TWI423675B - Supporting device - Google Patents

Description

Support device

The invention relates to a lifting mechanism.

The present invention relates to a support device, and more particularly to a support device for supporting a display screen.

In recent years, flat panel displays such as liquid crystal displays and plasma displays have been widely used for display main bodies of personal computers and televisions. In order to reduce the packaging volume, it is also convenient to mount the display on a wall or on a table. The display screen and the support base of such a display are usually designed as a separate structure.

Referring to FIG. 1 , a display 10 includes a display screen 11 , a support base 12 , a sliding mechanism 13 , and a positioning mechanism 14 . The back surface 112 of the display screen 11 has a first mounting portion 114, and the top end of the support base 12 has a second mounting portion 122. The sliding mechanism 13 includes a pair of sliding slots 132 and a pair of sliders 134. The sliding slots 132 are disposed on the first mounting portion 114, and the slider 134 is disposed on the second mounting portion 122. The positioning mechanism 14 includes a resilient block 142 and a limit opening 144. The elastic block 142 is disposed in a recess (not shown) of the back surface 112 of the display screen 11 and is movable back and forth within the recess. The limiting opening 144 is disposed on the second mounting portion 122 of the support base 12 . The elastic blocking block 142 can be engaged with the limiting opening 144 to block the relative sliding between the first mounting portion 114 and the second mounting portion 122 .

When the display screen 11 needs to be mounted to the support base 12, pressure is first applied to the elastic block 142, so that the elastic block 142 completely enters the groove, and then the second mounting portion 122 of the support base 12 passes through the chute 132 and slides. Block 134 is embedded in first mounting portion 114 of display screen 10. When the limiting opening 144 on the second mounting portion 122 just moves above the elastic block 142, the elastic block 142 is snapped into the limiting opening 144 by the resilience force, thereby the display screen 11 and the supporting base. 12 fixed. When the display 10 needs to be disassembled, pressure is also applied to the elastic block 142 to allow the elastic block 142 to enter the groove without restricting the opening 144. Thus, the second mounting portion 122 of the support base 12 can be The first mounting portion 114 of the display screen 11 is separated.

However, since the entire weight of the display 10 is entirely supported by the elastic block 142 that is snapped into the limit opening 144, during the process of disassembling the display 10, a large pressure is applied to the elastic block 142 to overcome the limit. The large friction between the element opening 144 and the elastic block 142 is inconvenient. On the other hand, since the friction between the elastic block 142 and the limiting opening 144 is large, the elastic block 142 may be worn after being repeatedly assembled and disassembled, so that the service life of the supporting device of the display 10 is not high.

In view of this, it is necessary to provide a support device that is more convenient to disassemble and has a higher service life.

A support device includes a support body and a connector connected to the supported object. The support body is provided with a mounting hole for receiving the connector and a locking mechanism for cooperating with the mounting hole. The insertion member can insert or pull out the mounting hole in the first direction, and the locking mechanism includes a limiting member, an active member, a driven member and an elastic member, the driven member is disposed in a second direction intersecting with the first direction Telescopic studs. The limiting member has a guiding portion, and the first member of the active member is provided a ratchet tooth and movable relative to the limiting member in the second direction, the second ratchet tooth is disposed on the driven member, and is movable relative to the limiting member in the second direction, and is also relatively opposite to the limiting member under the action of the guiding portion Rotating, the elastic member is for biasing the follower in the second direction to engage the first ratchet teeth with the second ratchet teeth. A locking hole for accommodating the stud is opened on the connector. When the connector is received in the mounting hole, the locking mechanism drives the stud into the locking hole to restrict the connector from being disengaged from the mounting hole in the first direction. After the supporting device is used, the weight of the supported object is mainly supported by the mounting hole and the connector, and the relative force between the protruding post and the locking hole is small, so that it is relatively convenient and convenient to adjust the position of the protruding post. Moreover, since the protrusions are less frictional to each other when moving in the locking holes of the connector, the brackets have a higher service life.

