CN112354146A

CN112354146A - Vertical limiting rotator

Info

Publication number: CN112354146A
Application number: CN202011218320.6A
Authority: CN
Inventors: 程昌锋
Original assignee: Individual
Current assignee: Tengzhou Weida Intelligent Technology Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-02-12
Anticipated expiration: 2040-11-04
Also published as: CN113908487A; CN112354146B

Abstract

The invention relates to the technical field of sports equipment, in particular to a vertical limiting rotator which comprises a stand column and a fixed column, wherein the fixed column is uniformly and fixedly arranged along the circumferential direction of the stand column, the upper end of the stand column is fixedly connected with a stand column disc, a stand column cavity is formed in the stand column, the circumferential surface of the stand column disc is provided with three equal upper rotating through grooves, a pressing mechanism is rotatably connected in each upper rotating through groove, the circumferential surface of the lower end of the stand column is provided with three equal lower rotating through grooves, a transmission mechanism is rotatably connected in each lower rotating through groove, one end of the transmission mechanism, far away from the stand column, is also fixedly connected with a transmission cylinder, the transmission cylinder is sleeved on the fixed column, the fixed column is also provided with a rotating mechanism for controlling the rotating angle of the rotary table, the transmission mechanism arranged in the stand column cavity adjusts the height, the problem of lumbar vertebra and ankle sprain is easily caused in the using process of an exerciser.

Description

Vertical limiting rotator

Technical Field

The invention relates to the technical field of sports equipment, in particular to a vertical limiting rotator.

Background

At present, with the development of fitness exercise, the variety of sports facilities is increasing, and the vertical rotator in the traditional fitness path comprises a vertical column fixed on the ground, an armrest installed on the upper part of the vertical column, two or three support columns fixed on the ground and uniformly distributed on the circumference with the vertical column as the center, and a rotary table installed on each support column by a bearing, wherein each rotary table can rotate three hundred sixty degrees to improve the flexibility of waist and back muscles, and move joints of lumbar vertebrae and ankles, but due to the characteristic of the rotation of the rotary table three hundred sixty degrees, an exerciser can easily cause the sprain of the lumbar vertebrae and ankles in the exercise process.

Disclosure of Invention

The invention aims to provide a vertical limiting rotator to solve the problems that in the prior art, a rotating disc is not limited, and a lumbar vertebra and an ankle are easily sprained during use of an exerciser.

The technical scheme of the invention is as follows: the vertical limiting rotator comprises a stand column and a fixed column which is uniformly and fixedly arranged along the circumferential direction of the stand column, wherein a stand column cavity is formed in the stand column, three equal upper rotating through grooves are formed in the circumferential surface of the stand column disc, a pressing mechanism is rotatably connected inside the upper rotating through grooves, trisected lower rotating through grooves are formed in the circumferential surface of the lower end of the stand column, a transmission mechanism is rotatably connected inside the lower rotating through grooves, one end of the transmission mechanism, far away from the stand column, is fixedly connected with a transmission cylinder, the transmission cylinder is sleeved on the fixed column, the fixed column is also provided with a rotating mechanism for controlling the rotating angle of the rotary disc, the height position of the transmission cylinder is adjusted by the transmission mechanism arranged inside the stand column cavity under the control of the pressing mechanism, the upper rotating through grooves are communicated with the stand column cavity, and the upper rotating through grooves are close to the lower end face of the inner end, go up to rotate and lead to the groove and keep away from the interior port up end of stand chamber and fall forty-five degrees angle, it is located the lower tip in stand chamber to rotate the logical groove down, it is close to the interior port up end of stand chamber and falls forty-five degrees angle to rotate the logical groove down, it keeps away from interior port down end face of stand chamber and falls forty-five degrees angle to rotate the logical groove down. When taking exercise, the person taking exercise steps on the carousel with both feet, and pressing means is held up to both hands, has adjusted the pivoted angle through slewing mechanism, then the person taking exercise passes through both feet, carries out the rotation about in the spacing angle with this take exercise abdomen portion, abdominal external oblique muscle, erector spinae muscle, each joint such as activity lumbar vertebrae and ankle.

