An energy saving exercise machine

Abstract

The application discloses a labor-saving exercise machine, which comprises a transmission assembly, a pull rod for longitudinal stretching of arms, a load-bearing rod located below the pull rod and used for bearing human body weight, a first rotating part movably connected with the pull rod and driven to rotate by movement of the pull rod, a second rotating part movably connected with the first rotating part and driven to rotate by the first rotating part, the second rotating part being movably connected with the load-bearing rod and driven to move in the opposite direction of the pull rod by rotation of the second rotating part, and an adjusting assembly used for adjusting angular velocities of the first rotating part and the second rotating part. Force is conducted through gear and chain transmission and is converted into relative movement of two rods, so that the effect of speed change and labor saving in the movement process is achieved, the demand of special users to perform pull-up training in a more relaxed state is met, and the users are in a safer, more stable and labor-saving movement state through the auxiliary exercise machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of exercise equipment, in particular to a labor-saving exercise equipment. BACKGROUND

[0002] Under the requirements of public sports and medical recovery, various training auxiliary equipments are designed and popularized for use, which provide great convenience for the users in body building efficiency whether for body exercise or movement recovery. Pull-up is a kind of medium-high intensity upper limb and waist and abdomen exercise, which needs certain equipment support to be carried out, especially when the action is done by minors or patients recovering from leg injuries. The auxiliary equipment is essential due to the weak lower limb strength, and a single bar with a seat or a lower puller is generally selected to realize this requirement in combination with other protection measures. However, for children, adolescents, patients, people with weak limbs, and people with difficulty in movement, it is not simple for these special groups to face such medium-high intensity exercise, and even they cannot complete the action by their own upper limb strength, which affects the efficiency of exercise, and the safety cannot be guaranteed when one person exercises. Therefore, a sitting pull-up auxiliary exercise equipment which can be adjusted according to the strength of the user is designed to enable the user to safely and controllably perform the sitting and labor-saving pull-up exercise according to his own needs. SUMMARY

[0003] This section is intended to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0004] In view of the above and / or the problems existing in the prior art that for children, adolescents, patients, people with weak limbs, and people with difficulty in movement, it is not simple for these special groups to face such medium-high intensity exercise, and even they cannot complete the action by their own upper limb strength, which affects the efficiency of exercise, and the safety cannot be guaranteed when one person exercises, the present application is proposed.

[0005] Therefore, the technical problem to be solved by the present application is to design a sitting pull-up auxiliary exercise equipment which can be adjusted according to the strength of the user to enable the user to safely and controllably perform the sitting and labor-saving pull-up exercise according to his own needs.

[0006] To solve the above technical problems, the present application provides the following technical solutions: a transmission assembly, comprising a pull rod for longitudinal stretching of the arm;

[0007] A load-bearing rod, located below the pull rod, for bearing the weight of the human body;

[0008] A first rotating member, movably connected with the pull rod, movement of the pull rod driving the first rotating member to rotate;

[0009] A second rotating member, synchronously rotating with the first rotating member, the second rotating member movably connected with the load-bearing rod, rotation of the second rotating member driving the load-bearing rod to move in the opposite direction of the pull rod;

[0010] An adjusting assembly for adjusting the angular velocity of the first and second rotating members.

[0011] As a preferred scheme of the power-saving exercise equipment, the adjusting assembly comprises a speed-changing component, the speed-changing component being provided with an input end and an output end;

[0012] The input end is coaxially rotatable with the first rotating member, and the output end is coaxially rotatable with the second rotating member.

[0013] As a preferred scheme of the power-saving exercise equipment, the first rotating member and the second rotating member are gear wheels;

[0014] A first driven rotating member, a gear wheel meshingly connected with the first rotating member through an upper tooth chain;

[0015] A second driven rotating member, a gear wheel meshingly connected with the second rotating member through a lower tooth chain.

[0016] As a preferred scheme of the power-saving exercise equipment, the adjusting assembly comprises a frame, the frame being provided at the top with a first cavity, at both sides with second cavities, a fixed rod being fixedly arranged in the first cavity, and the speed-changing component being arranged in the second cavities;

[0017] The first driven rotating member is symmetrically fixed at the end of the fixed rod close to the load-bearing rod;

[0018] The second driven rotating member is fixed in the second cavities through a short rod.

[0019] As a preferred scheme of the power-saving exercise equipment, the lower tooth chains are connected through the load-bearing rod, and the upper tooth chains are connected through the pull rod.

[0020] As a preferred scheme of the power-saving exercise equipment, the number of teeth and the radius of the first driven rotating member and the second driven rotating member are equal, and the number of teeth and the size of the first rotating member and the second rotating member are equal.

[0021] As a preferred scheme of the power-saving exercise machine, the input end and the output end are arranged in parallel and are rotatably connected to the inner wall of the second cavity.

[0022] As a preferred scheme of the power-saving exercise machine, the load bearing rod, the fixed rod, the short rod and the lower pull rod are arranged in parallel.

[0023] As a preferred scheme of the power-saving exercise machine, the movable cavity is arranged between the two second cavities in the frame.

[0024] As a preferred scheme of the power-saving exercise machine, the load bearing rod is arranged on the lower chain in the same direction as the lower pull rod on the upper chain.

