TWI679352B - Mounting device - Google Patents

Abstract

A fastening device includes a body member, a rotating shaft, and a latch hook. The rotating shaft includes a head, a shaft portion, and a riveting portion. The head portion and the riveting portion are respectively connected to opposite sides of the shaft portion. The riveting portion is riveted to the main body. The latch hook includes a handle and a hook portion. The handle is connected to the hook portion. The hook portion includes a first stop portion and a second stop portion. The first stop portion is connected to the second stop portion. The first stop portion includes a shaft hole. The latch hook is connected to the shaft portion of the rotating shaft through the shaft hole and the latch hook rotates relative to the body member. The first stop portion and the second stop portion surround a stop groove. The latch hook rotates with the shaft portion as a rotation center and abuts against a fixing pin through the stop groove.

Description

Buckle device

The invention relates to a fastening device, in particular to a fastening device in which a rotating shaft is riveted and a latch hook is rotatably connected to the rotating shaft with respect to the rotating shaft.

In computer equipment, manufacturers often set a fan in the fan tray to cool the parts in the computer case. In order to fix the fan bracket in the computer case, the manufacturer has a latch hook on the fan bracket. Most of the latch hooks are fixed with step screws, and the latch hooks can use step screws as the rotating shaft. The latch hook also has a circular arc slot. During the rotation of the latch hook, the latch hook can use the arc slot to abut against the support of the computer case, and the latch hook generates relative movement with the support through the arc slot. After the latch hook completely bears against the support through the arc groove, the fan bracket can be fixed in the computer case. When the latch hook does not rest on the support, the fan bracket can move freely in the computer case. Since the user only needs to turn the latch hook to install or remove the fan bracket, the fan bracket can achieve the function of hot plugging.

However, during the rotation of the latch hook, the step screw may be rotated together, and thus the latch hook may cause the step screw to loosen. Once the step screws are loosened, the fan bracket will also loosen inside the computer case. As a result, the fan blades of the fan bracket may not be able to face the parts exactly, so that the cooling effect of the fans on the parts is reduced. If the temperature of the component continues to rise, the component may not work properly, and the computer equipment may not function.

The invention aims to provide a fastening device, so as to solve the problem that the rotating shaft is easily driven and released by the latch hook in the prior art.

The fastening device disclosed in one embodiment of the present invention includes a body member, a rotating shaft, and a latch hook. The rotating shaft includes a head, a shaft portion, and a riveting portion. The head portion and the riveting portion are respectively connected to opposite sides of the shaft portion. The riveting portion is riveted to the main body. The latch hook includes a handle and a hook portion. The handle is connected to the hook portion. The hook portion includes a first stop portion and a second stop portion. The first stop portion is connected to the second stop portion. The first stop portion includes a shaft hole. The latch hook is connected to the shaft portion of the rotating shaft through the shaft hole and the latch hook rotates relative to the body member. The first stop portion and the second stop portion surround a stop groove. The latch hook rotates with the shaft portion as a rotation center, and abuts against a fixing pin through the stop groove.

According to the fastening device disclosed in the above embodiment, since the rotating shaft of the fastening device is riveted to the main body by the riveting portion, the rotating shaft does not loosen from the main body when the latch hook rotates. The rotating shaft is kept fixed on the main body, and the latch hook can be maintained against the fixing pin without loosening. In this way, no relative movement occurs between the body member and the fixing pin, and the position of the body member is thus fixed.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention, and provide further explanation of the scope of the patent application of the present invention.

An embodiment of the present invention will be described below. Please refer to FIG. 1 to FIG. 2 first. FIG. 1 is an exploded perspective view of a fastening device, a fixing plate, and a fixing pin according to an embodiment of the present invention. FIG. 2 is a perspective assembly diagram of the fastening device, the fixing plate, and the fixing pin of FIG. 1.

