Back muscle pull-up trainer convenient to adjust

Abstract

The utility model discloses a dorsal muscle pull-up trainer convenient to adjust, and relates to the field of training equipment. The cross bar comprises a base, a mounting box and a stand column are arranged at the top of the base, a two-way screw rod is mounted in the mounting box, a two-way screw rod is arranged on the outer surface of the two-way screw rod, and a threaded block is arranged on the outer surface of the two-way screw rod. A user can shake a rocking wheel, after the rocking wheel rotates, a two-way lead screw can be made to rotate under the cooperation of a driving bevel gear, a transmission bevel gear and a driven bevel gear, the two-way lead screw rotates to make threaded blocks move oppositely, then a connecting rod supports a movable plate, the distance between the movable plate and a transverse rod is shortened, the purpose of adjustment is achieved, and the adjusting mechanism is located at a relatively low position; the device is very friendly to both short users and tall users, and is very convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the field of training equipment, in particular to a back muscle pull-up training device which is easy to adjust. Background Art

[0002] The back muscle pull-up trainer, as the name suggests, can train the back muscles to a certain extent by training pull-ups, and the horizontal bar can be used in many trainings and has a wide range of uses.

[0003] The prior art discloses a back muscle pull-up trainer with a stable structure with application number CN202321096945.9, comprising a bottom bar, the upper end of the bottom bar is slidably connected to a support rod, the upper end of the bottom bar is provided with a slot, the front and rear sides of the support rod are provided with a first through hole, the outer surface of the support rod is sleeved with an adjustment component, the adjustment component and the first through hole are mutually plugged, and the opposite sides of the adjustment component are fixedly connected with a round rod. The utility model adopts the above structure, so that the round rod can be fixed only after the first limiting rod is sleeved, and the sleeve and the support rod are both set to be square, so that there is a certain limiting effect between the square sleeve and the support rod, so that shaking will not occur, so that after the horizontal bar is adjusted, the existing inability to adjust the height according to the height is avoided. For people who are too tall or too short, a horizontal bar of another height needs to be built to train pull-ups normally.

[0004] Although the trainer can achieve the function of adjusting the height, when operating it, it is more convenient for a taller user to adjust from low to high, while it is not convenient for a shorter user to adjust from high to low. Therefore, the trainer is not friendly to shorter users and is not very practical. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a back muscle pull-up trainer that is easy to adjust to solve the technical problems in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a back muscle pull-up trainer that is easy to adjust, comprising a base and a rotating shaft installed on the outer surface of the base, a mounting box and a column are provided on the top of the base, a bidirectional screw rod is installed inside the mounting box, a bidirectional screw rod is provided on the outer surface of the bidirectional screw rod, a threaded block is provided on the outer surface of the bidirectional screw rod, a movable plate is connected to the top of the threaded block by a connecting rod, and a transmission shaft is installed on the inner side of the base.

[0007] Furthermore, the top of the movable plate is connected to a buffer plate via a spring, and a buffer pad is provided on the top of the buffer plate, and the buffer pad is made of rubber material.

[0008] By adopting the above technical solution, the rubber cushion can initially cushion the impact force, so that the user will not experience foot numbness when jumping down.

[0009] Furthermore, spring plates are fixed to the top of the movable plate and the bottom of the buffer plate via bolts.

[0010] By adopting the above technical solution, the impact force can be further buffered under the action of the spring and the spring plate, which can protect the user's feet and the adjustment component to avoid damage to the bidirectional screw rod due to excessive impact force.

[0011] Furthermore, the upright posts are provided in two groups, a cross bar is fixed between the two groups of upright posts, and a silicone sleeve is provided on the outer surface of the cross bar.

[0012] By adopting the above technical solution, the user can do pull-ups conveniently through the horizontal bar, thereby achieving the effect of exercising the back muscles. Secondly, the silicone sleeve can increase the friction of the user's palm and improve the comfort of the palm.

[0013] Furthermore, a driven bevel gear is fixed to the end of the bidirectional screw rod, a transmission bevel gear is fixed to both ends of the transmission shaft, a driving bevel gear is fixed to one end of the rotating shaft, and the driving bevel gear is meshed with the transmission bevel gear, and the transmission bevel gear is meshed with the driven bevel gear.