As a preferable scheme of the present invention, the pressing mechanism includes an upper rotating shaft fixedly connected to a side surface of the upper rotating through groove, the upper rotating shaft is rotatably connected with a connecting rod, the connecting rod is disposed in a state of diverging from a center of the upright post in a circumferential direction, one end of the connecting rod away from the upright post is fixedly connected with a handrail, and the handrail is in a self-shape of a bow. When the person taking exercise is doing the rotation and is taking exercise both hands and hold the handrail, when the person taking exercise need take exercise hand and back muscle, upwards mention the handrail through both hands, the connecting rod that the axis of rotation was located the stand intracavity portion overturns downwards as the axle messenger above the handrail, through last rotation logical groove lateral surface upper end and go up the chamfer control connecting rod that rotates logical inslot survey face lower extreme can rotate the angle that the logical groove space overturns at last, in order to reach suitable exercise space, and through the height of the rising of drive mechanism control transmission section of thick bamboo.

According to the preferable scheme of the invention, the transmission mechanism comprises a connecting shaft fixedly connected inside the vertical column cavity, the upper end of the connecting shaft is fixedly connected to the end of the connecting rod, the lower end of the connecting shaft is fixedly connected with a curved bar, the side surface of the lower rotating through groove is fixedly connected with a lower rotating shaft, the curved bar is sleeved on the lower rotating shaft, and the lower rotating shaft drives the transmission cylinder at the other end of the curved bar to do up-and-down reciprocating motion by taking the lower rotating shaft as a shaft through the up-and-down motion of the connecting shaft. When the person of taking exercise upwards mentions the handrail, the connecting rod that is located the stand intracavity portion overturns downwards, drive the connecting axle simultaneously and move down in the inside in stand chamber, the lower extreme of connecting axle drives the below pivot of curved bar and rotates the inside in logical groove for the axle center rotates down, thereby make the right-hand member upward movement of curved bar, with this drive transmission section of thick bamboo upwards improve the position, through rotating logical groove lateral surface lower extreme and the chamfer control curved bar pivoted range of logical groove medial surface upper end down, with this angle that the transmission section of thick bamboo that guarantees the curved bar and drive is not high, guarantee person's of taking exercise safety.

As a preferred scheme of the invention, the rotating mechanism comprises two limiting groove groups arranged on the circumferential surface of the upper end of the fixed column, the two limiting groove groups are distributed at equal intervals along the circumferential direction of the upper surface of the fixed column, each limiting groove group comprises at least two limiting clamping grooves arranged on the upper surface of the fixed column, a plurality of limiting clamping grooves are uniformly distributed on the upper surface of the fixed column at equal intervals, the total length of the circular arcs on the outer circumferential side of the plurality of limiting clamping grooves accounts for three fifths of the total length of the circular arcs on the outer circumferential side of the fixed column, the upper end of the transmission cylinder is fixedly connected with limiting blocks in one-to-one correspondence with the limiting groove groups, each limiting block comprises a plurality of clamping blocks fixedly connected on the inner circumferential side of the upper surface of the transmission.

As a preferable scheme of the present invention, the rotating mechanism further includes two sliding blocks fixedly connected to the circumferential surface of the upper end of the fixed column, each sliding block is distributed in the middle of the interval of the limit groove group of the circumferential surface of the upper end of the fixed column, each sliding block includes three sliding fixture blocks fixedly arranged on the circumferential surface of the upper end of the fixed column, the three sliding fixture blocks are distributed at the interval of the limit groove group at equal intervals, the upper surface of the transmission cylinder is fixedly connected with two sliding blocks, the two sliding blocks are in one-to-one correspondence with the two sliding blocks, sliding grooves corresponding to the sliding fixture blocks one-to-one are formed in the inner sides of the sliding blocks close to the fixed column, and the sliding fixture blocks can slide up and down in.

