A chin-up assist device that acts as an assisted exercise or load exercise

Abstract

The present application relates to the technical fields of fitness equipment, in particular to a multifunctional pull-up auxiliary device, comprising two symmetrically arranged supports, two upper portions of the supports being provided with movable rods for supporting hands of a user, the supports being fixedly connected with support rods, the support rods being provided with sliders sliding up and down, the auxiliary device further comprising a pedal for the user to stand on, the supports being connected with first connecting structures and second connecting structures on upper and lower sides of the sliders respectively, the first connecting structures and the second connecting structures being detachably connected with the sliders; the upper and lower sides of the sliders are respectively provided with the first connecting structures and the second connecting structures, the connection relationship between the first connecting structures, the second connecting structures and the sliders being changed, the influence of the pedal on the user being adjusted, and the effect of auxiliary exercise or load exercise being achieved.

Description

[0001] Cross-reference to related applications

[0002] This application is a divisional application of Chinese patent application No. 2022109083273, filed on July 29, 2022, entitled "A Multifunctional Pull-up Assist Device". Technical Field

[0003] This invention relates to the technical field of fitness equipment, and in particular to a multifunctional pull-up assist device. Background Technology

[0004] Fitness training offers numerous health benefits, and gyms provide a variety of exercise equipment to aid in effective workouts from different perspectives. Pull-ups are a relatively simple exercise that strengthens the upper body and is a fundamental method for training the back. However, existing pull-up equipment is quite basic, only providing a simple environment for the basic pull-up movement. Different exercisers have different needs; beginners require supplementary equipment, while advanced users require weight training, which current equipment cannot provide. Summary of the Invention

[0005] In order to solve the technical problems mentioned in the background art, the purpose of this invention is to provide a multifunctional pull-up assist device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional pull-up assist device, comprising two symmetrically arranged supports, the two supports being fixedly connected by a connecting rod, a movable rod for supporting the user's hands being provided above the two supports, a support rod being fixedly connected to the supports, and a slider that slides up and down being installed on the support rod; the assist device further comprises a footboard for the user to stand on, the footboard and the sliders on both sides being fixedly connected, and a connecting structure for fixing the user's feet being installed on the footboard; the supports are respectively connected to a first connecting structure and a second connecting structure on the upper and lower sides of the slider, the first connecting structure and the second connecting structure being respectively fitted with a first spring and a second spring, the first spring being used to provide an upward elastic force to the slider, the second spring being used to provide a downward elastic force to the slider, the first connecting structure and the second connecting structure being detachably connected to the slider; during assisted exercise, the first connecting structure is connected to the slider, and the second connecting structure is separated from the slider; during load exercise, the second connecting structure is connected to the slider, and the first connecting structure is separated from the slider.

[0007] Compared with the prior art, the present application has the beneficial effects that: through the pedal and the movable rod, a space for exercise is given to the user, the user can stand on the pedal and hold the movable rod to exercise, the upper and lower sides of the sliding block are respectively provided with the first connecting structure and the second connecting structure, the connecting relationship of the first connecting structure and the second connecting structure and the sliding block is changed, so that the pedal is subjected to upward force or downward force, and the user can be affected by external force during exercise, thereby achieving the effects of auxiliary exercise or load exercise.

[0008] Further, the connecting structure comprises two straps, one end of the strap is fixedly connected with the pedal, and the other end of the strap is connected with a locking mechanism.

[0009] Further, the locking mechanism comprises a lock seat and a lock block, the lock block is fixedly connected with the strap, the pedal is provided with a receiving groove, the lock seat is rotationally connected with the sidewall of the receiving groove, one side of the lock seat is provided with a clamping groove, the other side of the lock seat is rotationally connected with a clamping plate, the clamping plate is fixedly connected with an extension block, when locking, one side of the lock block is clamped into the clamping groove, and the other side of the lock block is clamped with the clamping plate.

[0010] Further, the width of the extension block is less than that of the lock block, the upper end surface of the lock block is fixedly connected with two fixed blocks, the upper end of the fixed block is provided with a chamfer, when locking, the fixed blocks are located on both sides of the extension block, and when unlocking, one of the fixed blocks abuts against the lower end surface of the extension block.

[0011] Further, the sidewall of the sliding block is provided with a lock groove, the upper and lower walls of the lock groove are respectively threadedly connected with a first locking screw rod and a second locking screw rod, the first locking screw rod is detachably connected with the first connecting structure, the second locking screw rod is detachably connected with the second connecting structure, and the first locking screw rod and the second locking screw rod both penetrate through the sliding block.

