Anti-loose aluminum alloy profile connecting device

Abstract

The utility model discloses an anti -loose's aluminium alloy section bar connecting device, including two aluminium profiles, two aluminium profiles constitute T type structure, and both sides of two aluminium profile connecting positions are symmetrically equipped with right angle connecting plate, the position of right angle connecting plate alignment two aluminium profiles all is equipped with anti -loose bolt, and the anti -loose bolt bottom end passes through right angle connecting plate and is connected with the pressure block, the pressure block is clamped in aluminium profile inside, and anti -loose bolt drives the pressure block and is pressed in aluminium profile inside surface, be equipped with limit pad and anti -loose pad between anti -loose bolt and right angle connecting plate, the limit pad is inserted on right angle connecting plate, the anti -loose pad is set in the upper portion of limit pad, and the anti -loose pad is inserted between anti -loose pad and limit pad, so that anti -loose pad can move up and down, but cannot rotate, the upper surface of anti -loose pad is equipped with the clamping slot, one side of anti -loose bolt is equipped with a plurality of clamping teeth when clamping slot does not affect the rotation of clamping tooth when anti -loose bolt is tightened.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy profile connection technology, specifically to an anti-loosening aluminum alloy profile connection device. Background Technology

[0002] Aluminum alloy profiles are widely used in construction, rail transportation, machinery manufacturing, furniture, and many other fields due to their excellent properties such as lightweight, high strength, and corrosion resistance. In practical applications, multiple sections of aluminum alloy profiles often need to be connected and assembled to form an overall frame or component with a specific structure and function. Therefore, the reliability of the connection device directly affects the stability and safety of the entire structure.

[0003] Currently, common aluminum alloy profile connection methods mainly include bolting, riveting, welding, and special connectors. Among these, bolting is the most widely used due to its simple structure, convenient assembly and disassembly, and low cost. However, during long-term use, bolted connections are prone to loosening due to factors such as vibration, impact, temperature changes, and load fluctuations. This loosening problem is particularly prominent in scenarios with continuous vibration, such as rail transportation and mechanical equipment. Once the connection device loosens, it can not only cause gaps between profiles and generate abnormal noises, affecting the overall structural accuracy and user experience, but in severe cases, it may also lead to structural deformation, collapse, and other safety accidents, causing property damage and even personal injury.

[0004] A utility model patent with publication number CN215058680U discloses an aluminum profile connector, including a first frame shell, a first aluminum profile, an angle adjustment component, an anti-loosening clamping component, and a central hinge. The first aluminum profile is slidably connected to the lower inner surface of the first frame shell. An angle adjustment component is installed on one side of the outer surface of the first frame shell, and an anti-loosening clamping component is installed on the other side of the outer surface of the first frame shell. A second frame shell is rotatably connected to the top of the first frame shell via the central hinge. The second aluminum profile is slidably connected to the inner surface of the second frame shell. By turning the second hexagonal socket, the bidirectional screw is rotated, thereby causing the first nut and the second nut to clamp inward. The first aluminum profile is firmly clamped by the first clamping plate and the second clamping plate. Due to the bidirectional clamping action, the clamping preload is large, which can firmly fix the aluminum profile used in the connection, prevent it from loosening or deviating, and make the connection stable, firm, and reliable for a long time.

[0005] The aluminum profile connectors provided by the aforementioned patent can achieve the purpose of preventing loosening, but their structure is complex, installation is troublesome, and their placement on the aluminum profile will affect the normal use of the grooves on the aluminum profile. Utility Model Content

[0006] The purpose of this utility model is to provide an anti-loosening aluminum alloy profile connecting device, which aims to improve the problems of existing aluminum profile connectors having complex structures, troublesome installation, and affecting the normal use of the grooves on the aluminum profile when fitted onto it.

[0007] This utility model is implemented as follows:

[0008] A non-loosening aluminum alloy profile connection device includes two aluminum profiles forming a T-shape. Right-angle connecting plates are symmetrically arranged on both sides of the connection point between the two profiles. Anti-loosening bolts are provided at the positions of the right-angle connecting plates aligned with the two profiles. The bottom end of each anti-loosening bolt passes through the right-angle connecting plate and is connected to a pressure block. The pressure block is engaged with the inner side of the aluminum profile, and the anti-loosening bolt causes the pressure block to press firmly against the inner surface of the aluminum profile. A limiting washer and an anti-loosening washer are provided between the anti-loosening bolt and the right-angle connecting plate. The limiting washer is inserted into the right-angle connecting plate, and the anti-loosening washer is positioned above the limiting washer. The anti-loosening washer and the limiting washer are interlocked, allowing the anti-loosening washer to move up and down but not rotate. The upper surface of the anti-loosening washer is provided with a groove, and the side of the anti-loosening bolt that is in contact with the anti-loosening washer is provided with multiple teeth. When the anti-loosening bolt is tightened, the groove does not affect the rotation of the teeth. When the anti-loosening bolt is loosened in the reverse direction, the teeth will limit the movement of the groove, preventing the anti-loosening bolt from being loosened in the reverse direction, thereby achieving the purpose of preventing loosening.

