TWI649020B - Electronic device and support structure thereof - Google Patents

Abstract

A support structure is used to support an electronic device. The electronic device includes a casing. The support structure includes a ratchet, a clip, a rotating shaft, and a support. The ratchet wheel includes a plurality of ratchet teeth. A tooth valley is formed between any two adjacent ratchet teeth, and each ratchet tooth includes a tooth peak. The card firmware includes a card-fixing piece, a card-fixing lever body, and a card-fixing torsion spring. The fixing piece is used for fixing any tooth valley on the ratchet. The clip body is connected to the clip. The fastening member torsion spring is connected to the housing and the fastening member lever body. The fastening member torsion spring is used to provide a first torsion force to drive the fastening member to rotate along a first rotation direction. The rotating shaft is pivotally connected to the housing and includes a shaft body and a rotating shaft torsion spring. The shaft is connected to the ratchet. The shaft torsion spring is connected to the shaft body. The support is connected to the rotating shaft, and is pivotally connected to the housing through the rotating shaft.

Description

Electronic device and supporting structure thereof

The invention relates to a supporting structure, in particular to a supporting structure with small volume, which can be easily operated by a user, and stably supports an electronic device.

A tablet computer is a small, portable computer that has a touch screen for users to operate and view pictures, and has a thin and light volume for users to carry, so tablet computers are popular with consumers. When a user watches the touch screen of a tablet computer, the user tends to stand the tablet computer according to his or her usual usage habits of watching TV pictures; therefore, in order to match the user's usage habits, computer manufacturers have also designed Tablet computer with support. The tablet computer has a casing and a support frame, the support frame is pivotally connected to the bottom of the casing, and the support frame is pivotally connected to the casing by using a pivot-type or clip-type pivot structure; The bag-type or clip-type pivot structure can generate a huge friction force at the pivot joint of the support frame and the casing, and the friction force can ensure that the angle of the support frame relative to the casing is kept stable. In this way, The supporting frame can be opened to a stable angle relative to the casing without falling down, so that the tablet computer can stand smoothly.

However, in order to generate sufficient friction, the volume of the pivot-type or clip-type pivot structure must be designed to be quite large, so that the appearance of the tablet computer becomes thick. In addition, when the user opens the support frame relative to the casing, the user must also exert considerable effort to pull the support frame, so as to offset the huge frictional force on the pivot joint of the support frame and the casing, so that the support frame is relatively The housing is open; the force exerted by the user on the support frame may also deform the support frame. In addition, when the user presses the touch screen of the upright tablet computer with a finger, the force exerted by the finger slightly offsets the frictional force, causing the tablet computer to shake.

Therefore, it is necessary to provide a new support structure with a small specific volume, which can be easily operated by the user, and supports the tablet computer stably.

The main purpose of the present invention is to provide a supporting structure which is small in size, can be easily operated by a user, and stably supports an electronic device.

To achieve the above object, a supporting structure of the present invention is used to support an electronic device. The electronic device includes a casing. The support structure includes a ratchet, a clip, a rotating shaft, and a support. The ratchet wheel includes a plurality of ratchet teeth. A tooth valley is formed between any two adjacent ratchet teeth. Each ratchet tooth includes a tooth peak. Each tooth valley and each tooth peak are staggered to form a sawtooth moving surface. The card firmware includes a card-fixing piece, a card-fixing lever body, and a card-fixing torsion spring. The fixing piece is used for fixing any tooth valley on the ratchet. The clip body is connected to the clip. The fastening member torsion spring is connected to the housing and the fastening member lever body. The fastening member torsion spring is used to provide a first torsion force to drive the fastening member to rotate along a first rotation direction. The rotating shaft is pivotally connected to the casing. The rotating shaft includes a shaft body and a rotating shaft torsion spring. The shaft is connected to the ratchet. The shaft torsion spring is connected to the shaft body. The shaft torsion spring is used to provide a second torsion force to drive the shaft body to rotate in a second rotation direction, and to drive a ratchet wheel connected to the shaft body to rotate together in the second rotation direction. The support is connected to the rotating shaft, and is pivotally connected to the housing through the rotating shaft. During the rotation of the housing to an angle with respect to the support, the clamping piece moves back and forth along the zigzag moving surface. When the housing rotates to this angle relative to the support, the fixing lever rod drives the fixing piece to rotate to one of the tooth valleys, so that the fixing piece locks one of the tooth valleys, so that between the housing and the support The angle is fixed to support the electronic device.

