Composite condensing capillary vacuum soldering return gas tube assembly

Abstract

The utility model relates to refrigeration back gas pipe technical field, specifically is a kind of composite condensation capillary tube vacuum soldering back gas pipe assembly, including back gas pipe, capillary tube and installation slot, back gas pipe outer wall spiral adhesion capillary tube, back gas pipe outer wall is equipped with installation slot corresponding capillary tube, and capillary tube both ends are equipped with miniature flange. The utility model is when using, pull pull plate and drive square bar to move right, square bar compresses spring, square bar and clamping groove are separated from each other at this time, again rotate handle and drive rotating rod to rotate, rotating rod thereby drives second bevel gear to rotate, second bevel gear thereby drives first bevel gear and threaded rod to rotate, threaded rod thereby drives presser plate to move down, presser plate thereby compacts capillary tube, then loosen pull plate, under the action of spring elasticity drive square bar to recover original position, square bar is inserted into clamping groove, thereby limiting rotating rod, compact capillary tube by presser plate, further improve anti-vibration ability, improve structural stability simultaneously, avoid capillary tube to loosen.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration return pipe technology, specifically a composite condenser capillary vacuum soldered return pipe assembly. Background Technology

[0002] To improve the refrigeration efficiency of refrigeration systems, the capillary tube and return pipe on the refrigeration unit of refrigerators, freezers, and other equipment are required to exchange heat in parallel. The return pipe assembly, consisting of the capillary tube and the return pipe, forms a regenerative circulation device. To meet the requirements of the regenerative circulation, the contact length between the low-pressure return pipe and the capillary tube should be at least 0.7m during installation to ensure sufficient heat exchange between the capillary tube and the return pipe, further cooling the refrigerant in the capillary tube, increasing its subcooling degree, and increasing the evaporator's cooling capacity.

[0003] In traditional regenerator heat return tube assemblies, the capillary tube is typically soldered directly to the surface of the return gas tube. Traditional soldering or aluminum foil wrapping methods result in a small contact area between the return gas tube and the capillary tube, leading to low heat exchange efficiency. Furthermore, the difference in thermal expansion coefficients during soldering can easily generate stress, causing solder joint cracking or poor contact, which in turn can loosen the capillary tube and result in poor structural stability. Therefore, this invention provides a composite condensing capillary tube vacuum soldered return gas tube assembly to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a composite condenser capillary vacuum solder return pipe assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A composite condenser capillary vacuum soldering return pipe assembly includes a return pipe, a capillary, and a mounting groove. The outer wall of the return pipe is spirally fitted with the capillary. The outer wall of the return pipe is provided with a mounting groove corresponding to the capillary. Miniature flanges are provided at both ends of the capillary. Several fixing blocks are symmetrically arranged on the left and right sides of the return pipe. Pressure plates are slidably connected to the fixing blocks and are in contact with the capillary.

[0006] When using this device, the capillary tube is embedded and welded into the mounting groove. The mounting groove structure effectively increases the contact area between the capillary tube and the return gas pipe, thereby improving the heat exchange efficiency of the component. The micro flange structure, together with the metal gasket and bolt structure, facilitates the sealing connection at the capillary tube joint, making operation convenient and reducing maintenance difficulty. The pressure plate tightens the capillary tube, further enhancing its vibration resistance and structural stability, and preventing the capillary tube from loosening.

[0007] As a further embodiment of this utility model, the fixing block is provided with a groove corresponding to the pressure plate, and the pressure plate is slidably connected to the groove. The groove facilitates the sliding of the pressure plate on the fixing block.

[0008] As a further embodiment of this utility model, the pressure plate is provided with symmetrical limiting blocks at both ends. The limiting blocks are slidably connected to the inner wall of the groove, and the inner wall of the groove is provided with a limiting groove corresponding to the limiting blocks. The combination of the limiting blocks and the limiting groove structure facilitates the limiting of the pressure plate.

