Fastening tool, embedded part assembling structure with same and honeycomb embedded structure

Abstract

The utility model discloses a fastening tool, an embedded part assembling structure with the fastening tool and a honeycomb embedded structure with the fastening tool, and relates to the technical field of honeycomb plates. Comprising a tool body and a locking piece, the tool body comprises a connecting section, an assembling section and a fixing section, and the connecting section, the assembling section and the fixing section are sequentially arranged in the length direction of the tool body; the cross sectional area of the fixing section is larger than that of the assembling section, and the cross sectional area of the assembling section is larger than that of the connecting section; a connecting hole is formed in the locking piece, the connecting section of the tool body is arranged in the connecting hole of the locking piece, and the locking piece is detachably connected with the connecting section. The fastening tool has the advantages that the embedded part can be fixed in the transverse direction and the vertical direction, and the curing effect of the embedded part and the honeycomb core is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to honeycomb board technical field, in particular to a fastening tool and have its embedded part assembly structure and honeycomb pre -buried structure. BACKGROUND

[0002] Aluminum panel-aluminum honeycomb sandwich structure board (hereinafter referred to as "honeycomb board") is the main structural component of satellite product, and most satellite functional load products need to be installed on the honeycomb board, so a large number of holes need to be configured on the honeycomb core in the board to fix the embedded parts, and the embedded parts are used to install the load products, and the relative position and size precision between the embedded parts are required to be high.

[0003] In order to meet the high-precision embedded part spacing size requirement, the positioning pin is first inserted into the mold plate through the embedded part, then the end of the positioning pin away from the embedded part is fixed to the mold plate through the nut, then the mold plate with the fixed embedded part is attached to the honeycomb core, the embedded part and the honeycomb core are bonded by using the adhesive, and after curing, the mold plate and the screw are removed to form an integrated honeycomb board structure.

[0004] However, at present, the embedded part is positioned by the positioning pin, and since the diameter of the positioning pin is consistent with the corresponding hole diameter on the embedded part, the positioning pin can only fix the embedded part in the horizontal direction, and cannot fix the embedded part in the vertical direction, and in the subsequent curing process of the adhesive, the adhesive will expand, causing the embedded part to be squeezed in the honeycomb core, and the embedded part will jump upward under the squeezing action, finally resulting in poor bonding effect of the honeycomb core and the embedded part, and due to the jumping of the embedded part, there is a small gap between the embedded part and the parts in contact with the embedded part, and the adhesive will overflow the surface of the honeycomb board through the gap, affecting the appearance of the product, causing the local surface of the product to be higher than the remaining positions, and in severe cases, it can even cause the product to be scrapped due to out-of-tolerance flatness. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a fastening tool and embedded part assembly structure and honeycomb pre-buried structure with the same, which can firmly fix the embedded part in the horizontal and vertical directions and prevent the embedded part from jumping up and down in the honeycomb core.

[0006] The utility model provides a fastening tool, including tool body and locking piece, the tool body includes connecting section, assembly section and fixed section, the connecting section, the assembly section and the fixed section are sequentially arranged along the length direction of the tool body, the cross section area of the fixed section is greater than the cross section area of the assembly section, the cross section area of the assembly section is greater than the cross section area of the connecting section, the connecting hole is set up on the locking piece, the connecting section of the tool body is located in the connecting hole of the locking piece, and the locking piece and the connecting section are detachably connected.

[0007] Optionally, the outer peripheral wall of the connecting section is provided with a thread, the connecting hole of the locking piece is a threaded hole, and the connecting section is threadedly connected with the locking piece.

[0008] Optionally, the fixing section has opposite first and second ends, the fixing section is connected with the assembling section through the first end, and the second end of the fixing section is provided with a straight recess.

[0009] Optionally, the fixing section, the assembling section and the connecting section are cylindrical.

[0010] Optionally, the connecting hole on the locking piece penetrates the locking piece.

[0011] The utility model also provides a kind of embedded part assembly structure, including first mould plate, first embedded part and the fastening tool as described above, the first embedded part is provided with the first stepped hole that penetrates the first embedded part, the first stepped hole includes first hole and second hole, the diameter of the first hole is greater than the diameter of the second hole, mounting hole is provided on the first mould plate, the first embedded part is located on the first mould plate and the second hole of the first embedded part is closer to the first mould plate, the connecting section of the fastening tool is arranged in the mounting hole, the size of the mounting hole is less than the cross-sectional dimension of the assembling section of the fastening tool, the assembling section of the fastening tool is located in the second hole of the first embedded part and the assembling section is identical in size with the second hole.

