Support convenient to disassemble and assemble

Abstract

The support convenient to disassemble and assemble comprises a long-strip-shaped base and a chain which is arranged in the base and can be bent in one direction, the length direction of the chain is parallel to the length direction of the base, an opening used for enabling the chain to stretch out is formed in the upper side of the rear end of the base, an adjusting piece used for enabling the chain to move towards the outside of the opening is arranged on the base, and the chain is bent upwards. By means of the base, the adjusting piece and the chain capable of being bent in the one-way mode, a part needing to be disassembled is supported, screws on the part can be disassembled conveniently, and the problem that the part is inconvenient to disassemble and assemble in the current aircraft overhauling process is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the field of supporting tools, and in particular relates to a bracket which is easy to assemble and disassemble. Background Art

[0002] During aircraft inspection or component replacement, some components require multiple screws for fixation, and screws need to be installed at different positions on the components according to the shape and structure of different components. During the initial installation of the components, they are installed one by one, so the installation is relatively convenient. However, after the overall installation is completed, different components will block each other, and during disassembly, the screws on the components need to be removed one by one. During the screw removal process, the component may sink or suddenly tilt when a screw is removed, so it is necessary to hold the component by hand during disassembly. However, under normal circumstances, due to the space for disassembly and assembly and the weight of the component, it is not possible to hold the component by hand for a long time, resulting in the component sinking or tilting during the screw removal process, or hitting other components during the tilting process, causing damage, making it inconvenient to disassemble and assemble the component.

[0003] The existing document CN202010391731.9 discloses a formwork support and reinforcement system in a narrow space, which belongs to the field of construction technology. It includes a steel formwork, a connecting plate is installed on one side of the surface of the steel formwork, and a connecting bolt is detachably connected to the inside of the connecting plate. The connecting plate is connected to an upper arm and a lower arm through connecting bolts. The upper arm is detachably connected to a fixed end connector on the side away from the steel formwork. The steel formwork is placed between the gaps of the building components, and the adjusting bolt is turned to change the distance between the adjustable end connecting nut and the fixed end connector, thereby changing the distance between the steel formworks.

[0004] The existing document CN202322099048.X discloses a narrow foundation pit support structure, including a rectangular frame, characterized in that the bottom of the rectangular frame is fixedly connected to the bottom support, and a driving device is coaxially arranged in the rectangular frame, and the left and right ends of the rectangular frame are respectively fixedly connected to the bracket, and the two brackets are respectively fixedly connected to the cross bar, and the two cross bars are respectively laterally slidably fitted with a sleeve, and each sleeve is fixedly connected to a support plate. The driving device drives two driving blocks that are symmetrically arranged up and down, and the left and right ends of each driving block are respectively fixedly connected to the main mounting seat, and the upper and lower sides of the outer edge of each sleeve are respectively fixedly connected to the auxiliary mounting seat, the main mounting seat and the auxiliary mounting seat correspond one to one and are jointly hingedly connected to the expansion support rod, the upper edge of each cross bar is provided with a sliding groove arranged along the horizontal direction, and the inner wall of each sleeve is fixedly connected with a guide key that laterally slides with its corresponding side sliding groove.

[0005] However, after reading these two existing documents, it is found that although it can provide support in a narrow space, the supporting surface is wide and the supporting point is in the middle of the bracket. When the components are disassembled, they are generally installed on one surface. The existing bracket cannot solve this problem because the supporting point is in the middle of the bracket. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a bracket that is easy to assemble and disassemble, so as to solve the problem of inconvenience in assembling and disassembling components during aircraft maintenance.

[0007] In order to solve the above problems, the present invention adopts the following technical solutions:

[0008] A bracket that is easy to disassemble and assemble includes a long base and a unidirectionally bendable chain arranged in the base. The length direction of the chain is parallel to the length direction of the base. An opening for extending the chain is provided on the upper side of the rear end of the base. An adjusting piece is provided on the base for moving the chain toward the outside of the opening. The chain bends upward.

[0009] Furthermore, the adjusting member includes a roller rotatably connected to the upper side of the base, and the roller abuts against the upper side of the chain.

[0010] Furthermore, the base is provided with a slide groove opened along its length direction, and the adjusting member includes an adjusting block adapted to the slide groove. The adjusting block moves on the base along the slide groove, and the bottom end of the adjusting block is fixedly connected to the end of the chain away from the opening.

[0011] Furthermore, an abutment block is provided at one end of the chain close to the opening, and the abutment block is located outside the opening.

[0012] Furthermore, a rubber pad is provided on the abutting block.

[0013] Furthermore, an anti-skid pad is provided at the bottom end of the base, and the bottom end of the anti-skid pad is serrated along its length.