[0012] Further, the first connecting structure comprises a first telescopic rod, the first spring is sleeved on the first telescopic rod, the first spring is connected with the upper and lower ends of the first telescopic rod, and the first locking screw rod is threadedly connected with the first telescopic rod.

[0013] Further, the lower end of the fixed plate is fixedly connected with an extension rod, the extension rod is slidingly connected with the upper end of the first telescopic rod, a connecting rod is fixedly connected to the first telescopic rod, the connecting rod is slidingly connected with the supporting rod, a screw rod for increasing friction is threadedly connected to the connecting rod, and when locking, the screw rod abuts against the supporting rod.

[0014] Further, the second connecting structure comprises a second telescopic rod, the lower end of the second telescopic rod is fixedly connected with the support, the second telescopic rod is connected with the sliding block through a connecting mechanism, the second spring is sleeved on the second telescopic rod, and the second spring is connected between the connecting mechanism and the second telescopic rod.

[0015] Further, the connecting mechanism comprises a first hook block and a second hook block, the second locking screw is fixedly connected with the first hook block, the first hook block is located below the sliding block, the upper end of the second telescopic rod is fixedly connected with the second hook block, and the first hook block is connected with the second hook block during load exercise. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the overall structure of an embodiment of the present application;

[0017] Figure 2 It is a schematic view of the pedal structure of an embodiment of the present application;

[0018] Figure 3 It is a schematic view of the locking mechanism structure of an embodiment of the present application;

[0019] Figure 4 It is a schematic view of the support structure of an embodiment of the present application;

[0020] Figure 5 It is Figure 4 It is an enlarged schematic view of position A in FIG. 4;

[0021] Figure 6 It is a schematic view of the locking groove structure of an embodiment of the present application.

[0022] In the drawings: 11, support; 12, fixed plate; 21, extension frame; 22, connecting rod; 23, movable rod; 24, connecting groove; 31, sliding block; 32, support rod; 33, first telescopic rod; 35, extension rod; 36, connecting rod; 41, pedal; 42, accommodating groove; 43, binding belt; 44, lock seat; 45, lock block; 451, fixed block; 46, clamping plate; 47, clamping groove; 61, first hook block; 62, second telescopic rod; 63, second hook block; 64, locking groove; 65, first locking screw; 66, second locking screw. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] Embodiment:

[0025] Please refer to Figure 1 , the application provides a multifunctional pull-up auxiliary device, comprising two symmetrical supports 11, two supports 11 are fixedly connected through connecting rods, the upper part of two supports 11 is provided with a movable rod 23 for supporting the hands of the user, the top of the support 11 is fixedly installed with an extension frame 21, a plurality of connecting grooves 24 are arranged on the extension frame 21, the connecting grooves 24 penetrate through the extension frame 21 and are provided with openings, the auxiliary device further comprises a movable rod 23 for supporting the hands of the user, the two ends of the movable rod 23 are respectively clamped on both sides of the connecting grooves 24, a plurality of connecting grooves 24 are sequentially arranged from top to bottom, which can be adjusted according to the height requirement of the user, and the use condition is met, further, two supports 11 are fixedly connected through the connecting rods at the bottom, and the extension frame 21 is fixedly connected through the connecting rods 22 at the top.

[0026] The support 11 comprises a bottom plate at the lowermost side and a frame body fixed on the bottom plate, a fixed plate 12 is fixedly installed on the side wall of the frame body, the lower end surface of the fixed plate 12 is fixedly connected with a supporting rod 32, the supporting rod 32 is vertically arranged, the lower end of the supporting rod 32 is fixedly connected with the bottom plate of the support 11, the supporting rods 32 are arranged in pairs, a sliding block 31 is slidingly installed on the supporting rod 32, the sliding block 31 is slidingly connected with the two supporting rods 32, the auxiliary device further comprises a pedal 41 for the user to stand on, the pedal 41 is horizontally arranged, and the pedal 41 is fixedly connected with the two sliding blocks 31, the user moves between the movable rod 23 and the pedal 41 to exercise pull-ups.

[0027] The lower end of the fixed plate 12 is connected with a first connecting structure, the lower side of the support 11 is connected with a second connecting structure, the first connecting structure and the second connecting structure both comprise a spring, the first connecting structure and the second connecting structure are both detachably connected with the sliding block 31, when the first connecting structure is connected with the sliding block 31, the sliding block 31 is subjected to an external upward force, when the second connecting structure is connected with the sliding block 31, the sliding block 31 is additionally subjected to a downward force, the state of the device is switched between auxiliary exercise and load exercise by adjusting the first connecting structure and the second connecting structure; when auxiliary exercise, the first connecting structure is connected with the sliding block 31, and the second connecting structure is separated from the sliding block 31, when load exercise, the second connecting structure is connected with the sliding block 31, and the first connecting structure is separated from the sliding block 31, as Figure 4 shown.

