Assembled air conditioner air pipe

Abstract

The utility model discloses an assembled air conditioner air pipe, including air conditioner air pipe body, the air conditioner air pipe body is assembled by the opposite setting of a pair of first heat preservation board and the opposite setting of a pair of second heat preservation board, the air conditioner air pipe body both ends are provided with first flange and second flange, a plurality of air conditioner air pipe body is assembled into air conditioner air pipe through first flange and second flange in proper order, the first heat preservation board upper edge part is equipped with the clamping slot of accommodating first fixed clamp, the second heat preservation board edge portion device has the second fixed clamp of inserting into first fixed clamp, first fixed clamp and second fixed clamp edge part are provided with the first fixed sheet and second fixed sheet of the mutual overlap of can and through a plurality of first fixed bolt connection respectively, the utility model discloses the assembled air conditioner air pipe has the advantages that the on -the -spot assembling efficiency is high and the good advantage of air leakage prevention performance.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning duct technology, and in particular to an assembled air conditioning duct. Background Technology

[0002] Large air conditioning systems widely use square pipes for cold and hot air ducts. One half of the pipe is made of galvanized sheet metal with a square cross-section. Then, insulation material is wrapped around the outside of the pipe. Finally, galvanized sheet metal or fireproof board is wrapped around the insulation material for protection. It is an integrated segmented structure, and most of the process requires on-site construction and installation.

[0003] Transporting assembled air conditioning ducts to the site is costly and limited in capacity due to their large volume and limited capacity per vehicle. Assembling the ducts on-site using insulation panels presents the following problems:

[0004] 1. Poor quality consistency: On-site construction requires high technical skills from personnel, resulting in poor consistency in construction quality;

[0005] 2. High labor costs: The on-site workload is large, resulting in high labor costs;

[0006] 3. Long construction period: Most of the work requires on-site construction operations, and the on-site construction period is long.

[0007] 4. Lack of air leakage prevention measures: The existing connection and combination methods cannot guarantee the air leakage prevention quality of air conditioning pipes.

[0008] The prior art, Chinese utility model patent with patent publication number CN203273046U, discloses a composite duct anti-leakage structure, including composite plate A, composite plate B, composite plate C, composite plate D, corner-wrapping component A, corner-wrapping component B, corner-wrapping component C, and corner-wrapping component D. The upper end of composite plate D is connected to the left end of composite plate A by corner-wrapping component A, the right end of composite plate A is connected to the upper end of composite plate B by corner-wrapping component B, the lower end of composite plate B is connected to the right end of composite plate C by corner-wrapping component C, and the left end of composite plate C is connected to the lower end of composite plate D by corner-wrapping component D.

[0009] Although it has a leak-proof structure and a connection structure, the alignment and fixing of the insulation board during on-site assembly is cumbersome. It requires one person to fix it and another person to hold it, and at least two people are needed to perform the assembly operation, which results in low overall assembly efficiency.

[0010] Therefore, how to improve the efficiency of on-site assembly of air conditioning pipes and ensure air leakage prevention are technical problems that urgently need to be solved by those skilled in the art. Utility Model Content

[0011] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a modular air conditioning duct to improve the on-site installation efficiency of modular air conditioning ducts.

[0012] To achieve the above objectives, this utility model provides an assembled air conditioning duct, including an air conditioning duct body. The air conditioning duct body is assembled from a pair of first insulation boards and a pair of second insulation boards arranged opposite to each other. A first flange and a second flange are respectively provided at both ends of the air conditioning duct body. Multiple air conditioning duct bodies are assembled sequentially through the first flange and the second flange to form an air conditioning duct. The upper edge of the first insulation board is provided with a groove for accommodating a first fixing clamp. The edge of the second insulation board is provided with a second fixing clamp that is inserted into the first fixing clamp. The edges of the first fixing clamp and the second fixing clamp are respectively provided with a first fixing piece and a second fixing piece that can overlap each other and are connected by multiple first fixing bolts.

