CN210751082U

CN210751082U - Multifunctional stretching force training device

Info

Publication number: CN210751082U
Application number: CN201921095344.XU
Authority: CN
Inventors: 郎冲
Original assignee: Shandong Hanpin Health Technology Co ltd
Current assignee: Shandong Hanpin Health Technology Co ltd
Priority date: 2019-07-14
Filing date: 2019-07-14
Publication date: 2020-06-16
Anticipated expiration: 2029-07-14

Abstract

The utility model provides a multi-functional tensile strength training ware, it includes the stand and sets up the sliding seat that slides from top to bottom along the stand axial on the stand to and set up the assembly pulley on stand and sliding seat, wrap up the rope one end fixedly connected with handle of assembly pulley, the rope is fixed on the stand through the pulley back other end on the sliding seat, characterized by fixes being provided with the counter weight layer board on the sliding seat, the counter weight layer board is located the homonymy of stand with the handle, the handle drives the sliding seat through the rope and reciprocates.

Description

Multifunctional stretching force training device

Technical Field

This scheme relates to sport equipment technical field, specifically says so a multi-functional tensile strength training ware.

Background

At present, in most of stretchers and strength training amount in the market, a plurality of groups of weight plates are configured to meet the weight requirement of one product. For the user, on one hand, the exercise cost is increased, and on the other hand, a large space is also needed to meet the requirements of different types of functional components such as pushing-up and pulling-down, and even a plurality of instruments are needed to complete the exercise effect of the muscles of the whole body. For some users, especially women and the elderly, most of the strength training apparatuses are not suitable for their use.

Therefore, in order to solve the above problems, a multifunctional tensile strength trainer which is low in manufacturing cost, simple to use, high in functionality and suitable for various people needs to be designed.

SUMMERY OF THE UTILITY MODEL

This scheme is not enough to prior art, provides a multi-functional tensile strength training ware.

The technical measures adopted by the scheme are as follows: the utility model provides a multi-functional tensile strength training ware, it includes the stand and sets up the sliding seat that slides from top to bottom along the stand axial on the stand to and set up the assembly pulley on stand and sliding seat, wrap up the rope one end fixedly connected with handle of assembly pulley, the rope is fixed on the stand through the pulley back other end on the sliding seat, characterized by fixes being provided with the counter weight layer board on the sliding seat, the counter weight layer board is located the homonymy of stand with the handle, the handle drives the sliding seat through the rope and reciprocates.

The concrete characteristics of this scheme are, are provided with the cantilever at the stand top. Two cantilevers are arranged on the top of the upright post.

The base is composed of a base frame, a base platform and a base upright post connecting plate fixed on the base frame, and the upright posts are fixed on the base.

The stand is including four guide rails that distribute in the rectangle four corners, and the guide rail is square pipe. The four guide rails are provided with guide rail reinforcing frames wrapped on the outer edges of the guide rails, the lower ends of the four guide rails are fixed on the stand column fixing seats, and the stand column fixing seats are fixedly connected with the base stand column connecting plates fixed on the bottom surfaces of the base platforms through the stand column fixing seats and the base platforms through screws.

The sliding seat comprises a channel steel-shaped seat body, and four flange bearings and movable pulleys are fixedly arranged on two side faces of the channel steel-shaped seat body. The four guide rails are guide rails of the sliding seat and comprise a left front guide rail, a left rear guide rail, a right front guide rail and a right rear guide rail, wherein the distance between the left front guide rail and the left rear guide rail is equal to the diameter of the flange bearing, and the distance between the right front guide rail and the right rear guide rail is equal to the diameter of the flange bearing; the left and right distances between the four guide rails are equal to the distance between the flanges of the flange bearings on the left and right sides, the left and right distances between the left front guide rail and the right front guide rail are equal to the distance between the flanges of the flange bearings on the left and right sides, and the left and right distances between the left rear guide rail and the right rear guide rail are equal to the distance between the flanges of the flange bearings on the left and right sides, so that the sliding seat cannot incline left and right or fall out of the guide rails.