[0009] Preferably, the aluminum profiles are provided with grooves on their sides, and a connecting hole is provided through the middle of the aluminum profiles.

[0010] Preferably, the pressure block is locked inside the slide groove, and the side of the pressure block facing the right-angle connecting plate is provided with a rubber pad, the rubber pad is provided with anti-slip texture, and the pressure block is provided with a threaded hole in the middle.

[0011] Preferably, the right-angle connecting plate has through holes facing the two aluminum profiles, and limiting insertion holes are provided on both sides of the through holes.

[0012] Preferably, the bottom surface of the gasket is provided with a limiting plate at the position of the limiting insertion hole, the limiting plate is inserted into the inside of the limiting insertion hole, the gasket is provided with multiple guide holes, and the gasket is provided with a first set of holes in the middle.

[0013] Preferably, the bottom surface of the anti-loosening washer is provided with a guide rod at the position aligned with the guide hole. The guide rod is inserted into the guide hole. A spring is sleeved on the outside of the guide rod. The top end of the spring is connected to the anti-loosening washer. A pressure ring is provided at the bottom end of the spring. The pressure ring abuts against the upper surface of the limiting washer. A second set of holes is provided in the middle of the anti-loosening washer. Protrusions are symmetrically provided on both sides of the anti-loosening washer for pressing down the anti-loosening washer when disassembling the anti-loosening bolt, so that the locking teeth and the locking groove are misaligned.

[0014] Preferably, the anti-loosening bolt has a pressure plate at its top, the locking teeth are provided on the bottom surface of the pressure plate, and the upper surface of the pressure plate has a hexagonal body.

[0015] Preferably, it also includes a slider, which is disposed in a transverse aluminum profile, and the top of the slider is provided with a connecting platform, the middle of the connecting platform is provided with a screw, and the screw is threadedly connected to a longitudinally disposed aluminum profile.

[0016] Preferably, it also includes a limiting plate, which is engaged with the bottom of both sides of the longitudinally arranged aluminum profile, and the bottom of the limiting plate is engaged with both sides of the transversely arranged aluminum profile.

[0017] Preferably, the end of the limiting plate facing the aluminum profile is provided with a sliding joint for locking onto the inner side of the aluminum profile, and the limiting plate is provided with a top screw for fixing the position of the limiting plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model uses a right-angle connecting plate to connect two aluminum profiles, and a pressure block, together with an anti-loosening bolt, presses the aluminum profiles together to achieve fixation. A limiting washer and an anti-loosening washer are provided between the anti-loosening bolt and the right-angle connecting plate. The limiting washer can limit the movement of the limiting washer and the anti-loosening washer, thus preventing rotation. The anti-loosening washer and the anti-loosening bolt have mutually engaging grooves and teeth. After the bolt is tightened, the grooves and teeth engage, preventing the anti-loosening washer from rotating, thus preventing the anti-loosening bolt from rotating and avoiding the problem of bolt loosening.

[0020] 2. This utility model allows the bottom end of the longitudinally arranged aluminum profile to slide on the transversely arranged aluminum profile by setting a slider, and the purpose of initially fixing the aluminum profile can be achieved after tightening the rosin aluminum profile.

[0021] 3. This utility model provides clamping plates on both sides of the longitudinally arranged aluminum profile, which are then clamped onto the transversely arranged aluminum profile. This prevents the aluminum profile from rotating and ensures that the longitudinal aluminum profile is stably installed on the transverse aluminum profile. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a structural schematic diagram of the aluminum profile of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the pressure block of this utility model;

[0025] Figure 4 This is a structural schematic diagram of the right-angle connecting plate of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the limiting gasket of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the anti-loosening gasket of this utility model;

[0028] Figure 7 This is a structural schematic diagram of the anti-loosening bolt of this utility model;

[0029] Figure 8 This is a schematic diagram of the slider of this utility model;

[0030] Figure 9 This is a schematic diagram of the structure of the limiting plate of this utility model.