100‧‧‧Support device

21‧‧‧Installation holes

231‧‧‧ accommodating holes

235‧‧ ‧neck

41‧‧‧ Positioning Department

51‧‧‧ button

521‧‧‧Steps

523‧‧‧First ratchet teeth

531‧‧‧Bump

5331‧‧‧Second ratchet teeth

5335‧‧‧First bevel

541‧‧‧ Subject

545‧‧‧through holes

5461‧‧‧First guiding slot

5463‧‧‧First guiding bulge

5465‧‧‧Second guiding slot

5467‧‧‧Second guiding bulge

55‧‧‧Flexible parts

60‧‧‧Connectors

63‧‧‧Connecting parts

67‧‧‧Hinges

82‧‧‧ second housing

20‧‧‧Support subject

23‧‧‧Installation slot

233‧‧‧Threaded holes

40‧‧‧Base

50‧‧‧Locking mechanism

52‧‧‧Active parts

5211‧‧‧First guide column

53‧‧‧ Driven followers

533‧‧‧Flange

5333‧‧‧Second guide post

54‧‧‧Limited parts

543‧‧‧Connecting Department

546‧‧‧Guidance Department

5462‧‧‧Second slope

5464‧‧‧stops

5466‧‧‧3rd slope

547‧‧‧through hole

56‧‧‧ screws

61‧‧‧Interface

65‧‧‧Lock hole

81‧‧‧First housing

Figure 1 is an exploded view of a support device.

2 is an assembled view of a support device according to an embodiment of the present invention.

Figure 3 is an exploded view of the support device of Figure 2.

Figure 4 is an exploded view of the slider and locking mechanism of Figure 3.

Figure 5 is a bottom plan view of the limit block shown in Figure 4.

Figure 6 is a cross-sectional view of the limit block shown in Figure 4.

7 to 13 are schematic diagrams showing the cooperation relationship between the active member, the driven member and the limiting block shown in FIG.

Figure 14 is a cross-sectional view taken along line A-A of Figure 2.

Figure 15 is a cross-sectional view showing another state of Figure 14.

The supporting device of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

Embodiments of the present invention disclose a support device for supporting an electronic device with a display screen. In the present embodiment, a support device applied to a liquid crystal display will be described as an example.

Please refer to Figure 2 and Figure 3 together. The support device 100 of the embodiment of the present invention includes a support body 20 and a base 40 connected to the support body 20, a locking mechanism 50, a connector 60, a first housing 81 and a second housing 82.

The support body 20 is substantially columnar, and a side wall has a mounting hole 21 extending in the first direction. In the present embodiment, the first direction is a horizontal direction. The base 40 is substantially disk-shaped, and a positioning portion 41 is provided on the surface thereof. The support body 20 is fixed to the base 40 by the positioning portion 41. When the lower portion of the support body 20 is designed to have a wider shape, the base 40 can also be omitted. The locking mechanism 50 is disposed at the top of the support body 20. The connector 60 is substantially in the form of a long block including a plug portion 61, a connector 63, a locking hole 65 and a hinge 67. The insertion portion 61 is partially inserted into the mounting hole 21 of the support body 20. The locking hole 65 is opened on the insertion portion 61. The hinge 67 passes through the connector 63 and is connected to a liquid crystal display (not shown) so that the liquid crystal display can change its pitch angle. It will be appreciated that the hinge 67 can also be omitted. The first housing 81 and the second housing 82 are used to cover the outside of the support body 20 and the locking mechanism 50, and mainly serve as a decorative effect, and both can be omitted.

