TWI795239B - Retractable block device and supporting device having retractable blocking function - Google Patents

Abstract

A retractable block device and a supporting device having retractable blocking function are disclosed. The retractable block device includes a base, a push-push button retractable mechanism, a displacement amplification mechanism, a limitation mechanism, and a baffle. The push-push button retractable mechanism includes a buckle seat and a push rod. The buckle seat is arranged on the base, and the push rod is arranged on the buckle seat along a retracting direction. The push rod is configured to be repeatedly pressed along the retracting direction to move to a release position and a fix position, and provides an original displacement between the fixed position and the released position. The displacement amplification mechanism includes plural pairs of cross-linked bars providing a bottom end, a connecting portion and a top end arranged in sequence. The bottom end is movable arranged on the buckle seat, the top end is connected to the push rod, and the connecting portion is connected to the push rod. The top end is used to generate an enlarged displacement along the retracting direction when the push rod provides the original displacement. The limitation mechanism is disposed on the base to provide a movement direction limitation parallel to the retracting direction. The baffle is movably arranged on the limitation mechanism, and is restricted by the movement direction limitation to move parallel to the retracting direction; wherein, the top end of the displacement amplification mechanism is connected to the baffle.

Description

Telescopic stop device and carrying device with stop function

The invention relates to a stop structure arranged on the edge of a platform, in particular to a telescopic stop device and a carrying device with a stop function.

A platform for placing objects, especially a platform with an inclined configuration, usually has a stop structure on the edge (located on the lower side) to prevent the objects placed on the platform from falling from the edge.

The height of the stop structure is often difficult to determine. When the height of the stop structure is too low, the sufficient stop effect cannot be fully exerted, and objects may still fall over the stop structure. When the height of the blocking structure is too high, a prominent protrusion is formed on the upper surface of the platform, which is not conducive to carrying and storing the platform.

Therefore, how to improve the arrangement of the blocking structure has become an important technical issue.

In order to solve the problems in the prior art, the present invention provides a telescopic stop device and a carrying device with a stop function. The telescopic stop device includes a base, a double-push telescopic mechanism, a stroke amplification mechanism, a limit mechanism and a baffle. The double-push telescopic mechanism includes a buckle seat and a telescopic push rod. The buckle seat is arranged on the base, and the telescopic push rod is arranged on the buckle seat along a stretching direction. The telescopic push rod is used to be repeatedly pressed along the telescopic direction to move between the release position and the fixed position, and to lift between the fixed position and the released position. for the original itinerary. The stroke amplifying mechanism has multiple pairs of cross-connected connecting rods, and the multiple pairs of cross-connected connecting rods are sequentially connected to provide a sequentially arranged bottom end, connecting portion and top end. The bottom end is slidably arranged on the buckle seat, the top end is connected to the telescopic push rod, the connection part is connected to the telescopic push rod, and the top end is used to generate an enlarged stroke along the telescopic direction when the telescopic push rod provides the original stroke. The limiting mechanism is arranged on the base to limit the moving direction parallel to the telescopic direction. The baffle is movably arranged on the limit mechanism, and is limited by the moving direction to move parallel to the stretching direction; wherein, the top end of the stroke amplification mechanism is connected to the baffle.

In at least one embodiment, the baffle includes a sliding plate and a top plate; the sliding plate is movably disposed on the limiting mechanism, and the top plate is disposed on a side of the sliding plate away from the base.

In at least one embodiment, the limiting mechanism includes a sleeve set, one end of which is fixed to the base, and the other end is sheathed on the baffle plate, and the travel amplification mechanism passes through the sleeve set.

In at least one embodiment, the limiting mechanism includes a fixed sleeve and at least one telescopic sleeve, the fixed sleeve is fixed on the base, sleeved on the telescopic sleeve, and the telescopic sleeve is sleeved on the sliding plate.

In at least one embodiment, at least one guide block is provided on the surface of the sliding plate, and at least one guide groove extending parallel to the telescopic direction is arranged inside the telescopic sleeve, the guide block slides in the guide groove, and the guide groove A stopper is provided at the end to stop the guide block from breaking away from the guide groove.

