A crunch and deep squat machine

By designing an abdominal crunch machine that combines squats and sit-ups, the problem of poor abdominal training effect of existing squat machines has been solved, achieving a comprehensive workout for the legs and abdomen.

CN224585274UActive Publication Date: 2026-08-04XIAMEN SHUANG SHENG METAL PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN SHUANG SHENG METAL PROD CO LTD
Filing Date
2025-08-04
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing squat machines primarily work the leg muscles, and are not very effective for abdominal exercises.

Method used

Design an abdominal crunch machine that combines squat and sit-up movements, using a flip-up seat and a flexible backrest bar to enable multiple workouts, including squats and sit-ups.

Benefits of technology

It effectively exercises leg and abdominal muscles, enhances abdominal fitness, and provides flexibility with a variety of exercise options.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224585274U_ABST
    Figure CN224585274U_ABST
Patent Text Reader

Abstract

The utility model relates to a sit -up deep squat machine relates to the field of physical exercise, including front support, rear bottom bar and two arcuate rods, the rear end of two arcuate rods is connected with rear bottom bar, and the front end of two arcuate rods is connected with first sleeve pipe, and the front end of first sleeve pipe is connected with front support, the bottom of first sleeve pipe is connected with support pipe, and the bottom of support pipe is connected with support plate, the front support is equipped with first hook foot pole and first support rod, first hook foot pole is equipped with two first hook foot foam, first support rod is equipped with two first support foam, support pipe is equipped with second hook foot pole, second hook foot pole is equipped with two second hook foot foam, the top of two arcuate rods is equipped with the reversible seat cushion, and the top of two arcuate rods is equipped with rotatable and has the elasticity backrest pole, backrest pole is equipped with a plurality of second support rod, second support rod is equipped with two second support foam, the utility model can make deep squat action, can also make sit -up action.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of sports exercise equipment, specifically to an abdominal crunch machine. Background Technology

[0002] A squat machine is a common fitness device primarily used to help users effectively exercise their leg muscles. Using a squat machine can increase muscle strength and endurance, and improve lower body mobility and stability. Patent CN216798619U discloses a squat abdominal toning machine, which includes a base; an L-shaped seat tube with its long side mounted on the upper end of the base; a ring-shaped armrest mounted on the top of the short side of the L-shaped seat tube; a rocker arm with one end hinged to the short side of the L-shaped seat tube; a seat mounted on the other end of the rocker arm; and a reset cylinder with its two ends hinged to the bottom of the rocker arm and the top of the long side of the L-shaped seat tube, respectively.

[0003] The squatting ab machine disclosed above can only allow users to perform squatting movements and does not have other exercise options. It mainly works the leg muscles and is not very effective for abdominal exercises. Utility Model Content

[0004] This utility model provides an abdominal crunch machine, the main purpose of which is to overcome the problem that existing squat machines can only perform up and down squatting movements, resulting in poor abdominal fitness effects.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A squatting machine includes a front support, a rear base rod, and two arc-shaped rods arranged to the left and right. The rear ends of the two arc-shaped rods are fixedly connected to the rear base rod. A first sleeve is connected between the front ends of the two arc-shaped rods. The front end of the first sleeve is connected to the front support. A support tube is connected to the bottom of the first sleeve. A support plate is connected to the bottom of the support tube. The front support has a first foot hook rod and a first support rod. The first support rod is located at the top of the front support, and the first foot hook rod is located below the first support rod. The first foot hook rod is fitted with two first foot hook foams arranged to the left and right. The first support rod is fitted with two first support foams arranged to the left and right. A second foot hook rod is provided on the support tube. The second foot hook rod is fitted with two second foot hook foams arranged to the left and right. A flip-up seat cushion is provided on the top surface of the two arc-shaped rods. A rotatable and elastic backrest rod is provided above the two arc-shaped rods. The backrest rod has multiple second support rods arranged vertically. The second support rod is fitted with two second support foams arranged to the left and right.

