CN111888708A - shaper rings - Google Patents

Abstract

A plastic lifting ring, which includes a column and a sliding seat arranged on the column and sliding up and down along the axis of the column. The column is composed of four guide rails distributed in the four corners of a rectangle. And the right rear guide rail, the guide rail is a rectangular tube, and it is characterized in that the sliding seat includes a sliding seat main body, the sliding seat main body is a rectangular tube, and two vertically arranged bearing fixing shafts are arranged on the upper part of the sliding seat main body. The lower part is provided with two fixed bearing shafts arranged vertically. The fixed bearing shafts penetrate through the rectangular tube and are respectively provided with bearings at both ends. The larger the distance between them, the better the stability of the sliding seat. Bearings are fixed at both ends of each bearing fixing shaft, that is, eight bearings are arranged on the four sides of the upper and lower ends of the sliding seat to slide up and down along the four guide rails.

Description

shaper rings

technical field

The solution relates to the technical field of sports equipment, in particular to a multi-functional strength and stretching ring-type trainer for shaping muscles.

Background technique

The multifunctional stretching strength trainer in the prior art is provided with two cantilevers at the top of the column, and is characterized in that the sliding seat includes a channel steel-shaped seat body, and four flanges are fixedly arranged on both sides of the channel-steel-shaped seat body. Bearings and movable pulleys; the four guide rails are the guide rails of the sliding seat, including the left front guide rail and the left rear guide rail, the right front guide rail and the right rear guide rail, the distance between the left front guide rail and the left rear guide rail is equal to the diameter of the flange bearing, the right front guide rail and the right rear guide rail are equal to the diameter of the flange bearing. The distance between the rear guide rails is equal to the diameter of the flange bearing; the left and right distance between the four guide rails is equal to the distance between the flanges of the left and right flange bearings to ensure that the sliding seat will not tilt left and right or fall out of the guide rail.

SUMMARY OF THE INVENTION

The present scheme proposes a lifting ring-type training device for multi-functional strength and stretching of muscles, aiming at the deficiencies of the existing technology, which is hereinafter referred to as a shaping ring.

A plastic lifting ring, which includes a column and a sliding seat arranged on the column and sliding up and down along the axis of the column. The column is composed of four guide rails distributed in the four corners of a rectangle. and the right rear guide rail, the guide rail is a rectangular tube, which is characterized in that the sliding seat includes a sliding seat main body, the sliding seat main body is a rectangular tube, and two vertically arranged bearing fixing shafts are arranged on the upper part of the sliding seat main body. The lower part is provided with two fixed bearing shafts arranged vertically. The fixed bearing shafts penetrate through the rectangular tube and are respectively provided with bearings at both ends. The greater the distance between them, the better the stability of the sliding seat. Bearings are fixed at both ends of each bearing fixing shaft, that is, eight bearings are arranged on the four sides of the upper and lower ends of the sliding seat to slide up and down along the four guide rails.

The specific feature of this solution is that there are rotating arms on both sides of the column. The upper part of the column is provided with a rotating arm fixing seat, and the left and right sides of the rotating arm fixing seat are respectively provided with a reset pull pin and a rotating arm. The rotating arm includes a scale disc, a fifth pulley fixing seat, a first section of the rotating arm, a movable section positioning seat, a movable section scale seat, a second rotating arm section and a sixth pulley fixing seat. One end of the first section of the rotating arm is welded with a fifth pulley fixing seat and a scale disc. seat. The other end of the first section of the rotating arm is welded with a movable section positioning seat, one end of the second section of the rotating arm is welded with a movable section scale seat, the other end is provided with a sixth pulley fixing seat, and the eighth pulley is installed on the sixth pulley fixing seat. The seventh pulley is hingedly fixed with the movable section positioning seat and the movable section scale seat, so that the first section of the rotating arm and the second section of the rotating arm are connected.

By inserting the reset pull pins into different holes on the scale disc, the rotating arm can be rotated to adjust the distance between the end of the rotating arm and the ground. The pins are inserted into different holes on the scale base of the movable section and fixed with the positioning base of the movable section, and the bending degree between the first section of the rotating arm and the second section of the rotating arm is adjusted. By adjusting the height of the swivel arm and the curvature of the swivel arm, the exercise changes can be diversified, and actions such as pull-down, diagonal pull, flat pull, and pull-up can be achieved, and space can be saved when packing boxes.