In at least one embodiment, the stroke amplification mechanism is installed in the sliding plate, the fixed sleeve and the telescopic sleeve.

In at least one embodiment, the top end is the cross connection point of a pair of connecting rods located at the top of the stroke amplification mechanism, the connecting portion is the cross connection point of a pair of connecting rods located in the middle section of the stroke amplification mechanism, and the bottom end is located at the stroke amplification mechanism. The two free ends of a pair of connecting rods at the bottom of the mechanism are slidably connected to the buckle seat.

In at least one embodiment, the top end is a cross connection point of a pair of connecting rods located at the top of the stroke amplification mechanism, the connecting portion is a cross connection point of a pair of connecting rods located in the middle section of the stroke amplification mechanism, and the bottom end is The cross connection point of a pair of connecting rods located at the bottom of the stroke amplification mechanism is rotatably connected to the buckle seat.

In at least one embodiment, a sliding rod is respectively arranged on the two free ends, and two sliding grooves are arranged on the buckle seat, the two sliding grooves are perpendicular to the stretching direction, and each sliding rod slides in each sliding groove respectively.

In at least one embodiment, the retractable stop device further includes an adapter, which has a first connecting piece and a second connecting piece, the first connecting piece is connected to the connecting portion, the second connecting piece extends the first connecting piece, And connected to the telescopic push rod.

In at least one embodiment, the double-push telescopic mechanism is a rotary engagement double-push mechanism, wherein the buckle seat has a set of holes, and there are a plurality of engagement grooves arranged at intervals in the sleeve holes, and these engagement grooves are parallel to the telescopic direction, and has an opening facing the base; the telescopic push rod includes a first rotating snap-fit piece, a second swivel snap-fit piece and a reset piece, which are arranged in the sleeve hole. Wherein, the first rotating joint protrudes from the buckle seat to be connected to the connecting part, the first rotating joint is rotatably engaged with the second rotating joint, and the reset part is pushed against between the second rotating joint and the base; the second A sliding block is protruded from the peripheral surface of the rotary joint, and the first rotary joint is used to be pressed to drive the second rotary joint to rotate, so that the sliding block is engaged between the adjacent engaging grooves or embedded in these One of the Kahegou.

In at least one embodiment, the reset member is a compression spring, which is sheathed on the second rotating engaging member.

The invention also provides a carrying device with a blocking function for placing objects thereon. The carrying device includes a platform and the aforementioned retractable stopper. The platform has a top surface and a bottom surface. And a bottom edge of the platform is provided with a perforation to communicate with the top surface and the bottom surface. The telescopic stop device is arranged on the bottom surface, The base is configured corresponding to the bottom edge, and the stroke amplification mechanism, the limit mechanism and the baffle can pass through the perforation; wherein, when the baffle is in a protruding state, at least a part of the baffle protrudes from the top surface.

In at least one embodiment, the carrying device with a blocking function further includes a stand disposed on the bottom surface of the platform.

The retractable blocking device of the present invention can make the baffle change between the protruding state and the storage state by simply pressing. In addition, through the configuration of the stroke enlargement mechanism, it can ensure that the baffle has a sufficient moving stroke and has a more significant or appropriate protruding height, so as to achieve the required blocking effect.

1: telescopic stop device

2: heat sink

100: base

110: locking seat

200: double push telescopic mechanism

210: buckle seat

212: Chute

214: set hole

216: Snap groove

216a: opening

220: telescopic push rod

221: the first rotary articulator

222: the second rotary articulator

222a: Slide block

223: Reset

300: stroke amplification mechanism

301: connecting rod

310: Bottom

312: Slider

320: connection part

330: top

400: limit mechanism

410: fixed sleeve

413: window

420: telescopic sleeve

421: guide groove

422: stop part

500: Baffle

510: slide plate

511: guide block

520: top plate

600: Adapter

610: the first connecting piece

620: the second connecting piece

700: platform

700a: top surface

700b: bottom surface

710: bottom edge

712: perforation

800: tripod

Y: stretching direction

D1: Original itinerary

D2: Enlarge stroke

F: fixed position

R: release position

[ Fig. 1 ] is a perspective view of a telescopic stopper device according to an embodiment of the present invention.

