Adjustable resistance output mechanism and strength training station with same

Abstract

The utility model provides an adjustable resistance output mechanism and a strength training station with the same, and the adjustable resistance output mechanism comprises a plurality of resistance elements which apply resistance synchronously, and each resistance element is provided with an output shaft; the sliding seat is assembled in front of the output shaft in a sliding mode in the resistance output direction of the resistance element, and a plurality of sliding channels allowing the output shaft to penetrate through and move are formed in the sliding seat; the adjusting assembly comprises adjusting units arranged corresponding to the sliding channels, each adjusting unit is provided with a telescopic control end, and the control ends are designed to be inserted in the non-axial direction of the sliding channels so as to limit the moving track of the output shaft in the sliding channels; the number of resistance elements participating in resistance output is controlled through the adjusting unit, fine and large-range adjustment of resistance is achieved, compared with an existing design, the design is simpler, the design difficulty is lowered, the potential motion interference risk is reduced, and meanwhile later maintenance work is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of strength training equipment, in particular to an adjustable resistance output mechanism and a strength training station with the mechanism. Background Art

[0002] As people's quality of life improves, the demand for personal fitness exercises is increasing, and home fitness is becoming the mainstream lifestyle for young people. For those who are keen on muscle strength training, it is very important to choose a strength training device suitable for the home environment. The mainstream traditional equipment on the current market mostly uses counterweight iron blocks as a source of resistance. Although such equipment can meet various muscle strength training needs, its disadvantages are obvious: large size, high purchase cost, large space occupation, and collision between iron blocks easily generate large noise and vibration, which is obviously not suitable for home use.

[0003] In order to deal with the above problems, the prior art has already developed an adjustable force resistance device as shown in Chinese patent CN220026024U, which is specially used for home strength training devices. The device includes components such as a frame, a handle, a pulley block and multiple gas springs. The gas spring cooperates with the guide rods arranged in parallel, and the movable plate slides on the guide rods to achieve contact between the piston rod and the movable plate. The handle is connected to the movable plate via a pull rope that bypasses the pulley block, and the movable plate is pulled to compress the gas spring. In this way, when the handle is pulled, the movable plate squeezes the gas spring piston rod, causing it to move into the pressure cylinder, generating an air pressure difference, forming an antagonistic force, and providing the user with the counter-resistance required for strength training, thereby achieving a strength training effect. Compared with traditional counterweight training devices, this design effectively avoids the noise problem caused by counterweight collision.

[0004] However, the resistance device of the above strength training device still has the following shortcomings:

[0005] 1. The resistance adjustment mechanism is relatively simple, relying only on the stepper motor to adjust the position of the top block and block the gas spring within the coverage range of the top block to achieve basic resistance adjustment. However, this method is difficult to achieve a larger range and more refined resistance adjustment to meet diversified training needs.

[0006] 2. The structure of the mechanism is highly complex, and the layout relationship between the through hole through which the gas spring passes, the top block, the stepper motor and the screw rod must be carefully coordinated to prevent interference during movement, which greatly increases the difficulty of design and maintenance.

[0007] In view of this, the inventor specially designed an adjustable resistance output mechanism and a strength training station with the mechanism, and the present case was thus generated. Utility Model Content

[0008] In order to solve the problems of the single resistance adjustment mechanism and complex mechanism structure of the strength training device in the above-mentioned prior art, one of the technical solutions of the utility model is as follows:

[0009] An adjustable resistance output mechanism, comprising:

[0010] A plurality of resistance elements for synchronously applying resistance, each of the resistance elements being provided with an output shaft, the output shaft being capable of being compressed in the axial direction to generate antagonistic resistance;

[0011] A sliding seat is slidably mounted in front of the output shaft along the resistance output direction of the resistance element, and is provided with a plurality of sliding channels through which the output shaft can pass and move;

[0012] An adjustment assembly, comprising an adjustment unit corresponding to each of the sliding channels, each of the adjustment units being equipped with a retractable operating end, the operating end being designed to be inserted along a non-axial direction of the sliding channel to limit a moving track of the output shaft in the sliding channel;

[0013] A resistance output member, disposed on the sliding seat, and used to drive the sliding seat to move toward the compression output shaft;

[0014] Wherein, the resistance element is fixedly assembled, and the adjustment assembly is kept in a fixed installation state relative to the sliding base.