Referring to FIG. 4, the top of the support body 20 is provided with a mounting groove 23 for mounting the locking mechanism 50 in the second direction. In the present embodiment, the second direction is a vertical direction that intersects the first direction. The mounting groove 23 has an elliptical cross section and a circle on the bottom surface thereof. The shape receiving hole 231 and the two threaded holes 233 on both sides of the receiving hole 231. The receiving hole 231 is in communication with the mounting hole 21, and the end of the receiving hole 231 is further provided with a cutout portion 235 (see FIG. 14). Two threaded holes 233 are respectively located on both sides of the receiving hole 231.

The locking mechanism 50 includes a button 51, an active member 52, a follower 53, a limiting member 54, an elastic member 55, and a screw 56.

The button 51 is a hollow cylinder having a bottom wall.

The driving member 52 is substantially cylindrical and has a step portion 521 formed at one end thereof. A plurality of first ratchet teeth 523 are provided on the end surface of the step portion 521 in the axial direction. A first guide post 5211 having three equal intervals is provided on the outer peripheral surface of the step portion 521.

The follower 53 includes a cylindrical boss 531 and a flange portion 533 extending from the middle of the boss 531. The lower end of the stud 531 can pass through the receiving hole 231 and enter the mounting hole 21. The top end of the flange portion 533 is provided with a second ratchet tooth 5331 for meshing with the first ratchet tooth 521 of the driving member 52. A second guide post 5333 having three equal intervals is further provided on the outer peripheral surface of the flange portion 533. The width of the second guiding post 5333 is the same as the width of the first guiding 5211, and the top end of the second guiding post 5333 is formed with a first inclined surface 5335.

The limiting member 54 includes a cylindrical body 541 and a connecting portion 543 formed by extending one end thereof and having an elliptical cross section. The connecting portion 543 is received in the mounting groove 23 of the support body 20, and the main body 541 is received in the receiving hole 231. A circular through hole 545 penetrating through the stopper 54 is opened in the middle of the connecting portion 543. Two through holes 547 are respectively disposed on both sides of the through hole 545. Referring to FIG. 5 and FIG. 6 together, the inner surface of the through hole 545 of the limiting member 54 is further provided with a guiding portion 546. The guiding portions 546 are three groups, wherein each group includes a first guiding groove 5461, a first guiding protrusion 5463, and a second guiding groove 5465 which are sequentially adjacent in the second direction. The second guiding protrusion 5467. The first guiding groove 5461 is for guiding the first guiding post 5211 and the second guiding post 5333 to slide in the second direction therein. The bottom end of the first guiding protrusion 5463 is formed with a second inclined surface 5462 that cooperates with the first inclined surface 5335 of the second guiding post 5333. The second guiding protrusion 5467 has the same shape as the first guiding protrusion 5463, and has a third inclined surface 5466 at its bottom end. The second guiding groove 5465 is located between the first guiding protrusion 5463 and the second guiding protrusion 5467, and the bottom end thereof is formed with a stopping portion 5464 which can cooperate with the first inclined surface 5335 of the second guiding post 5333. The stopper portion 5464 is closer to the top end of the through hole 545 than the second slope 5462 and the third slope 5466. The length of the second guiding groove 5465 is smaller than that of the first guiding groove 5461. Therefore, when the second guiding post 5333 is switched between the first guiding groove 5461 and the position of the blocking portion 5464, the follower 53 is opposite to the limit. The position of the bit member 54 will change accordingly.

The elastic member 55 is a compression spring that is sleeved on the boss 531 of the follower 53 and has one end that abuts against the flange portion 533 of the follower 53 and the other end that abuts against the top surface of the neck portion 235 of the support body 20.

The screw 56 is configured to pass through the through hole 547 and the threaded hole 233 to fix the limiting member 54 in the mounting groove 23 of the supporting body 20 .

When the locking mechanism 50 is assembled, the elastic member 55 is first placed in the receiving hole 231 of the supporting body 20 and stays on the narrowing portion 235, and then the protruding post 531 of the follower 53 is inserted into the elastic member 55, and the driving member 52 is placed. Above the follower 53 and contacting the first ratchet teeth 523 with the second ratchet teeth 5331, the limiting member 54 is sleeved on the outside of the driving member 52 and the driven member 53, and the limiting member 54 is screwed 56. It is fixed in the mounting groove 23, and the last button 51 is fixedly sleeved on the driving member 52 to facilitate pressing the driving member 52.

