CN218762454U - Three cut built-in support of seat - Google Patents

Abstract

The utility model discloses a three cut built-in supports of seat, include: the body of rod, the inside of the body of rod is equipped with the lumen in the one end of the body of rod, is provided with three in the lumen and cuts the seat, and three cut the seat and distribute around its vertical central line circumference and stretch out the stabilizer blade subassembly outside the lumen, and the stabilizer blade subassembly can cut the seat downwards to rotate to the state of launching, perhaps cuts the seat to rotate to the state of accomodating of the periphery wall of converging in the body of rod relatively three relatively. The support of above structure will cut three and has realized three and cut seat and body of rod integration setting in placing the lumen in the seat in, reduces the material cost, has also reduced the spare part that is used for connecting three and cuts seat and the body of rod, simplifies the production equipment process, and three mode three that place the lumen in the seat of cutting can not follow the radial protrusion of the body of rod, and stabilizer blade subassembly adopts the mode of upwards folding, and consequently the size of the support after accomodating is less, portable and transportation.

Description

Three cut built-in support of seat

Technical Field

The utility model relates to a three cut built-in supports of seat.

Background

In the related art, a support for photographing or projecting includes a three-segment base, on which three legs are circumferentially distributed around a vertical center line of the three-segment base, and in order to erect a photographing apparatus or a projection apparatus, an upwardly extending rod is generally disposed above the three-segment base, and an upper end of the rod is connected to a pan/tilt head for mounting the photographing apparatus or the projection apparatus.

The connecting modes between the three cutting seats and the rod piece are mainly two, wherein one mode is that the rod piece is fixed by a fastener after penetrating through the central position of the three cutting seats, and the other mode is that the lower end of the rod piece is connected with the three cutting seats through a thread structure.

The above two connection methods have the following disadvantages: the mode that the rod piece penetrates through the center of the three cutting seats needs the radial size of the three cutting seats to be far larger than the diameter of the rod piece, the size of the folded and stored support is large, the support is inconvenient to transport and carry, and the rod piece and the three cutting seats need to be connected through corresponding fasteners.

When the mode that the lower extreme that adopts the member links to each other through helicitic texture between the seat and the three cutting, because the member adopts tubular product preparation to form usually, often need set up the mounting panel at the lower extreme of member, then utilize fastening screw to link to each other mounting panel and three cutting seat, just so lead to the equipment between three cutting seat and the member to need increase spare part, increase the equipment process, improve material cost and manufacturing cost, moreover, the joint strength who relies on fastening screw to link to each other three cutting seats and member is not enough, is difficult to bear great load.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a three cut built-in support of seat, the three seat of cutting of this support and the body of rod integration setting, reduction material cost and manufacturing cost.

According to the utility model discloses three cut built-in support of seat, include: the body of rod, the inside of the body of rod in the one end of the body of rod is equipped with the lumen, be provided with three in the lumen and cut the seat, three cut the seat and distribute around its vertical central line circumference have three stretch out in the stabilizer blade subassembly outside the lumen, the stabilizer blade subassembly can be relative three cut the seat and rotate downwards to the state of expansion, perhaps relative three cut the seat and rotate upwards to converge in the state of accomodating of the periphery wall of the body of rod.

According to the utility model discloses three cut built-in support of seat has following beneficial effect at least:

the support of above structure sets up the lumen at the tip of the body of rod, place the lumen in the seat with three cutting within, three leg assembly on cutting the seat stretches out outside the lumen, and leg assembly can rotate downwards to expansion state or upwards rotate to the state of accomodating, three mode of placing the lumen in cutting the seat in has realized three cutting seats and the body of rod integration setting, reduce the material cost, the spare part that is used for connecting three cutting seats and the body of rod has also been reduced, simplify the production equipment process, and three cutting seats can not follow the radial protrusion of the body of rod, leg assembly adopts the mode of upwards folding accomodating, consequently, the size of folding support after accomodating is less, and convenient to carry and transportation.

In some embodiments of the utility model, the stabilizer blade subassembly including rotate set up in the connecting rod of the periphery of three cutting seats, the connecting rod can be relative three cutting seats rotate from top to bottom, the periphery wall of the body of rod is equipped with the intercommunication the lumen supplies connecting rod first breach groove of tilting from top to bottom, three bottom rotations of cutting the seat are provided with spacing carousel, spacing carousel has the confession the second breach groove that the connecting rod passed, spacing carousel can support by in the connecting rod so that the stabilizer blade subassembly is stable expansion state perhaps accomodate the state.

