Adjustable Self-Aligning Quick Connecting and Fastening Method and System

Abstract

The present invention discloses an adjustable self-aligning quick-connection fastening method and system. This scheme uses a first locking pin to fasten a first side of a rectangular array unit to be connected with an adjacent rectangular array. During the fastening process, the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array is automatically adjusted in the X-axis and Y-axis directions of the rectangular array unit, thereby performing automatic alignment adjustment. A second locking pin is used to fasten a second side of the rectangular array unit to be connected with the adjacent rectangular array. The second side is adjacent to the first side. During the fastening process, the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array is automatically adjusted in the Z-axis direction of the rectangular array unit, thereby performing automatic alignment adjustment. The quick-connection fastening scheme thus constructed can automatically adjust and position during use, with extremely small cumulative tolerances. Moreover, this scheme is convenient to operate and highly efficient during use.

Description

Technical Field

[0001] The present invention relates to mechanical assembly technology, in particular to a tool for fastening, connecting, disassembling or clamping. Background Art

[0002] Most existing rectangular array mechanical assemblies use locating pins for positioning and assembly. This assembly solution cannot be automatically adjusted, resulting in tolerance accumulation and assembly difficulties.

[0003] For example, existing large-scale LED display products are assembled from several rectangular array units (see Figure 1 ), when these rectangular array units are assembled, the adjacent rectangular array units are first positioned vertically with the upper and lower adjacent rectangular arrays through the two positioning pins 10 on the upper and lower sides, and then positioned with the left and right adjacent rectangular arrays and reversely left and right through the two positioning steel ball pins 20 on the left and right sides. Finally, after the positioning is completed, the three locking components 30 are used to lock them, thereby completing the assembly between the adjacent rectangular array units, and thus completing the composition of the entire LED large-scale display product.

[0004] This assembly solution based on positioning pins generally has the following problems in actual use:

[0005] (1) Adjacent rectangular array units are positioned by positioning pins and cannot be automatically adjusted for alignment. Manual alignment is required.

[0006] (2) One worker is required to observe in the front and another worker is required to tighten in the back, so it is impossible to assemble by one person.

[0007] (3) Assembly takes a long time and is inefficient.

[0008] (4) The assembly effect is poor, and the errors at the assembly points accumulate as the assembly proceeds, resulting in the flatness of the entire LED large-scale display product being low, making the LED image fail to meet the requirements.

[0009] (5) The precision control of assembly mainly adopts the method of visual inspection by workers, which has low accuracy.

[0010] (6) There is a problem of tolerance accumulation after assembling multiple pieces, making subsequent installation very difficult.

[0011] (7) The positioning pin locking assembly used has many parts, requiring a total of three locking components 30, two upper and lower positioning columns (10), and two left and right positioning steel ball pins (20), a total of seven parts. The structure is very complex and the reliability is poor.

[0012] (8) Due to the large number of parts in the positioning pin locking assembly, the processing area on the LED aluminum frame in the rectangular array unit is large and many holes are processed. One piece of aluminum frame needs to be processed with 26 holes, which increases the processing difficulty and cost of the LED aluminum frame.

[0013] (8) Such an assembly solution cannot adapt to higher-resolution LED display products.

[0014] Therefore, there is an urgent need in the art for a mechanical assembly solution that is simple and reliable in structure, can eliminate cumulative errors, and achieve fast and precise rectangular array assembly. Summary of the Invention

[0015] In view of the problems existing in the existing rectangular array mechanical assembly scheme, a new rectangular array mechanical assembly scheme is needed to achieve fast and accurate mechanical assembly of the rectangular array.

[0016] To this end, the purpose of the present invention is to provide an adjustable self-aligning quick connection and fastening method and system to achieve adjustable self-alignment during the assembly process to eliminate the cumulative error of the fast mechanical assembly of the rectangular array, thereby achieving fast and precise mechanical assembly of the rectangular array.

[0017] To achieve the above-mentioned object, the present invention provides an adjustable self-aligning quick connection and fastening method, which comprises:

[0018] The first side of the rectangular array unit to be connected is fastened to the adjacent rectangular array by a first locking pin, and during the fastening process, the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array is automatically adjusted in the X-axis direction and the Y-axis direction of the rectangular array unit to perform automatic alignment adjustment;

[0019] The second side of the rectangular array unit to be connected is fastened to the adjacent rectangular array by a second locking pin, and the second side is adjacent to the first side. During the fastening process, the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array is automatically adjusted in the Z-axis direction of the rectangular array unit to perform automatic alignment adjustment.

[0020] Furthermore, the matching structure between the rectangular array unit and the locking pin is utilized to eliminate the machining error on the rectangular array unit.

[0021] Furthermore, the first locking pin automatically aligns and adjusts the rectangular array units in the X-axis direction and the Y-axis direction simultaneously during the fastening process.

[0022] Furthermore, the second locking pin automatically aligns and adjusts the rectangular array units in the Z-axis direction during the tightening process.

[0023] Furthermore, only one fastening connection position is provided on the side of the rectangular array unit for fastening connection.

[0024] In order to achieve the above-mentioned object, the present invention provides an adjustable self-aligning quick-connect fastening system, which mainly includes:

[0025] a first locking pin, wherein the first locking pin fastens and connects the first side of the rectangular array unit to be connected with the adjacent rectangular array, and during the fastening and connecting process, automatically adjusts the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array in the X-axis direction and the Y-axis direction of the rectangular array unit so that the units are automatically aligned in the X-axis direction and the Y-axis direction;

[0026] A second locking pin, wherein the second locking pin fastens and connects the second side of the rectangular array unit to be connected and the adjacent rectangular array, wherein the second side is adjacent to the first side, and during the fastening and connecting process, automatically adjusts the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array in the Z-axis direction of the rectangular array unit so that they are automatically aligned in the Z-axis direction.

[0027] Furthermore, the first locking pin is arranged on the first side of the rectangular array unit and passes through the first side to be fastened to the adjacent rectangular array.

[0028] Furthermore, the arrangement and matching structure between the first locking pin and the rectangular array unit can eliminate machining errors in the X-axis direction and the Y-axis direction on the rectangular array unit.

[0029] Furthermore, the second locking pin is arranged on the second side of the rectangular array unit and passes through the second side to be fastened to the adjacent rectangular array.

[0030] Furthermore, the arrangement and matching structure between the second locking pin and the rectangular array unit can eliminate the machining error of the rectangular array unit in the Z-axis direction.

