CN209229248U

CN209229248U - Latching device, display screen body and display device

Info

Publication number: CN209229248U
Application number: CN201821741245.XU
Authority: CN
Inventors: 李展强; 于永飞; 鲍晓东
Original assignee: Shenzhen Roevisual Technology Co Ltd
Current assignee: Shenzhen Roevisual Technology Co Ltd
Priority date: 2018-10-25
Filing date: 2018-10-25
Publication date: 2019-08-09
Anticipated expiration: 2028-10-25

Abstract

The utility model discloses a kind of latching device, display screen body and display device, latching device includes pedestal, and the setting fixed is on fixed body；Turntable, rotation are set on the base；Moving body is connect with pedestal, and turntable and moving body activity are arranged；When moving body is separated with turntable, turntable is rotated in the forward direction, and moving body and turntable unlock；When turntable reversely rotates, moving body and turntable split, moving body and turntable are locked；Telescopic component is connect with turntable, and drives it to stretch out or retract by the rotation of turntable.The utility model solves that body is improper falls off from frame because magnetic failure or maloperation lead to screen by above structure, and the problem of damage screen body.

Description

Latching device, display screen body and display device

Technical field

The utility model relates to latch field more particularly to latching device, display screen body and display device.

Background technique

Existing display screen body, which is mounted on frame, generallys use magnetic realization, however this mounting means exists because of magnetic It inhales failure or maloperation and leads to screen body is improper falls off from frame, and damage screen body, bring loss to user.

Utility model content

The utility model is intended to provide a kind of latching device, display screen body and display device and is asked with solving above-mentioned technology Topic.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows:

The utility model provides a kind of latching device, comprising:

Pedestal, the setting fixed is on fixed body；

Turntable, rotation are set on the base；

Moving body is connect with pedestal, and the turntable and moving body activity are arranged；

When the moving body is separated with turntable, turntable is rotated in the forward direction, and moving body and turntable unlock；Turntable is reversed When rotation, moving body and the turntable split, moving body and turntable are locked；

Telescopic component is connect with turntable, and drives it to stretch out or retract by the rotation of turntable.

The utility model provides a kind of display screen body, including bottom case, further includes the latching device, the pedestal It is mounted on the bottom case.

The utility model additionally provides a kind of display device, including frame, further includes the display screen body, described Display screen body is removably mounted on the frame by the telescopic component.

The utility model has the following beneficial effects:

The utility model provides a kind of latching device, display screen body and display device, by rotating in the forward direction transfer Disk when separating moving body with turntable, and drives telescopic component to stretch out, connect telescopic component with frame, to make to show Screen screen body is connect with the frame；By reversely rotating turntable, lock moving body and turntable, and telescopic component is driven to contract It returns, telescopic component and frame is made to be in notconnect state, display screen body is made to be detached from the frame；The utility model passes through above-mentioned Structure solves and leads to screen body is improper to fall off from frame because of magnetic failure or maloperation due to, and the problem of damage screen body.

Detailed description of the invention

Fig. 1 is a kind of top view of latching device of the utility model embodiment；

Fig. 2 is the A-A view in Fig. 1；

Fig. 3 is the B-B view in Fig. 1；

Fig. 4 is the explosive view under a kind of one visual angle of latching device of the utility model embodiment；

Fig. 5 is the explosive view under a kind of another visual angle of latching device of the utility model embodiment；

Fig. 6 is a kind of bottom view of latching device of the utility model embodiment；

Fig. 7 is the structural schematic diagram that the telescopic component of the utility model embodiment is connected with pedestal；

Fig. 8 is the structural schematic diagram of the turntable of the utility model embodiment；

Fig. 9 is the structural schematic diagram that the pedestal of the utility model embodiment is connect with turntable；

Figure 10 is the structural schematic diagram of the pedestal of the utility model embodiment；

Figure 11 is a kind of structural schematic diagram of latching device of the utility model embodiment；

Label declaration:

1, pedestal；2, turntable；3, moving body；4, telescopic component；5, limited block；6, arc limit slot；7, the first elasticity Part；8, newel；9, accommodating cavity；10, guide post；11, pilot hole；12, stop block；13, handle；14, sheet metal；15, it supports Part；16, column；17, press section；18, third elastic component；19, the second locking piece；20, the first locking piece；21, arc guides Slot；22, moving arm；23, guiding piece；24, the first guide groove；25, the second guide groove；26, telescopic claw；27, the 4th elastic component； 28, telescopic arm；29, plug；30, fixture block；31, T font card slot；32, bottom case.