[0028] The first connecting structure comprises a first telescopic rod 33, the first telescopic rod 33 comprises an outer rod and an inner rod sliding in the outer rod, the first telescopic rod 33 comprises a spring, the spring is sleeved on the inner rod, one end of the spring is fixedly connected with the outer rod, the other end of the spring is connected with the sliding block 31, and the end of the inner rod extending out of the outer rod is detachably connected with the sliding block 31, so that the effect of applying external force is realized, the upper end of the outer rod is slidingly connected with an extension rod 35, the upper end of the extension rod 35 is fixedly connected with the fixed plate 12, the position of the first telescopic rod is adjusted through the extension rod 35 and the outer rod, the external force assisting the upward body pulling is changed, and the stability of the first telescopic rod 33 is ensured, the outer wall of the first telescopic rod 33 is fixedly connected with a connecting rod 36, the connecting rod 36 is slidingly connected with the supporting rod 32, and a screw rod is threadedly connected with the connecting rod 36, the friction between the connecting rod 36 and the supporting rod 32 is increased through the screw rod, and the effect of adjusting and locking is realized, as shown in Figure 4

[0029] Further, the second connecting structure comprises a second telescopic rod 62, the second telescopic rod 62 and the first telescopic rod 33 are the same in structure, and the outer rod of the second telescopic rod 62 is fixed to the support 11.

[0030] In order to ensure that the first connecting structure and the second telescopic mechanism can be detachably connected with the sliding block 31, a lock groove 64 is arranged on the side wall of the sliding block 31, first and second locking screw rods 65 and 66 are threadedly connected with the upper and lower walls of the lock groove 64 respectively, and the first locking screw rod 65 is threadedly connected with the inner rod of the first telescopic rod 33.

[0031] Since the second telescopic mechanism applies load to the user when working, when the load far exceeds the limit of the user, the load will have an additional impact on the user, therefore, the connection between the second telescopic mechanism and the sliding block 31 needs to be quickly disconnected, the second locking screw rod 66 is fixedly connected with a first hook block 61 outside the sliding block 31, the upper end of the second telescopic rod 62 is connected with a second hook block 63, the first hook block 61 is connected with the second hook block 63 during load exercise, a spring is arranged on the second telescopic rod 62, and the spring connects the second telescopic rod 62 and the second hook block 63.

[0032] ​Since the user needs to contact the pedal 41 when doing auxiliary exercise or load exercise, the connection between the user's leg and the pedal 41 needs to be stable, the connection structure includes two elastic bands 43, the elastic band 43 is made of elastic material, the user's leg is fixed on the pedal 41 through the elastic band, one end of the elastic band 43 is fixedly connected with the pedal 41, the other end of the elastic band 43 is connected with a locking mechanism, on the other hand, the user may encounter unexpected situations such as losing strength during exercise, at this time, it is not convenient to separate the leg and the pedal 41, therefore, the elastic band 43 is connected through the locking mechanism, and the locking mechanism can be separated by leg force, as shown in Figure 2 .

[0033] As shown in Figure 3 , the locking mechanism includes a lock seat 44 and a lock block 45, the lock block 45 is fixedly connected with the elastic band 43, the pedal 41 is provided with a containing groove 42, the lock seat 44 is rotatably connected with the side wall of the containing groove 42, one side of the lock seat 44 is provided with a clamping groove 47, the other side of the lock seat 44 is rotatably connected with a clamping plate 46, the clamping plate 46 is fixedly connected with an extension block 461, the upper end surface of the extension block 461 has a round corner, the width of the extension block 461 is less than the lock block 45, the upper end surface of the lock block 45 is fixedly connected with two fixed blocks 451, the upper end surface of the fixed block 451 has an inclined surface, when locking, the fixed block 451 is located on both sides of the extension block 461, one side of the lock block 45 is located below the extension block 461, the other side of the lock block 45 is clamped into the clamping groove 47, the lock block 45 cannot be separated upward, when unlocking, the user rotates the leg, the lock block 45 is driven to rotate through the elastic band 43, the fixed block 451 abuts against the lower end surface of the extension block 461, so that the clamping rod 46 rotates, at this time, the lock block 45 and the lock seat 44 can be separated.