[0031] Furthermore, the locking pin includes:

[0032] a sleeve, the sleeve being arranged on a rectangular array unit adjacent to the rectangular array unit to be connected, and having an auxiliary self-adjusting structure arranged thereon;

[0033] A quick coupler is provided on the rectangular array unit to be connected. The quick coupler can pass through the rectangular array unit to be connected and cooperate with the auxiliary self-adjusting structure on the adjacent rectangular array unit to automatically adjust the relative position relationship between the rectangular array unit to be connected and the adjacent rectangular array unit. At the same time, the quick coupler also forms a pressing force on the rectangular array unit to be connected facing the adjacent rectangular array unit, driving the rectangular array unit to be connected to press the adjacent rectangular array unit.

[0034] Furthermore, the auxiliary self-adjusting structure on the sleeve is a circular adjustment hole, which can accommodate a quick connector and cooperate with the inserted quick connector to automatically adjust the relative position relationship between the rectangular array unit to be connected and the adjacent rectangular array unit.

[0035] Furthermore, when the quick connector is inserted into the circular adjustment hole, the position relationship of the quick connector relative to the sleeve is automatically adjusted so that the quick connector is located at the center of the circular adjustment hole, thereby driving the rectangular array unit to be connected and the adjacent rectangular array unit to adjust the relative position relationship between the two.

[0036] Furthermore, the quick coupler includes:

[0037] The connecting body is a hollow cylindrical body, the size of which matches the circular adjustment hole on the sleeve and can move axially along the circular adjustment hole; a plurality of adjustment ball movement holes connected to the interior are provided on the connecting body along its circumference;

[0038] A plurality of adjusting balls, each of which is placed in a corresponding adjusting ball moving hole and can move along the corresponding adjusting ball moving hole;

[0039] An adjusting rod is inserted into the coupling body, is screwed to the coupling body, and can move axially along the coupling body to synchronously drive a plurality of adjusting balls to move synchronously along corresponding adjusting ball moving holes to protrude from the coupling body;

[0040] The spring is sleeved on the connecting body and can form a pressing force on the second component to be fastened facing the first component to be fastened when the connecting body moves axially along the circular adjustment hole on the sleeve.

[0041] Furthermore, the quick coupler includes:

[0042] The connecting body is a hollow cylindrical body, the size of which matches the circular adjustment hole on the sleeve and can move axially along the circular adjustment hole; a plurality of adjustment ball movement holes connected to the interior are provided on the connecting body along its circumference;

[0043] A plurality of adjusting balls, each of which is placed in a corresponding adjusting ball moving hole and can move along the corresponding adjusting ball moving hole;

[0044] An adjusting rod is inserted into the coupling body, is screwed to the coupling body, and can move axially along the coupling body to synchronously drive a plurality of adjusting balls to move synchronously along corresponding adjusting ball moving holes to protrude from the coupling body;

[0045] The spring is sleeved on the adjusting rod and forms a pressing force between the second component to be fastened and the first component to be fastened when the connecting body moves axially along the circular adjusting hole on the sleeve.

[0046] Furthermore, the quick coupler also includes a sleeve, which is mounted on the coupling body, with a bottom end connected to the second component to be fastened and a top end accommodating the adjustment rod to pass through.

[0047] Furthermore, the quick coupler further comprises a self-sliding guide sleeve, which is embedded in the top end of the outer sleeve and allows the adjustment rod to pass through.

[0048] Furthermore, the self-sliding guide sleeve is a PTFE guide sleeve.

[0049] The quick connection and fastening solution thus constructed can automatically adjust and position during use, with minimal cumulative tolerance; and the quick connection and fastening solution is simple to install and highly efficient during use.

[0050] When the quick connection and fastening solution is used for rectangular array mechanical assembly, the problems of tolerance product and assembly difficulty existing in the prior art are effectively solved through automatic adjustment and positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0052] Figure 1 It is a schematic diagram of the connection between existing rectangular array units;

[0053] Figure 2 Schematic diagram of the adjustable self-aligning quick connection fastening system provided in this solution for the precise and rapid connection and assembly of rectangular array units;

[0054] Figure 3 Exploded view of the first locking pin provided for this solution;

[0055] Figure 4 A cross-sectional view of the first locking pin provided in this solution;

[0056] Figure 5 A schematic diagram of the structure of the sleeve in the first locking pin provided in this solution;

[0057] Figure 6 A schematic structural diagram of the connecting body in the first locking pin provided in this solution;

[0058] Figure 7 A schematic diagram of the structure of the adjustment rod in the first locking pin provided in this solution;

[0059] Figure 8 A schematic diagram of the structure of the self-sliding guide sleeve in the first locking pin provided in this solution;

[0060] Figure 9 Schematic diagram of the tightening and locking of the adjustable self-aligning quick-connect fastening system composed of the first locking pin in this solution;

[0061] Figure 10 Schematic diagram of the tightening and releasing of the adjustable self-aligning quick-connect tightening system composed of the first locking pin in this solution;

[0062] Figure 11 Exploded view of the second locking pin provided for this solution;

[0063] Figure 12 A cross-sectional view of the second locking pin provided in this solution;

[0064] Figure 13 Schematic diagram of the tightening and locking of the adjustable self-aligning quick-connect fastening system composed of the second locking pin in this solution;

[0065] Figure 14 Schematic diagram of the tightening and releasing of the adjustable self-aligning quick-connect tightening system composed of the second locking pin in this solution;

[0066] Figure 15 Schematic diagram of the structure of the rectangular aluminum frame in the LED display product provided for this solution;

[0067] Figure 16 Schematic diagram of the adjustable self-aligning quick-connect fastening system provided in this solution for automatic adjustment and alignment in the X and Y axis directions during LED display product assembly;

[0068] Figure 17 Schematic diagram of the adjustable self-aligning quick-connect fastening system provided in this solution for automatic adjustment and alignment in the Z-axis direction during LED display product assembly. DETAILED DESCRIPTION

[0069] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0070] This solution uses two locking pins to achieve precise and rapid connection and assembly of rectangular array units. During the connection and assembly process, the rectangular array units to be connected and assembled can be automatically aligned and adjusted in the X, Y, and Z axes to achieve precise positioning, ensure the accuracy of the connection and assembly, and eliminate accumulated tolerances during the installation process.

[0071] Based on this, this solution provides an adjustable self-aligning quick connection and fastening system to achieve precise and rapid connection and assembly of rectangular array units. Figure 2, which shows a schematic diagram of the precise and rapid connection and assembly of rectangular array units by the adjustable self-aligning quick connection and fastening system.

