An abdominal muscle conditioning device

Abstract

This invention provides an abdominal muscle strengthening device that facilitates the adjustment of abdominal muscles, comprising: a plate, two support blocks, and two locking mechanisms; the plate has two first sliding grooves, and a guide rail is provided on the inner sidewall of the first sliding groove; the two support blocks are slidably connected to the two first sliding grooves respectively, each support block having an inner mounting cavity, and a through groove on its sidewall; the two locking mechanisms are respectively located in the two inner mounting cavities; each locking mechanism includes: a pushing member, a stop block, and an adjusting component; moving the adjusting component causes the pushing member to push the stop block, so that the stop block enters the first sliding groove from the through groove and abuts against the guide rail. This invention, by setting a stop block and a pushing member and adjusting component to drive the stop block to move, allows the adjusting component to push the pushing member, thus pushing the stop block from the through groove into the first sliding groove and abutting against the guide rail, significantly increasing the frictional resistance between the support block and the first sliding groove, achieving locking between the support block and the first sliding groove, preventing accidental slippage, and realizing precise adjustment of abdominal muscles.

Description

Technical Field

[0001] This invention relates to the field of sports exercise equipment technology, and more specifically to an abdominal strengthening device that helps to adjust abdominal muscles. Background Technology

[0002] Abdominal training boards are commonly used abdominal core training equipment in the fitness field. They can target the abdominal, lower abdominal, and oblique muscles through exercises such as crunches, effectively improving core strength and body stability. They are favored by fitness enthusiasts and professional trainers.

[0003] Commercially available ab boards typically consist of a long, narrow board with two symmetrical grooves along its length. Support blocks slide within these grooves, and each support block has a support surface on top to accommodate the elbow or forearm. Some advanced models also include a damping cable, with one end connected to the end of the board and the other to the support block, using elastic resistance to increase training intensity. Most mainstream ab boards use a pin-type or snap-lock connection between the two support blocks. For example, when training the front and lower abs, the connection locks the support blocks to make them slide synchronously. When training the obliques (specifically, side crunches), the connection unlocks the support blocks, allowing them to move independently. This allows for a movement where one elbow and foot are fixed while the other elbow drives the support block to slide. In this type of training, one support block must be movable while the other remains stationary. However, the unlocked support block still slides with the groove without a locking mechanism. When the body tilts to the side and exerts force, the lateral force generated by the torso swing can easily cause the support block that needs to be fixed to slide unexpectedly, which will disrupt the stability of the training posture, make it impossible to accurately train the oblique muscles, and affect the targeting and adjustment effect of the training. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an abdominal strengthening device that facilitates the adjustment of abdominal muscles, thereby solving the technical problem that the existing support block cannot be fixed relative to the slide groove, thus affecting the targeted training effect of abdominal muscles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides an abdominal strengthening device that facilitates the adjustment of abdominal muscles, comprising: a plate, two support blocks, and two locking mechanisms; the plate has two first sliding grooves extending along its length, and guide rails are provided on the inner sidewalls of the first sliding grooves extending along the length of the plate; the two support blocks are slidably connected to the two first sliding grooves respectively, each support block having an inner mounting cavity, and a through groove on its sidewall, the inner mounting cavity communicating with the through groove, the guide rails being embedded in the through grooves; the two locking mechanisms are respectively disposed on the two first sliding grooves. The mounting cavity is fitted with a locking mechanism comprising a pusher, a stop block, and an adjusting assembly. The stop block is slidably connected to the side of the mounting cavity near the through groove, and the sliding direction of the stop block is perpendicular to the sliding direction of the support block. The pusher is located on the side of the stop block away from the through groove, and the adjusting assembly abuts against the pusher and extends from the mounting cavity to the outside of the support block. Moving the adjusting assembly causes the pusher to push the stop block, so that the stop block enters the first slide groove from the through groove and abuts against the guide rail.

[0007] The mounting cavity bottom wall is provided with a second sliding groove, the extension direction of the second sliding groove is consistent with the extension direction of the first sliding groove, and the second sliding groove is located on the side of the stop block away from the through groove; the bottom of the pusher is provided with a connecting part, the connecting part is slidably connected to the second sliding groove; the adjustment component drives the pusher to move along the second sliding groove so that the pusher pushes the stop block to abut against the guide rail.