The utility model discloses an in some embodiments, the periphery wall of the body of rod is the face of cylinder, spacing carousel is located including rotating bottom plate on three cutting seats's the bottom surface with locate the bottom plate just hug closely in the arc deflector of face of cylinder, second breach groove includes the edge the length direction of the body of rod sets up in the vertical groove of arc deflector and locating the bottom plate just communicates the arc wall of vertical groove, the connecting rod can be followed vertical groove luffing motion and edge the arc wall is wound three cutting seats's vertical central line rotates.

The utility model discloses an in some embodiments, place in three cutting seats include in last connecting seat and the lower connecting seat of lumen, the upper end of connecting rod is equipped with pin joint portion, go up the connecting seat with the holding is injectd to connecting seat down the pin joint groove of pin joint portion, the upper surface butt of bottom plate in the lower surface of connecting seat, threaded fastener follows three vertical central lines that cut the seat wear to locate the bottom plate connecting seat down with go up the connecting seat, spacing carousel can wind threaded fastener rotates.

In some embodiments of the present invention, the outer wall of the three cutting seats is connected to the inner wall of the lumen through a rotary clamping structure.

In some embodiments of the utility model, rotatory joint structure is including locating the inner wall of lumen is followed the length direction of lumen extends the guide way and the constant head tank that set up, the constant head tank with the lateral part of guide way is linked together, the inner wall of lumen be equipped with the lateral part of guide way is linked together and winds the anticreep groove of the circumference setting of lumen, the outer wall that the seat was cut to three is equipped with first arch and second arch, first arch the second arch homoenergetic is followed the length direction reciprocating motion of guide way, first arch can be followed the guide way gets into the constant head tank is in order to prevent the seat is cut to three is relative the body of rod rotates, simultaneously, the second arch can be followed the guide way gets into the anticreep groove is in order to restrict the seat is cut to three is followed the length direction of the body of rod removes.

The utility model discloses an in some embodiments, first arch the second is protruding the guide way the constant head tank with the anticreep groove all is provided with a plurality ofly and quantity equals, and is a plurality of first arch and a plurality of the second arch winds three vertical central line circumference that cut the seat distribute in three cut the periphery wall of seat, the second arch with first protruding one-to-one, it is a plurality of the guide way and a plurality of the constant head tank winds the axis circumference of the body of rod distributes in the inner wall of lumen.

In some embodiments of the present invention, the rod body comprises an inner tube and an outer tube sleeved outside the inner tube, the inner tube can be moved in a telescopic manner along the length direction of the outer tube, the outer tube is provided with a telescopic locking structure between the inner tube, and the inner channel of the outer tube forms the tube cavity.

In some embodiments of the utility model, flexible locking structure including the protrusion set up in the third arch and the fourth arch of the outer wall of inner tube, the third arch the fourth arch homoenergetic can be followed the length direction reciprocating motion of guide way, the third arch can be followed the guide way gets into the constant head tank is in order to prevent the inner tube is relative the outer tube rotates, simultaneously, the fourth arch can be followed the guide way gets into the anticreep groove is in order to restrict the inner tube is relative the outer tube concertina movement.

The utility model discloses an in some embodiments, the other end of the body of rod is equipped with the mount pad, be equipped with spherical chamber in the mount pad, the activity of spherical intracavity is equipped with the spheroid, the spheroid activity wear to be equipped with can stretch out in spheroidal surface with the top tightly in the tight piece in top in spherical chamber, top tight piece is kept away from spheroidal one end is equipped with the threaded rod and supplies the mounting platform that the threaded rod was worn to establish.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an embodiment of a stent built in a three-cutting seat of the present invention in an expanded state;

FIG. 2 is a schematic diagram of a structure of the embodiment of FIG. 1 in which the rod, the three cutting bases, the connecting rod, and the limiting turntable are separated from each other;

fig. 3 is a schematic structural view of an embodiment of a support with a built-in three cutting seats according to the present invention in a storage state;

FIG. 4 is an internal cross-sectional view of the embodiment of FIG. 3;

FIG. 5 is a schematic diagram of the rod body with the inner tube and the outer tube separated from each other.