[0072] As can be seen from the figure, the adjustable self-aligning quick-connect fastening system mainly includes a first locking pin 100 and a second locking pin 200 with the same structure.

[0073] The first locking pin 100 is used to fasten the first side 310 of the rectangular array unit 300 to be connected and the adjacent rectangular array 400, and during the fastening process, automatically adjusts the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array in the X-axis direction and the Y-axis direction of the rectangular array unit, so that they are automatically aligned in the X-axis direction and the Y-axis direction.

[0074] The second locking pin 200 is used to fasten the second side 320 of the rectangular array unit 300 to be connected and the adjacent rectangular array 500, where the second side 320 is adjacent to the first side 310. During the fastening process, the second locking pin automatically adjusts the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array in the Z-axis direction of the rectangular array unit so that they are automatically aligned in the Z-axis direction.

[0075] Specifically, the first locking pin 100 of this system is fixedly positioned in the middle of the first side 310 of the rectangular array unit 300 to be connected. The first locking pin 100 can pass through the first side 310 of the rectangular array unit 300 to be connected to the adjacent rectangular array, and automatically aligns and adjusts during the connection process. At the same time, the first locking pin 100 also creates pressure between the rectangular array unit 300 to be connected and the adjacent rectangular array 400, pressing the two together.

[0076] Furthermore, this system also eliminates the processing errors in the X-axis and Y-axis directions of the rectangular array unit through the placement and matching structure between the first locking pin and the rectangular array unit, thereby improving the assembly accuracy of the rectangular array unit and reducing the processing accuracy requirements of the rectangular array unit.

[0077] The second locking pin 200 in this system is fixedly positioned in the middle of the second side 320 of the rectangular array unit 300 to be connected, which is adjacent to the first side 310. The second locking pin 200 can pass through the second side 320 of the rectangular array unit 300 to be connected to the adjacent rectangular array 500, automatically aligning and adjusting the connection process. At the same time, the second locking pin 200 also creates pressure between the rectangular array unit 300 to be connected and the adjacent rectangular array 500, pressing them together.

[0078] Furthermore, this system also eliminates the processing error in the Z-axis direction of the rectangular array unit through the placement and matching structure between the second locking pin and the rectangular array unit, thereby improving the assembly accuracy of the rectangular array unit and reducing the processing accuracy requirements of the rectangular array unit.

[0079] It can be seen that this solution only uses two identical locking pins and does not require the installation of any other components to achieve accurate and rapid connection and assembly of rectangular array units. Compared with the existing technical structure, it is simple and reliable. Furthermore, this solution can automatically align and adjust the rectangular array units to be connected and assembled in the three directions of X, Y and Z axes to achieve precise positioning, ensure the accuracy of connection and assembly, and eliminate accumulated tolerances during the installation process.

[0080] For the two identical locking pins in this solution, it is preferred that they are formed by a sleeve and a corresponding quick connector to ensure reliability.

[0081] Among them, the sleeve is arranged on the rectangular array unit adjacent to the rectangular array unit to be connected, and is provided with an auxiliary self-adjusting structure; and the quick connector is arranged on the rectangular array unit to be connected, which can pass through the rectangular array unit to be connected and cooperate with the auxiliary self-adjusting structure on the adjacent rectangular array unit to automatically adjust the relative position relationship between the rectangular array unit to be connected and the adjacent rectangular array unit; at the same time, the quick connector also forms a pressing force on the rectangular array unit to be connected facing the adjacent rectangular array unit, driving the rectangular array unit to be connected to press the adjacent rectangular array unit.

[0082] As an example, this solution provides two basic structural solutions for the locking pin.

[0083] This solution provides a basic structure of the first locking pin as follows Figure 3-Figure 4 shown.

[0084] As can be seen from the figure, the locking pin 100 mainly includes a sleeve 110, a connecting body 120, a plurality of adjustment balls 130, an adjustment rod 140, a spring 150, a sleeve 160, and a self-sliding guide sleeve 170.

[0085] The sleeve 110 in this locking pin serves as an auxiliary self-adjusting component, integrally mounted on the first component to be fastened 400 (e.g., the adjacent rectangular array unit 400 described above), and is used to drive the first component to be fastened 400 to perform self-alignment adjustment. To this end, the sleeve 110 is provided with a corresponding auxiliary self-adjusting structure for quick coupling engagement to achieve self-alignment adjustment.

[0086] The coupling body 120 in the locking pin cooperates with a plurality of adjustment balls 130, an adjustment rod 140, a spring 150, a sleeve 160, and a self-sliding guide sleeve 170 to form a corresponding quick coupler. The quick coupler, as an active self-adjusting component, is integrally arranged on the second component to be fastened 300 (such as the aforementioned rectangular array unit 300 to be connected) and can cooperate with the auxiliary self-adjusting structure on the first component to be fastened 400. The driving sleeve 110 drives the first component to be fastened 400 to move relative to the second component to be fastened 300, and then automatically adjusts the relative positional relationship between the second component to be fastened and the first component to be fastened, so that the second component to be fastened and the first component to be fastened are self-aligned. While performing the self-alignment adjustment, the quick coupler also applies a pressing force to the second component to be fastened toward the first component to be fastened, driving the second component to be fastened to press against the first component to be fastened, so that the second component to be fastened and the first component to be fastened are fastened synchronously.

[0087] According to this principle, the specific implementation of the locking pin in this example is as follows:

[0088] See also Figure 5 , which shows the specific composition structure of the sleeve 110 in this locking pin solution. As can be seen from the figure, the sleeve 110 is in an inverted "T" shape as a whole, and mainly includes two parts: a connecting bottom plate 111 and a base 112.

[0089] The connecting base plate 111 is a flat plate structure for connecting the corresponding parts to be fastened, and can be connected by corresponding bolts. The structure of the connecting base plate 111 is not limited to this, and other feasible solutions can be adopted as needed, as long as it can facilitate the stable connection of the corresponding parts to be fastened.

[0090] The base 112 is cylindrical in shape and is mounted on the connecting base plate 111. When the connecting base plate 111 is connected to the corresponding component to be fastened, it can be inserted into the component to be fastened, thereby improving the connection reliability between the sleeve 110 and the component to be fastened. Furthermore, the base 112 is provided with a circular adjustment hole 113 along its central axis, thereby forming an auxiliary self-adjustment structure. These circular adjustment holes 113 are circular through-holes distributed along the centerline of the base 112. The inner diameter of these circular through-holes matches the outer diameter of the connecting body 120, allowing the connecting body 120 to be inserted. The holes, in conjunction with the inserted connecting body 120 and the several adjustment balls 130 positioned therein, automatically adjust the relative position between the two components to be fastened.

