Fastening assembly and quick-release type connecting system

Abstract

The utility model provides a fastening assembly and a quick release type connecting system, the fastening assembly comprises a base, a first plate and a second plate, the base is axially provided with a first end and a second end which are opposite to each other, and the second end is used for being connected with the first plate; the first blind hole extends inwards from the first end of the base; the second hole extends inwards from the outer side wall of the base in the radial direction, and the second hole is communicated with the first blind hole; the abutting block is arranged in the first blind hole, and the part, close to the hole opening of the first blind hole in the axial direction, of the abutting block is in interference fit with the inner wall of the first blind hole; at least the part, opposite to the second hole, of the abutting block is made of an elastomer; the diameter of the ball is larger than that of the second hole and smaller than that of the first blind hole, and the ball is arranged in the second hole and abuts against the abutting block; the ball body can move relative to the second hole in the radial direction of the base so that the ball body can protrude out of / shield the base, and therefore the second plate capable of being arranged on the base in a sleeving mode can be locked or unlocked between the first plate and the ball body in the axial direction.

Description

Technical Field

[0001] The utility model belongs to the technical field of fastening connections, and in particular relates to a fastening assembly and a quick-release connection system. Background Art

[0002] Fasteners are also called standard parts in the market. They are a general term for a type of mechanical parts used to fasten two or more parts (or components) into a whole. There are many types of fasteners with different performance and applications. They are highly standardized, serialized, and universal. They are the most widely used mechanical basic parts, but they usually appear in groups. For example, when you need to lock two plates together, the fastener components used are as follows. Figure 1 The figure shows a base 1, a spring 9 and a sphere 6, wherein the base 1 has a blind hole radially inward from its outer wall. The spring 9 and the sphere 6 are placed into the blind hole in turn, and then the opening of the blind hole is closed with the help of a mold to restrain the sphere 6 from falling out of the blind hole. Afterwards, when using the fastening assembly to lock and connect the plates, first, one end of the base 1 is connected to the first plate 2 by means of pressure riveting or flip riveting, and then the other end of the base 1 is inserted into the connecting hole 71 of the second plate 7, and the second plate 7 is gradually approached to the first plate 2 along the axial direction of the base 1. After the second plate 7 contacts the outer surface of the ball 6, the ball 6 is forced to press the spring 9 inside the blind hole, so that the ball can move toward the inside of the base 1, so that the second plate 7 can continue to approach the first plate 2 along the axial direction of the base 1 and finally contact the first plate 2. When the second plate 7 completely passes the ball 6, the ball 6 will also reset to the outside of the base 1 due to the lack of external force, so that the part exposed outside the base 1 finally contacts the second plate 7, and limits the second plate 7 in the axial direction of the base, so that the positions of the two plates in the axial direction are relatively fixed; when the two plates need to be disassembled, the ball 6 only needs to be moved into the base again to make the second plate 7 detach from the base 1 in the opposite direction and release the connection with the first plate 2. However, it is obvious that the traditional closing assembly method is adopted in the process of assembling the base 1, the spring 9 and the ball 6 into the fastening component. Since a closing mold is required, the assembly process is not convenient. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the main purpose of the present invention is to provide a fastening assembly and a quick-release connection system. The components included in the fastening assembly provided are lighter, easier to assemble, and more suitable for use in a quick-release connection system.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] The utility model provides a fastening assembly, which includes:

[0006] a base, the base having a first end and a second end opposite to each other along its axial direction, the second end being used for connecting to the first plate;

[0007] a first blind hole extending inwardly from the first end of the base;

[0008] a second hole, the second hole extending radially inward from the outer side wall of the base, the second hole being connected to the first blind hole;

[0009] a stop block, the stop block being disposed in the first blind hole, wherein a portion of the stop block adjacent to the opening of the first blind hole in the axial direction is interference-fitted with an inner wall of the first blind hole; and at least a portion of the stop block opposite to the second hole is made of an elastomer;

[0010] A sphere, the diameter of which is larger than the aperture of the second hole and smaller than the aperture of the first blind hole, the sphere is arranged in the second hole and abuts against the block; the sphere can move relative to the second hole along the radial direction of the base so that it protrudes / shields the base, thereby enabling the second plate sleeved on the base to be axially locked / unlocked between the first plate and the sphere.

