CN115596760A - Fixing assembly - Google Patents

Abstract

The application discloses fixed subassembly, fixed subassembly is used for installing to the mounting panel, includes: the metal bracket comprises a fixing plate, a shaft receiving part and an elastic sheet, wherein the shaft receiving part and the elastic sheet are arranged at one end of the fixing plate, and the shaft receiving part is provided with a receiving channel extending along the axial direction; a metal shaft passing through the receiving channel; and a metal ring connected to the metal shaft such that the metal ring is rotatably connected to the metal bracket by the metal shaft; wherein the spring plate is configured to be elastically deformable to press the metal shaft to control rotation of the metal ring relative to the metal bracket. The fixing assembly of this application exerts the rotation resistance to the metal shaft through the elastic force that elastic deformation of shell fragment produced to the rotation of control becket. Not only prolonged the life of fixed subassembly, can bear bigger pulling force moreover.

Description

Fixing assembly

Technical Field

The present application relates to a securing assembly that may be used to secure a component (e.g., luggage) to a structure (e.g., an interior portion of a trunk or roof of a vehicle).

Background

The securing assembly is used to secure a component such as luggage to a structure such as the interior of a luggage compartment, the rear of an interior compartment, a closed or open cargo area, or the roof of a vehicle. Generally, the fixing assembly includes a metal ring and a metal bracket, the metal ring being connected to the metal bracket and being rotatable with respect to the metal bracket.

In some cases, the metal ring may rotate too freely relative to the metal bracket, causing the metal ring to rattle relative to the metal bracket, which may cause the vehicle to rattle while traveling. In some cases, the metal ring needs to exert excessive force to rotate relative to the metal bracket, resulting in possible jamming of the metal ring. This is undesirable.

Disclosure of Invention

At least one object of the present application is to provide a securing assembly for mounting to a mounting plate, comprising: the metal bracket comprises a fixing plate, a shaft receiving part and an elastic sheet, wherein the shaft receiving part and the elastic sheet are arranged at one end of the fixing plate, and the shaft receiving part is provided with a receiving channel extending along the axial direction; a metal shaft passing through the receiving channel; and a metal ring connected to the metal shaft such that the metal ring is rotatably connected to the metal bracket by the metal shaft; wherein the spring plate is configured to be elastically deformable to press the metal shaft to control rotation of the metal ring relative to the metal bracket.

According to the above, the shaft receiving portion and the spring plate extend upward from one end of the fixing plate away from the upper surface of the fixing plate, the shaft receiving portion includes a spring plate accommodating portion, the receiving channel is communicated with the spring plate accommodating portion, the spring plate accommodating portion is located on one side of the shaft receiving portion away from the upper surface of the fixing plate, and the spring plate accommodating portion extends from the top of the shaft receiving portion to the one end of the fixing plate, wherein the spring plate is at least partially located in the spring plate accommodating portion when elastically deformed.

According to the above, the shaft receiving portion includes a shaft receiving cylinder defining the receiving passage and a connecting portion connecting the shaft receiving cylinder to the one end of the fixing plate, the connecting portion extending from the one end of the fixing plate to above the fixing plate; wherein the spring plate accommodating portion is formed by the shaft receiving cylinder and a window on the connecting portion.

According to the above, the spring plate has an upper spring plate portion and a lower spring plate portion, the lower spring plate portion is connected to the fixing plate, the proximal end of the upper spring plate portion is connected to the lower spring plate portion, and the distal end of the upper spring plate portion forms a free end; wherein the spring plate is configured to: when the fixing assembly is mounted to the mounting plate, the lower portion of the elastic sheet is subjected to acting force from the mounting plate, so that the elastic sheet is elastically deformed, the upper portion of the elastic sheet is tightly held on the metal shaft, and the metal ring is controlled to rotate relative to the metal support.

According to the above, in the free state of the elastic sheet, the lower portion of the elastic sheet has the lowest point lower than the lower surface of the fixing plate.