[0008] The mounting cavity has a third sliding groove on its top wall. The extension direction of the third sliding groove is perpendicular to the extension direction of the second sliding groove. The third sliding groove is located between the through groove and the second sliding groove. The stop block is slidably connected to the third sliding groove.

[0009] The pusher is located below the stop block on the side away from the through groove, and the stop block is slidably connected between the top wall of the pusher and the third slide groove; the top wall of the pusher is provided with at least two protruding posts, and the adjustment component drives the pusher to move so that the protruding posts push the stop block to move.

[0010] The stop block has a fourth sliding groove on its bottom wall, which is inclined from the end near the pusher toward the through groove; the protrusion is inserted into the fourth sliding groove, and at least two protrusions are linearly distributed along the inclined direction of the fourth sliding groove.

[0011] The locking mechanism further includes a compression spring; the two ends of the compression spring abut against the inner wall of the mounting cavity and the outer wall of the pusher, respectively; the extension and retraction direction of the compression spring is consistent with the sliding direction of the pusher.

[0012] Wherein, the distance between the end of the fourth slide groove closest to the compression spring and the second slide groove is less than the distance between the other end and the second slide groove.

[0013] The adjusting component includes an eccentric wheel and a rotating shaft. The eccentric wheel abuts against the end of the pusher away from the compression spring, and the rotating shaft is fixedly connected to the eccentric wheel. The central axis of the rotating shaft is on the same straight line as the axis of the eccentric wheel.

[0014] The adjustment assembly includes a first bevel gear, a second bevel gear, a connecting rod, and an adjustment knob. The first bevel gear is fixedly connected to the rotating shaft and is horizontally arranged. The second bevel gear is vertically arranged and meshes with the first bevel gear. The connecting rod is fixedly connected to the second bevel gear, and the adjustment knob is located on the outer wall of the support block and is fixedly connected to the connecting rod.

[0015] The mounting cavity has a first mounting groove on its top wall and a second mounting groove on its outer side wall that communicates with the first mounting groove. The first mounting groove and the second mounting groove are perpendicular to each other. The first bevel gear and the second bevel gear are located in the first mounting groove and the connecting rod is located in the second mounting groove.

[0016] The beneficial effects of this invention compared to the prior art are as follows: By setting a stop block and a pushing member and adjusting component to drive the stop block to move, the adjusting component pushes the pushing member, which can push the stop block from the through groove into the first slide groove and abut against the guide rail. This significantly increases the frictional resistance between the support block and the first slide groove, achieving locking between the support block and the first slide groove. During side crunch training, it can lock one side of the support block to prevent accidental slippage, ensuring the stability of the posture and achieving precise adjustment of the abdominal muscles. In addition, the locking mechanism is only set on the support block and has no mechanical connection with the plate body, which can achieve locking of the support block at any position on the first slide groove. The operation is convenient and improves the applicability of training and the user experience.

[0017] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of an abdominal strengthening device that facilitates the adjustment of abdominal muscles, provided by the present invention;

[0019] Figure 2A schematic diagram of the connection between the support block and the plate of an abdominal strengthening device that facilitates the adjustment of abdominal muscles, provided by the present invention;

[0020] Figure 3 A front view schematic diagram of the support block of an abdominal strengthening device that facilitates the adjustment of abdominal muscles, provided by the present invention;

[0021] Figure 4 A side view of the support block of an abdominal strengthening device that facilitates the adjustment of abdominal muscles, provided by the present invention;

[0022] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure at point AA;

[0023] Figure 6 A schematic diagram of the vertical cross-sectional structure of the support block of an abdominal strengthening device that facilitates the adjustment of abdominal muscles, provided by the present invention;

[0024] Figure 7 A schematic diagram of the locking mechanism of an abdominal strengthening device that facilitates the adjustment of abdominal muscles, provided by the present invention;

[0025] Figure 8 This invention provides a schematic diagram of the structure of a first bevel gear, a second bevel gear, and a connecting rod for an abdominal muscle strengthening device that facilitates the adjustment of abdominal muscles.