[0015] Preferably, the resistance element comprises a fixing seat and an output shaft movably extending along one side of the fixing seat, and the output shaft compresses the air inside the fixing seat in a retracted state to generate antagonistic resistance.

[0016] Preferably, the sliding seat comprises a guide rod arranged parallel to the axial direction of the output rod, a movable plate sliding on the guide rod, and a mounting seat arranged at the front side of the movable plate, and the sliding channel passes through the movable plate and the mounting seat in sequence.

[0017] Preferably, the plurality of adjustment units are arranged on the upper end surface or the lower end surface of the mounting seat.

[0018] Preferably, a pair of guide rods are provided and symmetrically distributed on both sides of the movable plate.

[0019] Preferably, a pair of linear bearings are symmetrically arranged on both sides of the movable plate, and the two guide rods are correspondingly penetrated through the linear bearings at corresponding positions.

[0020] Preferably, the sliding seat is provided with at least one closed limiting channel corresponding to the output shaft and allowing the output shaft to penetrate therein.

[0021] Preferably, two limiting channels are provided and are distributed on both sides of the plurality of sliding channels.

[0022] Preferably, the regulating unit is a solenoid valve or a cylinder.

[0023] The second technical solution of the utility model is as follows:

[0024] A strength training station includes a resistance output mechanism.

[0025] The beneficial effects of the utility model are as follows:

[0026] The utility model uses the design of the sliding channel and the adjustment component on the sliding seat to allow the operating end to be inserted into the sliding channel in a non-axial direction to limit the moving track of the output shaft, thereby using the operating end to control the number of resistance elements participating in the output resistance, thereby achieving refined and wide-range adjustment of the resistance. This design allows users to flexibly select the resistance size according to their personal training needs and physical conditions, thereby enhancing the personalization and adaptability of training.

[0027] In addition, compared with the prior art that requires fine coordination of the relationship between the gas spring, top block, stepper motor and screw rod layout, the resistance output mechanism structure of the utility model is simpler and clearer, and the resistance element, sliding seat, adjustment assembly and resistance output part have clear division of labor and mutual cooperation, which not only reduces the design difficulty, but also reduces the potential risk of motion interference, improves the stability and reliability of the equipment, and also facilitates subsequent maintenance work.

[0028] To sum up, the utility model controls the number of resistance elements involved in the output resistance through the adjustment unit, thereby achieving refined and large-scale adjustment of the resistance. Compared with the existing design, it is simpler, which not only reduces the design difficulty, but also reduces the potential risk of motion interference, and is also convenient for subsequent maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0030] in:

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the utility model;

[0032] Figure 2 It is a schematic diagram of the top view of the structure of the first embodiment of the utility model;

[0033] Figure 3 It is a three-dimensional structural schematic diagram of the sliding seat in the first embodiment of the utility model;

[0034] Figure 4 It is one of the cross-sectional structural schematic diagrams highlighting the sliding seat in the first embodiment of the utility model;

[0035] Figure 5 It is a schematic cross-sectional view of the overall structure of the first embodiment of the present utility model;

[0036] Figure 6 It is a partial cross-sectional structural schematic diagram highlighting the matching relationship between the output shaft and the sliding seat in the first embodiment of the utility model;

[0037] Figure 7 This is the second schematic cross-sectional structure diagram highlighting the sliding seat in the first embodiment of the present utility model;

[0038] Figure 8 This is a schematic diagram of the overall structure of the second embodiment of the present utility model;

[0039] Fig. 9 It is a partial structural schematic diagram highlighting the installation position of the resistance output mechanism in the second embodiment of the present utility model.