Specific embodiment

For technology contents, the objects and the effects that the utility model is described in detail, below in conjunction with embodiment and match Attached drawing is closed to be explained.

The design of the utility model most critical is: turntable and moving body activity are arranged, and connect respectively with pedestal, when When turntable rotates in the forward direction, moving body and turntable are unlocked；When turntable reversely rotates, moving body and turntable are locked；It is flexible Component is connect with turntable, and drives it to stretch out or retract by the rotation of turntable.

Fig. 1 to Figure 11 is please referred to, the utility model provides a kind of latching device, comprising: pedestal, the setting fixed exist On fixed body；Turntable, rotation are set on the base；Moving body is connect with pedestal, and turntable is set with moving body activity It sets；When moving body is separated with turntable, turntable is rotated in the forward direction, and moving body and turntable unlock；When turntable reversely rotates, move Kinetoplast and turntable split, moving body and turntable lock；Telescopic component is connect with turntable, and is turned by turntable It is dynamic that it is driven to stretch out or retract.

As can be seen from the above description, the utility model provides a kind of latching device, display screen body and display device, lead to It crosses and rotates in the forward direction turntable, when separating moving body with turntable, and telescopic component is driven to stretch out, connect telescopic component and frame It connects, so that display screen body be made to connect with frame；By reversely rotating turntable, lock moving body and turntable, and drive Telescopic component retracts, and telescopic component and frame is made to be in notconnect state, and display screen body is made to be detached from frame；The utility model is logical Crossing above structure and solving leads to screen body is improper to fall off from frame because of magnetic failure or maloperation due to, and damages asking for screen body Topic.

Further, turntable is equipped with limited block, and pedestal is equipped with the arc limit slot matched with limited block；Or Person, turntable are equipped with arc limit slot, and pedestal is equipped with the limited block matched with arc limit slot.

As can be seen from the above description, be used cooperatively by above-mentioned limited block and limiting slot, can centering turntable angle rotation into Row limitation.

Further, the quantity of limited block and arc limit slot distinguishes multiple, rotation axis of the limited block around turntable It is uniformly arranged；Limited block is arranged in a one-to-one correspondence with arc limit slot.

As can be seen from the above description, being used cooperatively by multiple limited blocks and limiting slot, system rotary spacing can be improved Stability prevents one of them to be destroyed, and influences the normal use of latching device.

Further, latching device, further includes the first elastic component, and one end of the first elastic component connects turntable, and first The other end of elastic component connects pedestal, so that turntable is spindle rotationally arranged on pedestal.

As can be seen from the above description, can effectively realize that turntable is rotatably arranged on pedestal by above structure.

Further, the side of pedestal is equipped with recessed portion, and the center of recessed portion is equipped with newel, and turntable rotation is set in On newel and it is located in recessed portion, the first elastic component is set on newel.

As can be seen from the above description, by the way that turntable rotation is set on newel and is located in recessed portion, it can be sufficiently sharp With the spatial position of latching device, keep structure more compact；And the rotatable setting of turntable can be realized by newel.

Further, turntable and/or newel are equipped with the accommodating cavity for accommodating the first elastic component；First elastic component one end Newel is connected, the other end connects turntable.

As can be seen from the above description, turntable can be made by newel and the first elastic component, realize phase by above structure Pedestal is rotatably arranged.

It further, further include on newel for closing the door of accommodating cavity.

As can be seen from the above description, vacant chamber can be made to form confined space by door, the portion in accommodating chamber is effectively ensured Part works normally.

Further, the first elastic component is clockwork spring.

Further, pedestal is equipped with guide post, and moving body is equipped with for the perforative pilot hole of guide post, and moving body passes through Guide post is connect with pedestal, and moving body slides on pedestal along guide post.

As can be seen from the above description, moving body can be made relatively smooth to slide along guide post by above-mentioned knot guide post.

Further, the end of guide post is equipped with the stop block limited to the shift motion to moving body.

As can be seen from the above description, can effectively actually be limited to moving body by above structure.

It further, further include the second elastic component, the second elastic component is limited by stop block；One end of second elastic component is supported Moving body is held, the other end of the second elastic component supports baffle.

Preferably, the second elastic component is spring.

Further, the second elastic component is set in guide post.

