CN108969972B - A device for exercising leg muscles - Google Patents

Abstract

The invention relates to a sports appliance, in particular to a leg muscle exercising device which comprises a workbench, a pedal assembly, a counterweight assembly, a sliding piece and a pull rope. Pedal subassembly and workstation sliding connection, counter weight subassembly and workstation fixed connection, slider sliding connection is on the counter weight subassembly, the one end fixed connection of stay cord is on the pedal subassembly, the other end fixed connection of stay cord is on the slider, stride across workstation and counter weight subassembly respectively in the middle of the stay cord.

Description

A device for exercising leg muscles

technical field

The present invention relates to a kind of sports equipment, more particularly to a leg muscle exercise device.

Background technique

A leg muscle exercise device with application number CN201611091508.2, the invention discloses a leg muscle exercise device, which includes a base, and a swing seat and a pedal mechanism are arranged on the upper part of the base, and the swing seat and the pedal mechanism are relatively arranged The swing seat includes a bracket and a seat surface arranged on the upper part of the bracket, the bracket includes a pair of first ear plates and a pair of second ear plates arranged on the upper part of the base, the upper part of the first ear plate is hinged with long legs, and the second ear plate The upper part is hinged with short legs, and the lower four corners of the seat surface are provided with connecting lugs, two of the four connecting lugs are hinged with the long legs through the hinge shafts of the long legs, and the other two are hinged with the short legs through the hinge shafts of the short legs. Both ends of the leg hinge shaft are also connected with a long-leg telescopic mechanism. The invention can perform recovery training when the user is in a sitting state, and can also perform arm stretching exercise while exercising the legs. The side of the swing seat is provided with a buffer, which can be in contact with the mounting plate for buffering. To avoid user injury due to improper operation. However, the invention cannot adjust the magnitude of the pulling force, and is not suitable for use by various groups of people.

SUMMARY OF THE INVENTION

The present invention provides a leg muscle exercise device, which has the beneficial effects that the present invention can perform both leg muscle training and single leg training alone, and at the same time, the kicking force of the present invention can be adjusted to adapt to different degrees of training.

The present invention relates to a kind of sports equipment, more particularly a kind of leg muscle exercise device, comprising a workbench, a pedal assembly, a counterweight assembly, a sliding member and a pull rope. The single leg can be trained independently, and the kicking strength of the present invention can be adjusted to adapt to different degrees of training.

The pedal assembly is slidably connected to the workbench, the counterweight assembly is fixedly connected to the workbench, the slider is slidably connected to the counterweight assembly, one end of the pull rope is fixedly connected to the pedal assembly, and the other end of the pull rope is fixedly connected On the slide, the middle of the pull rope spans the table and the counterweight assembly respectively.

The described workbench includes a work plate, a chute, a cross rail rod, a convex seat, a convex strip, a backrest plate, a pinch plate, a screw seat, a screw rod, an outrigger, a pulley I and a pulley frame I, and the right end of the work plate is provided with a convex The protruding bar is provided with a chute, the lower end of the chute protrudes from the working plate, the left and right ends of the upper end of the protruding bar are fixedly connected with a convex seat, and two cross rail rods are fixedly connected between the two convex seats. The chute is located between the two transverse rail bars, the lower end of the working plate is fixedly connected with a pulley frame I, the lower end of the pulley frame I is rotatably connected with a pulley I, and the front and rear ends of the left end of the lower end face of the working plate are fixedly connected with outriggers, The front and rear ends of the lower end of the backrest plate are fixedly connected with gusset plates, the two gusset plates are respectively slidably connected to the edges of the front and rear ends of the left end of the work plate, the left end of the work plate is fixedly connected with a screw seat, and the screw seat is connected with a screw through a thread. The right end of the screw is against the left end of the backrest board.

