CN220119054U - Angle-adjustable platform locking mechanism - Google Patents

Abstract

The utility model discloses an angle-adjustable platform locking mechanism, which comprises: a foot seat, the inside of which is provided with a containing cavity; the ball bowl assembly comprises a ball bowl, a locking block and a tensioning block; the locking component comprises a movable rod, one end of the movable rod extends into the accommodating cavity from the side opening, a first inclined block and a second inclined block are positioned in the accommodating cavity, the lower parts of the first inclined block and the second inclined block are matched with the inclined surfaces of the tensioning blocks, the first inclined block is movably sleeved on the movable rod, and the second inclined block is fixedly sleeved on the movable rod; the elastic reset piece is elastically arranged between the first inclined block and the second inclined block; the locking sleeve rod and the movable rod keep relative circumferential rotation and relative axial movement. The ball bowl locking device has the advantages that the locking force is larger by means of the mode that the first oblique block and the second oblique block which are arranged in two directions are used for jointly compacting the tensioning block to provide the locking force for the ball bowl, and the stability of the ball bowl when locked is greatly improved; and the structure is simple, the assembly is convenient, and the difficult problem that the second inclined block and the movable block are difficult to assemble with the tensioning block in tandem after being assembled and fixed together in the prior art is solved.

Description

Angle-adjustable platform locking mechanism

Technical Field

The utility model relates to the technical field of photographic equipment, in particular to an angle-adjustable platform locking mechanism.

Background

Currently, when a video camera or a camera is used for shooting, the video camera or the camera is often required to be fixed on a shooting support, the existing shooting support is usually provided with a spherical bowl with adjustable shooting angle and direction, the spherical surface of the spherical bowl is rotatably arranged on a foot seat, and a horizontal locking mechanism is arranged on the foot seat; the ball bowl is also fixedly provided with a platform, and a connector for installing a video camera or a camera is arranged in the middle of the platform.

When the angle of the ball bowl needs to be adjusted, the horizontal locking mechanism is loosened, so that the angle of the ball bowl can be adjusted; when the angle of the ball bowl is adjusted in place, the horizontal locking mechanism is screwed tightly to lock the ball bowl at a required angle.

The existing horizontal locking mechanism utilizes a horizontal movable rod to push an inclined jacking block to move to one side in a one-way manner, the inclined jacking block utilizes the inclined plane to drive a tensioning rod to move downwards, and the tensioning rod drives a ball bowl to move downwards so as to lock the ball bowl on a foot seat. However, the locking force of the mode that the single-side inclined jacking block drives the tension rod to move so as to lock the ball bowl is poor, and photographic equipment arranged on the platform of the ball bowl is easy to shake.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is to overcome the defect of weak locking force of the locking mechanism of the ball bowl in the prior art, thereby providing the platform locking mechanism with adjustable angle.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

an angularly adjustable platform locking mechanism comprising:

a foot rest, the interior of which is provided with a containing cavity with a top opening and a side opening;

the ball bowl assembly comprises a ball bowl which is matched with the spherical surface of the foot seat at the top opening, a locking block which is positioned in the ball bowl and is matched with the spherical surface of the inner wall of the ball bowl, and a tensioning block which is fixedly connected to the locking block, and one end of the tensioning block penetrates through the ball bowl and the top opening and stretches into the accommodating cavity; the tensioning block is provided with a first inclined guide surface;

the locking assembly comprises a movable rod, a first inclined block, a second inclined block, a locking sleeve rod and an elastic reset piece; one end of the movable rod extends into the accommodating cavity from the side opening and penetrates through the tensioning block; the first inclined block and the second inclined block are positioned in the accommodating cavity, a second inclined guide surface matched with the first inclined guide surface is arranged below the first inclined block, the first inclined block is movably sleeved on the movable rod and positioned at one side of the tensioning block close to the side opening, and the second inclined block is fixedly sleeved on the movable rod and positioned at one side of the tensioning block opposite to the side opening; the elastic reset piece is elastically arranged between the first inclined block and the second inclined block, and the elastic force of the elastic reset piece drives the first inclined block and the second inclined block to be far away from each other; the locking sleeve rod is in threaded connection with the periphery of the movable rod, and keeps relative circumferential rotation and relative axial movement with the movable rod; when the locking sleeve rod moves in the direction close to the accommodating cavity, the movable rod moves in the direction far away from the accommodating cavity, and the first inclined block is close to each other under the thrust action of the locking sleeve rod and the second inclined block is driven by the movable rod to downwards squeeze the tensioning block.

