Sit-up trainer

Abstract

The utility model discloses a sit-up training device which comprises a suction cup base and a foot fixing assembly rotationally arranged on the suction cup base, the suction cup base comprises a fixing base and a suction cup, a suction cup rod is formed on the suction cup in an extending mode, and the foot fixing assembly comprises a rotating piece and a foot fixing rod arranged on the rotating piece. The bottom end of the rotating piece is hinged to the suction cup rod and abuts against the upper surface of the fixing base, a control block is arranged on the suction cup rod, a clamping tooth block is arranged on the control block, a rotating tooth groove is formed in the rotating piece and meshed with the clamping tooth block, a pressing piece is arranged on the rotating piece, and the inner end of the pressing piece abuts against the control block. The sit-up training device has the advantages that the pressing piece is pressed to push the control block to move inwards, the clamping tooth block is separated from the rotating tooth groove, at the moment, the rotating part can rotate relative to the fixing seat, and the angle and the position of the foot fixing rod can be changed according to the requirements of a user, so that the user feels more comfortable during exercise.

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 bottom 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. When the user exercises, the foot can only be exercised in one posture. The user cannot adjust the angle and position of the foot fixing rod by himself to make the exercise posture of the foot in a comfortable state during exercise. 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 angle and position of a foot fixing rod according to the needs of the user so that the user can exercise more comfortably.

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

[0006] The support leg of the present invention is a kind of support leg of the present invention, and the support leg is provided with the support leg of the support leg.

[0007] Furthermore, the rotating part includes a left rotating bar and a right rotating bar, a fixing groove is opened on the control block, the suction cup rod is arranged in the fixing groove, a placement groove is opened on the inner side of the left rotating bar, a reset spring is arranged in the placement groove, one end of the control block is arranged in the placement groove and abuts against the reset spring, the engaging tooth block is opened at the other end of the control block, and the rotating tooth groove is arranged on the inner side of the right rotating bar and meshes with the engaging tooth block.

[0008] Furthermore, a pressing groove is provided on the outer side of the right rotating bar, the pressing piece is arranged in the pressing groove, an abutment hole is provided at the bottom of the pressing groove, an abutment piece is extended from the pressing piece, and the abutment piece passes through the abutment hole to abut against the other end of the control block.

[0009] Furthermore, a guide column is provided on the inner side of the right rotating bar, a guide hole is opened on the control block, the guide column is arranged in the guide hole, a hole column is provided on the inner side of the left rotating bar, a column hole penetrating the guide column is also opened at the bottom of the pressing groove, a rotating hole is opened on the suction cup rod, and a rotating shaft is provided in the column hole, the rotating hole and the hole column.

[0010] Furthermore, a connecting column is provided on the inner side of the top of the right rotating bar, a connecting hole is opened on the top of the left rotating bar, and a connecting rod is provided in the connecting hole and the connecting column.

[0011] Furthermore, a handle hole is provided on the fixing seat, a lifting member is provided in the handle hole, tentacles are formed extending from both ends of the lifting member, a limiting groove is provided at the bottom of the fixing seat, and the tentacles are arranged in the limiting groove.

[0012] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0013] A sit-up training device comprises a suction cup base and a foot fixing assembly rotatably arranged on the suction cup base, the suction cup base comprises a fixing seat and a suction cup arranged at the bottom of the fixing seat, a suction cup rod is extended and formed on the suction cup, the foot fixing assembly comprises a rotating member and a foot fixing rod arranged on the rotating member, the bottom end of the rotating member is hinged to the suction cup rod and the bottom end of the rotating member is in contact with the upper surface of the fixing seat, the rotating member is driven to rotate and the suction cup rod moves upward, at which time the suction cup is adsorbed to the ground, a control block which can be moved laterally is provided on the suction cup rod, a clamping tooth block is provided on the control block, and the rotating member The rotating member is provided with a rotating tooth groove, and the rotating tooth groove is meshed with the clamping tooth block, so as to limit the rotating member from rotating relative to the fixed seat. The rotating member is provided with a pressing member, and the inner end of the pressing member abuts against the control block. Pressing the pressing member pushes the control block to move inward, so that the clamping tooth block is disengaged from the rotating tooth groove and the rotating tooth groove is released from the meshing state. At this time, the rotating part can rotate relative to the fixed seat; because the bottom end of the rotating member is hinged to the suction cup rod and the bottom end of the rotating member abuts against the upper surface of the fixed seat, the user first contacts the suction cup at the bottom of the fixed seat with the ground before using the sit-up trainer. The locking member is engaged with the locking cam of the locking member and the locking cam of the locking member, and the locking cam of the locking member is engaged with the locking cam of the locking member, and the locking cam of the locking member is engaged with the locking cam of the locking member, and the locking cam of the locking member is engaged with the locking cam of the locking member. The sit-up trainer will not become loose. When the suction cup is adsorbed to the ground, the user can use the pressing piece to rotate the rotating piece. At this time, the rotating piece will not continue to drive the suction cup rod to move up or down. Compared with the sit-up trainers on the market, most of the foot fixing rods are fixed on the equipment, and the user can only exercise his feet in one posture when exercising. The user of the utility model can press the pressing piece according to his own needs to change the position and angle of the rotating piece relative to the fixed seat, so that the angle and position of the foot fixing rod are changed together, so that the user can keep a comfortable foot exercise posture when exercising. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereogram of the utility model.

