Sit-up trainer

Abstract

The utility model discloses a sit-up training device which comprises a suction cup base and a foot fixing assembly, the foot fixing assembly comprises a connecting piece, an adjusting piece and a foot fixing rod, the bottom end of the connecting piece is fixedly connected with the suction cup base, an activity space is formed in the connecting piece, the adjusting piece is arranged in the activity space, and the foot fixing rod is connected with the adjusting piece. The top end of the adjusting piece is exposed out of the movable space, the foot fixing rod is arranged at the top end of the adjusting piece, a movable groove channel is formed in the adjusting piece, a limiting table is annularly arranged in the movable groove channel, a plurality of limiting tooth grooves are formed in the limiting table, a control piece is arranged on the connecting piece, the inner end of the control piece is arranged in the movable groove channel, and a clamping block is arranged at the inner end of the control piece. When the sit-up trainer is used, the control piece is pressed to move inwards to enable the clamping block to be separated from the limiting tooth groove, at the moment, the adjusting piece can move up and down, the distance between the foot fixing rod and the ground can be changed according to the requirements of a user, the user feels more comfortable during exercise, and exercise is more facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, in particular to a sit-up training device. Background Art

[0002] Sit-up training is a common fitness exercise that mainly exercises the abdominal and waist muscles. Because the sit-up training requires the use of abdominal strength to lift the upper limbs without the hips and feet leaving the ground or moving, people who have not received professional training especially need to use equipment to fix their feet when doing sit-up training.

[0003] Most of the common sit-up trainers in the prior art are provided with a suction cup at the bottom for fixing the device, and a foot fixing rod is fixedly provided on the device. When in use, the heel is in contact with the ground, and the instep is in contact with the side of the foot fixing rod. The foot will not move during the sit-up training. However, most of the foot fixing rods are fixed on the device, and the distance between the foot fixing rod and the ground cannot be adjusted. Since the sizes of the feet of different users are different, when the size of the foot is too large, the contact point between the instep and the foot fixing rod will change, and the user's foot and the foot fixing rod cannot be in a comfortable state. Therefore, it is necessary to invent a sit-up trainer to solve the above problems. Summary of the invention

[0004] The utility model aims to provide a sit-up trainer with a simple structure, which can change the distance between the foot fixing rod and the ground according to the needs of the user, so that the user can exercise more comfortably and more conducive to exercise.

[0005] The purpose of the utility model is achieved in this way:

[0006] The foot fixing assembly comprises a connecting piece, an adjusting piece and a foot fixing rod, the bottom end of the connecting piece is fixedly connected to the suction cup base, a movable space is formed in the connecting piece, the adjusting piece is arranged in the movable space, the adjusting piece can move up and down relative to the connecting piece, the top of the adjusting piece is exposed outside the movable space, the foot fixing rod is arranged at the top end of the adjusting piece, a movable groove is opened on the adjusting piece, a limit platform is arranged in the inner ring of the movable groove, a plurality of limit tooth grooves are arranged on the limit platform, a control piece is arranged on the connecting piece, the inner end of the control piece is arranged in the movable groove, the inner end of the control piece is provided with a clamping block clamped with the plurality of limit tooth grooves, the control piece is pressed to move inwardly so that the clamping block is disengaged from the limit tooth groove and releases the clamping state with the adjusting piece, and the adjusting piece can move up and down at this time.

[0007] Furthermore, the connecting member includes a left connecting bar and a right connecting bar, a guide block is provided on the inner side of the left connecting bar, a guide groove is opened at the inner end of the control member, a control spring is provided in the guide groove, and one end of the guide block is arranged in the guide groove to abut against the control spring.

[0008] Furthermore, a control hole is opened on the right connecting bar, the inner end of the control member passes through the control hole and is arranged in the movable channel, and the outer end of the control member is arranged outside the right connecting bar.