[0011] As a further description of the above technical solution, the second hole is a blind hole or a through hole extending in the radial direction of the base;

[0012] The diameter of the second hole gradually decreases from its inner end communicating with the first blind hole to its outer end facing away from the first blind hole; or,

[0013] The diameter of the second hole is constant from its inner end communicating with the first blind hole to its outer end facing away from the first blind hole.

[0014] As a further description of the above technical solution, the stop block includes a first portion and a second portion connected to the first portion along the axial direction of the base; wherein,

[0015] The first portion is closer to the opening of the first blind hole than the second portion; the first portion is configured to be interference fit with the inner wall of the first blind hole;

[0016] The second portion abuts against the sphere.

[0017] As a further description of the above technical solution, the first part and the second part are connected in an integral manner or in a split manner.

[0018] As a further description of the above technical solution, the first part and the second part are integrally formed of an elastomer; or,

[0019] When the first part and the second part are connected in a split type, the first part is made of a plastic body, and the second part is made of an elastomer.

[0020] As a further description of the above technical solution, a connector is provided at one end of the first part facing the second part, and the second part is sleeved on the connector.

[0021] As a further description of the above technical solution, a groove is provided on the second part, and the groove is used to accommodate the part of the ball located in the first blind hole.

[0022] As a further description of the above technical solution, the groove body is a hemispherical groove formed by the outer wall of the second part being recessed inward; or,

[0023] An annular groove is formed by inward depression of the circumferential outer side wall of the second portion.

[0024] The utility model also provides a quick-release connection system, comprising:

[0025] a first plate having a connecting portion;

[0026] a second plate having a connecting hole;

[0027] A fastening assembly, comprising:

[0028] a base, the base having a first end and a second end opposite to each other along its axial direction, the second end being used to connect to the connecting portion of the first plate;

[0029] a first blind hole extending inwardly from the first end of the base;

[0030] a second hole, the second hole extending radially inward from the outer side wall of the base, the second hole being connected to the first blind hole;

[0031] a stop block, the stop block being disposed in the first blind hole, wherein a portion of the stop block adjacent to the opening of the first blind hole in the axial direction is interference-fitted with an inner wall of the first blind hole; and at least a portion of the stop block opposite to the second hole is made of an elastomer;

[0032] A sphere, the diameter of which is larger than the aperture of the second hole and smaller than the aperture of the first blind hole, the sphere is arranged in the second hole and abuts against the block; the sphere can move relative to the second hole along the radial direction of the base so that it protrudes / shields from the base, thereby enabling the second plate that is sleeved on the base through the connecting hole to be axially locked / unlocked between the first plate and the sphere.

[0033] As a further description of the above technical solution, the connecting portion of the first plate is connected to the second end of the base by means of pressure riveting, flip riveting, self-piercing, adhesive bonding or welding.

[0034] By means of the above technical solutions, the outstanding effects of the present invention are:

[0035] 1. In the fastening assembly provided by the present invention, the base still has a first end and a second end facing each other in the axial direction, and the second end is still used to connect to the first plate. Different from the existing structure, the first end of the base extends inward to form a first blind hole for setting the stop block, and the second hole formed by radially extending inward from the outer wall of the base is only used to set the sphere. The diameter of the sphere is larger than the aperture of the second hole and smaller than the aperture of the first blind hole. At the same time, the first blind hole and the second hole are connected, thereby ensuring that the sphere can be smoothly assembled with the second hole provided in the base (that is, part of the sphere protrudes from the base through the opening of the second hole). After the stop block and the sphere are assembled with the base, the sphere is set in the second hole and abuts against the stop block, and the part of the stop block adjacent to the opening of the first blind hole in the axial direction is interference fit with the inner wall of the first blind hole, which ensures that the sphere, the stop block and the base will not be easily separated, thereby ensuring the overall stability of the fastening assembly formed by the three. In the process of assembling the sphere, the stop block and the base into one, there is no need to use the closing joint to perform the closing assembly operation on the second hole, which makes assembly more convenient.