According to the above, the upper part of the spring plate has a curved inner surface facing the metal shaft, the curved inner surface matching the outer surface of the metal shaft.

According to the above, the spring plate includes a bent section, the bent section connects the upper portion of the spring plate and the lower portion of the spring plate, and the bent section protrudes toward the metal shaft.

According to the above, the fixing assembly further comprises at least one pair of anti-rotation blocks formed to extend downward from the lower surface of the fixing plate.

According to the above, both ends of the metal shaft are connected with the metal ring by interference fit.

According to the above, the fixing assembly further comprises an upper cover and a lower cover, wherein the upper cover is covered on the lower cover; wherein the metal bracket, the metal shaft, and the metal ring are mounted to the lower cover, and the upper cover includes an opening therein configured to receive the metal ring.

According to the above, the upper cover or the lower cover includes the operation portion forming the operation space so as to operate the metal ring.

Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.

Drawings

FIG. 1A is a perspective view of a mounting assembly after the mounting assembly has been mounted to a mounting plate according to one embodiment of the present application;

FIG. 1B is an exploded view of the mounting assembly and mounting plate shown in FIG. 1A;

fig. 2A and 2B are perspective views of the metal bracket, the metal shaft and the metal ring in fig. 1A at two angles;

FIG. 2C is an exploded view of the metal holder, metal shaft and metal ring of FIG. 1A;

FIG. 3A is a perspective view of the metal holder shown in FIG. 1A;

FIG. 3B is a right side view of the metal bracket shown in FIG. 3A;

FIG. 3C isbase:Sub>A cross-sectional view of the metal stent shown in FIG. 3B taken along line A-A;

FIG. 4 illustrates a schematic view of the mounting assembly shown in FIG. 1A mounted to a mounting plate;

FIG. 5A is a perspective view of a securing assembly according to another embodiment of the present application;

fig. 5B is an exploded view of the securing assembly shown in fig. 5A.

Detailed Description

Various embodiments of the present application will now be described with reference to the accompanying drawings, which form a part hereof. It should be understood that although directional terms, such as "front," "rear," "upper," "lower," "left," "right," "top," "bottom," "inner," "outer," and the like may be used herein to describe various example structural portions and elements of the application, these terms are used herein for convenience of description only and are intended to be based on the example orientations shown in the figures. Because the embodiments disclosed herein can be arranged in a variety of orientations, these directional terms are used for purposes of illustration only and are not to be construed as limiting.

Fig. 1A and 1B are schematic structural views of a fixing assembly 100 according to the present application, for illustrating a general structure of the fixing assembly 100, wherein fig. 1A illustrates a perspective view of the fixing assembly 100 mounted to a mounting plate 120, as viewed from above, and fig. 1B illustrates an exploded view of the fixing assembly 100 and the mounting plate 120.

As shown in fig. 1A and 1B, the fixing member 100 has a substantially square box shape, and includes an upper cover 101 and a lower cover 103, and the upper cover 101 is coupled to the lower cover 103. In the present embodiment, the upper cover 101 and the lower cover 103 are connected by a snap structure. For example, a projection 109 is provided on the rear side of the lower cover, and a corresponding slot (not specifically shown) for receiving the projection 109 is provided on the upper cover 101. The upper cover 101 includes an operation portion 111 and an opening 110 surrounding the operation portion 111, the opening 110 is used for accommodating the metal ring 104, and an operation space for an operator to operate the metal ring 104 is formed on the operation portion 111. The lower cover 103 includes an opening 130, a pair of shaft holes 107, and a stopper hole 105. In the present embodiment, the opening 130 is surrounded by four side walls of the lower cover 103, the pair of shaft holes 107 are symmetrically provided at the rear ends of the left and right side walls of the lower cover 103, and the stopper hole 105 is located at the front side of the lower cover 103.