[0014] Furthermore, a positioning bolt that abuts against the chain is threadedly connected to the base, and the positioning bolt is located between the adjusting member and the opening.

[0015] Furthermore, a guide tube perpendicular to the base is provided on the opening, and the abutment block is located outside the tube opening of the guide tube.

[0016] Furthermore, an arc-shaped guide slope is provided in the base for guiding the chain to bend upward.

[0017] Furthermore, an abutment block is provided at one end of the chain close to the opening, the abutment block is located outside the opening, a support rod is rotatably connected to the abutment block, and an end of the support rod away from the abutment block is rotatably connected to the adjustment block.

[0018] The significant beneficial effects achieved by this utility model are:

[0019] 1. The application supports the parts that need to be disassembled by the base, adjusting piece and one-way bendable chain, facilitates the disassembly of the screws on the parts, and effectively solves the problem of inconvenient disassembly of parts in the current aircraft maintenance process.

[0020] 2. The setting of the abutting block and the rubber cushion can increase the bonding force with the disassembled parts, facilitate the abutting of the disassembled parts, and avoid the movement of the chain after abutting.

[0021] 3. The anti-skid pad at the bottom end of the base can avoid the movement of the base and increase the stability of the whole.

[0022] 4. The positioning bolt can position the chain position, which is convenient to use.

[0023] 5. The guide pipe and the arc-shaped guide slope can facilitate the chain to move out of the opening.

[0024] 6. The setting of the supporting rod can avoid the bending of the chain when it is stretched out. BRIEF DESCRIPTION OF DRAWINGS

[0025] ATTACHMENT Figure 1 It is a schematic diagram of the front view cross-sectional structure of the embodiment 1 of the utility model;

[0026] ATTACHMENT Figure 2 It is a schematic diagram of the front view structure of the embodiment 2 and 3 of the utility model;

[0027] ATTACHMENT Figure 3 It is a schematic diagram of the front view cross-sectional structure of the embodiment 2 and 3 of the utility model;

[0028] ATTACHMENT Figure 4 It is a schematic diagram of the base top view partial structure of the embodiment 2 and 3 of the utility model.

[0029] In the drawings, 1, base; 2, chain; 3, opening; 4, roller; 5, sliding groove; 6, adjusting block; 7, abutting block; 8, rubber cushion; 9, anti-skid pad; 10, positioning bolt; 11, guide pipe; 12, arc-shaped guide slope; 13, supporting rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the application of the application or use. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0031] It should be noted that the chain referred to in this application is a one-way bending chain (or one-way anti-bending chain, one-way chain). As the name suggests, it is a chain that can only bend in one direction and cannot bend in the opposite direction.

[0032] Example 1

[0033] like Figure 1 As shown, a bracket that is easy to disassemble and assemble includes a long rectangular base 1 and a unidirectionally bendable chain 2 movably mounted in the base 1. The length direction of the chain 2 is parallel to the length direction of the base 1. An opening 3 for extending the chain 2 is opened on the upper side of the rear end of the base 1. An adjusting member is installed on the base 1 for moving the chain 2 toward the outside of the opening 3. The chain 2 can be bent upward;

[0034] In this embodiment, the adjusting member includes a roller 4 rotatably connected to the upper end of the base 1 , the roller 4 abuts against the upper end of the chain 2 , and the chain 2 is extended upward from the opening 3 by rolling the roller 4 ;

[0035] In order to facilitate the extension of the chain 2, an arc-shaped guide slope 12 is provided in the base 1 for guiding the chain 2 to bend upward. When the roller 4 rotates to move the chain 2, the arc-shaped guide slope 12 guides the chain 2 to bend upward and extend out of the opening 3.

[0036] In order to facilitate the abutment and support of the chain 2 on the parts that need to be disassembled, an abutment block 7 is fixedly installed on the end of the chain 2 close to the opening 3. The abutment block 7 is located outside the opening 3. A rubber pad 8 is bonded to the upper end of the abutment block 7. The provision of the rubber pad 8 can increase the contact area with irregular positions on the parts, making abutment easier.

[0037] When effectively supporting a component, the maintenance personnel first place the base 1 on the support position below the component to be removed (placed on another component) to provide a stable supporting force. In order to prevent the base 1 from sliding during the component removal process, an anti-skid pad 9 is adhered to the bottom end of the base 1. The bottom end of the anti-skid pad 9 is serrated along its length. The provision of the anti-skid pad 9 increases the friction between the base 1 and the placement position, thereby preventing the base 1 from moving during the component removal process and causing support failure.