[ Fig. 2 ] is another perspective view of the telescopic stop device according to the embodiment of the present invention.

[ Fig. 3 ] is an exploded view of the telescopic stopper according to the embodiment of the present invention.

[ Fig. 4 ] is another exploded view of the telescopic stop device according to the embodiment of the present invention.

[Fig. 5] It is a rear view of the inside of the retractable stopper with some components removed.

[Fig. 6] Another rear view of the inside of the retractable stopper with some components removed.

[ Fig. 7 ] is a three-dimensional schematic view of the baffle plate and the telescopic sleeve in the telescopic stop device according to the embodiment of the present invention.

[ Fig. 8 ] is a three-dimensional cross-sectional view of a double-push telescoping mechanism in the telescopic stop device according to the embodiment of the present invention.

[ Fig. 9 ] is another three-dimensional cross-sectional view of the double-push telescoping mechanism in the telescoping stop device according to the embodiment of the present invention.

[ Fig. 10 ] is a side view of a heat sink according to an embodiment of the present invention.

[ Fig. 11 ] It is another side view of the heat sink according to the embodiment of the present invention.

Please refer to FIG. 1 and FIG. 2 , which is a telescopic stop device 1 proposed by an embodiment of the present invention, which is used to be installed on the bottom edge of an inclined platform to form a carrying device with a stop function. The carrying device can place objects on the platform and stop the objects placed on the platform, so as to prevent the objects set on the platform from slipping. For example, the retractable stop device 1 of the present invention can be applied to a carrying seat or a cooling seat of a portable electronic device such as a notebook computer to form a carrying device with a stop function, and the retractable stop device 1 is used for As a concealable push pop-up flap.

As shown in FIG. 3 and FIG. 4 , the telescopic stop device 1 of the present invention includes a base 100 , a double-push telescopic mechanism 200 , a stroke amplification mechanism 300 , a limit mechanism 400 and a baffle 500 .

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , the base 100 is generally a plate structure, and is configured with connecting structures such as a locking seat 110 . The locking seat 110 is used for passing bolts to fix the limiting mechanism 400 to the base 100 . The base 100 is used as a base for installation of other components. The push-push button mechanism 200 includes a button seat 210 and a telescopic push rod 220 . The buckle seat 210 is disposed on the base 100 , and the telescopic push rod 220 is disposed on the buckle seat 210 along a telescopic direction Y.

As shown in FIG. 5 and FIG. 6 , a push-push latch mechanism is provided in the buckle seat 210, and the double-push latch mechanism is used to hold the telescopic push rod 220 after the telescopic push rod 220 is pressed. , or release and push against the telescopic push rod 220 to protrude after the telescopic push rod 220 is pressed again. Therefore, the telescopic push rod 220 is repeatedly pressed along the telescopic direction Y to move between a protruding release position R and a retracted fixed position. F, and provide an original stroke D1 between the fixed position F and the release position R. The original stroke D1 is arranged along the stretching direction Y.

As shown in FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , the stroke amplification mechanism 300 may be a scissors linkage. The stroke amplification mechanism 300 has multiple pairs of cross-connected links 301, and the multiple pairs of cross-connected links 301 are connected in sequence. A plurality of pairs of cross-connected connecting rods 301 provide a bottom end 310 , a connecting portion 320 and a top end 330 arranged in sequence. The bottom end 310 is movably connected to the buckle 210 , the top end 330 is connected to the telescopic push rod 220 , and the connecting portion 320 is connected to the telescopic push rod 220 . The top end 330 may be a cross-connection point of a pair of connecting rods 301 located at the top of the stroke amplification mechanism 300 . The connecting portion 320 is a cross connection point of a pair of connecting rods 301 located in the middle section of the stroke amplification mechanism 300 . The bottom end 310 can be the two free ends of a pair of connecting rods 301 located at the bottom of the stroke amplification mechanism 300, and can be slidably connected to the buckle seat 210; The cross connection point is rotatably connected to the buckle seat 210 . When the bottom end 310 is slidably connected to the buckle seat 210 with two free ends, a sliding bar 312 is respectively arranged on the two free ends, and two slide grooves 212 are arranged on the buckle seat 210 . The two sliding slots 212 are perpendicular to the telescopic direction Y, and each sliding rod 312 slides in each sliding slot 212 respectively, and the two free ends will not move along the telescopic direction Y.