The fixing assembly 100 further includes a metal bracket 102, a metal shaft 106, and a metal ring 104. The metal ring 104 is rotatably connected to the metal bracket 102 by a metal shaft 106. Specifically, the metal bracket 102 includes a fixing plate 241 and a shaft receiving portion 145, the shaft receiving portion 145 being provided at a rear end of the fixing plate 241, the shaft receiving portion 145 being capable of receiving the metal shaft 106 and being clearance-fitted with the metal shaft 106 such that the metal shaft 106 is rotatably connected to the metal bracket 102. The metal ring 104 has a substantially "U" shape, and both ends thereof are fixedly connected to both ends of a metal shaft 106, so that the metal ring 104 can be rotatably connected to the metal bracket 102 via the metal shaft 106.

The metal bracket 102, the metal shaft 106 and the metal ring 104 are connected to the lower cover 103, and the metal ring 104 protrudes from the opening 130 of the lower cover 103. Specifically, the outer sides of both ends of the metal shaft 106 are inserted into a pair of shaft holes 107 of the lower cover 103. And a tongue 108 inserted into the limiting hole 105 of the lower cover 103 is further provided on the fixing plate 141 of the metal bracket 102. Thus, the fixing plate 141 of the metal bracket 102 is coupled to the lower side of the lower cover 103 through the tongue 108 and the stopper hole 105. The shaft receiving portion 145 of the metal bracket 102 is connected to the lower cover 103 through the metal shaft 106. The metal ring 104 passes out of the opening 130 in the lower cover 103 into the opening 110 in the upper cover 101.

Also, the metal bracket 102 is attached to the upper side of the mounting plate 120. Specifically, the fixing plate 141 of the metal bracket 102 is provided with a hole 115 at the center thereof, and the bolt 131 and the nut 132 fasten the metal bracket 102 to the mounting plate 120 through the hole 115 and the hole 125. As an example, in order to prevent undesired rotation during fastening, the fixing plate 141 of the metal bracket 102 is provided at both left and right sides thereof with a pair of rotation preventing blocks 112 extending downward, and the rotation preventing blocks 112 are adapted to be inserted into a pair of rotation preventing holes 122 of the mounting plate 120 to prevent the metal bracket 102 from rotating when fastened to the mounting plate 120.

Thus, the fixing assembly 100 can be mounted on the mounting plate 120. When the metal ring 104 is not used, the metal ring 104 can be rotated to an angle substantially parallel to the fixing plate 141 to be received in the opening 110 of the upper cover 101. When the metal ring 104 is used, the operator can pull out the metal ring 104 through the operation space of the operation part 111 and rotate it to extend out of the upper surface of the upper cover 101 for connecting with the parts such as luggage. This protects the internal components of the mounting assembly 100 and also provides a smooth, aesthetically pleasing exterior to the mounting assembly 100.

Fig. 2A-2C show specific configurations of the metal holder 102, the metal shaft 106, and the metal ring 104. Fig. 2A and 2B are perspective views respectively showing the metal holder 102, the metal shaft 106 and the metal ring 104 when they are connected together, and fig. 2C is an exploded view showing the metal holder 102, the metal shaft 106 and the metal ring 104 when they are seen from top to bottom.

As shown in fig. 2A to 2C, the metal bracket 102 further includes a spring 251 in addition to the fixing plate 141 and the shaft receiving portion 145, and the spring 251 has a certain elasticity and can be elastically deformed to press the metal shaft 106, so as to control the rotation of the metal ring 104 relative to the metal bracket 102.