[0026] Figure label:

[0027] 1. Plate; 11. First slide groove; 12. Guide rail; 2. Support block; 21. Mounting cavity; 22. Through groove; 23. Second slide groove; 24. Third slide groove; 3. Locking mechanism; 31. Pushing component; 311. Connecting part; 312. Protruding post; 32. Stop block; 321. Fourth slide groove; 33. Adjustment component; 331. Eccentric wheel; 332. Rotating shaft; 333. First bevel gear; 334. Second bevel gear; 335. Connecting rod; 336. Adjustment knob; 34. Compression spring; 4. Rotating wheel; 5. Damping rope; 6. Connecting lock; 7. Handle. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0029] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0030] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0031] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0032] See Figures 1 to 8 As shown, this embodiment discloses an abdominal strengthening device that facilitates the adjustment of abdominal muscles, including: a plate 1, two support blocks 2, and two locking mechanisms 3; the plate 1 is provided with two first sliding grooves 11 extending along the length direction of the plate 1, and a guide rail 12 is provided on the inner side wall of the first sliding grooves 11 extending along the length direction of the plate 1; the two support blocks 2 are respectively slidably connected to the two first sliding grooves 11, the support blocks 2 are provided with mounting cavities 21, and the side walls of the support blocks 2 are provided with through grooves 22, the mounting cavities 21 and the through grooves 22 are connected, and the guide rails 12 are embedded in the through grooves 22; the two locking mechanisms 3 are respectively provided on the two first sliding grooves 11. The mounting cavity 21 is fitted with a locking mechanism 3, which includes a pusher 31, a stop block 32, and an adjusting component 33. The stop block 32 is slidably connected to the side of the mounting cavity 21 near the through groove 22, and the sliding direction of the stop block 32 is perpendicular to the sliding direction of the support block 2. The pusher 31 is located on the side of the stop block 32 away from the through groove 22, and the adjusting component 33 abuts against the pusher 31 and extends from the mounting cavity 21 to the outside of the support block 2. Moving the adjusting component 33 causes the pusher 31 to push the stop block 32 so that the stop block 32 enters the first slide groove 11 from the through groove 22 and abuts against the guide rail 12.

[0033] In practice, for example, when performing abdominal / lower abdominal muscle training, the hands are supported on two support blocks 2 respectively, and the legs are placed outside the board 1. After starting the crunch, the leg kick and leg return movements will cause the elbows and arms to move back and forth, thereby causing the support blocks 2 to slide back and forth along the first slide groove 11.

[0034] When performing side crunches, first adjust one of the support blocks 2 along the first slide groove 11 to a suitable position according to your body shape. Then, move the adjustment component 33 outside the support block 2 to push against the pusher 31, thereby causing the stop block 32 to move in a direction perpendicular to the sliding of the support block 2. When the stop block 32 passes through the through groove 22 and abuts against the guide rail 12, the support block 2 is locked. Next, support the training side hand on the unlocked support block 2 and the opposite hand on the locked support block 2 to perform unilateral crunches. To unlock, simply reverse the operation of the adjustment component 33, which will create a gap between the stop block 32 and the guide rail 12, separating the stop block 32 from the guide rail 12, and the support block 2 will resume its sliding function.

[0035] This embodiment of the abdominal muscle strengthening device, which facilitates the adjustment of abdominal muscles, is equipped with a stop block 32, a pusher 31 that drives the stop block 32 to move, and an adjustment component 33. The adjustment component 33 pushes against the pusher 31, which pushes the stop block 32 from the through groove 22 into the first slide groove 11 and abuts against the guide rail 12. This significantly increases the frictional resistance between the support block 2 and the first slide groove 11, thereby locking the support block 2 and the first slide groove 11. During side crunch training, it can lock one side of the support block 2 to prevent it from sliding accidentally, ensuring the stability of the posture and achieving precise adjustment of abdominal muscles. In addition, the locking mechanism 3 is only set on the support block 2 and has no mechanical connection with the plate 1. It can lock the support block 2 at any position on the first slide groove 11, making it easy to operate and improving the applicability and user experience of the training.

