Multifunctional comfortable quadriceps femoris exercising equipment

Abstract

The utility model provides a multifunctional comfortable quadriceps femoris exercise equipment relates to quadriceps femoris exercise equipment technical field, including bottom case, seat and backrest, one side of seat is symmetrically fixed with fixed plate, the inner side of fixed plate is fixed with fixed rod, the top of fixed rod is evenly opened with spacing hole. The pull rod is pulled upwards, the pull rod moves to drive the limiting rod to synchronously ascend in the C-shaped frame, the fixing block on the outer wall of the limiting rod compresses the first spring, the first spring moves upwards along with the limiting rod and is separated from the current limiting hole and the insertion hole, a user can freely slide the sliding sleeve left and right according to the leg length of the user, and when the sliding sleeve reaches a proper position, the user can move the sliding sleeve left and right. After the pull rod is loosened, the limiting rod is inserted into the corresponding limiting hole and the inserting hole again under the elastic action of deformation recovery of the first spring, so that the sliding sleeve is firmly fixed to a new position, the use position of the load column is adjusted, the leg length difference of different users is met, and the comfortable experience during exercise is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of quadriceps muscle exercise equipment, especially to a multifunctional comfortable quadriceps muscle exercise equipment. BACKGROUND

[0002] In the field of fitness and rehabilitation training, effective exercise of quadriceps muscle is crucial, as an important muscle group on the front side of the thigh, the strength of quadriceps muscle plays an important role in maintaining normal walking, running, jumping and other daily activities, improving sports performance, preventing and relieving knee joint diseases, etc.

[0003] However, the traditional quadriceps muscle exercise equipment has many limitations, one of the most notable problems is that it cannot adjust the position of the load column according to the user's leg length. Different users have different leg lengths, and if the position of the load column cannot match the leg length when using the exercise equipment, it will seriously affect the exercise effect and experience. For users with long legs, the load column is too close, which limits the power space and makes it difficult to fully stretch the legs, so it cannot effectively stimulate the quadriceps muscle. Users with short legs may need to exert excessive force to touch the load column during exercise, which not only easily causes fatigue, but also may cause sports injuries due to improper posture. In addition, this mismatch will make users feel uncomfortable during exercise, reducing the enthusiasm and continuity of exercise, so it needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems mentioned in the background art and provides a multifunctional comfortable quadriceps muscle exercise equipment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multifunctional comfortable quadriceps muscle exercise equipment, including bottom shell, seat and backrest, the seat is fixedly installed on one side symmetrically The fixed plate is fixedly installed on the inner side of the fixed plate, the top of the fixed rod is uniformly provided with a limiting hole, the outer surface of the fixed rod is slidably connected with a sliding sleeve, the top of the sliding sleeve is provided with a plug hole, the top of the sliding sleeve is fixedly installed with a C-shaped frame, the inside of the C-shaped frame is slidably connected with a limiting rod, the outer wall of the limiting rod is fixedly installed with a fixed block, the outer wall of the limiting rod is sleeved with a spring one, the top end of the limiting rod is fixedly installed with a pull rod, one side of the sliding sleeve is rotatably connected with a rotating shaft, the end of the rotating shaft away from the sliding sleeve is fixedly installed with a connecting rod, the inner side of the connecting rod is fixedly installed with a load column, the outer side of the connecting rod is fixedly installed with a cylinder, the outer wall of the cylinder is uniformly slidably connected with a counterweight, the outer side of the connecting rod is fixedly installed with a fixed column, the end of the fixed column away from the connecting rod is fixedly installed with a stop block, the outer wall of the fixed column is slidably connected with a limiting piece, the outer wall of the fixed column is sleeved with a spring two.

[0006] Preferably, the limiting rod is in sliding connection with the limiting hole and the insertion hole.

[0007] Preferably, one end of the spring one is fixedly connected with the fixed block, and the other end of the spring one is fixedly connected with the C-shaped frame.

[0008] Preferably, the bottom shell is fixedly connected with the seat, and the backrest is fixedly connected with the seat.

[0009] Preferably, one end of the spring two is fixedly connected with the limiting piece, and the other end of the spring two is fixedly connected with the stopper.