[0040] Description of labels:

[0041] 10. Resistance element; 11. Fixed seat; 12. Output shaft; 20. Sliding seat; 21. Guide rod; 22. Movable plate; 23. Mounting seat; 231. Stop channel; 24. Mounting plate; 25. Mounting groove; 30. Sliding channel; 40. Adjustment assembly; 41. Adjustment unit; 42. Operating end; 50. Resistance output member; 51. Fixed plate; 52. Guide wheel; 60. Restriction channel; 70. Linear bearing; 80. Housing; 81. Pull ring; 82. Pull rope; 83. Winding. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Example

[0043] See also Figures 1 to 7 , is an adjustable resistance output mechanism as the best embodiment of the utility model, comprising:

[0044] A plurality of resistance elements 10 for synchronously applying resistance, each resistance element 10 being provided with an output shaft 12, the output shaft 12 being able to be compressed in the axial direction to generate antagonistic resistance;

[0045] The sliding seat 20 is slidably mounted in front of the output shaft 12 along the resistance output direction of the resistance element 10, and is provided with a plurality of sliding channels 30 for the output shaft 12 to pass through and move;

[0046] The adjustment assembly 40 includes an adjustment unit 41 corresponding to each sliding channel 30, each adjustment unit 41 is equipped with a retractable operating end 42, and the operating end 42 is designed to be inserted along the non-axial direction of the sliding channel 30 to limit the moving track of the output shaft 12 in the sliding channel 30;

[0047] The resistance output member 50 is disposed on the sliding seat 20 and is used to drive the sliding seat 20 to move toward the compression output shaft 12;

[0048] The resistance element 10 is fixedly assembled with the corresponding external mounting surface, and the adjustment assembly 40 is kept in a fixed mounting state relative to the sliding base.

[0049] Specifically, in the present embodiment, the resistance element 10 is a pneumatic rod or a pneumatic cylinder or a gas spring, and the resistance element 10 includes a fixed seat 11 and an output shaft 12 movably extending along one side of the fixed seat 11. The fixed seat 11 is cylindrical and its outer diameter is larger than the output shaft 12. The inner diameter of the sliding channel 30 is adapted to the outer diameter of the output shaft 12. The output shaft 12 compresses the air inside the fixed seat 11 in the retracted state to generate antagonistic resistance. Thus, when the sliding seat 20 moves toward the direction approaching the resistance element 10, it can easily contact the output shaft 12. When it continues to move inward, the output shaft 12 stopped by the operating end 42 continues to be compressed inward with the sliding seat 20, generating corresponding resistance, and then transmitting the resistance output generated by it through the resistance output member 50.

[0050] Preferably, Figure 2 , 3 As shown in FIG. 4 , the sliding seat 20 is provided with at least one closed limiting channel 60 corresponding to the output shaft 12 and through which the output shaft 12 can pass.

[0051] Specifically, in the present embodiment, a total of six resistance elements 10 are provided and arranged side by side in parallel, the output shafts 12 of the six resistance elements 10 output in the same direction, and four sliding channels 30 are correspondingly provided, corresponding to the output shafts 12 of the four central resistance elements 10, and a total of two closed limiting channels 60 are provided and correspond to the output shafts 12 of the two outermost resistance elements 10. Thus, by setting the limiting channels 60, the basic resistance output of the entire resistance output mechanism can be maintained, that is, when there is no output operation of any adjusting unit 41, the output shafts 12 of the two outermost resistance elements 10 of the entire resistance output mechanism are still stopped by the limiting channels 60, thereby maintaining the lowest resistance output value, and in conjunction with the output state change of the adjusting unit 41, a more refined and wide-ranging adjustment of the resistance output size can be achieved.