[0091] On this basis, the present solution further provides a truncated cone structure 114 at the bottom opening of the circular adjustment hole 113 to cooperate with a plurality of adjustment balls 130 in the connecting body 120 to complete preliminary positioning.

[0092] When used, the sleeve 110 constructed in this way is inserted into the corresponding component to be fastened through the base 112 thereon, and is fixedly connected to the component to be fastened through the connecting base plate 111 thereon via corresponding bolts or other fixing members.

[0093] See also Figure 6 In order to match the above-mentioned sleeve 110, the connecting body 120 in this solution is cylindrical as a whole. The size of the cylindrical connecting body 120 matches the circular adjustment hole 113 on the sleeve and can move axially along the circular adjustment hole 113.

[0094] A circular step 121 is provided at the top of the cylindrical coupling body 120 for engagement with the spring 150 .

[0095] The cylindrical coupling body 120 has a circular through hole 122 formed along its axis (the axis of the circular through hole 121 is collinear with the axis of the cylindrical coupling body 120 ), and the circular through hole 122 cooperates with the adjustment rod 140 .

[0096] The bottom end of the cylindrical coupling body 120 is circumferentially provided with a plurality of adjustment ball movement holes 123 that communicate with the internal circular through-hole 122. These adjustment ball movement holes 123 are coplanar and engage with the adjustment ball 130, allowing the adjustment ball 130 to move within the holes along the extending direction until it protrudes out of the cylindrical coupling body. The number of adjustment ball movement holes 123 can be determined based on actual needs.

[0097] The plurality of adjusting balls 130 in this solution are respectively placed in the corresponding adjusting ball moving holes 123 and can move along the corresponding adjusting ball moving holes.

[0098] The adjusting rod 140 in this solution is inserted into the circular through hole 122 of the connecting body as a driving rod, and can move axially along the connecting body, and synchronously drive all the adjusting balls 130 in the connecting body 120 to move synchronously along the corresponding adjusting ball moving holes until the protruding connecting body 120 contacts the circular adjusting hole 113.

[0099] See also Figure 7 , which shows the structure of the adjustment rod in this solution. As can be seen from the figure, the adjustment rod 140 is cylindrical as a whole, and its size matches the circular through hole 122 on the connecting body 120. The top of the adjustment rod 140 is provided with a holding component 141 for easy operation. The specific structure of the holding component 141 can be determined according to actual needs. The holding component 141 in this solution is preferably a cylindrical handle, which is connected to the top of the adjustment rod 140 through a screw structure. At the same time, its side is provided with a number of structures that increase friction (such as bumps, protrusions, etc.) for easy operation; the holding component 141 thus provided is combined with the adjustment rod 140 to have a compact structure, stable and reliable, and convenient operation and use.

[0100] The rod body of the adjusting rod 140 is screwed to the circular through hole 122 , so that precise movement along the axial direction of the connecting body can be achieved by rotation.

[0101] The bottom end of the adjustment rod 140 is a multi-step structure 142 for synchronously driving the adjustment ball 130, so that the adjustment ball 130 in the connection body can synchronously expand (move) outward to abut against the sleeve 110 to complete the centering adjustment.

[0102] The spring 150 in this embodiment is integrally mounted on the coupling body 120 and contacts the circular step 121 at the top of the coupling body 120. As a result, when the coupling body 120 moves axially along the circular adjustment hole 113 on the sleeve, the circular step 121 compresses the spring 150, generating an elastic force that acts as a clamping force to tighten the two components to be fastened.

[0103] The outer sleeve 160 in this solution is generally a hollow cylindrical structure with an inverted "U"-shaped cross-section. A corresponding connecting plate 161 is provided at its open bottom end to securely connect it to the corresponding component to be fastened. A through hole is provided at the top end of the outer sleeve 160 to allow the adjustment rod 140 to pass through. This structure is integrally mounted on the coupling body. The connecting plate 161 at the bottom end can be securely connected to the corresponding component to be fastened via corresponding bolts, and the through hole at the top end allows the adjustment rod 140 to pass through, thereby forming a quick coupler that cooperates with the sleeve 110. Furthermore, based on the configuration of the outer sleeve 160, components such as the internal adjustment rod 140, the spring 150, and the coupling body 120 can be protected, while the entire structure is made stable and reliable, greatly improving the reliability of the entire solution.

[0104] On this basis, this solution further incorporates a self-sliding guide sleeve 170 within the through-hole at the top of the outer sleeve 160. This self-sliding guide sleeve 170 is integrally embedded within the through-hole at the top of the outer sleeve and allows the adjustment rod to pass through. It serves to limit and guide the adjustment rod 140, allowing the adjustment rod 140 to move axially. Furthermore, this self-sliding guide sleeve 170 is self-lubricating, effectively reducing friction between the self-sliding guide sleeve 170 and the adjustment rod 140, thereby improving the ease of operation of the adjustment rod 140.

[0105] See also Figure 8 The self-sliding guide sleeve 170 is specifically made of PTFE and has a two-step structure with a "T"-shaped cross-section. A through hole 171 is defined in the center of the self-sliding guide sleeve 170 along its central axis. The through hole 171 is sized to accommodate the adjustment rod 140, allowing the adjustment rod 140 to be inserted therein and provide guidance.

[0106] Since the guide sleeve is made of PTFE, the inner wall of the through hole 171 thereof will have self-lubricating properties, and then an interference fit can be adopted between the through hole 171 and the adjusting rod 140. This can ensure that when the adjusting rod 140 is movable, the adjusting rod 140 and the central axis of the guide sleeve are collinear, and the central axes of the two also remain collinear during the movement.

[0107] In order to facilitate connection with the outer sleeve 160, the small end 172 of the self-sliding guide sleeve 170 adopts a bayonet structure, and a raised block 173 is provided on the outer wall of the small end 172 along its circumference. At the same time, a number of notches 174 are evenly spaced along its circumference on the small end 172 so that the small end 172 can produce a certain deformation to facilitate snap-on installation.

[0108] The self-sliding guide sleeve 170 thus constructed can improve the concentricity of the entire structure, thereby improving the accuracy and reliability of the entire structure. Furthermore, the self-sliding guide sleeve 170 has self-lubricating properties, which can effectively reduce wear; and the bayonet structure used is easy to install.