The fixing plate 141 of the metal bracket 102 has an upper surface 242 and a lower surface 243, and the resilient pieces 251 are coupled to the rear end 244 of the fixing plate 141 together with the shaft receiving part 145 and each extend upward from the rear end 244 of the fixing plate 141 away from the upper surface 242 of the fixing plate 141. The shaft receiving portion 145 includes a shaft receiving cylinder 247 and a connecting portion 248, the connecting portion 248 connecting the shaft receiving cylinder 247 to the rear end 244 of the fixing plate 141. In the present embodiment, the connecting portion 248 extends from the rear end 244 of the fixed plate 141 to above the fixed plate 141, and the shaft receiving cylinder 247 is connected above the connecting portion 248. Also in the present embodiment, the shaft receiving cylinder 247 has a cylindrical shape, a receiving passage 261 extending in the axial direction of the metal shaft 106 is defined in the shaft receiving cylinder 247, the receiving passage 261 is used for accommodating the metal shaft 106, and the metal shaft 106 can rotate in the receiving passage 261. A pair of shaft holes 263 are formed at both ends of the "U" -shaped metal ring 104, and both ends of the metal shaft 106 disposed in the receiving channel 261 may be fixedly coupled to the pair of shaft holes 263 so that the metal ring 104 can rotate with the rotation of the metal shaft 106. This arrangement enables the rotation of the metal ring 104 relative to the metal holder 102 to be controlled by controlling the rotation of the metal shaft 106. In the present embodiment, the two ends of the metal shaft 106 are fixedly connected to the pair of shaft holes 263 by interference fit. The connection mode is firm, and the processing is convenient. In other embodiments, the metal shaft 106 and the metal ring 104 may be connected by a welding process, so long as the metal shaft 106 rotates to drive the metal ring 104 to rotate.

A window is opened at a rear side of the shaft receiving part 145, extending downward from the top of the shaft receiving part 145 to a rear end 244 of the fixing plate 141, for forming a spring receiving part 262, the spring receiving part 262 communicating with the receiving channel 261. The resilient receiving portion 262 can provide a space for the resilient 251 to be elastically deformed, so that the resilient 251 is at least partially located in the resilient receiving portion 262 when being elastically deformed. In some other embodiments, the shaft receiving portions 145 may be provided as a pair having a certain interval for forming the elastic receiving portion 262.

Specifically, the spring 251 has an upper spring portion 252, a bent portion 255 and a lower spring portion 253, and the bent portion 255 connects the upper spring portion 252 and the lower spring portion 253. A lower spring portion 253 is connected to the rear end 244 of the mounting plate 141, a proximal end 255 of an upper spring portion 252 is connected to the lower spring portion 253 via a bent section 255, and a distal end 254 of the upper spring portion 252 forms a free end. Thus, the elastic sheet 251 can have certain elasticity. In the free state of the spring 251, the upper portion 252 of the spring has a certain gap with the metal shaft 106. When the lower spring portion 253 is acted by a force, the spring 251 can be elastically deformed, so that the upper spring portion 252 moves towards the metal shaft 106 and clasps the metal shaft 106, thereby controlling the rotation of the metal shaft 106 by applying a resistance to the metal shaft 106. More specific shapes of the resilient pieces 251 will be described with reference to fig. 3A-3B.

In the present embodiment, for convenience of processing, the metal bracket 102 is formed by cold-stamping and bending a metal plate, and then by cutting out on the shaft receiving portion 145 to form the spring piece accommodating portion 262 and the spring piece 251. The specific shape of the resilient piece 251 is also formed by a cold stamping and bending process.

Fig. 3A to 3C showbase:Sub>A more specific structure of the metal bracket 102, in which fig. 3A showsbase:Sub>A perspective view of the metal bracket 102, fig. 3B showsbase:Sub>A right side view of the metal bracket 102 in fig. 3A, and fig. 3C showsbase:Sub>A cross-sectional view of the metal bracket 102 along the linebase:Sub>A-base:Sub>A in fig. 3B.

As shown in fig. 3A to 3C, the left and right sides of the elastic piece 251 of the metal bracket 102 are spaced from the shaft receiving portion 145 by a certain distance, that is, only the lower portion 253 of the elastic piece 251 is connected to the fixing plate 141, and the other portions are not in contact with the shaft receiving portion 145. Therefore, the elastic piece 251 can bring the elastic upper portion 252 into motion when the elastic lower portion 253 is stressed.