[0009] Furthermore, a mounting platform is provided on the suction cup base, a mounting hole is opened on the mounting platform, a foot rod is provided in the mounting hole, and an anti-slip sleeve is sleeved on the foot rod.

[0010] Furthermore, a fixing hole is provided at the top end of the adjusting member, the foot fixing rod is arranged in the fixing hole, and a soft sleeve is provided on the foot fixing rod.

[0011] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0012] A sit-up training device comprises a suction cup base and a foot fixing assembly arranged on the suction cup base, wherein the foot fixing assembly comprises a connecting piece, an adjusting piece and a foot fixing rod, wherein the bottom end of the connecting piece is fixedly connected to the suction cup base, an activity space is formed inside the connecting piece, the adjusting piece is arranged in the activity space, the adjusting piece can move up and down relative to the connecting piece, the top end of the adjusting piece is exposed outside the activity space, the foot fixing rod is arranged at the top end of the adjusting piece, an activity groove is provided on the adjusting piece, and a limit platform is provided inside the activity groove The limit platform is provided with a plurality of limit teeth and grooves, the connecting member is provided with a control member, the inner end of the control member is arranged in the movable groove, the inner end of the control member is provided with a clamping block clamped with the plurality of limit teeth and grooves, the control member is pressed to move inward to disengage the clamping block from the limit teeth and groove and release the clamping state of the adjusting member, at which time the adjusting member can move up and down; before using the sit-up trainer, the user first adsorbs the suction cup at the bottom of the suction cup base to the ground, so as to ensure that the sit-up trainer will not be loose when the user uses it, because the connection The inner end of the control member on the component is arranged in the movable groove, and the clamping block at the inner end of the control member is clamped with the limiting tooth groove on the limiting platform in the movable groove. At this time, the adjusting member cannot move up and down relative to the connecting member, so that the length of the adjusting member extending out of the movable space cannot be adjusted. The distance between the foot fixing rod at the top of the adjusting member and the ground is fixed. Due to the different sizes of feet of different users, when the user wants to adjust the distance between the foot fixing rod and the ground according to his own needs, thereby changing the contact point between the instep and the foot fixing rod to make the exercise more comfortable, the user can press the control member to move the clamping block at the inner end of the control member inwardly, so that the clamping block is separated from the limiting tooth groove on the limiting platform and the adjusting member is released from the clamping state. At this time, the adjusting member can move up and down relative to the connecting member, so that the foot fixing rod is adjusted to the height desired by the user. Compared with the existing sit-up trainers, most of the foot fixing rods on the equipment are fixed on the equipment and the distance between the foot fixing rod and the ground cannot be adjusted. The utility model can adjust the distance between the foot fixing rod and the ground by pressing the control member, so that the user can exercise more comfortably and is more conducive to exercise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a stereogram of the utility model.

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Figure 3 It is an exploded view of the suction cup base and the connecting piece of the utility model.

[0016] Figure 4 It is an exploded view of the adjusting member and the connecting member of the utility model.

[0017] Figure 5It is an exploded view of the left connecting bar and the right connecting bar of the utility model.

[0018] Figure 6 It is a stereogram of the right connecting strip of the utility model.

[0019] Figure 7 It is an exploded view of the control part and the control spring of the utility model.

[0020] Figure 8 It is a structural schematic diagram of the regulating part and the control part of the utility model.

[0021] Fig. 9 It is a structural schematic diagram of the adjusting member and the foot fixing rod of the utility model.

[0022] Fig.10 It is an exploded view of the suction cup base and the foot lever of the utility model.