A number of guide rail reinforcements are arranged between the middle and upper parts of the four guide rails to reinforce the inner side of the guide rails. Rail reinforcement seats are arranged on the front and rear sides of the lower end of the column.

Support legs are also provided, which are respectively fixed on the left and right sides of the upright column, and additional counterweights and resistance devices are arranged on the rear side of the upright column. The left and right sides of the upright column are respectively provided with support leg fixing seats. The support leg fixing seat is a rectangular tube with an outer chamfer at the upper end, and the lower end is provided with an opening hole for the support leg fixing seat.

The connecting end of the support leg is a rectangular tube, a positioning shaft of the support leg is arranged, and the lower end is an open slot for the support leg.

The support leg rotates around the support leg positioning shaft, the support leg opening slot wraps the support leg fixing seat, the support leg positioning shaft is stuck in the opening hole of the support leg fixing seat opening hole, and the support leg fixing seat can be rotated through the support leg opening slot Enter the support leg, and use the lever principle to make the upper end tube wall of the support leg fixing seat contact the inner tube wall of the upper end of the connecting end of the support leg, so that the column is fixedly connected to the support leg. The supporting leg and the supporting leg fixing seat have matching concentric circular holes, which can be reinforced by hand-tightening bolts after installation, so that the supporting leg and the supporting leg fixing seat cannot be disengaged and the gap is eliminated. The advantage of this design is that it can be disassembled during packaging, reducing the packaging volume of the product, and no other tools are required for installation, making the installation more convenient.

The four guide rails are the guide rails of the sliding seat, including the left front guide rail and the right front guide rail, the left rear guide rail and the right rear guide rail. The distance between the two adjacent guide rails is equal to the diameter of the bearing to ensure that the sliding seat will not fall out of the guide rail, and The arrangement of eight bearings, four up and down, makes the guide rail and the sliding seat fit together, and the sliding seat can slide up and down normally even if there is a little gap.

A counterweight support plate is fixedly arranged on the sliding seat, and the counterweight supporting plate and the pull ring are located on the same side of the column, and the pull ring drives the sliding seat to move up and down through the steel cable.

The front side of the main body of the sliding seat is provided with a counterweight supporting plate fixing seat, the counterweight supporting plate fixing seat is a rectangular tube, the front upper end is provided with an opening groove of the counterweight supporting plate fixing seat, and the opening groove of the counterweight supporting plate fixing seat is provided with a positioning hole. The counterweight supporting plate is composed of a counterweight supporting plate frame, a counterweight supporting plate support tube and a counterweight supporting plate positioning shaft. The supporting tube of the counterweight supporting plate can be inserted into the counterweight supporting plate fixing seat obliquely, the positioning shaft of the counterweight supporting plate can be clamped in the positioning hole on the opening groove of the counterweight supporting plate fixing seat, and the supporting tube of the counterweight supporting plate can be inserted into the counterweight supporting plate fixing seat and wound around it. The positioning shaft of the weight support plate pivots, and the lever principle is used to make the upper end tube wall of the weight support plate support tube contact with the inner tube wall of the upper end of the weight support plate fixing seat, so that the weight support plate and the sliding seat are fixedly connected. There is a hole at the lower end of the counterweight support plate fixing seat. By tightening the hand-tightening bolts, the hand-tightening bolts can reach the bottom surface of the counterweight supporting plate supporting tube, so that the counterweight supporting plate fixing seat and the counterweight supporting plate supporting tube cannot be disengaged and the gap can be eliminated. The advantage of this design is that it can be disassembled during packaging, reducing the packaging volume of the product, and no other tools are required for installation, making the installation more convenient.

The scheme also includes a pulley block arranged on the column, the sliding seat and the rotating arm, the upper end of the wire rope surrounding the pulley block is fixedly connected with a pull ring, and the other end of the wire rope is fixed on the column or the sliding seat after passing through the pulley on the sliding seat.

