permanent magnets (24) are fixedly mounted on both ends of the connecting plate (22); two groups of corresponding connecting plates (22) surround the transverse tube to form a complete circular structure; and the two groups of connecting plates (22) are fixedly connected via the permanent magnets (24).

7. The finned heat exchanger for air conditioning and refrigeration equipment according to claim 6, characterized in that: The transverse tube (14) is provided with a support ring (19), the support ring (19) and the transverse tube (14) being arranged coaxially, a plurality of groups of rollers (20) being rotatably mounted in the support ring (19), the plurality of groups of rollers (20) being distributed in a circular array around the axis of the support ring (19), the rollers (20) being in rolling contact with the outer surface of the transverse tube (14), the support ring (19) being mounted on the transverse tube (14) via the rollers (20), two groups of symmetrically distributed support rods (21) being rotatably mounted on the support ring (19), the cross section of the support rods (21) being a non-circular structure, the support rods (21) penetrating the heat dissipation fins (23), and the heat dissipation fins (23) being provided with through holes (25) for the support rods (21) to penetrate.

8. The finned heat exchanger for air conditioning and refrigeration equipment according to claim 7, characterized in that: A fixing frame (26) is slidably mounted on one of the groups of support rods (21); the fixing frame (26) is L-shaped and one side wall of the fixing frame (26) is parallel to the support rod (21); and a limiting block (27) is fixedly mounted on one end of the fixing frame (26) away from the support ring (19).

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