[0031] In the diagram: 1. Aluminum profile; 11. Slide groove; 12. Connecting hole; 2. Pressure block; 21. Rubber pad; 22. Anti-slip texture; 23. Threaded hole; 3. Right-angle connecting plate; 31. Through hole; 32. Limiting insertion hole; 4. Limiting washer; 41. Limiting insertion plate; 42. Guide hole; 43. First set hole; 5. Anti-loosening washer; 51. Slot; 52. Second set hole; 53. Spring; 54. Pressure ring; 55. Guide rod; 6. Anti-loosening bolt; 61. Pressure plate; 62. Clamping tooth; 63. Hexagon; 7. Slider; 71. Connecting platform; 72. Screw; 8. Limiting plate; 81. Set screw; 82. Sliding joint. Detailed Implementation

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0033] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0034] Example 1

[0035] like Figure 1 , Figure 6 and Figure 7As shown, an anti-loosening aluminum alloy profile connecting device includes two aluminum profiles 1 forming a T-shaped structure. Right-angle connecting plates 3 are symmetrically arranged on both sides of the connection point of the two aluminum profiles 1. Anti-loosening bolts 6 are provided at the positions of the right-angle connecting plates 3 aligned with the two aluminum profiles 1. The bottom end of the anti-loosening bolt 6 passes through the right-angle connecting plate 3 and is connected to a pressure block 2. The pressure block 2 is locked inside the aluminum profile 1. This structure, by tightening the anti-loosening bolts 6, ensures that the pressure block 2 is stably pressed against the inside of the aluminum profile 1, thereby achieving a stable fit between the right-angle connecting plate 3 and the aluminum profile 1, and thus achieving the purpose of fixing the two aluminum profiles 1. Furthermore, the anti-loosening bolts 6 drive the pressure block 2 to press against the inner side of the aluminum profile 1. A limiting washer 4 and an anti-loosening washer 5 are provided between the anti-loosening bolts 6 and the right-angle connecting plate 3. This structure is used to prevent the anti-loosening bolts 6 from loosening. The limiting washer 4 is inserted into the right-angle connecting plate 3, ensuring that the limiting washer 4 cannot rotate. The anti-loosening washer 5 is positioned above the limiting washer 4, and the anti-loosening washer 5 and the limiting washer 4 are interlocked, thus ensuring that the anti-loosening washer 5 cannot rotate. This allows the anti-loosening washer 5 to move up and down, but not rotate. The upper surface of the anti-loosening washer 5 has a groove 51, and the side of the anti-loosening bolt 6 that contacts the anti-loosening washer 5 has multiple locking teeth 62. When the anti-loosening bolt 6 is tightened, the groove 51 does not affect the rotation of the locking teeth 62. When the anti-loosening bolt 6 is loosened in the reverse direction, the locking teeth 62 will limit the movement of the groove 51, preventing the anti-loosening bolt 6 from being loosened in the reverse direction, thereby achieving the purpose of preventing loosening.

[0036] like Figure 2 As shown, each side of the aluminum profile 1 is provided with a sliding groove 11, which facilitates the installation of various connectors and the connection and use between aluminum profiles 1. In addition, a connecting hole 12 is provided through the middle of the aluminum profile 1, which facilitates the connection of other components.

[0037] like Figure 3 As shown, the pressure block 2 is locked inside the slide groove 11, and the side of the pressure block 2 facing the right-angle connecting plate 3 is provided with a rubber pad 21. The rubber pad 21 is provided with anti-slip texture 22. This structure can effectively increase the friction between the pressure block 2 and the aluminum profile 1, and prevent the aluminum profile 1 from rotating. In addition, the pressure block 2 is provided with a threaded hole 23 in the middle, which is convenient for threaded connection with the anti-loosening bolt 6.

[0038] like Figure 4 As shown, the right-angle connecting plate 3 has through holes 31 facing the two aluminum profiles 1, which facilitate the passage of the anti-loosening bolts 6. Limiting insertion holes 32 are provided on both sides of the through holes 31, which facilitate the insertion of limiting washers 4 onto the right-angle connecting plate 3.

[0039] like Figure 5As shown, a limiting plate 41 is provided on the bottom surface of the gasket at the position aligned with the limiting insertion hole 32. The limiting plate 41 is inserted into the inside of the limiting insertion hole 32, which facilitates the stable mutual limiting of the gasket and the right-angle connecting plate 3. The gasket is provided with multiple guide holes 42, which facilitate the limiting of the anti-loosening gasket 5, ensuring that the anti-loosening gasket 5 cannot rotate. At the same time, the guide holes 42 also facilitate the guidance of the anti-loosening gasket 5. In addition, a first sleeve hole 43 is provided in the middle of the gasket, which is convenient for fitting onto the anti-loosening bolt 6.