According to an embodiment of the present invention, each ratchet tooth includes a plane and a curved surface; a top end of each plane of the ratchet teeth and a top end of the curved surface are connected to form a tooth peak; and a bottom end of each ratchet tooth plane It is connected with the bottom end of one of the adjacent arc surfaces of another ratchet tooth to form a tooth valley.

According to an embodiment of the present invention, the first rotation direction is opposite to the second rotation direction.

According to an embodiment of the present invention, when the fixing piece is rotated to be located in one of the tooth valleys and the fixing piece touches a plane beside the tooth valley, the fixing sheet is locked in the one tooth valley and cannot continue along the tooth valley. It rotates in the first rotation direction, and the plane is also blocked by the retaining piece, so that the ratchet cannot continue to rotate in the second rotation direction.

According to an embodiment of the present invention, the supporting structure further includes an unlocking member. The unlocking member includes a pressing portion and a push rod. The push rod is connected to the pressing portion and touches the fixing piece. When the push rod moves along a pushing direction, it is pushed. When the clip is fixed, the clip will be moved away from the ratchet.

According to an embodiment of the present invention, the unlocking member further includes a connecting rod and an elastic body; the connecting rod is connected to the pressing portion, and the elastic body is connected to the connecting rod.

According to an embodiment of the present invention, the elastic body is configured to provide an elastic force to the connecting rod to drive the connecting rod to move in a direction opposite to the pushing direction.

According to an embodiment of the present invention, the pressing portion is provided on the casing and is exposed to the outside.

According to an embodiment of the present invention, the fixing piece further includes an inclined surface; when the fixing piece rotates to be located in the one of the tooth valleys, and the inclined surface of the fixing piece touches and conforms to a plane beside the one of the tooth valleys; , The fixing piece is fixed on one of the tooth valleys.

Another main object of the present invention is to provide an electronic device having a supporting structure with a small volume, which can be easily operated by a user, and stably supports the electronic device.

To achieve the above object, the electronic device of the present invention includes a casing and a support structure. The support structure includes a ratchet, a clip, a rotating shaft, and a support. The ratchet wheel includes a plurality of ratchet teeth. A tooth valley is formed between any two adjacent ratchet teeth. Each ratchet tooth includes a tooth peak. Each tooth valley and each tooth peak are staggered to form a sawtooth moving surface. The card firmware includes a card-fixing piece, a card-fixing lever body, and a card-fixing torsion spring. The fixing piece is used for fixing any tooth valley on the ratchet. The clip body is connected to the clip. The fastening member torsion spring is connected to the housing and the fastening member lever body. The fastening member torsion spring is used to provide a first torsion force to drive the fastening member to rotate along a first rotation direction. The rotating shaft is pivotally connected to the casing. The rotating shaft includes a shaft body and a rotating shaft torsion spring. The shaft is connected to the ratchet. The shaft torsion spring is connected to the shaft body. The shaft torsion spring is used to provide a second torsion force to drive the shaft body to rotate in a second rotation direction, and to drive a ratchet wheel connected to the shaft body to rotate together in the second rotation direction. The support is connected to the rotating shaft, and is pivotally connected to the housing through the rotating shaft. During the rotation of the housing to an angle with respect to the support, the clamping piece moves back and forth along the sawtooth-type moving surface. When the housing rotates to this angle relative to the support, the fixing lever rod drives the fixing piece to rotate to one of the tooth valleys, so that the fixing piece locks one of the tooth valleys, so that between the housing and the support This angle is fixed to support the electronic device.