[0036] See Figure 6 As shown, the bottom wall of the mounting cavity 21 is provided with a second sliding groove 23, the extension direction of the second sliding groove 23 is consistent with the extension direction of the first sliding groove 11, and the second sliding groove 23 is located on the side of the stop block 32 away from the through groove 22; the bottom of the pusher 31 is provided with a connecting part 311, which is slidably connected to the second sliding groove 23; the adjusting component 33 drives the pusher 31 to move along the second sliding groove 23, so that the pusher 31 pushes the stop block 32 to abut against the guide rail 12. When the adjusting component 33 acts on the pusher 31, the pusher 31 slides along the second sliding groove 23 through the connecting part 311. During the sliding process, the pusher 31 approaches the stop block 32 and applies a pushing force, causing the stop block 32 to move towards the guide rail 12 and abut against it. The cooperation between the second sliding groove 23 and the connecting part 311 provides precise guidance for the pusher 31, avoids the pusher 31 from deviating and causing uneven force on the stop block 32, and ensures the smoothness and reliability of the locking action.

[0037] Preferably, the first slide groove 11 has guide rails 12 on both inner sidewalls extending along the length of the plate 1. There are two through grooves 22 and two stop blocks 32. The two through grooves 22 are symmetrically arranged on both sides of the pusher 31 near the guide rails 12, and the two stop blocks 32 are respectively arranged on one side of the two mounting cavities 21 near the two through grooves 22. The through grooves 22 penetrate the pusher 31. The guide rails 12 on both sides cooperate with the two through grooves 22 to make the support block 2 slide more smoothly. The bidirectional locking mechanism 3 enhances the reliability of the support block 2 locking and improves training stability.

[0038] See Figure 6 As shown, the top wall of the mounting cavity 21 is provided with a third sliding groove 24, the extension direction of which is perpendicular to the extension direction of the second sliding groove 23. The third sliding groove 24 is located between the through groove 22 and the second sliding groove 23. The stop block 32 is slidably connected to the third sliding groove 24. When the pusher 31 applies a pushing force, the stop block 32 is guided by the third sliding groove 24 and moves in a direction perpendicular to the sliding direction of the support block 2, ensuring that the stop block 32 can accurately pass through the through groove 22 and abut against the guide rail 12. The third sliding groove 24 limits the sliding trajectory of the stop block 32, preventing the stop block 32 from deviating and causing locking failure, improving the accuracy of the movement of the stop block 32, and making the locking action more reliable.

[0039] Specifically, the pusher 31 is located below the stop block 32 on the side away from the through groove 22, and the stop block 32 is slidably connected between the top wall of the pusher 31 and the third slide groove 24. At least two protrusions 312 protrude from the top wall of the pusher 31. The adjusting assembly 33 drives the pusher 31 to move, so that the protrusions 312 push the stop block 32 to move. When the adjusting assembly 33 drives the pusher 31 to slide along the second slide groove 23, the protrusions 312 on the top wall of the pusher 31 move with the pusher 31, contacting the stop block 32 and applying a pushing force. Because the stop block 32 is restricted by the third slide groove 24, it can only move along the guide rail 12 in the vertical direction. The design of multiple protrusions 312 makes the force on the stop block 32 more even, avoiding the tilting of the stop block 32 due to force applied to a single point. The upper and lower limit cooperation between the pusher 31 and the stop block 32 further improves the sliding stability of the stop block 32.

[0040] See Figures 5 to 7As shown, the bottom wall of the stop block 32 is provided with a fourth sliding groove 321, which is inclined from the end near the pusher 31 toward the through groove 22. A protrusion 312 is inserted into the fourth sliding groove 321, and at least two protrusions 312 are linearly distributed along the inclined direction of the fourth sliding groove 321. When the pusher 31 moves along the second sliding groove 23, the protrusion 312 slides within the inclined fourth sliding groove 321. Due to the inclined guidance of the fourth sliding groove 321, the horizontal movement of the protrusion 312 is converted into the vertical movement of the stop block 32 along the third sliding groove 24, pushing the stop block 32 to abut against the guide rail 12. By inclining the fourth sliding groove 321, the direction of force is converted, efficiently transforming the forward and backward movement of the pusher 31 into the vertical movement required for locking. This results in a compact structure with high transmission efficiency and reduced operating force.

[0041] In a preferred embodiment, a rolling bearing is provided on the protrusion 312. The rolling bearing contacts the fourth sliding groove 321, reducing sliding friction and improving the smoothness of movement of the stop block 32.