Further, the tensioning block comprises a connecting rod fixedly connected with the locking block, an upper top plate connected to the connecting rod and positioned at the position of the top opening of the accommodating cavity, a lower bottom plate positioned in the accommodating cavity and arranged opposite to the upper top plate, and a vertical baffle connected between the upper top plate and the lower bottom plate; the first inclined guide surface is arranged above the lower base plate, and the second inclined guide surfaces on the first inclined block and the second inclined block are propped against the first inclined guide surface on the lower base plate; the vertical baffle is provided with a through hole for the movable rod to pass through, and the first inclined block and the second inclined block are positioned on two opposite sides of the vertical baffle.

Further, the reset elastic piece is sleeved on the movable rod and penetrates through the through hole on the vertical baffle.

Further, a concave cavity is formed in one side, facing away from the second inclined block, of the first inclined block, a bearing sleeved on the periphery of the movable rod is arranged in the concave cavity, and the locking sleeve rod abuts against the first inclined block through the bearing when moving.

Further, the second inclined block is fixed on the movable rod through a fastener, and a notch which is convenient for the fastener to pass through is formed in the upper top plate.

Further, the locking assembly further comprises a locking knob which is connected with the locking sleeve rod and drives the locking sleeve rod to rotate circumferentially and spirally around the movable rod, and the locking knob is provided with an extension arm which is convenient for rotating the locking knob.

Further, an end cover is sleeved on the periphery of one end of the locking sleeve rod, which is opposite to the foot seat, an adjustable elastic piece is sleeved on the periphery of the locking sleeve rod, one end of the adjustable elastic piece is propped against the end cover, and the other end of the adjustable elastic piece is propped against the locking knob.

Further, the bottom of the tensioning block is fixedly connected with a limiting connecting piece penetrating through the bottom of the foot seat, and a waveform gasket is arranged between the limiting connecting piece and the foot seat in a cushioning mode.

Further, the periphery of foot rest is equipped with three connecting seat, be equipped with the connecting hole that is suitable for the connection supporting legs on the connecting seat.

Further, the top wall of the foot seat is provided with a first spherical surface, the outer wall of the ball bowl is provided with a second spherical surface matched with the first spherical surface, the inner wall of the ball bowl is provided with a third spherical surface, and the locking block is provided with a fourth spherical surface matched with the third spherical surface.

The technical scheme of the utility model has the following advantages:

1. the utility model provides an angle-adjustable platform locking mechanism which comprises a foot seat, a ball bowl assembly and a locking assembly, wherein the locking assembly comprises a movable rod, a first inclined block, a second inclined block, a locking sleeve rod and an elastic resetting piece; when the angle of the ball bowl needs to be adjusted, the locking sleeve rod is rotated in the direction away from the tensioning block, at the moment, the first inclined block and the second inclined block are mutually away from each other under the action of the elastic resetting piece, at the moment, the tensioning block is reduced or even not subjected to the downward pressure of the first inclined block and the second inclined block, the locking force of the locking block on the tensioning block on the ball bowl is reduced or eliminated, and the angle of the ball bowl can be adjusted at will; after the angle of ball bowl is adjusted in place, to the direction rotation locking loop bar that is close to the tensioning piece, locking loop bar promotes first sloping block to be close to the direction motion that holds the chamber this moment, and first sloping block produces decurrent downforce to the tensioning piece through the inclined plane effect, and the movable rod moves to the direction that keeps away from the chamber, and the second sloping block moves to the direction that is close to first sloping block along with the motion of movable rod, and the second sloping block also produces decurrent downforce to the tensioning piece through the inclined plane effect, and the tensioning piece drives the latch segment and pushes down, makes the latch segment lock ball bowl on the foot rest. The mode of utilizing the double-direction oblique blocks to compress the tensioning blocks to provide locking force for the ball bowl is utilized, the locking force is larger, and the stability of the ball bowl when locked is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an adjustable angle platform locking mechanism according to the present utility model;

FIG. 2 is a schematic longitudinal cross-sectional view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of a foot stand according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a tensioning block according to an embodiment of the present utility model.

