CN212660205U - High appearance of clapping of adjustable camera position - Google Patents

Abstract

The utility model discloses a high appearance of clapping of adjustable camera position, including base, pole setting, the base has rotary drive mechanism and does the circumference rotation with the drive pole setting, and high appearance of clapping still includes connecting portion, movable rod subassembly and the subassembly of making a video recording. The connecting part is provided with a rotatable hinge part, a first sleeve at one end of the hinge part is sleeved on the upright rod and can lift along the upright rod, a second sleeve at the other end of the hinge part is vertical to the first sleeve, and the second sleeve is provided with a lateral opening; the movable rod component penetrates through the second sleeve and can move along the second sleeve. The camera shooting component is fixedly arranged at the end part of the movable rod component. The utility model discloses a but high appearance autogiration of clapping, its connecting portion height-adjustable festival, but connecting portion level is to rotating, can fix a position through interference hinge structure after rotating. The utility model discloses a but movable rod subassembly on the high appearance of clapping is the level to the regulation, and then the distance between adjustable camera module and the pole setting. The utility model discloses a but high appearance autogiration of clapping can improve scanning efficiency.

Description

High appearance of clapping of adjustable camera position

Technical Field

The utility model relates to a high appearance of clapping, specific saying so relates to a high appearance of clapping of adjustable camera position.

Background

The high shooting instrument is also called as a fast shooting instrument, is an office supply with OCR character recognition function, can recognize and convert scanned pictures into editable word documents, can also carry out operations such as photographing, video recording, copying, network paperless fax, electronic book making, edge cutting and righting and the like, and is widely applied to government departments, finance, education and other industries.

The traditional high-speed shooting instrument is generally of a fixed structure, cannot rotate and needs to be moved completely when in use.

And in some posts with large scanning workload, the scanned images need to be scanned one by one, and the scanning efficiency is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the to-be-solved technical problem of the utility model lies in providing a high appearance of clapping of adjustable camera position, and the purpose of designing this high appearance of clapping is in order to improve scanning efficiency.

In order to solve the technical problem, the utility model discloses a following scheme realizes: the utility model discloses a high appearance of clapping of adjustable camera position, including the base, solid in pole setting on the base, the base has rotary drive mechanism with the drive the circumference is done in the pole setting and is rotated, high appearance of clapping still includes:

the connecting part is provided with a rotatable hinge part, a first sleeve at one end of the hinge part is sleeved on the upright rod and can lift along the upright rod, a second sleeve at the other end of the hinge part is vertical to the direction of the first sleeve, and the second sleeve is provided with a lateral opening;

the movable rod assembly penetrates through the second sleeve and can move along the second sleeve;

the camera shooting assembly is fixedly arranged at the end part of the movable rod assembly.

Furthermore, the side wall of the upright rod is provided with a vertically arranged convex radial strip.

Furthermore, first cover spare is bent into the circle cover structure by a plate body and is bent on one side at the seam crossing of this circle cover structure and forms a first folded plate, first folded plate leaves with the seam crossing and compares at least evagination footpath strip big clearance that thickness is big, be equipped with the screw on the first folded plate, wear to be equipped with butterfly bolt on the screw in order to with first folded plate with evagination footpath strip locking, and then make first cover spare lock in the pole setting.

Further, the second external member with first external member interference hinge, the second external member is equipped with the level to leading to the chamber, and its side direction opening communicates with each other with leading to the chamber, all is equipped with the extension board to the evagination on the upper and lower limit of side direction opening part, and two extension boards are parallel, and the extension board from top to bottom is equallyd divide and is separated into three-section protruding rafter, and wherein, the upper protruding rafter at middle part is equipped with the round hole.

Furthermore, the high-speed scanner also comprises a limit nail, and a circle of vertical insection is arranged on the lower part of the outer wall of the column part of the limit nail.

Still further, the movable bar assembly includes:

the round supporting rod penetrates through the through cavity and is laterally grooved;

the tooth end of the rack is outwards fixed at the groove of the round supporting rod and fixed through a screw, part of the rack body is exposed, the exposed part of the rack body can slide along the gap between the upper extending plate and the lower extending plate, and when the limiting nail is inserted into the round hole of the upper protruding rafter at the middle part, the vertical insection on the limiting nail can be meshed with the rack.