[0013] The working process and principle of the above structure are as follows:

[0014] First, the first fixing clamp is pre-installed in the slot. The first fixing clamp and the slot are the same length, making installation and alignment convenient. During on-site assembly, the second fixing clamp is installed on both sides of the second insulation board. At the same time, the second fixing clamp is quickly slid into the first fixing clamp, making positioning and installation quick and convenient. The outer surface of the second fixing clamp is tightly fitted with the inner surface of the first fixing clamp to ensure the sealing of the connection. The second fixing piece is aligned and fitted with the first fixing piece. Then, the first fixing piece, the second fixing piece, and the second insulation board are fixed together by the first fixing bolt passing through the fixing round hole, achieving rapid fixed assembly. The two first insulation boards and the two second insulation boards are quickly assembled into a rectangular pipe, improving the overall assembly efficiency. A single person can complete the entire work, greatly improving the overall installation efficiency and saving labor costs. At the same time, the first fixing clamp and the second fixing clamp, through the fitting of the first fixing piece and the second fixing piece, achieve the setting of an air leakage prevention structure, ensuring the air leakage prevention performance of the air conditioning duct.

[0015] Furthermore, the cross-section of the slot is dovetail-shaped, and both the first fixing clamp and the second fixing clamp are dovetail-shaped structures.

[0016] The dovetail-shaped slot, the first fixing clamp, and the second fixing clamp structure make the connection and limit tighter, the contact surface larger, and enhance their airtight sealing properties. At the same time, positioning is more convenient and quick, and it can play a preliminary fixing role before the final bolts are tightened during installation.

[0017] Furthermore, the first fixing clamp and the slot are fixedly connected by bolts.

[0018] The first fixing clamp and the slot are fixed at the factory with bolts, which eliminates the tedious process of on-site assembly to ensure sealing and does not take up transportation space.

[0019] Furthermore, the width of the second fixing piece is greater than the width of the first fixing piece.

[0020] The width of the second fixing piece is greater than that of the first fixing piece, which is mainly to facilitate the second fixing clamp and the fixed connection between the second fixing piece and the second insulation board.

[0021] Furthermore, a stepped inner corner strip connects the first and second insulation boards. The inner corner strip is tightly fitted with the first fixing piece, the second fixing piece, and the first insulation board. The length of the inner corner strip is the same as the length of the first insulation board. Several second fixing bolts are connected between the inner corner strip and the portion of the second fixing piece that extends beyond the length of the first fixing piece. The second fixing bolts pass through the second insulation board, and the first fixing bolts pass through the inner corner strip to fix the first fixing piece, the second fixing piece, and the second insulation board. Several third fixing bolts are provided on the portion of the inner corner strip that fits against the first insulation board. The third fixing bolts connect and fix the inner corner strip to the first insulation board.

[0022] The stepped inner corner strip covers the first and second fixing pieces, and covers the right angle of the first and second insulation boards, providing a second layer of airtight sealing. At the same time, it increases the contact area with the first and second fixing pieces, increasing the firmness of the connection and support. Furthermore, it achieves a right angle connection between the first and second insulation boards, ensuring the connection strength between them.

[0023] Furthermore, the edge of the portion of the inner corner strip that contacts the second fixing piece is bent outward vertically to abut against the second insulation board, thereby covering the second fixing piece between the second insulation board and the inner corner strip.

[0024] The vertical bend can serve both to limit and position the device during installation, and also to provide a further seal.

[0025] Furthermore, a sealing strip is provided between the inner side of the second fixing piece and the second insulation board.

[0026] The sealing strip enhances the sealing performance between the second fixing plate and the second insulation board.

[0027] Furthermore, a sealing protrusion ring is formed on the first flange along its circumference, and a sealing groove is formed on the second flange at the position corresponding to the sealing protrusion ring, wherein the sealing protrusion ring can be embedded in the sealing groove.

[0028] The sealing protrusion ring and sealing groove increase the sealing performance of the connection between the first flange and the second flange, while also enabling quick installation and positioning.

[0029] Furthermore, a sealing gasket is provided along the surface of the sealing protrusion ring, and a sealing gasket is also provided on the bottom surface of the sealing groove.

[0030] The sealing gasket enhances the seal between the sealing protrusion ring and the sealing groove.

[0031] Furthermore, lifting holes are provided at the corners of the first and second flanges.

[0032] The installation of the mounting holes increases the convenience of the final installation of the air conditioning pipes.