The beneficial effect of this solution is that the sliding seat is provided with common bearings in four directions, front, rear, left, right, and four sides. Compared with the design of four flange bearings on two surfaces, eight common bearings are provided on four surfaces, which cooperate with the column guide rails. The precision requirements are lower, the production cost is lower, and the stability of the sliding seat when sliding up and down is better. The swivel arms set on both sides of the column replace the cantilever set on the top of the column. Its advantages are that the swivel arm is set on both sides of the column, which reduces the final actual height of the product in disguise, and solves the problem of the product being super high in actual use in some scenarios; the swivel arm is more flexible than the cantilever. The angle of the rotating arm, in addition to pulling down, you can also do horizontal pulling, diagonal pulling, lifting and other actions. Changed and optimized the combination of pulley blocks. Added 1/5 weight design, added extra suspension weight and extra resistance design, optimized the design of short-circuit cable when 1/2 weight.

Description of drawings

Fig. 1 is the front front view of this scheme; Fig. 2 is the top view of Fig. 1; Fig. 3 is the left side view of Fig. 1; Fig. 4 is the left rear side perspective view of Fig. 1; 6 is a schematic diagram of the positional relationship between the support leg fixing seat and the column; FIG. 7 is a component diagram of the sliding seat; FIG. 8 is a schematic diagram of the connection between the sliding seat and the counterweight support plate; Fig. 11 is the schematic diagram of the installation of the wire rope and the pulley block; Fig. 12 is the schematic diagram of the 1/2 force of the pulley block; Fig. 13 is the schematic diagram of the pulley block 1/3 force; Fig. 14 is the pulley block Schematic diagram of 1/4 force; Figure 15 is a schematic diagram of 1/5 force of a pulley block; Figure 16 is a schematic diagram of an additional counterweight; Figure 17 is a schematic diagram of an additional increase of resistance.

In the figure: 1-support leg; 2-support leg positioning shaft; 3-support leg fixing seat; 4-rail reinforcement seat; 5-left front guide rail; 6-right front guide rail; 7-left rear guide rail; 8-right rear guide rail; 9-rail reinforcement; 10-first pulley fixing seat; 11-lower hanging nose; 12-dumbbell rod fixing seat; 13-slide seat body; 14-bearing fixing shaft; 15-bearing; 16-second pulley fixing seat ; 17- upper end hanging nose; 18- counterweight supporting plate fixing seat; 19- counterweight supporting plate frame; 20- counterweight supporting plate support pipe; 21- counterweight supporting plate positioning shaft; 22- third pulley fixing seat; 23- fourth Pulley fixing seat; 24-Rotating arm fixing seat; 25-Reset pull pin; 26-Scale disc; 27-Fifth pulley fixing seat; 28-Rotating arm first section; Scale seat; 31-pin; 32-second section of rotating arm; 33-sixth pulley fixed seat; 34-first pulley; 35-second pulley; 36-third pulley; 37-fourth pulley; 38- 5th pulley; 39-sixth pulley; 40-seventh pulley; 41-eighth pulley; 42-ninth pulley; 43-pull ring; 44-upper wire; 45-lower wire; 46-wire connection 47-hand screw bolt; 48-dumbbell bar; 49-dumbbell plate; 50-elastic rope; 51-supporting leg opening slot; 52-supporting leg fixing seat opening hole; 53-counterweight pallet fixing seat opening slot.

Detailed ways

As shown in Figure 1, a plastic lifting ring includes a column and a sliding seat arranged on the column and sliding up and down along the axis of the column. The column is composed of four guide rails distributed in the four corners of the rectangle. The left front guide rail 5 and the right front guide rail 6, the left rear guide rail 7 and the right rear guide rail 8, the guide rails are rectangular tubes, the sliding seat includes the sliding seat main body 13, the sliding seat main body 13 is a rectangular tube, and the upper part of the sliding seat main body 13 is provided with two vertically arranged The bearing fixed shaft 14, two vertically arranged bearing fixed shafts 14 are arranged at the lower part of the sliding seat main body 13, the bearing fixed shafts 14 pass through the rectangular tube and are respectively provided with bearings 15 at both ends, which are placed on the opposite side of the sliding seat main body. The upper and lower bearing fixed shafts 14 are parallel, and the greater the distance between the two bearing fixed shafts 14, the better the stability of the sliding seat. Bearings 15 are fixed at both ends of each bearing fixing shaft 14 , that is, a total of eight bearings 15 are arranged on the four sides of the upper and lower ends of the sliding seat to slide up and down along the four guide rails.