Further, the camera assembly includes:

the connecting block is fixedly connected to the end part of the movable rod component, and a dovetail-shaped lug is arranged on the outer side of the connecting block;

the sliding block is provided with a dovetail groove, the sliding block slides on the dovetail-shaped convex block through the dovetail groove, the middle part of the front side of the sliding block is provided with a screw hole so as to fix the dovetail-shaped convex block through a screw, and two sides of the upper surface and the lower surface of the sliding block are provided with screw holes;

the adjustable lifting frame is connected with the sliding block and can be used for lifting adjustment on the sliding block;

the camera module is fixedly arranged on the adjustable lifting frame.

Still further, the adjustable crane comprises:

the two screws are respectively screwed on the two screw holes, the lower ends of the screws are provided with screw holes, and cross grooves are formed in the mouth parts of the screw holes;

and the two ear ends of the camera module mounting plate are fixed at the lower ends of the two screws through screws.

Furthermore, the rotary driving mechanism is a worm and gear driving mechanism, and comprises a driving source assembly and a worm gear part driven by the driving source assembly to rotate.

Further, the driving source assembly includes:

one end of a motor shell on the driving side of the motor is fixed on a motor base;

a bearing seat which is opened towards one side of the worm wheel part and one end of which is connected with the motor seat;

the worm assembly is arranged in the bearing seat and connected to the rotating part of the motor, and the worm on the worm assembly is driven by the motor to rotate;

the worm assembly includes:

a worm;

the fixing nut is sleeved on the worm and is in threaded connection with one side of the motor base;

the left bearing seat is laterally fixed on one side of the motor seat, two thrust bearings and a left bearing sleeved on the worm are fixed in the left bearing seat, the two thrust bearings are respectively arranged at a left hole opening of the left bearing seat and a right hole opening of the left bearing seat, the left thrust bearing abuts against the fixing nut, the left bearing is arranged between the two thrust bearings and is arranged in a shaft hole of the left bearing seat, and the convex end of the left bearing seat is inserted into a cavity opening of the worm assembly mounting cavity and is fixed;

the right bearing is fixedly arranged in a shaft hole of the right bearing seat, the other end of the worm is inserted and fixed in the inner hole of the right bearing, and the right bearing seat is fixed at the bottom of the worm assembly mounting cavity;

the worm wheel portion includes:

the worm assembly mounting cavity is arranged on one side of the base body, the worm wheel assembly mounting cavity is arranged on the other side of the base body, the worm assembly penetrates through the worm assembly mounting cavity, and coaxial circular holes are formed in the upper side and the bottom surface of the worm wheel assembly mounting cavity;

the worm wheel assembly is arranged in the worm wheel assembly mounting cavity and can rotate in the worm wheel assembly mounting cavity, a worm wheel on the worm wheel assembly mounting cavity is meshed with the worm, and the rotary disc is fixed on the rotating part of the worm wheel assembly and is arranged on the upper side of the upper end circular opening; the rotary disc is fixed with the lower end of the upright rod;

the worm gear assembly includes:

the middle of the worm wheel is provided with a column part with an upper through hole and a lower through hole, the outer part of the worm wheel is provided with a wheel body which is sleeved and fixed on the outer wall of the column part, and the outer wall of the wheel body is provided with a circle of tooth grooves;

the upper bearing is sleeved on the upper boss of the column part and the lower bearing is sleeved on the lower boss of the column part, and the turntable is fixed at the upper end of the column part;

the bearing base covers the circular hole in the lower bottom surface of the base body, the lower bearing seat is arranged in the circular groove step of the bearing base, and the middle of the circumference of the circle of tooth grooves forms an inwards concave structure.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a but high appearance autogiration of clapping.

2. The utility model discloses a connecting portion height-adjustable on the high appearance of clapping, connecting portion can level to rotating, can fix a position through interference hinge structure after rotating.

3. The utility model discloses a but movable rod subassembly on the high appearance of clapping is the level to the regulation, and then the distance between adjustable camera module and the pole setting.

4. The utility model discloses a movable rod subassembly on the high appearance of clapping is adjusted back accessible banking pin and is fixed a position.