[0015] Figure 2 It is a stereogram of the utility model.

[0016] Figure 3 It is a cross-sectional view of the utility model.

[0017] Figure 4It is an exploded view of the rotating part and the suction cup base of the utility model.

[0018] Figure 5 It is an exploded view of the rotating part and the foot fixing rod of the utility model.

[0019] Figure 6 It is an exploded view of the left rotating bar and the right rotating bar of the utility model.

[0020] Figure 7 It is an exploded view of the left rotating bar and the right rotating bar of the utility model.

[0021] Figure 8 It is a three-dimensional diagram of the control block of the utility model.

[0022] Fig. 9 It is an exploded view of the left-hand rotating bar and the return spring of the utility model.

[0023] Fig.10 It is a three-dimensional diagram of a right-hand rotating bar of the utility model.

[0024] Fig.11 It is a structural schematic diagram of the suction cup base of the utility model.

[0025] Fig.12 It is an exploded view of the fixing seat and the suction cup of the utility model.

[0026] Fig.13 It is an exploded view of the fixing seat and the lifting member of the utility model.

[0027] Fig.14 It is a three-dimensional diagram of the fixing seat of the utility model.

[0028] The meaning of the symbols in the figure:

[0029] 1-suction cup base; 3-fixed seat; 4-suction cup; 5-suction cup rod;

[0030] 6-rotating member; 7-foot fixing rod; 8-control block; 9-clamping tooth block; 10-rotating tooth groove;

[0031] 11-pressing piece; 12-left rotating bar; 13-right rotating bar; 14-fixing slot; 15-placing slot;

[0032] 16-reset spring; 17-pressing groove; 18-abutment hole; 19-abutment member; 20-guide column;

[0033] 21-guide hole; 22-hole column; 23-column hole; 24-rotation hole; 25-rotation axis;

[0034] 26-connecting column; 27-connecting hole; 28-connecting rod; 43-handle hole;

[0035] 44 - lifting member; 45 - feeler; 46 - limiting groove. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with specific embodiments:

[0037] A sit-up training device comprises a suction cup base 1 and a foot fixing assembly rotatably arranged on the suction cup base 1, wherein the suction cup base 1 comprises a fixing seat 3 and a suction cup 4 arranged at the bottom of the fixing seat 3, a suction cup rod 5 is extended and formed on the suction cup 4, and the foot fixing assembly comprises a rotating member 6 and a foot fixing rod 7 arranged on the rotating member 6, the bottom end of the rotating member 6 is hinged to the suction cup rod 5 and the bottom end of the rotating member 6 is in contact with the upper surface of the fixing seat 3, the rotating member 6 is driven to rotate and the suction cup rod 5 moves upward, at which time the suction cup 4 is adsorbed to the ground, a control block 8 which can be moved laterally is provided on the suction cup rod 5, and a clamping tooth block 9 is provided on the control block 8, and the rotating member 6 is hinged to the suction cup rod 5 and the bottom end of the rotating member 6 is in contact with the upper surface of the fixing seat 3, and the suction cup rod 5 is driven to rotate and moves upward, at which time the suction cup 4 is adsorbed to the ground, and a control block 8 which can be moved laterally is provided on the suction cup rod 5, and a clamping tooth block 9 is provided on the control block 8. 6 is provided with a rotating tooth groove 10, and the rotating tooth groove 10 is meshed with the engaging tooth block 9, so as to limit the rotation of the rotating member 6 relative to the fixed seat 3. The rotating member 6 is provided with a pressing member 11, and the inner end of the pressing member 11 abuts against the control block 8. Pressing the pressing member 11 pushes the control block 8 to move inward, so that the engaging tooth block 9 is disengaged from the rotating tooth groove 10 and the rotating tooth groove 10 is released from the meshing state. At this time, the rotating part can rotate relative to the fixed seat 3; because the bottom end of the rotating member 6 is hinged to the suction cup rod 5 and the bottom end of the rotating member 6 abuts against the upper surface of the fixed seat 3, the user first contacts the suction cup 4 at the bottom of the fixed seat 3 with the ground before using the sit-up trainer, and then the user can rotate the suction cup 4 at the bottom of the fixed seat 3. A control block 8 is provided on the suction cup rod 5, and the engaging tooth block 9 on the control block 8 is meshed with the rotating tooth groove 10 in the rotating member 6. At this time, the rotating member 6 cannot rotate relative to the fixed seat 3. Since the inner end of the pressing member 11 on the rotating member 6 abuts against the control block 8, the user can push the control block 8 inward by pressing the pressing member 11, so that the engaging tooth block 9 on the control block 8 is disengaged from the rotating tooth groove 10 in the rotating member 6 and the rotating tooth groove 10 is disengaged. At this time, rotating the rotating member 6 will drive the suction cup rod 5 to move upward, so that the concave part of the suction cup 4 is adsorbed together with the ground, and finally the foot fixing rod 7 on the rotating member 6 will rotate together with the rotating member 6, thereby ensuring that the user can use the supine position. When doing sit-up training, the sit-up training device will not get loose. After the suction cup 4 is adsorbed to the ground, the user can use the pressing piece 11 to rotate the rotating piece 6. At this time, the rotating piece 6 will not continue to drive the suction cup rod 5 to move up or down. Compared with the sit-up training devices on the market, most of the foot fixing rods 7 are fixed on the equipment, and the user can only exercise the feet in one posture when exercising. The user of the utility model can press the pressing piece 11 according to his own needs to change the position and angle of the rotating piece 6 relative to the fixing seat 3, so that the angle and position of the foot fixing rod 7 are changed together, so that the user can keep a comfortable posture for the foot when exercising.