[0012] Optionally, the size of the mounting hole of the first mould plate is identical with the size of the connecting section of the fastening tool.

[0013] Optionally, it further includes second mould plate and second embedded part, the second mould plate is parallel to the first mould plate;The second embedded part is provided with the second stepped hole that penetrates the second embedded part, the second stepped hole includes third hole and fourth hole, the diameter of the third hole is greater than the diameter of the fourth hole, fixing hole is provided on the second mould plate, the second embedded part is located on the second mould plate and the fourth hole of the second embedded part is closer to the second mould plate, the connecting section of the fastening tool is arranged in the fixing hole, the size of the fixing hole is less than the cross-sectional dimension of the assembling section of the fastening tool, the assembling section of the fastening tool is located in the fourth hole of the second embedded part and the assembling section is identical in size with the fourth hole.

[0014] Optionally, it further includes third mould plate, the third mould plate is located on the side of the first mould plate and / or second mould plate away from corresponding embedded part, the third mould plate is provided with avoiding hole, the locking piece and the connecting section of the fastening tool are located in the avoiding hole.

[0015] The utility model also provides a honeycomb pre -buried structure, including honeycomb core and the embedded part assembly structure as above -mentioned, a plurality of positioning holes are seted up on the honeycomb core, the first embedded part and / or the second embedded part are located in the positioning hole, the first mould plate and the second mould plate are located two sides of the honeycomb core respectively.

[0016] The fastening tool, the embedded part assembly structure and the honeycomb pre-buried structure provided by the utility model can fix the embedded part in the horizontal direction and the vertical direction, can avoid the relative up-down movement of the embedded part and the honeycomb core when the embedded part and the honeycomb core are bonded by the adhesive, and guarantee the quality of the formed honeycomb plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained according to these drawings without the creative labor.

[0018] Figure 1 It is a structure schematic view of a fastening tool in the utility model.

[0019] Figure 2 It is a sectional view of a fastening tool in the utility model.

[0020] Figure 3 It is a structure schematic view of an embedded part assembly structure in the utility model.

[0021] Figure 4 It is a sectional view of an embedded part assembly structure in the utility model.

[0022] Figure 5 It is a sectional view of the first embedded part / second embedded part in the embedded part assembly structure of the utility model.

[0023] Figure 6 It is the assembly schematic view of the first embedded part and the second embedded part in the embedded part assembly structure of the utility model.

[0024] Figure 7 It is the structure schematic view of the third mould plate in the embedded part assembly structure of the utility model.

[0025] Figure 8 It is the sectional view of the third mould plate in the embedded part assembly structure of the utility model.

[0026] In the drawing:

[0027] Fastening tool 1, tool body 10, fixed section 11, straight groove 111, assembly section 12, connecting section 13, locking piece 14;

[0028] First embedded part 20, first stepped hole 21, second hole 211, first hole 212;

[0029] First mold plate 30, mounting hole 31;

[0030] Second mold plate 40, fixing hole 41;

[0031] Second embedded part 50, second stepped hole 51, fourth hole 511, third hole 512;

[0032] Third mold plate 60, avoiding hole 61. DETAILED DESCRIPTION

[0033] The specific embodiments of the present application will be described below in detail with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the description of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Unless otherwise explicitly specified and limited, the terms "arranged", "mounted", "connected" and the like should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0035] The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of description and simplification of description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] The terms "first", "second", "third" and the like are only for distinguishing similar attributes of elements, and do not indicate or imply relative importance or a particular order.

[0037] The terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, in addition to including the listed elements, other elements not explicitly listed can also be included.

[0038] As Figure 1and Figure 2 As shown in the drawings, the embodiment provides a fastening tool 1, which comprises a tool body 10 and a locking piece 14. The tool body 10 comprises a connecting section 13, an assembling section 12 and a fixing section 11, which are sequentially arranged along the length direction of the tool body 10 and are in an integrated structure. The cross-sectional area of the fixing section 11 is larger than that of the assembling section 12, and the cross-sectional area of the assembling section 12 is larger than that of the connecting section 13. The locking piece 14 is provided with a connecting hole, the connecting section 13 of the tool body 10 is arranged in the connecting hole of the locking piece 14, and the locking piece 14 is detachably connected with the connecting section 13.