5. The utility model discloses a but high appearance autogiration of clapping can improve scanning efficiency.

Drawings

Fig. 1 is the perspective structure schematic diagram of the high-speed shooting instrument of the present invention.

Fig. 2 is the utility model discloses the structure enlarger of appearance upper end rotating part is rolled over to height.

Fig. 3 is the schematic structural diagram of the camera module of the present invention.

Fig. 4 is a schematic structural view of the stop pin of the present invention.

Fig. 5 is a perspective view of the rotary driving mechanism of the present invention.

Fig. 6 is an exploded view of the driving source assembly of the present invention.

Fig. 7 is a side sectional view of the assembled drive source assembly of the present invention.

Fig. 8 is an exploded view of the turbine section of the present invention.

Fig. 9 is a side sectional view of the turbine section of the present invention after assembly.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making more clear and definite definitions of the protection scope of the present invention. It is obvious that the described embodiments of the invention are only some of the embodiments of the invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. 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 invention, it is to be noted that, unless otherwise explicitly specified or limited, 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; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Embodiment 1, the utility model discloses a specific structure as follows:

referring to fig. 1-5, the utility model discloses a high appearance of clapping of adjustable camera position, including base 3, stand admittedly in pole setting 4 on the base 3, base 3 has rotary drive mechanism in order to drive pole setting 4 does the circumferential motion, high appearance of clapping still includes:

a connecting part 7, which is provided with a rotatable hinge part, wherein a first sleeve 71 at one end of the hinge part is sleeved on the upright stanchion 4 and can be lifted along the upright stanchion 4, a second sleeve 73 at the other end of the hinge part is vertical to the direction of the first sleeve 71, and the second sleeve 73 is provided with a lateral opening;

the movable rod assembly 8 is arranged in the second sleeve 73 in a penetrating mode and can move along the second sleeve 73;

the camera shooting assembly 6 is fixedly arranged at the end part of the movable rod assembly 8.

A preferred technical solution of this embodiment: the side wall of the upright rod 4 is provided with a vertically arranged outer convex radial strip 41.

A preferred technical solution of this embodiment: first external member 71 is bent into the round sleeve structure by a plate body and is bent on one side at the seam crossing of this round sleeve structure and forms a first folded plate, first folded plate leaves with the seam crossing and compares at least evagination footpath strip 41 big clearance of thickness, be equipped with the screw on the first folded plate, wear to be equipped with butterfly bolt 72 on the screw in order with first folded plate with evagination footpath strip 41 locks, and then makes first external member 71 lock in on pole setting 4.

A preferred technical solution of this embodiment: second cover 73 with first cover 71 interference hinge joint, second cover 73 is equipped with the logical chamber of level to, and its side direction opening communicates with each other with logical chamber, all is equipped with the extension board to the evagination on the upper and lower limit of side direction opening part, and two extension boards are parallel, and the extension board from top to bottom is equallyd divide and is separated into three sections protruding rafters, and wherein, the upward protruding rafter at middle part is equipped with the round hole.

A preferred technical solution of this embodiment: the high appearance of clapping still includes stop pin 5, 5 post portion outer wall lower parts of stop pin are equipped with round vertical insection 51.

A preferred technical solution of this embodiment: the movable bar assembly 8 includes:

a round support rod 81 which is arranged in the through cavity in a penetrating way and is provided with a lateral groove;

and the tooth end of the rack 82 is outwards fixed at the groove of the round supporting rod 81 and is fixed through a screw, part of the rack body is exposed, the exposed part of the rack body can slide along the gap between the upper extending plate and the lower extending plate, and when the limit nail 5 is inserted into the round hole of the upper protruding rafter at the middle part, the vertical tooth grains 51 on the limit nail can be meshed with the rack 82.

A preferred technical solution of this embodiment: the camera module 6 includes:

a connecting block 61 fixedly connected with the end part of the movable rod component 8, and a dovetail-shaped convex block is arranged outside the connecting block 61;

the sliding block 62 is provided with a dovetail groove 66, the sliding block 62 slides on the dovetail-shaped convex block through the dovetail groove 66, the middle part of the front side of the sliding block 62 is provided with a screw hole for fixing the dovetail-shaped convex block through a screw, and two sides of the upper surface and the lower surface of the sliding block 62 are provided with screw holes;

the adjustable lifting frame is connected to the sliding block 62 and can be used for lifting adjustment on the sliding block 62;

and the camera module 63 is fixedly arranged on the adjustable lifting frame.