The pedal assembly includes a fixed block, a post, a limit plate, a vertical post, a horizontal sliding rod, an L-shaped plate, a pad, a pedal board, a horizontal rail rod slot, a thick post and a socket, the post, the horizontal Two sliding rods, L-shaped plates, spacers, pedal boards, transverse rail rod grooves, thick columns and sockets are arranged symmetrically in the front and rear, and the inner ends of the two transverse sliding rods are provided with transverse rail rod grooves. The horizontal sliding bars are respectively slidably connected to the two horizontal rail bars through the horizontal rail bar grooves, the upper ends of the inner ends of the two horizontal sliding bars are fixedly connected with thick columns, the two thick columns are provided with sockets, and the two L-shaped The upper ends of the plates are respectively fixedly connected to the outer ends of the two horizontal sliding bars, the two pedal boards are respectively hinged on the vertical plate bodies of the two L-shaped plates, and the lower ends of the two pedal boards are fixedly connected with pads. The two spacers are respectively placed on the vertical plate bodies of the two L-shaped plates, and two posts are inserted symmetrically in the front and rear on the fixed block. The fixed block is placed on the upper end of the two thick posts, and the lower ends of the two posts are respectively The right end of the fixed block is fixedly connected with a vertical column, the lower end of the vertical column is slidably connected with the chute, the upper and lower ends of the vertical column are fixedly connected to the limit plate, and the limit plate at the upper end is connected with the two The upper end face of the horizontal rail rod is fitted, and the limit plate at the lower end is fitted with the lower end face of the working plate.

The counterweight assembly includes a bottom plate, a pillar, a pulley II, a pulley frame II, a vertical slot rod, a vertical groove, a pulley frame III, a pulley III, a vertical guide plate, a weight, a convex socket and a fastening screw. Both ends are fixedly connected with pillars, the two pillars are fixedly connected to the lower end of the right end of the working plate, the upper end of the bottom plate is fixedly connected with a vertical slot rod, the vertical slot rod is provided with a vertical slot, and the upper end of the vertical slot rod is fixedly connected with a pulley Frame III, the upper end of the pulley frame III is rotatably connected with the pulley III, the left end of the lower end of the vertical slot rod is fixedly connected with the pulley frame II, the left end of the pulley frame II is rotatably connected with the pulley II, and the right end of the bottom plate is symmetrically connected with two vertical A guide plate, a plurality of weight blocks are inserted on the two vertical guide plates, the outer sides of the plurality of weight blocks are fixedly connected with convex sockets, and the plurality of convex sockets are all connected with fastening screws through threads.

The sliding member includes an inner slide plate, a side block, an upper plate, an L-shaped rod and a circular insert rod. The front and rear ends of the inner slide plate are fixedly connected with side blocks, and the inner slide plate is slidably connected in the vertical slot. Fitted with the front and rear surfaces of the vertical slot rods respectively, the upper plate is fixedly connected between the upper ends of the two side blocks, the outer sides of the two side blocks are fixedly connected with an L-shaped rod, and the right end of the L-shaped rod is fixedly connected with a circular plug. The two circular insertion rods are respectively inserted into the plurality of convex sockets at the front end and the plurality of convex sockets at the rear end, and the plurality of fastening screws are pressed against the corresponding circular insertion rods.

The left end of the pull rope is fixedly connected to the lower end of the vertical column, the pull rope is passed around the outrigger, pulley II and pulley III in turn, and the right end of the pull rope is fixedly connected to the upper end of the upper plate.

The beneficial effects of a leg muscle exercise device of the present invention are:

The present invention is a leg muscle training device. The present invention can perform both leg muscle training and single leg training alone. Meanwhile, the kicking force of the present invention can be adjusted to adapt to different degrees of training.

Description of drawings

The present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

Fig. 1 is the overall structure schematic diagram one of a kind of leg muscle exercise device of the present invention;

Fig. 2 is the overall structure schematic diagram 2 of a kind of leg muscle exercise device of the present invention;

Fig. 3 is the connection schematic diagram of the pull rope;

Fig. 4 is the structural schematic diagram 1 of the workbench;

Fig. 5 is the structural schematic diagram two of the workbench;

FIG. 6 is a schematic structural diagram 1 of the pedal assembly;

Fig. 7 is the second structural schematic diagram of the pedal assembly;

8 is a schematic diagram of a partial structure of the pedal assembly;

Fig. 9 is the structural representation of the counterweight assembly;

Fig. 10 is the first structural schematic diagram of the slider;

FIG. 11 is a second structural schematic diagram of the sliding member.