[0033] The modular air conditioning duct of this invention first pre-installs a first fixing clamp in a slot. The first fixing clamp and the slot are of the same length, making installation and alignment convenient. During on-site assembly, the second fixing clamp is installed on both sides of the second insulation board. Simultaneously, the second fixing clamp is quickly slid into the first fixing clamp, making positioning and installation quick and convenient. The outer surface of the second fixing clamp is tightly fitted with the inner surface of the first fixing clamp, ensuring a tight seal. The second fixing piece is aligned and fitted with the first fixing piece. Then, the first fixing piece, the second fixing piece, and the second insulation board are fixed together using the first fixing bolt passing through the fixing hole, achieving rapid fixed assembly. The two first insulation boards and two second insulation boards are quickly assembled into a rectangular duct, improving the overall assembly efficiency. A single person can complete the entire work, greatly improving the overall installation efficiency and saving labor costs. At the same time, the first fixing clamp and the second fixing clamp, through the fitting of the first fixing piece and the second fixing piece, achieve the setting of an air leakage prevention structure, ensuring the air conditioning duct's air leakage prevention performance.

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0036] Figure 1 A three-dimensional structural diagram of an assembled air conditioning duct provided for an embodiment of this utility model;

[0037] Figure 2 This is a front view of the assembled structure of the pipes in an assembled air conditioning duct provided in an embodiment of the present utility model;

[0038] Figure 3 for Figure 2 Enlarged view of the structure of A in the middle;

[0039] Figure 4 This is a front view of the structure of the second flange in an assembled air conditioning duct provided in an embodiment of the present utility model.

[0040] The components are: 1. First insulation board; 2. Second insulation board; 3. Slot; 4. First fixing clamp; 5. First fixing piece; 6. Second fixing clamp; 7. Second fixing piece; 8. First fixing bolt; 9. First flange; 10. Second flange; 11. Inner corner strip; 12. Second fixing bolt; 13. Third fixing bolt; 14. Sealing strip; 15. Lifting hole; 16. Sealing protrusion ring; 17. Sealing groove; 18. Sealing gasket. Detailed Implementation

[0041] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0042] The core of this utility model is to provide an assembled air conditioning duct to improve the effective load-bearing capacity of the assembled air conditioning duct.

[0043] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0044] Please refer to Figures 1 to 4 The present invention discloses an assembled air conditioning duct, comprising two first insulation boards 1 and two second insulation boards 2;

[0045] Each first insulation board 1 has two parallel slots 3 symmetrically arranged on the same side. The two ends of the slots 3 are connected. Each slot 3 is provided with a first fixing clamp 4 that fits against the inner wall of the slot 3. The first fixing clamp 4 has the same length as the slot 3. The two edges of the opening of the first fixing clamp 4 extend outward from the slot 3 to form a first fixing piece 5. The two first fixing pieces 5 are arranged in parallel.

[0046] Each of the two symmetrical edges of the second insulation board 2 is provided with a second fixing clamp 6. The two edges of the opening of the second fixing clamp 6 extend into the second fixing piece 7. The two second fixing pieces 7 are arranged in parallel and are fixed at the edge of the second insulation board 2. The distance between the two second fixing pieces 7 is the same as the thickness of the second insulation board 2. The two sides of the second insulation board 2 extend into the interior of the second fixing clamp 6. The interior of the second fixing clamp 6 can be pre-filled with sealant in the factory to further ensure sealing and connection firmness. The second fixing clamp 6 is fixed in the first fixing clamp 4 and the outer wall of the second fixing clamp 6 is tightly fitted with the inner wall of the first fixing clamp 4. The outer surfaces of the two second fixing pieces 7 are fitted with the inner surfaces of the two first fixing pieces 5. A row of fixing round holes (not shown in the figure) is provided at the corresponding positions of the second insulation board 2, the first fixing piece 5, and the second fixing piece 7. The fixing round holes are provided with first fixing bolts 8. The first fixing bolts 8 pass through the first fixing piece 5, the second fixing piece 7, and the second insulation board 2 in sequence and connect and fix them together.

[0047] Two first insulation boards 1 are arranged opposite each other with slots 3 on one side. The two ends of the two second insulation boards 2 are respectively connected to the slots 3 of the two first insulation boards 1 to form a rectangular structure. The two ends of the rectangular structure are respectively provided with a first flange 9 and a second flange 10.