[0052] In particular, the setting of the number of resistance elements 10 and the setting of the number of limiting channels 60 are not limited to the above situation. According to the actual space size and output requirements, the number of corresponding resistance elements 10 and the number of limiting channels 60 can be increased or decreased. In addition, the setting position of the limiting channels 60 is not limited to both sides of the sliding channel 30, and can also be interspersed between the sliding channels 30, which is not limited here.

[0053] Preferably, as Figure 3 、 4 、shown in Figure 5, the sliding seat 20 includes guide rods 21 arranged parallel to the axial direction of the output rod, a movable plate 22 sliding on the guide rods 21, and a mounting seat 23 provided on the front side of the movable plate 22. The sliding channel 30 sequentially penetrates through the movable plate 22 and the mounting seat 23.

[0054] Specifically, to realize the installation and fixation of the movable plate 22 and the mounting seat 23, locking holes (not marked in the figure) are opened on the movable plate on the periphery of each sliding channel 30 and the limiting channel 60, and the mounting seat 23 is locked and fixed on the mounting plate 22 through the locking holes and bolts.

[0055] In this embodiment, there are a pair of guide rods 21, which are symmetrically distributed on both sides of the movable plate 22. The cross-section of the movable plate 22 is in a "C" shape with the opening facing the resistance element 10. Two mounting plates 24 in a "C" shape with opposite opening directions are fixed on the opening side. Mounting grooves 25 are opened at the relative positions on the mounting plates 24 and the movable plate 22. A linear bearing 70 or a corresponding guiding member with a linear guiding function is installed in each of the two mounting grooves 25 on both sides. The two guide rods 21 are slidably installed on the linear bearing 70 or the guiding member. Thus, the installation and fixation of the linear bearing 70 can be facilitated through the mounting plates 24 and the mounting grooves 25, and a smooth sliding connection with the guide rods 21 can be realized through the linear bearing 70, thereby realizing the stable and smooth movement of the sliding seat 20 along the telescopic direction of the output rod.

[0056] In particular, the setting position and number of the guide rods 21 are not limited to the above situation. According to the actual space size and stability requirements, the number of the guide rods 21 and the position arrangement can be increased or decreased, which is not limited here.

[0057] Preferably, as Figure 1 、 3 shown, a number of adjusting units 41 are arranged on the upper end surface or the lower end surface of the mounting seat 23.

[0058] In this embodiment, the number of the adjusting units 41 is 4, and they are correspondingly arranged on the upper end of the mounting seat 23. Each adjusting unit 41 is correspondingly inverted directly above the 4 central sliding channels 30, and its operating end 42 can penetrate downward into the sliding channel 30 to obstruct the passage of the output rod, thereby cooperating to realize the compression of the output rod.

[0059] As Figure 4 , 6 , shown in FIGS. 6 and 7, in order to cooperate with the installation and use of the adjusting unit 41, a stop channel 231 is vertically penetrated downward from the upper end of the mounting seat 23 at positions corresponding to the 4 sliding channels 30. The stop channel 231 vertically penetrates the corresponding sliding channel 30 and forms a cross shape with the sliding channel 30. Each adjusting unit 41 is installed upside down above the corresponding stop channel 231, and its operating end 42 extends into the stop channel 231. When the operating end 42 retracts, its lowermost end is higher than the highest position of the sliding channel 30, thereby avoiding blocking the passage of the output rod. At this time, the resistance element 10 at the corresponding position is not pressed to generate resistance. When the operating end 42 extends, it penetrates into the sliding channel 30 and blocks the passage of the output rod. At this time, the resistance element 10 at the corresponding position is pressed as the sliding seat 20 moves, generating corresponding resistance, thus facilitating the control of the resistance element 10.