[0042] Specifically, the locking mechanism 3 further includes a compression spring 34; the two ends of the compression spring 34 abut against the inner wall of the mounting cavity 21 and the outer wall of the pusher 31, respectively; the extension and retraction direction of the compression spring 34 is consistent with the sliding direction of the pusher 31. During the locking operation, the adjusting component 33 pushes the pusher 31, and the pusher 31 moves to compress the compression spring 34, causing the stop block 32 to abut against the guide rail 12; during unlocking, the adjusting component 33 is reversed to release the pusher 31, the compression spring 34 resets and pushes the pusher 31 to move in the opposite direction, causing the stop block 32 to disengage from the guide rail 12.

[0043] Specifically, the distance between the end of the fourth slide groove 321 near the compression spring 34 and the second slide groove 23 is smaller than the distance between the other end and the second slide groove 23. When the pusher 31 moves in the compression direction of the compression spring 34, the protrusion 312 slides from the end of the fourth slide groove 321 near the second slide groove 23 to the far end. With the help of the slide groove inclination difference, it pushes the stop block 32 to move away from the second slide groove 23 and closer to the guide rail 12 and abuts against it. When unlocking, the compression spring 34 drives the protrusion 312 to move towards the second slide groove 23. The direction of action of the protrusion 312 on the groove wall of the fourth slide groove 321 is also towards the second slide groove 23, so that the stop block 32 is pulled back to its original position by the protrusion 312 to separate from the guide rail 12. The inclined design of the fourth slide groove 321 allows the protrusion 312 to drive the stop block 32 to generate sufficient locking displacement within the moving stroke of the pusher 31, ensuring that the stop block 32 abuts tightly against the guide rail 12 and improving locking reliability.

[0044] See Figure 7As shown, the adjustment assembly 33 includes an eccentric wheel 331 and a rotating shaft 332. The eccentric wheel 331 abuts against the end of the pusher 31 away from the compression spring 34. The rotating shaft 332 is fixedly connected to the eccentric wheel 331, and the central axis of the rotating shaft 332 is on the same straight line as the axis of the eccentric wheel 331. The rotation of the rotating shaft 332 can drive the eccentric wheel 331 to rotate. The eccentric structure of the eccentric wheel 331 causes the end of the eccentric wheel 331 away from the axis to push the pusher 31 when rotating, causing it to move in the direction of compression of the compression spring 34, thereby locking. When the rotating shaft 332 is rotated in the opposite direction, the end of the eccentric wheel 331 near the axis gradually moves closer to the pusher 31, reducing the push stroke of the eccentric wheel 331. The compression spring 34 resets, causing the pusher 31 to move back, thereby unlocking. The eccentric wheel 331 structure utilizes the lever principle, requiring only a small rotational force to push the pusher 31, achieving labor-saving operation; the eccentric wheel 331 and the pusher 31 are in surface contact, resulting in more even force distribution and avoiding localized wear.

[0045] See Figure 8 As shown, the adjusting assembly 33 includes: a first bevel gear 333, a second bevel gear 334, a connecting rod 335, and an adjusting knob 336. The first bevel gear 333 is fixedly connected to the rotating shaft 332, and is horizontally arranged. The second bevel gear 334 is vertically arranged, and the second bevel gear 334 meshes with the first bevel gear 333. The connecting rod 335 is fixedly connected to the second bevel gear 334. The adjusting knob 336 is located on the outer wall of the support block 2 and is fixedly connected to the connecting rod 335. Rotating the adjusting knob 336 on the outer side of the support block 2 drives the vertical second bevel gear 334 to rotate through the connecting rod 335. The second bevel gear 334 meshes with and drives the horizontal first bevel gear 333 to rotate, thereby driving the rotating shaft 332 and the eccentric wheel 331 to rotate, thus realizing the movement of the pushing member 31. The first bevel gear 333 and the second bevel gear 334 achieve a 90° change in the direction of power transmission, allowing the adjustment knob 336 to be located on the side of the support block 2 for easy operation, thus improving ease of use; the bevel gear transmission has high precision, ensuring that the locking action is accurate and controllable; the setting of the adjustment knob 336 and the two bevel gears allows the pusher 31 to move flexibly as needed, facilitating the adjustment of the gap between the stop block 32 and the guide rail 12, thereby enabling the damping adjustment of the support block 2 and the first slide groove 11, which helps to increase damping and improve the core training effect.