In order to make your reviewing committee better understand the technical content of the present invention, specific preferred embodiments are described below.

Please refer to FIGS. 1 to 8 together for an electronic device and a supporting structure thereof according to an embodiment of the present invention. FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a supporting structure of an electronic device according to an embodiment of the present invention; and FIG. 3 is a rotating shaft, a ratchet, a fastener, and An exploded perspective view of an unlocking member; FIG. 4 is a partial side view of a ratchet according to an embodiment of the present invention; FIG. 5 is a partial side view of a ratchet and a ratchet according to an embodiment of the present invention; and FIG. 6 is an implementation of the present invention A schematic view of an example of a rotating shaft, a ratchet wheel, a fastener and an unlocking member; FIG. 7 is a schematic view of an unlocking member and a rotating shaft, a ratchet, and a fastener according to an embodiment of the present invention; FIG. 8 is an implementation of the present invention For example, a side view of an unlocking member and a rotating shaft, a ratchet, and a fastener moving along a pushing direction.

As shown in FIG. 1 to FIG. 3, in an embodiment of the present invention, the electronic device 100 is, for example, a tablet computer. The electronic device 100 includes a casing 110, a screen 120 and a supporting structure 1. The casing 110 is a casing of the electronic device 100 to protect internal components. The casing 110 includes a casing edge 111 and an inner casing 112. The inner casing 112 is an inner casing of the electronic device 100 for receiving and placing internal components. The inner casing 112 of the present invention forms a receiving space around the supporting structure 1 to receive the supporting structure 1. The screen 120 is located in the housing 110 and is used by a user to view a picture and perform touch.

In one embodiment of the present invention, the support structure 1 is small in size and does not excessively occupy the space of the inner casing 112 of the electronic device 100, which can be easily operated by the user, and the support structure 1 can be rotated and expanded relative to the casing 110. ON to securely support the electronic device 100. The supporting structure 1 of the present invention is located at the edge 111 of the casing and is located in the inner casing 112, and some elements of the supporting structure 1 are connected to the wall surface of the inner casing 112. The supporting structure 1 includes a supporting member 10, a rotating shaft 40, a ratchet 30, a fastener 20, and an unlocking member 50.

In one embodiment of the present invention, the supporting member 10 is a rectangular thin plate connected to the rotating shaft 40 and pivotally connected to the housing edge 111 of the housing 110 through the rotating shaft 40. By pivoting the rotating shaft 40, the housing 110 can rotate relative to the support member 10. When the housing 110 is rotated close to the supporting member 10 in the rotation direction X, the overall appearance of the electronic device 100 is an ordinary tablet computer; when the housing 110 is rotated in the opposite direction to the supporting member 10 in the rotating direction X When the opening angle is 10, the supporting member 10 can be used as a base to support the housing 110 to make the electronic device 100 stand up.

As shown in FIG. 1 to FIG. 3 and FIG. 5, in one embodiment of the present invention, the fixing member 20 is used for fixing with the ratchet wheel 30 so as to keep the opening angle of the supporting member 10 relative to the housing 110 stable. The fixing member 20 includes a fixing piece 21, a fixing piece 22 and a fixing piece torsion spring 23. The fixing piece 21 is used for fixing the ratchet wheel 30. The fixing piece 21 includes an inclined surface 211. The fixing member body 22 is connected to the fixing piece 21. The fastener torsion spring 23 is connected to the inner shell 112 of the casing 110 and the fastener lever body 22. The fastener torsion spring 23 is used to provide a first torsion force to drive the fastener lever 22 to rotate along a first rotation direction A. The rotating locking member body 22 will drive the locking piece 21 to rotate to the locking ratchet 30. In one embodiment of the present invention, the fastener torsion spring 23 is sleeved with the fastener lever 22. When the fastener 21 is rotated by the force in the opposite first rotation direction A, the fastener torsion spring 23 is received in the opposite direction. The bending stress can store energy and generate a first torsion.