Reference numerals illustrate: 100. a foot stand; 110. a foot rest body; 111. a first spherical surface; 112. a receiving chamber; 113. a top opening; 114. a side opening; 120. a connecting seat; 121. a connecting through hole; 200. a bowl assembly; 210. ball bowl; 211. a second spherical surface; 212. a third spherical surface; 220. a locking block; 221. a fourth spherical surface; 230. tensioning the block; 231. a connecting rod; 232. an upper top plate; 2321. a notch; 233. a lower base plate; 2331. a first inclined guide surface; 234. a vertical baffle; 2341. a through hole; 240. a platform; 250. a connector; 300. a locking assembly; 310. a movable rod; 320. a first sloping block; 330. a second sloping block; 340. a locking sleeve rod; 350. an elastic reset piece; 360. a bearing; 370. a locking knob; 371. an extension arm; 380. an end cap; 390. an adjustable elastic member; 400. a fastener.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

An angularly adjustable platform locking mechanism, as shown in fig. 1-5, includes a foot rest 100, a bowl assembly 200, and a locking assembly 300. The foot stand 100 comprises a foot stand main body 110 and three connecting seats 120 connected to the periphery of the foot stand main body 110, wherein the three connecting seats 120 are uniformly arranged on the periphery of the foot stand main body 110, and the connecting seats 120 are provided with connecting holes suitable for hinging supporting feet; the inside of the foot rest main body 110 is provided with a containing cavity 112, the top of the foot rest main body 110 is provided with a top opening 113 communicated with the containing cavity 112, the side part of the foot rest main body 110 is provided with a side opening 114 communicated with the containing cavity 112, the axial direction of the side opening 114 is perpendicular to the axial direction of the top opening 113, and the top surface of the foot rest main body 110 is a first spherical surface 111 arranged around the top opening 113.

Bowl assembly 200 includes bowl 210, locking block 220, tensioning block 230, platform 240 and coupler 250. The outer wall of the ball bowl 210 is provided with a second spherical surface 211, a hollow hole is formed in the middle of the bottom of the ball bowl 210, the ball bowl 210 is in spherical fit with the first spherical surface 111 on the foot seat main body 110 through the second spherical surface 211 at the top opening 113 of the foot seat main body 110, and when the ball bowl 210 is not locked, the ball bowl 210 can freely rotate in spherical space relative to the foot seat main body 110. The inner wall of the bowl 210 is provided with a third spherical surface 212, the locking block 220 is positioned in the inner cavity of the bowl 210, the locking block 220 is provided with a fourth spherical surface 221 matched with the third spherical surface 212, and when the bowl 210 rotates to any angle, the locking block 220 can be tightly matched with the bowl 210 through the fourth spherical surface 221 and exert locking force on the bowl 210. The tensioning block 230 is fixedly connected to the locking block 220, one end of the tensioning block 230 passes through the hollowed hole of the ball bowl 210 and the top opening 113 of the footstand main body 110 and extends into the accommodating cavity 112, and a first inclined guide surface 2331 is arranged on the tensioning block 230. The platform 240 is fixed above the bowl 210 by screws, and a connector 250 is fixedly connected to the middle of the platform 240, and the connector 250 is used for installing a video camera or a camera.

In this embodiment, the locking assembly 300 includes a movable bar 310, a first inclined block 320, a second inclined block 330, a locking sleeve 340, and a resilient return 350. One end of the movable rod 310 extends into the accommodating cavity 112 from the side opening 114 and penetrates through the tensioning block 230, and an external thread structure is arranged on the periphery of a part of the movable rod 310 located outside the accommodating cavity 112. The first inclined block 320 and the second inclined block 330 are positioned in the accommodating cavity 112, and a second inclined guide surface which is matched with the first inclined guide surface 2331 on the tensioning block 230 in an inclined way is arranged below the first inclined block 320 and the second inclined block 330; the first inclined block 320 is movably sleeved on the movable rod 310 and is positioned at one side of the tensioning block 230 close to the side opening 114, and the second inclined block 330 is fixedly sleeved on the periphery of the movable rod 310 and is positioned at one side of the tensioning block 230 away from the side opening 114. The elastic restoring member 350 is elastically disposed between the first and second inclined blocks 320 and 330, and the elastic force of the elastic restoring member 350 drives the first and second inclined blocks 320 and 330 to be away from each other. The locking sleeve rod 340 is in threaded connection with the periphery of the movable rod 310, and the locking sleeve rod 340 and the movable rod 310 keep relative circumferential rotation and relative axial movement; when the locking sleeve 340 moves in a direction approaching the accommodating cavity 112, the movable rod 310 moves in a direction separating from the accommodating cavity 112, and the first inclined blocks 320 and the second inclined blocks 330 approach each other under the pushing force of the locking sleeve 340 and the driving force of the movable rod 310 to press the tensioning blocks 230 downwards.

