Device for changing radius of bent pipe of refrigeration pipeline

Abstract

The utility model belongs to the technical field of manufacturing of refrigeration pipelines, and particularly relates to a device for changing the radius of a bent pipe of a refrigeration pipeline, which comprises a U-shaped pipe fitting and an operating platform with a portal frame at the top, two rotatable sleeves are transversely arranged in parallel in the portal frame, two ends of the U-shaped pipe fitting can be respectively inserted into the sleeves on two sides in a penetrating manner, and the U-shaped pipe fitting is fixedly connected with the operating platform. The two sleeves capable of rotating side by side are inserted into the two sleeves respectively, a U-shaped bend of the U-shaped pipe fitting is driven by the two sleeves to be expanded from R1 to R2 on the basis of rotation, and a push block for driving the sleeves to rotate is arranged on one side, deviating from the U-shaped bend of the U-shaped pipe fitting, of the operation table. And when the U-shaped bend of the U-shaped pipe fitting is close to the two U-shaped bends, the two sleeves are in a parallel state, so that the U-shaped bend of the U-shaped pipe fitting is conveniently converted from R1 to R2, and the function that the equipment automatically converts the U-shaped bend of the U-shaped pipe fitting is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration pipeline manufacturing, and in particular relates to a device for changing the radius of a refrigeration pipeline bend. Background Art

[0002] Refrigeration pipelines are generally used in evaporators. The evaporator plays a vital role in the refrigerator refrigeration system, but evaporator leakage has always been a pain point problem in the market.

[0003] The existing evaporator is provided with multiple aluminum tubes for parallel connection. When the multiple aluminum tubes are connected, a bent tube structure will be formed at the end thereof. There are two specifications of multiple bent tubes in the whole evaporator, namely R11MM and R14MM. Due to the different sizes of the bent U, the processing cannot be completed at one time on the tube bending machine. Usually, the pipeline is divided into two parts and bent separately, and then the R14 U bend is bent and the pipeline connection is achieved by adding welding points. The processing technology is complicated and the quality risk is great. Evaporator leakage will cause refrigerant leakage, and the refrigerator will not refrigerate, which seriously affects the overall performance of the refrigerator. Therefore, reducing the existence of welding points reduces the risk of leakage. Utility Model Content

[0004] The utility model aims to provide a device for changing the radius of a refrigeration pipeline bend, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for changing the radius of the bend of a refrigeration pipeline, comprising: a U-shaped pipe fitting and an operating table with a gantry on the top, wherein two rotatable sleeves are arranged horizontally in parallel in the gantry, and the two ends of the U-shaped pipe fitting can be respectively inserted into the sleeves on both sides, and based on the rotation, the two sleeves drive the U-bend of the U-shaped pipe fitting to expand from R1 to R2.

[0006] Preferably, a push block for rotationally driving the sleeve is provided on the side of the operating table away from the U-bend of the U-shaped pipe fitting, and a driving member for driving the push block to move closer to or away from one side of the U-shaped pipe fitting is provided on the side of the push block away from the U-shaped pipe fitting, the width of the push block is equal to R2, and the end of the push block close to the side of the U-shaped pipe fitting is rounded.

[0007] Preferably, the driving member includes a first screw and a first motor for rotationally driving the first screw, the first motor is mounted on an operating table, and a threaded hole for accommodating the first screw is provided on the push block.

[0008] Preferably, a guide groove is provided at the top of the operating table along the moving direction of the push block, and a guide block movable in the guide groove is provided at the bottom of the push block.

[0009] Preferably, two rotating shafts are symmetrically provided on the sleeve, and the two rotating shafts are rotatably mounted on the gantry and the operating table respectively.

[0010] Preferably, a pushing mechanism for pushing the U-shaped pipe fittings toward one side of the gantry is also installed on the operating table, and the pushing end of the pushing mechanism abuts against the outer side of the U-bend of the U-shaped pipe fittings.