In one embodiment of the present invention, one end of the rotating shaft 40 is pivotally connected to the housing 110, and the other end of the rotating shaft 40 is connected to the supporting member 10. The rotating shaft 40 includes a shaft body 41 and a rotating shaft torsion spring 42. The shaft 41 is connected to the ratchet 30. The shaft torsion spring 42 is connected to the shaft body 41. The shaft torsion spring 42 is used to provide a second torsion force to drive the shaft body 41 to rotate in a second rotation direction B, and to drive the ratchet wheel 30 connected to the shaft body 41 along the first Two rotation directions B rotation. The first rotation direction A is opposite to the second rotation direction B. In an embodiment of the present invention, the shaft torsion spring 42 is sleeved with the shaft body 41. When the shaft 41 is rotated by the force in the opposite second rotation direction B, the shaft torsion spring 42 may be subjected to a bending stress in the opposite direction. Stores energy and generates a second torque.

In an embodiment of the present invention, as shown in FIGS. 3 to 5, the ratchet wheel 30 is connected to the shaft body 41. The ratchet wheel 30 includes a plurality of ratchet teeth 31. Each ratchet tooth 31 includes a flat surface 311, an arc surface 312 and a tooth peak 314. The top of one of the flat surfaces 311 and the top of one of the curved surfaces 312 of each ratchet tooth 31 are connected to form the tooth peak 314. The bottom end of one of the planes 311 of each ratchet tooth 31 is connected to the bottom end of one of the arc faces 312 of the adjacent another ratchet tooth 31 to form a tooth valley 313; the tooth valley 313 is used to hold and rotate along the first rotation direction A的 卡 固 片 21. Each tooth valley 313 and each tooth peak 314 are staggered to form a sawtooth-type moving surface.

As shown in FIG. 3, FIG. 5, and FIG. 6, when the ratchet wheel 30 rotates in the opposite second rotation direction B, the curved surface 312 of the ratchet tooth 31 lifts the fixing piece 21 so that the fixing piece 21 leaves the valley 313. And drive the fastener lever rod 222 to rotate in the opposite first rotation direction A, and cause the fastener torsion spring 23 to generate a first torsion, and the first torque generated by the fastener torsion spring 23 causes the fastener lever 22 to rotate along the first Rotation in the direction A; when the ratchet wheel 30 is no longer rotating in the opposite second rotation direction B, the second torsion provided by the torsion spring 42 of the shaft starts to rotate the ratchet wheel 30 in the second rotation direction B, and the latch lever 222 moves along the first One rotation direction A rotates, and one of the tooth valleys 313 of the ratchet wheel 30 rotating in the second rotation direction B will be fixed with the fixing piece 21. Further, the fixing piece 21 touches the tooth shape 313 next to the tooth shape 313. In the plane 311, the fixing piece 21 will be trapped in the tooth valley 313 and locked in the tooth valley 313. Therefore, the fixing piece 21 cannot continue to rotate in the first rotation direction A. In addition, if the fixing piece 21 touches the fixing piece 21, The flat surface 311 and the slanted surface 211 of the fixing piece 21 also adhere to each other, and the slanted surface 211 of the fixing piece 21 that is fixed to the valley 313 abuts against. , So that the ratchet 30 can not continue to rotate in the second rotational direction B, so that even if the trim piece 21 to give 30 and fastened to the ratchet tooth trough 313.