A counterweight support plate rotating bracket and a movable pulley fixing seat are also arranged on the channel steel-shaped seat body; a counterweight supporting plate cross brace is fixed on the counterweight supporting plate rotating support, and a counterweight supporting plate is fixed on the counterweight supporting plate cross brace; a sliding seat steel cable hanging ring is fixedly arranged on the movable pulley fixing seat.

Four flange bearings are fixed on two shafts which transversely penetrate through and are fixed on the channel steel-shaped seat body, the movable pulley fixing seat is fixed at the middle position of the upper end of the inner side of the channel steel-shaped seat body, and the movable pulley is installed inside the movable pulley fixing seat.

3 nuts are welded on the outer side of the bottom surface of the channel steel-shaped seat body, and the distance between the middle sliding seat connecting nut and the pin seat at the upper end of the sliding seat at the upper end is equal to the distance between the centers of holes of the pin seats at the lower end of the sliding seat at the lower end. The counterweight support plate rotating support is a U-shaped long groove with rubber pads at two ends, two through holes are arranged on the bottom surface of the U-shaped long groove of the counterweight support plate rotating support, two nuts concentric with the through holes are arranged on the outer sides of the through holes, the rotating support is connected with the nuts and the reset spring pull rod fixing nuts, and the hole center distance of the two through holes is equal to the hole center distance between each nut on the channel steel-shaped seat body; the counterweight support plate rotating support is fixed on a sliding seat connecting nut in the middle of the channel steel-shaped base body 7 by a bolt penetrating through a hole at the lower end and a rotating support connecting nut, and can rotate by taking the bolt as a shaft. The reset spring pull rod is a pull rod which passes through a screw rod by a pin shaft and can be reset by a spring, the screw rod of the reset spring pull rod passes through a hole at the upper end of the counterweight support plate rotating bracket and is fixed on a reset spring pull rod fixing nut, and the pin shaft of the reset spring pull rod is inserted into a pin seat at the upper end of a sliding seat at the upper end of the channel steel-shaped seat body; at the moment, the pedal of the balance weight supporting plate faces upwards; when the pin shaft of the return spring pull rod is pulled out, the rotating support of the balance weight support plate rotates by 180 degrees, as shown in fig. 6, the pin shaft of the return spring pull rod is inserted into the pin seat at the lower end of the sliding seat at the lower end of the channel steel-shaped seat body, and the seat plate of the balance weight support plate is upward.

The front of counter weight layer board is the running-board, and the reverse side is the seat, fixes on counter weight layer board stull, and counter weight layer board stull is fixed in counter weight layer board runing rest and is close to the position of lower extreme, and this is for when counter weight layer board runing rest is rotatory, and the counter weight layer board highly changes apart from base platform.

The top of the upright post is fixedly provided with a height adjusting part fixing seat and a cantilever fixing seat, one end of the cantilever is hinged on the cantilever fixing seat, and a cantilever height adjusting cross shaft is arranged on the cantilever. The height adjusting piece is a U-shaped piece with three guide clamping grooves, is hinged on the height adjusting piece fixing seat through a shaft and can pivot by taking the shaft as a center. The lifting angle of the cantilever can be adjusted by clamping the cantilever height adjusting cross shaft into different guide clamping grooves of the height adjusting part fixing seat, namely the use height is adjusted.