[0036] 2. In the fastening assembly provided by the present invention, at least the portion of the stop block opposite to the second hole (i.e., the portion thereof abutting against the sphere) is made of an elastomer. Therefore, like the spring used in the prior art, it can exert force to move the sphere relative to the second hole along the radial direction of the base, thereby squeezing the stop block inward, causing it to deform to a certain extent, so that the portion of the sphere protruding from the base can enter the second hole and be shielded; when the force applied to the sphere along the radial direction of the base is canceled, the elastomer is reset in the reverse direction, thereby pushing the sphere outward, causing the sphere to reset to its initial state where part of it protrudes from the base through the second hole. The second plate can be sleeved on the base, so when the first plate and the second plate need to be connected, it is only necessary to press the sphere along the radial direction of the base, so that the second plate can pass over the sphere along the axial direction of the base and approach the first plate. After that, the pressure on the sphere is released, the sphere resets, and the plate is stuck on the side of the second plate away from the first plate, so that the second plate can be locked axially between the first plate and the sphere; if the connection between the first plate and the second plate needs to be released, it is only necessary to press the sphere inward again to quickly release the connection between the first plate and the second plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural diagram of a quick-release connection system composed of fastening components and plates in the prior art;

[0038] Figure 2 This is a two-dimensional schematic diagram of the fastening assembly in the first embodiment of the present utility model;

[0039] Figure 3A three-dimensional schematic diagram of the fastening assembly in the first embodiment of the present utility model;

[0040] Figure 4 It is a two-dimensional schematic diagram of the quick-release connection system in the first embodiment of the present utility model;

[0041] Figure 5 This is a two-dimensional schematic diagram of the fastening assembly in the second embodiment of the present utility model;

[0042] Figure 6 A three-dimensional schematic diagram of a fastening assembly in a second embodiment of the present invention;

[0043] Figure 7 A two-dimensional schematic diagram of a quick-release connection system in a second embodiment of the present invention;

[0044] Figure 8 A two-dimensional schematic diagram of a fastening assembly in a third embodiment of the present invention;

[0045] Figure 9 A three-dimensional schematic diagram of a fastening assembly in a third embodiment of the present invention;

[0046] Figure 10 A two-dimensional schematic diagram of a quick-release connection system in a third embodiment of the present invention;

[0047] Figure 11 It is a two-dimensional schematic diagram of the quick-release connection system in the fourth embodiment of the present invention.

[0048] Description of Figure Numbers:

[0049] 1. Base; 2. First plate; 3. First blind hole; 4. Second hole; 5. Stop block; 51. First part; 52. Second part; 6. Sphere; 7. Second plate; 71. Connecting hole; 8. Slot; 9. Spring. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "inside", "outside", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes the implementation of the present invention based on its overall structure.

[0052] See also Figures 2 to 11 The utility model discloses a fastening assembly and a quick-release connection system. The disclosed fastening assembly includes:

[0053] A base 1, wherein the base 1 has a first end and a second end opposite to each other along its axial direction, and the second end is used to connect with the first plate 2;

[0054] a first blind hole 3, the first blind hole 3 extending inward from the first end of the base 1;

[0055] a second hole 4, the second hole 4 extending radially inward from the outer wall of the base 1, the second hole 4 being connected to the first blind hole 3;

[0056] a stopper 5, the stopper 5 being disposed in the first blind hole 3, wherein a portion of the stopper 5 axially adjacent to the opening of the first blind hole 3 is interference-fitted with an inner wall of the first blind hole 3; and at least a portion of the stopper 5 opposite the second hole 4 is made of an elastomer;

[0057] The sphere 6 has a diameter larger than the aperture of the second hole 4 and smaller than the aperture of the first blind hole 3. The sphere 6 is arranged in the second hole 4 and abuts against the block 5. The sphere 6 can move relative to the second hole 4 along the radial direction of the base 1 so that it protrudes / shields the base 1, thereby enabling the second plate 7 sleeved on the base 1 to be axially locked / unlocked between the first plate 2 and the sphere 6.

[0058] In the above arrangement, the base 1 still has a first end and a second end facing each other in the axial direction, and the second end is still used to connect to the first plate 2. Unlike existing structures, the first end of the base 1 extends inward to form the first blind hole 3 for accommodating the stop block 5, while the second hole 4 extending radially inward from the outer wall of the base 1 is only used to accommodate the ball 6. The diameter of the ball 6 is larger than the diameter of the second hole 4 and smaller than the diameter of the first blind hole 3. At the same time, the first blind hole 3 and the second hole 4 are connected, thus ensuring that the ball 6 can be smoothly assembled with the second hole 4 provided in the base 1 (i.e., a portion of the ball 6 protrudes from the base 1 through the opening of the second hole 4). After the stop block 5 and the sphere 6 are assembled with the base 1, the sphere 6 is arranged in the second hole 4 and is in abutment with the stop block 5, and the portion of the stop block 5 axially adjacent to the opening of the first blind hole 3 is interference fit with the inner wall of the first blind hole 3, which ensures that the sphere 6, the stop block 5 and the base 1 will not be easily separated, thereby ensuring the overall stability of the fastening assembly composed of the three; in the process of assembling the sphere 6, the stop block 5 and the base 1 into one, there is no need to use a closing mold to perform closing assembly operation on the second hole 4, and the assembly is more convenient.