[0040] like Figure 6 As shown, a guide rod 55 is provided on the bottom surface of the anti-loosening washer 5, aligned with the guide hole 42. The guide rod 55 is inserted into the guide hole 42 to facilitate the stability of the anti-loosening washer 5. A spring 53 is sleeved on the outside of the guide rod 55. The top of the spring 53 is connected to the anti-loosening washer 5, and a pressure ring 54 is provided at the bottom of the spring 53. The pressure ring 54 abuts against the upper surface of the limiting washer 4. This structure ensures that the anti-loosening washer 5 is stably abutted against the anti-loosening bolt 6. A second sleeve hole 52 is provided in the middle of the anti-loosening washer 5 for easy fitting onto the anti-loosening bolt 6. Symmetrical protrusions are provided on both sides of the anti-loosening washer 5 to press down the anti-loosening washer 5 when the anti-loosening bolt 6 is removed, so that the retaining teeth 62 and the retaining groove 51 are misaligned.

[0041] like Figure 7 As shown, the anti-loosening bolt 6 has a pressure plate 61 at its top, and a retaining tooth 62 is provided on the bottom surface of the pressure plate 61. This structure facilitates the stable use of the anti-loosening bolt 6 with the anti-loosening washer 5. The upper surface of the pressure plate 61 has a hexagon 63, which facilitates the tightening of the anti-loosening bolt 6.

[0042] Example 2

[0043] like Figure 1 , Figure 6 and Figure 7As shown, an anti-loosening aluminum alloy profile connecting device includes two aluminum profiles 1 forming a T-shaped structure. Right-angle connecting plates 3 are symmetrically arranged on both sides of the connection point of the two aluminum profiles 1. Anti-loosening bolts 6 are provided at the positions of the right-angle connecting plates 3 aligned with the two aluminum profiles 1. The bottom end of the anti-loosening bolt 6 passes through the right-angle connecting plate 3 and is connected to a pressure block 2. The pressure block 2 is locked inside the aluminum profile 1. This structure, by tightening the anti-loosening bolts 6, ensures that the pressure block 2 is stably pressed against the inside of the aluminum profile 1, thereby achieving a stable fit between the right-angle connecting plate 3 and the aluminum profile 1, and thus achieving the purpose of fixing the two aluminum profiles 1. Furthermore, the anti-loosening bolts 6 drive the pressure block 2 to press against the inner side of the aluminum profile 1. A limiting washer 4 and an anti-loosening washer 5 are provided between the anti-loosening bolts 6 and the right-angle connecting plate 3. This structure is used to prevent the anti-loosening bolts 6 from loosening. The limiting washer 4 is inserted into the right-angle connecting plate 3, ensuring that the limiting washer 4 cannot rotate. The anti-loosening washer 5 is positioned above the limiting washer 4, and the anti-loosening washer 5 and the limiting washer 4 are interlocked, thus ensuring that the anti-loosening washer 5 cannot rotate. This allows the anti-loosening washer 5 to move up and down, but not rotate. The upper surface of the anti-loosening washer 5 has a groove 51, and the side of the anti-loosening bolt 6 that contacts the anti-loosening washer 5 has multiple locking teeth 62. When the anti-loosening bolt 6 is tightened, the groove 51 does not affect the rotation of the locking teeth 62. When the anti-loosening bolt 6 is loosened in the reverse direction, the locking teeth 62 will limit the movement of the groove 51, preventing the anti-loosening bolt 6 from being loosened in the reverse direction, thereby achieving the purpose of preventing loosening.

[0044] like Figure 2 As shown, each side of the aluminum profile 1 is provided with a sliding groove 11, which facilitates the installation of various connectors and the connection and use between aluminum profiles 1. In addition, a connecting hole 12 is provided through the middle of the aluminum profile 1, which facilitates the connection of other components.

[0045] like Figure 3 As shown, the pressure block 2 is locked inside the slide groove 11, and the side of the pressure block 2 facing the right-angle connecting plate 3 is provided with a rubber pad 21. The rubber pad 21 is provided with anti-slip texture 22. This structure can effectively increase the friction between the pressure block 2 and the aluminum profile 1, and prevent the aluminum profile 1 from rotating. In addition, the pressure block 2 is provided with a threaded hole 23 in the middle, which is convenient for threaded connection with the anti-loosening bolt 6.