[0039] When the fastening tool 1 is used to fix the embedded part, the tool body 10 is arranged in the hole of the embedded part, so that the connecting section 13 of the tool body 10 passes through the hole of the embedded part and the assembling section 12 of the tool body 10 is located in the hole of the embedded part. After the connecting section 13 of the tool body 10 passes through the hole of the embedded part and the through hole of the mold plate, the connecting section 13 is fixedly connected with the locking piece 14. The through hole of the mold plate is arranged to have a size smaller than that of the assembling section 12 of the tool body 10, so that the tool body 10 is limited by the locking piece 14 and the assembling section 12 at both ends of the mold plate, and the tool body 10 is kept fixed relative to the mold plate. In addition, the fixing section 11 of the tool body 10 abuts against the embedded part, so that the embedded part is limited in the vertical direction. Since the tool body 10 is arranged in the embedded part, the tool body 10 also limits the embedded part in the horizontal direction, so that the embedded part and the mold plate are kept fixed. When the embedded part is subsequently embedded in the honeycomb core and solidified, the embedded part can be prevented from moving up and down in the honeycomb core.

[0040] For example, the fixing section 11, the assembling section 12 and the connecting section 13 are in a cylindrical shape. The shapes of the assembling section 12 and the fixing section 11 can also be adapted according to the specific shape of the embedded part.

[0041] For example, the outer peripheral wall of the connecting section 13 is provided with a thread, the connecting hole of the locking piece 14 is a threaded hole, and the connecting section 13 is threadedly connected with the locking piece 14, so that the connecting section 13 is detachably connected with the locking piece 14, and the locking piece 14 can limit the tool body 10 on one side of the mold plate.

[0042] Further, the connecting hole of the locking piece 14 penetrates through the locking piece 14. In this way, the locking piece 14 can also advance or retreat along the thread, and the moving path is longer, which is more suitable for fixing the tool body 10 on the mold plate.

[0043] Further, the fixed segment 11 has opposite first and second ends, the fixed segment 11 is connected with the assembly segment 12 through the first end, and the second end of the fixed segment 11 is provided with a straight recess 111. The straight recess 111 can facilitate cooperation with other tooling to rotate or move the tooling body 10, thereby facilitating assembly of the tooling body 10.

[0044] In summary, the fastening tool 1 can fix the embedded parts in the horizontal and vertical directions, ensure that the embedded parts and the honeycomb core do not move relative to each other during the curing process, and ensure the curing effect.

[0045] As shown in FIG. Figures 3 to 5 The embedded part assembly structure further includes a first mold plate 30, a plurality of first embedded parts 20, and a plurality of fastening tools 1 as described above. The first embedded part 20 is provided with a first stepped hole 21 penetrating the first embedded part 20, the first stepped hole 21 includes a first hole 212 and a second hole 211, the diameter of the first hole 212 is greater than the diameter of the second hole 211, the first mold plate 30 is provided with a plurality of mounting holes 31, one first embedded part 20 and one fastening tool 1 are installed corresponding to one mounting hole 31. The first embedded part 20 is located on the first mold plate 30, and the second hole 211 of the first embedded part 20 is closer to the first mold plate 30. The connecting segment 13 of the tooling body 10 is inserted into the mounting hole 31 of the first mold plate 30, the size of the mounting hole 31 is smaller than the cross-sectional size of the assembly segment 12 of the tooling body 10, and the locking member 14 is matched to fix the tooling body 10 and the first mold plate 30. The assembly segment 12 of the tooling body 10 of the fastening tool 1 is located in the second hole 211 of the first embedded part 20, and the size of the assembly segment 12 is the same as that of the second hole 211. Since the cross-sectional size of the fixed segment 11 of the tooling body 10 is greater than that of the assembly segment 12, the cross-sectional size of the fixed segment 11 is greater than that of the second hole 211 of the first embedded part 20. The fixed segment 11 can be located in the first hole 212 of the first embedded part 20 and abut against the second hole 211 of the first embedded part 20, limiting the first embedded part 20 in the vertical direction, so that the fastening tool 10 can limit the first embedded part 20 in the horizontal and vertical directions, preventing the first embedded part 20 from moving during the subsequent curing process with the honeycomb core.

[0046] The embedded part assembly structure provided in the embodiment can fix a plurality of first embedded parts 20 according to the required relative positions of the first embedded parts 20 through a first mold plate 30, then install the plurality of first embedded parts 20 in alignment with the embedded part holes on the honeycomb core, fix the plurality of first embedded parts 20, and then cure the first embedded parts 20 with the honeycomb core, so that the plurality of first embedded parts 20 remain fixed in the honeycomb core during the curing process and do not move in the horizontal or vertical directions.

[0047] Furthermore, the size of the mounting hole 31 of the first mold plate 30 is the same as the size of the connecting section 13 of the fastening fixture 1. This makes it easier to maintain the relative fixation between the fastening fixture 1 and the first mold plate 30 when the fastening fixture 1 is installed on the first mold plate 30, making the installation more convenient.