[0059] At least the portion of the stop block 5 that is opposite to the second hole 4 (i.e., the portion that abuts against the sphere 6) is made of an elastomer. Therefore, like the spring 9 used in the prior art, it can apply force to move the sphere 6 relative to the second hole 4 along the radial direction of the base 1, thereby squeezing the stop block 5 inward and causing it to deform to a certain extent, so that the portion of the sphere 6 protruding from the base 1 can enter the second hole 4 for shielding; when the force applied to the sphere 6 along the radial direction of the base 1 is canceled, the elastomer is reset in the reverse direction, and will push the sphere 6 outward, so that the sphere 6 is reset to its initial state where part of it protrudes from the base 1 through the second hole 4. The second plate 7 can be sleeved on the base 1. Therefore, when the first plate 2 and the second plate 7 need to be connected, it is only necessary to press the sphere 6 along the radial direction of the base 1, so that the second plate 7 can pass over the sphere 6 along the axial direction of the base 1 and approach the first plate 2. After that, the pressing of the sphere 6 is cancelled, and the sphere 6 is reset, and the plate will be stuck on the side of the second plate 7 away from the first plate 2, so that the second plate 7 can be axially locked between the first plate 2 and the sphere 6; if the connection between the first plate 2 and the second plate 7 needs to be released, it is only necessary to press the sphere 6 inward again to quickly release the connection between the first plate 2 and the second plate 7.

[0060] See also Figures 2 to 4 ,as well as Figures 8 to 10Specifically, in the first and third embodiments, the second holes 4 are through holes extending radially along the base 1, with their central portions communicating with the first blind hole 3. The diameter of the second hole 4 gradually decreases from its inner end communicating with the first blind hole 3 to its outer end facing away from the first blind hole 3, and its cross-section is conical with a certain curvature, which is more suitable for partially accommodating the outer surface of the sphere 6 therein. Of course, in other embodiments, the diameter of the second hole 4 can also be constant from its inner end communicating with the first blind hole 3 to its outer end facing away from the first blind hole 3.

[0061] See also Figures 5 to 7 ,as well as Figure 11 Specifically, in the second and fourth embodiments, unlike the first and third embodiments, the second holes 4 are blind holes extending inward from the outer wall of the base 1 along the radial direction of the base 1; and their bottoms are connected to the first blind holes.

[0062] Please continue reading Figures 2 to 4 Specifically, in the first embodiment, the stopper 5 includes a first portion 51 and a second portion 52 connected to the first portion 51 along the axial direction of the base 1; wherein the first portion 51 is closer to the orifice of the first blind hole 3 than the second portion 52; the first portion 51 is used to have an interference fit with the inner wall of the first blind hole 3; and the second portion 52 is used to abut against the sphere 6. More specifically, in this embodiment, the first portion 51 and the second portion 52 are connected in a split manner, the first portion 51 is made of metal, the second portion 52 is made of an elastomer, and a connector is integrally provided at one end of the first portion 51 facing the second portion 52; the first portion 51 and the connector can be integrally formed and have a T-shaped cylindrical shape as a whole, and the second portion 52 is cylindrically sleeved on the connector, thereby forming the stopper 5. It should be understood that, when force is applied to the sphere 6 to squeeze the second part 52 inward and deform it, in the radial direction of the base 1, even after the second part 52 has undergone maximum deformation, the highest point of the sphere 6 protruding from the opening of the second hole 4 is still not completely covered by the base 1, and the second plate 7 mounted on the base 1 must be allowed to smoothly pass over the sphere 6 in the axial direction, thereby being relatively close to or away from the first plate 2. In other words, the aperture size of the connecting hole 71 opened on the second plate 7 must be set according to the diameter of the base 1, the distance that the sphere 6 can move by squeezing the block 5 inward in the radial direction of the base 1, and the maximum amount that the sphere 6 can protrude from the base 1 in the radial direction.