As a preferable proposal of the invention, the rotating mechanism also comprises a pressing and elastic block which is arranged in the upper surface of the transmission cylinder and corresponds to the sliding block, the elastic pressing block comprises a baffle fixedly connected to the outer side of the sliding block, the bottom surface of the baffle is fixedly connected with the bottom surface of the transmission barrel, the other end of the baffle is connected with the side surface of an angle scale in a sliding way, the angle scale is sleeved at the upper end of the transmission cylinder, the lateral side of the baffle is connected with an extrusion plate through a spring, the upper surface of the transmission cylinder is provided with a rotating block in a sliding way, the upper end of the rotating block is fixedly connected with the lower surface of the rotating disc, the circumferential surface of the angle scale is provided with a pushing groove, a pushing block is arranged in the pushing groove in a sliding manner, one end of the pushing block close to the fixing column is fixedly connected with a limiting clamping block, the limiting clamping block can be clamped inside the limiting clamping groove through a gap formed by the two clamping blocks. When an exerciser rotates to exercise, the angle scale is rotated at first, the rotation angle of the limiting clamping block is determined, then the pushing block is pushed manually to slide in the pushing groove, the limiting clamping block is driven to be inserted into the limiting clamping groove from a gap between the two clamping blocks, the rotation angle of the rotating block on the upper surface of the transmission cylinder is controlled, and therefore the exerciser is guaranteed to rotate in a limiting mode when performing rotation training on the turntable, damage and damage caused by the fact that the rotation angle is too large are avoided, meanwhile, the extrusion plate can be extruded when the turntable drives the rotating block to rotate, the extrusion plate is contracted towards the baffle to extrude the spring, accordingly, the load of the exerciser is increased, the exercise effect of the exerciser is improved, when the rotating block is separated from the extrusion plate, the baffle provides power for the extrusion plate through the assistance of the spring, work and combination is achieved, and muscle damage caused by the fact that the strength of the exerciser is too large is avoided, and when spacing fixture block inserted spacing draw-in groove, make driving cylinder and fixed column form spacing fixed, thereby prevent that the person of taking exercise from upwards mentioning the handrail at the in-process of rotating the exercise and driving the carousel up-and-down motion and cause unexpected injury.

Advantageous effects

The invention provides a vertical limiting rotator through improvement, and compared with the prior art, the vertical limiting rotator has the following improvements and advantages:

the rotation angle of the limit latch 27 is determined by rotating the angle dial 25, and then the push block 30 is manually pushed to slide inside the push groove 28, meanwhile, the limiting block 27 is driven to be inserted into the limiting block groove 26 from the gap between the two blocks 31, so as to control the rotating angle of the rotating block 37 on the upper surface of the transmission cylinder 24, thereby ensuring that the exerciser forms limit rotation when performing rotation training on the turntable 15, avoiding damage caused by overlarge rotation angle, meanwhile, the rotary disk 15 drives the rotating block 37 to rotate and simultaneously extrudes the extrusion plate 36, so that the extrusion plate 36 contracts towards the baffle 35 to extrude the spring, thereby increasing the load of the exerciser and improving the exercise effect of the exerciser, when the rotating block 37 is separated from the extrusion plate 36, the baffle 35 provides power for the extrusion plate 36 through the assistance of the spring, so that the labor and the ease are combined, and the muscle injury caused by overlarge strength of an exerciser is avoided.

Drawings

The invention is further explained below with reference to the figures and examples:

fig. 1 is a structural view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a side view of the present invention.

Fig. 4 is a perspective view of fig. 2 taken in section a-a.

Fig. 5 is an enlarged view at Q in fig. 4.

Fig. 6 is a perspective view of fig. 3 taken in section D-D.