The fastening device 10 of this embodiment is, for example, a fan bracket. The fastening device 10 includes a main body 100, a rotating shaft 200 and a latch hook 300. The rotating shaft 200 includes a head 210, a shaft portion 220, and a riveting portion 230a. The head 210 and the riveting portion 230a are connected to opposite sides of the shaft portion 220, respectively. The riveting portion 230 a is riveted to the body member 100, and the rotating shaft 200 is connected to the body member 100. The latch hook 300 includes a handle 310 and a hook portion 320. The handle 310 is connected to the hook portion 320. The hook portion 320 includes a first stop portion 321 and a second stop portion 322. The first stop portion 321 is connected to the second stop portion 322. In this embodiment and some embodiments of the present invention, the hook portion 320 is connected to the handle 310 by the first stop portion 321, but is not limited thereto. In other embodiments, the hook portion may be connected to the handle with a second stop portion. In this embodiment, the first stop portion 321 includes a shaft hole 3211. The latch hook 300 is connected to the shaft portion 220 of the rotating shaft 200 through the shaft hole 3211, so that the rotating shaft 200 is located in the shaft hole 3211 of the latch hook 300. The user can use the handle 310 to rotate the latch hook 300, and the latch hook 300 rotates relative to the body member 100 through the rotating shaft 200. The first stopping portion 321 and the second stopping portion 322 surround a stopping groove 323. The latch hook 300 rotates with the shaft portion 220 as a rotation center and abuts against a fixing pin 22 on a fixing plate 20 through the stop groove 323. The fixing plate 20 is, for example, a computer case. After 22, there will be no relative movement between the fastening device 10 and the fixing pin 22, and the fastening device 10 can be fixed on the fixing plate 20.

Please refer to FIG. 3, which is a schematic side sectional view of the fastening device, the fixing plate, and the fixing pin of FIG. 2. In this embodiment and some embodiments of the present invention, since the riveting portion 230a generates a riveted convex portion 231a during the riveting process to the body member 100, the riveted convex portion 231a abuts against the body member 100 to cause riveting. The portion 230a still rotates relative to the body member 100 but does not detach from the body member 100. The rotating shaft 200 is riveted to the main body 100 through the riveting portion 230a. Even if the rotating shaft 200 is driven and rotated by the latch hook 300, it will not loosen from the main body 100, thereby ensuring that the main body 100, the rotating shaft 200, and the latch hook 300 between each other Connections are maintained, but not limited to them. Please refer to FIG. 4, which is a schematic side sectional view of a fastening device, a fixing plate and a fixing pin according to a second embodiment of the present invention. In the following, only the differences between the next embodiment of the present invention and some of the foregoing embodiments will be described, and other similarities will be omitted. In this embodiment and some embodiments of the present invention, the riveting portion 230b is fixed to the body member 100, and the riveting portion 230b does not rotate relative to the body member 100. In this way, the riveting portion 230b will not be driven and rotated by the latch hook 300, and the riveting portion 230b can be more firmly fixed to the body member 100 without being loosened from the body member 100.

Please refer to FIG. 3. In this embodiment and some embodiments of the present invention, in the radial direction of the rotating shaft 200, the area of the shaft portion 220 is larger than the area of the riveting portion 230a. In this way, one side of the shaft portion 220 near the riveting portion 230a can be abutted against the main body 100, so that the shaft 200 is not easily displaced in the axial direction relative to the main body 100, but it is not limited thereto. In other embodiments, the area of the shaft portion in the radial direction may also be equal to or smaller than the area of the riveting portion, and the relative displacement of the rotating shaft relative to the main body may be made difficult by abutting the abutting member.

Please refer to FIG. 3 and FIG. 5. 5 is a front view of a latch hook and a fixing pin of the fastening device of FIG. 1. In this embodiment and some embodiments of the present invention, the latch hook 300 further includes a locking portion 330. The locking portion 330 is connected to the hook portion 320, and the locking portion 330 is located in the shaft hole 3211 of the hook portion 320. The locking portion 330 includes a locking hole 331. The diameter width D1 of the shaft portion 220 is equal to the diameter width D2 of the locking hole 331 of the locking portion 330. The latch hook 300 can rotate relative to the shaft portion 220 through the locking portion 330, but is not limited thereto. In other embodiments, the diameter of the shaft portion may be smaller than the diameter of the lock portion, and a bearing is installed between the lock portion and the shaft portion, as long as the user can easily rotate the latch hook through the handle.

In this embodiment and some embodiments of the present invention, in the radial direction of the rotation shaft 200, the area of the head 210 is larger than the area of the shaft 220. A portion of the locking portion 330 abuts against the head 210. In this way, in the axial direction of the rotation shaft 200, the displacement of the locking portion 330 to the head 210 is restricted by the head 210. It is difficult for the latch hook 300 to move relative to the main body 100 in a direction away from the riveting portion 230a, but it is not limited thereto. In other embodiments, the area of the head may also be equal to or smaller than the area of the shaft portion, and the latch hook may be restricted from moving relative to the main body in a direction away from the riveting portion by, for example, abutting against the abutting member. .