There are rotating arms on both sides of the column. 4, 9 and 10, the rotating arm includes a scale disc 26, a fifth pulley fixed seat 27, a first section of the rotating arm 28, a movable section positioning seat 29, a movable section scale seat 30, and a second section 32 of the rotating arm and the sixth pulley fixing seat 33 . The upper part of the column is provided with a rotating arm fixing seat 24, and the left and right sides of the rotating arm fixing seat 24 are respectively installed with a reset pull pin 25 and a rotating arm. One end of the first section 28 of the rotating arm is welded with the fifth pulley fixing seat 27 and the scale disc 26, the sixth pulley 39 is mounted on the fifth pulley fixing seat 27, the fifth pulley fixing seat 27, the scale disc 26 and the sixth pulley 39 is coaxially hinged on the rotating arm fixing base 24 . The other end of the first section 28 of the rotating arm is welded with a movable section positioning seat 29, one end of the second section 32 of the rotating arm is welded with a movable section scale seat 30, and the other end is provided with a sixth pulley fixing seat 33, and the eighth pulley 41 is installed on the sixth on the pulley fixing seat 33 . The seventh pulley 40 is hingedly fixed with the movable joint positioning seat 29 and the movable joint scale seat 30 , so that the first section 28 of the rotating arm and the second section 32 of the rotating arm are connected.

As shown in FIG. 1 , by inserting the reset pull pins 25 into different holes on the scale disc 26 , the rotating arm can be rotated to adjust the distance between the end of the rotating arm and the ground.

As shown in FIG. 10 , the pins 31 are inserted into different holes on the movable joint scale base 30 and fixed with the movable joint positioning base 29 , and the bending degree between the first section 28 of the rotating arm and the second section 32 of the rotating arm is adjusted. . By adjusting the height of the swivel arm and the curvature of the swivel arm, the exercise changes can be diversified, and actions such as pull-down, diagonal pull, flat pull, and pull-up can be achieved, and space can be saved when packing boxes.

As shown in FIG. 4 , between the upper and middle parts of the four guide rails, a plurality of guide rail reinforcement members 9 are arranged to reinforce the inner side of the guide rails. Rail reinforcement seats 4 are arranged on the front and rear sides of the lower end of the column.

Support legs are also provided, which are respectively fixed on the left and right sides of the upright column, and additional counterweights and resistance devices are arranged on the rear side of the upright column. As shown in FIG. 6 , the left and right sides of the upright column are respectively provided with support leg fixing bases 3 . The support leg fixing seat 3 is a rectangular tube with an outer chamfer at the upper end, and the lower end is provided with an opening hole 52 of the support leg fixing seat.

As shown in FIG. 5 , the connecting end of the support leg 1 is a rectangular tube, a support leg positioning shaft 2 is provided, and the lower end is the support leg opening slot 51 .

As shown in Figures 1 and 4, the support leg 1 rotates around the support leg positioning shaft 2, the support leg opening groove 51 wraps the support leg fixing seat 3, and the support leg positioning shaft 2 is stuck in the opening of the support leg fixing seat opening hole 52 In the hole, the supporting leg fixing seat 3 can be rotated into the supporting leg 1 through the supporting leg opening slot 51, and the lever principle is used to make the upper end tube wall of the supporting leg fixing seat 3 contact with the inner tube wall of the upper end of the connecting end of the supporting leg 1, so that the The upright column is fixedly connected with the support leg 1 . The supporting leg 1 and the supporting leg fixing base 3 have matching concentric circular holes, which can be reinforced by hand-tightening the bolts 47 after installation, so that the supporting leg 1 and the supporting leg fixing base 3 cannot be disengaged and the gap is eliminated. The advantage of this design is that it can be disassembled during packaging, reducing the packaging volume of the product, and no other tools are required for installation, making the installation more convenient.

As shown in Figure 7, the four guide rails are the guide rails of the sliding seat, including the left front guide rail 5 and the right front guide rail 6, the left rear guide rail 7 and the right rear guide rail 8, and the distance between the two adjacent guide rails is equal to the diameter of the bearing 15, In order to ensure that the sliding seat will not fall out of the guide rail, and the eight bearings 15 are arranged four times up and down, the guide rail and the sliding seat are matched, and the sliding seat can slide up and down normally even if there is a little gap.