As shown in FIG. 5 and FIG. 6 , when the telescopic push rod 220 provides the original stroke D1 , the top end 330 generates an enlarged stroke D2 along the telescopic direction Y. Specifically, when the telescopic push rod 220 moves toward the release position R to provide the original stroke D1, the connecting portion 320 is driven by the telescopic push rod 220 to move the original stroke D1 in the same direction. Through the actuation of the stroke enlargement mechanism 300 , the top end 330 generates an enlarged stroke D2 in the same direction relative to the buckle seat 210 along the stretching direction Y. On the contrary, when the top end 330 is pressed along the telescopic direction Y and reversely moves toward the base 100 to enlarge the stroke D2, the stroke enlargement mechanism 300 acts in reverse, so that the connecting part 320 drives the telescopic push rod 220 to move toward the base 100 reversely. The original stroke D1, so that the telescopic push rod 220 is buckled at the fixed position by the buckle seat 210 Set F. When the logarithm of the connecting rods 301 between the bottom end 310 and the connecting portion 320 is more, the enlargement ratio of the enlarged stroke D2 relative to the original stroke D1 is larger.

As shown in Figure 5 and Figure 6, when the connecting part 320 is driven by the telescopic push rod 220 to move outwards to the original stroke D1, the two free ends are constrained by the sliding rod 312 and the chute 212, and do not move in the telescopic direction Y, but The free ends are close to each other along the extending direction of the chute 212; that is, the bottom end 310 is fixed in the telescopic direction Y, but the two free ends can slide perpendicular to the telescopic direction Y, so that the opening between multiple pairs of cross-connected connecting rods 301 Closing movements are not restricted. At this time, by virtue of the stroke amplification effect provided by the multiple pairs of cross-connected connecting rods 301 , the moving stroke of the tip 330 will be enlarged to the enlarged stroke D2. Conversely, when the top end 330 is pressed and the top end 330 is reversely driven to move the enlarged stroke D2, the two free ends move away from each other along the extending direction of the chute 212, so that the connecting part 320 can drive the telescopic push rod 220 to reversely move the original Trip D1.

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , the telescopic stop device 1 further includes an adapter 600 for connecting the telescopic push rod 220 and the connecting portion 320 . The adapter 600 has a first connecting piece 610 and a second connecting piece 620 . The first connecting piece 610 is connected to the connecting portion 320 , the second connecting piece 620 extends the first connecting piece 610 to form the adapter 600 into an L-shaped piece, and the second connecting piece 620 is connected to the telescopic push rod 220 .

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , the limiting mechanism 400 is disposed on the base 100 to provide a movement limit parallel to the telescopic direction Y. The baffle 500 is movably disposed on the limiting mechanism 400 , and is limited by the moving direction to move parallel to the stretching direction Y. The top end 330 of the stroke amplifying mechanism 300 is connected to the baffle 500 , so that the telescopic push rod 220 is indirectly connected to the baffle 500 through the stroke amplifying mechanism 300 , thereby providing the enlarged stroke D2 to the baffle 500 .

As shown in FIG. 1 , FIG. 2 , FIG. 3 and FIG. 4 , the baffle plate 500 includes a sliding plate 510 and a top plate 520 . The sliding plate 510 is movably disposed on the limiting mechanism 400 , and the top end 330 is connected to the sliding plate 510 . The top board 520 is disposed on a side of the sliding board 510 away from the base 100 . Specifically, the limit mechanism 400 includes a Socket set. One end of the sleeve set is fixed to the base 100 , and the other end is sheathed on the sliding plate 510 of the baffle 500 , and the stroke amplification mechanism 300 passes through the sleeve set. The sleeve set is used for expanding and contracting along the telescopic direction Y, so as to provide a movement direction restriction parallel to the telescopic direction Y.