[0109] When used, the locking pin constructed according to the above solution can simply and quickly perform self-alignment and fastening on two components to be fastened.

[0110] Before use, the two components constituting the locking pin: the sleeve 110 and the quick connector need to be installed on the two components to be fastened respectively.

[0111] Taking the illustrated scheme as an example, a through hole is opened on the first component to be fastened 400 to cooperate with the base 112 on the sleeve 110, the base 112 on the sleeve is inserted into the through hole, and the connecting base plate 111 on the sleeve is fixedly connected to the first component to be fastened 400 by connecting bolts.

[0112] A through hole is provided on the second component to be fastened 300 to match the coupling body 120 in the quick coupler, and the connecting plate 161 on the outer sleeve 160 on the outer sleeve of the quick coupler is fixedly connected to the second component to be fastened 300 by connecting bolts, so that the coupling body 120 and the through hole on the second component to be fastened 300 are opposite to each other.

[0113] After such a configuration, the first component to be fastened 400 and the second component to be fastened 300 are connected and fastened in two simple steps:

[0114] In the first step, the first component to be fastened 400 and the second component to be fastened 300 are preliminarily aligned.

[0115] In this step, it is only necessary to roughly align the sleeve 110 on the first component to be fastened 400 with the quick connector on the second component to be fastened 300 , and precise alignment is not required.

[0116] The second step is to push the adjustment rod 140 on the quick coupler with force, and then rotate the handle to a certain angle to complete the locking (such as Figure 9 shown).

[0117] See also Figure 9 In this step, the handle drives the adjusting rod 140 to rotate, and the adjusting rod 140 moves along the axis in the connecting body 120 facing the adjusting ball 130 at the bottom inner side of the connecting body 120 under the guidance of the self-sliding guide sleeve 170.

[0118] Since the adjusting ball 130 is now confined within the coupling body 120, it will cooperate with the adjusting rod 140, so that the adjusting rod 140 can drive the coupling body 120 as a whole to move along the axis within the outer sleeve 160 through the second component to be fastened 300 toward the sleeve 110 on the first component to be fastened 400; while moving, the coupling body 120 will gradually compress the spring 150 sleeved thereon, and the compressed spring 150 will generate an elastic force on the second component to be fastened 300 toward the first component to be fastened 200.

[0119] As the coupling body 120 moves toward the sleeve 110, the bottom end of the coupling body 120 drives the adjustment ball 130 to be inserted into the circular adjustment hole 113 on the sleeve 110. As the coupling body 120 is inserted into the circular adjustment hole 113 on the sleeve 110 and moves along the circular adjustment hole 113, all the adjustment balls 130, driven by the adjustment rod 140, will move synchronously along the corresponding adjustment ball moving holes toward the side wall of the circular adjustment hole 113 with the same movement distance until the protruding coupling body 120 abuts the side wall of the circular adjustment hole 113.

[0120] Since the adjusting rod 140, the connecting body 120 and other components can only move axially relative to the second component to be fastened 300 under the limitation of the outer sleeve 160, if there is a deviation in the relative position between the first component to be fastened 400 and the second component to be fastened 300, the position relationship of the adjusting ball 130 relative to the side wall of the circular adjusting hole 113 will also deviate. Under the synchronous and co-travel drive of the adjusting rod 140, the adjusting ball 130 will be driven to cooperate with the side wall of the circular adjusting hole 113, thereby adjusting the relative position between the adjusting ball 130 and the side wall of the circular adjusting hole, and then the sleeve 110 drives the first component to be fastened 400 to move relative to the second component to be fastened 300 in the deviation direction, and / or the connecting body 120 drives the second component to be fastened 300 to move relative to the first component to be fastened 400 in the deviation direction. When the connecting body 120 is exactly located at the center of the circular adjustment hole 113, all the adjustment balls 130 have the same positional relationship relative to the side wall of the circular adjustment hole 130, and maintain synchronous abutment with the side wall of the circular adjustment hole 130, so as to limit and guide the further movement of the connecting body 120 in the circular adjustment hole 113 on the sleeve 110; at this time, the relative position deviation between the first component to be fastened 200 and the second component to be fastened 300 is eliminated, so that the alignment adjustment between the first component to be fastened 200 and the second component to be fastened 300 is automatically completed.

[0121] As the connecting body 120 moves further in the circular adjustment hole 113 on the sleeve 110, the connecting body 120 passes through the circular adjustment hole 113, and when the adjusting ball 130 thereon reaches the opening of the conical structure at the bottom end of the circular adjustment hole 113, the adjusting ball 130, driven by the adjusting rod 140, moves synchronously toward the conical opening at the bottom end of the circular adjustment hole 113, and abuts against the conical opening to clamp the connecting body 120, so that the second part to be fastened 300 is connected to the first part to be fastened 200; at the same time, the connecting body 120 will further compress the spring 150, and the compressed spring 150 will further press the second part to be fastened 300 and the first part to be fastened 400, thereby realizing the locking of the second part to be fastened 300 and the first part to be fastened 400.

[0122] Finally, if it is necessary to release the connection between the first component to be fastened 400 and the second component to be fastened 300, it is only necessary to simply rotate the handle in the opposite direction by a certain angle to automatically unlock the connection.

[0123] like Figure 10As shown, after the handle is rotated in the opposite direction by a certain angle, the adjusting rod 140 moves upward, and its bottom end disengages from the adjusting ball 130. Under the action of the restoring elastic force of the spring 150, the connecting body 120 will move in the direction of disengaging from the sleeve 110. Under the guidance of the frustum opening at the bottom of the circular adjusting hole of the sleeve 110, the adjusting ball 130 is pressed back into the corresponding adjusting ball moving hole. Therefore, under the action of the restoring elastic force of the spring 150, the connecting body 120 will continue to move to disengage from the sleeve 110. At this time, the connection and tightening state between the first component to be fastened 200 and the second component to be fastened 300 will be automatically released.

[0124] As can be seen from the above, using the locking pin provided in this example to fasten components is very simple and fast, and can achieve rapid self-alignment. If it is used for rectangular array mechanical assembly, through automatic adjustment and positioning, it effectively solves the problems of tolerance product and assembly difficulty in the prior art.

[0125] This solution provides a second basic structure of the locking pin as follows Figure 11-12 shown.