[0060] Specifically, as Figure 7 shown, in order to facilitate the installation of the resistance output mechanism and reduce the overall installation volume of the resistance output mechanism, the mounting seat 23 is configured such that the vertical distance between its upper and lower parts is smaller than the vertical distance of the movable plate 22, and it is located at the central position of the upper and lower ends of the movable plate 22. The adjusting element should be selected such that when it is installed on the mounting seat 23, its highest position is lower than the highest position of the movable plate 22 or slightly higher than the highest position of the movable plate 22, thereby reducing the longitudinal extension distance of the overall resistance output mechanism, and thus minimizing its volume to enable it to be easily installed inside the housing 80 of the corresponding strength training station.

[0061] Preferably, in this embodiment, the adjusting unit 41 is a solenoid valve or a micro cylinder. Through the solenoid valve or the micro cylinder, the telescopic movement of the operating end 42 can be conveniently controlled, thereby facilitating the user to adjust the output resistance of the entire resistance output mechanism.

[0062] In addition, as Figure 3 , 7 shown, in this embodiment, two groups of resistance output members 50 are arranged along both sides of the movable plate 22 and are distributed on the side of the movable plate 22 close to the resistance element 10. Each group of resistance output members 50 includes a fixing plate 51 in a "C" shape and a plurality of guide wheels 52 arranged side by side and coaxially rotatably connected between the two side walls of the fixing plate 51. The number of guide wheels 52 is 3. The opening direction of the fixing plate 51 faces the resistance element 10. Thus, the plurality of guide wheels 52 can be connected to transmission members such as an external pull rope 82 to realize the pulling of the entire sliding seat 20, so that it moves along the direction close to the resistance element 10, thereby transmitting the resistance generated by the plurality of resistance elements 10 along the pull rope 82 to the user's hand pulling the pull rope 82, achieving the exercise purpose of outputting resistance.

[0063] In particular, the resistance output member 50 is not limited to the above situation, and may also include a connection end that can be directly connected to the external pull rope 82, such as a buckle, a threaded member, etc., so as to achieve the pulling of the sliding seat 20, which is not limited here. Example

[0064] A strength training station, such as Figure 8-9 As shown, it includes the resistance output mechanism as in the first embodiment.

[0065] Specific, combined Figure 8 , 9 The strength training station also includes a shell 80, a pull ring 81 and a pull rope 82. The resistance output mechanism is installed and fixed inside the shell 80. The pull ring 81 is placed outside the shell 80 and is correspondingly connected to the resistance output member 50 in the resistance output mechanism through the pull rope 82. The pull rope 82 is finally connected to the guide wheel on the resistance output member 50 through the corresponding windings 83 arranged inside the shell 80. The fixed seat 11 of the resistance element 10 and the guide rods 21 on both sides thereof are fixedly installed in the shell 80. The sliding seat 20 is correspondingly slidably assembled on the guide rod 21 through the linear bearing 70. The moving range of the sliding seat 20 can be limited by the boundary of the shell 80 and the fixed seat 11 of the resistance element 10, so that it can stably slide inside the shell 80 to generate resistance.

[0066] Therefore, when the user pulls the pull ring 81, the sliding seat 20 in the shell 80 follows the pull rope 82 and moves toward the resistance element 10, so that the resistance generated by each resistance element 10 is transmitted to the user's hand along the pull rope 82 and the pull ring 81, so that the user can get exercise.

[0067] The beneficial effects of the utility model are as follows:

[0068] The utility model uses the design of the sliding channel 30 and the adjustment assembly 40 on the sliding seat 20 to allow the operating end 42 to be inserted into the sliding channel 30 in a non-axial direction to limit the moving track of the output shaft 12, thereby using the operating end 42 to control the number of resistance elements 10 participating in the output resistance, thereby achieving refined and wide-range adjustment of the resistance. This design allows users to flexibly select the resistance size according to personal training needs and physical conditions, thereby enhancing the personalization and adaptability of training.

[0069] In addition, compared with the prior art which requires fine coordination of the relationship between the gas spring, top block, stepper motor and screw rod layout, the resistance output mechanism structure of the utility model is simpler and clearer, and the resistance element 10, sliding seat 20, adjustment assembly 40 and resistance output member 50 have clear division of labor and mutual cooperation, which not only reduces the design difficulty, but also reduces the potential risk of motion interference, improves the stability and reliability of the equipment, and also facilitates subsequent maintenance work.