More specifically, the limiting mechanism 400 includes a fixed sleeve 410 and one or more telescopic sleeves 420 . The fixing sleeve 410 is fixed on the base 100 and sleeved on the telescopic sleeve 420 . The stroke amplification mechanism 300 is installed in the sliding plate 510 , the fixed sleeve 410 and the telescopic sleeve 420 . The telescopic sleeve 420 can move relative to the fixed sleeve 410 to achieve expansion and contraction parallel to the telescopic direction Y, so as to limit the moving direction. The telescopic sleeve 420 is sheathed on the sliding plate 510 of the baffle 500 , so that the sliding plate 510 of the baffle 500 can slide or move in unison with respect to the telescopic sleeve 420 , thereby restricting the moving direction of the baffle 500 .

As shown in FIG. 7 , at least one guide block 511 is provided on the surface of the sliding plate 510 , and at least one guide groove 421 extending parallel to the telescopic direction Y is provided inside the at least one telescopic sleeve 420 . The guiding block 511 slides in the guiding groove 421 , and a stop portion 422 is disposed at an end of the guiding groove 421 . The stop portion 422 is used to stop the guide block 511 to prevent the guide block 511 from disengaging from the guide groove 421 , so as to prevent the baffle plate 500 from disengaging from the telescopic sleeve 420 .

As shown in FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , in addition, the stroke amplification mechanism 300 passes through the sliding plate 510 , the fixed sleeve 410 and at least one telescopic sleeve 420 . The top end 330 is connected to the sliding plate 510 inside the sliding plate 510 . A window 413 is defined on a side of the fixing sleeve 410 facing the double-push retractable mechanism 200 for the sliding rod 312 to pass through to be inserted into the corresponding slide slot 212 .

As shown in FIG. 8 and FIG. 9 , a specific embodiment of the double-push telescopic mechanism 200 is a rotating and engaging double-push mechanism, but other forms of the double-push telescopic mechanism 200 are not excluded. In the rotary engagement double-push mechanism, the buckle seat 210 has a set of holes 214, and the set of holes 214 has a plurality of engagement grooves 216 arranged at intervals. The engaging grooves 216 are parallel to the telescopic direction Y and have an opening 216 a facing the base 100 . Telescopic push rod 220 It includes a first rotating joint 221 , a second rotating joint 222 and a reset member 223 , which are disposed in the sleeve hole 214 . The first rotating fitting 221 protrudes from the buckle seat 210 to be connected to the connecting portion 320 , and the first rotating fitting 221 is rotatably engaged with the second rotating fitting 222 . The reset member 223 is a compression spring, sheathed on the second rotating engagement member 222 , and the reset member 223 resists between the second rotating engaging member 222 and the base 100 to provide an outward thrust to the second rotating engaging member 222 . A sliding block 222a protrudes from the peripheral surface of the second rotating snap-fit part 222, and the first rotating snap-fit part 221 is used to be pressed to drive the second rotating snap-fit part 222 to rotate, so that the sliding block 222a is engaged with the adjacent snaps. One of the engaging grooves 216 is inserted between the grooves 216 to fix the second rotating fastener 222 at the release position or the fixed position, so as to drive the first rotating fastener 221 to protrude or retract.

As shown in FIG. 1 , FIG. 2 , FIG. 5 and FIG. 6 , in a general embodiment of the present invention, the top plate 520 can be pressed to drive the stroke amplification mechanism 300 to operate. When the baffle 500 protrudes, the top plate 520 is pressed to move toward the base 100 , and the driving tip 330 moves a stroke slightly larger than the enlarged stroke D2 , so that the connecting portion 320 moves slightly larger than the original stroke D1 . At this time, the telescopic push rod 220 retracts into the buckle seat 210, and is further buckled by the buckle seat 210 to be at a fixed position. When the top plate 520 is pressed again, the buckle 210 releases the telescopic push rod 220 and the reset member 223 pushes the telescopic push rod 220 to move the original stroke D1 to protrude to the release position. At this time, the connecting part 320 is driven by the original stroke D1, so that the top end 330 moves outward by the enlarged stroke D2, thereby driving the baffle plate 500 to protrude. Therefore, the baffle plate 500 can be changed between the protruding state and the storage state through repeated pressing of the top plate 520 .

