A stable and reliable foldable smith machine

Abstract

The application discloses a stable and reliable foldable Smith training frame, which comprises a pulley provided with a wheel groove, a steel cable for regulating the distribution track through the pulley, a frame body for mounting the pulley, the frame body comprising two main frames with mirror image structures, a plurality of short cross beams which are connected between the main frames and are distributed at intervals from top to bottom, two sub-frames which are hingedly connected with the main frames respectively, and a transverse lever which is hingedly connected between the upper portions of the sub-frames, the steel cable for transition between the main frames and the sub-frames being coaxially distributed with the hinging axes of the main frames and the sub-frames; the bottom of the main frame is connected with a fixed support leg, and the bottom of the sub-frame is connected with a telescopic foot fixing device. The stable and reliable foldable Smith training frame can rotate and fold about the main frame, the transverse lever can be turned and folded by 90 DEG, and the barbell parts can be stacked, so that the space and site required for storage are reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of training frame, and particularly relates to a stable and reliable foldable Smith training frame. BACKGROUND

[0002] The Smith frame is a full-range fitness equipment, the sliding track of the barbell thereof is limited, a trainer can use a large weight at ease, and the Smith frame is not limited to deep squat training, but can also be used for bench press (upper inclined, flat, lower inclined), rowing, biceps curl and heel raising.

[0003] There are many types of Smith frames, such as vertical type (most), inclined type, weight-assisted type, weightless type, single plane type, three-dimensional frame type (Max machine), zero friction type and high friction resistance type.

[0004] The existing Smith training frame is a full-range fitness equipment, which is bulky and inconvenient to fold and store, and occupies a large space. SUMMARY

[0005] In view of the problems in the above background art, the present application aims to provide a stable and reliable foldable Smith training frame.

[0006] To achieve the above technical purpose, the technical scheme adopted by the present application is as follows:

[0007] A stable and reliable foldable Smith training frame comprises a pulley provided with a wheel groove, a steel cable for regulating the distribution track through the pulley, and a frame body for mounting the pulley, wherein the frame body comprises two main frames in mirror image structure, a plurality of short cross beams spaced apart from top to bottom and connected between the main frames, two sub-frames each hingedly connected with the main frame, and a transverse lever hingedly connected between the upper parts of the sub-frames, and the steel cable for transition between the main frame and the sub-frame is coaxially distributed with the hinge axis of the main frame and the sub-frame.

[0008] The bottom of the main frame is connected with a fixed support leg, and the bottom of the sub-frame is connected with a telescopic footrest fixer.

[0009] The main frame comprises a long upright column, a short upright column, a bottom cross bar, a top cross bar, a sub-bar and a first U-shaped hinged frame, the bottom cross bar is located between the bottom of the long upright column and the short upright column, the top cross bar is located above the short upright column and beside the long upright column, the sub-bar is located between the upper parts of the long upright column and the short upright column, the first U-shaped hinged frame is located at the end of the top cross bar and the bottom outside of the short upright column respectively, the first U-shaped hinged frame is provided with a hinge hole, and the plane positions of the two first U-shaped hinged frames overlap with each other.

[0010] The auxiliary frame comprises an upper swing rod, a lower swing rod, a vertical square tube and a round tube connected between the upper swing rod and the lower swing rod, the end of the upper swing rod and the lower swing rod is provided with a first hinge sleeve matched with the first V-shaped hinge frame, the side of the upper swing rod and the lower swing rod is provided with a pipe seat for inserting the round tube, the inner side of the upper swing rod is provided with an axis horizontal second hinge sleeve, the round tube is sleeved with an upper outer cylinder and a lower outer cylinder, the vertical square tube is sleeved with a slidable support, the lower outer cylinder is fixedly connected with the slidable support, the upper outer cylinder is provided with a placing hook, the placing hook is provided with a lock hole, the placing hook is provided with a barbell rod sleeve, the barbell rod sleeve is provided with a middle rod and an edge rod at both ends of the middle rod, the bottom of the edge rod is provided with a lock frame, the lock frame and the placing hook are penetrated by a lock pin, the other end of the edge rod is connected with an arc hook, the slidable support is provided with a rotatable hook matched with the arc hook.