A counterweight support plate is fixedly arranged on the sliding seat, and the counterweight supporting plate and the pull ring are located on the same side of the column, and the pull ring drives the sliding seat to move up and down through the steel cable.

As shown in FIG. 8 , the counterweight supporting plate is composed of a counterweight supporting plate frame 19, a counterweight supporting plate support tube 20 and a counterweight supporting plate positioning shaft 21. The counterweight supporting plate supporting tube 20 is a rectangular tube with a chamfered front end, and the upper end is provided with a counterweight supporting plate Board positioning shaft 21 . The front side of the main body 13 of the sliding seat is provided with a counterweight supporting plate fixing base 18, the counterweight supporting plate fixing base 18 is a rectangular tube, and the front upper end is provided with an opening groove 53 of the counterweight supporting plate fixing base, and the opening groove 53 of the counterweight supporting plate fixing base is provided with positioning holes . The counterweight supporting plate support tube 20 can be inserted into the counterweight supporting plate fixing seat 18 obliquely, the counterweight supporting plate positioning shaft 21 can be stuck in the positioning hole on the opening slot 53 of the counterweight supporting plate fixing seat, and the counterweight supporting plate supporting tube 20 can be inserted into the counterweight supporting plate and fixed. The seat 18 is pivoted around the positioning shaft 21 of the counterweight supporting plate, and the lever principle is used to make the upper end tube wall of the counterweight supporting plate support tube 20 contact with the inner tube wall of the upper end of the counterweight supporting plate fixing seat 18, so that the counterweight supporting plate and the sliding seat are fixed. connect. There is a hole at the lower end of the counterweight supporting plate fixing seat 18. By tightening the hand-tightening bolts 47, the hand-tightening bolts 47 can be pushed to the bottom surface of the counterweight supporting plate supporting pipe 20, so that the counterweight supporting plate fixing seat 18 and the counterweight supporting plate supporting pipe 20 cannot be disengaged. and eliminate gaps. The advantage of this design is that it can be disassembled during packaging, reducing the packaging volume of the product, and no other tools are required for installation, making the installation more convenient.

The scheme also includes a pulley block arranged on the column, the sliding seat and the rotating arm, the upper end of the wire rope surrounding the pulley block is fixedly connected with a pull ring, and the other end of the wire rope is fixed on the column or the sliding seat after passing through the pulley on the sliding seat. As shown in FIGS. 7 and 8 , an upper end hanging nose 17 is provided in the middle of the rear side of the sliding seat main body 13 . The upper end of the sliding seat main body 13 is fixedly provided with a second pulley fixing seat 16 . The second pulley fixing seat 16 is two steel plates on which the dumbbell bar fixing seat 12 is fixedly arranged, and the third pulley 36 and the fifth pulley 38 are installed.

As shown in FIGS. 2 and 4 , the top of the column is provided with a fourth pulley fixing base 23 , and two first pulleys 34 are installed on the fourth pulley fixing base 23 . A third pulley fixing seat 22 is provided on the rear side of the middle part of the column, and a fourth pulley 37 is installed on the third pulley fixing seat 22 . A first pulley fixing seat 10 , a lower end hanging nose 11 and a dumbbell bar fixing seat 12 are arranged on the guide rail reinforcement seat 4 on the rear side of the column, and the second pulley 35 is installed on the first pulley fixing seat 10 .

As shown in FIG. 11 , the cable connecting seat 46 is suspended at the center of the column, and the ninth pulley 42 is installed inside the cable connecting seat 46 . The upper end wire 44 wraps around the ninth pulley 42 in the middle position, and after wrapping the first pulley 34 at both ends, bypasses the sixth pulley 39 and penetrates into the first section 28 of the rotating arm, and bypasses the seventh pulley 40 and passes through the first section of the rotating arm. The two sections 32 are finally wrapped around the eighth pulley 41 , and the pull rings 43 are respectively installed on both ends of the upper end wire rope 44 .