In the figure: workbench 1; work board 1-1; chute 1-2; rail rod 1-3; convex seat 1-4; convex strip 1-5; Screw base 1-8; screw 1-9; outrigger 1-10; pulley I1-11; pulley frame I1-12; pedal assembly 2; fixing block 2-1; post 2-2; limit plate 2- 3; vertical column 2-4; horizontal slide bar 2-5; L-shaped plate 2-6; pad 2-7; foot pedal plate 2-8; horizontal rail bar groove 2-9; thick column 2-10; Hole 2-11; Counterweight Assembly 3; Bottom Plate 3-1; Pillar 3-2; Pulley II3-3; Pulley Frame II3-4; Vertical Slot Rod 3-5; Vertical Slot 3-6; Pulley Frame III3-7; Pulley III3-8; vertical guide plate 3-9; weight 3-10; male socket 3-11; fastening screw 3-12; sliding piece 4; inner slide plate 4-1; side block 4-2; upper plate 4- 3; L-shaped rod 4-4; circular insertion rod 4-5; pull rope 5.

Detailed ways

Specific implementation one:

The present embodiment will be described below with reference to FIGS. 1-11 . The present invention relates to a sports appliance, more specifically, a leg muscle exercise device, comprising a workbench 1 , a pedal assembly 2 , a counterweight assembly 3 , and a sliding member 4 And the pull rope 5, the present invention can perform both leg muscle training and single leg training alone, and at the same time, the kicking strength of the present invention can be adjusted to adapt to different degrees of training.

The pedal assembly 2 is slidably connected to the workbench 1 , the counterweight assembly 3 is fixedly connected to the workbench 1 , the slider 4 is slidably connected to the counterweight assembly 3 , and one end of the pull rope 5 is fixedly connected to the pedal assembly 2 , the other end of the pull rope 5 is fixedly connected to the sliding member 4, and the middle of the pull rope 5 spans the workbench 1 and the counterweight assembly 3 respectively.

The workbench 1 includes a work plate 1-1, a chute 1-2, a horizontal rail rod 1-3, a convex seat 1-4, a convex strip 1-5, a backboard 1-6, a pinch plate 1-7, Screw base 1-8, screw 1-9, outrigger 1-10, pulley I1-11 and pulley frame I1-12, the right end of the working plate 1-1 is provided with a protruding strip 1-5, and the protruding strip 1-5 is provided with There is a chute 1-2, the lower end of the chute 1-2 protrudes from the working plate 1-1, the left and right ends of the upper end of the convex strip 1-5 are fixedly connected with a convex seat 1-4, the two convex seats 1- 4 are fixedly connected with two cross rail bars 1-3, the chute 1-2 is located between the two cross rail bars 1-3, the lower end of the working plate 1-1 is fixedly connected with a pulley frame I1-12, the pulley frame The lower end of I1-12 is rotatably connected with the pulley I1-11, the front and rear ends of the left end of the lower end surface of the working board 1-1 are fixedly connected with the legs 1-10, and the front and rear ends of the lower end of the backboard 1-6 are fixedly connected with The gusset plate 1-7, the two gusset plates 1-7 are respectively slidably connected to the edges of the front and rear ends of the left end of the work plate 1-1, and the left end of the work plate 1-1 is fixedly connected with a screw seat 1-8, and the screw seat 1-8 A screw 1-9 is connected with the screw, and the right end of the screw 1-9 is pressed against the left end of the backboard 1-6. The backboard 1-6 can slide on the left end of the work board 1-1 through the two gussets 1-7. The user needs to back against the right end of the backboard 1-6 and adjust the position of the backboard 1-6 to suit different body shapes. For human use, turn the screw 1-9 to the right to push the backrest board 1-6 to move to the right.