The beneficial effect of this scheme is: by changing the number of the steel cable winding pulley blocks, 1/2, 1/3 and 1/4 of the weight of a user are used as counterweights on the premise of not increasing the number of the steel cables, so that the user can easily do actions which cannot be realized on horizontal bars, lifting rings and other instruments. And the lifting angle of the cantilever is adjusted to realize the adjustment of the whole height, so that the limb stretching and strength training characteristics are achieved, and the training device is suitable for the exercise of various people. The balance weight supporting plate and the handle are positioned on the same side of the upright column, and when a user is positioned on the balance weight supporting plate, a closed force is formed by the user, the handle and the pulley block, namely, the user himself does part of exercise. When the training device is used on a pedal plate standing on a sliding seat, and the pull rods on the left side and the right side are pulled by hands, the hands pull down, the legs stretch straight, and the training device can perform strength training motions such as forward pulling, backward pulling, forward pushing, cross supporting and the like on a horizontal bar or a lifting ring and other instruments; the arms are straightened, the legs are bent and squat, and the leg strength training exercises such as weight squat and rise and the like or the stretching and traction action of the whole body can be performed. When a user sits on the seat plate of the sliding seat, the user can do strength training exercises such as sit-up, push-up and the like; or stretching and pulling actions of the neck, back and waist. Meanwhile, the device has the advantages that the positions of the pedal plate and the seat plate of the balance weight supporting plate are adjusted, and various movement modes based on standing, squatting and sitting postures are realized. And adjusting the uplifting angle of the cantilever to change the height of the cantilever so as to meet the requirements of users with different heights. Through guide rail reinforcement frame and stand fixing base, increased the stability and the indeformable of four guide rails to inject the distance between the guide rail, with flange bearing's cooperation, can eliminate the sliding seat completely and reciprocate the clearance between the time and the guide rail. The multifunctional product has the functions of replacing a plurality of products, and has the advantages of small occupied area, simpler structure, light weight and effectively reduced production and manufacturing cost. For family users, the scheme integrates exercise and health care, and can meet the health requirements of strength exercise and stretching traction of all family members.

Drawings

FIG. 1 is a front elevational view of the present solution; FIG. 2 is a left side view of FIG. 1; FIG. 3 is a top view of FIG. 1; FIG. 4 is a bottom view of FIG. 1; FIG. 5 is a component view of a standing position; FIG. 6 is a component view of FIG. 5 adjusted to a seated position; FIG. 7 is a perspective view of a seated position; fig. 8 is a partial enlarged view of a portion a of fig. 7; FIG. 9 is a schematic diagram of the forces of the pulley block 1/3; FIG. 10 is a schematic diagram of the forces of pulley block 1/2; fig. 11 is a schematic diagram of the forces of the pulley block 1/4.

In the figure: 1-a base frame; 2-base upright column connecting plate; 3-a base platform; 4-upright post fixing seat; 5-guide rail reinforcing frame; 6-left front rail; 7-channel steel shaped seat body; 8-flange bearing; 9-movable pulley fixing seats; 10-sliding seat steel cable hanging ring; 11-a counterweight support plate rotating bracket; 12-a counterweight supporting plate cross brace; 13-a counterweight support plate; 14-upper end steel cable hanging ring; 15-cantilever fixing base; 16-left cantilever; 17-right cantilever; 18-left guide pulley fixing seat; 19-right guide pulley fixing seat; 20-left fixed pulley fixing seat; 21-right fixed pulley fixing seat; 22-cantilever height adjustment cross axis; 23-left and right cantilever connectors; 24-a height adjustment member holder; 25-a height adjustment; 26-a movable pulley; 27-left guide pulley; 28-right guide pulley; 29-left fixed pulley; 30-right fixed pulley; 31-a gravity adjusting fixed pulley fixing seat; 32-a gravity adjusting fixed pulley; 33-the movable pulley is connected with a steel cable; 34-steel cable connecting hook; 35-the left fixed pulley is connected with a steel cable; 36-the right fixed pulley is connected with a steel cable; 37-left handle; 38-right handle; 39-sit-up foot hook device; 40-a return spring pull rod; 41-a pin boss at the upper end of the sliding seat; 42-sliding seat connecting nut; 43-sliding seat lower end pin seat; 44-screws; 47-left rear rail; 48-right front rail; 49-right rear guide rail.

Detailed Description

As shown in fig. 1, a multifunctional tension force trainer comprises a column, a sliding seat arranged on the column and sliding up and down along the axial direction of the column, and a pulley block arranged on the column and the sliding seat, wherein one end of a rope wrapping the pulley block is fixedly connected with a handle, and the other end of the rope passes through the pulley on the sliding seat and is fixed on the column. Two cantilevers are arranged on the top of the upright post. The base is further arranged, and the upright posts are fixed on the base.