Fig. 7 is an enlarged view at W in fig. 6.

Fig. 8 is an enlarged view of fig. 7 at E.

In the figure, an upright post 10, an upright post disc 11, a connecting rod 12, an armrest 13, a curved rod 14, a rotating disc 15, an upright post cavity 16, an upper rotating through groove 17, an upper rotating shaft 18, a connecting shaft 19, a lower rotating through groove 20, a lower rotating shaft 21, a fixed column 23, a transmission cylinder 24, an angle scale 25, a limiting clamping groove 26, a limiting clamping block 27, a pushing groove 28, a pushing block 30, a clamping block 31, a sliding block 32, a sliding groove 33, a sliding clamping block 34, a baffle 35, a squeezing plate 36 and a rotating block 37.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 8, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 4, the invention is a vertical limiting rotator, which comprises an upright post 10 and a fixed post 23 uniformly and fixedly arranged along the circumferential direction of the upright post 10, wherein the upper end of the upright post 10 is fixedly connected with an upright post disk 11, an upright post cavity 16 is arranged in the upright post 10, three equant upper rotating through grooves 17 are arranged on the circumferential surface of the upright post disk 11, a pressing mechanism is rotatably connected inside the upper rotating through grooves 17, trisant lower rotating through grooves 20 are arranged on the circumferential surface of the lower end of the upright post 10, a transmission mechanism is rotatably connected inside the lower rotating through grooves 20, one end of the transmission mechanism far away from the upright post 10 is also fixedly connected with a transmission cylinder 24, the transmission cylinder 24 is sleeved on the fixed post 23, the fixed post 23 is also provided with a rotating mechanism for controlling the rotating angle of the rotary disk 15, the transmission mechanism arranged inside the upright post cavity 16 adjusts the height position of, go up to rotate logical groove 17 and be linked together with stand chamber 16, it reverses forty-five degree angle to go up to rotate logical groove 17 and be close to the terminal surface under the inside port in stand chamber 16, it reverses forty-five degree angle to go up to rotate logical groove 17 and keep away from the inside port up end in stand chamber 16, it is located the lower tip in stand chamber 16 to rotate logical groove 20 down, it reverses forty-five degree angle to rotate logical groove 20 down and be close to the inside port up end in stand chamber 16, it reverses forty-five degree angle to rotate logical groove 20 down and keep away from the inside port in stand chamber 16 under the terminal surface. When taking exercise, the person taking exercise tramples on the carousel 15 with both feet, and pressing mechanism is held up to both hands, has adjusted the pivoted angle through slewing mechanism, then the person taking exercise passes through both feet, carries out the rotation about in the spacing angle with this take exercise abdomen portion, abdominal external oblique muscle, erector spinae muscle, each joint such as activity lumbar vertebrae and ankle.

Referring to fig. 4 and 5, the pressing mechanism includes an upper rotating shaft 18 fixedly connected to a side surface of the upper rotating through groove 17, a connecting rod 12 is rotatably connected to the upper rotating shaft 18, the connecting rod 12 is disposed in a state of diverging from a center of the upright post 10 in a circumferential direction, one end of the connecting rod 12 away from the upright post 10 is fixedly connected to a handrail 13, and the handrail 13 is in a self-shape of a bow. When the person taking exercise holds up handrail 13 with both hands when doing the rotation exercise, when the person taking exercise need temper hand and back muscle, upwards mention handrail 13 through both hands, the connecting rod 12 that the axis of rotation 18 was located stand chamber 16 inside overturns downwards as the axle more than handrail 13, through last rotation logical groove 17 lateral surface upper end and go up to rotate the angle that logical groove 17 space that chamfer control connecting rod 12 of survey face lower extreme can overturn in last rotation logical groove 17 space, in order to reach suitable exercise space, and the height of the rising through drive mechanism control transmission section of thick bamboo 24.