[0048] Preferably, the mounting hole 31 of the first mold plate 30 is a threaded hole, which, when combined with the locking member 14 and the connecting section 13 of the tooling body 10, can more firmly fix the first mold plate 30 to the fastening tooling 1.

[0049] When the functional load product is installed in the honeycomb panel through the first embedded part 20, its orientation varies depending on the usage requirements. It may face upward or downward in the honeycomb panel. However, in the traditional fixing method, the embedded part can only be fixed in the horizontal direction and cannot be fixed in the vertical direction to allow the embedded part to move vertically. When the functional load product needs to be installed in the opposite direction, such as when the functional load product is installed at the bottom, the embedded part needs to be installed at the bottom. At this time, the embedded part may fall off due to the lack of vertical fixation. Therefore, this structure cannot accommodate the situation of installing the embedded part from two different directions.

[0050] Therefore, such as Figure 6 As shown, the embedded part assembly structure provided in this embodiment also includes a second mold plate 40 and a second embedded part 50. The second mold plate 40 is parallel to the first mold plate 30, and the first embedded part 20 and the second embedded part 50 are located between the first mold plate 30 and the second mold plate 40. A second stepped hole 51 is provided on the second embedded part 50, which includes a third hole 512 and a fourth hole 511. The diameter of the third hole 512 is larger than the diameter of the fourth hole 511. A fixing hole 41 is provided on the second mold plate 40. The second embedded part 50 is located on the second mold plate 40, and the fourth hole 511 of the second embedded part 50 is closer to the second mold plate 40. The connecting section 13 of the fastening fixture 1 passes through the fixing hole 41. The size of the fixing hole 41 is smaller than the cross-sectional size of the assembly section 12 of the fastening fixture 1. The assembly section 12 of the fastening fixture 1 is located on the second embedded part 50. In the fourth hole 511 of the second embedded part 50, and the assembly section 12 has the same size as the fourth hole 511, since the cross-sectional size of the fixing section 11 of the tooling body 10 is larger than the cross-sectional size of the assembly section 12, the cross-sectional size of the fixing section 11 is larger than the size of the fourth hole 511 of the second embedded part 50. The fixing section 11 can be located in the third hole 512 of the second embedded part 50 and abut against the fourth hole 511 of the second embedded part 50, thereby limiting the second embedded part 50 vertically, thus limiting the second embedded part 50 in both the lateral and vertical directions, preventing the second embedded part 50 from moving during the subsequent curing process with the honeycomb core.

[0051] Since the fastening tool 1 can limit the second embedded part 50 in the horizontal direction and the vertical direction, when the first embedded part 20 and the second embedded part 50 are opposite to each other, the fastening tool 1 can firmly fix the first embedded part 20 and the second embedded part 50 on the first mold plate 30 and the second mold plate 40, and the first embedded part 20 or the second embedded part 50 will not slide on the first mold plate 30 or the second mold plate 40 due to gravity.

[0052] The first embedded part 20 and the second embedded part 50 are of the same structure, and the first mold plate 30 and the second mold plate 40 are of the same structure, and they are described separately for the convenience of description.

[0053] Further, as shown in Figs. 1 and 2, the embedded part assembly structure provided by the embodiment comprises a fastening tool 1, the fastening tool 1 comprises a base 10 and a connecting segment 13, the base 10 is connected to the connecting segment 13, and the connecting segment 13 is provided with a locking piece 14. Figure 7 Figure 8 As shown in Figs. 1 and 2, the embedded part assembly structure provided by the embodiment further comprises a third mold plate 60, the third mold plate 60 is located on the side of the first mold plate 30 and / or the second mold plate 40 away from the embedded part, the third mold plate 60 is provided with a avoiding hole 61, and the locking piece 14 and the connecting segment 13 of the fastening tool 1 are located in the avoiding hole 61. In this way, the stability of the overall structure is ensured during assembly.

[0054] In summary, the embedded part assembly structure provided by the embodiment can firmly fix a plurality of first embedded parts 20 and second embedded parts 50 before being assembled with a honeycomb core, and during the curing process of the first embedded part 20 and the second embedded part 50 and the honeycomb core, the first embedded part 20 and the second embedded part 50 are always fixed in the honeycomb core and will not jump in the honeycomb core, thereby avoiding the problem that a micro gap exists between the embedded part and the part in contact with the embedded part, overcoming the problem that the adhesive overflows the surface of the honeycomb panel through the gap, affecting the appearance of the product, causing the surface of the product to be locally higher than the remaining positions, and leading to product scrap.