The pedal assembly 2 includes a fixed block 2-1, a post 2-2, a limit plate 2-3, a vertical column 2-4, a horizontal slide bar 2-5, an L-shaped plate 2-6, and a pad 2 -7, pedal board 2-8, horizontal rail rod groove 2-9, thick column 2-10 and socket 2-11, plug 2-2, horizontal sliding rod 2-5, L-shaped plate 2-6, There are two cushion blocks 2-7, pedal boards 2-8, transverse rail rod grooves 2-9, thick columns 2-10 and sockets 2-11 symmetrically arranged in front and rear. Both ends are provided with cross rail rod grooves 2-9, two cross rail rods 2-5 are slidably connected to the two cross rail rods 1-3 through the cross rail rod grooves 2-9, and the two cross rail rods 2-5 The upper ends of the inner ends are fixedly connected with thick columns 2-10, the two thick columns 2-10 are provided with sockets 2-11, and the upper ends of the two L-shaped plates 2-6 are fixedly connected to the two horizontal slide bars respectively. At the outer end of 2-5, the two pedal boards 2-8 are hinged on the vertical plate bodies on the two L-shaped boards 2-6 respectively, and the lower ends of the two pedal boards 2-8 are fixedly connected with a cushion block 2 -7, the two spacers 2-7 are placed on the vertical plate bodies of the two L-shaped plates 2-6 respectively, and the fixed block 2-1 is symmetrically inserted with two posts 2-2 front and rear, and the fixed block 2 -1 is placed on the upper ends of the two thick columns 2-10, the lower ends of the two inserting columns 2-2 are inserted into the two sockets 2-11 respectively, and the right end of the fixing block 2-1 is fixedly connected with the vertical column 2- 4. The lower end of the vertical column 2-4 is slidably connected with the chute 1-2, the upper and lower ends of the vertical column 2-4 are fixedly connected to the limit plate 2-3, and the limit plate 2-3 at the upper end is connected to the two horizontal rails. The upper end surface of the rod 1-3 is attached, and the limit plate 2-3 at the lower end is attached to the lower end surface of the working plate 1-1. The vertical column 2-4 can slide left and right in the chute 1-2. The function of the two limit plates 2-3 is to prevent the vertical column 2-4 from moving up and down. The two insertion columns 2-2 can be removed. When there is only one When the upper end of the thick column 2-10 is inserted with the plunger 2-2, the plunger 2-2 is connected with the fixing block 2-1. At this time, only when the thick column 2-10 with the plunger 2-2 is inserted can move. Drive the fixed block 2-1 to move. When two thick posts 2-10 are inserted with posts 2-2, both posts 2-2 are connected with the fixed block 2-1. At this time, the two posts 2 When -2 moves, the fixed block 2-1 can be moved to adjust the single-leg training or double-leg training mode. When training the leg muscles, the foot needs to step on the pedal board 2-8, and then push the pedal board 2-8 to the right. The pedal board 2-8 can be rotated to adapt to the change of the angle of the foot. The pedal 2-8 can drive the horizontal sliding bar 2-5 to slide on the horizontal rail bar 1-3, and then drive the thick column 2-10 to move.

The counterweight assembly 3 includes a bottom plate 3-1, a pillar 3-2, a pulley II3-3, a pulley frame II3-4, a vertical groove rod 3-5, a vertical groove 3-6, a pulley frame III3-7, and a pulley III3 -8. Vertical guide plate 3-9, heavy block 3-10, male socket 3-11 and fastening screw 3-12, the front and rear ends of the left end of the bottom plate 3-1 are fixedly connected with pillar 3-2, two pillars 3-2 are fixedly connected to the lower end of the right end of the work board 1-1, the upper end of the bottom plate 3-1 is fixedly connected with a vertical slot rod 3-5, the vertical slot rod 3-5 is provided with a vertical slot 3-6, the vertical slot The upper end of the rod 3-5 is fixedly connected with the pulley frame III3-7, the upper end of the pulley frame III3-7 is rotatably connected with the pulley III3-8, and the left end of the lower end of the vertical groove rod 3-5 is fixedly connected with the pulley frame II3-4. The left end of the frame II3-4 is rotatably connected with a pulley II3-3, and the right end of the bottom plate 3-1 is fixedly connected with two vertical guide plates 3-9 symmetrically and fixedly, and a plurality of weights 3 are inserted on the two vertical guide plates 3-9. -10, the outer sides of the plurality of weights 3-10 are fixedly connected with male sockets 3-11, and the plurality of male sockets 3-11 are screwed with fastening screws 3-12.