In order to better illustrate the movement and cooperation between the active member 52, the follower 53 and the limiting member 54, please refer to FIG. 7 to FIG. 7 to 13 are schematic views of the first ratchet teeth 523 of the driving member 52, the second ratchet teeth 5331 of the follower 53 and the guiding portion 546 of the limiting member 54 extended along the circumferential direction thereof. For ease of understanding, only one first guide post 5211 and one second guide post 5333 are shown in FIG. 7 to FIG. 13 , and the other two first guide posts 5211 and the second guide post 5333 have the same action.

FIG. 7 is a schematic view showing the locking mechanism 50 in an unlocked state. The unlocking state is a state in which the protruding post 531 of the follower 53 is not inserted into the locking hole 65 of the connector 60, that is, the connector 60 can be pulled out from the supporting body 20. The state of coming out. In the unlocked state, the driving member 52 and the follower 53 are fixed to the top of the through hole 545 by the elastic member 55. At this time, the protruding post 531 of the follower 53 is completely received in the through hole of the limiting member 54. The first guide post 5211 of the active member 52 and the second guide post 5333 of the follower 53 are accommodated in the first guiding groove 5461 of the guiding portion 546. In this state, the first ratchet teeth 523 and the second ratchet teeth 5331 are combined in an unstable manner, that is, the tooth tops of the first ratchet teeth 523 are located between the root portion of the second ratchet teeth 5331 and the top of the teeth. However, since the first guide post 5211 and the second guide post 5333 are located together in the first guiding groove 5461, the active member 52 and the follower 53 do not rotate relative to each other and remain stable.

As shown in FIG. 8, when the button 51 is pressed downward to overcome the elastic force of the elastic member 55 to push the driving member 52 downward, the follower 53 will move downward together with the driving member 52, so that the second guide The post 5333 reaches a position adjacent to the extreme end of the first guiding projection 5463. During this period, since the second guide post 5333 of the follower 53 is always accommodated in the first guiding groove 5461, the tendency of the follower 53 to rotate about its own axis is limited, and the follower 53 and the active member 52 are between The relative positional relationship remains the same.

As shown in FIG. 9, when the pressure is continuously applied to the driving member 52, the second guide post 5333 is completely withdrawn from the guiding groove 5461, and at this time, the restriction of the rotation of the follower 53 about its own axis is released. Under the action of the first ratchet teeth 523, the follower 53 rotates at an angle about its own axis to fully engage the second ratchet teeth 5331 with the first ratchet teeth 523 of the active member 52. After the engagement, the driving member 52 and the follower 53 are lowered together to a pressing stroke end position in a relatively stable manner.

FIG. 10 is a schematic view showing the locking mechanism 50 in a locked state. The locking state is a state in which the protruding post 531 of the follower 53 has been inserted into the locking hole 65 of the connector 60. At this time, the stud 531 will be the connector 60. It is locked with the support body 20. As shown in FIG. 10, when the pressing force of the driving member 52 is released at the end of the pressing stroke shown in FIG. 9, the active member 52 and the follower 53 are raised together under the rebound of the elastic member 55. When the second guiding post 5333 is in contact with the first guiding protrusion 5463, the first inclined surface 5335 of the second guiding post 5333 is moved to the right under the guiding action of the second inclined surface 5462 of the first guiding protrusion 5463, so that The moving member 53 continues to rotate by a certain angle. Since the first guide post 5211 of the active member 52 is always located in the first guiding groove 5461, the active member 52 cannot rotate. The relative movement between the active member 52 and the follower 53 causes the first ratchet teeth 523 and the second ratchet teeth 5331 to no longer fully engage and rise together in an unstable combined state similar to that of FIG. Since the stopping portion 5464 of the second guiding groove 5465 is closer to the top end of the through hole 545 than the second inclined surface 5462, when the follower 53 is raised to a certain position, the second guiding post 5333 automatically enters the second position. The groove 5465 is guided, and the first slope 5335 of the second pillar 5333 is abutted against the stopper 5464. At this time, the follower 53 is stabilized at a position closer to the bottom of the through hole 545 of the stopper 54 than the unlocked state, and the portion of the boss 531 of the follower 53 protrudes beyond the through hole 545.