When the angle of the ball bowl 210 needs to be adjusted, the adjustable platform locking mechanism rotates the locking sleeve rod 340 in a direction away from the tensioning block 230, at this time, the movable rod 310 and the locking sleeve rod 340 perform relative axial movement, the axial movement direction of the movable rod 310 is opposite to that of the locking sleeve rod 340, the movable rod 310 drives the second inclined block 330 on the movable rod to move in a direction away from the first inclined block 320, the tightening force of the locking sleeve rod 340 on the first inclined block 320 disappears, the first inclined block 320 moves in a direction away from the second inclined block 330 under the action of the elastic force of the elastic reset piece 350, at this time, the tensioning block 230 is reduced or even completely not subjected to the downward pressure by the downward pressure of the first inclined block 320 and the second inclined block 330, and accordingly, the locking force of the locking block 220 on the tensioning block 230 on the ball bowl 210 is reduced or disappears, and the angle of the ball bowl 210 can be adjusted at will. When the angle of the ball socket 210 is adjusted in place, the locking sleeve rod 340 is rotated in a direction approaching to the tightening block 230, at this time, the locking sleeve rod 340 pushes the first inclined block 320 to move in a direction approaching to the accommodating cavity 112, the first inclined block 320 generates downward pressure on the tightening block 230 through the inclined surface effect, the axial movement direction of the movable rod 310 is opposite to the axial movement direction of the locking sleeve rod 340, the movable rod 310 drives the second inclined block 330 to move in a direction approaching to the first inclined block 320, the second inclined block 330 also generates downward pressure on the tightening block 230 through the inclined surface effect, and the tightening block 230 drives the locking block 220 to press down, so that the ball socket 210 is locked on the footstand 100 by the locking block 220. The mode of utilizing the double-direction inclined blocks to compress the tensioning blocks 230 to provide locking force for the ball bowl 210 has the advantages that the locking force is larger, and the stability of the ball bowl 210 when locked is greatly improved.

In this embodiment, the tensioning block 230 includes a connecting rod 231 fixedly connected to the locking block 220, an upper top plate 232 integrally formed below the connecting rod 231 and located at the top opening 113 of the accommodating cavity 112, a lower bottom plate 233 located in the accommodating cavity 112 and disposed opposite to the upper top plate 232, and a vertical baffle 234 integrally formed between the upper top plate 232 and the lower bottom plate 233. The upper top plate 232 and the lower bottom plate 233 form receiving spaces adapted to receive the first and second inclined blocks 320 and 330 at both sides of the vertical baffle 234, and the upper top plate 232 can prevent the first and second inclined blocks 320 and 330 from being separated from the top opening 113 of the receiving chamber 112. The first inclined guide surface 2331 is located above the lower plate 233, and the first inclined guide surface 2331 is inclined from the vertical baffle 234 toward the lower plate 233, and the second inclined guide surfaces on the first inclined block 320 and the second inclined block 330 are abutted against the first inclined guide surface 2331 on the lower plate 233. The vertical baffle 234 is provided with a through hole 2341 for the movable rod 310 to pass through, and the first inclined block 320 and the second inclined block 330 are positioned on two opposite sides of the vertical baffle 234. The second inclined block 330 is fixed to the movable rod 310 by a fastener 400, and a notch 2321 for facilitating the fastener 400 to pass through is formed on one side of the upper top plate 232 corresponding to the second inclined block 330.

In the assembly process, the first inclined block 320 and the second inclined block 330 are firstly abutted against one side of the vertical baffle 234, the first inclined block 320 and the second inclined block 330 are integrally inserted into the accommodating cavity 112 of the foot stool body 110 along with the tensioning block 230, then the movable rod 310 is inserted from the side opening 114 of the foot stool body 110, the movable rod 310 sequentially passes through the hole in the first inclined block 320, the through hole 2341 of the vertical baffle 234 and the hole on the second inclined block 330, then the fastener 400 is driven from the notch 2321 on the upper top plate 232, the second inclined block 330 is fixed on the movable rod 310, the locking sleeve rod 340 is installed on the periphery of the movable rod 310, finally the ball bowl 210 is placed on the foot stool body 110, the locking block 220 is fixed on the tensioning block 230, and the platform 240 is installed on the ball bowl 210. By providing the notch 2321 on the upper top plate 232, the second oblique block 330 is conveniently fixed on the movable rod 310, and the technical problem that the second oblique block 330 and the movable block are difficult to stretch into the footstand main body 110 in tandem with the tensioning block 230 after being assembled and fixed together in the prior art is overcome.