[0038] In this embodiment, in order to facilitate the chain 2 to extend out of the opening 3, a guide tube 11 perpendicular to the upper end of the base 1 is fixedly installed on the opening 3, and the abutment block 7 is located outside the pipe mouth of the guide tube 11. The setting of the guide tube 11 makes the end of the chain 2 close to the opening 3 in a vertical state, which facilitates the subsequent vertical rise of the chain 2 along this trajectory; if the chain 2 bends after leaving the opening 3, the staff can use a screwdriver to assist in verticalization. After the abutment block 7 abuts against the disassembly component, the roller 4 is continued to rotate to increase the abutment force between the abutment block 7 and the disassembly component, and then the screwdriver is removed;

[0039] A positioning bolt 10 for abutting the upper end of the chain 2 is also threadedly connected to the upper end of the base 1. The positioning bolt 10 is located between the roller 4 and the opening 3. After the roller 4 drives the chain 2 to complete the abutment of the disassembled parts, the positioning bolt 10 is tightened toward the chain 2 to form an abutment on the chain 2 to prevent the chain 2 from returning to its original position. At this time, the chain 2 will not move even if the roller 4 is loosened, and the position of the base 1 will not move due to the abutment force.

[0040] Working principle: the staff first places the base 1 on the supporting part under the disassembled part, adjusts the base 1 so that the abutment block 7 faces the position where the disassembled part needs to abut, and then rolls the roller 4 to make the chain 2 vertically leave the opening 3 and move toward the disassembled part. After the rubber pad 8 on the abutment block 7 contacts the disassembled part, continue to roll the roller 4 until it can no longer drive the chain 2 to move, tighten the positioning bolt 10 toward the chain 2, and then loosen the roller 4. At this time, the chain 2 will abut the disassembled part, making it easier to remove the screws.

[0041] According to the size and shape of the disassembled parts, they can be supported by multiple chains 2. Moreover, the structure of the base 1 and the chain 2 is long and small, and can be supported at multiple points, making it easy to extend into different narrow locations for support.

[0042] In combination with the above, the present application supports the components that need to be disassembled through the base 1, the adjustment part and the unidirectionally bendable chain 2, facilitates the removal of the screws on the components, and effectively solves the problem of inconvenient component disassembly and assembly during the current aircraft maintenance process.

[0043] Example 2

[0044] like Figure 2 、 Figure 3 and Figure 4 As shown, a bracket that is easy to disassemble and assemble includes a long rectangular base 1 and a unidirectionally bendable chain 2 movably mounted in the base 1. The length direction of the chain 2 is parallel to the length direction of the base 1. An opening 3 for extending the chain 2 is opened on the upper side of the rear end of the base 1. An adjusting member is installed on the base 1 for moving the chain 2 toward the outside of the opening 3. The chain 2 can be bent upward;

[0045] In this embodiment, a chute 5 is provided at the upper end of the base 1 along its length, and the adjusting member includes an adjusting block 6 adapted to the chute 5. The adjusting block 6 can move along the chute 5 on the base 1, and the bottom end of the adjusting block 6 is fixedly connected to the end of the chain 2 away from the opening 3. In this embodiment, the chain 2 moves out of the opening 3 by moving the adjusting block 6 along the chute 5 toward the opening 3.

[0046] In order to facilitate the extension of the chain 2, an arc-shaped guide slope 12 is provided in the base 1 for guiding the chain 2 to bend upward. When the adjustment block 6 rotates to move the chain 2, the arc-shaped guide slope 12 guides the chain 2 to bend upward and extend out of the opening 3.

[0047] In order to facilitate the chain 2 to abut and support the parts that need to be disassembled, an abutment block 7 is fixedly installed on the end of the chain 2 close to the opening 3. The abutment block 7 is located outside the opening 3. A rubber pad 8 is bonded to the upper end of the abutment block 7. The provision of the rubber pad 8 can increase the contact area with irregular positions on the parts, making abutment easier.

[0048] When effectively supporting a component, the maintenance personnel first place the base 1 on the support position below the component to be removed (placed on another component) to provide a stable supporting force. In order to prevent the base 1 from sliding during the component removal process, an anti-skid pad 9 is adhered to the bottom end of the base 1. The bottom end of the anti-skid pad 9 is serrated along its length. The provision of the anti-skid pad 9 increases the friction between the base 1 and the placement position, thereby preventing the base 1 from moving during the component removal process and causing support failure.