In this embodiment and some embodiments of the present invention, the latch hook 300 abuts against the body member 100 in the axial direction of the rotating shaft 200. In this way, the displacement of the latch hook 300 to the riveting portion 230 a is restricted by the body member 100. It is not easy for the latch hook 300 to move relative to the main body 100 in the direction of the riveting portion 230a, but it is not limited thereto. In other embodiments, the latch hook can also abut against, for example, an abutment member, as long as the latch hook can be restricted from moving away from the head to cause relative displacement relative to the body member.

Please refer to FIG. 5. In this example and some embodiments of the present invention, the stop groove 323 of the latch hook 300 is in the form of a closed end at one end. That is, the first stop portion 321 includes a first end 3212. The second stopping portion 322 includes a second end 3221. The first end 3212 of the first stop portion 321 is connected to the second end 3221 of the second stop portion 322. In this way, when the user installs the stop groove 323 of the latch hook 300 on the fixing pin 22 through the handle 310, the first end 3212 of the first stop portion 321 and the second end 3221 of the second stop portion 322 may be The angle that the user is restricted from turning the handle 310 is too large to ensure that the fastening device 10 (shown in FIG. 1) is installed in an appropriate position.

In this embodiment and some embodiments of the present invention, the first stop portion 321 includes a first start end 3213. The second stopping portion 322 includes a second starting end 3222. The distance D3 between the first start end 3213 of the first stopper 321 and the second start end 3222 of the second stopper 322 is greater than the diameter D4 of the fixing pin 22. In this way, the fixing pin 22 is easier to slide between the first start end 3213 of the first stopper 321 and the second start end 3222 of the second stopper 322, and the fixation pin 22 can pass through the first stopper 321. The first start end 3213 and the second start end 3222 of the second stopper 322 are between the first end 3212 of the first stopper 321 and the second end 3221 of the second stopper 322, but not limited thereto. . In other embodiments, the distance from the first start end of the first stop to the second start end of the second stop may also be equal to the diameter of the fixed pin, and the fixed pin may reduce friction through, for example, lubricant. As long as the fixing pin can smoothly slide between the first start end of the first stopper and the second start end of the second stopper.

In this embodiment and some embodiments of the present invention, the stop groove 323 is a circular arc groove. When the user rotates the latch hook 300 through the handle 310, the latch hook 300 can slide against the fixing pin 22 through the stop groove 323. Since the stop groove 323 is an arc groove, the latch hook 300 can be more firmly disposed on the fixing pin 22 through the arc of the stop groove 323, but not limited thereto. In other embodiments, the stop groove may also be a straight groove or a curved groove, as long as the latch hook can be firmly disposed on the fixing pin through the stop groove.

In this embodiment and some embodiments of the present invention, an engaging groove S is provided between the first end 3212 of the first stop portion 321 and the second end 3221 of the second stop portion 322. That is, the first stop portion 321 includes a first stop surface 3214, and the first stop surface 3214 faces the second stop portion 322. The second stopping portion 322 includes a second stopping surface 3223a, and the second stopping surface 3223a faces the first stopping portion 321. The second stop surface 3223a includes a bump P. In this embodiment and some embodiments of the present invention, the bump P of the second stop surface 3223a is, for example, a sharp point, and the absolute value of the curvature radius of the bump P is significantly smaller than the absolute value of the curvature radius of the surrounding plane. But not limited to this. In other embodiments, the bump on the second stop surface may also be an arc-shaped bump, as long as the absolute value of the curvature radius of the bump is substantially smaller than the absolute value of the curvature radius of the surrounding plane. In this embodiment and some embodiments of the present invention, the engaging groove S is used for accommodating the fixing pin 22 by the bump P, so that the fixing pin 22 cannot be easily separated from the engaging groove S, but it is not limited thereto. Please refer to FIG. 6, which is a front view of a latch hook and a fixing pin of a fastening device according to another embodiment of the present invention. In the following, only the differences between another embodiment of the present invention and some of the foregoing embodiments will be described, and other similarities will be omitted. In this embodiment and some embodiments of the present invention, the second stop portion 322 includes a second stop surface 3223b, and the second stop surface 3223b includes a curved slope A, that is, the second stop surface 3223b It is an arc-shaped continuous plane. The latch hook 300 is disposed on the fixing pin 22 and passes through the slope of the arc slope A of the stop groove 323 without being separated from the fixing pin 22.