The lower clip portion 253 has a downwardly convex shape with respect to the lower surface 243 of the fixing plate 141 such that the lower clip portion 253 has a lowest point lower than the lower surface 243. In this embodiment, the lower portion 253 of the spring is connected to the edge of the fixing plate 141 at the front end thereof, and the lower portion 253 of the spring is formed to extend downward from the front end to the rear end thereof. Thus, when the metal bracket 102 is attached to the attachment plate 120, the attachment plate 120 presses the lower spring portion 253 to be in close contact with the lower surface 243 of the fixed plate 141, and the lower spring portion 253 receives a force from the attachment plate 120, thereby elastically deforming the spring 251. When the spring 251 is elastically deformed, the spring lower portion 253 moves upward, so that the elastic upper portion 252 clasps the metal shaft 106, thereby applying resistance to the rotation of the metal shaft 106.

In the present embodiment, the spring 251 of the metal holder 102 has a substantially "3" shape, and the upper portion 252 of the spring 251 has an inner surface 367 facing the metal shaft 106 and curved away from the metal shaft 106, and as an example, the curved inner surface 367 substantially matches the outer surface shape and size of the metal shaft 106. The bent section 256 of the spring 251 protrudes toward the metal shaft 106. That is, the upper portion 252 and the bent portion 256 of the dome 251 are bent in opposite directions. Such a shape is beneficial for the elastic piece 251 to deform elastically, so that after the upper portion 252 of the elastic piece clasps the metal shaft 106, the bent section 256 can deform to a certain extent in the opposite direction, and the phenomenon that the upper portion 252 of the elastic piece clasps the metal shaft 106 due to too much force, that is, too much resistance to rotation of the metal shaft 106, makes rotation of the metal shaft 106 too difficult is prevented. The resistance to rotation of the metal shaft 106 can be adjusted by adjusting the force required to bend the bend sections 256.

Fig. 4 showsbase:Sub>A cross-sectional view of the fixing assembly 100 and the mounting plate 120 along the linebase:Sub>A-base:Sub>A in fig. 3B after the fixing assembly 100 is mounted to the mounting plate 120, for more clearly showing the relationship between the resilient piece 251 and the metal shaft 106 when the resilient piece 251 is deformed. Wherein the upper cover 101 and the lower cover 103 are omitted for the sake of more clearly illustrating the structure of the metal bracket 102, the metal shaft 106 and the metal ring 104.

As shown in fig. 4, by tightening the bolt 131 and the nut 132, the upper surface of the mounting plate 120 abuts against the lower surface 243 of the metal bracket 102, and the spring 251 is brought into an elastically deformed state by pressing the spring lower portion 253 of the spring 251. After the elastic piece 251 is elastically deformed, the elastic piece lower portion 253 swings upwards, so that the bending section 256 and the elastic upper portion 252 are driven to swing upwards and inwards until the metal shaft 106 is held tightly, and the elastic upper portion 252 of the elastic piece 251 is in interference fit with the metal shaft 106 to apply resistance to the metal shaft 106 along the radial direction of the metal shaft 106, so that the metal shaft 106 is prevented from rotating. In the state shown in the figure, by adjusting the bending deformation degree of the bending section 256, the interference between the elastic upper portion 252 and the metal shaft 106 can be adjusted, so as to adjust the rotation resistance of the metal shaft 106 to a certain degree.