As shown in fig. 4 and 5, the transmission mechanism includes a connecting shaft 19 fixedly connected inside the column cavity 16, the upper end of the connecting shaft 19 is fixedly connected to the end of the connecting rod 12, a curved rod 14 is fixedly connected to the lower end of the connecting shaft 19, a lower rotating shaft 21 is fixedly connected to the side of the lower rotating through groove 20, the curved rod 14 is sleeved on the lower rotating shaft 21, and the lower rotating shaft 21 of the curved rod 14, which moves the other end of the curved rod 14 up and down through the connecting shaft 19, is used as a shaft to drive a transmission cylinder 24 at the other end of the curved rod 14 to move up and down. When the person taking exercise lifts up handrail 13, connecting rod 12 that is located the inside of stand chamber 16 overturns downwards, drive connecting axle 19 and move down in the inside of stand chamber 16 simultaneously, the lower extreme of connecting axle 19 drives the inside that logical groove 20 was rotated down to below pivot 21 of curved bar 14 as the axle center, thereby make the right-hand member upward movement of curved bar 14, thereby drive driving cylinder 24 and upwards improve the position, through rotating logical groove 20 lateral surface lower extreme down and the chamfer control curved bar 14 pivoted range of logical groove 20 medial surface upper end down, with this angle that the driving cylinder 24 that guarantees curved bar 14 and drive rises is not high, guarantee person taking exercise's safety.

Referring to fig. 6 and 7, the rotating mechanism includes two limiting groove sets arranged on the circumferential surface of the upper end of the fixing column 23, the two limiting groove sets are distributed at equal intervals along the circumferential direction of the upper surface of the fixing column 23, each limiting groove set includes at least two limiting clamping grooves 26 arranged on the upper surface of the fixing column 23, the limiting clamping grooves 26 are uniformly distributed on the upper surface of the fixing column 23 at equal intervals, the total length of the arcs on the outer circumferential sides of the limiting clamping grooves 26 accounts for three fifths of the total length of the arcs on the outer circumferential sides of the fixing column 23, the upper end of the transmission cylinder 24 is fixedly connected with limiting blocks corresponding to the limiting groove sets one by one, each limiting block includes a plurality of clamping blocks 31 fixedly connected to the inner circumferential side of the upper surface of the transmission cylinder 24, and a gap formed by every two clamping blocks 31.

As shown in fig. 5 and 7, the rotating mechanism further includes two sliding blocks fixedly connected to the circumferential surface of the upper end of the fixed column 23, each sliding block is distributed in the middle of the interval of the limit groove group on the circumferential surface of the upper end of the fixed column 23, each sliding block includes three sliding blocks 34 fixedly arranged on the circumferential surface of the upper end of the fixed column 23, the three sliding blocks 34 are distributed at the interval of the limit groove group at equal intervals, the upper surface of the transmission cylinder 24 is fixedly connected with two sliding blocks 32, the two sliding blocks 32 are respectively in one-to-one correspondence with the two sliding blocks, sliding grooves 33 corresponding to the sliding blocks 34 are formed in the inner side of the sliding blocks 32 close to the fixed column 23, and the sliding blocks 34 can slide up and down in the sliding grooves 33 in a reciprocating manner.