As shown in fig. 4, the base is composed of a base frame 1, a base platform 3 and a base upright connecting plate 2 fixed on the base frame 1. The sit-up foot hook 39 is fixed on the rear side of the base.

As shown in fig. 7-8, the upright column includes four guide rails distributed at four corners of a rectangle, a left front guide rail 6, a left rear guide rail 47, a right front guide rail 48, and a right rear guide rail 49, and the guide rails are square tubes. Guide rail reinforcing frames 5 wrapped on the outer edges of the guide rails are arranged on the four guide rails. As shown in fig. 3-4, the lower ends of the four guide rails are fixed on the upright fixing seat 4, and the upright fixing seat 4 is fixedly connected with the base upright connecting plate 2 fixed on the bottom surface of the base platform through the upright fixing seat 4 and the base platform 3 by screws. The stand is fixed on the base, is for convenient shift position, under the prerequisite of not considering shift position, and the stand can the direct fixation in wall or ground, and stability can be better.

As shown in fig. 5 to 6, the sliding seat includes a channel-steel-shaped seat body 7, and four flange bearings 8 are fixedly disposed on two side surfaces of the channel-steel-shaped seat body 7. The flange bearing 8 is a common standard part and is a bearing with a flange disc on one side of the rim of the outer ring. As shown in fig. 1-3, four guide rails are the guide rails of the sliding seat, including a left front guide rail 6 and a left rear guide rail 47, a right front guide rail 48 and a right rear guide rail 49, the distance between the left front guide rail 6 and the left rear guide rail 47 is equal to the diameter of the flange bearing 8, and the distance between the right front guide rail 48 and the right rear guide rail 49 is equal to the diameter of the flange bearing 8; the left-right distance between the four guide rails is equal to the distance between the flanges of the left and right flange bearings 8, namely the left-right distance between the left front guide rail 6 and the right front guide rail 48 is equal to the distance between the inner edges of the flange flanges of the left and right flange bearings 8, and the left-right distance between the left rear guide rail 47 and the right rear guide rail 49 is equal to the distance between the inner edges of the flange flanges of the left and right flange bearings 8, so as to ensure that the sliding seat cannot incline left and right or fall out of the guide rails.

As shown in fig. 5-6, a counterweight support plate rotating bracket 11 and a movable pulley fixing seat 9 are also arranged on the channel steel-shaped seat body 7. The movable pulley fixing seat 9 is fixed at the central position of the upper end of the inner side of the channel steel-shaped seat body 7, the movable pulley 26 is installed inside the movable pulley fixing seat 9, and the sliding seat steel cable hanging ring 10 is fixedly arranged on the movable pulley fixing seat 9; a counterweight supporting plate cross brace 12 is fixed on the counterweight supporting plate rotating bracket 11, and a counterweight supporting plate 13 is fixed on the counterweight supporting plate cross brace 12. Four flange bearings 8 are fixed on two shafts which cross and are fixed on the channel steel-shaped base body 7.

As shown in fig. 5-6, the front surface of the weight support plate 13 is a pedal, the back surface is a seat plate, and is fixed on the weight support plate cross-brace 12, and the weight support plate cross-brace 12 is fixed at a position near the lower end of the weight support plate rotating bracket 11, so that when the weight support plate rotating bracket 11 rotates, the height of the weight support plate 13 from the base platform 3 changes.