[0009] As a further embodiment of this utility model, the pressure plate is symmetrically connected with threaded rods on the left and right sides. The threaded rods are equipped with bearings, which are fixedly connected to the bottom end of the groove. By rotating the threaded rods, the threaded rods can easily drive the pressure plate to move downwards, thereby facilitating the pressure plate to press the capillary tube.

[0010] As a further embodiment of this utility model, the upper end of the threaded rod is provided with a first bevel gear, which meshes with a second bevel gear. The second bevel gears face the same direction and are provided with a rotating rod. The right end of the rotating rod is provided with a handle. A bearing seat is provided on the rotating rod corresponding to the groove. The bearing seat is fixedly connected to the inner wall of the groove. By rotating the handle, the rotating rod is driven to rotate, which in turn drives the second bevel gear to rotate. The second bevel gear then drives the first bevel gear and the threaded rod to rotate, and the threaded rod then drives the pressure plate to move downward.

[0011] As a further embodiment of this utility model, the right end of the rotating rod is engaged with the square rod, the right end of the rotating rod is provided with a slot corresponding to the square rod, and the right end of the square rod is provided with a pull plate. The square rod is provided with a support frame, the square rod passes through the support frame, the square rod and the support frame are slidably connected, and the support frame is fixedly connected to the fixing block. Through the combined use of the square rod and the slot structure, the square rod can easily limit the rotating rod and prevent the rotating rod from rotating on its own.

[0012] As a further embodiment of this utility model, the square rod is provided with a connecting plate, and a spring is sleeved on the square rod. One end of the spring is fixedly connected to the connecting plate, and the other end of the spring is fixedly connected to the support frame. The elastic potential energy of the spring facilitates the square rod to return to its original position.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. When using this utility model, the capillary tube is embedded and welded into the mounting groove. The mounting groove structure effectively increases the contact area between the capillary tube and the return gas pipe, thereby improving the heat exchange efficiency of the component.

[0014] 2. The miniature flange structure, combined with the metal gasket and bolt structure, facilitates the sealing connection at the capillary joint, making operation convenient and reducing maintenance difficulty.

[0015] 3. When using this utility model, pulling the pull plate causes the square rod to move to the right, compressing the spring. At this time, the square rod separates from the slot. Then, rotating the handle causes the rotating rod to rotate, which in turn drives the second bevel gear to rotate. The second bevel gear then drives the first bevel gear and the threaded rod to rotate, which in turn drives the pressure plate to move downward. The pressure plate then presses the capillary tube. Then, releasing the pull plate causes the square rod to return to its original position under the action of the spring force. The square rod is inserted into the slot, thus limiting the rotating rod. By pressing the capillary tube with the pressure plate, the vibration resistance is further improved, and the structural stability is enhanced, preventing the capillary tube from loosening. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a composite condenser capillary vacuum solder return gas pipe assembly.

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a composite condenser capillary vacuum solder return gas pipe assembly.

[0018] Figure 3 A composite condenser capillary vacuum solder return pipe assembly Figure 2 A magnified structural diagram of point A in the middle.

[0019] Figure 4 A composite condenser capillary vacuum solder return pipe assembly Figure 3 A magnified structural diagram at point B in the middle.

[0020] In the diagram: 1. Return air pipe; 101. Mounting groove; 2. Capillary tube; 3. Miniature flange; 4. Fixing block; 401. Groove; 5. Pressure plate; 501. Limiting block; 502. Limiting groove; 6. Threaded rod; 601. Bearing; 7. First bevel gear; 8. Second bevel gear; 9. Rotating rod; 901. Handle; 10. Bearing seat; 11. Square rod; 1101. Slot; 12. Pull plate; 13. Support frame; 14. Connecting plate; 15. Spring. Detailed Implementation

[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] In this invention, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this invention is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use this invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of this invention with unnecessary detail. Therefore, this invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed herein.