[0006] Furthermore, both of the arc rods are connected to hinge plates, and a rotating cylinder is connected to the bottom of the backrest rod, with the rotating cylinder hinged between the hinge plates of the two arc rods.

[0007] Furthermore, a swing arm is connected to the bottom of the backrest rod, and a tension spring is provided between the bottom of the swing arm and the bottom of the two arc rods.

[0008] Furthermore, the front end face and rear end face of the swing arm are respectively provided with a front buffer limiter and a rear buffer limiter, and a front limit tube and a rear limit tube are provided between the two arc rods, with the front buffer limiter and the rear buffer limiter corresponding to the front limit tube and the rear limit tube respectively.

[0009] Furthermore, the top surfaces of both of the arc rods are connected to hinge ears, and a second sleeve is hinged between the hinge ears of the two arc rods. The cushion is connected to the top surface of the second sleeve, and a limiting rod is provided between the two arc rods. After the cushion is flipped over, the second sleeve abuts against the limiting rod.

[0010] Furthermore, the second sleeve is provided with a retractable second telescopic tube, the front end of which extends out of the front end face of the second sleeve. A third support rod is connected to the top front end face of the second telescopic tube, and two third support foams arranged on the left and right sides are sleeved on the third support rod. A support pad is connected to the bottom front end face of the second telescopic tube, and the support pad can abut against the top surface of the first sleeve.

[0011] Furthermore, the first sleeve is provided with a retractable first telescopic tube, the front end of which extends out of the front end face of the first sleeve and is connected to the front bracket.

[0012] Furthermore, each of the two arc rods is provided with a stretchable elastic rope on one side, and a handle ring is connected to the front end of the elastic rope.

[0013] Furthermore, one side of the arc rod is connected to a connecting seat and a first U-shaped component. The first U-shaped component is located in front of the connecting seat. A rotatable first rope wheel is provided in the opening of the first U-shaped component. Two second U-shaped components are provided at the top of the rear bottom rod. Each second U-shaped component corresponds to an elastic rope. A rotatable second rope wheel is provided in the second U-shaped component. The rear end of the elastic rope is fixedly connected to the connecting seat. The elastic rope passes around the first rope wheel and the second rope wheel.

[0014] Furthermore, one side of the arc rod is connected to multiple locking components arranged in a front-to-back manner, and the connecting seat is provided with a locking hook, which hooks onto the locking components.

[0015] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following advantages: This utility model has a novel structure and ingenious design. It can be used for both squatting and sit-ups. When the user performs a squat, the seat cushion is flipped towards the backrest to reduce the distance between the legs, providing a comfortable standing space. The user then sits on the upper second support foam, hooking their feet onto the two second foot hook foams. Due to the elasticity of the backrest, the user can perform a squat while sitting on the upper second support foam. When the user performs a sit-up, the seat cushion is flipped back to its original position. The user sits on the seat cushion and hooks their feet onto the two first foot hook foams. The two first support foams support the back of the legs. The user can then perform a sit-up. When performing a sit-up, the backrest can contact the second support foams on the backrest. As the sit-up progresses, the backrest can move up and down elastically. This invention enables squats and sit-ups, effectively exercising not only the leg muscles but also the abdominal muscles. Compared to squats, sit-ups are more effective at exercising the abdominal muscles. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention.

[0017] Figure 2 This is a structural diagram of the present invention from another angle.

[0018] Figure 3 This is an exploded view of the structure of this utility model.