A preferred technical solution of this embodiment: the crane with adjustable includes:

the two screws 65 are respectively screwed on the two screw holes, the lower ends of the screws 65 are provided with screw holes, and the mouth parts of the screw holes are provided with cross grooves;

and a camera module mounting plate 64 whose both ear ends are fixed to the lower ends of the two screws 65 by screws.

Example 2:

the following is a specific structure of the rotation driving mechanism:

as shown in fig. 5 to 9, the rotary driving mechanism is a worm-and-gear driving mechanism, and includes a driving source assembly 1 and a worm wheel portion 2 driven by the driving source assembly 1 to perform a rotary motion.

A preferred technical solution of this embodiment: the drive source assembly 1 includes:

a motor 15, one end of the motor shell of the driving side of which is fixed on a motor base 16;

a bearing seat 11 which is opened toward the worm wheel 2 and one end of which is connected to the motor base 16;

a worm assembly installed in the bearing housing 11, connected to a rotating portion of the motor 15, and on which the worm 12 is driven by the motor 15 to rotate;

the worm assembly includes:

a worm 12;

a fixing nut 17, which is sleeved on the worm 12 and is screwed on one side of the motor base 16;

the left bearing seat 13 is laterally fixed on one side of the motor base 16, two thrust bearings 18 and a left bearing 19 which are sleeved on the worm 12 are fixed in the left bearing seat 13, the two thrust bearings 18 are respectively arranged at a left hole opening of the left bearing seat 13 and a right hole opening of the left bearing seat 13, the left thrust bearing 18 abuts against the fixing nut 17, the left bearing 19 is arranged between the two thrust bearings 18 and is arranged in a shaft hole of the left bearing seat 13, and the convex end of the left bearing seat 13 is inserted into a cavity opening of the worm assembly mounting cavity and is fixed;

the right bearing 110 is fixedly arranged in an axial hole of the right bearing seat 111, the other end of the worm 12 is inserted and fixed in an inner hole of the right bearing 110, and the right bearing seat 111 is fixed at the bottom of the worm assembly mounting cavity;

the worm gear portion 2 includes:

the worm gear component mounting structure comprises a base body 22, wherein a worm component mounting cavity is arranged on one side of the base body 22, a worm gear component mounting cavity is arranged on the other side of the base body, the worm component penetrates through the worm component mounting cavity, and coaxial circular holes are formed in the upper side and the bottom surface of the worm gear component mounting cavity;

the worm wheel assembly is arranged in the worm wheel assembly mounting cavity and can rotate in the worm wheel assembly mounting cavity, a worm wheel 24 on the worm wheel assembly is meshed with the worm 12, and the rotary disc 21 is fixed on the rotating part of the worm wheel assembly and is arranged on the upper side of the upper end circular opening; the rotary table 21 is fixed with the lower end of the upright rod 4;

the worm gear assembly includes:

the worm wheel 24 is provided with a column part with an upper through hole and a lower through hole in the middle, a wheel body sleeved and fixed on the outer wall of the column part is arranged outside the worm wheel 24, and the outer wall of the wheel body is provided with a circle of tooth grooves;

an upper bearing 23 sleeved on the upper projection of the column part and a lower bearing 25 sleeved on the lower projection of the column part, wherein the rotary table 21 is fixed at the upper end of the column part;

and the bearing base 26 is covered on the circular hole on the lower bottom surface of the base body 22, the lower bearing 25 is seated in the circular groove step of the bearing base 26, and the middle part of the circumference of the ring of tooth grooves forms an inwards concave structure.

Example 3:

the position of the camera module 6 is adjusted, the position shot on the rotating circumference of the camera module 6 is correspondingly provided with a scanning station, a file to be scanned is placed at the scanning station, and a scanning person only needs to continuously change the scanning file by winding.