[0048] The working process and principle of the above structure are as follows:

[0049] First, the first fixing clamp 4 is pre-installed in the groove 3. The first fixing clamp 4 and the groove 3 are the same length, making installation and alignment convenient. During on-site assembly, the second fixing clamp 6 is installed on both sides of the second insulation board 2. At the same time, the second fixing clamp 6 is quickly slid into the first fixing clamp 4, making positioning and installation quick and convenient. The outer surface of the second fixing clamp 6 is tightly fitted with the inner surface of the first fixing clamp 4 to ensure the sealing of the connection. The second fixing piece 7 is aligned and fitted with the first fixing piece 5. Then, the first fixing piece 5, the second fixing piece 7, and the second insulation board 2 are fixed together by the first fixing bolt 8 passing through the fixing round hole, achieving rapid fixed assembly. The two first insulation boards 1 and the two second insulation boards 2 are quickly assembled to form a rectangular pipe, improving the overall assembly efficiency. A single person can complete all the work, greatly improving the overall installation efficiency and saving labor costs. At the same time, the first fixing clamp 4 and the second fixing clamp 6, through the fitting of the first fixing piece 5 and the second fixing piece 7, achieve the setting of an air leakage prevention structure, ensuring the air leakage prevention performance of the air conditioning duct.

[0050] In another embodiment of this utility model, such as Figure 2 As shown, the cross-section of the slot 3 is dovetail-shaped, and both the first fixing clamp 4 and the second fixing clamp 6 are dovetail-shaped structures.

[0051] The dovetail-shaped slot 3, the first fixing clamp 4, and the second fixing clamp 6 make the connection and limiting tighter, the contact surface larger, and enhance their airtight sealing properties. At the same time, positioning is more convenient and quick, and it can play a preliminary fixing role before the final bolts are tightened during installation.

[0052] In another embodiment of this utility model, the first fixing clamp 4 and the groove 3 are fixedly connected by bolts.

[0053] The first fixing clamp 4 and the slot 3 are fixed at the factory by bolts, which saves the trouble of on-site assembly to ensure sealing and does not take up transportation space.

[0054] In another embodiment of this utility model, such as Figures 1-3 As shown, the width of the second fixing piece 7 is greater than the width of the first fixing piece 5, and the lengths of the second fixing piece 7 and the first fixing piece 5 are the same.

[0055] The width of the second fixing piece 7 is greater than the width of the first fixing piece 5, which mainly facilitates the fixing of the second fixing clamp 6 and the fixing connection between the second fixing piece 7 and the second insulation board 2.

[0056] In another embodiment of this utility model, such as Figures 1-4 As shown, a stepped inner corner strip 11 connects the first insulation board 1 and the second insulation board 2. The length of the inner corner strip 11 is the same as the length of the first insulation board 1 and the second insulation board 2. The overall structure of the inner corner strip 11 is an angle steel structure. The part that connects to the second insulation board 2 is stepped. The inner corner strip 11 is tightly fitted with the first fixing piece 5, the second fixing piece 7 and the first insulation board 1. The length of the inner corner strip 11 is the same as the length of the first insulation board 1. Several second fixing bolts 12 are connected between the inner corner strip 11 and the part of the second fixing piece 7 that extends beyond the length of the first fixing piece 5. The second fixing bolts 12 pass through the second insulation board 2. The first fixing bolts 8 pass through the inner corner strip 11 to fix the first fixing piece 5, the second fixing piece 7 and the second insulation board 2. Several third fixing bolts 13 are provided on the part of the inner corner strip 11 that fits against the first insulation board 1. The third fixing bolts 13 connect and fix the inner corner strip 11 to the first insulation board 1.

[0057] The stepped inner corner strip 11 covers the first fixing piece 5 and the second fixing piece 7, and covers the right angle of the first insulation board 1 and the second insulation board 2, providing a second layer of air-proof sealing. At the same time, it increases the contact area with the first fixing piece 5 and the second fixing piece 7, increasing the firmness of the connection and support. Furthermore, it further connects the first insulation board 1 and the second insulation board 2 at a right angle, ensuring the connection strength between them.

[0058] In another embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the edge of the part of the inner corner strip 11 that contacts the second fixing piece 7 is bent outward vertically to abut against the second insulation board 2, so that the second fixing piece 7 covers the space between the second insulation board 2 and the inner corner strip 11.

[0059] The vertical bend can serve both to limit and position the device during installation, and also to provide a further seal.

[0060] In another embodiment of this utility model, such as Figure 2 and Figure 3 As shown, a sealing strip 14 is provided between the inner side of the second fixing piece 7 and the second insulation board 2, and the length of the sealing strip 14 is the same as the length of the second fixing piece 7.

[0061] The sealing strip 14 increases the sealing performance between the second fixing piece 7 and the second insulation board 2.

[0062] In another embodiment of this utility model, such as Figures 1-4 As shown, a sealing protrusion ring 16 is formed on the first flange 9 along its circumference. The sealing protrusion ring 16 has a rectangular ring structure. A sealing groove 17 is provided on the second flange 10 at the position corresponding to the sealing protrusion ring. The sealing protrusion ring 16 can be embedded in the sealing groove 17.