In one embodiment of the present invention, as shown in FIG. 3, FIG. 6 to FIG. 8, the unlocking member 50 is used to release the latching between the latching piece 21 and the ratchet 30 of the latching member 20. The unlocking member 50 includes a pressing portion 51, a push rod 52, a connecting rod 53, and an elastic body 54. The pressing portion 51 is a button provided on the casing 110 and exposed to the outside, so that the user can press and move the pressing portion 51 along a pushing direction C. The push rod 52 is connected to the pressing portion 51 and touches the fixing piece 21. When the push rod 52 is moved along the pushing direction C by being driven by the pressing portion 51, the push rod 52 will push the locking piece 21, and the push rod 52 will also move the locking piece 21 away from the ratchet wheel 30. In this way, The locking piece 21 is released from the valley 313 and released from the ratchet 30. The connecting rod 53 is connected to the pressing portion 51. The elastic body 54 is, for example, a spring, and the elastic body 54 connects the connecting rod 53 and the inner casing 112. The elastic body 54 is used to provide an elastic force to the connecting rod 53 to drive the connecting rod 53 to move in a direction opposite to the pushing direction C.

The user can operate the support structure 1 of the present invention to open or close the support structure 1 relative to the casing 110 so that the electronic device 100 as a whole is in an L-shaped upright state or a tablet computer. When the user needs to use the supporting structure 1 of the present invention to support the electronic device 100, as shown in FIGS. 1 and 2, the user can apply force to the supporting member 10 by hand, so that the housing 110 is opposite to the supporting member 10 and along the supporting member 10. Rotate in the opposite direction of the rotation direction X and open to an angle. As shown in FIG. 1, FIG. 3, and FIG. 5, during the process in which the housing 110 is opened to the angle relative to the support member 10 and rotated in the direction opposite to the rotation direction X, the support member 10 and the rotation shaft 40 The connection between the rotating shaft 40 and the ratchet wheel 30 connected to the rotating shaft 40 rotates together. Therefore, the ratchet wheel 30 is rotated relative to the fastener 20 in a direction opposite to the second rotation direction B. During the rotation of the ratchet wheel 30 relative to the fastener 20 in the opposite direction of the second rotation direction B, the retaining piece 21 slides upward along the curved outer surface of the arc surface 312, that is, it slides toward the tooth peak 314 ; When the fixing piece 21 slides along the arc-shaped outer surface of the arc surface 312 to exceed the tooth peak 314, the fixing piece 21 will be affected by the torsion of the torsion spring 23 to rotate along the first rotation direction A and fall. Into the adjacent tooth valley 313, and then, the retaining piece 21 will continue to slide along the curved outer surface of the adjacent arc surface 312, so the retaining piece 21 will follow the tooth valley 313 and the tooth peak 314. The zigzag moving surface performs reciprocating movement; that is, the design of the curved outer surface of the arc surface 312 allows the ratchet wheel 30 to rotate smoothly relative to the fastener 20 in the opposite direction of the second rotation direction B. The ratchet wheel During the rotation of 30, the fixing piece 21 will not be blocked by the plane 311 and the ratchet wheel 30 and the fixing member 20 will be caught by each other. In this way, the user can smoothly rotate the casing 110 in a direction opposite to the rotation direction X to a specific angle according to personal needs.