[0010] Preferably, the limiting piece is in sliding connection with the cylinder.

[0011] Preferably, handrails are fixedly installed on both sides of the top of the seat.

[0012] Preferably, a long plate is fixedly installed on the inner side of the bottom of the bottom shell, a guide column is fixedly installed on the top of the long plate, a motor is fixedly installed on the top of the bottom shell, an output end of the motor is fixedly installed with a lead screw, a rectangular plate is threadedly connected to the outer wall of the lead screw, and rollers are uniformly and symmetrically fixedly installed on the bottom of the rectangular plate.

[0013] Preferably, the rectangular plate is in sliding connection with the guide column.

[0014] Preferably, the guide column is fixedly connected with the bottom shell, and the lead screw is rotatably connected with the long plate.

[0015] Compared with the prior art, the utility model has the advantages and positive effects that,

[0016] 1、in the utility model, by pulling the pull rod upwards, the movement of the pull rod drives the limiting rod to synchronously ascend in the C-shaped frame, the fixed block on the outer wall of the limiting rod can compress the spring one, along with the limiting rod moving upwards, it is separated from the current limiting hole and insertion hole, at this moment, the user can freely slide the sleeve left and right according to the own leg length, when the sleeve reaches the appropriate position, the pull rod is loosened, under the elastic force of the spring one restoring deformation, the limiting rod is reinserted into the corresponding limiting hole and insertion hole, so as to firmly fix the sleeve in the new position, realize the adjustment of the use position of the load column, satisfy the leg length difference of different users, and ensure the comfortable experience when exercising.

[0017] 2. The utility model discloses, through the starting motor, the motor works will drive the screw rod rotation, because the screw rod is connected between the rectangular plate threadedly, and the rectangular plate is connected between the guide column slidingly, so the screw rod rotation will drive the rectangular plate to slide down along the outer wall of guide column, the rectangular plate slides down in the process will drive multiple groups of gyro wheel to move down together, after moving a certain distance, multiple groups of gyro wheel will be in contact with the ground and lift the equipment, after lifting, can promote the equipment to move, this design passes through the mechanism of motor drive screw rod rotation, realized the convenient movement of equipment bottom, the user is convenient in different scenes, according to actual use demand, adjusts the placement position of equipment flexibly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a whole structure schematic diagram of multifunctional comfortable quadriceps muscle exercise equipment;

[0019] Figure 2 The utility model provides a partial explosion structure schematic diagram of multifunctional comfortable quadriceps muscle exercise equipment;

[0020] Figure 3 The utility model provides a whole structure schematic diagram of multifunctional comfortable quadriceps muscle exercise equipment; Figure 2 The utility model provides a whole structure schematic diagram of multifunctional comfortable quadriceps muscle exercise equipment;

[0021] Figure 4 The utility model provides a whole structure schematic diagram of multifunctional comfortable quadriceps muscle exercise equipment; Figure 2 The utility model provides a whole structure schematic diagram of multifunctional comfortable quadriceps muscle exercise equipment;

[0022] Figure 5 The utility model provides a whole structure schematic diagram of multifunctional comfortable quadriceps muscle exercise equipment;

[0023] Figure 6 The utility model provides a whole structure schematic diagram of multifunctional comfortable quadriceps muscle exercise equipment.

[0024] Legend: 1, bottom shell, 2, seat, 3, backrest, 4, fixed plate, 5, fixed rod, 6, limit hole, 7, sliding sleeve, 8, jack, 9, C type frame, 10, limit rod, 11, fixed block, 12, spring one, 13, pull rod, 14, pivot, 15, connecting rod, 16, load column, 17, cylinder, 18, counterweight, 19, fixed column, 20, stopper, 21, limit piece, 22, spring two, 23, long plate, 24, guide column, 25, motor, 26, screw rod, 27, rectangular plate, 28, gyro wheel, 29, handrail. DETAILED DESCRIPTION