[0038] Preferably, the rotating member 6 includes a left rotating bar 12 and a right rotating bar 13, a fixing groove 14 is provided on the control block 8, the suction cup rod 5 is arranged in the fixing groove 14, a placement groove 15 is provided on the inner side of the left rotating bar 12, a return spring 16 is provided in the placement groove 15, one end of the control block 8 is arranged in the placement groove 15 and abuts against the return spring 16, the engaging tooth block 9 is provided at the other end of the control block 8, and the rotating tooth groove 10 is arranged on the inner side of the right rotating bar 13 and meshes with the engaging tooth block 9; the suction cup rod 5 is arranged in the fixing groove 14 on the control block 8, so that when the control block 8 is meshed with the rotating member 6, the rotating member 6 cannot drive the control block 8 to rotate together, so that the sit-up trainer can be used normally, and the user presses the pressing member 11 to push the control block 8 to move inward. The return spring 16 is arranged in the placement groove 15 of the bar 12, and one end of the control block 8 is arranged in the placement groove 15 and abuts against the return spring 16. When the control block 8 moves inward, the return spring 16 in the placement groove 15 will be compressed, and the engaging tooth block 9 at the other end of the control block 8 will be disengaged from the rotating tooth groove 10 of the right rotating bar 13. At this time, the rotating member 6 can be rotated and adjusted. When the rotating member 6 is rotated and adjusted, the user releases the pressing member 11. At this time, the compressed return spring 16 will push the control block 8 to reset, so that the engaging tooth block 9 at the other end of the control block 8 re-enters the rotating tooth groove 10 of the right rotating bar 13. The setting of the return spring 16 enables the control block 8 to automatically re-lock with the rotating member 6 after the rotating member 6 is adjusted, so that the foot fixing rod 7 on the rotating member 6 will not loosen when the user exercises.

[0039] Preferably, a pressing groove 17 is provided on the outer side of the right rotating bar 13, the pressing piece 11 is arranged in the pressing groove 17, an abutting hole 18 is provided at the bottom of the pressing groove 17, an abutting piece 19 is extended and formed on the pressing piece 11, and the abutting piece 19 passes through the abutting hole 18 and abuts against the other end of the control block 8; the abutting piece 19 on the pressing piece 11 passes through the abutting hole 18 and abuts against the other end of the control block 8, so that the pressing piece 11 can better control the control block 8 to move inward.

[0040] Preferably, a guide column 20 is provided on the inner side of the right rotating bar 13, a guide hole 21 is opened on the control block 8, and the guide column 20 is arranged in the guide hole 21; a hole column 22 is provided on the inner side of the left rotating bar 12; a column hole 23 penetrating the guide column 20 is also opened at the bottom of the pressing groove 17; a rotation hole 24 is opened on the suction cup rod 5; a rotation shaft 25 is provided in the column hole 23, the rotation hole 24 and the hole column 22; the right rotating bar 13, the left rotating bar 12 and the suction cup rod 5 are hinged through the column hole 23, the rotation hole 24 and the rotation shaft 25 in the hole column 22, so that the hinge of the right rotating bar 13, the left rotating bar 12 and the suction cup rod 5 is more stable and firm.