[0126] As can be seen from the figure, the locking pin 100 also mainly includes a sleeve 110, a connecting body 120, a plurality of adjustment balls 130, an adjustment rod 140, a spring 150, a sleeve 160, and a self-sliding guide sleeve 170.

[0127] The specific composition structure of the sleeve 110, connecting body 120, several adjustment balls 130, adjustment rod 140, spring 150, outer sleeve 160, and self-sliding guide sleeve 170 in this locking pin 100 scheme is the same as the composition structure in the first locking pin scheme and will not be repeated here.

[0128] The difference lies in the setting scheme of the spring 150. In the locking pin 100 scheme, the spring 150 is located as a whole outside the connecting body 120, specifically sleeved on the adjusting rod 140, and placed on the upper part of the connecting body 120. Its two ends are respectively abutted against the top of the connecting body 120 and the top of the inner wall of the outer sleeve 160. Therefore, during the operation of the locking pin, pressure is always generated on the connecting body 120 facing the sleeve 110.

[0129] The second locking pin solution thus constructed can also simply and quickly perform self-alignment and fastening on two components to be fastened when used.

[0130] Before use, the two components constituting the locking pin: the sleeve 110 and the quick connector need to be installed on the two components to be fastened respectively.

[0131] by Figure 2Taking the shown solution as an example, a through hole is opened on the first component to be fastened 400 to cooperate with the base 112 on the sleeve 110, the base 112 on the sleeve is inserted into the through hole, and the connecting base plate 111 on the sleeve is fixedly connected to the first component to be fastened 400 by connecting bolts.

[0132] A through hole is provided on the second component to be fastened 300, which matches the coupling body 120 in the quick coupler. The connecting plate 161 on the outer sleeve 160 on the outer sleeve of the quick coupler is fixedly connected to the second component to be fastened 300 by connecting bolts, so that the coupling body 120 is opposite to the through hole in the second component to be fastened 300. Under the elastic force of the spring 150, the coupling body 120 extends from the outer sleeve 160, is inserted into the through hole in the second component to be fastened 300, and extends from the through hole in the second component to be fastened 300.

[0133] After such a configuration, the first component to be fastened 400 and the second component to be fastened 300 are connected and fastened in two simple steps:

[0134] In the first step, the second component to be fastened 300 is preliminarily aligned with the first component to be fastened 400 .

[0135] Because the coupling body 120 extends outside the second component to be fastened 300, this step only requires rough alignment of the coupling body 120 extending from the second component to be fastened 300 with the sleeve 110 on the first component to be fastened 400; precise alignment is not required. At this point, under the weight of the second component to be fastened 300, the sleeve 110 on the first component to be fastened 400 engages, causing the coupling body 120 to be partially pressed back into the sleeve 160, further compressing the spring 150.

[0136] The second step is to push the adjustment rod 140 on the quick coupler with force, and then rotate the handle to a certain angle to complete the locking (such as Figure 13 shown).

[0137] See also Figure 13 In this step, the handle drives the adjusting rod 140 to rotate, and the adjusting rod 140 moves along the axis in the connecting body 120 facing the adjusting ball 130 at the bottom inner side of the connecting body 120 under the guidance of the self-sliding guide sleeve 170.

[0138] Since the adjusting ball 130 is now confined within the coupling body 120, it cooperates with the adjusting rod 140, so that the adjusting rod 140 can drive the coupling body 120 as a whole to move along the axis within the outer sleeve 160 through the second component to be fastened 300 toward the sleeve 110 on the first component to be fastened 400; while moving, the compressed spring 150 will generate an elastic force on the second component to be fastened 300 toward the first component to be fastened 200.

[0139] As the coupling body 120 moves toward the sleeve 110, the bottom end of the coupling body 120 drives the adjustment ball 130 to be inserted into the circular adjustment hole 113 on the sleeve 110. As the coupling body 120 is inserted into the circular adjustment hole 113 on the sleeve 110 and moves along the circular adjustment hole 113, all the adjustment balls 130, driven by the adjustment rod 140, will move synchronously along the corresponding adjustment ball moving holes toward the side wall of the circular adjustment hole 113 with the same movement distance until the protruding coupling body 120 abuts the side wall of the circular adjustment hole 113.

[0140] Since the adjusting rod 140, the connecting body 120 and other components can only move axially relative to the second component to be fastened 300 under the limitation of the outer sleeve 160, if there is a deviation in the relative position between the first component to be fastened 400 and the second component to be fastened 300, the position relationship of the adjusting ball 130 relative to the side wall of the circular adjusting hole 113 will also deviate. Under the synchronous and co-travel drive of the adjusting rod 140, the adjusting ball 130 will be driven to cooperate with the side wall of the circular adjusting hole 113, thereby adjusting the relative position between the adjusting ball 130 and the side wall of the circular adjusting hole, and then the sleeve 110 drives the first component to be fastened 400 to move relative to the second component to be fastened 300 in the deviation direction, and / or the connecting body 120 drives the second component to be fastened 300 to move relative to the first component to be fastened 400 in the deviation direction. When the connecting body 120 is exactly located at the center of the circular adjustment hole 113, all the adjustment balls 130 have the same positional relationship relative to the side wall of the circular adjustment hole 130, and maintain synchronous abutment with the side wall of the circular adjustment hole 130, so as to limit and guide the further movement of the connecting body 120 in the circular adjustment hole 113 on the sleeve 110; at this time, the relative position deviation between the first component to be fastened 200 and the second component to be fastened 300 is eliminated, so that the alignment adjustment between the first component to be fastened 200 and the second component to be fastened 300 is automatically completed.

[0141] As the connecting body 120 moves further in the circular adjustment hole 113 on the sleeve 110, the connecting body 120 passes through the circular adjustment hole 113, and when the adjusting ball 130 thereon reaches the opening of the conical structure at the bottom end of the circular adjustment hole 113, the adjusting ball 130, driven by the adjusting rod 140, moves synchronously toward the conical opening at the bottom end of the circular adjustment hole 113, and abuts against the conical opening to clamp the connecting body 120, so that the second part to be fastened 300 is connected to the first part to be fastened 200; at the same time, the spring 150 will press the second part to be fastened 300 and the first part to be fastened 400, thereby realizing the locking of the second part to be fastened 300 and the first part to be fastened 400.

[0142] Finally, if it is necessary to release the connection between the first component to be fastened 400 and the second component to be fastened 300, it is only necessary to simply rotate the handle in the opposite direction by a certain angle to complete the unlocking of the connection.