As shown in FIG. 12 , the connecting end of the lower end wire rope 45 is connected to the lower end of the wire rope connecting seat 46 , and the other end wraps around the third pulley 36 . The fixed end of the lower wire rope 45 first bypasses the fourth pulley 37, then bypasses the second pulley 35, and is then connected and fixed on the upper hanging nose 17. At this time, the lower end wire 45 and the sliding seat form a closed loop. When the user stands on the counterweight support plate and pulls the left and right pull rings 43 with both hands, the sliding seat will rise, and the lower end wire 45 rotates around the pulley block, and all pulleys are guided at this time. Pulley, there is no moving pulley to save labor, if the user's weight is G, G=2F, F=1/2G, that is, the user's pulling force is 1/2 of his own body weight.

As shown in FIG. 13 , the fixed end of the lower wire rope 45 bypasses the fourth pulley 37 and is fixed on the lower end hanging nose 11. At this time, the lower end wire 45 is connected and fixed to the column, the third pulley 36 is an effective movable pulley, and the fourth pulley 37 is the guide pulley, when the user stands on the counterweight support plate, pulls the left and right pull rings 43 with both hands, the user's weight is G, G=3F, F=1/3G, that is, the user's pulling force is 1 of his own body weight. /3.

As shown in FIG. 14 , the fixed end of the lower wire rope 45 bypasses the fourth pulley 37 and is fixed on the upper hanging nose 17. At this time, the lower wire rope 45 is connected and fixed to the sliding seat, and the third pulley 36 and the fourth pulley 37 are the same In order to move the pulley effectively, when the user stands on the counterweight support plate and pulls the left and right pull rings 43 with both hands, the user's weight is G, G=4F, F=1/4G, that is, the user's pulling force is 1/1 of his own body weight. 4.

As shown in FIG. 15 , the fixed end of the lower wire rope 45 first bypasses the fourth pulley 37, and then bypasses the fifth pulley 38 to be connected and fixed on the hanging nose of the third pulley fixing seat 22. At this time, the lower end wire 45 is connected to the column. The connection is fixed, the third pulley 36, the fourth pulley 37 and the fifth pulley 38 are all effective moving pulleys. When the user stands on the counterweight support plate, pulls the left and right pull rings 43 with both hands, the user's weight is G, G=5F, F=1/5G, that is, the pulling force used by the user is 1/5 of his own body weight.

As shown in FIG. 16 , a dumbbell rod 48 can be installed on the dumbbell rod fixing base 12 , and the dumbbell rod 48 at the upper end is connected with the sliding base, and can hang dumbbell plates 49 or other counterweights to add extra counterweight.

As shown in FIG. 17 , a dumbbell rod 48 can be installed on the dumbbell rod fixing base 12 , the dumbbell rod 48 at the upper end is connected with the sliding seat, and the dumbbell rod 48 at the lower end is connected with the upright column, and the elastic rope 50 can be suspended to increase the extra tensile resistance , to increase the difficulty factor of the exercise.

Claims (10)