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1: As Figures 1-5 As shown, this utility model provides a technical solution: a multifunctional comfort quadriceps exercise device, including a base shell 1, a seat 2, and a backrest 3. A fixing plate 4 is symmetrically fixedly installed on one side of the seat 2. A fixing rod 5 is fixedly installed on the inner side of the fixing plate 4. Limiting holes 6 are evenly opened on the top of the fixing rod 5. A sliding sleeve 7 is slidably connected to the outer surface of the fixing rod 5. An insertion hole 8 is opened through the top of the sliding sleeve 7. A C-shaped frame 9 is fixedly installed on the top of the sliding sleeve 7. A limiting rod 10 is slidably connected inside the C-shaped frame 9. A fixing block 11 is fixedly installed on the outer wall of the limiting rod 10. A spring 12 is sleeved on the outer wall of the limiting rod 10. A pull rod 13 is fixedly installed on the top of the limiting rod 10. A rotating shaft 14 is rotatably connected to one side of the sliding sleeve 7. A connecting rod 15 is fixedly installed at the end of the rotating shaft 14 away from the sliding sleeve 7. A load column 16 is fixedly installed on the inner side of the connecting rod 15. A cylinder 17 is fixedly installed on the outer side of the connecting rod 15. A counterweight 18 is evenly slidably connected to the outer wall of the cylinder 17. A fixed column 19 is fixedly installed on the outer side of the connecting rod 15. A stop block 20 is fixedly installed at the end of the fixed column 19 away from the connecting rod 15. A limit member 21 is slidably connected to the outer wall of the fixed column 19. A second spring 22 is sleeved on the outer wall of the fixed column 19. A limit rod 10 is slidably connected to a limit hole 6 and an insertion hole 8. One end of the first spring 12 is fixedly connected to the fixed block 11. The other end of the first spring 12 is fixedly connected to the C-shaped frame 9. The bottom shell 1 is fixedly connected to the seat 2. The backrest 3 is fixedly connected to the seat 2. One end of the second spring 22 is fixedly connected to the limit member 21. The other end of the second spring 22 is fixedly connected to the stop block 20. The limit member 21 is slidably connected to the cylinder 17. Armrests 29 are fixedly installed on both sides of the top of the seat 2.

[0028] In this embodiment, by pulling the lever 13 upward, the movement of the lever 13 causes the limiting lever 10 to rise synchronously within the C-frame 9. The fixing block 11 on the outer wall of the limiting lever 10 compresses the spring 12. As the limiting lever 10 moves upward, it disengages from the current limiting hole 6 and insertion hole 8. At this time, the user can freely slide the sliding sleeve 7 left and right according to their own leg length. When the sliding sleeve 7 reaches the appropriate position, the lever 13 is released. Under the elastic force of the spring 12 restoring its deformation, the limiting lever 10 is reinserted into the corresponding limiting hole 6 and insertion hole 8, thereby firmly fixing the sliding sleeve 7 in the new position. This realizes the adjustment of the position of the load column 16 to meet the differences in leg length among different users and ensure a comfortable experience during exercise.

[0029] Example 2: Figures 5-6 As shown, a long plate 23 is fixedly installed on the inner side of the bottom of the bottom shell 1, a guide post 24 is fixedly installed on the top of the long plate 23, a motor 25 is fixedly installed on the top of the bottom shell 1, a lead screw 26 is fixedly installed at the output end of the motor 25, a rectangular plate 27 is threadedly connected to the outer wall of the lead screw 26, rollers 28 are evenly and symmetrically fixedly installed on the bottom of the rectangular plate 27, the rectangular plate 27 is slidably connected to the guide post 24, the guide post 24 is fixedly connected to the bottom shell 1, and the lead screw 26 is rotatably connected to the long plate 23.

[0030] In this embodiment, by starting the motor 25, the motor 25 drives the lead screw 26 to rotate. Since the lead screw 26 is threadedly connected to the rectangular plate 27 and the rectangular plate 27 is slidably connected to the guide post 24, the rotation of the lead screw 26 will drive the rectangular plate 27 to slide downward along the outer wall of the guide post 24. During the downward sliding process, the rectangular plate 27 will drive multiple sets of rollers 28 to move downward together. After moving a certain distance, the multiple sets of rollers 28 will contact the ground and lift the device. After being lifted, the device can be pushed to move. This design realizes the convenient movement of the bottom of the device through the mechanism of the motor 25 driving the lead screw 26 to rotate, which allows users to flexibly adjust the placement of the device according to actual usage needs in different scenarios.