[0046] Preferably, the first bevel gear 333 and the second bevel gear 334 are made of plastic. Plastic bevel gears are low in cost, easy to maintain, repair and replace, and lightweight, which facilitates the easy movement of the support block 2.

[0047] Specifically, the top wall of the mounting cavity 21 is provided with a first mounting groove (not shown), and the outer wall of the support block 2 is provided with a second mounting groove (not shown) that communicates with the first mounting groove. The first and second mounting grooves are arranged perpendicularly to each other. The first bevel gear 333 and the second bevel gear 334 are disposed in the first mounting groove, and the connecting rod 335 is disposed in the second mounting groove. During assembly, the second bevel gear 334 is first installed into the first mounting groove to ensure that it is fixedly connected to the rotating shaft 332. Then, the first bevel gear 333 is installed into the first mounting groove and meshes with the second bevel gear 334. Then, one end of the connecting rod 335 is connected to the second bevel gear 334, and the other end passes through the second mounting groove and extends to the outside of the support block 2 and connects to the adjusting knob 336 to ensure smooth transmission. The mutually perpendicular first and second mounting grooves provide installation space for the bevel gear set and the connecting rod 335, avoiding meshing failure caused by transmission structure misalignment, while making the structural layout more compact and saving space in the mounting cavity 21.

[0048] Preferably, the inner wall of the mounting groove is provided with two positioning shafts (not shown), and bearings are fitted on the positioning shafts. The two shaft holes are respectively inserted into the shaft holes of the first bevel gear 333 and the second bevel gear 334. The positioning shafts and bearings limit the first bevel gear 333 and the second bevel gear 334, thereby improving the connection stability of the locking mechanism 3.

[0049] Specifically, the stop block 32 has anti-slip texture on one side near the guide rail 12. The anti-slip texture enhances the friction between the stop block 32 and the guide rail 12, further enhancing the locking effect of the support block 2.

[0050] Specifically, the abdominal muscle-strengthening device of this embodiment further includes: a rotating wheel 4 and a damping rope 5; the rotating wheel 4 is rotatably connected to the end face of the plate 1, and one end of the damping rope 5 is connected to the support block 2, while the other end passes around the rotating wheel 4 and is fixedly connected to the plate 1. When the user performs abdominal crunches and pushes the support block 2 along the first groove 11 to the end away from the rotating wheel 4, the damping rope 5 is pulled by the support block 2 and gradually tightens, generating elastic resistance that hinders the sliding of the support block 2. When the user returns to the starting position, the elastic restoring force of the damping rope 5 assists the support block 2 to slide back to the initial position.

[0051] Specifically, a connecting lock 6 is provided on the side where the two support blocks 2 are close to each other. It is understood that the connecting lock 6 is a snap-lock or pin-locking structure, existing technology, and will not be elaborated upon here. When performing regular, bilateral synchronous abdominal crunches, such as training the front or lower abs, the connecting lock 6 is operated to lock the two support blocks 2 together, making them a single unit. Afterwards, when the user applies force with their elbows supporting the two support blocks 2, the two support blocks 2 will slide synchronously. When performing unilateral side crunches, the connecting lock 6 must be released first, allowing the two support blocks 2 to move independently. The connecting lock 6 enables rapid linkage and separation of the two support blocks 2, allowing the abdominal exercise device to flexibly switch between bilateral synchronous training mode and unilateral independent training mode, greatly enhancing the training function and applicability of the equipment and meeting the diverse abdominal muscle training needs of users.

[0052] Specifically, the abdominal exercise device for adjusting abdominal muscles in this embodiment further includes: a handle 7; the handle 7 is hinged to the end of the support block 2 away from the rotating wheel 4. The handle 7 provides the user with a gripping space, enabling convenient movement of the support block 2 when the hand moves.

[0053] This embodiment provides an abdominal muscle strengthening device that facilitates the adjustment of abdominal muscles. By setting a stop block and a pusher and adjustment component to drive the stop block to move, the adjustment component pushes the pusher, which in turn pushes the stop block from the through groove into the first slide groove and abuts against the guide rail. This significantly increases the frictional resistance between the support block and the first slide groove, achieving locking between the support block and the first slide groove. During side crunch training, it can lock one side of the support block to prevent accidental slippage, ensuring the stability of the posture and achieving precise adjustment of abdominal muscles. In addition, the locking mechanism is only set on the support block and has no mechanical connection with the plate body. It can lock the support block at any position on the first slide groove, making it easy to operate and improving the applicability of training and the user experience.