[0143] like Figure 14 As shown, after the handle is rotated in the opposite direction by a certain angle, the adjusting rod 140 moves upward, and its bottom end disengages from the adjusting ball 130. At this time, an opposite pulling force needs to be applied to the first component to be fastened 400 or the second component to be fastened 300, and the connecting body 120 will move in the direction of disengaging from the sleeve 110. Under the guidance of the frustum opening at the bottom of the circular adjusting hole of the sleeve 110, the adjusting ball 130 is pressed back into the corresponding adjusting ball moving hole. The connecting body 120 will continue to move to disengage from the sleeve 110. At this time, the connection and tightening state between the first component to be fastened 200 and the second component to be fastened 300 will be automatically released.

[0144] As can be seen from the above, using the locking pin provided in this example to fasten components is very simple and fast, and can achieve rapid self-alignment. If it is used for rectangular array mechanical assembly, through automatic adjustment and positioning, it effectively solves the problems of tolerance product and assembly difficulty in the prior art.

[0145] The following uses the assembly of large-scale LED display products as an example to illustrate the application of the adjustable self-aligning quick-connect fastening system provided by this solution in the mechanical assembly of rectangular arrays.

[0146] LED large display products are assembled from a number of LED rectangular array units. Each LED rectangular array unit has a rectangular aluminum frame 300 (see Figure 15 as shown) and an LED device arranged thereon.

[0147] Before formal assembly, a corresponding placement hole 311 is provided on each side 310 of each rectangular aluminum frame 300 for accommodating a locking pin, preferably in the center of the side.

[0148] Regarding the method for placing the locking pins on each rectangular aluminum frame, it is sufficient to ensure that a set of adjacent two sides of each rectangular aluminum frame are locked and connected to the adjacent rectangular aluminum frame via the locking pins during assembly. The side of each rectangular aluminum frame 300 where the connecting body of the locking pin is placed and the side where the sleeve of the locking pin is placed can be determined according to actual needs. For example, only the sleeve or only the connecting body can be placed on all four sides of a rectangular aluminum frame, or only the sleeve or only the connecting body can be placed on three sides of a rectangular aluminum frame, or only the sleeve can be placed on two adjacent sides of a rectangular aluminum frame and the connecting body can be placed on the other two adjacent sides, etc., and the arrangement and assembly schemes are very flexible and convenient.

[0149] At the same time, the processing error on the rectangular array unit can be eliminated according to the installation matching structure between the rectangular array unit and the locking pin, so as to improve the accuracy of subsequent assembly.

[0150] As an example, in this embodiment, two locking pins are preferably installed on the four sides of each rectangular aluminum frame, wherein the locking pin sleeves are respectively placed in the middle of one set of adjacent two sides, and the connecting bodies of the locking pins are respectively placed in the middle of the other set of adjacent two sides.

[0151] Therefore, when assembling the LED rectangular array unit equipped with two locking pins, the LED rectangular array unit can be accurately and quickly connected and assembled through the two locking pins. The process is as follows:

[0152] See also Figure 16 First, the first side 310 of the LED rectangular array unit 300 to be connected is fastened to the adjacent rectangular array 400 using the first locking pin 100. Specifically, the connecting body 120 installed on the first side 310 of the LED rectangular array unit 300 to be connected passes through the sleeve 110 on the first side 410 of the LED rectangular array unit 300 to be connected, thereby achieving a fastened connection (the process and principle are described above and will not be repeated here). During the fastening process, the connecting body 120 cooperates with the sleeve 100 to synchronously and automatically adjust the positional relationship between the rectangular array unit 300 to be connected and the adjacent rectangular array 400 in the X-axis and Y-axis directions of the rectangular array unit 300, performing automatic alignment adjustment, so that the rectangular array unit 300 to be connected and the adjacent rectangular array 400 are precisely positioned in the X-axis and Y-axis directions.

[0153] In this way, after the LED rectangular array unit 300 to be connected and the adjacent rectangular array 400 are fixed in the X and Y axis directions, there is still a Z-axis degree of freedom between the LED rectangular array unit 300 to be connected and the adjacent rectangular array 400. Therefore, a second locking pin 200 is used on the other side of the LED rectangular array unit 300 to be connected to achieve automatic adjustment and alignment of the angle in the Z direction.

[0154] See also Figure 17Next, the second side 320 of the rectangular array unit 300 to be connected is fastened to the adjacent rectangular array 500 via the second locking pin 200. The second side 320 is adjacent to the first side 310. Specifically, the coupling body 220 installed on the second side 320 of the rectangular LED array unit 300 to be connected passes through the LED rectangular array unit 300 and engages with the sleeve 210 on the first side 510 of the adjacent rectangular array 500 to achieve a fast connection (the process and principle are described above and will not be repeated here). During the fastening process, the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array is automatically adjusted in the Z-axis direction of the rectangular array unit, and automatic alignment adjustment is performed to achieve precise positioning in the Z-axis direction.

[0155] In this way, the precise assembly of the rectangular array units to be connected is completed, and the error between the rectangular array unit 300 to be connected and the adjacent rectangular array units is eliminated through automatic alignment adjustment in the three-axis (X, Y, Z) direction, thereby avoiding the accumulation of errors in the subsequent assembly process, ensuring the accuracy of assembly, and making the flatness of the finally assembled LED large-scale display product very high.

[0156] Furthermore, since the rectangular array units can be assembled by simply operating a locking pin to complete the compression and self-alignment adjustment, the operation can be completed by one person with one hand, which is simple and efficient.

[0157] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. Adjustable self-aligning quick connection fastening method, characterized in that, The method comprises: The first side of the rectangular array unit to be connected is fastened to the adjacent rectangular array by a first locking pin, and during the fastening process, the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array is automatically adjusted in the X-axis direction and the Y-axis direction of the rectangular array unit to perform automatic alignment adjustment; The second side of the rectangular array unit to be connected is fastened to the adjacent rectangular array by a second locking pin, the second side being adjacent to the first side, and during the fastening process, the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array is automatically adjusted in the Z-axis direction of the rectangular array unit to perform automatic alignment adjustment; The first locking pin and / or the second locking pin include: a sleeve, the sleeve being arranged on a rectangular array unit adjacent to the rectangular array unit to be connected, and having an auxiliary self-adjusting structure arranged thereon; A quick coupler is provided on the rectangular array unit to be connected. The quick coupler can pass through the rectangular array unit to be connected and cooperate with the auxiliary self-adjusting structure on the adjacent rectangular array unit to automatically adjust the relative position relationship between the rectangular array unit to be connected and the adjacent rectangular array unit. At the same time, the quick coupler also forms a pressing force on the rectangular array unit to be connected facing the adjacent rectangular array unit, driving the rectangular array unit to be connected to press the adjacent rectangular array unit.