[0034] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A pull-up assist device for assisting exercise or load training, comprising two symmetrically arranged supports (11), the two supports (11) being fixedly connected by a connecting rod, characterized in that: The bracket (11) has a movable rod (23) above it for supporting the user's hands. A support rod (32) is fixedly connected to the bracket (11). A slider (31) that slides up and down is installed on the support rod (32). The auxiliary device also includes a footboard (41) for the user to stand on. The footboard (41) and the sliders (31) on both sides are fixedly connected. A connecting structure for fixing the user's feet is installed on the footboard (41). The bracket (11) is connected to the upper and lower sides of the sliders (31) by a first connecting structure and a second connecting structure, respectively. The first connecting structure and the second connecting structure are connected to each other. A first spring (13) and a second spring (14) are respectively sleeved on the connecting structure. The first spring (13) is used to provide the slider (31) with an upward elastic force, and the second spring (14) is used to provide the slider (31) with a downward elastic force. Both the first connecting structure and the second connecting structure are detachably connected to the slider (31). During assisted exercise, the first connecting structure is connected to the slider (31), and the second connecting structure is separated from the slider (31). During load exercise, the second connecting structure is connected to the slider (31), and the first connecting structure is separated from the slider (31). The slider (31) has a locking groove (64) on its side wall. The upper and lower walls of the locking groove (64) are respectively threaded with a first locking screw (65) and a second locking screw (66). The first locking screw (65) and the first connecting structure are detachably connected, and the second locking screw (66) and the second connecting structure are detachably connected. Both the first locking screw (65) and the second locking screw (66) pass through the slider (31).

2. The pull-up assist device according to claim 1, which assists in training or load training, is characterized in that: The connection structure includes two straps (43), one end of which is fixedly connected to the pedal (41), and the other end of which is connected to a locking mechanism. When in use, the exerciser's foot is inserted under the strap (43).

3. The pull-up assist device according to claim 2, which assists in training or load training, is characterized in that: The locking mechanism includes a lock seat (44) and a lock block (45). The lock block (45) and the strap (43) are fixedly connected. The pedal (41) is provided with a receiving groove (42). The lock seat (44) and the side wall of the receiving groove (42) are rotatably connected. One side of the lock seat (44) is provided with a slot (47). The other side of the lock seat (44) is rotatably connected with a card plate (46). An extension block (461) is fixedly connected to the card plate (46). When locked, one side of the lock block (45) is inserted into the slot (47), and the other side of the lock block (45) is engaged with the card plate (46).

4. The pull-up assist device according to claim 3, which assists in training or load training, is characterized in that: The width of the extension block (461) is smaller than that of the locking block (45). Two fixing blocks (451) are fixedly connected to the upper end face of the locking block (45). The upper end of the fixing block (451) is chamfered. When locked, the fixing block (451) is located on both sides of the extension block (461). When unlocked, one of the fixing blocks (451) abuts against the lower end face of the extension block (461).

5. The pull-up assist device according to claim 1, characterized in that: The first connecting structure includes a first telescopic rod (33), a first spring (13) sleeved on the first telescopic rod (33), the first spring (13) connecting the upper and lower ends of the first telescopic rod (33), and the first locking screw (65) threadedly connected to the first telescopic rod (33).

6. A pull-up assist device according to claim 5, characterized in that: The bracket includes a bottom plate at the bottom and a frame fixed to the bottom plate. A fixing plate is fixedly installed on the side wall of the frame. An extension rod (35) is fixedly connected to the lower end of the fixing plate (12). The extension rod (35) and the upper end of the first telescopic rod (33) are slidably connected. A connecting rod (36) is fixedly connected to the first telescopic rod (33). The connecting rod (36) and the support rod (32) are slidably connected. A screw for increasing friction is threaded onto the connecting rod (36). When locked, the screw abuts against the support rod (32).

7. The pull-up assist device according to claim 1, which assists in training or load training, is characterized in that: The second connecting structure includes a second telescopic rod (62), the lower end of the second telescopic rod (62) is fixedly connected to the bracket (11), the second telescopic rod (62) is connected to the slider (31) through a connecting mechanism, the second spring (14) is sleeved on the second telescopic rod (62), and the second spring (14) connects the connecting mechanism and the second telescopic rod (62).

8. A pull-up assist device according to claim 7, characterized in that: The connecting mechanism includes a first hook block (61) and a second hook block (63). The second locking screw (66) is fixedly connected to the first hook block (61). The first hook block (61) is located below the slider (31). The upper end of the second telescopic rod (62) is fixedly connected to the second hook block (63). During load training, the first hook block (61) and the second hook block (63) are connected.

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