[0014] By adopting the above technical solution, the rotation of the rotating shaft causes the active bevel gear to rotate, and the rotation of the active bevel gear causes the transmission bevel gear and the transmission shaft to rotate, thereby causing the driven bevel gear to drive the bidirectional screw to rotate.

[0015] Furthermore, a rocking wheel is fixed to the other end of the rotating shaft.

[0016] By adopting the above technical solution, the user can permanently fix the rocking wheel to make the rotation of the rotating shaft more convenient.

[0017] Furthermore, the buffer plate and the movable plate are both slidably matched with the column.

[0018] By adopting the above technical solution, the upright column has a stabilizing effect on the buffer plate, thereby preventing the buffer plate and the movable plate from swinging.

[0019] Furthermore, the springs and spring plates are provided in multiple groups, and the multiple groups of spring plates and springs are all made of manganese steel material.

[0020] By adopting the above technical solution, the manganese steel material makes the spring and the spring plate more elastic, has a longer service life, and improves the buffering effect.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] 1. The utility model is provided with a bidirectional screw rod, a threaded block, a movable plate, a connecting rod and a threaded block. If the user cannot reach the cross bar, the user can shake the crank. After the crank wheel rotates, the bidirectional screw rod will rotate with the cooperation of the active bevel gear, the transmission bevel gear and the driven bevel gear. The rotation of the bidirectional screw rod causes the threaded blocks to move toward each other, and then the connecting rod props up the movable plate, thereby shortening the distance with the cross bar and achieving the purpose of adjustment. The adjustment mechanism is at a relatively low position, which is very friendly to both shorter users and taller users, and the adjustment is very convenient.

[0023] 2. The utility model is provided with a spring, a spring plate, a buffer plate and a buffer pad, which can buffer the impact force when the user releases the cross bar and jumps down, thereby avoiding injuries to the user's feet or discomfort, and can also protect the adjustment mechanism to avoid damage to the adjustment parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the top view of the installation box of the utility model;

[0026] Figure 3 This is a schematic diagram of the bidirectional screw rod structure when viewed from above;

[0027] Figure 4 It is a schematic diagram of the spring plate structure of the utility model.

[0028] In the figure: 1. base; 2. mounting box; 3. column; 4. cross bar; 5. movable plate; 6. buffer plate; 7. buffer pad; 8. spring plate; 9. spring; 10. bidirectional screw; 11. transmission shaft; 12. rotating shaft; 13. transmission bevel gear; 14. active bevel gear; 15. driven bevel gear; 16. threaded block; 17. connecting rod; 18. rocker. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0030] The following describes an embodiment of the utility model based on its overall structure.

[0031] Embodiment 1: A back muscle pull-up training device that is easy to adjust, such as Figure 1-Figure 3As shown, it includes a base 1 and a rotating shaft 12 installed on the outer surface of the base 1. The top of the base 1 is provided with a mounting box 2 and a column 3. The column 3 is provided with two groups. A cross bar 4 is fixed between the two groups of columns 3. The outer surface of the cross bar 4 is provided with a silicone sleeve. The user can do pull-ups through the cross bar 4 to achieve the effect of exercising the back muscles. Secondly, the silicone sleeve can increase the friction of the user's palm and improve the comfort of the palm. A bidirectional screw rod 10 is installed inside the mounting box 2. The outer surface of the bidirectional screw rod 10 is provided with a bidirectional screw rod 10. The outer surface of the bidirectional screw rod 10 is provided with a thread block 16. The thread block The top of 16 is connected to the movable plate 5 through the connecting rod 17, the inner side of the base 1 is installed with a transmission shaft 11, the end of the bidirectional screw 10 is fixed with a driven bevel gear 15, the two ends of the transmission shaft 11 are fixed with a transmission bevel gear 13, one end of the rotating shaft 12 is fixed with an active bevel gear 14, and the active bevel gear 14 is meshed with the transmission bevel gear 13, and the transmission bevel gear 13 is meshed with the driven bevel gear 15. The rotation of the rotating shaft 12 causes the active bevel gear 14 to rotate, and the rotation of the active bevel gear 14 causes the transmission bevel gear 13 and the transmission shaft 11 to rotate, thereby causing the driven bevel gear 15 to drive the bidirectional screw 10 to rotate.

[0032] See also Figure 1-Figure 3 A rocking wheel 18 is fixed to the other end of the rotating shaft 12, and the user can permanently fix the rocking wheel 18 to make it more convenient for the rotating shaft 12 to rotate.