[0046] like Figure 4 As shown, the right-angle connecting plate 3 has through holes 31 facing the two aluminum profiles 1, which facilitate the passage of the anti-loosening bolts 6. Limiting insertion holes 32 are provided on both sides of the through holes 31, which facilitate the insertion of limiting washers 4 onto the right-angle connecting plate 3.

[0047] like Figure 5As shown, a limiting plate 41 is provided on the bottom surface of the gasket at the position aligned with the limiting insertion hole 32. The limiting plate 41 is inserted into the inside of the limiting insertion hole 32, which facilitates the stable mutual limiting of the gasket and the right-angle connecting plate 3. The gasket is provided with multiple guide holes 42, which facilitate the limiting of the anti-loosening gasket 5, ensuring that the anti-loosening gasket 5 cannot rotate. At the same time, the guide holes 42 also facilitate the guidance of the anti-loosening gasket 5. In addition, a first sleeve hole 43 is provided in the middle of the gasket, which is convenient for fitting onto the anti-loosening bolt 6.

[0048] like Figure 6 As shown, a guide rod 55 is provided on the bottom surface of the anti-loosening washer 5, aligned with the guide hole 42. The guide rod 55 is inserted into the guide hole 42 to facilitate the stability of the anti-loosening washer 5. A spring 53 is sleeved on the outside of the guide rod 55. The top of the spring 53 is connected to the anti-loosening washer 5, and a pressure ring 54 is provided at the bottom of the spring 53. The pressure ring 54 abuts against the upper surface of the limiting washer 4. This structure ensures that the anti-loosening washer 5 is stably abutted against the anti-loosening bolt 6. A second sleeve hole 52 is provided in the middle of the anti-loosening washer 5 for easy fitting onto the anti-loosening bolt 6. Symmetrical protrusions are provided on both sides of the anti-loosening washer 5 to press down the anti-loosening washer 5 when the anti-loosening bolt 6 is removed, so that the retaining teeth 62 and the retaining groove 51 are misaligned.

[0049] like Figure 7 As shown, the anti-loosening bolt 6 has a pressure plate 61 at its top, and a retaining tooth 62 is provided on the bottom surface of the pressure plate 61. This structure facilitates the stable use of the anti-loosening bolt 6 with the anti-loosening washer 5. The upper surface of the pressure plate 61 has a hexagon 63, which facilitates the tightening of the anti-loosening bolt 6.

[0050] like Figure 1 and Figure 8 As shown, it also includes a slider 7, which is disposed in the horizontal aluminum profile 1 to facilitate the connection between the vertical aluminum profile 1 and the horizontal aluminum profile 1. The top of the slider 7 is provided with a connecting platform 71, and the middle of the connecting platform 71 is provided with a screw 72. The screw 72 is threadedly connected to the vertical aluminum profile 1, which facilitates the initial connection between the vertical aluminum profile 1 and the horizontal aluminum profile 1, and makes it easy to fix them later with a right-angle connecting plate 3 and anti-loosening bolts 6.

[0051] Example 3

[0052] like Figure 1 , Figure 6 and Figure 7As shown, an anti-loosening aluminum alloy profile connecting device includes two aluminum profiles 1 forming a T-shaped structure. Right-angle connecting plates 3 are symmetrically arranged on both sides of the connection point of the two aluminum profiles 1. Anti-loosening bolts 6 are provided at the positions of the right-angle connecting plates 3 aligned with the two aluminum profiles 1. The bottom end of the anti-loosening bolt 6 passes through the right-angle connecting plate 3 and is connected to a pressure block 2. The pressure block 2 is locked inside the aluminum profile 1. This structure, by tightening the anti-loosening bolts 6, ensures that the pressure block 2 is stably pressed against the inside of the aluminum profile 1, thereby achieving a stable fit between the right-angle connecting plate 3 and the aluminum profile 1, and thus achieving the purpose of fixing the two aluminum profiles 1. Furthermore, the anti-loosening bolts 6 drive the pressure block 2 to press against the inner side of the aluminum profile 1. A limiting washer 4 and an anti-loosening washer 5 are provided between the anti-loosening bolts 6 and the right-angle connecting plate 3. This structure is used to prevent the anti-loosening bolts 6 from loosening. The limiting washer 4 is inserted into the right-angle connecting plate 3, ensuring that the limiting washer 4 cannot rotate. The anti-loosening washer 5 is positioned above the limiting washer 4, and the anti-loosening washer 5 and the limiting washer 4 are interlocked, thus ensuring that the anti-loosening washer 5 cannot rotate. This allows the anti-loosening washer 5 to move up and down, but not rotate. The upper surface of the anti-loosening washer 5 has a groove 51, and the side of the anti-loosening bolt 6 that contacts the anti-loosening washer 5 has multiple locking teeth 62. When the anti-loosening bolt 6 is tightened, the groove 51 does not affect the rotation of the locking teeth 62. When the anti-loosening bolt 6 is loosened in the reverse direction, the locking teeth 62 will limit the movement of the groove 51, preventing the anti-loosening bolt 6 from being loosened in the reverse direction, thereby achieving the purpose of preventing loosening.