It can be set in guide post by the second elastic component, from foregoing description by above structure effectively to moving body Reset operation is carried out, and improves the stationarity of latching device connection.

Further, moving body and turntable are located on the different side of pedestal.

Further, latching device further includes sheet metal, and sheet metal is set on moving body, and is located at the outside of pedestal.

As can be seen from the above description, pass through above structure, it can be achieved that sheet metal with outside screen body normally fall off, ensure that screen Body is not destroyed.

Further, latching device further includes the supporting member on pedestal, rotation axis of the supporting member along turntable Moving body is supported in the setting of sliding, one end of supporting member, and the other end of supporting member exposes to latching device.

Further, supporting member includes column and press section, and moving body is supported in one end of column, column it is another End connection press section, press section exposes to latching device.

It further, further include the handle being connect with turntable, rotational handle is to drive transfer disc spins.

Further, the third elastic component reset it is arranged on supporting member.

Further, pedestal is equipped with containing cavities, and third elastic component is located in containing cavities.

Preferably, third elastic component is spring.

As can be seen from the above description, supporting member upward sliding is made by rotating handle, so that moving member is moved up, and The sheet metal on moving member is set to suck the magnetically attractive part of external screen body, rotating handle while, drives turntable to rotate in the forward direction, and So that clockwork spring is in open configuration, drive turntable to rotate by a certain angle, stretch out telescopic component, is connect with external frame.It is logical The steering rotating handle contrary with above-mentioned rotatable handle is crossed, supporting member slide downward is made, so that moving member is moved down, And make moving member and base contacts, and so that the sheet metal on moving member is separated from the magnetically attractive part of external screen body, while driving transfer Disk reversely rotates, and keeps clockwork spring in tension, drives the reversed certain angle of transfer disc spins, retracts telescopic component, with External frame is detached from.

Further, turntable is equipped with the first locking piece, and moving body is equipped with second matched with the first locking piece Locking piece；Pedestal, which is equipped with, supplies the first locking piece or the perforative location hole of the second locking piece.

Further, the first locking piece or the second locking piece are locking column, and locking column runs through location hole.

As can be seen from the above description, can effectively realize the connection of moving member and pedestal by above-mentioned locking column and location hole.

Further, turntable is equipped at least one arc guide slot, the starting point of arc guide slot and turntable Spacing between rotation axis is greater than the spacing between the clearing end of arc guide slot and the rotation axis of turntable.

Further, arc guide slot is uniformly arranged around the rotation axis of turntable.

Further, telescopic component includes moving arm, the connection of moving arm and arc guide slot sliding.

Further, the quantity of telescopic component is multiple, and the quantity of telescopic component is less than or equal to the number of arc guide slot Amount, each telescopic component have an arc guide slot matched respectively.

Further, moving arm is equipped with guiding piece, and guiding piece is located in arc guide slot and arcuately guiding groove slides Setting.

Further, pedestal is equipped with the first guide groove, and guiding piece is connect with arc guide slot by the first guide groove, made The setting that guiding piece is slided along the first guide groove extending direction.

Further, the first guide groove being arranged radially along turntable.

As can be seen from the above description, making the guiding piece arcuately interior sliding of guiding groove, since arc draws by the rotation of turntable Spacing between the starting point of guide groove and the rotation axis of turntable is greater than the rotation of the clearing end and turntable of arc guide slot Spacing between axis, so that the moving arm of telescopic component be made to stretch out or retract.

Further, moving arm is equipped with guide part, and guide part is the guide pad being arranged along moving arm length direction or the Two guide grooves.

As can be seen from the above description, by above structure guiding role can be played to the movement of moving arm.

Further, telescopic component includes telescopic claw and the 4th elastic component, and telescopic claw passes through the 4th elastic component and telescopic arm Movable connection.

Further, the end of telescopic claw has the plug fastened with latched position.

Further, one end of the 4th elastic component connects telescopic arm, and the other end of the 4th elastic component connects telescopic claw.

Preferably, the 4th elastic component is spring.

As can be seen from the above description, the telescopic claw by telescopic component is mobile, to drive the movement of telescopic arm；And by stretching The plug of paw withdrawal end is realized to be fastened and connected with the slot of external frame；When telescopic arm retracts, plug and external frame are realized The disengaging of the slot of frame realizes being fastened and connected for the slot of plug and external frame when telescopic arm stretches out.