[0033] Example 2: See Figure 4 The top of the movable plate 5 is connected to a buffer plate 6 through a spring 9, and a buffer pad 7 is provided on the top of the buffer plate 6. The buffer pad 7 is made of rubber material. The top of the movable plate 5 and the bottom of the buffer plate 6 are fixed with a spring plate 8 by bolts. The rubber buffer pad 7 can initially buffer the impact force, so that the user will not experience numbness in the feet when jumping down. Under the action of the spring 9 and the spring plate 8, the impact force can be further buffered, which can protect the user's feet and protect the adjustment component to avoid damage to the two-way screw rod 10 due to excessive impact force.

[0034] See also Figure 4 There are multiple groups of springs 9 and spring plates 8, and the multiple groups of spring plates 8 and springs 9 are made of manganese steel material. The manganese steel material makes the springs 9 and spring plates 8 more elastic, has a longer service life, and improves the buffering effect.

[0035] Example 3: See Figure 1-Figure 2 The buffer plate 6 and the movable plate 5 are both slidably matched with the column 3, and the column 3 has a stabilizing effect on the buffer plate 6 to prevent the buffer plate 6 and the movable plate 5 from swinging.

[0036] The implementation principle of the utility model is as follows: when in use, the staff first installs the training device. If the user cannot reach the cross bar 4, the user can shake the crank 18. After the crank 18 rotates, the two-way screw 10 will rotate under the cooperation of the active bevel gear 14, the transmission bevel gear 13 and the driven bevel gear 15. The rotation of the two-way screw 10 causes the threaded blocks 16 to move toward each other, thereby causing the connecting rod 17 to prop up the movable plate 5, thereby shortening the distance from the cross bar 4 and achieving the purpose of adjustment. The user can stand on the buffer plate 6 and then hold the cross bar 4 to do pull-ups. When the user releases the cross bar 4 and jumps down, the impact force can be buffered, which can avoid the user's foot injuries or discomfort, and can also protect the adjustment mechanism to avoid damage to the adjustment parts.

[0037] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A back muscle pull-up training device that is easy to adjust, comprising a base (1) and a rotating shaft (12) mounted on the outer surface of the base (1), characterized in that: The top of the base (1) is provided with a mounting box (2) and a column (3); a bidirectional screw rod (10) is installed inside the mounting box (2); a bidirectional screw rod (10) is provided on the outer surface of the bidirectional screw rod (10); a threaded block (16) is provided on the outer surface of the bidirectional screw rod (10); the top of the threaded block (16) is connected to a movable plate (5) via a connecting rod (17); and a transmission shaft (11) is installed on the inner side of the base (1).

2. The easily adjustable back muscle pull-up training device according to claim 1, characterized in that: The top of the movable plate (5) is connected to a buffer plate (6) via a spring (9), and a buffer pad (7) is provided on the top of the buffer plate (6), and the buffer pad (7) is made of rubber material.

3. The easily adjustable back muscle pull-up training device according to claim 2, characterized in that: The top of the movable plate (5) and the bottom of the buffer plate (6) are both fixed with spring plates (8) via bolts.

4. The easily adjustable back muscle pull-up training device according to claim 1, characterized in that: The upright posts (3) are provided in two groups, a cross bar (4) is fixed between the two groups of upright posts (3), and a silicone sleeve is provided on the outer surface of the cross bar (4).

5. The easily adjustable back muscle pull-up training device according to claim 1, characterized in that: A driven bevel gear (15) is fixed at the end of the bidirectional screw rod (10), a transmission bevel gear (13) is fixed at both ends of the transmission shaft (11), and a driving bevel gear (14) is fixed at one end of the rotating shaft (12), and the driving bevel gear (14) is meshed with the transmission bevel gear (13), and the transmission bevel gear (13) is meshed with the driven bevel gear (15).

6. The easily adjustable back muscle pull-up training device according to claim 1, characterized in that: A rocking wheel (18) is fixed to the other end of the rotating shaft (12).

7. The easily adjustable back muscle pull-up training device according to claim 2, characterized in that: The buffer plate (6) and the movable plate (5) are both slidably matched with the column (3).

8. The easily adjustable back muscle pull-up training device according to claim 2, characterized in that: The springs (9) and spring plates (8) are provided in multiple groups, and the multiple groups of spring plates (8) and springs (9) are all made of manganese steel material.

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