The sliding member 4 includes an inner slide plate 4-1, a side block 4-2, an upper plate 4-3, an L-shaped rod 4-4 and a circular insertion rod 4-5. The front and rear ends of the inner slide plate 4-1 are A side block 4-2 is fixedly connected, the inner slide plate 4-1 is slidably connected in the vertical groove 3-6, the two side blocks 4-2 are respectively fitted with the front and rear surfaces of the vertical groove rod 3-5, and the two side blocks 4 An upper plate 4-3 is fixedly connected between the upper ends of -2, an L-shaped rod 4-4 is fixedly connected to the outer sides of the two side blocks 4-2, and a circular insertion rod is fixedly connected to the right end of the L-shaped rod 4-4 4-5, the two circular insertion rods 4-5 are respectively inserted into the plurality of male sockets 3-11 at the front end and the plurality of male sockets 3-11 at the rear end, and the plurality of fastening screws 3-12 are pressed against the corresponding sockets 3-11. Circular plunger 4-5. The inner slide 4-1 can slide in the vertical slot 3-6, and when the inner slide 4-1 slides up on the vertical slot 3-6, it drives the two L-shaped rods 4-4 and the two circular insertion rods 4-5 upward. Sliding, since the two circular insertion rods 4-5 are inserted into the plurality of male sockets 3-11, how many weights 3-10 are fixed on the circular sockets by tightening the fastening screws 3-12 as much weight as needed. On the rod 4-5, when the circular insertion rod 4-5 rises, the weight 3-10 fixed on it can be lifted.

The left end of the pulling rope 5 is fixedly connected to the lower end of the vertical column 2-4. The upper end of the upper plate 4-3. When the vertical column 2-4 moves to the right, the upper plate 4-3 is pulled up by the pulling rope 5, and the upper plate 4-3 drives the inner slide plate 4-1, the side block 4-2, the L-shaped rod 4-4 and the circular insertion rod. When 4-5 rises, the weight 3-10 fixed on it can be lifted when the circular plunger 4-5 rises.

The working principle of the present invention: the backrest board 1-6 can slide on the left end of the work board 1-1 through the two gussets 1-7, the user needs to back against the right end of the backrest board 1-6, adjust the backrest board 1-6 The position is suitable for people of different statures. Rotating the screw 1-9 to the right can push the backboard 1-6 to move to the right. The vertical column 2-4 can slide left and right in the chute 1-2. The function of the two limit plates 2-3 is to prevent the vertical column 2-4 from moving up and down. The two insertion columns 2-2 can be removed. When there is only one When the upper end of the thick column 2-10 is inserted with the plunger 2-2, the plunger 2-2 is connected with the fixing block 2-1. At this time, only when the thick column 2-10 with the plunger 2-2 is inserted can move. Drive the fixed block 2-1 to move. When two thick posts 2-10 are inserted with posts 2-2, both posts 2-2 are connected with the fixed block 2-1. At this time, the two posts 2 When -2 moves, the fixed block 2-1 can be moved to adjust the single-leg training or double-leg training mode. When training the leg muscles, the foot needs to step on the pedal board 2-8, and then push the pedal board 2-8 to the right. The pedal board 2-8 can be rotated to adapt to the change of the angle of the foot. The pedal 2-8 can drive the horizontal sliding bar 2-5 to slide on the horizontal rail bar 1-3, and then drive the thick column 2-10 to move. The inner slide 4-1 can slide in the vertical slot 3-6, and when the inner slide 4-1 slides up on the vertical slot 3-6, it drives the two L-shaped rods 4-4 and the two circular insertion rods 4-5 upward. Sliding, since the two circular insertion rods 4-5 are inserted into the plurality of male sockets 3-11, how many weights 3-10 are fixed on the circular sockets by tightening the fastening screws 3-12 as much weight as needed. On the rod 4-5, when the circular insertion rod 4-5 rises, the weight 3-10 fixed on it can be lifted. When the vertical column 2-4 moves to the right, the upper plate 4-3 is pulled up by the pulling rope 5, and the upper plate 4-3 drives the inner slide plate 4-1, the side block 4-2, the L-shaped rod 4-4 and the circular insertion rod. When 4-5 rises, the weight 3-10 fixed on it can be lifted when the circular plunger 4-5 rises.