Further, one end that telescopic arm is connect with telescopic claw is equipped with the fixture block of T font, and telescopic claw is equipped with and fixture block phase The T font card slot of cooperation.

As can be seen from the above description, can realize being stably connected with for telescopic arm and telescopic claw by above structure.

The utility model provides a kind of display screen body, including bottom case, also included latching device, and pedestal is mounted on bottom On shell.

The utility model provides a kind of display device, including frame, also included display screen body, display screen body It is removably mounted on frame by telescopic component.

The working process of the utility model is as follows locking process, when locking, latching device will be locked with frame, at this time:

On the telescopic claw insertion frame of telescopic component, moving body is in the state tensed far from lamp plate, clockwork spring.

1, it when taking screen, is unlocked by the way of needing to safeguard using preceding screen, at this time:

It is adsorbed on lamp face using external magnetic absorption member, magnetic absorption member attracts the sheet metal on moving body, to drive Moving body is mobile towards lamp face direction, and the second locking piece, that is, locking column on moving body will leave the first locking of turntable Part the second locking piece location hole, at the same time transfer disc spins, clockwork spring relaxation, during the end face of the locking column of moving body will be supported The non-other positions equipped with location hole of turntable make moving body stretch out one end distance relative to pedestal, and moving body is by locking It supports turntable and is defined position, since the rotation of turntable is to make the plug of telescopic component connected to it retract, lock Buckle mechanism and framework apart are to unlock display screen.

2. when dress screen, when installing display screen by the way of the maintenance of preceding screen, needing that latching device is made to be in locking in advance State, at this point, latching device is in the unlocked state:

Rotating handle first makes handle drive transfer disc spins, and clockwork spring is tightened up, transfer disc spins and the lock for making moving body Fixed column reenters in location hole, and moving body sinks and is close to turntable, so that the sheet metal on moving body be made to stretch far from lamp face The plug of contracting component stretches out outwardly, then splices display screen and frame, makes in the corresponding position on plug insertion frame with reality Now lock.

3, it can be achieved that the unlock of latching device when being manually operated by the way of being safeguarded after:

The press section for pushing pressing supporting member makes supporting member drive column mobile to support moving body, can push shifting Kinetoplast leaves turntable and stretches out, and the sheet metal on moving body is made to stretch out a distance to lean on low beam face, so that substitution is in preceding dimension Used magnetic absorption member, realization can also unlock when rear maintenance when shield unlock, and the effect of third elastic component will make supporting member It can automatic rebounding reset after being pressed.

Please referring to Fig. 1 to Figure 11, the embodiments of the present invention one are as follows: the utility model provides a kind of latching device, It include: pedestal 1, the setting fixed is on fixed body；Turntable 2, the setting of rotation is on pedestal 1；Moving body 3, with Pedestal 1 connects, and turntable 2 and 3 activity of moving body are arranged；When moving body 3 is separated with turntable 2, turntable 2 is rotated in the forward direction, and is moved Kinetoplast 3 and turntable 2 unlock；When turntable 2 reversely rotates, moving body 3 and 2 split of turntable, moving body 3 and turntable 2 are locked It is fixed；Telescopic component 4 is connect with turntable 2, and drives it to stretch out or retract by the rotation of turntable 2.

The embodiments of the present invention two are as follows:

The present embodiment two and the difference of embodiment one be, a kind of latching device further include: the first elastic component 7, second Elastic component and door；

One end of first elastic component 7 connects turntable 2, and the other end of the first elastic component 7 connects pedestal 1, so that turntable 2 It is spindle rotationally arranged on pedestal 1；

The side of pedestal 1 is equipped with recessed portion, and the center of recessed portion is equipped with newel 8, and the rotation of turntable 2 is set in newel On 8 and be located in recessed portion, with save turntable 2 and pedestal 1 stitch and fasten after whole size, the first 7 sets of elastic component It is located on newel 8, is fixed on the first elastic component 7 on pedestal 1, and make to rotate forward automatically between pedestal 1 and turntable 2 Or reversion；Turntable 2 is equipped with the accommodating cavity 9 for accommodating the first elastic component 7, to provide the movable extending space of the first elastic component 7, It and can connect turntable 2 and the first elastic component 7；Door (label) is set on newel 8, for closing accommodating cavity 9, is avoided First elastic component 7 therefrom pops up when activity；First elastic component 7 is clockwork spring；