In this embodiment, the reset elastic member is sleeved on the movable rod 310 and passes through the through hole 2341 on the vertical baffle 234, one end of the reset elastic member abuts against the first inclined block 320, and the other end abuts against the second inclined block 330. The return elastic member is specifically a coil spring. In an alternative embodiment, there may be two sets of return springs, one set of return springs being elastically disposed between the first ramp 320 and the vertical baffle 234 and the other set of return springs being disposed between the second ramp 330 and the vertical baffle 234.

In this embodiment, a concave cavity is disposed on a side of the first inclined block 320 facing away from the second inclined block 330, a bearing 360 sleeved on the periphery of the movable rod 310 is disposed in the concave cavity, the bearing 360 is specifically a planar bearing, and the locking sleeve rod 340 abuts against the first inclined block 320 through the bearing 360 during movement. The arrangement of the plane bearing can avoid the direct propping of the locking sleeve rod 340 and the first inclined block 320, reduce the abrasion between the locking sleeve rod and the first inclined block, and avoid the influence on the locking force caused by overlarge abrasion after long-term use.

In this embodiment, the locking assembly 300 further includes a locking knob 370 connected to the locking sleeve 340 and screwed in a circumferential direction around the movable rod 310, and the locking knob 370 is provided with an extension arm 371 for facilitating rotation of the locking knob 370. The extension arm 371 is provided to facilitate rotation of the locking knob 370 to cause helical rotation of the locking sleeve 340. Specifically, the locking knob 370 is abutted against the hexagonal structure of the outer periphery of the locking sleeve 340, and the locking knob 370 can drive the locking sleeve 340 to rotate synchronously when rotating. The outer periphery thread sleeve of the end of the locking sleeve rod 340 facing away from the foot seat 100 is provided with an end cover 380, the outer periphery of the locking sleeve rod 340 is also sleeved with an adjustable elastic piece 390, one end of the adjustable elastic piece 390 is propped against the end cover 380, and the other end is propped against the locking knob 370.

In this embodiment, a limiting connector penetrating through the bottom of the foot rest main body 110 is fixedly connected to the bottom of the tensioning block 230, and a wave-shaped spacer is arranged between the limiting connector and the foot rest 100. The wave washer can provide a certain buffering force for the tensioning block 230, so that abnormal sound generated when the limiting connecting piece impacts the foot seat main body 110 is prevented from being generated when the locking assembly 300 is loosened by the tensioning block 230 driving the limiting connecting piece to bounce upwards.

In summary, according to the adjustable-angle platform locking mechanism provided by the embodiment of the utility model, the locking force is larger by using the manner that the two-way first inclined block 320 and the two-way second inclined block 330 jointly compress the tensioning block 230 to provide the locking force for the ball bowl 210, so that the stability of the ball bowl 210 when locked is greatly improved; in addition, in the bidirectional compression structure, the second inclined block 330 fixedly connected with the movable rod 310 is difficult to be installed in the foot stool 100, so that the assembly is more convenient.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (10)

1. An angularly adjustable platform locking mechanism, comprising:

a foot rest (100) having a receiving cavity (112) inside thereof having a top opening (113) and a side opening (114);

a bowl assembly (200) comprising a bowl (210) spherically matched with the foot base (100) at the top opening (113), a locking block (220) positioned in the bowl (210) and spherically matched with the inner wall of the bowl (210), and a tensioning block (230) fixedly connected to the locking block (220) and one end of which passes through the bowl (210) and the top opening (113) and stretches into the accommodating cavity (112); the tensioning block (230) is provided with a first inclined guide surface (2331);