Reference numerals are as follows:

a rod body 100; an inner tube 110; an outer tube 120; a first notch groove 121;

a three-cutting seat 200; a connecting base 210; a connecting base 220; the second protrusion 211; a first protrusion 221;

a leg assembly 300; a connecting rod 310; a pivot portion 311;

a limit turntable 400; a bottom plate 401; an arc-shaped guide plate 402; a second cutaway groove 410; a vertical slot 411; arc-shaped slot 412

A threaded fastener 500;

a guide groove 610; a positioning groove 620; a drop-off prevention groove 630;

a telescopic locking structure 700; a third bump 710; a fourth protrusion 720;

a mount 810; a sphere 820; a top tightening member 830; a threaded rod 840; a mounting platform 850; a threaded post 860; a knob member 870.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the orientation description, such as the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the utility model discloses a three cut built-in support of seat includes: the body of rod 100, the inside of body of rod 100 is equipped with the lumen in the one end of body of rod 100, is provided with three in the lumen and cuts seat 200, and three are cut the seat 200 and distribute around its vertical central line circumference and stretch out the stabilizer blade subassembly 300 outside the lumen, and stabilizer blade subassembly 300 can cut the seat 200 to rotate downwards to the state of expansion relatively, or cut the seat 200 to rotate upwards to the state of accomodating of the periphery wall of converging in the body of rod 100 relatively three.

The support of above structure sets up the lumen at the tip of the body of rod 100, place the three in the lumen in cutting the seat 200, three leg assembly 300 on cutting the seat 200 stretches out outside the lumen, and leg assembly 300 can rotate downwards to the state of expanding or upwards rotate to accomodating the state, the mode of placing the lumen in three cutting the seat 200 in has realized three and has cut seat 200 and body of rod 100 integration setting, reduce the material cost, the spare part that is used for connecting three cutting the seat 200 and body of rod 100 has also been reduced, simplify the production equipment process, and three cutting the seat 200 can not follow the radial protrusion of the body of rod 100, leg assembly 300 adopts the mode of upwards folding accomodating, consequently, the size of the support after folding accomodating is less, and is convenient for carry and transport.

Referring to fig. 1 and 3, in some embodiments of the present invention, the leg assembly 300 includes a connecting rod 310 rotatably disposed at the periphery of the three-segment seat 200, the connecting rod 310 can rotate up and down relative to the three-segment seat 200, the peripheral wall of the rod body 100 is provided with a first notch groove 121 for communicating the lumen and allowing the connecting rod 310 to rotate up and down, the bottom of the three-segment seat 200 is rotatably provided with a limit turntable 400, the limit turntable 400 has a second notch groove 410 for the connecting rod 310 to pass through, and the limit turntable 400 can abut against the connecting rod 310 to stabilize the leg assembly 300 in the unfolding state or the storage state.

It can be understood that, referring to fig. 2, when the leg assembly 300 is rotated downward to unfold the stand, the link 310 swings downward from the upper end of the first notched groove 121 to be away from the lower end of the first notched groove 121, and then the link 310 enters the second notched groove 410, and after the link 310 swings downward to a certain angle, the limit dial 400 rotates to enable the link 310 to abut against the lower end of the limit dial 400, and the link 310 is maintained to abut against the lower end of the limit dial 400 by the weight of the rod body 100 and the photographing apparatus on the rod body 100, thereby stabilizing the leg assembly 300 in the unfolded state. Referring to fig. 2 and 3, when the leg assembly 300 is rotated upward to fold and store the stand, the limit dial 400 is rotated first to enable the link 310 to be separated upward from the second notched groove 410, and then the link 310 enters the first notched groove 121, and when the link 310 is swung upward until the leg assembly 300 contacts the outer surface of the rod body 100, the limit dial 400 is rotated to enable the upper end of the limit dial 400 to abut against the link 310, thereby stabilizing the leg assembly 300 in the above-mentioned stored state.

Referring to fig. 1, 2 and 4, in some embodiments of the present invention, the outer peripheral wall of the rod body 100 is a cylindrical surface, the limit turntable 400 includes a bottom plate 401 rotatably disposed on the bottom surface of the three-segment seat 200 and an arc-shaped guide plate 402 disposed on the bottom plate 401 and closely attached to the cylindrical surface, the second notch groove 410 includes a vertical groove 411 disposed on the arc-shaped guide plate 402 along the length direction of the rod body 100 and an arc-shaped groove 412 disposed on the bottom plate 401 and communicating with the vertical groove 411, and the connecting rod 310 can swing up and down along the vertical groove 411 and rotate around the vertical center line of the three-segment seat 200 along the arc-shaped groove 412.