[0031] The working principle of the embodiment is as follows: when the user performs leg exercise, the regular flexion and extension movement of the legs becomes the starting point of power transmission of the whole exercise device, and as the legs stretch and contract, the rotating shaft 14 closely associated with the leg movement is driven to start rotating, and due to the stable connection between the rotating shaft 14 and the connecting rod 15, the rotation of the rotating shaft 14 smoothly drives the connecting rod 15 to move, at this time, the load column 16 installed on the inner side of the connecting rod 15 becomes the key force point that the user must overcome the resistance in the process of exercising the quadriceps femoris, and the process that the user leg muscles push the load column 16 to move is the process of effectively exercising the quadriceps femoris, and on the outer side of the connecting rod 15, a plurality of counterweights 18 freely sliding along the outer wall of the cylinder 17 are distributed on the cylinder 17, and the user adjusts the exercise load mainly by changing the number of counterweights 18 on the cylinder 17, when the user expects to increase the exercise load, the additional counterweights 18 can be slid onto the cylinder 17, so that the number of counterweights 18 participating in the exercise increases, and since each counterweight 18 has a certain mass, more counterweights 18 means greater total weight, under the action of the principle of leverage, when the connecting rod 15 rotates around the rotating shaft 14, the resistance moment generated by the counterweights 18 that the user's legs need to overcome increases, thereby increasing the exercise load intensity and applying stronger stimulation to the quadriceps femoris, which is suitable for users with higher exercise intensity requirements, on the contrary, if the user feels that the current exercise load is too large and wants to reduce the intensity, he / she only needs to remove part of the counterweights 18 on the cylinder 17, as the number of counterweights 18 decreases, the total weight decreases, accordingly, the resistance moment that the user's legs need to overcome when driving the connecting rod 15 to move the load column 16 decreases, and the exercise load decreases, this design of adjusting the exercise load by flexibly changing the number of counterweights 18 can fully meet the individual needs of different users at different exercise stages. In order to ensure the stability of the position of the counterweights 18 during exercise, the fixed column 19 on the outer side of the connecting rod 15 is sleeved with the spring 22, and is connected with the limiting piece 21, the limiting piece 21 can slide on the cylinder 17, when the user completes the adjustment of the number of counterweights 18, the spring 22 will push the limiting piece 21 to tightly abut against the cylinder 17, preventing the counterweights 18 from being displaced due to the influence of vibration during exercise or user movement. When the user needs to adjust the use position of the load column 16, he / she only needs to pull the pull rod 13 upwards, the movement of the pull rod 13 drives the limiting rod 10 to synchronously rise in the C-shaped frame 9, the fixed block 11 on the outer wall of the limiting rod 10 will compress the spring 1, and as the limiting rod 10 moves upwards, it is separated from the current limiting hole 6 and the insertion hole 8, at this time, the user can freely slide the sliding sleeve 7 left and right according to the length of his / her legs, when the sliding sleeve 7 reaches the appropriate position, the pull rod 13 is released, and under the action of the elastic force of the spring 1 recovering the deformation, the limiting rod 10 is reinserted into the corresponding limiting hole 6 and insertion hole 8, thereby fixing the sliding sleeve 7 in the new position, realizing the adjustment of the use position of the load column 16 to meet the leg length difference of different users and ensure the comfortable experience during exercise.When the device needs to be moved, first start the motor 25, the motor 25 works and drives the screw rod 26 to rotate, because the screw rod 26 is in threaded connection with the rectangular plate 27, and the rectangular plate 27 is in sliding connection with the guide column 24, so when the screw rod 26 rotates, it drives the rectangular plate 27 to slide down along the outer wall of the guide column 24, in the process of sliding down, the rectangular plate 27 drives the multiple groups of rollers 28 to move down, after moving a certain distance, the multiple groups of rollers 28 will contact the ground and lift the device, after lifting, the device can be pushed to move, the design realizes the convenient movement of the bottom of the device through the mechanism that the motor 25 drives the screw rod 26 to rotate, which is convenient for the user to flexibly adjust the placing position of the device according to the actual use demand in different scenes.