[0011] The two side ends of the transverse lever are provided with a second V-shaped hinge frame, the second V-shaped hinge frame is also provided with a hinge hole, the first V-shaped hinge frame and the first hinge sleeve are hingedly connected through a center shaft with a limit at both ends, and the second V-shaped hinge frame and the second hinge sleeve are also hingedly connected through a center shaft with a limit at both ends.

[0012] It is further limited that the pulley comprises a fixed pulley and a movable pulley, and such a structure design can change the force direction of the steel cable and lifting through the fixed pulley and the movable pulley respectively.

[0013] It is further limited that the inner cavity of the main frame is distributed with a steel cable and a movable pulley, the bottom of the movable pulley is connected with a plurality of counterweights through a transition structure, and one end of the steel cable matched with the counterweight is buckled and connected with the upper outer cylinder, and such a structure design can increase the load at the end of the steel cable through the counterweight, complete the lifting of the counterweight by the steel cable through the movable pulley, and directly connect the load of the counterweight after the steel cable connected with the counterweight is buckled and connected with the upper outer cylinder and the barbell rod sleeve is locked in the upper outer cylinder, so that the Olympic weight plate is not needed to be additionally hung, and the use is more convenient.

[0014] It is further limited that the outer side of the main frame is connected with a protective shell, the protective shell is a spliced structure, and the protective shell comprises an inner shell, an outer shell and a top shell connecting the inner shell and the outer shell, and the middle and lower part of the inner shell is provided with a replacement window, and such a structure design can isolate the upper and lower moving counterweights through the protective shell, avoid accidental injury of the counterweight to the personnel during training, and complete the replacement of the counterweight and the change of the load size through the replacement window.

[0015] It is further limited that the power input end of the steel cable is connected with a horizontal leg training device, and such a structure design can connect the steel cable through the horizontal leg training device to provide the input end structure of the training.

[0016] Further limit, the long column, short column, bottom crossbar, top crossbar, vice rod, upper swing rod, lower swing rod, vertical square tube are made of hollow square steel, which makes the structure more lightweight.

[0017] Further limit, the outer side of the horizontal lever is provided with a pull-up support, which enriches the content of training projects.

[0018] Further limit, the vertical square tube is provided with a row of threaded holes along the length direction, and the slidable support is positioned and locked with the vertical square tube through the cooperation of the bolt and the threaded hole, which makes the slidable support be able to complete positioning and locking through the cooperation of the bolt and the threaded hole.

[0019] The beneficial effects of the present application are:

[0020] 1. The vice frame can be rotated and folded about the main frame, thereby reducing the required space for storage;

[0021] 2. The horizontal lever can be folded by 90°, which also reduces the required space for storage;

[0022] 3. The telescopic foot fixing device and the fixed foot are arranged, the fixed foot is used to bear the main frame, and the telescopic foot fixing device is used to provide bearing by contacting the ground downward when the vice frame needs to be stationary, and is reset upward when the vice frame needs to be rotated, so that enough space is left between the bottom of the vice frame and the ground to prevent the vice frame from being interfered during rotation;

[0023] 4. The barbell sleeve is arranged to place the disassembled barbell, which saves the storage space, and the end of the steel cable matched with the weight block is connected with the upper outer cylinder through buckling, so that the barbell sleeve can be directly connected to the load of the weight block for training without additional connection of Olympic weight pieces, which is more convenient to use;

[0024] 5. The steel cable and the hinge axis of the main frame and the vice frame are coaxially distributed, so that the steel cable does not jump out of the groove of the pulley when the vice frame is rotated and folded about the main frame, and the folding action can be stably performed. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present application can be further illustrated by the non-limiting embodiments shown in the accompanying drawings;

[0026] Figure 1 It is a shaft side structure diagram of a stable and reliable foldable Smith training rack embodiment of the present application;

[0027] Figure 2 It is a side view structure diagram of a stable and reliable foldable Smith training rack embodiment of the present application; It is a side view structure diagram of a stable and reliable foldable Smith training rack embodiment of the present application;

[0028] Figure 3 Structure diagram of the stable and reliable foldable Smith training frame embodiment in cooperation with the horizontal leg training device;

