Novel positioning-free sheet metal air duct

Abstract

The utility model discloses a novel positioning-free sheet metal air duct, which relates to the technical field of manufacturing of refrigeration equipment and comprises an air duct shell, a partition plate arranged in the air duct shell and a side plate arranged on the side part of the air duct shell, the end of the air duct shell is an annular shell, a positioning groove is formed in the annular shell, and a fixed opening is formed in the side edge, located on the side plate installation side, of the annular shell. Positioning clamping jaws inserted into the positioning grooves are arranged at the positions, corresponding to the positioning grooves, of the partition plates, and positioning clamping jaws inserted into the positioning grooves are arranged at the positions, corresponding to the positioning grooves, of the side plates. According to the structure, when the partition plate and the side plate are welded, accurate positioning can be achieved through the positioning grooves, the positioning openings and the positioning clamping jaws of the partition plate and the side plate, a jig is not needed for positioning, and especially in a deep and complex air duct cavity, when the positioning jig cannot be used, the positioning jig can be used for positioning the partition plate and the side plate. The structure can greatly improve the working efficiency and the accuracy of the welding size.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment manufacturing, in particular to a novel positioning-free sheet metal air duct. Background Art

[0002] Sheet metal ducts are essential components in refrigeration equipment, and usually require welding to assemble and fix the internal components; traditional sheet metal ducts such as Figure 1 and Figure 2 As shown, the partitions and side panels in the duct cavity are difficult to position inside the duct shell before welding, resulting in inaccurate welding dimensions. In order to ensure the accuracy of the welding dimensions, it is usually necessary to use positioning fixtures to position them before welding. In deep and complex duct cavities, positioning fixtures cannot be used, resulting in the inability to position and fix them, which makes the assembly difficulty increase sharply and the welding dimension deviation is large. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of sheet metal air duct that does not require positioning. When welding partitions and side panels, accurate positioning can be achieved through their own positioning grooves, positioning ports and positioning claws, without the need for positioning with the aid of jigs. This structure can greatly improve work efficiency and the accuracy of welding dimensions. In deep and complex air duct cavities, positioning jigs cannot be used, and this structure can effectively solve the problem of fixing the partitions and side panels.

[0004] The utility model comprises an air duct shell, a partition plate arranged in the air duct shell, and a side plate arranged on the side of the air duct shell; the end of the air duct shell is an annular shell, a positioning groove is arranged on the annular shell, and a positioning opening is arranged on the side edge of the annular shell located on the side where the side plate is installed; a positioning claw inserted into the positioning groove is arranged at a position corresponding to the positioning groove on the partition plate, and a positioning claw inserted into the positioning groove is arranged at a position corresponding to the positioning groove on the side plate.

[0005] Preferably, the lower portion of the positioning claw is a rectangle, the long side of the rectangle extends upward and is connected to an inverted triangle at the end, and the side length of the inverted triangle is greater than the width of the rectangle.

[0006] Preferably, the positioning groove is rectangular, and the length of the positioning groove is greater than the side length of the inverted triangle.

[0007] Preferably, the positioning opening is a rectangle, and the length of the positioning opening is between the width of the rectangle at the bottom of the positioning claw and the side length of the inverted triangle.

[0008] Preferably, a plurality of positioning grooves are arranged at intervals, and the plurality of positioning grooves are arranged equidistantly on the annular shell.

[0009] Preferably, a plurality of positioning openings are arranged at intervals, and the plurality of positioning openings are arranged equidistantly on the side of the annular shell.

[0010] In summary, the utility model has the following beneficial effects:

[0011] 1. When welding the partition and the side plate, accurate positioning can be achieved through its own positioning grooves, positioning ports and positioning claws. The partition and the side plate are firmly fixed and not easy to move. No positioning fixture is required, which can greatly improve the work efficiency and the accuracy of the welding size;

[0012] 2. In the deep and complex air duct cavity, the positioning fixture cannot be used, the partition and the side panel cannot be fixed, and welding cannot be carried out. This structure effectively solves the problem of fixing the partition and the side panel, so that the welding work can be carried out smoothly, reducing the difficulty of work and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure of the traditional sheet metal air duct mentioned in the background technology is shown as follows Figure 1 ;

[0014] Figure 2 The structure of the traditional sheet metal air duct mentioned in the background technology is shown as follows Figure 2 ;

[0015] Figure 3 An exploded view of a novel sheet metal air duct that does not require positioning according to the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of a new type of sheet metal air duct that does not require positioning. Figure 1 ;

[0017] Figure 5 This is a schematic diagram of the structure of a new type of sheet metal air duct that does not require positioning. Figure 2 ;

[0018] Figure 6 is a schematic diagram of the structure of the air duct housing;

[0019] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0020] Figure 8 is a schematic diagram of the structure of the partition;

[0021] Fig. 9 It is a schematic diagram of the structure of the side panel. DETAILED DESCRIPTION

[0022] The utility model will be further described below in conjunction with the accompanying drawings.