[0019] Figure 4 This is a structural diagram of the seat cushion of this utility model after it has been flipped over. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Reference Figures 1 to 4 A squatting machine includes a front support 1, a rear base rod 2, and two arc-shaped rods 3 arranged on the left and right. The rear ends of the two arc-shaped rods 3 are fixedly connected to the rear base rod 2. A first sleeve 4 is connected between the front ends of the two arc-shaped rods 3. The front end of the first sleeve 4 is connected to the front support 1. A support tube 5 is connected to the bottom of the first sleeve 4. A support plate 6 is connected to the bottom of the support tube 5. The front support 1 is provided with a first hook foot rod 7 and a first support rod 8. The first support rod 8 is located at the top of the front support 1, and the first hook foot rod 7 is located below the first support rod 8. The first hook foot rod 7 is fitted with two first hook foot foams 9 arranged on the left and right. The first support rod 8 is fitted with two first support foams 10 arranged on the left and right. A second hook foot rod 11 is provided on the support tube 5. The second hook foot rod 11 is fitted with two second hook foot foams 12 arranged on the left and right. The top surfaces of the two arc rods 3 are provided with a flip-up seat cushion 13, and the top of the two arc rods 3 is provided with a rotatable and elastic backrest rod 14. The backrest rod 14 is provided with multiple second support rods 15 arranged vertically, and the second support rods 15 are fitted with two second support foams 16 arranged horizontally.

[0024] Reference Figure 1Both of the two arc rods 3 are connected to hinge plates 17. The bottom of the backrest rod 14 is connected to a rotating cylinder 18, which is hinged between the hinge plates 17 of the two arc rods 3. The bottom of the backrest rod 4 is connected to a swing rod 19. Specifically, the top of the swing rod 19 is connected to the rotating cylinder 18, and a tension spring 20 is provided between the bottom of the swing rod 19 and the bottom of the two arc rods 3. In this embodiment, there are two tension springs 20, which are arranged side by side. When the backrest rod 14 is subjected to pressure and moves downward, the bottom of the swing rod 19 swings forward and stretches the tension spring 20. When the pressure on the backrest rod 14 is released, the backrest rod 14 and the swing rod 19 automatically return to their original positions under the elastic force of the tension spring 20. A third pin 21 is provided between the hinge plates 17 of the two arc rods 3. The third pin 21 passes through the swing rod 19. When the backrest rod 14 is not in use, the third pin 21 passes through the hinge plates 17 and the swing rod 19 of the two arc rods 3. At this time, the backrest rod 14 cannot be pressed down. If the backrest rod 14 needs to be pressed down, the third pin 21 can be pulled out directly.

[0025] Reference Figure 1 and Figure 2 The front and rear faces of the swing arm 19 are respectively provided with a front buffer limiter 22 and a rear buffer limiter 23. A front limiter tube 24 and a rear limiter tube 25 are provided between the two arc rods 3. The front buffer limiter 22 and the rear buffer limiter 23 correspond to the front limiter tube 24 and the rear limiter tube 25, respectively. The cooperation of the front buffer limiter 22 and the front limiter tube 24 is used to limit the maximum distance of the bottom of the swing arm 19 swinging forward. The cooperation of the rear buffer limiter 23 and the rear limiter tube 25 is used to limit the maximum distance of the bottom of the swing arm 19 swinging backward. Both the front buffer limiter 22 and the rear buffer limiter 23 are buffer pads.

[0026] Reference Figures 1 to 3The top surfaces of both arc rods 3 are connected to hinge ears 26, and a second sleeve 27 is hinged between the hinge ears 26 of the two arc rods 3. The cushion 13 is connected to the top surface of the second sleeve 27. A cylindrical limiting rod 44 is provided between the two arc rods 3. After the cushion 13 is flipped, the second sleeve 27 abuts against the limiting rod 44 to prevent the cushion 13 from being damaged due to collision with the hinge ears 26 and the rotating cylinder 18 during the flipping process. The second sleeve 27 is provided with a retractable second telescopic tube 29. The front end of the second telescopic tube 29 extends out of the front end face of the second sleeve 27. The top surface of the front end of the second telescopic tube 29 is connected to a third support rod 30. The third support rod 30 is fitted with two third support foams 31 arranged on the left and right. The bottom front end of the second telescopic tube 29 is connected to a support pad 28, which can abut against the top surface of the first sleeve 4, and the support pad 28 can support the front end of the second telescopic tube 29. The second sleeve 27 is hinged between the hinge ears of the two arc rods 3, so that the second sleeve 27, the seat cushion 13, the second telescopic tube 29 and the third support foam 31 can be flipped synchronously.