[0041] Preferably, a connecting column 26 is also provided on the inner side of the top of the right rotating bar 13, and a connecting hole 27 is opened on the top of the left rotating bar 12, and a connecting rod 28 is provided in the connecting hole 27 and the connecting column 26; the right rotating bar 13 and the left rotating bar 12 are respectively connected together by the connecting column 26 on the top and the connecting rod 28 in the connecting hole 27, so that the connection between the right rotating bar 13 and the left rotating bar 12 is more stable and firm.

[0042] Preferably, a handle hole 43 is provided on the fixing seat 3, a lifting piece 44 is provided in the handle hole 43, tentacles 45 are extended at both ends of the lifting piece 44, a limiting groove 46 is provided at the bottom of the fixing seat 3, and the tentacles 45 are arranged in the limiting groove 46; since the fixing seat 3 and the suction cup 4 are in a fixed connection state on all sides, the user can drive the fixing seat 3 to move upward through the lifting piece 44 after exercising, thereby separating the suction cup 4 from the ground.

[0043] 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 rotatably arranged on the suction cup base (1), Features: The suction cup base (1) comprises a fixing seat (3) and a suction cup (4) arranged at the bottom of the fixing seat (3); a suction cup rod (5) is extended and formed on the suction cup (4); the foot fixing assembly comprises a rotating member (6) and a foot fixing rod (7) arranged on the rotating member (6); the bottom end of the rotating member (6) is hinged to the suction cup rod (5) and the bottom end of the rotating member (6) is in contact with the upper surface of the fixing seat (3); the rotating member (6) is driven to rotate to drive the suction cup rod (5) to move upward, and at this time the suction cup (4) is adsorbed to the ground; a control block (8) which can be moved laterally is provided on the suction cup rod (5); the control block (8) can be moved laterally. The block (8) is provided with a locking tooth block (9), and a rotating tooth groove (10) is provided in the rotating member (6). The rotating tooth groove (10) meshes with the locking tooth block (9), thereby limiting the rotation of the rotating member (6) relative to the fixed seat (3). The rotating member (6) is provided with a pressing member (11), and the inner end of the pressing member (11) abuts against the control block (8). Pressing the pressing member (11) pushes the control block (8) to move inward, so that the locking tooth block (9) is disengaged from the rotating tooth groove (10) and the meshing state with the rotating tooth groove (10) is released. At this time, the rotating part can rotate relative to the fixed seat (3).

2. A sit-up training device according to claim 1, Features: The rotating member (6) comprises a left rotating bar (12) and a right rotating bar (13); a fixing groove (14) is provided on the control block (8); the suction cup rod (5) is arranged in the fixing groove (14); a placement groove (15) is provided on the inner side of the left rotating bar (12); a return spring (16) is arranged in the placement groove (15); one end of the control block (8) is arranged in the placement groove (15) and abuts against the return spring (16); the engaging tooth block (9) is provided at the other end of the control block (8); and the rotating tooth groove (10) is arranged on the inner side of the right rotating bar (13) and meshes with the engaging tooth block (9).

3. A sit-up training device according to claim 2, Features: A pressing groove (17) is provided on the outer side of the right rotating bar (13), the pressing member (11) is arranged in the pressing groove (17), a contact hole (18) is provided at the bottom of the pressing groove (17), an contact member (19) is extended and formed on the pressing member (11), and the contact member (19) passes through the contact hole (18) and contacts the other end of the control block (8).

4. A sit-up training device according to claim 3, Features: A guide column (20) is provided on the inner side of the right rotating bar (13), a guide hole (21) is provided on the control block (8), the guide column (20) is arranged in the guide hole (21), a hole column (22) is provided on the inner side of the left rotating bar (12), a column hole (23) penetrating the guide column (20) is also provided at the bottom of the pressing groove (17), a rotation hole (24) is provided on the suction cup rod (5), and a rotation shaft (25) is provided in the column hole (23), the rotation hole (24) and the hole column (22).

5. A sit-up training device according to claim 4, Features: A connecting column (26) is also provided on the inner side of the top of the right rotating bar (13), a connecting hole (27) is opened on the top of the left rotating bar (12), and a connecting rod (28) is provided in the connecting hole (27) and the connecting column (26).

6. A sit-up training device according to claim 1, Features: The fixing seat (3) is provided with a handle hole (43), a lifting member (44) is provided in the handle hole (43), tentacles (45) are extended from both ends of the lifting member (44), and a limiting groove (46) is provided at the bottom of the fixing seat (3), and the tentacles (45) are arranged in the limiting groove (46).

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