Vertical lifting strength trainer

Abstract

The utility model discloses a vertical lifting strength training device, it includes vertical weight lifting stand, is equipped with the pivot I in the upper end and the lower part of vertical weight lifting stand, is equipped with the gear in the pivot I end fixed with of vertical weight lifting stand left and right sides, is equipped with the circulating transmission chain between two gears, is distributed articulated with the stop bar for holding the barbell on the chain, the stop bar can be by horizontal direction and rotate 0 up 90 degrees, is equipped with the resistance ware of adjustable sprocket rotating speed on the pivot I of vertical weight lifting stand lower part, is equipped with the fixed stop bar in the lower part of vertical weight lifting stand, the utility model discloses can carry out strength training under the condition of not leaving the stop bar blocking range, improves security.

Description

Technical Field

[0001] This utility model relates to a vertical lifting strength training device, belonging to the field of fitness tools. Background Technology

[0002] Existing standing weightlifting equipment, such as squat racks and power bars, is a core piece of equipment in gyms and home strength training. Its core safety feature lies in its height-adjustable safety bar, designed to catch the barbell in case of exhaustion or loss of control, preventing injury. However, significant safety hazards exist in practical applications: many exercises require the user to completely move the barbell out of the horizontal protection range of the safety bar before performing them, such as overhead presses, push presses, rows, and even certain squat variations. If, in this unprotected state, the user loses control, their form deteriorates, or they are unable to support the weight, the out-of-control barbell will lose the safety bar's support and fall freely or strike the user, easily causing serious muscle and joint injuries or even more serious personal injury accidents.

[0003] Therefore, there is a need for a vertical lifting strength training device that allows strength training to be performed without leaving the stop bar's obstruction range, thus improving safety. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a vertical lifting strength training device that can perform strength training without leaving the range of the stop bar, thereby improving safety; and it can overcome the shortcomings of the prior art.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] This utility model discloses a vertical lifting strength training device, which includes a vertical lifting frame. A rotating shaft I is provided at the upper end and lower middle part of the vertical lifting frame. Gears are fixed at the ends of the rotating shaft I on both sides of the vertical lifting frame. A circulating transmission chain is provided between the upper and lower gears. A stop bar for supporting the barbell is hinged on the chain. The stop bar can rotate horizontally and upwards by 0°-90°. A resistance device for adjusting the rotation speed of the sprocket is provided on the rotating shaft I in the lower middle part of the vertical lifting frame. A fixed stop bar is provided at the lower part of the vertical lifting frame.

[0007] As described above, the chain is composed of multiple chain links, which are connected by a pivot II. The stop bar is hinged to an extension section provided on the pivot II, and a horizontal limiting block with the stop bar fixed on the outside of the chain link is provided.

[0008] The aforementioned resistance device includes a connecting arm at the bottom of a vertical lifting frame, a screw hole on the connecting arm, a screw rod inside the screw hole, and a friction block for increasing resistance by sleeved on the free end of the screw rod to the gear shaft of the rotating shaft I or the gear.

[0009] As mentioned above, a fixing rod is provided on the friction block, and a limiting block is provided on both the fixing rod and the screw, with a compression spring sleeved between the limiting blocks.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. In this invention, during the barbell lifting process, the stop bar is lifted by the rising barbell and rotates upwards. After the barbell passes the stop bar, the stop bar flips downwards, restoring horizontal support. This avoids the stop bar obstructing the upward lifting. When it's time to lower the barbell, as it returns to the stop bar position, the stop bar provides auxiliary support. Under the weight of the barbell, the gears and chain slowly rotate downwards, finally bringing the barbell back to the bottom, making it easier for the exerciser to lift it again. During this process, the rotation speed of the chain wheel can be adjusted using a resistance device. This device facilitates safe weightlifting exercises and is particularly suitable for rehabilitation patients and the elderly.

[0012] 2. The stop lever is hinged to the rotating shaft II, allowing it to rotate along the shaft. The horizontal limit block ensures that the stop lever can rotate horizontally and upwards by 0°-90°. Rotation of the screw pushes the friction block upwards, increasing the friction between the friction block and the rotating shaft I or the gear, thereby adjusting the sprocket rotation speed.

[0013] 3. The screw rotates, pushing the friction block upwards and increasing the friction between the friction block and shaft I or the gear, thereby adjusting the sprocket rotation speed.

[0014] 4. Limiting blocks are provided on both the fixed rod and the screw, and a compression spring is sleeved between the limiting blocks. With this structure, the compression spring can always give the friction block a preload force on the rotating shaft I or the gear.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic diagram of the three-dimensional connection structure of this utility model.

[0018] Figure 2 This is a side view of the present invention.

[0019] Figure 3 This is a front view of the present invention.

[0020] Figure 4 This is a schematic diagram of the three-dimensional connection structure of this utility model.

[0021] Figure 5 for Figure 4 A magnified view of part A in the diagram.

[0022] Figure 6 This is a three-dimensional connection structure diagram of the present invention from another angle.

[0023] Figure 7 for Figure 6 A magnified view of part B in the diagram.

[0024] Figure 8 This is a three-dimensional connection structure diagram of the second embodiment of the present utility model.

[0025] Figure 9 for Figure 8 A magnified view of part C in the middle.