Fig. 5A and 5B illustrate the structure of a fixing assembly 500 of another embodiment of the present application, wherein fig. 5A illustrates a perspective view of the fixing assembly 500 from above, and fig. 5B illustrates an exploded view of the fixing assembly 500. As shown in fig. 5A and 5B, the fixing assembly 500 is also mounted to the mounting plate by a fastener (e.g., bolt 131), and the fixing assembly 100 is similar in that the fixing assembly 500 also includes a metal ring 504, a metal bracket 502, and a metal shaft 506 connected together, wherein the specific structure of the metal bracket 502 and the metal shaft 506 is substantially the same as that of the metal bracket 102 and the metal shaft 106. The metal ring 504 also has a beam portion 571 added to the metal ring 104 so that the metal ring 504 has a substantially box shape. This makes the shape of the metal ring 504 more stable, and thus can withstand a greater tensile force.

And the fixing assembly 500 also comprises an upper cover 501 and a lower cover 503 which are covered and connected together, wherein the upper cover 501 is connected above the lower cover 503. The upper cover 501 has an opening 510, the lower cover 503 has an opening 530, and the metal ring 504 extends out of the fixing assembly 500 from the opening 530 and the opening 510 for connecting other components. Unlike the fixing assembly 100, in the present embodiment, the operation portion 511 is no longer provided on the upper cover 501, but is provided on the lower cover 503, so that the operation space on the operation portion 511 can be set larger, which is more convenient for an operator to manually pull the metal ring 504.

In various embodiments of the present application, the metal bracket, the metal shaft, and the metal ring are made of a metal material, for example, a high carbon steel, because the metal ring, the metal shaft, and the metal bracket may need to withstand a large tensile force according to the weight of a component, such as luggage, when the component, such as luggage, is coupled to the metal ring. The metal ring, the metal shaft and the metal bracket are made of metal, so that the damage to the components can be avoided. And the upper and lower covers may be made of plastic to reduce the weight and cost of the fixing assembly. In order to maintain the consistency of the appearance, the upper cover and the lower cover can be made to have the appearance consistent with the metal ring through a plating process and the like.

In some fixing assemblies, in order to control the rotation of the metal ring, a rotational resistance is applied to the metal shaft by a frictional force between the plastic members or between the plastic members, thereby controlling the rotation of the metal ring. However, plastic parts are subject to wear, resulting in a limited service life of the fastening assembly.

In various embodiments of the present application, the fixing member applies a rotation resistance to the metal shaft by an elastic force generated by elastic deformation of the elastic sheet, thereby controlling rotation of the metal ring. Because the shell fragment also is made for metal material, consequently fixed subassembly can have longer life.

Meanwhile, the metal support, the metal shaft and the metal ring of the fixing assembly are made of metal, the metal ring and the metal shaft are fixedly connected through interference fit, and the metal shaft is arranged in the shaft receiving cylinder which is approximately cylindrical. Each connection structure between metal support, metal axle and the becket is more reliable and stable, even when the pulling force that the becket received was great, the structure of fixed subassembly also is difficult destroyed. Thereby enabling the metal ring of the fixing assembly to withstand greater tensile forces in all directions, for example 10000N.

In addition, the fixed subassembly of this application still is equipped with upper cover and lower cover, through setting up appropriate structure, can be when need not to use the becket, accomodate the becket in the upper cover for the outward appearance of fixed subassembly is more level and more smooth, pleasing to the eye.

Although the present application will be described with reference to the particular embodiments shown in the drawings, it should be understood that many variations of the securing assembly of the present application may be made without departing from the spirit and scope of the teachings of the present application. Those of ordinary skill in the art will also realize that there are different ways of altering the structure of the embodiments disclosed in this application that fall within the spirit and scope of the application and the claims.

Claims (11)

1. A securing assembly (100) for mounting to a mounting plate (120), comprising:

a metal bracket (102), the metal bracket (102) comprising a fixing plate (141), a shaft receiving portion (145) and a spring plate (251), the shaft receiving portion (145) and the spring plate (251) being disposed at one end (244) of the fixing plate (141), wherein the shaft receiving portion (145) has a receiving channel (261) extending in an axial direction;

a metal shaft (106), the metal shaft (106) passing through the receiving channel (261); and

a metal ring (104), the metal ring (104) being connected to the metal shaft (106) such that the metal ring (104) is rotatably connectable to the metal bracket (102) by the metal shaft (106);

wherein the spring tab (251) is configured to be elastically deformable to press against the metal shaft (106) to control rotation of the metal ring (104) relative to the metal bracket (102).