Turntable 2 is equipped with limited block 5, and pedestal 1 is equipped with the arc limit slot 6 matched with limited block 5；In alternatively, Turntable 2 is equipped with arc limit slot, and pedestal 1 is equipped with the limited block matched with arc limit slot；Limited block 5 and arc-shaped limit The quantity difference of slot 6 is multiple, and limited block 5 is uniformly arranged around the rotation axis of turntable 2；Limited block 5 and arc limit slot 6 one One is correspondingly arranged, when turntable 2 by the first elastic component 7 actuate drive rotation when, the limited block 5 of turntable 2 will be in arc Sliding in shape limiting slot 6 and by the angle of the limitation rotation of arc limit slot 6, avoids the unconfined rotation of turntable 2；

Pedestal 1 is equipped with guide post 10, and moving body 3 is equipped with for the perforative pilot hole 11 of guide post 10, and moving body 3 passes through Guide post 10 is connect with pedestal 1, and moving body 3 slides on pedestal 1 along guide post 10, and moving body can be by guide post in pedestal Upper movement with close to pedestal or far from pedestal, make sheet metal and lamp face close to or far from；The end of guide post 10 is equipped with to right The stop block 12 that the shift motion of moving body 3 is limited, the shift motion of moving body can be limited by stop block, avoid moving Kinetoplast is deviate from from pedestal；Second elastic component (showing in figure) is limited by stop block 12；Second elastic component is set in guiding On column 10, the second elastic component is spring, and the second elastic component applies the power of pop-up to moving body, make moving body when by low beam face more Add rapidly close with lamp face, using effect is more preferable；Moving body 3 and turntable 2 are located on the different side of pedestal 1, are moved Kinetoplast makes after popping up to install sheet metal, moving body by low beam face, stretching and contraction of the turntable to drive telescopic component, And the movement of moving body, the not ipsilateral that the two is separately positioned on pedestal can help to save space.

The embodiments of the present invention three are as follows:

The embodiments of the present invention third is that on the basis of embodiment one or embodiment two to latching device make into One step improve, latching device, further include sheet metal 14, supporting member 15；Sheet metal 14 can be iron plate；

Sheet metal 14 is set on moving body 3, and is located at the outside of pedestal 1；Supporting member 15 is arranged in pedestal 1, supporting member 15 Moving body 3 is supported in the setting slided along the rotation axis of turntable 2, one end of supporting member 15, and the other end of supporting member 15 is exposed In latching device；15 one end of supporting member is convenient to be manually operated for pressing the other end to support moving body.

Supporting member 15 includes column 16 and press section 17, and moving body 3 is supported in one end of column 16, column 16 it is another One end connects press section 17, and press section 17 exposes to latching device；The third bullet reset it is arranged on supporting member 15 Property part 18, third elastic component 18 be spring；Pedestal 1 is equipped with containing cavities, and third elastic component 18 is located in containing cavities；Supporting member exists Can be by spring automatic reset after being pressed, and facilitate supporting member to release moving body and realize unlock.

It further include the handle 13 being connect with turntable, rotational handle 13 is to drive transfer disc spins, and rotating handle 13 is by band Dynamic transfer disc spins, to facilitate the locking of latching device, even if on plug insertion frame.

Turntable 2 is equipped with the first locking piece 20, and moving body 3 is equipped with the second locking matched with the first locking piece 20 Part 19；Pedestal 1, which is equipped with, supplies the first locking piece 20 or the perforative location hole of the second locking piece 19；First locking piece 20 is locking Column, the second locking piece 19 is lock hole or first locking piece is lock hole, and the second locking piece is locking column, and locking column passes through Wear location hole.By the cooperation grafting between the first locking piece and the second locking piece, that is, positioning column and positioning hole, and separate, with Realize the locking and unlocking between moving body and turntable.Turntable 2 is equipped at least one arc guide slot 21, arc guidance Spacing between the starting point of slot 21 and the rotation axis of turntable 2 is greater than the clearing end and turntable 2 of arc guide slot 21 Spacing between rotation axis；Telescopic component can be made to realize telescopic action when moving in this way；

Turntable 2 is equipped at least one arc guide slot 21, the starting point of arc guide slot 21 and the rotation of turntable 2 Spacing between axis is greater than the spacing between the clearing end of arc guide slot 21 and the rotation axis of turntable 2；Arc guidance Slot 21 is uniformly arranged around the rotation axis of turntable 2；