[0026] The components include: 1. Vertical lifting frame; 2. Rotating shaft I; 3. Gear; 4. Chain; 5. Barbell; 6. Stop bar; 7. Resistance device; 8. Chain link; 9. Rotating shaft II; 10. Horizontal limit block; 11. Connecting arm; 12. Screw; 13. Friction block; 14. Fixing rod; 15. Limit block; and 16. Compression spring. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0028] Example 1

[0029] like Figures 1-7As shown, this utility model discloses a vertical lifting strength training device, which includes a vertical lifting frame 1. A rotating shaft I2 is provided at the upper end and lower middle part of the vertical lifting frame 1. Gears 3 are fixed to the ends of the rotating shaft I2 on both sides of the vertical lifting frame 1. A circulating transmission chain 4 is provided between the upper and lower gears 3. Stop bars 6 for supporting the barbell 5 are hinged on the chain 4. The stop bars 6 can rotate horizontally and upwards from 0° to 90°. A resistance device 7 for adjusting the rotation speed of the sprocket is provided on the rotating shaft I2 in the lower middle part of the vertical lifting frame 1. A fixed stop bar 6 is provided at the lower part of the vertical lifting frame 1. With this structure, during the lifting of the barbell 5, the stop bar 6 is lifted by the upward-moving barbell 5 and rotates upward. After the barbell 5 passes the stop bar 6, the stop bar 6 flips downward, restoring horizontal support. This avoids the stop bar 6 obstructing the upward lifting. When it is time to lower the barbell 5, as it returns to the position of the stop bar 6, the stop bar 6 provides auxiliary support. Under the weight of the barbell 5, the gear 3 and chain 4 slowly rotate downward, finally bringing the barbell 5 back to the bottom, making it easier for the exerciser to lift it again. During this process, the rotation speed of the chain wheel can be adjusted using the resistance device 7. This device facilitates safe weightlifting exercises and is particularly suitable for rehabilitation patients and the elderly.

[0030] Furthermore, the chain 4 is composed of multiple chain links 8, which are connected by a pivot 9. The stop bar 6 is hinged to an extension section on the pivot 9. A horizontal limiting block 10 is fixed to the stop bar 6 on the outside of the chain link 8. With this structure, the stop bar 6 is hinged to the pivot 9, allowing it to rotate along the pivot. The horizontal limiting block 10 ensures that the stop bar 6 can rotate 0°-90° horizontally and upwards. Furthermore, the resistance device 7 includes a connecting arm 11 at the lower part of the vertical lifting frame 1. The connecting arm 11 has a screw hole, and a screw 12 is installed in the screw hole. A friction block 13 for increasing resistance to the pivot 12 or the gear shaft of the gear 3 is sleeved at the free end of the screw 12. The screw 12 can rotate relative to the friction block 13. With this structure, the rotation of the screw 12 can push the friction block 13 upwards, increasing the friction between the friction block 13 and the pivot 12 or the gear 3, thereby adjusting the rotation speed of the sprocket.

[0031] Example 2

[0032] like Figures 8-9 As shown, this embodiment is an improvement on embodiment 1. Specifically, a fixing rod 14 is provided on the friction block 13, and the fixing rod 14 is also fixed by the connecting arm 11. Limiting blocks 15 are provided on both the fixing rod 14 and the screw 12, and a compression spring 16 is sleeved between the limiting blocks 15. With this structure, the compression spring 16 can always give the friction block 13 a pre-tightening force on the rotating shaft I2 or the gear 3.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to restrict the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical solution of the present utility model and based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A vertical lifting strength trainer characterized by, It includes a vertical lifting frame (1), with a rotating shaft I (2) at the upper end and lower middle part of the vertical lifting frame (1), gears (3) fixed at the ends of the rotating shaft I (2) on the left and right sides of the vertical lifting frame (1), and a chain (4) for circulating transmission between the upper and lower gears (3). A stop bar (6) for supporting the barbell (5) is distributed and hinged on the chain (4). The stop bar (6) can rotate 0°-90° horizontally and upward. A resistance device (7) for adjusting the rotation speed of the sprocket is provided on the rotating shaft I (2) in the lower middle part of the vertical lifting frame (1), and a fixed stop bar (6) is provided at the lower part of the vertical lifting frame (1).

2. The vertical lift strength trainer of claim 1, wherein, The chain (4) is composed of multiple chain links (8), which are connected by a rotating shaft II (9). The stop bar (6) is hinged to an extension section provided on the rotating shaft II (9), and a horizontal limiting block (10) with the stop bar (6) fixed on the outside of the chain link (8) is provided.

3. The vertical lift strength trainer of claim 1, wherein, The resistance device (7) includes a connecting arm (11) at the bottom of the vertical lifting frame (1), a screw hole on the connecting arm (11), a screw rod (12) in the screw hole, and a friction block (13) for increasing resistance to the rotating shaft I (2) or the gear shaft (3) is sleeved at the free end of the screw rod (12).

4. The vertical lift strength trainer of claim 3, wherein, A fixing rod (14) is provided on the friction block (13), and a limiting block (15) is provided on both the fixing rod (14) and the screw (12). A compression spring (16) is sleeved between the limiting blocks (15).

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