The utility model discloses a circular motion is done by the rotation driving mechanism drive to pole setting 4 on the high appearance of clapping, and its drive mode stops after driving a directional angle, then scans, and after the scanning was accomplished, the same rotation angle of redriving stops. The movable rod assembly 8 follows the vertical rod 4 to rotate circularly. The camera module 6 rotates circularly, the lens on the camera module scans the file to be scanned, and the image is uploaded to the host after the scanning is finished. The utility model discloses can improve scanning efficiency.

To sum up, the utility model discloses a but high appearance autogiration of clapping. The utility model discloses a connecting portion height-adjustable on the high appearance of clapping, connecting portion can level to rotating, can fix a position through interference hinge structure after rotating. The utility model discloses a but movable rod subassembly on the high appearance of clapping is the level to the regulation, and then the distance between adjustable camera module and the pole setting. The utility model discloses a movable rod subassembly on the high appearance of clapping is adjusted back accessible banking pin and is fixed a position. The utility model discloses a but high appearance autogiration of clapping can improve scanning efficiency.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (10)

1. The utility model provides a high appearance of clapping of adjustable camera position, includes base (3), solid stand in pole setting (4) on base (3), its characterized in that, base (3) have rotary driving mechanism with the drive pole setting (4) are the circumference and rotate, high appearance of clapping still includes:

the connecting part (7) is provided with a rotatable hinge part, a first sleeve part (71) at one end of the hinge part is sleeved on the vertical rod (4) and can lift along the vertical rod (4), a second sleeve part (73) at the other end of the hinge part is vertical to the direction of the first sleeve part (71), and the second sleeve part (73) is provided with a lateral opening;

the movable rod component (8) is arranged in the second sleeve component (73) in a penetrating mode and can move along the second sleeve component (73);

the camera shooting assembly (6) is fixedly arranged at the end part of the movable rod assembly (8).

2. A high-speed shooting instrument with adjustable camera position according to claim 1 is characterized in that the side wall of the upright rod (4) is provided with a vertical convex radial strip (41).

3. The apparatus of claim 2, wherein the first sleeve member (71) is formed by bending a plate into a circular sleeve structure member, and bending the plate at one side of a joint of the circular sleeve structure member to form a first folded plate, the first folded plate and the joint leaving a gap at least larger than the thickness of the outer radial strip (41), the first folded plate having a screw hole, the screw hole having a butterfly bolt (72) inserted therethrough for locking the first folded plate and the outer radial strip (41), so that the first sleeve member (71) is locked on the vertical rod (4).

4. The high-speed shooting instrument capable of adjusting the position of the camera according to claim 1, wherein the second sleeve (73) is hinged to the first sleeve (71) in an interference manner, the second sleeve (73) is provided with a horizontal through cavity, a lateral opening of the second sleeve is communicated with the through cavity, outward-protruding extension plates are arranged on upper and lower edges of the lateral opening, the two extension plates are parallel, the upper and lower extension plates are equally separated into three convex rafters, and the upward convex rafter in the middle is provided with a round hole.

5. The high-speed camera position adjustable high-speed camera according to claim 4, characterized in that the high-speed camera further comprises a limit pin (5), and a circle of vertical insection (51) is arranged on the lower portion of the outer wall of the column portion of the limit pin (5).

6. The adjustable camera position high shot instrument according to claim 5, wherein said movable bar assembly (8) comprises:

a round supporting rod (81) which is arranged in the through cavity in a penetrating way and is provided with a slot in the lateral direction;

the gear rack (82) is fixed at the groove of the round supporting rod (81) with the outward tooth end fixed through screws, part of the gear rack body is exposed, the exposed part can slide along the gap between the upper extending plate and the lower extending plate, and when the limit nail (5) is inserted into the round hole of the upper protruding rafter at the middle part, the vertical tooth grains (51) on the limit nail can be meshed with the gear rack (82).