Telescopic component 4 includes moving arm 22, the connection that moving arm 22 and arc guide slot 21 slide；Moving arm 22 is equipped with Guiding piece 23, guiding piece 23 are located at the setting that in arc guide slot 21 and arcuately guiding groove 21 slides；Pedestal 1 is equipped with first Guide groove 24, guiding piece 23 are connect by the first guide groove 24 with arc guide slot 21, make guiding piece 23 along the first guide groove 24 The setting of extending direction sliding；First being arranged radially along turntable 2 of guide groove 24；Moving arm 22 is equipped with guide part, guiding Portion is the guide pad or the second guide groove 25 being arranged along 22 length direction of moving arm；Guarantee that telescopic component can move along a straight line, subtracts Latched position misalignment caused by few swing, to avoid damage locked component.

Telescopic component 4 includes telescopic claw 26 and the 4th elastic component 27, and telescopic claw 26 passes through the 4th elastic component 27 and telescopic arm 28 movable connections；The end of telescopic claw 26 has the plug 29 fastened with latched position；One end of 4th elastic component 27 connects Telescopic arm 28, moving arm 22 and telescopic arm 28 connect；The other end of 4th elastic component 27 connects telescopic claw 26；Telescopic arm 28 with stretch One end that paw withdrawal 26 connects is equipped with the fixture block 30 of T font, and telescopic claw 26 is equipped with the T font card slot 31 matched with fixture block 30. 4th elastic component 27 can realize the flexible of telescopic claw 26, when preparing for display screen to be mounted on frame, pass through telescopic claw 26 In correspondence jack on the insertion frame of 29 elasticity of plug that is flexible and making telescopic claw, locking is realized, thus when buffering insertion Push display screen and to the oppressive force that telescopic claw generates, avoid telescopic component due to installed thrust is too big caused by damage.

The embodiments of the present invention four are as follows:

The utility model additionally provides a kind of display screen body, including bottom case 32, further includes that embodiment one to three is any Latching device, pedestal 1 are mounted on bottom case 32.

The embodiments of the present invention five are as follows:

The utility model additionally provides a kind of display screen body, including frame, further includes the display screen in example IV Body, display screen body are removably mounted on frame by telescopic component 4.

To sum up, the utility model provides a kind of latching device, display screen body and display device, by rotating in the forward direction Turntable when separating moving body with turntable, and drives telescopic component to stretch out, connect telescopic component with frame, to make Display screen body is connect with frame；By reversely rotating turntable, lock moving body and turntable, and telescopic component is driven to contract It returns, telescopic component and frame is made to be in notconnect state, display screen body is made to be detached from frame；The utility model passes through above structure Solve leads to screen body is improper to fall off from frame because of magnetic failure or maloperation due to, and the problem of damage screen body.

The above is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all utilizations Equivalents made by the utility model specification and accompanying drawing content are applied directly or indirectly in relevant technical field, It similarly include in the scope of patent protection of the utility model.

Claims

1. latching device characterized by comprising pedestal, the setting fixed is on fixed body；Turntable, rotation are set It sets on pedestal；Moving body is connect with pedestal, and the turntable and moving body activity are arranged；The moving body and turntable When separation, turntable is rotated in the forward direction, and moving body and turntable unlock；When turntable reversely rotates, moving body and the turntable Split, moving body and turntable lock；Telescopic component is connect with turntable, and drives its stretching by the rotation of turntable Or it retracts.

2. latching device according to claim 1, which is characterized in that the turntable is equipped with limited block, the pedestal It is equipped with the arc limit slot matched with the limited block；Alternatively, the turntable is equipped with arc limit slot, the pedestal It is equipped with the limited block matched with the arc limit slot.

3. latching device according to claim 2, which is characterized in that the quantity of the limited block and the arc limit slot Multiple respectively, the limited block is uniformly arranged around the rotation axis of the turntable.

4. latching device according to claim 1, which is characterized in that it further include the first elastic component, first elastic component One end connect the turntable, the other end of first elastic component connects pedestal, so that turntable is spindle rotationally arranged in On pedestal.

5. latching device according to claim 4, which is characterized in that the side of the pedestal is equipped with recessed portion, described recessed The center of concave portion is equipped with newel, and the turntable rotation is set on the newel and is located in the recessed portion, described First elastic component is set on the newel.

6. latching device according to claim 5, which is characterized in that the turntable and/or the newel are equipped with Accommodate the accommodating cavity of first elastic component.

7. latching device according to claim 6, which is characterized in that further include on the newel for closing The door of the accommodating cavity.