the locking assembly (300) comprises a movable rod (310), a first inclined block (320), a second inclined block (330), a locking sleeve rod (340) and an elastic reset piece (350); one end of the movable rod (310) extends into the accommodating cavity (112) from the side opening (114) and penetrates through the tensioning block (230); the first inclined block (320) and the second inclined block (330) are positioned in the accommodating cavity (112), a second inclined guide surface matched with the first inclined guide surface (2331) is arranged below the accommodating cavity, the first inclined block (320) is movably sleeved on the movable rod (310) and positioned on one side, close to the side opening (114), of the tensioning block (230), and the second inclined block (330) is fixedly sleeved on the movable rod (310) and positioned on one side, opposite to the side opening (114), of the tensioning block (230); the elastic reset piece (350) is elastically arranged between the first inclined block (320) and the second inclined block (330) and drives the first inclined block (320) and the second inclined block (330) to be far away from each other by elastic force; the locking sleeve rod (340) is in threaded connection with the periphery of the movable rod (310) and keeps relative circumferential rotation and relative axial movement with the movable rod (310); when the locking sleeve rod (340) moves towards the direction approaching to the accommodating cavity (112), the first inclined blocks (320) are mutually approaching to each other under the thrust action of the locking sleeve rod (340) and the second inclined blocks (330) under the driving action of the movable rod (310) so as to downwards squeeze the tensioning blocks (230).

2. The adjustable angle platform locking mechanism according to claim 1, wherein the tightening block (230) comprises a connecting rod (231) fixedly connected with the locking block (220), an upper top plate (232) connected to the connecting rod (231) and located at a top opening (113) of the accommodating cavity (112), a lower bottom plate (233) located within the accommodating cavity (112) and disposed opposite to the upper top plate (232), and a vertical baffle (234) connected between the upper top plate (232) and the lower bottom plate (233); the first inclined guide surface (2331) is arranged above the lower base plate (233), and the second inclined guide surfaces on the first inclined block (320) and the second inclined block (330) are propped against the first inclined guide surface (2331) on the lower base plate (233); the vertical baffle plate (234) is provided with a through hole (2341) for the movable rod (310) to pass through, and the first inclined block (320) and the second inclined block (330) are positioned on two opposite sides of the vertical baffle plate (234).

3. The adjustable angle platform locking mechanism according to claim 2, wherein the elastic return member is sleeved on the movable rod (310) and passes through a through hole (2341) on the vertical baffle (234).

4. The adjustable angle platform locking mechanism according to claim 1, wherein a concave cavity is formed in one side of the first inclined block (320) facing away from the second inclined block (330), a bearing (360) sleeved on the periphery of the movable rod (310) is arranged in the concave cavity, and the locking sleeve rod (340) abuts against the first inclined block (320) through the bearing (360) when moving.

5. The adjustable angle platform locking mechanism according to claim 2, wherein the second sloping block (330) is fixed to the movable rod (310) by a fastener (400), and the upper top plate (232) is provided with a notch (2321) for facilitating the fastener (400) to pass through.

6. The adjustable angle platform locking mechanism of claim 1, wherein the locking assembly (300) further comprises a locking knob (370) coupled to the locking collar (340) and adapted to rotate the locking collar (340) circumferentially and helically about the movable bar (310), the locking knob (370) having an extension arm (371) adapted to facilitate rotation of the locking knob (370).

7. The adjustable angle platform locking mechanism according to claim 6, wherein an end cover (380) is sleeved on the outer periphery of one end of the locking sleeve rod (340) facing away from the footstand (100), an adjustable elastic member (390) is sleeved on the outer periphery of the locking sleeve rod (340), one end of the adjustable elastic member (390) abuts against the end cover (380), and the other end abuts against the locking knob (370).

8. The adjustable angle platform locking mechanism according to claim 1, wherein a limit connector passing through the bottom of the foot stand (100) is fixedly connected to the bottom of the tightening block (230), and a wave-shaped gasket is arranged between the limit connector and the foot stand (100).

9. The adjustable angle platform locking mechanism according to claim 1, wherein three connecting seats (120) are arranged on the periphery of the foot seat (100), and connecting holes suitable for connecting supporting feet are arranged on the connecting seats (120).

10. The adjustable angle platform locking mechanism according to claim 1, wherein a first spherical surface (111) is arranged on the top wall of the foot stand (100), a second spherical surface (211) matched with the first spherical surface (111) is arranged on the outer wall of the ball bowl (210), a third spherical surface (212) is arranged on the inner wall of the ball bowl (210), and a fourth spherical surface (221) matched with the third spherical surface (212) is arranged on the locking block (220).