Please refer to FIGS. 7 to 8. FIG. 7 is an exploded perspective view of a fastening device, a fixing plate and a fixing pin according to another embodiment of the present invention. FIG. 8 is a perspective assembly diagram of the fastening device, the fixing plate, and the fixing pin of FIG. 7. In the following, only the differences between another embodiment of the present invention and some of the foregoing embodiments will be described, and other similarities will be omitted. In this embodiment and some embodiments of the present invention, the fastening device 10 further includes a screw 400 and a side plate 500, and the screw 400 is locked to the main body 100 and the side plate 500. In this way, the main body 100 will not cause relative displacement with respect to the side plate 500, but it is not limited thereto. In other embodiments, the fastening device may also be fixed on the side plate by, for example, a buckle or an adhesive. In this embodiment and some embodiments of the present invention, the side plate 500 includes a first convex portion 510, and the latch hook 300 further includes a second convex portion 340. The first convex portion 510 faces and is close to the second convex portion 340. When the fixing pin 22 is located at the first end 3212 of the first stop portion 321 and the second end 3221 of the second stop portion 322, the first convex portion 510 abuts against the second convex portion 340. In this way, the first convex portion 510 abuts against the second convex portion 340 can prevent the user from turning the handle 310 excessively, and ensure that the user does not damage the structure of the latch hook 300 or the fixing pin 22 due to excessive force, but not as limit. In other embodiments, other feedback methods, such as a sound reminder or a visual reminder, can also be used to inform the user that the rotation limit of the latch hook has been reached, so as to avoid the user from excessively turning the latch hook.

According to the fastening device of the above embodiment, since the riveting portion will produce a riveted convex portion during the riveting process to the body member, the riveted convex portion abuts against the body member so that the riveted portion still rotates relative to the body member but does not Detach from the body piece. The rotating shaft is riveted to the main body through the riveting part, and even if the rotating shaft is driven and rotated by the latch hook, it will not loosen from the main body, thereby ensuring that the connection relationship between the main body, the rotating shaft and the latch hook is maintained.

The riveting part can also be directly fixed on the body part, and the riveting part will not rotate relative to the body part. In this way, the riveting portion will not be driven and rotated by the latch hook, and the riveting portion can be more firmly fixed on the body member without being loosened from the body member.

In the radial direction of the rotating shaft, the area of the shaft portion may be larger than that of the riveting portion. In this way, one side of the shaft portion close to the riveting portion can be abutted against the body member, so that it is difficult for the rotating shaft to generate axial displacement with respect to the body member.

The latch hook further includes a locking portion, and the locking portion is connected to the hook portion and is located in the shaft hole of the hook portion. Since the diameter of the shaft portion is equal to the diameter of the locking portion, the latch hook can rotate relative to the shaft portion through the locking portion.

In the radial direction of the rotating shaft, the area of the head portion may be larger than the area of the shaft portion. A part of the locking portion abuts against the head. In this way, the displacement of the locking portion to the head is restricted by the head. The latch hook is not easy to generate relative displacement relative to the main body in a direction away from the riveting portion.

In the axial direction of the rotating shaft, the latch hook can also abut against the body member. In this way, the displacement of the latch hook toward the riveting portion is restricted by the body member. It is difficult for the latch hook to move relative to the main body in the direction of the riveting portion.

The first end of the first stop portion may also be connected to the second end of the second stop portion. That is, the stop groove of the latch hook may be in the form of a closed end. In this way, the stop groove can restrict the user from turning the handle too far, ensuring that the fastening device is installed in an appropriate position.

The distance between the first start end of the first stopper and the second start end of the second stopper may be greater than the diameter width of the fixed pin. This makes it easier for the fixing pin to slide between the first starting end of the first stopper and the second starting end of the second stopper, and the fixing pin can pass through the first start end of the first stopper and the second stop. The second start end of the stopper portion enters between the first end end of the first stopper portion and the second end end of the second stopper portion.

The stop groove can also be an arc groove, so that the latch hook can be more firmly set on the fixing pin through the arc of the stop groove.

An engaging groove may be further provided between the first end of the first stop portion and the second end of the second stop portion, that is, the second stop surface includes a bump. The engaging groove is used for accommodating the fixing pin by the bump, so that the fixing pin cannot be easily separated from the engaging groove.

The fastening device further includes a screw and a side plate, and the screw lock is attached to the main body and the side plate. In this way, the body member will not generate relative displacement relative to the side plate. The side plate further includes a first convex portion, and the latch hook further includes a second convex portion. When the user turns the handle of the latch hook excessively, the first convex portion abuts against the second convex portion, ensuring that the user does not damage the structure of the latch hook or the fixing pin due to excessive force.

Although the present invention is disclosed as above with the foregoing embodiments, it is not intended to limit the present invention. Any person skilled in similar arts can make some changes and retouch without departing from the spirit and scope of the present invention. The scope of patent protection of an invention shall be determined by the scope of patent application attached to this specification.