[0070] By adopting a fixedly assembled resistance element 10 and an adjustment assembly 40 that remains in a fixed installation state, as well as a structure in which linear bearings 70 are arranged on both sides of the movable plate 22 and cooperate with the guide rods 21, smooth and low-noise operation is ensured during the training process.

[0071] In summary, the adjustable resistance output mechanism and the strength training station with the mechanism provided by the utility model, with their characteristics of diversified resistance adjustment, simplified mechanism structure, optimized user experience and integrated design, effectively solve the problems of the single resistance adjustment mechanism and complex mechanism structure of existing strength trainers, and provide home fitness enthusiasts with a more efficient, convenient and personalized training tool, which has high practical value and market prospects.

[0072] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An adjustable resistance output mechanism, characterized in that: include: A plurality of resistance elements (10) for synchronously applying resistance, each of the resistance elements (10) being provided with an output shaft (12), the output shaft (12) being capable of being compressed in the axial direction to generate antagonistic resistance; A sliding seat (20) is slidably mounted in front of the output shaft (12) along the resistance output direction of the resistance element (10), and is provided with a plurality of sliding channels (30) through which the output shaft (12) can pass and move; an adjustment assembly (40), comprising an adjustment unit (41) arranged corresponding to each of the sliding channels (30), each of the adjustment units (41) being equipped with a retractable operating end (42), the operating end (42) being designed to be inserted along a non-axial direction of the sliding channel (30) to limit a moving track of the output shaft (12) in the sliding channel (30); A resistance output member (50) is disposed on the sliding seat (20) and is used to drive the sliding seat (20) to move in the direction of the compression output shaft (12); The resistance element (10) is fixedly assembled, and the adjustment assembly (40) is kept in a fixed installation state relative to the sliding base.

2. The adjustable resistance output mechanism according to claim 1, characterized in that: The resistance element (10) comprises a fixing seat (11) and an output shaft (12) movably extending along one side of the fixing seat (11); the output shaft (12) compresses the air inside the fixing seat (11) in a retracted state to generate antagonistic resistance.

3. The adjustable resistance output mechanism according to claim 1, characterized in that: The sliding seat (20) comprises a guide rod (21) arranged parallel to the axis of the output rod, a movable plate (22) sliding on the guide rod (21), and a mounting seat (23) arranged on the front side of the movable plate (22), and the sliding channel (30) passes through the movable plate (22) and the mounting seat (23) in sequence.

4. The adjustable resistance output mechanism according to claim 3, characterized in that: The plurality of adjustment units (41) are arranged on the upper end surface or the lower end surface of the mounting seat (23).

5. The adjustable resistance output mechanism according to claim 3, characterized in that: A pair of guide rods (21) are provided and symmetrically distributed on both sides of the movable plate (22).

6. The adjustable resistance output mechanism according to claim 5, characterized in that: A pair of linear bearings (70) are symmetrically arranged on both sides of the movable plate (22), and the two guide rods (21) are correspondingly inserted into the linear bearings (70) at corresponding positions.

7. The adjustable resistance output mechanism according to claim 1, characterized in that: The sliding seat (20) is provided with at least one closed limiting channel (60) corresponding to the output shaft (12) and capable of allowing the output shaft (12) to penetrate therethrough.

8. The adjustable resistance output mechanism according to claim 7, characterized in that: The limiting channels (60) are provided in two numbers and are distributed on both sides of the plurality of sliding channels (30).

9. An adjustable resistance output mechanism according to any one of claims 1 to 7, characterized in that: The regulating unit (41) is a solenoid valve or a micro cylinder.

10. A strength training station, characterized in that: It comprises the resistance output mechanism as claimed in claim 1.

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