7. The adjustable camera position high shot instrument according to claim 1, wherein said camera assembly (6) comprises:

the connecting block (61) is fixedly connected with the end part of the movable rod component (8), and a dovetail-shaped convex block is arranged on the outer side of the connecting block (61);

the sliding block (62) is provided with a dovetail groove (66), the sliding block (62) slides on the dovetail-shaped convex block through the dovetail groove (66), the middle part of the front side of the sliding block (62) is provided with a screw hole for fixing the dovetail-shaped convex block through a screw, and screw holes are formed in the two sides of the upper surface and the lower surface of the sliding block (62);

the adjustable lifting frame is connected to the sliding block (62) and can be used for lifting adjustment on the sliding block (62);

and the camera module (63) is fixedly arranged on the adjustable lifting frame.

8. The high-speed camera with adjustable camera position according to claim 7, characterized in that the adjustable crane comprises:

the two screws (65) are respectively screwed on the two screw holes, the lower ends of the screws (65) are provided with screw holes, and cross grooves are formed in the mouth parts of the screw holes;

and the two ear ends of the camera module mounting plate (64) are fixed at the lower ends of the two screws (65) through screws.

9. The high-speed camera position adjustable instrument according to claim 1, wherein the rotary driving mechanism is a worm-and-gear driving mechanism, which comprises a driving source assembly (1) and a worm gear part (2) driven by the driving source assembly (1) to rotate.

10. The adjustable camera position high shooting apparatus according to claim 9, wherein the driving source assembly (1) comprises:

one end of a motor shell of the motor (15) on the driving side is fixed on a motor base (16);

a bearing seat (11) which is open towards one side of the worm wheel part (2) and one end of which is connected with the motor seat (16);

the worm component is arranged in the bearing seat (11), is connected to the rotating part of the motor (15), and the worm (12) on the worm component is driven by the motor (15) to rotate;

the worm assembly includes:

a worm (12);

the fixing nut (17) is sleeved on the worm (12) and is in threaded connection with one side of the motor base (16);

the left bearing seat (13) is laterally fixed on one side of the motor base (16), two thrust bearings (18) and a left bearing (19) which are sleeved on the worm (12) are fixed in the left bearing seat (13), the two thrust bearings (18) are respectively arranged at a left hole opening of the left bearing seat (13) and a right hole opening of the left bearing seat (13), the left thrust bearing (18) abuts against the fixing nut (17), the left bearing (19) is arranged between the two thrust bearings (18) and is arranged in a shaft hole of the left bearing seat (13), and the convex end of the left bearing seat (13) is inserted into a cavity opening of the worm assembly mounting cavity and is fixed;

the worm assembly comprises a right bearing (110) and a right bearing seat (111), wherein the right bearing (110) is fixedly arranged in an axial hole of the right bearing seat (111), the other end of the worm (12) is inserted and fixed in an inner hole of the right bearing (110), and the right bearing seat (111) is fixed at the bottom of the worm assembly mounting cavity;

the worm gear part (2) includes:

the worm gear assembly mounting structure comprises a base body (22), wherein a worm assembly mounting cavity is arranged on one side of the base body (22), a worm gear assembly mounting cavity is arranged on the other side of the base body, the worm assembly penetrates through the worm assembly mounting cavity, and coaxial circular holes are formed in the upper side and the bottom surface of the worm gear assembly mounting cavity;

the worm wheel assembly is arranged in the worm wheel assembly mounting cavity and can rotate in the worm wheel assembly mounting cavity, a worm wheel (24) on the worm wheel assembly is meshed with the worm (12), a rotary disc (21) is fixed on a rotating part of the worm wheel assembly and is arranged on the upper side of the upper end circular opening, and the rotary disc (21) is fixed with the lower end of the upright rod (4);

the worm gear assembly includes:

the worm wheel (24), the middle of the worm wheel (24) is a column part with an upper through hole and a lower through hole, the outer part of the worm wheel is provided with a wheel body which is sleeved and fixed on the outer wall of the column part, and the outer wall of the wheel body is provided with a circle of tooth grooves;

an upper bearing (23) sleeved on the column part and protruding upwards and a lower bearing (25) sleeved on the column part and protruding downwards, wherein the rotary table (21) is fixed at the upper end of the column part;

the bearing base (26) is connected with the circular hole in the lower bottom surface of the base body (22) in a covering mode, the lower bearing (25) is arranged in the circular groove step of the bearing base (26), and the middle of the circumference of the ring of tooth grooves forms an inwards concave structure.

Images