As shown in FIG. 11, when the downward pressure is applied to the driving member 52 to push the driving member 52 downward, the second guiding post 5333 of the follower 53 will follow the active member 52 in the second guiding groove 5465. It moves downward and is separated from the stopper 5464. When moving to a certain position, the second guide post 5333 reaches a position adjacent to the extreme end of the third guiding protrusion 5467.

As shown in Fig. 12, pressure is applied to the driving member 52, and the second guiding post 5333 is completely withdrawn from the second guiding groove 5465. At this time, the restriction of the rotation of the follower 53 about its own axis is released. Under the action of the first ratchet teeth 523, the follower 53 rotates at an angle to fully engage the second ratchet teeth 5331 and the first ratchet teeth 523 again. After the engagement, the driving member 52 and the follower 53 are lowered together to a pressing stroke end position in a relatively stable manner.

Figure 13 is a schematic illustration of the locking mechanism 50 returning to the unlocked state. As shown in Fig. 13, when the pressing force of the driving member 52 is released at the end of the pressing stroke shown in Fig. 12, the active member 52 and the follower 53 are raised together by the rebound of the elastic member 55. When the second guiding post 5333 is in contact with the second guiding protrusion 5467, the first inclined surface 5335 of the second guiding post 5333 is moved to the right under the guiding action of the third inclined surface 5466 of the second guiding protrusion 5467, so that The moving member 53 continues to rotate by a certain angle to gradually enter the next first guiding groove 5461. The relative movement between the active member 52 and the follower 53 causes the first ratchet teeth 523 and the second ratchet teeth 5331 to no longer fully engage and rise together in an unstable combined state. After being raised to the top end, the boss 531 of the follower 53 is again accommodated in the through hole 545 of the stopper 54 again.

Please refer to Figure 14 to Figure 15 together. When the liquid crystal display screen is to be mounted to the supporting device 100, the locking mechanism 50 is first unlocked, the insertion portion 61 of the connector 60 is inserted into the mounting hole 21, and the locking hole 65 is aligned with the supporting body. 20 receiving hole 231; at this time, the connector 60 cannot move in other directions except for sliding in the mounting hole 21; then, a downward pressure is applied to the button 51 of the locking mechanism 50, so that the locking mechanism 50 is changed from the unlocked state to the locked state. The state and driving the protrusion 531 of the follower 53 enters through the receiving hole 231 and is secured in the locking hole 65 of the connector 60, that is, as shown in FIG. 10; at this time, the connector 60 cannot be installed in the mounting hole 21. The inside slides, thereby fixing the liquid crystal display screen and the support body 20.

When the liquid crystal display screen needs to be detached from the support device 100, only the downward pressure is applied to the button 51 again, so that the locking mechanism 50 returns from the locked state to the unlocked state as shown in FIG. 7 or FIG. 13; At this time, the boss 531 moves upward to be removed from the locking hole 65, and the connector 60 can be removed from the mounting hole 21 to be separated from the support body 20.

When the supporting device 100 of the embodiment of the present invention is used, the installation and disassembly of the display screen can be realized only by pressing the button 51, and the whole process is convenient and quick. Since the weight of the liquid crystal display is mainly supported by the mounting hole 21 and the connector 60, the relative force between the protruding post 531 and the locking hole 65 is small, and the friction generated during relative movement is small and is not easy to wear, so the supporting device The service life of 100 is higher.