[0063] See also Figures 5 to 11Specifically, in the second, third and fourth embodiments, unlike the first embodiment, the first part 51 and the second part 52 are connected as one piece. More specifically, the first part 51 and the second part 52 are integrally formed of an elastomer. The outer diameter of the first part 51 is slightly larger than the outer diameter of the second part 52, so that it can have an interference fit with the inner wall of the first blind hole 3, ensuring that after the fastening assembly is assembled, the block 5 and the ball 6 will not easily fall off the base 1.

[0064] See also Figures 5 to 7 ,as well as Figure 11 Specifically, in the second embodiment and the fourth embodiment, a groove 8 is provided on the second portion 52, and the groove 8 is used to accommodate the portion of the sphere 6 located in the first blind hole 3. When the sphere 6, the stop block 5 and the base 1 are assembled as a whole, the sphere 6 can be first clamped in the groove 8 (it should be understood that part of the sphere 6 protrudes from the outside of the groove 8) to form a preassembled component with the stop block 5, and then the preassembled component is pressed into the base 1 along the inner wall of the first blind hole 3. After the sphere 6 is assembled to the second hole 4, the stop block 5 is simultaneously pressed into place, and the sphere 6 and the stop block 5 are assembled with the base 1 to form the fastening assembly.

[0065] Specifically, in the second and fourth embodiments, the groove 8 is a hemispherical groove formed by the outer wall of the second portion 52 being recessed inwardly to fit the outer surface of the sphere 6. In the third embodiment, please refer to Figures 8 to 10 Unlike the second and fourth embodiments, the groove 8 is an annular groove formed by an inward depression of the circumferential outer wall of the second portion 52 to fit the outer surface of the sphere 6. When assembling the sphere 6, the stop 5, and the base 1 as a whole, the sphere 6 can be first assembled into the second hole 4, and then the stop 5 can be pressed into the first blind hole 3, so that the portion of the sphere 6 located in the first blind hole 3 enters the annular groove.

[0066] Specifically, the quick-release connection system disclosed in the present utility model includes:

[0067] A first plate 2, wherein the first plate 2 has a connecting portion;

[0068] A second plate 7, wherein the second plate 7 has a connecting hole 71;

[0069] A fastening assembly, comprising:

[0070] A base 1, wherein the base 1 has a first end and a second end opposite to each other along its axial direction, wherein the second end is used to connect to the connecting portion of the first plate 2;

[0071] a first blind hole 3, the first blind hole 3 extending inward from the first end of the base 1;

[0072] a second hole 4, the second hole 4 extending radially inward from the side wall of the base 1, the second hole 4 being connected to the first blind hole 3;

[0073] a stopper 5, the stopper 5 being disposed in the first blind hole 3, wherein a portion of the stopper 5 axially adjacent to the opening of the first blind hole 3 is interference-fitted with an inner wall of the first blind hole 3; and at least a portion of the stopper 5 opposite the second hole 4 is made of an elastomer;

[0074] The sphere 6 has a diameter greater than the aperture of the second hole 4. The sphere 6 is arranged in the second hole 4 and abuts against the block 5. The sphere 6 can move relative to the second hole 4 along the radial direction of the base 1 so that it protrudes / shields the base 1, thereby enabling the second plate 7 that is sleeved on the base 1 through the connecting hole 71 to be axially locked / unlocked between the first plate 2 and the sphere 6.

[0075] Before the first plate 2 and the second plate 7 are connected and locked using the fastening assembly, the sphere 6 is first pushed from the opening of the first blind hole 3 into the second hole 4, and then the stop block 5 is pressed into the base 1 along the inner wall of the first blind hole 3. After the stop block 5 and the inner wall of the first blind hole 3 are interference fit, the sphere 6, the stop block 5 and the base 1 are assembled. Then, the first plate 2 is connected to the second end of the base 1; thereafter, the second plate 7 is put onto the base 1 from the first end of the base 1, and force is applied to the sphere 6 to squeeze the stop block 5 inward. , so that it can move radially toward the inside of the base 1, and the second plate 7 can pass over the sphere 6 and continue to approach the first plate 2, and the force applied to the sphere 6 is cancelled. The sphere 6 is reset to the outside of the base 1, and can cooperate with the first plate 2 in the axial direction to clamp the second plate 7, thereby realizing the locking connection between the first plate 2 and the second plate 7; applying force to the sphere 6 again to make it move toward the inside of the base 1 can cancel its axial limitation on the second plate 7, so that the second plate 7 can be removed from the base 1, that is, the first plate 2 and the second plate 7 are unlocked.