[0049] In this embodiment, in order to facilitate the chain 2 to extend out of the opening 3, a guide tube 11 perpendicular to the upper end of the base 1 is fixedly installed on the opening 3, and the abutment block 7 is located outside the pipe mouth of the guide tube 11. The setting of the guide tube 11 makes the end of the chain 2 close to the opening 3 in a vertical state, which facilitates the subsequent vertical rise of the chain 2 along this trajectory; if the chain 2 bends after leaving the opening 3, the staff can use a screwdriver to assist in verticalization. After the abutment block 7 abuts against the dismantling component, the staff continues to rotate the adjustment block 6 to increase the abutment force between the abutment block 7 and the dismantling component, and then remove the screwdriver;

[0050] A positioning bolt 10 for abutting the upper end of the chain 2 is also threadedly connected to the upper end of the base 1. The positioning bolt 10 is located between the adjusting block 6 and the opening 3. After the adjusting block 6 drives the chain 2 to complete the abutment of the disassembled parts, the positioning bolt 10 is tightened toward the chain 2 to form an abutment on the chain 2 to prevent the chain 2 from returning to its original position. At this time, the chain 2 will not move even if the adjusting block 6 is loosened, and the position of the base 1 will not move due to the abutment force.

[0051] Working principle: the staff first places the base 1 on the supporting part under the disassembled part, adjusts the base 1 so that the abutment block 7 is vertically facing the position where the disassembled part needs to abut, and then pushes the adjustment block 6 to make the chain 2 vertically leave the opening 3 and move toward the disassembled part. After the rubber pad 8 on the abutment block 7 contacts the disassembled part, continue to push the adjustment block 6 until it can no longer drive the chain 2 to move, tighten the positioning bolt 10 toward the chain 2, and then loosen the adjustment block 6. At this time, the chain 2 will abut the disassembled part, making it easier to remove the screws.

[0052] Depending on the size and shape of the disassembled parts, they can be supported by multiple chains 2, and the structure of the base 1 and the chain 2 is long and narrow, which makes it easy to extend into different positions for support.

[0053] Example 3

[0054] like Figure 2 、 Figure 3 and Figure 4 As shown, the structure of this embodiment is roughly the same as that of embodiment 2. This embodiment is further optimized on the basis of embodiment 2. In order to facilitate the vertical upward movement of the chain 2 after leaving the opening 3, a support rod 13 is rotatably connected to the side of the abutment block 7 close to the adjustment block 6, and the end of the support rod 13 away from the abutment block 7 is rotatably connected to the adjustment block 6. When the adjustment block 6 is pushed, the support rod 13 is tilted and raised to support the abutment block 7, thereby avoiding bending of the chain 2 and making the operation more convenient.

Claims

1. A bracket that is easy to assemble and disassemble, characterized by: The invention comprises a long strip base (1) and a unidirectionally bendable chain (2) arranged in the base (1); the length direction of the chain (2) is parallel to the length direction of the base (1); an opening (3) for extending the chain (2) is provided at the upper end of the rear side of the base (1); an adjusting member for moving the chain (2) toward the outside of the opening (3) is provided on the base (1); and the bendable direction of the chain (2) is upward.

2. The bracket that is easy to assemble and disassemble according to claim 1, characterized in that: The adjusting member comprises a roller (4) rotatably connected to the upper end of the base (1), and the roller (4) abuts against the upper end of the chain (2).

3. The bracket that is easy to assemble and disassemble according to claim 1, characterized in that: The upper end of the base (1) is provided with a slide groove (5) opened along the length direction thereof, and the adjusting member includes an adjusting block (6) adapted to the slide groove (5), and the adjusting block (6) moves on the base (1) along the slide groove (5), and the bottom end of the adjusting block (6) is fixedly connected to the end of the chain (2) away from the opening (3).

4. The bracket that is easy to assemble and disassemble according to claim 2 or 3, characterized in that: An abutment block (7) is provided at one end of the chain (2) close to the opening (3), and the abutment block (7) is located outside the opening (3).

5. The bracket that is easy to assemble and disassemble according to claim 4, characterized in that: A rubber cushion (8) is provided on the abutment block (7).

6. The bracket that is easy to assemble and disassemble according to claim 5, characterized in that: An anti-skid pad (9) is provided at the bottom end of the base (1), and the bottom end of the anti-skid pad (9) is serrated along its length direction.

7. The bracket that is easy to assemble and disassemble according to claim 6, characterized in that: A positioning bolt (10) for abutting against the chain (2) is threadedly connected to the base (1), and the positioning bolt (10) is located between the adjusting member and the opening (3).

8. The bracket that is easy to assemble and disassemble according to claim 7, characterized in that: A guide tube (11) perpendicular to the base (1) is provided on the opening (3), and the abutment block (7) is located outside the tube opening of the guide tube (11).

9. The bracket that is easy to assemble and disassemble according to claim 8, characterized in that: An arc-shaped guide slope (12) for guiding the chain (2) to bend upward is provided in the base (1).

10. The bracket that is easy to assemble and disassemble according to claim 3, characterized in that: An abutment block (7) is provided at one end of the chain (2) close to the opening (3), and the abutment block (7) is located outside the opening (3). A support rod (13) is rotatably connected to the abutment block (7), and an end of the support rod (13) away from the abutment block (7) is rotatably connected to the adjustment block (6).

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