[0032] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application without departing from the technical scheme of the present application still fall within the protection scope of the present application.

Claims

1. A multifunctional comfortable quadriceps muscle exercising device comprising a bottom case (1), a seat (2) and a backrest (3), characterized in that: One side of the seat (2) is symmetrically fixedly installed with a fixed plate (4), the inner side of the fixed plate (4) is fixedly installed with a fixed rod (5), the top of the fixed rod (5) is uniformly provided with a limiting hole (6), the outer surface of the fixed rod (5) is slidably connected with a sliding sleeve (7), the top of the sliding sleeve (7) is penetratively provided with a insertion hole (8), the top of the sliding sleeve (7) is fixedly installed with a C-shaped frame (9), the inside of the C-shaped frame (9) is slidably connected with a limiting rod (10), the outer wall of the limiting rod (10) is fixedly installed with a fixed block (11), the outer wall of the limiting rod (10) is sleeved with a spring (12), the top end of the limiting rod (10) is fixedly installed with a pull rod (13), one side of the sliding sleeve (7) is rotatably connected with a rotating shaft (14), the end, away from the sliding sleeve (7), of the rotating shaft (14) is fixedly installed with a connecting rod (15), the inner side of the connecting rod (15) is fixedly installed with a load column (16), the outer side of the connecting rod (15) is fixedly installed with a cylinder (17), the outer wall of the cylinder (17) is uniformly slidably connected with a counterweight (18), the outer side of the connecting rod (15) is fixedly installed with a fixed column (19), the end, away from the connecting rod (15), of the fixed column (19) is fixedly installed with a stopper (20), the outer wall of the fixed column (19) is slidably connected with a limiting piece (21), the outer wall of the fixed column (19) is sleeved with a spring (22).

2. The multi-functional comfort quadriceps femoris muscle exercise device according to claim 1, characterized in that: The limiting rod (10) is slidably connected between the limiting hole (6) and the insertion hole (8).

3. The multi-functional comfort quadriceps femoris muscle exercise device according to claim 1, characterized in that: One end of the spring (12) is fixedly connected between the fixed block (11), and the other end of the spring (12) is fixedly connected between the C-shaped frame (9).

4. The multi-functional comfort quadriceps femoris muscle exercise device, as recited in claim 1, wherein: The bottom shell (1) is fixedly connected with the seat (2), and the backrest (3) is fixedly connected with the seat (2).

5. The multi-functional comfort quadriceps femoris muscle exercise device, as recited in claim 1, wherein: One end of the spring (22) is fixedly connected between the limiting piece (21), and the other end of the spring (22) is fixedly connected between the stopper (20).

6. The multi-functional comfort quadriceps femoris muscle exercise device, as recited in claim 1, wherein: The limiting piece (21) is slidably connected with the cylinder (17).

7. The multi-functional comfort quadriceps femoris muscle exercise device, as recited in claim 1, wherein: The top of the seat (2) is fixedly installed with an armrest (29) on both sides.

8. The multi-functional comfort quadriceps femoris muscle exercise device, as recited in claim 1, wherein: The bottom of the bottom shell (1) is fixedly installed with a long plate (23), the top of the long plate (23) is fixedly installed with a guide column (24), the top of the bottom shell (1) is fixedly installed with a motor (25), the output end of the motor (25) is fixedly installed with a lead screw (26), the outer wall of the lead screw (26) is threadedly connected with a rectangular plate (27), and the bottom of the rectangular plate (27) is uniformly and symmetrically fixedly installed with a roller (28).

9. The multi-functional comfort quadriceps femoris muscle exercise device according to claim 8, characterized in that: The rectangular plate (27) is slidably connected with the guide column (24).

10. The multi-functional comfort quadriceps femoris muscle exercise device, as recited in claim 8, wherein: The guide column (24) is fixedly connected with the bottom shell (1), and the lead screw (26) is rotatably connected with the long plate (23).

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