As shown in fig. 5, 3 nuts are welded on the outer side of the bottom surface of the channel-section steel-shaped base body 7, and the center distance between the middle slide base connecting nut 42 and the upper end pin base 41 of the slide base at the upper end is equal to the center distance between the lower end pin base 43 of the slide base at the lower end. The counterweight support plate rotating support 11 is a U-shaped long groove with rubber pads at two ends, two through holes are arranged on the bottom surface of the U-shaped long groove of the counterweight support plate rotating support 11, two nuts concentric with the through holes are arranged on the outer sides of the through holes, the rotating support is connected with the nuts and the reset spring pull rod fixing nuts, and the hole center distance of the two through holes is equal to the hole center distance between each nut on the channel steel-shaped seat body 7; the weight support plate rotating bracket 11 is fixed on a sliding seat connecting nut 42 in the middle of the channel steel-shaped seat body 7 by a bolt 44 passing through a hole at the lower end and the rotating bracket connecting nut, and can rotate by taking the bolt 44 as an axis. The reset spring pull rod 40 is a pull rod which passes through a screw rod by a pin shaft and can be reset by a spring, the screw rod of the reset spring pull rod 40 passes through a hole at the upper end of the counterweight support plate rotating bracket 11 and is fixed on a reset spring pull rod fixing nut, and meanwhile, the pin shaft of the reset spring pull rod 40 is inserted into a pin seat 41 at the upper end of a sliding seat at the upper end of the channel steel-shaped seat body 7, and a pedal plate of the counterweight support plate 13 is upward; when the pin shaft of the return spring pull rod 40 is pulled out, the counterweight support plate rotating support 11 is rotated by 180 degrees, as shown in fig. 6, the pin shaft of the return spring pull rod 40 is inserted into the pin seat 43 at the lower end of the sliding seat at the lower end of the channel steel-shaped seat body 7, and at the moment, the seat plate of the counterweight support plate 13 is upward.

As shown in fig. 2 and 8, a cantilever fixing seat 15 is fixedly arranged on the top of the left rear guide rail 47 and the right rear guide rail 49, and the left cantilever 16 and the right cantilever 17 are connected and fixed by the left and right cantilever connecting pieces 23 to form an included angle of 70 degrees, hinged on the cantilever fixing seat 15, and can pivot by taking a shaft as a center. The boom height adjustment cross shaft 22 is fixed between the left and right booms. The included angle of the two cantilevers is to ensure that the distance between the tail ends of the two cantilevers is larger than or equal to the shoulder width of a common user.

As shown in fig. 2 and 8, a height adjusting member fixing seat 24 is fixedly provided on the top of the left front rail 6 and the right front rail 48, and the height adjusting member 25 is a U-shaped member having three guide slots, is hinged to the height adjusting member fixing seat 24 by a shaft, and can pivot about the shaft. The cantilever height adjustment cross shaft 22 can be clamped into different guide clamping grooves of the height adjustment member fixing seat 25 to adjust the uplifting angle of the cantilever, namely, the use height is adjusted.

As shown in fig. 1-2, a left guide pulley fixing seat 18 and a right guide pulley fixing seat 19 are respectively fixed at two sides of the left and right cantilevers and are vertically positioned at the center of the column, and a left fixed pulley fixing seat 20 and a right fixed pulley fixing seat 21 are fixed at the tail ends of the left and right cantilevers. The left guide pulley 27, the right guide pulley 28, the left fixed pulley 29 and the right fixed pulley 30 are correspondingly fixed on the left guide pulley fixing seat 18, the right guide pulley fixing seat 19, the left fixed pulley fixing seat 20 and the right fixed pulley fixing seat 21.

In addition, the cantilever can be replaced by two arm pipes to form a central arm pipe, and meanwhile, two groups of pulleys and steel cables on the left side and the right side of the cantilever are replaced by one group.