1. A plastic lifting ring, which includes a column and a sliding seat arranged on the column and sliding up and down along the axis of the column. The column is composed of four guide rails distributed in the four corners of the rectangle. The left front guide rail and the right front guide rail, left The rear guide rail and the right rear guide rail, the guide rail is a rectangular tube, which is characterized in that the sliding seat includes a sliding seat main body, the sliding seat main body is a rectangular tube, and two vertically arranged bearing fixing shafts are arranged on the upper part of the sliding seat main body. The lower part of the main body is provided with two fixed bearing shafts arranged vertically, the fixed bearing shafts penetrate through the rectangular tube and are respectively provided with bearings at both ends, and the upper and lower two fixed bearing shafts placed on the opposite sides of the main body of the sliding seat are parallel; each bearing Bearings are fixed at both ends of the fixed shaft, that is, eight bearings are arranged on the four sides of the upper and lower ends of the sliding seat to slide up and down along the four guide rails. 2. The plastic lifting ring according to claim 1, characterized in that a rotating arm is provided on both sides of the upright column. 3 . The plastic lifting ring according to claim 2 , wherein a rotating arm fixing seat is arranged on the upper part of the column, and a reset pull pin and a rotating arm are installed on the left and right sides of the rotating arm fixing seat. 4 . 4. The shaping ring according to claim 2 is characterized in that the rotating arm comprises a scale disc, a fifth pulley fixing seat, the first section of the rotating arm, the positioning seat of the movable section, the scale seat of the movable section, and the second section of the rotating arm and the sixth pulley fixing seat; the fifth pulley fixing seat and the dial disc are welded on one end of the first section of the rotating arm, the sixth pulley is mounted on the fifth pulley fixing seat, the fifth pulley fixing seat, the dial disc and the sixth pulley It is coaxially hinged on the fixed seat of the rotating arm; the other end of the first section of the rotating arm is welded with a movable section positioning seat, one end of the second section of the rotating arm is welded with a movable section scale seat, and the other end is provided with a sixth pulley fixed seat and an eighth pulley. It is installed on the sixth pulley fixed seat; the seventh pulley is hingedly fixed with the movable section positioning seat and the movable section scale seat, so that the first section of the rotating arm and the second section of the rotating arm are connected. 5 . The plastic lifting ring according to claim 1 , wherein a plurality of guide rail reinforcements are arranged between the middle and upper parts of the four guide rails to reinforce the inner side of the guide rails; guide rail reinforcement seats are arranged on the front and rear sides of the lower end of the column. 6 . 6 . The shaping lifting ring according to claim 1 , wherein the left and right sides of the upright column are respectively provided with support leg fixing seats; the support legs are fixedly arranged in the support leg fixing seat. 7 . 7. The shaping ring according to claim 6, characterized in that the connecting end of the supporting leg is a rectangular tube, is provided with a supporting leg positioning shaft, and the lower end is an opening groove for the supporting leg; the supporting leg fixing seat is an outer chamfer at the upper end. The lower end is provided with an opening hole for the support leg fixing seat; the support leg pivots with the support leg positioning shaft as the center of the circle, the support leg opening groove covers the support leg fixing seat, and the support leg positioning shaft is clamped in the support leg fixing seat opening hole. In the opening hole, the supporting leg fixing seat can be rotated into the supporting leg through the supporting leg opening slot, so that the upper end tube wall of the supporting leg fixing seat contacts the inner tube wall of the upper end upper end of the connecting end of the supporting leg, so that the column is fixedly connected to the supporting leg. 8 . The plastic lifting ring according to claim 1 , wherein a counterweight support plate is fixedly arranged on the sliding seat, the counterweight supporting plate and the pull ring are located on the same side of the column, and the pull ring drives the sliding seat to move up and down through the steel cable. 9 . 9. The shaping ring according to claim 8, characterized in that a counterweight supporting plate fixing seat is provided on the front side of the main body of the sliding seat, the counterweight supporting plate fixing seat is a rectangular tube, and the front upper end is provided with an opening slot for the counterweight supporting plate fixing seat, There is a positioning hole on the opening slot of the fixed seat of the counterweight supporting plate; the counterweight supporting plate is composed of a counterweight supporting plate frame, a supporting pipe of the counterweight supporting plate and a positioning shaft of the counterweight supporting plate. Counterweight supporting plate positioning shaft; the counterweight supporting plate support tube can be inserted into the heavy supporting plate fixing seat obliquely, the counterweight supporting plate positioning shaft can be stuck in the positioning hole on the opening groove of the counterweight supporting plate fixing seat, and the counterweight supporting plate supporting tube can be inserted into the counterweight supporting plate The fixed seat is pivoted around the positioning axis of the counterweight support plate, and the lever principle is used to make the upper end tube wall of the counterweight support plate support tube contact with the inner tube wall of the upper end of the counterweight support plate fixing seat, so that the counterweight support plate and the sliding seat are fixedly connected; There is a hole at the lower end of the weight support plate fixing seat. By tightening the hand-tightening bolts, the hand-tightening bolts can reach the bottom surface of the counterweight supporting plate support tube, so that the counterweight supporting plate fixing seat and the counterweight supporting plate supporting tube cannot be disengaged and the gap can be eliminated. 10. The plastic lifting ring according to claim 1, characterized in that it further comprises a pulley block arranged on the upright column, the sliding seat and the rotating arm, the upper end of the wire rope surrounding the pulley block is fixedly connected with a pull ring, and the wire rope passes through the sliding seat. The other end of the pulley is fixed on the column or the sliding seat.

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