[0027] Reference Figure 2 and Figure 3 The second telescopic tube 29 is provided with a plurality of second pin holes 291 arranged front and rear. The second sleeve 27 is provided with a second pin (not shown in the figure due to view limitations). The second pin (not shown in the figure due to view limitations) is inserted into the second pin hole 291. When the second pin (not shown in the figure due to view limitations) is pulled out, the second telescopic tube 29 can extend and retract within the second sleeve 27. When the second telescopic tube 29 is adjusted to the required length, the second pin (not shown in the figure due to view limitations) is reinserted into different second pin holes 291. When the second telescopic tube 29 extends and retracts, the positions of the two third support foams 31 change accordingly to accommodate users of different heights.

[0028] Reference Figure 1 and Figure 3 The first sleeve 4 is provided with a retractable first telescopic tube 32. The front end of the first telescopic tube 32 extends out of the front end face of the first sleeve 4 and is connected to the front bracket 1. The first telescopic tube 32 is provided with multiple first pin holes 33 arranged front and rear. The first sleeve 4 is provided with a first pin 34, which is inserted into the first pin hole 33. When the first pin 34 is pulled out, the first telescopic tube 32 can extend and retract within the first sleeve 4. When the first telescopic tube 32 is adjusted to the required length, the first pin 34 is inserted into different first pin holes 33. When the first telescopic tube 32 extends and retracts, the position of the front bracket 1 changes accordingly to accommodate users of different heights.

[0029] Reference Figure 1 and Figure 2 Each of the two arc-shaped rods 3 has a stretchable elastic rope 35 on one side, with a handle ring 36 connected to the front end of the elastic rope 35. A connecting seat 37 and a first U-shaped component 38 are connected to one side of each arc-shaped rod 3. The first U-shaped component 38 is located in front of the connecting seat 37, and a rotatable first rope pulley 39 is located inside the opening of the first U-shaped component 38. Two second U-shaped components 40 are located at the top of the rear bottom rod 2, each corresponding to an elastic rope 35. A rotatable second rope pulley 41 is located inside the second U-shaped component 40. The rear end of the elastic rope 35 is fixedly connected to the connecting seat 37, and the elastic rope 35 passes over the first rope pulley 39 and the second rope pulley 41. The elastic ropes 35 on one side of the two arc-shaped rods 3 allow for hand stretching, thus exercising the arms. The first rope pulley 39 and the second rope pulley 41 serve as a transition point for the elastic ropes 35. In this embodiment, one side of the arc rod 3 is connected to a plurality of clamps 42 arranged in the front and rear. The connecting seat 37 is provided with a hook 43, which hooks onto the clamps 42. The hook 43 can be hooked onto different clamps 42 to adjust the position of the elastic rope 35. The tension of the elastic rope 35 can be changed by hooking the hook 43 onto different clamps 42.

[0030] Reference Figure 1 , Figure 2 and Figure 4 The design principle of this utility model is as follows: This utility model can be used for both squatting and sit-ups. When the user performs a squat, the seat cushion 13 is rotated 90° towards the backrest bar 14. After rotating the seat cushion 13 90°, the distance between the legs is reduced, allowing for a comfortable standing space. Then, the user's buttocks sit on the upper second support foam 16, and the feet hook onto the two second hook foot foams 12 respectively. Since the backrest bar 14 is elastic, the user can perform a squat while sitting on the upper second support foam 16. The third support foam 31 provides support for the popliteal fossa when the user performs a squat. When the user performs sit-ups, the seat cushion 13 is flipped back to its original position. The user sits on the seat cushion 13 and hooks their feet onto the two first foot hook foams 9. The two first support foams 10 support the backs of the legs. At this point, the user can perform sit-ups. When performing sit-ups, the backrest can contact the second support foam 16 on the backrest bar 14. As the sit-up continues, the backrest bar 14 can move up and down elastically. The support tube 5 and support plate 6 can support the first sleeve 4, enhancing the support strength of the first sleeve 4. In addition, while sitting on the seat cushion 13, the user can also pull the elastic band 35 with both hands for arm exercises.