Of course, the above description does not limit the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the essential scope of the present invention also belong to the present invention. protected range.

Claims (2)

1. The utility model provides a device is tempered to shank muscle, includes workstation (1), pedal subassembly (2), counter weight subassembly (3), slider (4) and stay cord (5), its characterized in that: the pedal assembly (2) is connected with the workbench (1) in a sliding mode, the counterweight assembly (3) is fixedly connected with the workbench (1), the sliding part (4) is connected to the counterweight assembly (3) in a sliding mode, one end of the pull rope (5) is fixedly connected to the pedal assembly (2), the other end of the pull rope (5) is fixedly connected to the sliding part (4), and the middle of the pull rope (5) spans the workbench (1) and the counterweight assembly (3) respectively;

the working table (1) comprises a working plate (1-1), sliding grooves (1-2), transverse rail rods (1-3), convex seats (1-4), convex strips (1-5), backrest plates (1-6), buckle plates (1-7), screw rod seats (1-8), screws (1-9), supporting legs (1-10), pulleys I (1-11) and pulley frames I (1-12), wherein the right end of the working plate (1-1) is provided with the convex strips (1-5), the sliding grooves (1-2) are arranged on the convex strips (1-5), the lower ends of the sliding grooves (1-2) penetrate out of the working plate (1-1), the left end and the right end of the upper end of the convex strips (1-5) are fixedly connected with the convex seats (1-4), and the two transverse rail rods (1-3) are fixedly connected between the two convex seats (1-4), the sliding chute (1-2) is positioned between the two cross rail rods (1-3), the lower end of the working plate (1-1) is fixedly connected with a pulley frame I (1-12), the lower end of the pulley frame I (1-12) is rotatably connected with a pulley I (1-11), the front end and the rear end of the left end of the lower end surface of the working plate (1-1) are fixedly connected with supporting legs (1-10), the front end and the rear end of the lower end of the back plate (1-6) are fixedly connected with buckle plates (1-7), the two buckle plates (1-7) are respectively and slidably connected with the edges of the front end and the rear end of the left end of the working plate (1-1), the left end of the working plate (1-1) is fixedly connected with a screw rod seat (1-8), the screw rod (1-9) is connected onto the screw rod seat (1-8) through threads, and the right end of the screw;