[0023] Example Please see Figures 1-4 In this embodiment of the present invention, a composite condensing capillary vacuum soldering return pipe assembly includes a return pipe 1, a capillary 2, and a mounting groove 101. The outer wall of the return pipe 1 is spirally fitted with the capillary 2. The outer wall of the return pipe 1 is provided with the mounting groove 101 corresponding to the capillary 2. The capillary 2 is provided with miniature flanges 3 at both ends. Several fixing blocks 4 are symmetrically arranged on the return pipe 1. A pressure plate 5 is slidably connected to the fixing block 4. The pressure plate 5 is in contact with the capillary 2.

[0024] Specifically, the capillary tube 2 is embedded and welded into the mounting groove 101. The structure of the mounting groove 101 effectively increases the contact area between the capillary tube 2 and the return gas pipe 1, thereby improving the heat exchange efficiency of the component. The micro flange 3 structure, together with the metal gasket and bolt structure, facilitates the sealing connection at the capillary tube 2 joint, making operation convenient and reducing maintenance difficulty. The pressure plate 5 is used to press the capillary tube 2, further improving the vibration resistance and structural stability, and preventing the capillary tube 2 from loosening.

[0025] Please see Figure 3 The fixing block 4 has a groove 401 corresponding to the pressure plate 5, and the pressure plate 5 is slidably connected to the groove 401.

[0026] Specifically, the groove 401 facilitates the sliding of the pressure plate 5 on the fixed block 4.

[0027] The pressure plate 5 is provided with symmetrical limiting blocks 501 at both ends. The limiting blocks 501 are slidably connected to the inner wall of the groove 401. The inner wall of the groove 401 is provided with a limiting groove 502 corresponding to the limiting blocks 501.

[0028] Specifically, the combination of the limiting block 501 and the limiting groove 502 facilitates the limiting of the pressure plate 5, preventing the pressure plate 5 from falling out of the groove 401.

[0029] The pressure plate 5 is symmetrically connected to threaded rods 6, and the threaded rods 6 are provided with bearings 601, which are fixedly connected to the bottom end of the groove 401.

[0030] Specifically, by rotating the threaded rod 6, the threaded rod 6 can easily drive the pressure plate 5 to move downward, thereby making it easier for the pressure plate 5 to press the capillary tube 2, improving the vibration resistance, and at the same time improving the structural stability and preventing the capillary tube 2 from loosening.

[0031] The upper end of the threaded rod 6 is provided with a first bevel gear 7, which meshes with a second bevel gear 8. The second bevel gear 8 faces the same direction and is provided with a rotating rod 9. The right end of the rotating rod 9 is provided with a handle 901. The rotating rod 9 is provided with a bearing seat 10 corresponding to the groove 401. The bearing seat 10 is fixedly connected to the inner wall of the groove 401.

[0032] Specifically, rotating the handle 901 drives the rotating rod 9 to rotate, which in turn drives the second bevel gear 8 to rotate, which in turn drives the first bevel gear 7 and the threaded rod 6 to rotate, and the threaded rod 6 in turn drives the pressure plate 5 to move downward.

[0033] Please see Figure 4 The right end of the rotating rod 9 is engaged with the square rod 11. The right end of the rotating rod 9 is provided with a slot 1101 corresponding to the square rod 11, and the right end of the square rod 11 is provided with a pull plate 12. The square rod 11 is provided with a support frame 13, the square rod 11 passes through the support frame 13, the square rod 11 and the support frame 13 are slidably connected, and the support frame 13 is fixedly connected to the fixing block 4.

[0034] Specifically, through the combined use of the square rod 11 and the slot 1101 structure, the square rod 11 facilitates the limiting of the rotating rod 9, preventing the rotating rod 9 from rotating on its own.

[0035] The square rod 11 is provided with a connecting plate 14, and a spring 15 is sleeved on the square rod 11. One end of the spring 15 is fixedly connected to the connecting plate 14, and the other end of the spring 15 is fixedly connected to the support frame 13.

[0036] Specifically, the elastic potential energy of the spring 15 facilitates the return of the square rod 11 to its original position.