2. The adjustable self-aligning quick connection fastening method according to claim 1, characterized in that: The matching structure between the rectangular array unit and the locking pin is utilized to eliminate the machining error on the rectangular array unit.

3. The adjustable self-aligning quick connection fastening method according to claim 1, characterized in that: The first locking pin automatically aligns and adjusts the rectangular array units in the X-axis direction and the Y-axis direction simultaneously during the fastening process.

4. The adjustable self-aligning quick connection fastening method according to claim 1, characterized in that: The second locking pin automatically aligns and adjusts the rectangular array units in the Z-axis direction during the tightening process.

5. The adjustable self-aligning quick connection fastening method according to claim 1, characterized in that: There is only one fastening connection position on the side of the rectangular array unit for fastening connection.

6. Adjustable self-aligning quick-connect fastening system, characterized in that, The system mainly includes: a first locking pin, wherein the first locking pin fastens and connects the first side of the rectangular array unit to be connected with the adjacent rectangular array, and during the fastening and connecting process, automatically adjusts the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array in the X-axis direction and the Y-axis direction of the rectangular array unit so that the units are automatically aligned in the X-axis direction and the Y-axis direction; a second locking pin, wherein the second locking pin fastens and connects a second side of the rectangular array unit to be connected and an adjacent rectangular array, the second side being adjacent to the first side, and automatically adjusts the positional relationship between the rectangular array unit to be connected and the adjacent rectangular array in the Z-axis direction of the rectangular array unit during the fastening and connecting process, so that the two are automatically aligned in the Z-axis direction; the placement and matching structure between the second locking pin and the rectangular array unit can eliminate machining errors in the Z-axis direction of the rectangular array unit; The first locking pin and / or the second locking pin include: A sleeve, the sleeve being arranged on a rectangular array unit adjacent to the rectangular array unit to be connected, and having an auxiliary self-adjusting structure provided thereon; a through hole cooperating with the sleeve being opened on the adjacent rectangular array unit, the sleeve being passed through the through hole; A quick coupler is provided on the rectangular array unit to be connected. The quick coupler can pass through the rectangular array unit to be connected and cooperate with the auxiliary self-adjusting structure on the adjacent rectangular array unit to automatically adjust the relative position relationship between the rectangular array unit to be connected and the adjacent rectangular array unit. At the same time, the quick coupler also forms a pressing force on the rectangular array unit to be connected facing the adjacent rectangular array unit, driving the rectangular array unit to be connected to press the adjacent rectangular array unit.

7. The adjustable self-aligning quick-connect fastening system according to claim 6, wherein: The first locking pin is arranged on the first side of the rectangular array unit and passes through the first side to be fastened to the adjacent rectangular array.

8. The adjustable self-aligning quick-connect fastening system according to claim 7, wherein: The placement and matching structure between the first locking pin and the rectangular array unit can eliminate the processing errors of the rectangular array unit in the X-axis direction and the Y-axis direction.

9. The adjustable self-aligning quick-connect fastening system according to claim 6, wherein: The second locking pin is arranged on the second side of the rectangular array unit and passes through the second side to be fastened to the adjacent rectangular array.

10. The adjustable self-aligning quick-connect fastening system according to claim 6, wherein: The auxiliary self-adjusting structure on the sleeve is a circular adjustment hole, which can accommodate a quick connector and automatically adjust the relative position relationship between the rectangular array unit to be connected and the adjacent rectangular array unit in cooperation with the inserted quick connector.

11. The adjustable self-aligning quick-connect fastening system according to claim 10, wherein: When the quick coupler is inserted into the circular adjustment hole, the position relationship of the quick coupler relative to the sleeve is automatically adjusted so that the quick coupler is located at the center of the circular adjustment hole, thereby driving the rectangular array unit to be connected and the adjacent rectangular array unit to adjust the relative position relationship between the two.

12. The adjustable self-aligning quick-connect fastening system according to claim 6, wherein: The quick coupler comprises: The connecting body is a hollow cylindrical body, the size of which matches the circular adjustment hole on the sleeve and can move axially along the circular adjustment hole; a plurality of adjustment ball movement holes connected to the interior are provided on the connecting body along its circumference; A plurality of adjusting balls, each of which is placed in a corresponding adjusting ball moving hole and can move along the corresponding adjusting ball moving hole; An adjusting rod is inserted into the coupling body, is screwed to the coupling body, and can move axially along the coupling body to synchronously drive a plurality of adjusting balls to move synchronously along corresponding adjusting ball moving holes to protrude from the coupling body; The spring is sleeved on the connecting body and can form a pressing force on the second component to be fastened facing the first component to be fastened when the connecting body moves axially along the circular adjustment hole on the sleeve.

13. The adjustable self-aligning quick-connect fastening system of claim 6, wherein: The quick coupler comprises: The connecting body is a hollow cylindrical body, the size of which matches the circular adjustment hole on the sleeve and can move axially along the circular adjustment hole; a plurality of adjustment ball movement holes connected to the interior are provided on the connecting body along its circumference; A plurality of adjusting balls, each of which is placed in a corresponding adjusting ball moving hole and can move along the corresponding adjusting ball moving hole; An adjusting rod is inserted into the coupling body, is screwed to the coupling body, and can move axially along the coupling body to synchronously drive a plurality of adjusting balls to move synchronously along corresponding adjusting ball moving holes to protrude from the coupling body; The spring is sleeved on the adjusting rod and forms a pressing force between the second component to be fastened and the first component to be fastened when the connecting body moves axially along the circular adjusting hole on the sleeve.

14. The adjustable self-aligning quick-connect fastening system according to claim 12 or 13, characterized in that The quick coupler further comprises a sleeve which is sleeved on the coupling body, with a bottom end connected to the second component to be fastened and a top end accommodating an adjusting rod passing therethrough.

15. The adjustable self-aligning quick-connect fastening system according to claim 12 or 13, characterized in that The quick coupler further comprises a self-sliding guide sleeve which is embedded in the top end of the outer sleeve and allows the adjustment rod to pass through.

16. The adjustable self-aligning quick-connect fastening system of claim 15, wherein: The self-sliding guide sleeve is a PTFE guide sleeve.

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