[0055] Further, the embodiment further provides a honeycomb pre-buried structure, which comprises a honeycomb core and the embedded part assembly structure as described above, the honeycomb core is provided with a plurality of positioning holes, the first embedded part 20 and / or the second embedded part 50 are located in the positioning holes, and the first mold plate 30 and the second mold plate 40 are respectively located on the two sides of the honeycomb core.

[0056] In summary, the fastening tool 1, the embedded part assembly structure and the honeycomb pre-buried structure provided by the embodiment can fix the embedded part in the horizontal direction and the vertical direction, can avoid the relative up-down movement of the embedded part and the honeycomb core when the embedded part and the honeycomb core are bonded by the adhesive, can avoid the problems of poor bonding effect and unattractive product surface caused by the up-down movement of the embedded part, and can ensure the quality of the formed honeycomb panel.

[0057] ​The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A fastening tool (1) characterized in that: The tooling body (10) comprises a connecting section (13), an assembling section (12) and a fixing section (11), which are sequentially arranged along the length direction of the tooling body (10); the cross-sectional area of the fixing section (11) is larger than that of the assembling section (12), and the cross-sectional area of the assembling section (12) is larger than that of the connecting section (13); a connecting hole is formed in the locking member (14), the connecting section (13) of the tooling body (10) is arranged in the connecting hole of the locking member (14), and the locking member (14) and the connecting section (13) are detachably connected.

2. The fastening tool (1) according to claim 1, characterized in that: The outer peripheral wall of the connecting section (13) is provided with threads, the connecting hole of the locking member (14) is a threaded hole, and the connecting section (13) and the locking member (14) are threadedly connected.

3. The fastening tool (1) according to claim 2, characterized in that: The fixing section (11) has opposite first and second ends, the fixing section (11) is connected with the assembling section (12) through the first end, and a straight recess (111) is formed in the second end of the fixing section (11).

4. The fastening tool (1) according to claim 1, characterized in that: The fixing section (11), the assembling section (12) and the connecting section (13) are cylindrical.

5. The fastening tool (1) according to claim 1, characterized in that: The connecting hole in the locking member (14) penetrates the locking member (14).

6. An insert assembly structure characterized by comprising: The fastening tool (1) comprises a first die plate (30), a first embedded part (20) and any one of claims 1-5, a first stepped hole (21) is formed in the first embedded part (20) and penetrates the first embedded part (20), the first stepped hole (21) comprises a first hole (212) and a second hole (211), the diameter of the first hole (212) is larger than that of the second hole (211), a mounting hole (31) is formed in the first die plate (30), the first embedded part (20) is located on the first die plate (30) and the second hole (211) of the first embedded part (20) is closer to the first die plate (30), the connecting section (13) of the fastening tool (1) is arranged in the mounting hole (31), the size of the mounting hole (31) is smaller than the cross-sectional size of the assembling section (12) of the fastening tool (1), the assembling section (12) of the fastening tool (1) is located in the second hole (211) of the first embedded part (20) and the size of the assembling section (12) is the same as that of the second hole (211).

7. The fitting structure for a buried object according to Claim 6, wherein: The size of the mounting hole (31) of the first die plate (30) is the same as that of the connecting section (13) of the fastening tool (1).

8. The fitting structure for a buried object according to Claim 6, wherein: The second mold plate (40) is parallel to the first mold plate (30), and the second embedded part (50) is provided with a second stepped hole (51) penetrating the second embedded part (50), the second stepped hole (51) comprises a third hole (512) and a fourth hole (511), the diameter of the third hole (512) is larger than that of the fourth hole (511), the second mold plate (40) is provided with a fixing hole (41), the second embedded part (50) is located on the second mold plate (40), and the fourth hole (511) of the second embedded part (50) is closer to the second mold plate (40), the connecting section (13) of the fastening tool (1) is arranged in the fixing hole (41), the size of the fixing hole (41) is smaller than the cross-sectional size of the assembly section (12) of the fastening tool (1), the assembly section (12) of the fastening tool (1) is located in the fourth hole (511) of the second embedded part (50), and the assembly section (12) is the same in size as the fourth hole (511).

9. The fitting structure for a buried material according to claim 7 or 8, wherein: The third mold plate (60) is located away from the corresponding embedded part on one side of the first mold plate (30) and / or the second mold plate (40), the third mold plate (60) is provided with a avoiding hole (61), and the locking part (14) and the connecting section (13) of the fastening tool (1) are located in the avoiding hole (61).

10. A cellular precast structure, characterized by: The honeycomb core is provided with a plurality of positioning holes, the first embedded part (20) and / or the second embedded part (50) are located in the positioning holes, and the first mold plate (30) and the second mold plate (40) are located on two sides of the honeycomb core, respectively.

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