10‧‧‧ Fastening device

20‧‧‧Fixing plate

22‧‧‧Fixed Pin

100‧‧‧Body

200‧‧‧ shaft

210‧‧‧ Head

220‧‧‧ Shaft

230a, 230b‧‧‧ riveting

231a‧‧‧Riveted protrusion

300‧‧‧ latch hook

310‧‧‧handle

320‧‧‧ Hook

321‧‧‧first stop

3211‧‧‧Shaft hole

3212‧‧‧ first end

3213‧‧‧First beginning

3214‧‧‧First stop surface

322‧‧‧Second stop

3221‧‧‧ second end

3222‧‧‧Second Beginning

3223a, 3223b‧‧‧Second stop surface

323‧‧‧stop groove

330‧‧‧ Attachment

331‧‧‧ lock hole

340‧‧‧Second Convex

400‧‧‧screw

500‧‧‧Side panel

510‧‧‧The first convex part

D1, D2, D4‧‧‧ diameter width

D3‧‧‧distance

S‧‧‧ engagement groove

P‧‧‧ bump

A‧‧‧ curved slope

FIG. 1 is an exploded perspective view of a fastening device, a fixing plate, and a fixing pin according to an embodiment of the present invention. FIG. 2 is a perspective assembly diagram of the fastening device, the fixing plate, and the fixing pin of FIG. 1. FIG. 3 is a schematic side sectional view of the fastening device, the fixing plate, and the fixing pin of FIG. 2. FIG. 4 is a schematic side sectional view of a fastening device, a fixing plate, and a fixing pin according to a second embodiment of the present invention. 5 is a front view of a latch hook and a fixing pin of the fastening device of FIG. 1. FIG. 6 is a front view of a latch hook and a fixing pin of a fastening device according to another embodiment of the present invention. FIG. 7 is an exploded perspective view of a fastening device, a fixing plate and a fixing pin according to another embodiment of the present invention. FIG. 8 is a perspective assembly diagram of the fastening device, the fixing plate, and the fixing pin of FIG. 7.

Claims (10)

A fastening device includes: a body member; a rotating shaft including a head, a shaft portion and a riveting portion, the head and the riveting portion are respectively connected to opposite sides of the shaft portion, and the riveting portion is riveted on The body piece; and a latch hook including a handle and a hook portion connected to the hook portion, the hook portion including a first stop portion and a second stop portion, the first stop portion being connected to the A second stopper, the first stopper including a shaft hole, the latch hook being connected to the shaft part of the rotating shaft through the shaft hole and the latch hook rotating relative to the body member, the first stopper and The second stopper portion surrounds a stopper groove, and the latch hook rotates with the shaft portion as a rotation center and abuts against a fixing pin through the stopper groove. The fastening device according to item 1 of the scope of patent application, wherein the riveting portion rotates relative to the body member. The fastening device according to item 1 of the scope of patent application, wherein an area of the shaft portion in a radial direction of the rotating shaft is larger than an area of the riveting portion. The fastening device according to item 1 of the scope of patent application, wherein the latch hook further includes a locking portion connected to the hook portion, and the locking portion is located in the shaft hole of the hook portion. The diameter of the shaft portion is equal to the diameter of the locking portion. According to the fastening device described in item 4 of the scope of patent application, wherein the area of the head is larger than the area of the shaft in the radial direction of the rotating shaft, and the part of the locking portion abuts against the head. The fastening device according to item 1 of the scope of patent application, wherein the latch hook abuts against the body member. The fastening device according to item 1 of the scope of patent application, wherein the first stop portion includes a first end, the second stop portion includes a second end, and the first end of the first stop portion Connected to the second end of the second stopper. The fastening device according to item 7 of the scope of patent application, further comprising a screw and a side plate, the screw lock is attached to the main body and the side plate, the side plate includes a first protrusion, and the latch hook further includes a first Two convex parts, the first convex part faces and is close to the second convex part, when the fixing pin is located at the first end of the first stopper and the second end of the second stopper, the The first convex portion abuts against the second convex portion. The fastening device according to item 1 of the scope of patent application, wherein the first stopper includes a first start end, the second stopper includes a second start end, and the first start end of the first stopper The distance to the second starting end of the second stopper is larger than the diameter width of the fixing pin. The fastening device according to item 1 of the scope of patent application, wherein the first stop portion includes a first stop surface, the first stop surface faces the second stop portion, and the second stop portion includes A second stop surface faces the first stop portion, and the second stop surface includes a bump.