[0011] Preferably, the pushing mechanism includes a second screw and a second motor for rotationally driving the second screw, a movable groove is opened on the operating table along the pushing direction of the U-shaped pipe fitting, a movable block threaded on the second screw is movably provided in the movable groove, and a push plate abutting against the U-shaped pipe fitting is provided on the top of the movable block.

[0012] Preferably, a baffle plate for limiting the push plate is longitudinally provided on the top of the moving block, the bottom end of the push plate is rotatably arranged on a side of the baffle plate close to the U-shaped pipe fitting, and the highest point of the baffle plate is arranged inside the moving groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) The utility model adds two parallel rotatable sleeves, inserts the two ends of the U-shaped pipe fitting into the two sleeves respectively, and when the U-bend of the U-shaped pipe fitting is close to the two U-bends, the two sleeves are in a parallel state, so that the U-bend of the U-shaped pipe fitting is converted from R1 to R2, thereby realizing the function of the equipment automatically converting the U-bend of the U-shaped pipe fitting.

[0015] (2) The utility model adds a push block and a driving member that cooperate with each other. The driving member can drive the push block to approach the two sleeves, thereby facilitating the two sleeves to rotate in a parallel state, thereby facilitating the adjustment of the U-bend size of the U-shaped pipe fitting.

[0016] (3) The utility model adds a pushing mechanism, which can automatically push the U-shaped pipe fitting toward one side of the sleeve, thereby facilitating automatic U-bend size adjustment of the U-shaped pipe fitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of the utility model;

[0018] Figure 2 It is a schematic diagram of the cooperation of the push block, the sleeve and the first screw rod of the utility model;

[0019] Figure 3 It is a cross-sectional view of the propulsion mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the cooperation between the casing and the gantry of the utility model;

[0021] Figure 5 This is a schematic diagram of the cooperation between the guide block and the guide groove of the utility model;

[0022] Figure 6 It is a front view of the sleeve and the push block of the utility model;

[0023] In the figure: 1, operating table; 2, gantry; 3, sleeve; 4, first motor; 5, first screw; 6, push block; 7, moving block; 8, push plate; 9, baffle; 10, moving groove; 11, second screw; 12, guide groove; 13, threaded hole; 14, second motor; 15, rotating shaft; 16, guide block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] refer to Figure 1-2 As shown, the utility model provides a device for changing the radius of the bend of a refrigeration pipeline, comprising: a U-shaped pipe fitting and an operating table 1 with a gantry 2 on the top, two rotatable sleeves 3 are arranged horizontally in parallel in the gantry 2, and the two ends of the U-shaped pipe fitting can be respectively inserted into the sleeves 3 on both sides, and based on the rotation, the two sleeves 3 drive the U-bend of the U-shaped pipe fitting to expand from R1 to R2.

[0026] As mentioned above, when using the U-shaped pipe fitting, operating table 1, gantry 2, and two sleeves 3 provided by the utility model, the two ends of the U-shaped pipe fitting are respectively inserted into the two sleeves 3, and a thrust is applied to the U-shaped pipe fitting on one side of the sleeve 3, so that when the U-bend of the U-shaped pipe fitting approaches the gantry 2, in this process, since the sleeve 3 is rotatable, the two ends of the U-shaped pipe fitting are unfolded outward in an eight-shaped structure as the two sleeves 3 rotate. When the U-bend of the U-shaped pipe fitting is at the end of the sleeve 3, the two ends of the sleeve 3 that are away from each other are closed inward, so that the two ends of the U-shaped pipe fitting are transformed from an eight-shaped state to a parallel state. At this time, the U-bend of the U-shaped pipe fitting is the enlarged size, R1 is the U-bend of the U-shaped pipe fitting is R11MM, and R2 is the U-bend of the U-shaped pipe fitting is R14MM.