After the user rotates the housing 110 in a specific angle in the direction opposite to the rotation direction X, the user can stop exerting force on the support 10. At this time, if the fixing piece 21 is located in one of the valleys 313, Then, the fastener torsion spring 23 will provide the first torsion force to drive the fastener lever 22 to rotate in the first rotation direction A, so that the fixing piece 21 is trapped in one of the tooth valleys 313, so that the fixing piece 21 cannot continue along the Sliding on the adjacent arc surface 312; on the other hand, the inclined surface 211 of the fixing piece 21 located in one of the tooth valleys 313 will also be attached to the plane 311 beside the tooth valley 313, so that it touches the fixing piece 21 The plane 311 of the slanted surface 211 is blocked by the slanted surface 211 of the fixing piece 21 fixed to the valley 313, so that the ratchet wheel 30 cannot continue to rotate in the second rotation direction B. In this way, the fixing member 20 can be made. The locking piece 21 and the valley 313 of the ratchet wheel 30 are locked. In addition, if the user stops applying force to the support 10 and the fixing piece 21 is located on the curved outer surface of the curved surface 312, the rotating shaft torsion spring 42 will drive the shaft body 41 and the ratchet wheel 30 along the second rotation direction. B rotates, the clamping piece 21 is relatively moved along the curved surface 312 to the tooth valley 313 beside the curved surface 312, so that the clamping piece 21 of the fastener 20 and the tooth valley 313 of the ratchet 30 are locked. The locking between the fastener 20 and the ratchet 30 prevents the housing 110 from continuing to rotate in the opposite direction of the rotation direction X, so that the included angle between the support 10 and the housing 110 can be kept fixed; The user can use the support 10 as a base to make the housing 110 stand upright, so that the electronic device 100 as a whole is in an L-shaped upright state, so that the user can view the screen 120.

When the user needs to change the upright electronic device 100 which is L-shaped as a whole to a tablet computer, as shown in FIG. 2, FIG. 6 to FIG. 8, the user can press the finger provided on the housing 110. The pressing portion 51 moves the pressing portion 51 in the pushing direction C. When the push rod 52 is moved along the pushing direction C by being driven by the pressing portion 51, the push rod 52 will push the locking piece 21, and the push rod 52 will also move the locking piece 21 away from the ratchet wheel 30. In this way, The locking piece 21 is released from the valley 313 and released from the ratchet 30. At this time, the user can apply force to the supporting member 10 or the casing 110 to bring the supporting member 10 and the casing 110 together, so that the electronic device 100 is in the state of a tablet computer. When the electronic device 100 is in the form of a tablet computer, the user no longer needs to press the pressing portion 51 with his fingers; when the pressing portion 51 no longer receives the force applied by the user, the elastic body 54 provides the connecting rod 53 The elastic force will drive the connecting rod 53 to move in the opposite direction of the pushing direction C, so that the fixing piece 21 contacts the ratchet 30 again, so that when the user opens the housing 110 in the direction opposite to the rotation direction X and rotates relative to the support 10 to open , So that the ratchets 30 can be fixed to each other at any time.

With the design of the electronic device 100 and the supporting structure 1 of the present invention, the supporting member 10 can stably support the casing 110 through the fixing between the ratchet teeth 31 of the ratchet 30 and the fixing pieces 21 of the fixing member 20. . Since the ratchet wheel 30 and the fixing member 20 are fixed to each other through a hardware structure, and not through the friction of the conventional technology, the overall volume of the supporting structure 1 can be designed to be relatively small and not occupy the space of the electronic device 100 excessively. And the user can easily operate the supporting structure 1 without applying excessive force, so that the supporting structure 1 rotates and expands relative to the casing 110 to stably support the casing 110, or rotates and closes relative to the casing 110 so that The electronic device 100 appears as a tablet computer.

It should be noted that the above are merely examples, and are not limited to the examples. For example, those who do not depart from the basic structure of the present invention should all be within the scope of the rights claimed by the patent, and the scope of the patent application shall prevail.