Wherein, the arc-shaped guide plate 402 is in accordance with the curvature of the cylindrical surface, it can be understood that, when the limit turntable 400 rotates on the three-cutting seat 200, the arc-shaped guide plate 402 rotates around the cylindrical surface, which guides the rotation of the limit turntable 400.

The directions of the first notched groove 121 and the vertical groove 411 are consistent, when the limit turntable 400 rotates until the vertical groove 411 is aligned with the first notched groove 121, the connecting rod 310 can freely swing up and down, and after the connecting rod 310 enters the vertical groove 411 and swings down to a certain angle, the limit turntable 400 rotates to enable the connecting rod 310 to enter the arc-shaped groove 412, so as to limit the angular position of the leg assembly 300.

Referring to fig. 3, in some embodiments of the present invention, in order to make the leg assembly 300 folded upward to be able to tightly attach to the rod body 100 for carrying and transportation, the rod body 100 is cylindrical, the leg assembly 300 has an arc plate matching with the outer peripheral wall of the rod body 100, and when the leg assembly 300 is rotated upward, the concave surface of the arc plate is attached to the outer peripheral wall of the rod body 100.

Referring to fig. 2, in some embodiments of the present invention, the three-cutting seat 200 includes an upper connecting seat 210 and a lower connecting seat 220 placed in the pipe cavity, the upper end of the connecting rod 310 is provided with a pivot portion 311, the upper connecting seat 210 and the lower connecting seat 220 define a pivot groove for accommodating the pivot portion 311, the upper surface of the bottom plate 401 abuts against the lower surface of the lower connecting seat 220, the threaded fastener 500 penetrates through the bottom plate 401, the lower connecting seat 220 and the upper connecting seat 210 along the vertical center line of the three-cutting seat 200, and the limit turntable 400 can rotate around the threaded fastener 500.

Specifically, the upper connecting seat 210 and the lower connecting seat 220 are respectively provided with a semi-cylindrical groove, the pivoting part 311 is placed in one groove during assembly, the other groove is aligned with the pivoting part 311, and then the upper connecting seat 210 and the lower connecting seat 220 are fixed, and moreover, the bottom plate 401, the lower connecting seat 220 and the upper connecting seat 210 can realize the functions of fixing the upper connecting seat 210 and the lower connecting seat 220 and rotating the limiting turntable 400 relative to the three-cutting seat 200 through a threaded fastener 500, and the three-cutting seat is simple in structure, small in number of parts and convenient to produce and assemble.

In some embodiments of the present invention, in order to install the three-cutting seat 200 within the lumen of the rod body 100 quickly and stably, the outer wall of the three-cutting seat 200 is connected to the inner wall of the lumen by a rotary clamping structure. Of course, in other embodiments, the tri-cutting seat 200 may be installed in the lumen by adhesive fixation.

Referring to fig. 2, in some embodiments of the present invention, the rotary clamping structure includes a guide groove 610 and a positioning groove 620 which are disposed on an inner wall of the tube cavity and extend along a length direction of the tube cavity, the positioning groove 620 is communicated with a side portion of the guide groove 610, the inner wall of the tube cavity is provided with a separation-preventing groove 630 which is communicated with the side portion of the guide groove 610 and is arranged around a circumference of the tube cavity, the outer wall of the three-cutting seat 200 is provided with a first protrusion 221 and a second protrusion 211, the first protrusion 221 and the second protrusion 211 can both reciprocate along the length direction of the guide groove 610, the first protrusion 221 can enter the positioning groove 620 from the guide groove 610 to prevent the three-cutting seat 200 from rotating relative to the rod body 100, and meanwhile, the second protrusion 211 can enter the separation-preventing groove 630 from the guide groove 610 to limit the three-cutting seat 200 from moving along the length direction of the rod body 100.

When the third saddle 200 is assembled, the first protrusion 221 and the second protrusion 211 are inserted along the guide groove 610, and after the third saddle 200 is inserted to a predetermined depth, the third saddle 200 and the rod 100 are driven to rotate relatively, the first protrusion 221 enters the positioning groove 620 from the guide groove 610 to limit the rotation of the third saddle 200 relative to the rod 100, and at the same time, the second protrusion 211 enters the anti-falling groove 630 from the guide groove 610 to prevent the third saddle 200 from falling off along the length direction of the rod 100, so that the third saddle 200 is stably installed inside the lumen.