8. latching device according to claim 4, which is characterized in that first elastic component is clockwork spring.

9. latching device according to claim 1, which is characterized in that the pedestal is equipped with guide post, the moving body It is equipped with and supplies the perforative pilot hole of the guide post, the moving body is connect by guide post with pedestal, and moving body is along guiding Column slides on pedestal.

10. latching device according to claim 9, which is characterized in that the end of the guide post is equipped with to movement The stop block that the shift motion of body is limited.

11. latching device according to claim 10, which is characterized in that it further include the second elastic component, second elasticity Part is limited by the stop block.

12. latching device according to claim 11, which is characterized in that second elastic component is set in the guide post On.

13. latching device according to claim 1, which is characterized in that the moving body and the turntable are located at On the different side of the pedestal.

14. latching device according to claim 1, which is characterized in that further include sheet metal, sheet metal is set to the movement On body, and it is located at the outside of pedestal.

15. latching device according to claim 1, which is characterized in that further include the supporting member on the pedestal, institute The setting that supporting member is slided along the rotation axis of the turntable is stated, the moving body is supported in one end of the supporting member, described The other end of supporting member exposes to the latching device.

16. latching device according to claim 15, which is characterized in that the supporting member includes column and press section, The moving body is supported in one end of the column, and the other end of the column connects the press section, outside the press section It is exposed to the latching device.

17. latching device according to claim 16, which is characterized in that it further include the handle being connect with turntable, rotation The handle is to drive transfer disc spins.

18. the described in any item latching devices of 5-17 according to claim 1, which is characterized in that be arranged on the supporting member useful So that the third elastic component of its reset.

19. latching device according to claim 18, which is characterized in that the pedestal is equipped with containing cavities, the third Elastic component is located in the containing cavities.

20. latching device according to claim 1, which is characterized in that the turntable is equipped with the first locking piece, described Moving body is equipped with the second locking piece matched with first locking piece；The pedestal, which is equipped with, supplies first locking piece Or the second perforative location hole of locking piece.

21. latching device according to claim 20, which is characterized in that first locking piece is locking column, the second lock Determine that part is lock hole or first locking piece is lock hole, the second locking piece is locking column, and the locking column is through described fixed Position hole.

22. latching device according to claim 1, which is characterized in that the turntable is equipped at least one arc and draws Guide groove, the spacing between the starting point of the arc guide slot and the rotation axis of the turntable are greater than the arc guide slot Clearing end and the turntable rotation axis between spacing.

23. latching device according to claim 22, which is characterized in that the arc guide slot is around the turntable Rotation axis is uniformly arranged.

24. latching device according to claim 22, which is characterized in that the telescopic component includes moving arm, the shifting The connection of swing arm and arc guide slot sliding.

25. latching device according to claim 24, which is characterized in that the moving arm is equipped with guiding piece, described to draw Guiding element is located in the arc guide slot and along the setting of arc guide slot sliding.

26. latching device according to claim 25, which is characterized in that the pedestal is equipped with the first guide groove, described Guiding piece is connect by the first guide groove with arc guide slot, sets guiding piece along what the first guide groove extending direction slided It sets.

27. latching device according to claim 26, which is characterized in that diameter of first guide groove along the turntable To setting.

28. latching device according to claim 24, which is characterized in that the moving arm is equipped with guide part, described to lead It is the guide pad or the second guide groove being arranged along moving arm length direction to portion.

29. latching device according to claim 24, which is characterized in that the telescopic component includes telescopic claw and the 4th bullet Property part, the telescopic claw passes through the 4th elastic component and the movable connection of telescopic arm.

30. latching device according to claim 29, which is characterized in that the end of the telescopic claw has and latched position The plug of fastening.

31. latching device according to claim 29, which is characterized in that stretched described in one end connection of the 4th elastic component The other end of contracting arm, the 4th elastic component connects the telescopic claw.

32. latching device according to claim 29, which is characterized in that one end that the telescopic arm is connect with telescopic claw is set There is the fixture block of T font, the telescopic claw is equipped with the T font card slot matched with the fixture block.

33. display screen body, including bottom case, which is characterized in that further include lock described in any one of claim 1-32 Mechanism, the pedestal are mounted on the bottom case.

34. display device, including frame, which is characterized in that it further include display screen body described in claim 33, it is described aobvious Display screen screen body is removably mounted on the frame by the telescopic component.