As shown in FIG. 10 and FIG. 11 , the embodiment of the present invention also proposes a carrying device with a blocking function. In a specific embodiment, the carrying device with a blocking function can be a carrying seat or a cooling seat 2 for a notebook computer. Taking the heat sink 2 as an illustration, it includes a platform 700 and a stand 800 . The platform 700 has a top surface 700a and a bottom surface 700b. The tripod 800 is arranged on the bottom surface 700b of the platform 700, so as to make the platform The stage 700 may be arranged inclined to the horizontal plane. The bottom edge 710 of the platform 700 defines a through hole 712 . The base 100 of the retractable stop device 1 is disposed on the bottom surface 700 b of the platform 700 , the base 100 is configured corresponding to the bottom edge 710 , and the stroke amplification mechanism 300 , the limit mechanism 400 and the baffle plate 500 can pass through the through hole 712 . When the baffle 500 is in the protruding state, at least a part of the baffle 500 is protruding from the top surface 700a of the platform 700, so as to provide a blocking effect at the bottom edge 710 of the platform 700, preventing objects placed on the top surface 700a of the platform 700 ( For example, a notebook computer or other portable electronic devices or portable products) slide down from the bottom edge 710 . When the baffle plate 500 is in the storage state, the sliding plate 510, the limit mechanism 400 and the stroke amplification mechanism 300 retract below the top surface 700a, and the top plate 520 can just cover the perforation 712 on the top surface 700a, so as to maintain the flatness of the top surface 700a . As mentioned above, as long as the top plate 520 is pressed, the baffle plate 500 can be changed between the protruding state and the storage state. It should be noted that the stretching direction Y of the baffle 500 is not necessarily perpendicular to the top surface 700a of the platform, but may have an included angle. Therefore, the top plate 520 and the base are not necessarily perpendicular to the telescopic direction Y, but can have a certain inclination angle to match the top surface 700 a and the bottom surface 700 b of the platform 700 .

The retractable stop device 1 and the carrying device with stop function of the present invention can change the baffle plate 500 between the protruding state and the storage state by simply pressing. In addition, through the configuration of the stroke enlargement mechanism 300 , it can be ensured that the baffle plate 500 has a sufficient moving stroke and has a significant or appropriate protruding height, so as to achieve the required blocking effect.

What is described above is only a preferred embodiment of the present invention, and is not used to limit the scope of the present invention, that is, all equal changes and changes made according to the shape, structure, characteristics and spirit described in the patent scope of the present invention Modifications should be included in the patent application scope of the present invention.

210: buckle seat

212: Chute

220: telescopic push rod

300: stroke amplification mechanism

301: connecting rod

310: Bottom

312: Slider

320: connection part

330: top

510: slide plate

520: top plate

Y: stretching direction

D1: Original itinerary

D2: Enlarge stroke

F: fixed position

R: release position

Claims (14)