The groove depth of the anti-slip groove 630 is slightly smaller than that of the guide groove 610, the groove depth of the anti-slip groove 630 is larger than that of the positioning groove 620, and accordingly, the radial protrusion size of the second protrusion 211 along the three-cutting seat 200 is larger than that of the first protrusion 221 along the three-cutting seat 200, so that the second protrusion 211 cannot jump into the positioning groove 620 along the length direction of the rod body 100 when being located in the anti-slip groove 630.

Referring to fig. 2, in some embodiments, in order to prevent the triple-cut holder 200 from being displaced from the rod body 100 in the radial direction, to further improve the stability of the triple-cut holder 200 mounted on the rod body 100 and ensure the safety of the photographic equipment, the groove depth of the positioning groove 620 is smaller than that of the guiding groove 610, and the first protrusion 221 can be tightly fitted with the groove bottom of the positioning groove 620.

When the first protrusion 221 and the second protrusion 211 are located in the guide slot 610, neither the first protrusion 221 nor the second protrusion 211 abuts against the bottom of the guide slot 610, so that both the first protrusion 221 and the second protrusion 211 can slide freely in the guide slot 610, so as to insert the third cutting base 200 into the tube cavity, and when the rod body 100 rotates relative to the third cutting base 200 and the first protrusion 221 enters the positioning slot 620, the first protrusion 221 and the bottom of the positioning slot 620 are tightly fitted to prevent the third cutting base 200 and the rod body 100 from loosening.

Referring to fig. 2, in some embodiments of the present invention, the first protrusion 221, the second protrusion 211, the guiding groove 610, the positioning groove 620 and the anti-drop groove 630 are all provided with a plurality of protrusions and equal in number, the plurality of first protrusions 221 and the plurality of second protrusions 211 are circumferentially distributed on the outer peripheral wall of the three cutting seats 200 around the vertical central line of the three cutting seats 200, the second protrusions 211 are in one-to-one correspondence with the first protrusions 221, and the plurality of guiding grooves 610 and the plurality of positioning grooves 620 are circumferentially distributed on the inner wall of the lumen around the axis of the rod body 100. The above structure is advantageous for improving the connection strength between the triple-cutting seat 200 and the rod body 100.

Referring to fig. 5, in some embodiments of the present invention, the rod body 100 includes an inner tube 110 and an outer tube 120 covering the inner tube 110, the inner tube 110 can move telescopically along the length direction of the outer tube 120, a telescopic locking structure 700 is disposed between the outer tube 120 and the inner tube 110, and the inner channel of the outer tube 120 forms a tube cavity. The telescopic function of the rod body 100 is realized through the structure, so that the function of adjusting the height position of the photographic equipment on the rod body 100 is achieved.

Referring to fig. 5, in some embodiments of the present invention, the retractable locking structure 700 includes a third protrusion 710 and a fourth protrusion 720 protruding from the outer wall of the inner tube 110, the third protrusion 710 and the fourth protrusion 720 can both move back and forth along the length direction of the guide slot 610, the third protrusion 710 can enter the positioning slot 620 from the guide slot 610 to prevent the inner tube 110 from rotating relative to the outer tube 120, and meanwhile, the fourth protrusion 720 can enter the anti-slip slot 630 from the guide slot 610 to limit the inner tube 110 from moving back and forth relative to the outer tube 120.

By adopting the telescopic locking structure 700, the guide groove 610 and the positioning groove 620 can be used for installing the three-cutting seat 200 and also can be used for telescopically adjusting the length size of the rod body 100, and the complicated telescopic locking structure 700 is not required to be additionally configured, so that the structure of the support is facilitated to be simplified. Of course, in other embodiments, the telescopic locking structure 700 may also be replaced by a knob sleeve sleeved outside the inner tube 110 and the outer tube 120, the inner tube 110 and the outer tube 120 may be locked by rotating the knob sleeve, or the inner tube 110 and the outer tube 120 may freely move telescopically by rotating the knob sleeve, which is a conventional component of a telescopic tube and will not be further described herein.