the pedal assembly (2) comprises a fixed block (2-1), insert posts (2-2), limiting plates (2-3), vertical posts (2-4), transverse sliding rods (2-5), L-shaped plates (2-6), cushion blocks (2-7), pedal plates (2-8), transverse rail rod grooves (2-9), thick posts (2-10) and jacks (2-11), the insert posts (2-2), the transverse sliding rods (2-5), the L-shaped plates (2-6), the cushion blocks (2-7), the pedal plates (2-8), the transverse rail rod grooves (2-9), the thick posts (2-10) and the jacks (2-11) are symmetrically arranged in front and back, the transverse rail rod grooves (2-9) are arranged at the inner ends of the two transverse sliding rods (2-5), and the two transverse sliding rods (2-5) are respectively connected with the two transverse rail rod grooves (2-9) in a sliding mode On the transverse rail rod (1-3), the upper ends of the inner ends of two transverse sliding rods (2-5) are fixedly connected with thick columns (2-10), the two thick columns (2-10) are respectively provided with an insertion hole (2-11), the upper ends of two L-shaped plates (2-6) are respectively fixedly connected with the outer ends of the two transverse sliding rods (2-5), two pedal plates (2-8) are respectively hinged on vertical plate bodies on the two L-shaped plates (2-6), the lower ends of the two pedal plates (2-8) are respectively fixedly connected with cushion blocks (2-7), the two cushion blocks (2-7) are respectively propped against vertical plate bodies on the two L-shaped plates (2-6), the fixed block (2-1) is symmetrically inserted with two inserting columns (2-2) in the front and back direction, the fixed block (2-1) is placed at the upper ends of the two thick columns (2-10), the lower ends of the two inserting columns (2-2) are respectively inserted into the two inserting holes (2-11), the right end of the fixed block (2-1) is fixedly connected with a vertical column (2-4), the lower ends of the vertical columns (2-4) are in sliding connection with the sliding groove (1-2), the upper end and the lower end of each vertical column (2-4) are fixedly connected with a limiting plate (2-3), the limiting plate (2-3) at the upper end is attached to the upper end faces of the two cross rail rods (1-3), and the limiting plate (2-3) at the lower end is attached to the lower end face of the working plate (1-1);

the counterweight component (3) comprises a bottom plate (3-1), support columns (3-2), pulleys II (3-3), pulley frames II (3-4), vertical groove rods (3-5), vertical grooves (3-6), pulley frames III (3-7), pulleys III (3-8), vertical guide plates (3-9), heavy blocks (3-10), convex sockets (3-11) and fastening screws (3-12), wherein the front end and the rear end of the left end of the bottom plate (3-1) are fixedly connected with the support columns (3-2), the two support columns (3-2) are fixedly connected with the lower end of the right end of the working plate (1-1), the upper end of the bottom plate (3-1) is fixedly connected with the vertical groove rods (3-5), the vertical grooves (3-6) are formed in the vertical groove rods (3-5), the upper end of each vertical groove rod (3-5) is fixedly connected with a pulley yoke III (3-7), the upper end of each pulley yoke III (3-7) is rotatably connected with a pulley III (3-8), the left end of the lower end of each vertical groove rod (3-5) is fixedly connected with a pulley yoke II (3-4), the left end of each pulley yoke II (3-4) is rotatably connected with a pulley II (3-3), the right end of the bottom plate (3-1) is symmetrically and fixedly connected with two vertical guide plates (3-9) in a front-back mode, a plurality of weight blocks (3-10) are respectively inserted into the two vertical guide plates (3-9), the outer sides of the weight blocks (3-10) are respectively and fixedly connected with a convex socket (3-11), and the convex sockets (3-11) are respectively connected with a fastening screw (3-12) through;

the sliding part (4) comprises an inner sliding plate (4-1), side blocks (4-2), an upper plate (4-3), an L-shaped rod (4-4) and circular insertion rods (4-5), wherein the front end and the rear end of the inner sliding plate (4-1) are fixedly connected with the side blocks (4-2), the inner sliding plate (4-1) is connected in a vertical groove (3-6) in a sliding mode, the two side blocks (4-2) are respectively attached to the front end face and the rear end face of the vertical groove rod (3-5), the upper plate (4-3) is fixedly connected between the upper ends of the two side blocks (4-2), the outer sides of the two side blocks (4-2) are respectively and fixedly connected with the L-shaped rod (4-4), the right end of the L-shaped rod (4-4) is fixedly connected with the circular insertion rods (4-5), and the two circular insertion rods (4-5) are respectively inserted into a plurality of convex sockets (3-11) at the front end and a plurality of convex sockets -11) a plurality of fastening screws (3-12) each bearing on a corresponding circular plunger (4-5).

2. A leg muscle exercising device according to claim 1, wherein: the left end of the pull rope (5) is fixedly connected to the lower end of the vertical column (2-4), the pull rope (5) sequentially bypasses the supporting legs (1-10), the pulleys II (3-3) and the pulleys III (3-8), and the right end of the pull rope (5) is fixedly connected to the upper end of the upper plate (4-3).

Images