[0023] The meaning of the symbols in the figure:

[0024] 1-suction cup base; 6-connecting piece; 7-foot fixing rod; 12-left connecting bar; 13-right connecting bar;

[0025] 29-adjusting member; 30-movable groove; 31-limiting platform; 32-limiting tooth groove;

[0026] 33-control member; 34-clamping block; 35-guide block; 36-guide groove;

[0027] 37-control spring; 38-control hole; 39-mounting platform; 40-mounting hole; 41-foot lever;

[0028] 42-anti-slip cover; 47-fixing hole; 48-soft cover. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with specific embodiments:

[0030] A sit-up training device comprises a suction cup base 1 and a foot fixing assembly arranged on the suction cup base 1, wherein the foot fixing assembly comprises a connecting member 6, an adjusting member 29 and a foot fixing rod 7, wherein the bottom end of the connecting member 6 is fixedly connected to the suction cup base 1, an activity space is formed in the connecting member 6, the adjusting member 29 is arranged in the activity space, the adjusting member 29 can move up and down relative to the connecting member 6, the top end of the adjusting member 29 is exposed outside the activity space, the foot fixing rod 7 is arranged at the top end of the adjusting member 29, an activity groove 30 is provided on the adjusting member 29, and a limit platform 3 is provided inside the activity groove 30 1, a plurality of limiting tooth grooves 32 are arranged on the limiting platform 31, a control member 33 is provided on the connecting member 6, the inner end of the control member 33 is arranged in the movable groove 30, and the inner end of the control member 33 is provided with a clamping block 34 clamped with the plurality of limiting tooth grooves 32, and the clamping block 34 is disengaged from the limiting tooth grooves 32 and the clamping state of the adjusting member 29 is released by pressing the control member 33 to move inward, and the adjusting member 29 can move up and down at this time; before using the sit-up trainer, the user first adsorbs the suction cup at the bottom of the suction cup base 1 to the ground, so as to ensure that the sit-up trainer will not be loose when the user uses it, The inner end of the control member 33 on the connecting member 6 is set in the movable groove 30, and the clamping block 34 at the inner end of the control member 33 is clamped with the limiting tooth groove 32 on the limiting platform 31 in the movable groove 30. At this time, the adjusting member 29 cannot move up and down relative to the connecting member 6, so that the length of the adjusting member 29 extending out of the movable space cannot be adjusted. The distance between the foot fixing rod 7 at the top of the adjusting member 29 and the ground is fixed. Due to the different sizes of the feet of different users, when the user wants to adjust the distance between the foot fixing rod 7 and the ground according to his own needs, thereby changing the contact point between the instep and the foot fixing rod 7 to make the exercise more comfortable, the user can adjust the distance between the foot fixing rod 7 and the ground according to his own needs. The control member 33 is pressed to move the engaging block 34 at the inner end of the control member 33 inward, thereby disengaging the engaging block 34 from the limiting tooth groove 32 on the limiting platform 31 and releasing the engaging state of the adjusting member 29. At this time, the adjusting member 29 can move up and down relative to the connecting member 6, so that the foot fixing rod 7 can be adjusted to the height desired by the user. Compared with the existing sit-up trainers, most of the foot fixing rods 7 on the sit-up trainers are fixed on the equipment and the distance between the foot fixing rod 7 and the ground cannot be adjusted. The utility model can adjust the distance between the foot fixing rod 7 and the ground by pressing the control member 33, so that the user can exercise more comfortably and more conducive to exercise.

[0031] Preferably, the connecting member 6 includes a left connecting bar 12 and a right connecting bar 13, the inner side of the left connecting bar 12 is provided with a guide block 35, the inner end of the control member 33 is provided with a guide groove 36, and a control spring 37 is provided in the guide groove 36, one end of the guide block 35 is arranged in the guide groove 36 and abuts against the control spring 37; because the guide block 35 on the left rotating bar abuts against the control spring 37 in the guide groove 36 on the control member 33, after the user presses the control member 33 to move inward, the control spring 37 in the guide groove 36 will be in a compressed state. After adjusting the length of the adjusting member 29 extending out of the activity space and releasing the control member 33, the compressed control spring 37 will push the control member 33 to automatically reset and re-enter the clamping state with the adjusting member 29, so that the foot fixing rod 7 on the adjusting member 29 will not be loose when the user exercises, and the user does not need to manually clamp the control member 33 with the adjusting member 29, which is simple, fast and convenient to operate.