As shown in fig. 7 and 8, the rotating mechanism further includes a spring pressing block which is arranged in the upper surface of the transmission cylinder 24 and corresponds to the sliding block, the elastic pressing block comprises a baffle plate 35 fixedly connected to the outer side of the sliding block 32, the bottom surface of the baffle plate 35 is fixedly connected with the bottom surface of the transmission barrel 24, the other end of the baffle 35 is connected with the side surface of the angle scale 25 in a sliding way, the angle scale 25 is sleeved at the upper end of the transmission cylinder 24, the lateral side of the baffle 35 is spring-connected with a squeezing plate 36, the upper surface of the transmission cylinder 24 is provided with a rotating block 37 in a sliding way, the upper end of the rotating block 37 is fixedly connected with the lower surface of the turntable 15, the circumferential surface of the angle scale 25 is provided with a pushing groove 28, a pushing block 30 is slidably arranged in the pushing groove 28, one end of the pushing block 30 close to the fixing column 23 is fixedly connected with a limiting clamping block 27, the limit latch 27 can be latched inside the limit latch groove 26 by a gap formed by the two latches 31. When an exerciser does rotary exercise, firstly, the angle disc 25 is rotated, the rotation angle of the limiting clamping block 27 is determined, then the pushing block 30 is manually pushed to slide in the pushing groove 28, meanwhile, the limiting clamping block 27 is driven to be inserted into the limiting clamping groove 26 through a gap between the two clamping blocks 31, so that the rotation angle of the rotating block 37 on the upper surface of the transmission cylinder 24 is controlled, the exerciser is guaranteed to rotate in a limiting mode when performing rotary exercise on the rotary disc 15, damage and damage caused by the fact that the rotation angle is too large are avoided, meanwhile, the rotating block 37 is driven by the rotary disc 15 to rotate, the extruding plate 36 is extruded at the same time, the extruding plate 36 contracts towards the baffle 35, so that the spring is extruded, the load of the exerciser is increased, the exercise effect of the exerciser is improved, when the rotating block 37 is separated from the extruding plate 36, the baffle 35 provides power for the extruding plate 36 through the assistance of the, accomplish the ease combination with this, avoid exerciser's intensity to lead to the fact muscle damage too big, insert spacing draw-in groove 26 in spacing fixture block 27 in addition, make driving cylinder 24 and fixed column 23 form spacing fixed, thereby prevent that the exerciser from leading to the fact accidental injury at the in-process upwards-lifting handrail 13 that rotates the exercise and drive carousel 15 up-and-down motion.

Claims

1. A vertical spacing rotator comprises a vertical column (10) and fixed columns (23) uniformly and fixedly arranged along the circumferential direction of the vertical column (10), and is characterized in that; the upper end of the upright post (10) is fixedly connected with an upright post disc (11), an upright post cavity (16) is arranged in the upright post (10), three equant upper rotating through grooves (17) are arranged on the circumferential surface of the upright post plate (11), the interior of the upper rotating through groove (17) is rotatably connected with a pressing mechanism, the circumferential surface of the lower end of the upright post (10) is provided with a trisected lower rotating through groove (20), the interior of the lower rotating through groove (20) is rotatably connected with a transmission mechanism, one end of the transmission mechanism far away from the upright post (10) is also fixedly connected with a transmission cylinder (24), the transmission cylinder (24) is sleeved on the fixed column (23), the fixed column (23) is also provided with a rotating mechanism for controlling the rotating angle of the turntable (15), the height position of the transmission cylinder (24) is adjusted by a transmission mechanism arranged in the upright post cavity (16) through the control of the pressing mechanism.

2. The vertical limit rotator of claim 1, wherein: go up to rotate and lead to groove (17) and be linked together with stand chamber (16), go up to rotate and lead to groove (17) and be close to the terminal surface down the forty-five degree angle of stand chamber (16) inside port, go up to rotate and lead to groove (17) and keep away from the terminal surface down the forty-five degree angle of stand chamber (16) inside port, it is located the lower tip in stand chamber (16) to rotate logical groove (20) down, it is close to the terminal surface down the forty-five degree angle of stand chamber (16) inside port to rotate logical groove (20) down, it keeps away from the terminal surface down the forty-five degree angle of stand chamber (16) inside port to rotate logical groove (20) down.

3. The vertical limit rotator of claim 2, wherein: pressing means including fixed connection last rotation axis (18) of leading to groove (17) side of rotating, last rotation axis (18) go up to rotate and be connected with connecting rod (12), connecting rod (12) set up to the circumferencial direction state of dispersing with stand (10) center, one end fixedly connected with handrail (13) of stand (10) are kept away from in connecting rod (12), handrail (13) are "bow" and are from the shape.