[0037] The working principle of this utility model is as follows: In use, the capillary tube 2 is embedded and welded into the mounting groove 101. The structure of the mounting groove 101 effectively increases the contact area between the capillary tube 2 and the return pipe 1, thereby improving the heat exchange efficiency of the component. The micro flange 3 structure, together with the metal gasket and bolt structure, facilitates the sealing connection at the capillary tube 2 joint, making operation convenient and reducing maintenance difficulty. Then, pulling the pull plate 12 drives the square rod 11 to move to the right, compressing the spring 15. At this time, the square rod 11 separates from the slot 1101. Then, rotate the handle 90 degrees. 1. The rotating rod 9 is driven to rotate, which in turn drives the second bevel gear 8 to rotate. The second bevel gear 8 in turn drives the first bevel gear 7 and the threaded rod 6 to rotate. The threaded rod 6 in turn drives the pressure plate 5 to move downward. The pressure plate 5 presses the capillary tube 2, and then the pull plate 12 is released. Under the action of the spring force 15, the square rod 11 is driven to return to its original position. The square rod 11 is inserted into the slot 1101, thereby limiting the rotating rod 9. By pressing the capillary tube 2 with the pressure plate 5, the vibration resistance is further improved, and the structural stability is improved, preventing the capillary tube 2 from loosening.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A composite condenser capillary vacuum solder return pipe assembly, characterized in that, It includes a return pipe (1), a capillary tube (2) and a mounting groove (101). The outer wall of the return pipe (1) is spirally attached to the capillary tube (2). The outer wall of the return pipe (1) is provided with a mounting groove (101) corresponding to the capillary tube (2). The capillary tube (2) is provided with miniature flanges (3) at both ends. Several fixing blocks (4) are symmetrically arranged on the return pipe (1). A pressure plate (5) is slidably connected on the fixing block (4). The pressure plate (5) is attached to the capillary tube (2).

2. The composite condenser capillary vacuum solder return pipe assembly according to claim 1, characterized in that, The fixing block (4) has a groove (401) corresponding to the pressure plate (5), and the pressure plate (5) is slidably connected to the groove (401).

3. The composite condenser capillary vacuum solder return pipe assembly according to claim 1, characterized in that, The pressure plate (5) is provided with symmetrical limiting blocks (501) at both ends. The limiting blocks (501) are slidably connected to the inner wall of the groove (401). The inner wall of the groove (401) is provided with a limiting groove (502) corresponding to the limiting blocks (501).

4. The composite condenser capillary vacuum solder return pipe assembly according to claim 1, characterized in that, The pressure plate (5) is symmetrically connected to the threaded rod (6), and the threaded rod (6) is provided with a bearing (601), which is fixedly connected to the bottom end of the groove (401).

5. A composite condenser capillary vacuum solder return pipe assembly according to claim 4, characterized in that, The upper end of the threaded rod (6) is provided with a first bevel gear (7), and a second bevel gear (8) meshes with the first bevel gear (7). The second bevel gear (8) faces the same direction, and a rotating rod (9) is provided on the second bevel gear (8). A handle (901) is provided on the right end of the rotating rod (9). A bearing seat (10) is provided on the rotating rod (9) corresponding to the groove (401). The bearing seat (10) is fixedly connected to the inner wall of the groove (401).

6. The composite condenser capillary vacuum solder return pipe assembly according to claim 5, characterized in that, The right end of the rotating rod (9) is engaged with the square rod (11). The right end of the rotating rod (9) is provided with a slot (1101) corresponding to the square rod (11). The right end of the square rod (11) is provided with a pull plate (12). The square rod (11) is provided with a support frame (13). The square rod (11) passes through the support frame (13). The square rod (11) and the support frame (13) are slidably connected. The support frame (13) is fixedly connected to the fixing block (4).

7. A composite condenser capillary vacuum solder return pipe assembly according to claim 6, characterized in that, The square rod (11) is provided with a connecting plate (14) and a spring (15) is sleeved on the square rod (11). One end of the spring (15) is fixedly connected to the connecting plate (14), and the other end of the spring (15) is fixedly connected to the support frame (13).

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