It can be understood that the locking mechanism 50 can also be disposed not on the top surface of the support body 20 but in another horizontal direction intersecting the first direction, for example, on one side adjacent to the mounting hole 21. The locking mechanism 50 may also not adopt the structure described in the embodiment of the present invention, for example, a solenoid valve, a cylinder, or the like may be used to drive the follower 53 to move back and forth to insert and lock the protruding post 531 into the locking hole of the connector 60. The structure of 65.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and cannot be limited thereto. The scope of the patent application for this case. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

20‧‧‧Support subject

23‧‧‧Installation slot

233‧‧‧Threaded holes

51‧‧‧ button

521‧‧‧Steps

523‧‧‧First ratchet teeth

531‧‧‧Bump

5331‧‧‧Second ratchet teeth

5335‧‧‧First bevel

541‧‧‧ Subject

545‧‧‧through holes

55‧‧‧Flexible parts

60‧‧‧Connectors

63‧‧‧Connecting parts

21‧‧‧Installation holes

231‧‧‧ accommodating holes

50‧‧‧Locking mechanism

52‧‧‧Active parts

5211‧‧‧First guide column

53‧‧‧ Followers

533‧‧‧Flange

5333‧‧‧Second guide post

54‧‧‧Limited parts

543‧‧‧Connecting Department

547‧‧‧through hole

56‧‧‧ screws

61‧‧‧Interface

65‧‧‧Lock hole

Claims (9)

A support device includes a support body and a connector connected to the support, wherein the support body is provided with a mounting hole for receiving the connector and a locking mechanism matched with the mounting hole, the plug The connecting member can insert or pull out the mounting hole in a first direction, the locking mechanism includes a limiting member, an active member, a driven member and an elastic member, and the driven member is disposed to intersect the first direction a two-direction telescopic column, the limiting member has a guiding portion, the active member is provided with a first ratchet tooth, and is movable relative to the limiting member in a second direction, and the second ratchet tooth is disposed on the driven member And moving relative to the limiting member in the second direction, and rotating relative to the limiting member under the action of the guiding portion, the elastic member is configured to apply force to the follower in the second direction, so that the first a ratchet tooth meshes with the second ratchet tooth, and the latching member is provided with a locking hole for receiving the protruding post. When the connector is received in the mounting hole, the locking mechanism drives the protruding post into the locking hole Thereby limiting the connector from the mounting hole in the first direction. The supporting device of claim 1, wherein the supporting body further has a receiving hole for mounting the locking mechanism, wherein the protruding post of the locking mechanism can be in the second direction in the receiving hole mobile. The support device of claim 1, wherein the limiting member has a through hole for receiving the active member and the driven member, and the guiding portion is disposed on an inner wall of the through hole. The support device of claim 3, wherein the guiding portion comprises a first guiding groove, a first guiding protrusion, a second guiding groove and a second guiding protrusion which are sequentially adjacent in the second direction. The driving member and the surface of the follower are respectively provided with a first guiding post and a second guiding post that cooperate with the first guiding slot, the first guiding protrusion and the second guiding The guiding protrusion can guide the rotation of the follower and switch the second guiding post in the first guiding groove and at two positions in the second guiding groove. The support device of claim 4, wherein the top end of the second guide post forms a first inclined surface, and the bottom of the second guiding groove forms a stop portion that abuts the first inclined surface. The support device of claim 5, wherein the first guiding protrusion and the end of the second guiding protrusion are respectively formed with a second inclined surface and a third inclined surface that cooperate with the first inclined surface. The support device of claim 6, wherein the elastic member is sleeved on the protruding post, one end of which is opposite to the driven member, and the other end is opposite to the supporting body. The support device of claim 1, wherein the connector further comprises a hinge through which the support and the connector are connected. The support device of claim 1, wherein the support device further comprises a base, the support body being fixed to the base.