The usual weight state, 1/3, is that the weight is the user's own weight. As shown in fig. 1-2, the fixed gravity adjusting pulley 31 is fixed between the front left guide rail 6 and the front right guide rail 48 at a distance from the top end of the guide rail equal to the height of the guide rail minus half of the height of the sliding seat, and the fixed gravity adjusting pulley 32 is fixed on the fixed gravity adjusting pulley 31. One end of a movable pulley connecting steel cable 33 passes through the space between the gravity adjusting fixed pulley fixing seat 31 and the gravity adjusting fixed pulley 32 and is fixed on the upper end steel cable hanging ring 14, and the other end of the movable pulley connecting steel cable passes around the movable pulley 26 and is connected with a steel cable connecting hook 34; the left fixed pulley connecting steel cable 35 and the right fixed pulley connecting steel cable 36 are respectively wound around the left guide pulley 27, the right guide pulley 28, the left fixed pulley 29 and the right fixed pulley 30 and are connected with a steel cable connecting hook 34; the left handle 37 and the right handle 38 are connected to the ends of the left fixed pulley connecting cable 35 and the right fixed pulley connecting cable 36, respectively.

As shown in fig. 9, when the user stands or sits on the weight plate 13, the left and right grips are pulled by both hands, and the user's body weight is G, G =3F, F =1/3G, i.e., the user's pulling force is 1/3 of his body weight.

When the user needs to adjust the weight to 1/2 from 1/3 of the user's own weight, the movable pulley connecting cable 33 is disconnected from the cable connecting hook 34, and the cable connecting hook 34 is directly hung on the sliding seat cable hanging ring 10.

Namely, the left fixed pulley connecting steel cable 35 and the right fixed pulley connecting steel cable 36 respectively pass around the left guide pulley 27, the right guide pulley 28, the left fixed pulley 29 and the right fixed pulley 30 to be connected with the steel cable connecting hook 34, and the steel cable connecting hook 34 is connected with the sliding seat steel cable hanging ring 10.

As shown in fig. 10, when the user stands or sits on the weight plate 13, the left and right grips are pulled by both hands, and the user's body weight is G, G =2F, F =1/2G, i.e., the user's pulling force is 1/2 of his body weight.

When the user needs to adjust the weight from 1/3 of the user's own weight to 1/4, one end of the movable pulley connecting cable 33 is disconnected from the upper end cable hanging ring 14 and is fixed on the sliding seat cable hanging ring 10 by passing through the weight adjusting fixed pulley 32.

Namely, one end of the movable pulley connecting steel cable 33 is fixed on the sliding seat steel cable hanging ring 10 by bypassing the gravity adjusting fixed pulley 32, and the other end is connected with the steel cable connecting hook 34 by bypassing the movable pulley 26; the left fixed pulley connecting steel cable 35 and the right fixed pulley connecting steel cable 36 are respectively wound around the left guide pulley 27, the right guide pulley 28, the left fixed pulley 29 and the right fixed pulley 30 to be connected with a steel cable connecting hook 34.

As shown in fig. 11, when the user stands or sits on the weight plate 13, the left and right grips are pulled by both hands, and the user's body weight is G, G =4F, F =1/4G, i.e., the user's pulling force is 1/4 of his body weight.

Can install balancing weight or counter weight thing on counter weight layer board 13, through the mode that additionally increases the counter weight, realize more accurate counter weight demand.

Claims

1. The utility model provides a multi-functional tensile strength training ware, it includes the stand and sets up the sliding seat that slides from top to bottom along the stand axial on the stand to and set up the assembly pulley on stand and sliding seat, wrap up the rope one end fixedly connected with handle of assembly pulley, the rope is fixed on the stand through the pulley back other end on the sliding seat, characterized by fixes being provided with the counter weight layer board on the sliding seat, the counter weight layer board is located the homonymy of stand with the handle, the handle drives the sliding seat through the rope and reciprocates.

2. The multifunctional tensile force exerciser according to claim 1, wherein a cantilever is provided at the top of the vertical column.

3. The multifunctional tension trainer according to claim 1, further comprising a base frame, a base platform, and a base upright connecting plate fixed to the base frame, wherein the upright is fixed to the base.

4. The multifunctional tension trainer according to claim 1 or 3, wherein the upright comprises four guide rails distributed at four corners of a rectangle, and the guide rails are square tubes; the four guide rails are provided with guide rail reinforcing frames wrapped on the outer edges of the guide rails, and the lower ends of the four guide rails are fixed on the stand column fixing seats.