[0027] Further, in order to facilitate the rotation and installation of the casing 3 between the operating table 1 and the gantry 2, refer to Figure 4-6 As shown, two rotating shafts 15 are symmetrically arranged on the sleeve 3, and the two rotating shafts 15 are rotatably mounted on the gantry 2 and the operating platform 1 respectively. The sleeve 3 is rotatably mounted between the gantry 2 and the operating platform 1 through the two rotating shafts 15.

[0028] In the present utility model, combined with Figure 1-2 and Figure 5-6 As shown, the operating table 1 of this embodiment is provided with a push block 6 for rotationally driving the sleeve 3 on the side away from the U-bend of the U-shaped pipe fitting, and a driving member for driving the push block 6 to move closer to or away from one side of the U-shaped pipe fitting is provided on the side away from the U-shaped pipe fitting. The width of the push block 6 is equal to R2, and the end of the push block 6 close to the U-shaped pipe fitting is rounded.

[0029] As mentioned above, when the two ends of the U-shaped pipe fitting provided by the utility model are respectively inserted into the two sleeves 3, the two sleeves 3 are distributed in an eight-shaped structure on both sides of the push block 6. At this time, the driving member is started, driving the push block 6 to enter the eight-shaped structure, so that the two sleeves 3 are distributed in parallel, and it is convenient to change the U-bend of the U-shaped pipe fitting from R1 to R2, and the rounded corners at the ends of the push block 6 facilitate the adjustment of the angle of the sleeve 3.

[0030] Further, in order to facilitate the linear drive of the push block 6, refer to Figure 2 and Figure 5 As shown, the driving member includes a first screw rod 5 and a first motor 4 for driving the first screw rod 5 to rotate. The first motor 4 is mounted on the operating table 1, and a threaded hole 13 for accommodating the first screw rod 5 is provided on the push block 6. When the first motor 4 is started, the first screw rod 5 rotates, thereby driving the push block 6 to perform linear motion along with the rotation of the first screw rod 5 through the threaded hole 13.

[0031] Further, in order to facilitate the guidance of the moving direction of the push block 6, refer to Figure 5 As shown, a guide groove 12 is provided at the top of the operating table 1 along the direction in which the push block 6 moves, and a guide block 16 is provided at the bottom of the push block 6 that can move in the guide groove 12. The guide block 16 moves in the guide groove 12 to guide the direction in which the push block 6 moves.

[0032] In the present utility model, combined with Figure 1-3 As shown, a pushing mechanism for pushing the U-shaped pipe fittings toward one side of the gantry 2 is also installed on the operating table 1 of this embodiment, and the pushing end of the pushing mechanism abuts against the outer side of the U-bend of the U-shaped pipe fittings.

[0033] Combination Figure 3 As shown, the pushing mechanism includes a second screw rod 11 and a second motor 14 for rotationally driving the second screw rod 11. A movable groove 10 is opened on the operating table 1 along the pushing direction of the U-shaped pipe fitting. A movable block 7 screwed on the second screw rod 11 is movably provided in the movable groove 10. A push plate 8 abutting against the U-shaped pipe fitting is provided on the top of the movable block 7.

[0034] As mentioned above, when using the pushing mechanism provided by the utility model, the push plate 8 is moved and installed in the moving groove 10 through the moving block 7. When the U-bend of the U-shaped pipe fitting abuts against the push plate 8, the second motor 14 is started, driving the second screw 11 to rotate in the moving groove 10, thereby driving the moving block 7 to move toward one side of the gantry 2 in the moving groove 10, and then driving the U-shaped pipe fitting to be pushed toward one side of the gantry 2 through the push plate 8.