[0053] like Figure 2 As shown, each side of the aluminum profile 1 is provided with a sliding groove 11, which facilitates the installation of various connectors and the connection and use between aluminum profiles 1. In addition, a connecting hole 12 is provided through the middle of the aluminum profile 1, which facilitates the connection of other components.

[0054] like Figure 3 As shown, the pressure block 2 is locked inside the slide groove 11, and the side of the pressure block 2 facing the right-angle connecting plate 3 is provided with a rubber pad 21. The rubber pad 21 is provided with anti-slip texture 22. This structure can effectively increase the friction between the pressure block 2 and the aluminum profile 1, and prevent the aluminum profile 1 from rotating. In addition, the pressure block 2 is provided with a threaded hole 23 in the middle, which is convenient for threaded connection with the anti-loosening bolt 6.

[0055] like Figure 4 As shown, the right-angle connecting plate 3 has through holes 31 facing the two aluminum profiles 1, which facilitate the passage of the anti-loosening bolts 6. Limiting insertion holes 32 are provided on both sides of the through holes 31, which facilitate the insertion of limiting washers 4 onto the right-angle connecting plate 3.

[0056] like Figure 5As shown, a limiting plate 41 is provided on the bottom surface of the gasket at the position aligned with the limiting insertion hole 32. The limiting plate 41 is inserted into the inside of the limiting insertion hole 32, which facilitates the stable mutual limiting of the gasket and the right-angle connecting plate 3. The gasket is provided with multiple guide holes 42, which facilitate the limiting of the anti-loosening gasket 5, ensuring that the anti-loosening gasket 5 cannot rotate. At the same time, the guide holes 42 also facilitate the guidance of the anti-loosening gasket 5. In addition, a first sleeve hole 43 is provided in the middle of the gasket, which is convenient for fitting onto the anti-loosening bolt 6.

[0057] like Figure 6 As shown, a guide rod 55 is provided on the bottom surface of the anti-loosening washer 5, aligned with the guide hole 42. The guide rod 55 is inserted into the guide hole 42 to facilitate the stability of the anti-loosening washer 5. A spring 53 is sleeved on the outside of the guide rod 55. The top of the spring 53 is connected to the anti-loosening washer 5, and a pressure ring 54 is provided at the bottom of the spring 53. The pressure ring 54 abuts against the upper surface of the limiting washer 4. This structure ensures that the anti-loosening washer 5 is stably abutted against the anti-loosening bolt 6. A second sleeve hole 52 is provided in the middle of the anti-loosening washer 5 for easy fitting onto the anti-loosening bolt 6. Symmetrical protrusions are provided on both sides of the anti-loosening washer 5 to press down the anti-loosening washer 5 when the anti-loosening bolt 6 is removed, so that the retaining teeth 62 and the retaining groove 51 are misaligned.

[0058] like Figure 7 As shown, the anti-loosening bolt 6 has a pressure plate 61 at its top, and a retaining tooth 62 is provided on the bottom surface of the pressure plate 61. This structure facilitates the stable use of the anti-loosening bolt 6 with the anti-loosening washer 5. The upper surface of the pressure plate 61 has a hexagon 63, which facilitates the tightening of the anti-loosening bolt 6.

[0059] like Figure 1 and Figure 8 As shown, it also includes a slider 7, which is disposed in the horizontal aluminum profile 1 to facilitate the connection between the vertical aluminum profile 1 and the horizontal aluminum profile 1. The top of the slider 7 is provided with a connecting platform 71, and the middle of the connecting platform 71 is provided with a screw 72. The screw 72 is threadedly connected to the vertical aluminum profile 1, which facilitates the initial connection between the vertical aluminum profile 1 and the horizontal aluminum profile 1, and makes it easy to fix them later with a right-angle connecting plate 3 and anti-loosening bolts 6.