Referring to fig. 5, in some embodiments, the inner tube 110 is mounted with a circular arc plate on the outer surface of the inner tube 110, and the third protrusion 710 and the fourth protrusion 720 are both disposed on the circular arc plate. It can be understood that the arc plate and the inner peripheral wall of the outer tube 120 are mutually attached to each other to play roles of rotary guiding and telescopic guiding, and the split arrangement of the arc plate and the inner tube 110 is favorable for processing and forming the third protrusion 710 and the fourth protrusion 720, so that the size precision of the third protrusion 710 and the fourth protrusion 720 can be conveniently controlled, and the production and processing difficulty can be reduced.

Further, for the installation problem between solution circular arc board and the inner tube 110, in some embodiments, the pipe wall circumference of inner tube 110 is provided with a plurality of first draw-in grooves, is equipped with the first joint portion that can inlay the dress in first draw-in groove on the circular arc board. The first clamping portion and the first clamping groove are combined to achieve convenient assembly between the arc plate and the inner pipe 110.

In this embodiment, the third protrusion 710, the fourth protrusion 720 and the arc plate are an integral injection molding structure, so as to further simplify the processing flow. In other embodiments, the third protrusion 710, the fourth protrusion 720 and the circular arc plate may also be a unitary metal structure.

Referring to fig. 1 and 4, in some embodiments of the present invention, the other end of the rod body 100 is provided with a mounting seat 810, a spherical cavity is provided in the mounting seat 810, a sphere 820 is movably provided in the spherical cavity, the sphere 820 is movably provided with a tightening member 830 capable of extending out of the surface of the sphere 820 to tighten against the spherical cavity, and one end of the tightening member 830 far away from the sphere 820 is provided with a threaded rod 840 and a mounting platform 850 for the threaded rod 840 to penetrate.

It should be noted that the mounting platform 850 is used to carry a photographing apparatus or a projection apparatus, the threaded rod 840 is used to connect the photographing apparatus or the projection apparatus, and when the sphere 820 rotates, the threaded rod 840 and the mounting platform 850 can be adjusted at multiple angles, so that the photographing apparatus or the projection apparatus tilts. The ball 820 can be pressed against the inner wall of the spherical cavity by driving the pressing member 830 to extend out of the ball 820, thereby locking the angular positions of the threaded rod 840 and the mounting platform 850.

Specifically, referring to fig. 4, in the present embodiment, a threaded column 860 is provided on the ball 820, a knob member 870 is screwed on the exterior of the threaded column 860, the knob member 870 abuts against the threaded rod 840, and when the knob member 870 is rotated, the knob member 870 can push the threaded rod 840 and the tightening member 830 to move toward the ball 820 as a whole, so that the tightening member 830 protrudes from the ball 820 to tighten against the spherical cavity.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a support that three cut seat is built-in which characterized in that includes:

the utility model provides a three-cutting-seat type medical instrument, including the body of rod (100), the inside of the body of rod (100) in the one end of the body of rod (100) is equipped with the lumen, be provided with three cutting seats (200) in the lumen, three cutting seats (200) distribute around its vertical central line circumference have three stretch out in stabilizer blade subassembly (300) outside the lumen, stabilizer blade subassembly (300) can be relative three cutting seats (200) rotate down to the state of expanding, perhaps relative three cutting seats (200) upwards rotate to converge in the state of accomodating of the periphery wall of the body of rod (100).

2. The stent with a built-in tri-cutting seat of claim 1, wherein:

stabilizer blade subassembly (300) including rotate set up in connecting rod (310) of the periphery of three cutting seats (200), connecting rod (310) can be relative three cutting seats (200) tilting, the periphery wall of the body of rod (100) is equipped with the intercommunication the lumen supplies connecting rod (310) tilting's first breach groove (121), the bottom rotation of three cutting seats (200) is provided with spacing carousel (400), spacing carousel (400) have the confession second breach groove (410) that connecting rod (310) passed, spacing carousel (400) can support by in connecting rod (310) are so that stabilizer blade subassembly (300) are stable the expansion state perhaps the state of accomodating.