[0035] Further, in order to avoid interference between the push plate 8 and the U-shaped pipe fitting, refer to Figure 3 As shown, a baffle 9 is longitudinally provided on the top of the moving block 7 to limit the push plate 8. The bottom end of the push plate 8 is rotatably arranged on the side of the baffle 9 close to the U-shaped pipe fitting, and the highest point of the baffle 9 is arranged inside the moving groove 10. The two ends of the U-shaped pipe fitting are respectively inserted into the two sleeves 3, and the U-shaped pipe fitting is manually pushed toward one side of the gantry 2, so that the two ends of the U-shaped pipe fitting pass through the sleeves 3 on the same side. When the U-bend of the U-shaped pipe fitting abuts against the push plate 8, the push plate 8 rotates and sticks to the moving block 7, which is convenient for the U-bend to pass over the push plate 8. After the U-bend passes over the push plate 8, the push plate 8 is turned outward on the baffle 9, so that the push plate 8 stands on the moving block 7 through the baffle 9. At this time, the moving block 7 pushes toward one side of the U-shaped pipe fitting in the moving groove 10, so that the push plate 8 abuts against the U-shaped pipe fitting, and then the U-shaped pipe fitting is automatically pushed by the push plate 8. Otherwise, the U-shaped pipe fitting with changed size can be taken out from the two sleeves 3.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for changing the radius of a refrigeration pipeline bend, characterized in that: include: A U-shaped pipe and an operating table (1) with a gantry (2) on the top, wherein two rotatable sleeves (3) are arranged in parallel in the gantry (2), and the two ends of the U-shaped pipe can be respectively inserted into the sleeves (3) on both sides, and the two sleeves (3) drive the U-bend of the U-shaped pipe to expand from R1 to R2 based on rotation.

2. The device for changing the radius of a refrigeration pipeline bend according to claim 1, characterized in that: A push block (6) for driving the sleeve (3) to rotate is provided on the side of the operating table (1) away from the U-bend of the U-shaped pipe fitting, and a driving member for driving the push block (6) to move toward or away from one side of the U-shaped pipe fitting is provided on the side of the push block (6) away from the U-shaped pipe fitting. The width of the push block (6) is equal to R2, and the end of the push block (6) close to the side of the U-shaped pipe fitting is rounded.

3. The device for changing the radius of a refrigeration pipeline bend according to claim 2, characterized in that: The driving member comprises a first screw rod (5) and a first motor (4) for driving the first screw rod (5) to rotate. The first motor (4) is mounted on the operating table (1). The push block (6) is provided with a threaded hole (13) for accommodating the first screw rod (5).

4. The device for changing the radius of a refrigeration pipeline bend according to claim 2, characterized in that: A guide groove (12) is provided at the top of the operating table (1) along the moving direction of the push block (6), and a guide block (16) movable in the guide groove (12) is provided at the bottom of the push block (6).

5. The device for changing the radius of a refrigeration pipeline bend according to claim 1, characterized in that: Two rotating shafts (15) are symmetrically arranged on the sleeve (3), and the two rotating shafts (15) are rotatably mounted on the gantry (2) and the operating table (1) respectively.

6. The device for changing the radius of a refrigeration pipeline bend according to claim 1, characterized in that: The operating table (1) is also provided with a pushing mechanism for pushing the U-shaped pipe fitting toward one side of the gantry (2), and the pushing end of the pushing mechanism abuts against the outer side of the U-bend of the U-shaped pipe fitting.

7. The device for changing the radius of a refrigeration pipeline bend according to claim 6, characterized in that: The pushing mechanism comprises a second screw rod (11) and a second motor (14) for driving the second screw rod (11) to rotate. A moving groove (10) is provided on the operating table (1) along the direction in which the U-shaped pipe is pushed. A moving block (7) screwed on the second screw rod (11) is movably provided in the moving groove (10). A push plate (8) abutting against the U-shaped pipe is provided on the top of the moving block (7).

8. The device for changing the radius of a refrigeration pipeline bend according to claim 7, characterized in that: A baffle (9) for limiting the position of the push plate (8) is also longitudinally arranged on the top of the moving block (7); the bottom end of the push plate (8) is rotatably arranged on a side of the baffle (9) close to the U-shaped pipe fitting; and the highest point of the baffle (9) is arranged inside the moving groove (10).

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