1‧‧‧ support structure

10‧‧‧ support

20‧‧‧ Card Firmware

21‧‧‧Fixed tablets

211‧‧‧ bevel

22‧‧‧Firmware lever body

23‧‧‧Firmware Torsion Spring

30‧‧‧ Ratchet

31‧‧‧ Ratchet

311‧‧‧plane

312‧‧‧arc surface

313‧‧‧Tooth Valley

314‧‧‧tooth peak

40‧‧‧ shaft

41‧‧‧ Shaft

42‧‧‧rotating shaft torsion spring

50‧‧‧Unlocked

51‧‧‧Pressing section

52‧‧‧Put

53‧‧‧Connecting rod

54‧‧‧ Elastomer

100‧‧‧ electronic device

110‧‧‧shell

111‧‧‧shell edge

112‧‧‧Inner shell

120‧‧‧Screen

A‧‧‧First rotation direction

B‧‧‧Second rotation direction

C‧‧‧ direction

X‧‧‧ rotation direction

FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a supporting structure of an electronic device according to an embodiment of the present invention. FIG. 3 is an exploded perspective view of a rotating shaft, a ratchet, a fastener and an unlocking member according to an embodiment of the present invention. FIG. 4 is a partial side view of a ratchet wheel according to an embodiment of the present invention. FIG. 5 is a partial side view of a fastener and a ratchet according to an embodiment of the present invention. FIG. 6 is a schematic diagram of a rotating shaft, a ratchet, a fastener and an unlocking member according to an embodiment of the present invention. FIG. 7 is a schematic diagram of an unlocking member and a rotating shaft, a ratchet wheel, and a locking member moving along a pushing direction according to an embodiment of the present invention. FIG. 8 is a side view of an unlocking member and a rotating shaft, a ratchet wheel, and a locking member moving along a pushing direction according to an embodiment of the present invention.

Claims (16)