3. A stent with a built-in tri-secant seat according to claim 2, wherein:

the periphery wall of the body of rod (100) is the face of cylinder, spacing carousel (400) are located including rotating bottom plate (401) on the bottom surface of three cutting seats (200) with locate bottom plate (401) and hug closely in arc deflector (402) of face of cylinder, second breach groove (410) are including following the length direction of the body of rod (100) is seted up in vertical groove (411) of arc deflector (402) and is located bottom plate (401) and intercommunication arc wall (412) of vertical groove (411), connecting rod (310) can be followed vertical groove (411) luffing motion and edge arc wall (412) are around the vertical center line rotation of three cutting seats (200).

4. A holder with a built-in three cutting bases according to claim 3, characterized in that:

the three-cutting seat (200) comprises an upper connecting seat (210) and a lower connecting seat (220) which are arranged in the pipe cavity, a pivoting part (311) is arranged at the upper end of the connecting rod (310), the upper connecting seat (210) and the lower connecting seat (220) limit a pivoting groove for accommodating the pivoting part (311), the upper surface of the bottom plate (401) abuts against the lower surface of the lower connecting seat (220), a threaded fastener (500) penetrates through the bottom plate (401), the lower connecting seat (220) and the upper connecting seat (210) along the vertical central line of the three-cutting seat (200), and the limiting rotary disc (400) can rotate around the threaded fastener (500).

5. The stent with a built-in tri-cutting seat of claim 1, wherein:

the outer wall of the three-cutting seat (200) is connected with the inner wall of the tube cavity through a rotary clamping structure.

6. A three-cutting seat built-in support according to claim 5, characterized in that:

rotatory joint structure is including locating the inner wall of lumen and edge guide way (610) and constant head tank (620) that the length direction of lumen extended the setting, constant head tank (620) with the lateral part of guide way (610) is linked together, the inner wall of lumen be equipped with the lateral part of guide way (610) is linked together and winds anticreep groove (630) that the circumference of lumen set up, the outer wall of three cutting seat (200) is equipped with first arch (221) and second arch (211), first arch (221), second arch (211) all can be followed the length direction reciprocating motion of guide way (610), first arch (221) can be followed guide way (610) gets into constant head tank (620) is in order to prevent three cutting seat (200) are relative body of rod (100) rotates, simultaneously, second arch (211) can follow guide way (610) gets into anticreep groove (630) is in order to restrict three cutting seat (200) are followed the length direction of body of rod (100) removes.

7. The stent with the built-in three cutting bases according to claim 6, characterized in that:

first arch (221), second arch (211) guide way (610) constant head tank (620) with anticreep groove (630) all is provided with a plurality ofly and quantity equals, and is a plurality of first arch (221) and a plurality of second arch (211) wind the vertical central line circumference of three cutting seats (200) distributes in the periphery wall of three cutting seats (200), second arch (211) with first arch (221) one-to-one, and is a plurality of guide way (610) and a plurality of constant head tank (620) wind the axis circumference of the body of rod (100) distribute in the inner wall of lumen.

8. The stent with the built-in three cutting bases according to claim 6, characterized in that:

the body of rod (100) includes inner tube (110) and cover and establishes outer tube (120) of the outside of inner tube (110), inner tube (110) can be followed the flexible removal of length direction of outer tube (120), outer tube (120) with be equipped with flexible locking structure (700) between inner tube (110), the inside passageway of outer tube (120) constitutes the lumen.

9. The stent with a built-in tri-cutting seat of claim 8, wherein:

the telescopic locking structure (700) comprises a third protrusion (710) and a fourth protrusion (720) which are arranged on the outer wall of the inner pipe (110) in a protruding mode, the third protrusion (710) and the fourth protrusion (720) can move back and forth along the length direction of the guide groove (610), the third protrusion (710) can enter the positioning groove (620) from the guide groove (610) to prevent the inner pipe (110) from rotating relative to the outer pipe (120), and meanwhile the fourth protrusion (720) can enter the anti-falling groove (630) from the guide groove (610) to limit the inner pipe (110) from moving telescopically relative to the outer pipe (120).

10. The stent with a built-in tri-cutting seat of claim 1, wherein:

the other end of the body of rod (100) is equipped with mount pad (810), be equipped with spherical chamber in mount pad (810), the activity of spherical intracavity is equipped with spheroid (820), spheroid (820) activity wear to be equipped with can stretch out in the surface of spheroid (820) is in order to push up tightly in the tight piece (830) in top in spherical chamber, top tight piece (830) are kept away from the one end of spheroid (820) is equipped with threaded rod (840) and supplies mounting platform (850) that threaded rod (840) were worn to establish.

Images