[0060] like Figure 1 As shown, it also includes a limiting plate 8, which is engaged at the bottom of both sides of the longitudinally arranged aluminum profile 1, and the bottom of the limiting plate 8 is engaged at both sides of the transversely arranged aluminum profile 1; this structure facilitates the installation of the limiting plate 8 and facilitates the engagement of the limiting plate 8 on the transverse aluminum profile 1.

[0061] like Figure 9 As shown, the end of the limiting plate 8 facing the aluminum profile 1 is provided with a sliding joint 82 for locking inside the aluminum profile 1, and the limiting plate 8 is provided with a set screw 81 for fixing the position of the limiting plate 8.

[0062] Working principle: In use, when connecting two aluminum profiles 1 forming a T-shaped structure, the horizontal aluminum profile 1 is first initially fixed by connecting the slider 7 in the horizontal aluminum profile 1 and the screw 72 of its top connecting platform 71 to the vertical aluminum profile 1. Then, the limiting plate 8 is engaged at the bottom of both sides of the vertical aluminum profile 1 and its bottom is engaged at both sides of the horizontal aluminum profile 1. The position of the limiting plate 8 is fixed by the set screw 81 to assist in positioning. After that, right-angle connecting plates 3 are symmetrically installed on both sides of the connection position of the two aluminum profiles 1. The upper limit washer 4 and the anti-loosening washer 5 are fitted on the anti-loosening bolt 6. Then, the bottom end of the anti-loosening bolt 6 passes through the through hole 31 of the right-angle connecting plate 3 and is threadedly connected to the pressure block 2 in the inner sliding groove 11 of the aluminum profile 1. When tightening the anti-loosening bolt 6, the pressure block 2 presses the inner side of the aluminum profile 1 through the rubber pad 21 with anti-slip texture 22 on its side facing the right-angle connecting plate 3, increasing friction. The friction prevents the aluminum profile 1 from rotating, while ensuring that the right-angle connecting plate 3 is stably attached to the aluminum profile 1, thus fixing the two aluminum profiles 1. During this process, the limiting washer 4 is inserted into the limiting insertion hole 32 of the right-angle connecting plate 3 through the limiting insert plate 41 and cannot rotate. The anti-loosening washer 5 is inserted into the guide hole 42 of the limiting washer 4 through the guide rod 55 and cannot rotate but can move up and down. The spring 53 and pressure ring 54 at its bottom ensure that the anti-loosening washer 5 is stably pressed against the bottom surface of the pressure plate 61 of the anti-loosening bolt 6. When the anti-loosening bolt 6 is tightened, the locking teeth 62 on the bottom surface of the pressure plate 61 are not affected by the locking groove 51 on the upper surface of the anti-loosening washer 5 and rotates. When the anti-loosening bolt 6 attempts to loosen in the opposite direction, the locking teeth 62 will form a limit with the locking groove 51. In addition, the cooperation between the limiting washer 4 and the anti-loosening washer 5 restricts the anti-loosening bolt 6 from rotating in the opposite direction, thereby effectively preventing loosening and ensuring a stable connection. When tightening the anti-loosening bolt 6, after ensuring the aluminum profile 1 is securely connected, leave a small amount of slack between the anti-loosening washer 5 and the limiting washer 4. This allows for easy removal of the anti-loosening bolt 6 by pressing down on the anti-loosening washer 5, which can cause the slot 51 and the teeth 62 to misalign. This structure ensures both the stability of the aluminum profile 1 connection and the subsequent removal of the anti-loosening bolt 6. If the slack affects the overall structural stability of the aluminum profile 1, the anti-loosening bolt 6 can be tightened completely, or the spring 53 can be removed, which will further improve the connection's firmness.

[0063] In summary, this application uses a right-angle connecting plate 3 to connect two aluminum profiles 1, and a pressure block 2, in conjunction with an anti-loosening bolt 6, presses the aluminum profile 1 to achieve fixation. A limiting washer 4 and an anti-loosening washer 5 are provided between the anti-loosening bolt 6 and the right-angle connecting plate 3. The limiting washer 4 can limit the movement of the bracket connecting plate, thus preventing the limiting washer 4 and the anti-loosening washer 5 from rotating. The anti-loosening washer 5 and the anti-loosening bolt 6 are provided with mutually engaging grooves 51 and teeth 62. After the bolt is tightened, the grooves 51 and teeth 62 engage with each other, preventing the anti-loosening washer 5 from rotating. This also prevents the anti-loosening bolt 6 from rotating, thus avoiding the problem of bolt loosening.