A telescopic stop device, comprising: a base; a double-push telescopic mechanism, including a buckle seat and a telescopic push rod; the buckle seat is arranged on the base, and the telescopic push rod is arranged on the Buckle seat, the telescopic push rod is used to be repeatedly pressed along the telescopic direction to move between a release position and a fixed position, and an original stroke is provided between the fixed position and the release position; a stroke amplification mechanism has multiple A pair of cross-connected connecting rods, and the multiple pairs of cross-connected connecting rods are sequentially connected to provide a bottom end, a connecting portion and a top end arranged in sequence; wherein the bottom end is movably configured on the buckle seat, the The top end is connected to the telescopic push rod, the connection part is connected to the telescopic push rod, and the top is used to generate an enlarged stroke along the telescopic direction when the telescopic push rod provides the original stroke; a limit mechanism is arranged on On the base, a movement direction limit parallel to the telescopic direction is provided; and a baffle plate is movably arranged on the limit mechanism, which accepts the movement direction restriction to move parallel to the telescopic direction; wherein, the stroke The top end of the amplification mechanism is connected to the baffle. The retractable stop device according to claim 1, wherein the baffle includes a sliding plate and a top plate; the sliding plate is movably arranged on the limit mechanism, and the top plate is arranged at a position where the sliding plate is away from the base side. The retractable stop device according to claim 1, wherein the limit mechanism includes a sleeve set, one end of which is fixed to the base, and the other end is sleeved on the baffle, and the stroke amplification mechanism is passed through the in the sleeve set. The telescopic stop device as claimed in claim 1, wherein the limit mechanism includes a fixed sleeve and at least one telescopic sleeve, the fixed sleeve is fixed on the base and sleeved on the at least one telescopic sleeve, And the at least one telescopic sleeve is sleeved on the baffle. The retractable stop device according to claim 4, wherein the baffle includes a sliding plate, which is movably arranged on the limit mechanism, and at least one guide block is provided on the surface of the sliding plate, and the at least A telescopic sleeve is provided with at least one guide groove extending parallel to the telescopic direction, the at least one guide block slides in the at least one guide groove, and a stopper is provided at the end of the at least one guide groove to stop prevent the at least one guide block from breaking away from the at least one guide groove. The telescopic stop device as claimed in claim 4, wherein, the stroke amplification mechanism passes through the fixed sleeve and the at least one telescopic sleeve. The telescopic stop device according to claim 1, wherein the top end is a cross connection point of a pair of connecting rods located at the top of the stroke amplification mechanism, and the connecting portion is one of the pair of connecting rods located in the middle section of the stroke amplification mechanism. The cross connection point of the connecting rod, the bottom end is the two free ends of a pair of connecting rods located at the bottom of the stroke amplification mechanism, and the two free ends are slidably connected to the buckle seat. The telescopic stop device according to claim 1, wherein the top end is a cross connection point of a pair of connecting rods located at the top of the stroke amplification mechanism, and the connecting portion is one of the pair of connecting rods located in the middle section of the stroke amplification mechanism. The cross connection point of the connecting rod, the bottom end is the cross connection point of a pair of connecting rods located at the bottom of the stroke amplification mechanism, and is rotatably connected to the buckle seat. The telescopic stop device as described in Claim 8, wherein the bottom end is the two free ends of a pair of connecting rods located at the bottom of the stroke amplification mechanism, and a sliding rod is respectively arranged on the two free ends, and the buckle Two slide grooves are arranged on the seat, and the two slide grooves are perpendicular to the telescopic direction, and each of the slide bars slides in each of the slide grooves. The telescopic stop device as described in claim 1 further includes an adapter, the adapter has a first connecting piece and a second connecting piece, the first connecting piece is connected to the connecting portion, the second connecting piece The connecting piece extends the first connecting piece and is connected to the telescopic push rod. The retractable stop device as claimed in item 1, wherein the double-push telescopic mechanism is a rotary engagement double-push mechanism, wherein the buckle seat has a set of holes, and there are multiple holes arranged at intervals in the set of holes. A locking groove, these locking grooves are parallel to the telescopic direction, and have an opening toward the base; the telescopic push rod includes a first rotating snapping piece, a second rotating snapping piece and a reset piece, arranged on the The sleeve hole, wherein, the first rotating fitting protrudes from the buckle seat to be connected to the connecting part, the first rotating fitting is rotatably engaged with the second rotating fitting, and the reset member is pressed against the second rotating Between the engaging piece and the base; a sliding block protrudes from the peripheral surface of the second rotating engaging piece, and the first rotating engaging piece is used to be pressed to drive the second rotating engaging piece to rotate so that the sliding block engages Between the adjacent engaging grooves or embedded in one of the engaging grooves. The retractable stop device as claimed in claim 11, wherein the reset member is a compression spring and is sheathed on the second rotating engaging member. A carrying device with a blocking function, comprising: a platform with a top surface and a bottom surface, and a bottom edge of the platform is provided with a perforation to communicate with the top surface and the bottom surface; and any one of claims 1 to 12 The telescopic stop device described in item 1 is arranged on the bottom surface, the base is configured corresponding to the bottom edge, and the stroke amplification mechanism, the limit mechanism and the baffle plate can pass through the through hole; wherein, when the baffle plate In the protruding state, at least a part of the baffle protrudes from the top surface. The carrying device with a blocking function as described in claim 13 further includes a tripod disposed on the bottom surface of the platform.

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