[0023] The orientations mentioned in this specification are based on the orientation of the novel sheet metal air duct of the utility model that does not require positioning when it is in normal operation. The orientations during storage and transportation are not limited and only represent relative position relationships, not absolute position relationships.

[0024] like Figures 3 to 9 As shown together, a new type of sheet metal air duct without positioning includes an air duct shell 1, a partition 2 arranged in the air duct shell 1, and a side panel 3 arranged on the side of the air duct shell 1; the end of the air duct shell 1 is an annular shell, a positioning groove 4 is provided on the annular shell, and a positioning opening 5 is provided on the side edge of the annular shell located on the mounting side of the side panel 3; a positioning claw 6 inserted into the positioning groove 4 is provided on the partition 2 at a position corresponding to the positioning groove 4, and a positioning claw 6 inserted into the positioning groove 4 is provided on the side panel 3 at a position corresponding to the positioning groove 4; during assembly, the positioning claws 6 on the partition 2 and the side panel 3 are respectively inserted into the positioning groove 4 and the positioning opening 5, and the positioning of the partition 2 and the side panel 3 can be completed without using additional positioning work, which is convenient for welding and improves work efficiency and the accuracy of welding dimensions.

[0025] Furthermore, the lower portion of the positioning claw 6 is a rectangle, the long side of the rectangle extends upward and is connected to an inverted triangle at the end, and the side length of the inverted triangle is greater than the width of the rectangle.

[0026] Furthermore, the positioning groove 4 is rectangular, and the length of the positioning groove 4 is greater than the side length of the inverted triangle, which makes it easy to insert the positioning claw 6 on the partition 2 into the positioning groove 4 to achieve fixation and facilitate subsequent welding.

[0027] Furthermore, the positioning opening 5 is a rectangle, and the length of the positioning opening 5 is between the width of the lower rectangle of the positioning claw 6 and the side length of the inverted triangle, which makes it easy to insert the positioning claw 6 on the side panel 3 into the positioning opening 5 from the side, thereby fixing the side edge and preventing it from falling off, facilitating subsequent welding.

[0028] Furthermore, a plurality of positioning grooves 4 are arranged at intervals, and a plurality of positioning grooves 4 are arranged equidistantly on the annular shell. Accordingly, the partition plate 2 is provided with positioning claws 6 corresponding to the number of the positioning grooves 4 .

[0029] Furthermore, a plurality of positioning openings 5 ​​are arranged at intervals, and the plurality of positioning openings 5 ​​are arranged equidistantly on the side of the annular shell. Accordingly, the side plate 3 is provided with positioning claws 6 corresponding to the number of the positioning openings 5 ​​.

[0030] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A new type of sheet metal air duct without positioning, characterized by: The invention comprises an air duct housing (1), a partition (2) arranged in the air duct housing (1), and a side plate (3) arranged on the side of the air duct housing (1); the end of the air duct housing (1) is an annular shell, the annular shell is provided with a positioning groove (4), and the side edge of the annular shell is provided with a positioning opening (5) on the side where the side plate (3) is installed; a positioning claw (6) inserted into the positioning groove (4) is provided on the partition (2) at a position corresponding to the positioning groove (4), and a positioning claw (6) inserted into the positioning groove (4) is provided on the side plate (3) at a position corresponding to the positioning groove (4).

2. A novel positioning-free sheet metal air duct as claimed in claim 1, characterized in that: The lower part of the positioning claw (6) is a rectangle, the long side of the rectangle extends upward and is connected to an inverted triangle at the end, and the side length of the inverted triangle is greater than the width of the rectangle.

3. A novel positioning-free sheet metal air duct as claimed in claim 2, characterized in that: The positioning groove (4) is rectangular, and the length of the positioning groove (4) is greater than the side length of the inverted triangle.

4. A novel positioning-free sheet metal air duct as claimed in claim 2, characterized in that: The positioning opening (5) is rectangular, and the length of the positioning opening (5) is between the width of the lower rectangle of the positioning claw (6) and the side length of the inverted triangle.

5. The novel positioning-free sheet metal air duct according to claim 1, characterized in that: A plurality of the positioning grooves (4) are arranged at intervals, and the plurality of positioning grooves (4) are arranged at equal distances on the annular shell.

6. The novel positioning-free sheet metal air duct according to claim 1, characterized in that: A plurality of the positioning openings (5) are arranged at intervals, and the plurality of positioning openings (5) are arranged at equal distances on the side of the annular shell.

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