[0054] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An abdominal muscle conditioning device for facilitating the adjustment of abdominal muscles, characterized in that, The utility model provides a kind of locking mechanism of support block, including: Plate body, two first sliding grooves are provided on the plate body and extend along the length direction of the plate body, and guide rail is provided on the inner side wall of the first sliding groove and extends along the length direction of the plate body; Two support blocks are respectively connected to the first sliding groove, the support block is provided with mounting cavity, the side wall of the support block is provided with through slot, the mounting cavity is communicated with the through slot, and the guide rail is embedded in the through slot; Two locking mechanisms are respectively arranged in the mounting cavity, and the locking mechanism includes pusher, stop block and adjusting assembly;The sliding direction of the stop block is perpendicular to the sliding direction of the support block;The pusher is arranged on the side of the stop block away from the through slot, the adjusting assembly is abutted to the pusher, and extends to the outside of the support block from the mounting cavity;The pusher pushes the stop block by moving the adjusting assembly, so that the stop block enters the first sliding groove from the through slot and is abutted to the guide rail; The bottom wall of the mounting cavity is provided with the second sliding groove, the extension direction of the second sliding groove is consistent with the extension direction of the first sliding groove, and the second sliding groove is located on the side of the stop block away from the through slot;The bottom of the pusher is provided with a connecting portion, and the connecting portion is slidably connected to the second sliding groove;The pusher pushes the stop block to abut the guide rail by moving the pusher along the second sliding groove driven by the adjusting assembly; The top wall of the mounting cavity is provided with the third sliding groove, the extension direction of the third sliding groove is perpendicular to the extension direction of the second sliding groove, and the third sliding groove is located between the through slot and the second sliding groove;The stop block is slidably connected to the third sliding groove; The pusher is arranged below the side of the stop block away from the through slot, and the stop block is slidably connected between the top wall of the pusher and the third sliding groove;The top wall of the pusher is provided with at least two protruding columns, and the protruding columns push the stop block to move by moving the pusher driven by the adjusting assembly; The bottom wall of the stop block is provided with the fourth sliding groove, and the fourth sliding groove is arranged obliquely from the end close to the pusher to the through slot;The protruding column is inserted into the fourth sliding groove, and at least two protruding columns are linearly distributed along the oblique direction of the fourth sliding groove.

2. The abdominal muscle adjusting apparatus according to claim 1, wherein The locking mechanism further includes a compression spring, and the two ends of the compression spring are respectively abutted to the inner side wall of the mounting cavity and the outer side wall of the pusher;The extension direction of the compression spring is consistent with the sliding direction of the pusher.

3. The abdominal muscle adjusting apparatus according to claim 2, wherein The distance between the end of the fourth sliding groove close to the compression spring and the second sliding groove is less than the distance between the other end of the fourth sliding groove and the second sliding groove.

4. The abdominal muscle adjusting apparatus according to claim 3, wherein The adjusting assembly includes an eccentric wheel and a rotating shaft, the eccentric wheel is abutted to the end of the pusher away from the compression spring, the rotating shaft is fixedly connected to the eccentric wheel, and the central axis of the rotating shaft and the shaft center of the eccentric wheel are located on the same straight line.

5. The abdominal muscle adjusting apparatus according to claim 4, wherein The adjusting assembly comprises a first bevel gear, a second bevel gear, a connecting rod and an adjusting knob; the first bevel gear is fixedly connected to the rotating shaft, the first bevel gear is horizontally arranged, the second bevel gear is vertically arranged, and the second bevel gear is in mesh with the first bevel gear; the connecting rod is fixedly connected to the second bevel gear, and the adjusting knob is arranged on the outer side wall of the supporting block and fixedly connected with the connecting rod.

6. The abdominal muscle adjusting apparatus according to claim 5, wherein The top wall of the mounting cavity is provided with a first mounting groove, the outer side wall of the supporting block is provided with a second mounting groove in communication with the first mounting groove, and the first mounting groove and the second mounting groove are arranged perpendicularly to each other; the first bevel gear and the second bevel gear are arranged in the first mounting groove, and the connecting rod is arranged in the second mounting groove.

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