[0029] Figure 4 Structure diagram of the main frame of the stable and reliable foldable Smith training frame embodiment;

[0030] Figure 5 Structure diagram of the upper swing rod of the stable and reliable foldable Smith training frame embodiment;

[0031] Figure 6 Enlarged view of A of the stable and reliable foldable Smith training frame embodiment;

[0032] Figure 7 Enlarged view of B of the stable and reliable foldable Smith training frame embodiment;

[0033] The main element symbols are explained as follows:

[0034] Main frame 1, long upright column 101, short upright column 102, bottom horizontal rod 103, first U-shaped hinged frame 104, top horizontal rod 105, auxiliary rod 106;

[0035] Auxiliary frame 2, upper swing rod 21, first hinged sleeve 211, second hinged sleeve 213, pipe base 214, vertical square tube 22, circular tube 23, upper outer cylinder 231, placing hook 232, lower outer cylinder 233, lower swing rod 24;

[0036] Short horizontal beam 3;

[0037] Telescopic foot pedal fixer 41, fixed support 42;

[0038] Transverse lever 5, second U-shaped hinged frame 51;

[0039] Barbell rod sleeve 6, middle rod 61, side rod 62, lock frame 63, lock pin 64, arc hook 65;

[0040] Slidable support 7, hook 71;

[0041] Protective shell 8;

[0042] Pulley 9;

[0043] Steel cable 10;

[0044] Horizontal leg training device 11. DETAILED DESCRIPTION

[0045] In order for those skilled in the art to better understand the present application, the technical solutions of the present application are further described below in combination with the drawings and examples.

[0046] As Figures 1-7 shown, the stable and reliable foldable Smith training rack of the present application comprises a pulley 9 provided with a wheel groove, a steel cable 10 for regulating the distribution trajectory through the pulley 9, a rack body for mounting the pulley 9, the rack body comprising two main racks 1 in mirror image structure, a plurality of short cross beams 3 connected between the main racks 1 and distributed at intervals from top to bottom, two sub-racks 2 respectively hinged with the main racks 1, and a transverse lever 5 hinged between the upper parts of the sub-racks 2, the steel cable 10 for transition between the main racks 1 and the sub-racks 2 being coaxially distributed with the hinge axes of the main racks 1 and the sub-racks 2;

[0047] The bottom of the main rack 1 is connected with a fixed foot 42, and the bottom of the sub-rack 2 is connected with a telescopic footrest fixer 41;

[0048] The main rack 1 comprises a long upright column 101, a short upright column 102, a bottom cross beam 103, a top cross beam 105, a sub-rod 106, and a first U-shaped hinged rack 104, the bottom cross beam 103 is located between the bottom of the long upright column 101 and the short upright column 102, the top cross beam 105 is located above the short upright column 102 and beside the long upright column 101, the sub-rod 106 is located between the upper parts of the long upright column 101 and the short upright column 102, and the first U-shaped hinged rack 104 is respectively located at the end of the top cross beam 105 and the bottom outside of the short upright column 102, the first U-shaped hinged rack 104 is provided with a hinge hole, and the plane positions of the two first U-shaped hinged racks 104 overlap with each other;

[0049] The sub-rack 2 comprises an upper swing rod 21, a lower swing rod 24, a vertical square tube 22 and a circular tube 23 connected between the upper swing rod 21 and the lower swing rod 24, the end of the upper swing rod 21 and the lower swing rod 24 is provided with a first hinged sleeve 211 matched with the first U-shaped hinged rack 104, the side of the upper swing rod 21 and the lower swing rod 24 is provided with a pipe seat 214 for inserting the circular tube 23, the inner side of the upper swing rod 21 is provided with a second hinged sleeve 213 with horizontal axis, the circular tube 23 is sleeved with an upper outer cylinder 231 and a lower outer cylinder 233, the vertical square tube 22 is sleeved with a slidable support 7, the lower outer cylinder 233 is fixedly connected with the slidable support 7, the upper outer cylinder 231 is provided with a placing hook 232, the placing hook 232 is provided with a lock hole, the placing hook 232 receives a barbell rod sleeve 6, the barbell rod sleeve 6 is provided with a middle rod 61 and edge rods 62 located at both ends of the middle rod 61, the bottom of the edge rod 62 is provided with a lock frame 63, the lock frame 63 and the placing hook 232 are penetrated by a lock pin 64, the other end of the edge rod 62 is connected with an arc hook 65, the slidable support 7 is provided with a rotatable hook 71 matched with the arc hook 65;