A support structure is used to support an electronic device. The electronic device includes a housing. The support structure includes a ratchet wheel including a plurality of ratchet teeth. A tooth valley is formed between any two adjacent ratchet teeth. Each ratchet tooth includes A tooth peak, each tooth valley and each tooth peak are staggered to form a sawtooth-type moving surface, wherein each ratchet tooth includes a plane and an arc surface; one tip of the plane of the ratchet tooth and one tip of the arc surface Connected to form the tooth peak; the bottom end of one plane of each ratchet tooth is connected to the bottom end of one arc face of another ratchet tooth to form the tooth valley; a fastener, including: a clamp A clip for fixing any tooth valley on the ratchet wheel; a clip fastener rod body connected to the clip piece; and a clip fastener torsion spring connecting the housing and the clip fastener rod body, the clip fastener torsion spring It is used to provide a first torsion force to drive the lever body to rotate along a first rotation direction; a rotating shaft is pivotally connected to the housing, the rotating shaft comprises: a shaft body connected to the ratchet; and a rotating shaft torsion spring, the The shaft torsion spring is connected to the shaft body, and the shaft torsion spring is used to provide A second torque to drive the shaft body to rotate along a second rotation direction, and to drive the ratchet wheel connected to the shaft body to rotate together in the second rotation direction; and a support member connected to the shaft, and by The rotating shaft is pivotally connected to the housing; wherein during the rotation of the housing to an angle relative to the support, the retaining piece moves back and forth along the sawtooth moving surface; wherein when the housing When rotating to the angle with respect to the support, the fixing lever rod drives the fixing piece to rotate to one of the tooth valleys, so that the fixing piece fixes one of the tooth valleys, so that the housing and the The angle between the support members is fixed to support the electronic device. The support structure according to item 1 of the scope of patent application, wherein the first rotation direction is opposite to the second rotation direction. The support structure according to item 2 of the scope of patent application, wherein when the retaining sheet is rotated to be located in one of the tooth valleys, and the retaining sheet touches the plane beside the tooth valley, the retaining sheet card It is fixed to one of the tooth valleys and cannot continue to rotate in the first rotation direction, and the plane is also blocked by the retaining piece so that the ratchet wheel cannot continue to rotate in the second rotation direction. The support structure according to item 3 of the scope of patent application, further comprising an unlocking member, the unlocking member includes a pressing portion and a push rod, the push rod is connected to the pressing portion and touches the fixing piece; when the push rod When the fixing piece is pushed along a pushing direction, the fixing piece is driven to move away from the ratchet. The supporting structure according to item 4 of the scope of patent application, wherein the unlocking member further includes a connecting rod and an elastic body; the connecting rod is connected to the pressing portion, and the elastic body is connected to the connecting rod. The supporting structure according to item 5 of the scope of patent application, wherein the elastic body is used to provide an elastic force to the connecting rod to drive the connecting rod to move in a direction opposite to the pushing direction. The supporting structure according to item 6 of the patent application scope, wherein the pressing portion is provided on the casing and is exposed to the outside. The supporting structure according to item 7 of the scope of patent application, wherein the fixing piece further includes an inclined surface; when the fixing piece rotates to be located in one of the tooth valleys, and the inclined surface of the fixing piece touches and fits When the plane next to one of the tooth valleys, the fixing piece is fixed to the one of the tooth valleys. An electronic device includes: a housing; and a supporting structure including: a ratchet wheel including a plurality of ratchet teeth, a tooth valley formed between any two adjacent ratchet teeth, each ratchet tooth including a tooth peak, and each tooth valley And staggered with each tooth peak to form a sawtooth-type moving surface, wherein each ratchet tooth includes a plane and an arc surface; a tip of the plane of each ratchet tooth and a tip of the arc surface are connected to form the tooth peak; A bottom end of one of the planes of each ratchet tooth is connected to a bottom end of one of the arc faces of another ratchet tooth to form the valley of the tooth; a fastener includes: a fixing piece for fixing the tooth Any tooth valley on the ratchet wheel; a clip lever body connected to the clip; and a clip torsion spring connected to the housing and the clip lever, the clip torsion spring is used to provide a first torque The lever body is driven to rotate along a first direction of rotation; a shaft is pivotally connected to the housing, and the shaft includes: a shaft body connected to the ratchet; and a shaft torsion spring connected to the shaft body The shaft torsion spring is used to provide a second torsion to drive the shaft Rotating along a second rotation direction and driving the ratchet wheel connected to the shaft body to rotate along the second rotation direction; and a support member connected to the rotation shaft and pivotally connected to the housing through the rotation shaft; During the rotation of the housing to an angle with respect to the support, the retaining piece moves reciprocally along the sawtooth moving surface; wherein when the housing rotates to the support relative to the support In the case of an angle, the fixing rod drives the fixing piece to rotate to one of the tooth valleys, so that the fixing piece fixes one of the tooth valleys, so that the angle between the housing and the support is fixed and Support the electronic device. The electronic device according to item 9 of the application, wherein the first rotation direction is opposite to the second rotation direction. The electronic device according to item 10 of the scope of patent application, wherein when the fixing piece is rotated to be located in one of the tooth valleys, and the fixing piece touches the plane beside the tooth valley, the fixing piece card It is fixed to one of the tooth valleys and cannot continue to rotate in the first rotation direction, and the plane is also blocked by the retaining piece so that the ratchet wheel cannot continue to rotate in the second rotation direction. The electronic device according to item 11 of the scope of patent application, wherein the supporting structure further includes an unlocking member, the unlocking member includes a pressing portion and a push rod, the push rod is connected to the pressing portion and touches the fixing piece; When the push rod moves along a pushing direction to push the fixing piece, the fixing piece will be driven to move away from the ratchet. The electronic device according to item 12 of the patent application scope, wherein the unlocking member further includes a connecting rod and an elastic body; the connecting rod is connected to the pressing portion, and the elastic body is connected to the connecting rod. The electronic device according to item 13 of the application, wherein the elastic body is used to provide an elastic force to the connecting rod to drive the connecting rod to move in a direction opposite to the pushing direction. The electronic device according to item 14 of the scope of patent application, wherein the pressing portion is disposed on the casing and is exposed to the outside. The electronic device according to item 15 of the scope of patent application, wherein the fixing piece further includes a slope; when the fixing piece rotates to be located in one of the tooth valleys, and the slope of the fixing piece touches and fits When the plane next to one of the tooth valleys, the fixing piece is fixed to the one of the tooth valleys.