[0063] The sealing protrusion ring 16 and sealing groove 17 increase the sealing performance of the connection between the first flange 9 and the second flange 10, and also enable quick installation and positioning.

[0064] In another embodiment of this utility model, such as Figure 4 As shown, a sealing gasket 18 is provided along the surface of the sealing protrusion ring 16, and a sealing gasket 18 is also attached to the bottom surface of the sealing groove 17.

[0065] The sealing gasket 18 enhances the sealing performance between the sealing protrusion ring 16 and the sealing groove 17.

[0066] In another embodiment of this utility model, such as Figure 1 and Figure 4 As shown, lifting holes 15 are provided at the corners of the first flange 9 and the second flange 10.

[0067] The installation of the 15 mounting hole increases the convenience of the final installation of the air conditioning pipes.

[0068] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0069] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0070] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0071] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0072] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0073] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0074] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An assembled air conditioning duct, characterized in that, The air conditioning duct body is assembled from a pair of first insulation boards (1) and a pair of second insulation boards (2) arranged opposite to each other. A first flange (9) and a second flange (10) are respectively provided at both ends of the air conditioning duct body. Multiple air conditioning duct bodies are assembled into an air conditioning duct by sequentially using the first flange (9) and the second flange (10). The upper edge of the first insulation board (1) is provided with a slot (3) for accommodating the first fixing clamp (4), and the edge of the second insulation board (2) is provided with a second fixing clamp (6) that is inserted into the first fixing clamp (4). The edges of the first fixing clamp (4) and the second fixing clamp (6) are respectively provided with a first fixing piece (5) and a second fixing piece (7) that can overlap each other and be connected by multiple first fixing bolts (8).

2. The assembled air conditioning duct as described in claim 1, characterized in that, The cross-section of the slot (3) is dovetail-shaped, and the cross-sections of the first fixing clamp (4) and the second fixing clamp (6) are both dovetail-shaped structures.

3. The assembled air conditioning duct as described in claim 2, characterized in that, The first fixing clamp (4) and the slot (3) are fixedly connected by bolts.

4. The assembled air conditioning duct as described in claim 1, characterized in that, The width of the second fixing piece (7) is greater than the width of the first fixing piece (5).

5. The assembled air conditioning duct as described in claim 4, characterized in that, A stepped inner corner strip (11) connects the first insulation board (1) and the second insulation board (2). The inner corner strip (11) is tightly fitted with the first fixing piece (5), the second fixing piece (7) and the first insulation board (1). The length of the inner corner strip (11) is the same as the length of the first insulation board (1). A plurality of second fixing bolts (12) are connected between the inner corner strip (11) and the part of the second fixing piece (7) that extends beyond the length of the first fixing piece (5). The second fixing bolts (12) pass through the second insulation board (2). The first fixing bolts (8) pass through the inner corner strip (11) to fix the first fixing piece (5), the second fixing piece (7) and the second insulation board (2). A plurality of third fixing bolts (13) are provided on the part of the inner corner strip (11) that fits with the first insulation board (1). The third fixing bolts (13) connect and fix the inner corner strip (11) to the first insulation board (1).

6. The assembled air conditioning duct as described in claim 5, characterized in that, The edge of the part of the inner corner strip (11) that contacts the second fixing piece (7) is bent outward vertically to abut against the second insulation board (2), so that the second fixing piece (7) covers the space between the second insulation board (2) and the inner corner strip (11).

7. The assembled air conditioning duct as described in claim 6, characterized in that, A sealing strip (14) is provided between the inner side of the second fixing piece (7) and the second insulation board (2).

8. The assembled air conditioning duct as described in claim 1, characterized in that, The first flange (9) has a sealing protrusion ring (16) formed along its circumference, and the second flange (10) has a sealing groove (17) at the position corresponding to the sealing protrusion ring (16), and the sealing protrusion ring (16) can be embedded in the sealing groove (17).

9. The assembled air conditioning duct as described in claim 8, characterized in that, A sealing gasket (18) is provided along the surface of the sealing protrusion ring (16), and a sealing gasket (18) is also provided on the bottom surface of the sealing groove (17).

10. The assembled air conditioning duct as described in claim 8, characterized in that, Lifting holes (15) are provided at the corners of the first flange (9) and the second flange (10).

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