[0050] The two side ends of the transverse lever 5 are provided with second U-shaped hinged frames 51, which are also provided with hinged holes, and the first U-shaped hinged frame 104 and the first hinged sleeve 211 are hinged through a center shaft with limited ends, and the second U-shaped hinged frame 51 and the second hinged sleeve 213 are also hinged through a center shaft with limited ends.

[0051] In the implementation of the present application, the stable and reliable foldable Smith training rack has the following improvements and advantages: 1. The sub-frame can be folded and rotated about the main frame 1, thereby reducing the required space for storage; 2. The transverse lever 5 can be folded and rotated by 90°, also reducing the required space for storage; 3. The telescopic foot pedal fixer 41 and the fixed support foot 42 are provided, the fixed support foot 42 is used to bear the main frame 1, and the telescopic foot pedal fixer 41 is used to provide bearing by extending downward to contact the ground when the sub-frame 2 needs to be fixed, and is reset upward when the sub-frame 2 needs to be rotated, so as to leave enough space between the bottom of the sub-frame 2 and the ground to prevent the telescopic foot pedal fixer 41 from interfering with the rotation of the sub-frame 2; 4. The barbell sleeve 6 is provided to place the disassembled barbells, saving storage space; 5. The steel cable 10 is coaxially distributed with the hinge axes of the main frame 1 and the sub-frame 2, avoiding the jumping of the steel cable 10 from the groove of the pulley 9 when the sub-frame is folded and rotated about the main frame 1, so that the folding action can be stably performed;

[0052] The specific process is as follows:

[0053] When folding, first, only one center shaft between the transverse lever 5 and the sub-frame 2 is removed, and the second U-shaped hinged frame 51 and the second hinged sleeve 213 can move, at this time, the transverse lever 5 can be folded and rotated by 90°, the barbell sleeve 6 is removed from the placement hook 232, the two telescopic foot pedal fixers 41 are retracted, and there is no fixed structure between the two sub-frames 2, which can freely rotate around the hinge point, the sub-frame 2 rotates about the axis of the first U-shaped hinged frame 104 and the first hinged sleeve 211, and rotates, during the rotation, the steel cable 10 is located on the rotation axis, and its position does not change, so the rotation of the sub-frame 2 does not cause the steel cable 10 to jump out of the groove, ensuring that the folding is stably performed;

[0054] After stacking the barbells, in order to lock the posture of the barbell rod sleeve 6, avoid locking the barbell rod sleeve 6 from falling off and causing safety accidents, the locking pin 64 passes through the locking frame 63, the hook 232 is placed, and the barbell rod sleeve 6 is locked. At this time, the barbell rod sleeve 6 cannot be rotated, but the barbell rod sleeve 6 is connected together with the upper outer cylinder 231 through the locking pin 64, the locking frame 63, the hook 232 and the upper outer cylinder 231, and can also slide up and down along the circular pipe 23. Therefore, the other end of the side rod 62 is connected with the arc hook 65, the slidable support 7 is provided with a rotatable hook 71, and after the hook 71 is hooked with the arc hook 65, the locking barbell rod sleeve 6 is further locked, so that the barbell rod sleeve 6 cannot move up and down, and is completely positioned and locked. The height position of the slidable support 7 on the vertical square tube 22 can change the height position of the lower outer cylinder 233, and the lower outer cylinder 233 directly receives the upper outer cylinder 231 and the barbell rod sleeve 6, so that the placement height of the barbell rod sleeve 6 can be changed. According to actual needs, it can be adjusted by itself, and the degree of freedom is high.