[0064] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A non-loosening aluminum alloy profile connecting device, comprising two aluminum profiles (1), the two aluminum profiles (1) forming a T-shaped structure, characterized in that, Right-angle connecting plates (3) are symmetrically arranged on both sides of the connection position of the two aluminum profiles (1). Anti-loosening bolts (6) are provided on both sides of the right-angle connecting plates (3) aligned with the positions of the two aluminum profiles (1). The bottom end of each anti-loosening bolt (6) passes through the right-angle connecting plate (3) and is connected to a pressure block (2). The pressure block (2) is locked inside the aluminum profile (1), and the anti-loosening bolt (6) drives the pressure block (2) to press tightly against the inner side of the aluminum profile (1). A limiting washer (4) and an anti-loosening washer (5) are provided between the anti-loosening bolt (6) and the right-angle connecting plate (3). The limiting washer (4) is inserted into the right-angle connecting plate (3), and the anti-loosening washer (5) is set above the limiting washer (4), and the anti-loosening washer (5) is inserted into the limiting washer (4); the upper surface of the anti-loosening washer (5) is provided with a groove (51), and the side of the anti-loosening bolt (6) that is in contact with the anti-loosening washer (5) is provided with multiple teeth (62). When the anti-loosening bolt (6) is tightened, the groove (51) does not affect the rotation of the teeth (62). When the anti-loosening bolt (6) is loosened in the opposite direction, the teeth (62) will be limited by the groove (51).

2. The anti-loosening aluminum alloy profile connecting device according to claim 1, characterized in that, The aluminum profile (1) is provided with a sliding groove (11) on its side, and a connecting hole (12) is provided through the middle of the aluminum profile (1).

3. The anti-loosening aluminum alloy profile connecting device according to claim 2, characterized in that, The pressure block (2) is locked inside the slide groove (11), and the side of the pressure block (2) facing the right-angle connecting plate (3) is provided with a rubber pad (21), the rubber pad (21) is provided with anti-slip texture (22), and the pressure block (2) is provided with a threaded hole (23) in the middle.

4. The anti-loosening aluminum alloy profile connecting device according to claim 1, characterized in that, The right-angle connecting plate (3) has through holes (31) facing the two aluminum profiles (1), and there are limiting insertion holes (32) on both sides of the through holes (31).

5. The anti-loosening aluminum alloy profile connecting device according to claim 4, characterized in that, The bottom surface of the gasket is provided with a limiting plate (41) aligned with the limiting insertion hole (32). The limiting plate (41) is inserted into the inside of the limiting insertion hole (32). The gasket is provided with multiple guide holes (42), and the middle part of the gasket is provided with a first set hole (43).

6. The anti-loosening aluminum alloy profile connecting device according to claim 5, characterized in that, The bottom surface of the anti-loosening washer (5) is provided with a guide rod (55) aligned with the guide hole (42). The guide rod (55) is inserted into the guide hole (42). A spring (53) is sleeved on the outside of the guide rod (55). The top end of the spring (53) is connected to the anti-loosening washer (5). A pressure ring (54) is provided at the bottom end of the spring (53). The pressure ring (54) abuts against the upper surface of the limiting washer (4). A second set hole (52) is provided in the middle of the anti-loosening washer (5). The anti-loosening washer (5) is provided with symmetrical protrusions on both sides, which are used to press down the anti-loosening washer (5) when the anti-loosening bolt (6) is removed, so that the locking teeth (62) and the locking groove (51) are misaligned.

7. The anti-loosening aluminum alloy profile connecting device according to claim 1, characterized in that, The anti-loosening bolt (6) has a pressure plate (61) at its top, the locking teeth (62) are located on the bottom surface of the pressure plate (61), and the upper surface of the pressure plate (61) is provided with a hexagon (63).

8. The anti-loosening aluminum alloy profile connecting device according to any one of claims 1-7, characterized in that, It also includes a slider (7), which is disposed in the horizontal aluminum profile (1), and the top of the slider (7) is provided with a connecting platform (71), and the middle of the connecting platform (71) is provided with a screw (72), which is threadedly connected to the vertically disposed aluminum profile (1).

9. A non-loosening aluminum alloy profile connecting device according to any one of claims 1-7, characterized in that, It also includes a limiting plate (8), which is engaged with the bottom of both sides of the longitudinally arranged aluminum profile (1), and the bottom of the limiting plate (8) is engaged with both sides of the transversely arranged aluminum profile (1).

10. The anti-loosening aluminum alloy profile connecting device according to claim 9, characterized in that, The limiting plate (8) is provided with a sliding joint (82) at one end facing the aluminum profile (1) for locking inside the aluminum profile (1), and the limiting plate (8) is provided with a set screw (81) for fixing the position of the limiting plate (8).

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