5. The multifunctional tension trainer according to claim 4, wherein the upright fixing seat is fixedly connected with the base upright connecting plate fixed on the bottom surface of the base platform by a screw passing through the upright fixing seat and the base platform.

6. The multifunctional tension trainer according to claim 4, wherein the sliding seat comprises a channel steel-shaped seat body, and four flange bearings and a movable pulley are fixedly arranged on two side faces of the channel steel-shaped seat body; the four guide rails are guide rails of the sliding seat and comprise a left front guide rail, a left rear guide rail, a right front guide rail and a right rear guide rail, wherein the distance between the left front guide rail and the left rear guide rail is equal to the diameter of the flange bearing, and the distance between the right front guide rail and the right rear guide rail 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 flange bearings at the left and right sides so as to ensure that the sliding seat cannot incline left and right or fall out of the guide rails.

7. The multifunctional tension trainer according to claim 6, wherein the channel-shaped seat body is further provided with a counterweight supporting plate rotating bracket and a movable pulley fixing seat; a counterweight supporting plate cross brace is fixed on the counterweight supporting plate rotating support, and a counterweight supporting plate is fixed on the counterweight supporting plate cross brace; a sliding seat steel cable hanging ring is fixedly arranged on the movable pulley fixing seat.

8. The multifunctional tension trainer according to claim 6, wherein four flange bearings are fixed on two shafts crossing and fixed on the channel-shaped seat body, the movable pulley fixing seat is fixed at the central position of the inner upper end of the channel-shaped seat body, and the movable pulley is installed inside the movable pulley fixing seat.

9. The multifunctional tension trainer according to claim 6, wherein 3 nuts are welded on the outside of the bottom surface of the channel-section-shaped seat body, and the center distance between the middle sliding seat connecting nut and the upper end pin seat of the upper sliding seat and the center distance between the middle sliding seat connecting nut and the lower end pin seat of the lower sliding seat are equal; the counterweight support plate rotating support is a U-shaped long groove with rubber pads at two ends, two through holes are arranged on the bottom surface of the U-shaped long groove of the counterweight support plate rotating support, two nuts concentric with the through holes are arranged on the outer sides of the through holes, the rotating support is connected with the nuts and the reset spring pull rod fixing nuts, and the hole center distance of the two through holes is equal to the hole center distance between each nut on the channel steel-shaped seat body; the counterweight support plate rotating bracket is fixed on a sliding seat connecting nut in the middle of the channel steel-shaped seat body (7) by a bolt penetrating through a hole at the lower end and a rotating bracket connecting nut and can rotate by taking the bolt as a shaft; the reset spring pull rod is a pull rod which passes through a screw rod by a pin shaft and can be reset by a spring, the screw rod of the reset spring pull rod passes through a hole at the upper end of the counterweight support plate rotating bracket and is fixed on a reset spring pull rod fixing nut, and the pin shaft of the reset spring pull rod is inserted into a pin seat at the upper end of a sliding seat at the upper end of the channel steel-shaped seat body; at the moment, the pedal of the balance weight supporting plate faces upwards; when the pin shaft of the reset spring pull rod is pulled out, the rotating support of the balance weight support plate rotates 180 degrees, the pin shaft of the reset spring pull rod is inserted into the pin seat at the lower end of the sliding seat at the lower end of the channel steel-shaped seat body, and the seat plate of the balance weight support plate is upward.

10. The multifunctional tension trainer according to claim 1, wherein a height adjusting member fixing seat and a cantilever fixing seat are fixedly arranged at the top of the upright column, one end of the cantilever is hinged on the cantilever fixing seat, and a cantilever height adjusting transverse shaft is arranged on the cantilever; the height adjusting part is a U-shaped part with three guide clamping grooves, is hinged on the height adjusting part fixing seat through a shaft and can pivot by taking the shaft as the center; the lifting angle of the cantilever can be adjusted by clamping the cantilever height adjusting cross shaft into different guide clamping grooves of the height adjusting part fixing seat, namely the use height is adjusted.