[0055] Since the end of the top cross rod 105 is connected with the first V-shaped hinged frame 104, the position of the first V-shaped hinged frame 104 is determined, and the position of the first V-shaped hinged frame 104 determines the position of the hinged axis. In order to avoid errors in the position of the hinged axis of the two main frames 1, the position of the top cross rod 105 is positioned by the following structure:

[0056] The bottom cross rod 103 is located between the bottom of the long column 101 and the short column 102, the top cross rod 105 is located above the short column 102 and beside the long column 101, and the sub-rod 106 is located between the upper parts of the long column 101 and the short column 102. The distance between the long column 101 and the short column 102 is ensured by the bottom cross rod 103 and the sub-rod 106, the height of the top cross rod 105 is positioned by the short column 102, and the end position of the top cross rod 105 is positioned by the long column 101, so that the top cross rod 105 is positioned in the vertical and longitudinal directions, and the position of the top cross rod 105 is ensured.

[0057] Preferably, the pulley 9 includes a fixed pulley and a movable pulley. Such a structure design can change the stress direction of the steel cable 10 and lifting through the fixed pulley and the movable pulley respectively. In fact, other types of pulleys 9 can also be considered according to specific circumstances.

[0058] Preferably, the inner cavity of the main frame 1 is distributed with the steel cable 10, the movable pulley, the bottom of the movable pulley is connected with a plurality of counterweights through the transition structure, and one end of the steel cable 10 matched with the counterweight is buckled and connected with the upper outer cylinder 231. Through the counterweight, the load at the end of the steel cable 10 is increased, the lifting of the steel cable 10 to the counterweight is completed through the movable pulley, after the steel cable connected with the counterweight is buckled and connected with the upper outer cylinder, the barbell sleeve 6 is locked in the upper outer cylinder 231, and the load of the counterweight can be directly connected without additional connection of Olympic weight plates, which is more convenient to use. In fact, other structures for providing load can also be considered according to specific conditions.

[0059] Preferably, the outer side of the main frame 1 is connected with the protective shell 8, the protective shell 8 is a spliced structure, the protective shell 8 includes an inner shell, an outer shell, and a top shell connecting the inner shell and the outer shell, and the middle and lower part of the inner shell is provided with a replacement window. Through the protective shell 8, the counterweight moving up and down is isolated, and the counterweight is replaced and the load size is changed through the replacement window, so as to avoid accidental injury of the counterweight to the personnel during training. In fact, other structures for protection can also be considered according to specific conditions.

[0060] Preferably, the power input end of the steel cable 10 is connected with the horizontal leg training device 11. Through the horizontal leg training device 11 connected with the steel cable 10, the input end structure of the training is provided. In fact, other structures of the input end can also be considered according to specific conditions.

[0061] Preferably, the long column 101, the short column 102, the bottom cross bar 103, the top cross bar 105, the auxiliary rod 106, the upper swing rod 21, the lower swing rod 24, and the vertical square tube 22 are all made of hollow square steel. Such a structure design makes the structure more lightweight. In fact, other structures for improving lightweight can also be considered according to specific conditions.

[0062] Preferably, the outer side of the horizontal lever 5 is provided with a chin-up support. Such a structure design enriches the content of the training project. In fact, other structures for enriching the training project can also be considered according to specific conditions.

[0063] Preferably, the vertical square tube 22 is provided with a row of threaded holes along the length direction, and the slidable support 7 is positioned and locked with the vertical square tube 22 through the cooperation of the bolt and the threaded hole. Such a structure design enables the slidable support 7 to complete positioning and locking through the cooperation of the bolt and the threaded hole. In fact, other structures for positioning and locking the slidable support 7 can also be considered according to specific conditions.

[0064] The above embodiments merely illustrate the principles of the present application and its efficacy, and are not intended to limit the present application. Any modification or change made by those skilled in the art without departing from the spirit and scope of the present application shall be covered by the claims of the present application.