[0032] Preferably, a control hole 38 is opened on the right connecting bar 13, and the inner end of the control member 33 passes through the control hole 38 and is arranged in the movable groove 30, and the outer end of the control member 33 is arranged outside the right connecting bar 13; the setting of the control hole 38 enables the control member 33 to smoothly enter the movable groove 30 and engage with the adjustment member 29, and the outer end of the control member 33 is arranged outside the right rotating bar, so that the user can press the control member 33 more conveniently and quickly.

[0033] Preferably, a mounting platform 39 is provided on the suction cup base 1, a mounting hole 40 is opened on the mounting platform 39, a foot rod 41 is provided in the mounting hole 40, and an anti-slip cover 42 is provided on the foot rod 41; the foot rod 41 is fixedly arranged on the mounting platform 39 on the fixed seat, and the foot rod 41 is covered with an anti-slip cover 42, and the user can step his feet on the anti-slip cover 42 when exercising, which can effectively avoid the occurrence of slipping of the soles of the feet compared to direct contact with the ground.

[0034] Preferably, a fixing hole 47 is opened at the top of the adjusting member 29, the foot fixing rod 7 is arranged in the fixing hole 47, and a soft cover 48 is provided on the foot fixing rod 7; the setting of the soft cover 48 enables the user to use the sit-up trainer to exercise, and when the user leans the instep against the soft cover 48 of the foot fixing rod 7, the soft cover 48 can play a certain protective role for the user's foot, and the user will be more comfortable during exercise.

[0035] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sit-up training device, comprising a suction cup base (1) and a foot fixing assembly arranged on the suction cup base (1), characterized in that: The foot fixing assembly comprises a connecting member (6), an adjusting member (29) and a foot fixing rod (7); the bottom end of the connecting member (6) is fixedly connected to the suction cup base (1); a movable space is formed in the connecting member (6); the adjusting member (29) is arranged in the movable space; the adjusting member (29) can move up and down relative to the connecting member (6); the top end of the adjusting member (29) is exposed outside the movable space; the foot fixing rod (7) is arranged at the top end of the adjusting member (29); a movable groove (30) is provided on the adjusting member (29); A limiting platform (31) is provided in the inner ring of the movable groove (30), and a plurality of limiting tooth grooves (32) are arranged on the limiting platform (31). A control member (33) is provided on the connecting member (6), and the inner end of the control member (33) is arranged in the movable groove (30). A clamping block (34) clamped with the plurality of limiting tooth grooves (32) is provided at the inner end of the control member (33). When the control member (33) is pressed to move inward, the clamping block (34) is separated from the limiting tooth groove (32) and the clamping state with the adjusting member (29) is released, and the adjusting member (29) can move up and down.

2. A sit-up training device according to claim 1, characterized in that: The connecting member (6) comprises a left connecting bar (12) and a right connecting bar (13); a guide block (35) is provided on the inner side of the left connecting bar (12); a guide groove (36) is provided at the inner end of the control member (33); a control spring (37) is provided in the guide groove (36); one end of the guide block (35) is arranged in the guide groove (36) and abuts against the control spring (37).

3. A sit-up training device according to claim 2, characterized in that: The right connecting strip (13) is provided with a control hole (38), the inner end of the control member (33) passes through the control hole (38) and is arranged in the movable channel (30), and the outer end of the control member (33) is arranged outside the right connecting strip (13).

4. A sit-up training device according to claim 3, characterized in that: The suction cup base (1) is provided with a mounting platform (39), the mounting platform (39) is provided with a mounting hole (40), a pedal rod (41) is provided in the mounting hole (40), and an anti-slip sleeve (42) is sleeved on the pedal rod (41).

5. A sit-up training device according to claim 4, characterized in that: A fixing hole (47) is provided at the top end of the adjusting member (29), the foot fixing rod (7) is arranged in the fixing hole (47), and a soft cover (48) is provided on the foot fixing rod (7).

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