4. The vertical limit rotator of claim 3, wherein; drive mechanism includes connecting axle (19) of fixed connection inside stand chamber (16), the upper end fixed connection of connecting axle (19) is in the end department of connecting rod (12), lower extreme fixedly connected with bent lever (14) of connecting axle (19), pivot (21) under the side fixedly connected with of logical groove (20) rotates down, bent lever (14) cover is established under on pivot (21), below pivot (21) of bent lever (14) through connecting axle (19) up-and-down motion is as transmission section of thick bamboo (24) of axle drive bent lever (14) other end up-and-down motion.

5. The vertical limit rotator of claim 1, wherein: the rotating mechanism comprises two limiting groove groups which are arranged on the circumferential surface of the upper end of the fixed column (23), the two limiting groove groups are distributed at equal intervals along the circumferential direction of the upper surface of the fixed column (23), each limiting groove group comprises at least two limiting clamping grooves (26) which are arranged on the upper surface of the fixed column (23), a plurality of limiting clamping grooves (26) are uniformly distributed on the upper surface of the fixed column (23) at equal intervals, the total length of the arcs on the outer peripheral sides of the plurality of limiting clamping grooves (26) accounts for three fifths of the total length of the arcs on the outer peripheral sides of the fixing columns (23), the upper end of the transmission cylinder (24) is fixedly connected with limit blocks which are in one-to-one correspondence with the limit groove groups, the limiting block comprises a plurality of clamping blocks (31) fixedly connected to the inner peripheral side of the upper surface of the transmission cylinder (24), and a gap formed by every two clamping blocks (31) corresponds to each limiting clamping groove (26) one by one.

6. The vertical limit rotator of claim 5, wherein: the rotating mechanism further comprises two sliding blocks fixedly connected to the circumferential surface of the upper end of the fixed column (23), each sliding block is distributed in the middle of the interval of the limit groove group of the circumferential surface of the upper end of the fixed column (23), each sliding block comprises three sliding fixture blocks (34) fixedly arranged on the circumferential surface of the upper end of the fixed column (23), the three sliding fixture blocks (34) are distributed at the interval of the limit groove group at equal intervals, the upper surface of the transmission cylinder (24) is fixedly connected with two sliding blocks (32), the two sliding blocks (32) are in one-to-one correspondence with the two sliding blocks, sliding grooves (33) corresponding to the sliding fixture blocks (34) one to one are formed in the inner side, close to the fixed column (23), of the sliding blocks (32), and the sliding fixture blocks (34) can slide up and down in a reciprocating mode in the sliding.

7. The vertical limit rotator of claim 6, wherein: the rotating mechanism further comprises a bullet pressing block which is arranged in the upper surface of the transmission cylinder (24) and corresponds to the sliding block, the bullet pressing block comprises a baffle plate (35) fixedly connected to the outer side of the sliding block (32), the bottom surface of the baffle plate (35) is fixedly connected to the bottom surface of the transmission cylinder (24), the other end of the baffle plate (35) is slidably connected to the side surface of the angle scale (25), the angle scale (25) is sleeved on the upper end of the transmission cylinder (24), a side spring of the baffle plate (35) is connected with a pressing plate (36), a rotating block (37) is slidably arranged on the upper surface of the transmission cylinder (24), the upper end of the rotating block (37) is fixedly connected to the lower surface of the rotating disc (15), a pushing groove (28) is formed in the circumferential surface of the angle scale (25), a pushing block (30) is slidably arranged in the pushing groove (28), and a limiting clamping block (27) is fixedly connected to one end, close to the, the limiting clamping block (27) can be clamped inside the limiting clamping groove (26) through a gap formed by the two clamping blocks (31).