Claims

1. A stable and reliable foldable Smith training frame, comprising pulleys (9) with grooves, steel cables (10) with a regulated distribution path via the pulleys (9), and a frame for mounting the pulleys (9), characterized in that: The frame includes two mirror-shaped main frames (1), several short crossbeams (3) connected between the main frames (1) and spaced apart from top to bottom, two sub-frames (2) respectively hinged to the main frames (1), and transverse levers (5) hinged between the upper parts of the sub-frames (2). The steel cable (10) used for transition between the main frames (1) and the sub-frames (2) is coaxial with the hinge axis of the main frames (1) and the sub-frames (2). The bottom of the main frame (1) is connected to a fixed support leg (42), and the bottom of the sub-frame (2) is connected to a telescopic foot pedal fixer (41). The main frame (1) includes a long column (101), a short column (102), a bottom crossbar (103), a top crossbar (105), a secondary rod (106), and a first U-shaped hinge frame (104). The bottom crossbar (103) is located between the bottom of the long column (101) and the short column (102). The top crossbar (105) is located above the short column (102) and to the side of the long column (101). The secondary rod (106) is located between the upper parts of the long column (101) and the short column (102). The first U-shaped hinge frame (104) is located at the end of the top crossbar (105) and on the outer side of the bottom of the short column (102). The first U-shaped hinge frame (104) is provided with hinge holes. The planar positions of the two first U-shaped hinge frames (104) overlap each other. The subframe (2) includes an upper swing rod (21), a lower swing rod (24), a vertical square tube (22) connecting the upper swing rod (21) and the lower swing rod (24), and a round tube (23). The ends of the upper swing rod (21) and the lower swing rod (24) are provided with a first hinge sleeve (211) that mates with the first U-shaped hinge frame (104). The sides of the upper swing rod (21) and the lower swing rod (24) are provided with tube seats (214) for inserting the round tube (23). The inner side of the upper swing rod (21) is provided with a second hinge sleeve (213) with a horizontal axis. The round tube (23) is fitted with an upper outer cylinder (231) and a lower outer cylinder (233). The vertical square tube (22) is fitted with a sliding... The movable support (7) is fixedly connected to the lower outer cylinder (233). The upper outer cylinder (231) is provided with a placement hook (232). The placement hook (232) is provided with a locking hole. The placement hook (232) supports a barbell sleeve (6). The barbell sleeve (6) is provided with a middle rod (61) and side rods (62) located at both ends of the middle rod (61). The bottom of the side rod (62) is provided with a locking frame (63). The locking frame (63) and the placement hook (232) are passed through by a locking pin (64). The other end of the side rod (62) is connected to an arc hook (65). The movable support (7) is provided with a rotatable hook (71). The hook (71) matches the arc hook (65). The two ends of the transverse lever (5) are provided with a second U-shaped hinge frame (51). The second U-shaped hinge frame (51) is also provided with a hinge hole. The first U-shaped hinge frame (104) and the first hinge sleeve (211) are hinged together by a central shaft with limits at both ends. The second U-shaped hinge frame (51) and the second hinge sleeve (213) are also hinged together by a central shaft with limits at both ends.

2. The stable and reliable foldable Smith training rack according to claim 1, characterized in that: The pulley (9) includes a fixed pulley and a movable pulley.

3. The stable and reliable foldable Smith training rack according to claim 2, characterized in that: The inner cavity of the main frame (1) is provided with steel cables (10) and movable pulleys. The bottom of the movable pulleys is connected to several counterweights through a transition structure. One end of the steel cable (10) that cooperates with the counterweights is fastened to the upper outer cylinder (231) through a buckle.

4. The stable and reliable foldable Smith training rack according to claim 3, characterized in that: The outer side of the main frame (1) is connected to a protective shell (8). The protective shell (8) is a spliced ​​structure. The protective shell (8) includes an inner shell, an outer shell, and a top shell connecting the inner shell and the outer shell. The lower middle part of the inner shell is provided with a replacement window.

5. The stable and reliable foldable Smith training rack according to claim 4, characterized in that: The power input end of the steel cable (10) is connected to a horizontal leg trainer (11).

6. The stable and reliable foldable Smith training rack according to claim 5, characterized in that: The long column (101), short column (102), bottom horizontal bar (103), top horizontal bar (105), auxiliary bar (106), upper swing bar (21), lower swing bar (24), and vertical square tube (22) are all made of hollow square steel.

7. The stable and reliable foldable Smith training rack according to claim 6, characterized in that: The outer side of the transverse lever (5) is provided with a pull-up bracket.

8. The stable and reliable foldable Smith training rack according to claim 7, characterized in that: The vertical square tube (22) has a row of threaded holes along its length, and the sliding support (7) is positioned and locked with the vertical square tube (22) by the cooperation of bolts and threaded holes.

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