2. The securing assembly of claim 1, wherein:

the shaft receiving portion (145) and the resilient tab (251) each extend upwardly from an end (244) of the fixed plate (141) away from an upper surface (242) of the fixed plate (141), the shaft receiving portion (145) including a resilient tab receiving portion (262), the receiving channel (261) communicating with the resilient tab receiving portion (262), the resilient tab receiving portion (262) being located on a side of the shaft receiving portion (145) facing away from the upper surface (242) of the fixed plate (141), and the resilient tab receiving portion (262) extending from a top of the shaft receiving portion (145) to the end (244) of the fixed plate (141), wherein the resilient tab (251) is at least partially located in the resilient tab receiving portion (262) when elastically deformed.

3. The securing assembly of claim 2, wherein:

the shaft receiving portion (145) including a shaft receiving barrel (247) and a connecting portion (248), the shaft receiving barrel (247) defining the receiving channel (261), the connecting portion (248) connecting the shaft receiving barrel (247) to the one end (244) of the fixed plate (141), the connecting portion (248) extending from the one end (244) of the fixed plate (141) to above the fixed plate (141);

wherein the spring plate accommodating portion (262) is formed by the shaft receiving cylinder (247) and a window on the connecting portion (248).

4. A securing assembly according to claim 3, wherein:

the spring plate (251) is provided with a spring plate upper part (252) and a spring plate lower part (253), the spring plate lower part (253) is connected to the fixing plate (141), the near end (255) of the spring plate upper part (252) is connected to the spring plate lower part (253), and the far end (254) of the spring plate upper part (252) forms a free end;

wherein the shrapnel (251) is configured to: in a free state of the spring plate (251), the upper spring plate part (252) has a gap with the metal shaft (106), and when the fixing assembly (100) is installed on a mounting plate (120), the lower spring plate part (253) is subjected to acting force from the mounting plate (120), so that the spring plate (251) is elastically deformed, and the upper spring plate part (252) embraces the metal shaft (106) to control the rotation of the metal ring (104) relative to the metal bracket (102).

5. The securing assembly of claim 4, wherein:

in a free state of the spring (251), the spring lower portion (253) has a lowest point lower than a lower surface (243) of the fixing plate (141).

6. The securing assembly of claim 4, wherein:

the spring plate upper portion (252) has a curved inner surface (367) facing the metal shaft (106), the curved inner surface (367) mating with an outer surface of the metal shaft (106).

7. The securing assembly of claim 6, wherein:

the spring plate (251) comprises a bent section (256), the bent section (256) connects the upper spring plate part (252) and the lower spring plate part (253), and the bent section (256) protrudes towards the metal shaft (106).

8. The securing assembly of claim 1, wherein:

the fixing assembly (100) further comprises at least one pair of anti-rotation blocks (112), wherein the at least one pair of anti-rotation blocks (112) are formed by extending downwards from the lower surface (243) of the fixing plate (141).

9. The securing assembly of claim 1, wherein:

the two ends of the metal shaft (106) are connected with the metal ring (104) through interference fit.

10. The securing assembly of claim 1, wherein:

the fixing assembly (100) further comprises an upper cover (101) and a lower cover (103), wherein the upper cover (101) is covered on the lower cover (103);

wherein the metal bracket (102), the metal shaft (106) and the metal ring (104) are mounted to the lower cover (103), and the upper cover (101) comprises an opening (110) thereon, the opening (110) being configured to be able to receive the metal ring (104).

11. The securing assembly of claim 10, wherein:

the upper cover (101) or the lower cover (103) includes an operation part (111), and the operation part (111) forms an operation space to facilitate operation of the metal ring (104).

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