[0076] See also Figure 4 、 Figure 7 as well as Figure 10Specifically, in the first embodiment, the second embodiment and the third embodiment, the connection portion of the first plate 2 is in the shape of a hole, and is connected to the second end of the base 1 by means of pressure riveting. Of course, in other embodiments, the connection portion of the first plate 2 and the second end of the base 1 can also be connected by riveting, self-piercing, adhesive bonding, welding, etc. Figure 11 As shown, in the fourth embodiment, a self-puncture connection method is adopted.

[0077] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any changes, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fastening assembly, characterized in that: include: a base, the base having a first end and a second end opposite to each other along its axial direction, the second end being used for connecting to the first plate; a first blind hole extending inwardly from the first end of the base; a second hole, the second hole extending radially inward from the outer side wall of the base, the second hole being connected to the first blind hole; a stop block, the stop block being disposed in the first blind hole, wherein a portion of the stop block adjacent to the opening of the first blind hole in the axial direction is interference-fitted with an inner wall of the first blind hole; and at least a portion of the stop block opposite to the second hole is made of an elastomer; A sphere, the diameter of which is larger than the aperture of the second hole and smaller than the aperture of the first blind hole, the sphere is arranged in the second hole and abuts against the block; the sphere can move relative to the second hole along the radial direction of the base so that it protrudes / shields the base, thereby enabling the second plate sleeved on the base to be axially locked / unlocked between the first plate and the sphere.

2. The fastening assembly according to claim 1, wherein: The second hole is a blind hole or a through hole extending in the radial direction of the base; The diameter of the second hole gradually decreases from its inner end communicating with the first blind hole to its outer end facing away from the first blind hole; or, The diameter of the second hole is constant from its inner end communicating with the first blind hole to its outer end facing away from the first blind hole.

3. The fastening assembly according to claim 1, wherein: The stop block includes a first portion and a second portion connected to the first portion along the axial direction of the base; wherein, The first portion is closer to the opening of the first blind hole than the second portion; the first portion is configured to be interference-fitted with the inner wall of the first blind hole; The second portion abuts against the sphere.

4. The fastening assembly according to claim 3, wherein: The first part and the second part are connected in an integral manner or in a split manner.

5. The fastening assembly according to claim 4, wherein: The first part and the second part are integrally formed of an elastomer; or, When the first part and the second part are connected in a split type, the first part is made of a plastic body, and the second part is made of an elastomer.

6. The fastening assembly according to claim 5, wherein: A connecting body is provided at one end of the first part facing the second part, and the second part is sleeved on the connecting body.

7. The fastening assembly according to claim 3, wherein: A groove is provided on the second portion, and the groove is used to accommodate the portion of the ball located in the first blind hole.

8. The fastening assembly according to claim 7, wherein: The groove body is a hemispherical groove formed by the outer wall of the second part being recessed inward; or, An annular groove is formed by inward depression of the circumferential outer side wall of the second portion.

9. A quick-release connection system, characterized in that: include: a first plate having a connecting portion; a second plate having a connecting hole; A fastening assembly, comprising: a base, the base having a first end and a second end opposite to each other along its axial direction, the second end being used to connect to the connecting portion of the first plate; a first blind hole extending inwardly from the first end of the base; a second hole, the second hole extending radially inward from the outer side wall of the base, the second hole being connected to the first blind hole; a stop block, the stop block being disposed in the first blind hole, wherein a portion of the stop block adjacent to the opening of the first blind hole in the axial direction is interference-fitted with an inner wall of the first blind hole; and at least a portion of the stop block opposite to the second hole is made of an elastomer; A sphere, the diameter of which is larger than the aperture of the second hole and smaller than the aperture of the first blind hole, the sphere is arranged in the second hole and abuts against the block; the sphere can move relative to the second hole along the radial direction of the base so that it protrudes / shields from the base, thereby enabling the second plate that is sleeved on the base through the connecting hole to be axially locked / unlocked between the first plate and the sphere.

10. The quick-release connection system according to claim 9, wherein: The connecting portion of the first plate is connected to the second end of the base by means of pressure riveting, flip riveting, self-piercing, adhesive bonding or welding.

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