[0031] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A crunch and deep squat machine characterized by: The device includes a front support, a rear base rod, and two arc-shaped rods arranged on the left and right. The rear ends of the two arc-shaped rods are fixedly connected to the rear base rod. A first sleeve is connected between the front ends of the two arc-shaped rods. The front end of the first sleeve is connected to the front support. A support tube is connected to the bottom of the first sleeve, and a support plate is connected to the bottom of the support tube. The front support has a first hook foot rod and a first support rod. The first support rod is located at the top of the front support, and the first hook foot rod is located below the first support rod. The first hook foot rod is fitted with two first hook foot foams arranged on the left and right. The first support rod is fitted with two first support foams arranged on the left and right. A second hook foot rod is provided on the support tube. The second hook foot rod is fitted with two second hook foot foams arranged on the left and right. A flip-up seat cushion is provided on the top surface of the two arc-shaped rods. A rotatable and elastic backrest rod is provided above the two arc-shaped rods. The backrest rod has multiple second support rods arranged vertically. The second support rod is fitted with two second support foams arranged on the left and right.

2. A crunch and deep squat machine as claimed in claim 1 wherein: Both of the arc rods are connected to hinge plates, and the bottom of the backrest rod is connected to a rotating cylinder, which is hinged between the hinge plates of the two arc rods.

3. A crunch and deep squat machine as claimed in claim 1 wherein: The bottom of the backrest rod is connected to a swing arm, and a tension spring is provided between the bottom of the swing arm and the bottom of the two arc rods.

4. A crunch and deep squat machine as claimed in claim 3 wherein: The front and rear faces of the swing arm are respectively provided with a front buffer limiter and a rear buffer limiter, and a front limit tube and a rear limit tube are provided between the two arc rods. The front buffer limiter and the rear buffer limiter correspond to the front limit tube and the rear limit tube, respectively.

5. The crunch and squat machine of claim 1 wherein: The top surfaces of the two arc rods are connected to hinge ears, and a second sleeve is hinged between the hinge ears of the two arc rods. The seat cushion is connected to the top surface of the second sleeve. A limiting rod is provided between the two arc rods. After the seat cushion is flipped over, the second sleeve abuts against the limiting rod.

6. A crunch and deep squat machine as claimed in claim 5 wherein: The second sleeve is provided with a retractable second telescopic tube. The front end of the second telescopic tube extends out of the front end face of the second sleeve. The top front end face of the second telescopic tube is connected to a third support rod. The third support rod is fitted with two third support foams arranged on the left and right. The bottom front end face of the second telescopic tube is connected to a support pad. The support pad can abut against the top surface of the first sleeve.

7. The abdominal crunch and squat machine of claim 1 wherein: The first sleeve is provided with a retractable first telescopic tube, the front end of which extends out of the front end face of the first sleeve and is connected to the front bracket.

8. The abdominal crunch and deep squat machine of claim 1 wherein: Each of the two arc rods is provided with a stretchable elastic rope on one side, and a handle ring is connected to the front end of the elastic rope.

9. A crunch and deep squat machine as claimed in claim 8 wherein: One side of the arc rod is connected to a connecting seat and a first U-shaped component. The first U-shaped component is located in front of the connecting seat. A rotatable first rope wheel is provided in the opening of the first U-shaped component. Two second U-shaped components are provided on the top of the rear bottom rod. Each second U-shaped component corresponds to an elastic rope. A rotatable second rope wheel is provided in the second U-shaped component. The rear end of the elastic rope is fixedly connected to the connecting seat. The elastic rope passes around the first rope wheel and the second rope wheel.

10. A crunch and deep squat machine as claimed in claim 9, wherein: One side of the arc rod is connected to multiple fasteners arranged in a front-to-back manner, and the connecting seat is provided with a hook, which hooks onto the fasteners.