[0025] The power-saving exercise machine has the following advantages: the force is transmitted by the gear and chain, and is converted into the relative movement of the two rods, so that the movement process is speed-variable and labor-saving, the needs of special users to perform pull-up training in a more relaxed state are met, and the users are in a more safe, stable and labor-saving movement state through the auxiliary exercise machine. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0027] Figure 1 A structure diagram of a power-saving exercise machine according to an embodiment of the present application is provided.

[0028] Figure 2 A rear side structure diagram of a power-saving exercise machine according to an embodiment of the present application is provided.

[0029] Figure 3 A front structure diagram of a power-saving exercise machine according to an embodiment of the present application is provided.

[0030] Figure 4 A power-saving transmission component structure diagram of a power-saving exercise machine according to an embodiment of the present application is provided.

[0031] Figure 5 A left side structure diagram of an adjusting component of a power-saving exercise machine according to an embodiment of the present application is provided.

[0032] Figure 6A right side view structural schematic diagram of an adjusting component of a labor-saving exercise machine according to an embodiment of the present application.

[0033] Figure 7 A simplified structural conceptual schematic diagram of a transmission assembly of a labor-saving exercise machine according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0035] In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0036] Secondly, the present application is described in detail in combination with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure will be partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual manufacture.

[0037] Thirdly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0038] Embodiment 1

[0039] Reference Figures 1-7 The present embodiment provides a labor-saving exercise machine, which comprises a transmission assembly 100, which is the entire auxiliary exercise equipment and is used as the basic assembly of the labor-saving pull-up, and comprises a pull rod 101 for longitudinal stretching of the user's arms;

[0040] A load-bearing rod 102 is arranged below the pull rod 101 and is used to bear the body weight of the user. The user can pull the pull rod 101 by sitting on the load-bearing rod 102 to perform the basic pull-up action in a sitting state.

[0041] The first rotating member 103 is movably connected with the pull rod 101, so that the movement of the pull rod 101 drives the first rotating member 103 to rotate, wherein the first rotating member 103 can be a gear, a rotating disc or other component capable of performing circumferential movement about its rotation axis, and the pull rod 101 can be a toothed rod on the gear, a handle on the rotating disc or other component capable of following the circumferential movement of the first rotating member 103 to produce longitudinal displacement movement change;

[0042] The second rotating member 104 is movably connected with the first rotating member 103, and the second rotating member 104 can be a gear engaged with the first rotating member 103 or another rotating disc with the same power source as the rotating disc;

[0043] The second rotating member 104 is movably connected with the load-bearing rod 102, and the rotation of the second rotating member 104 drives the load-bearing rod 102 to move in the opposite direction of the pull rod 101, that is, the rotation of the second rotating member 104 can make the load-bearing rod 102 move towards or away from the pull rod 101;

[0044] The adjusting assembly 200 is used to adjust the rotation speed of the first rotating member 103 and the second rotating member 104, so that the rotation speed of the two can be the same or different in size, and when the user sits on the load-bearing rod 102 and pulls the pull rod 101, there are three cases according to the above movement explanation:

[0045] ① The rotation speed of the first rotating member 103 and the second rotating member 104 is the same under the adjustment of the adjusting assembly 200, so the labor-saving degree is moderate;

[0046] ② The angular velocity of the first rotating member 103 is greater than that of the second rotating member 104, so the labor-saving degree is smaller;

[0047] ③ The angular velocity of the first rotating member 103 is smaller than that of the second rotating member 104, so the labor-saving degree is larger.

[0048] Embodiment 2

[0049] Reference Figures 1-7 This is the second embodiment of the present application, which is based on the previous embodiment and differs from the previous embodiment in that:

[0050] The adjusting assembly 200 includes a speed-changing component 201, which is a kind of gearbox, and its working principle is basically the same as that of an automobile gearbox. The speed-changing effect is achieved by engaging two groups of wheels with different radii and providing gear shifting through a gear shift lever;

[0051] The technical solution of the present application is briefly described as follows: the force consumed by a user when exerting force on the equipment is changed by the gear shifting principle of the gear box, the gear box serving as the gear shifting component 201 has an input end 201a and an output end 201b, the input end 201a is one end of the upper engaging wheel set, and the output end 201b is one end of the lower engaging wheel set;

[0052] The input end 201a rotates coaxially with the first rotating member 103, which means that when the user pulls the pull rod 101, the input end 201a is also rotated, and the output end 201b rotates coaxially with the second rotating member 104, and the pull rod 101 is pulled at the same time, the movement of the second rotating member 104 and the output end 201b is driven to rotate, and according to the internal structure of the gear box of the gear shifting component 201, the user can determine which one of the three situations described in Embodiment 1 is used in the movement process by adjusting the gear position, so as to control the degree of labor saving.

[0053] Embodiment 3

[0054] Reference Figures 1-7 For the third embodiment of the present application, the embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

[0055] The first rotating member 103 and the second rotating member 104 in the technical solution of the present application are gear wheels with a certain number of teeth;

[0056] The first driven rotating member 202 is a gear wheel connected with the first rotating member 103 through the upper tooth chain 202a, that is, the first driven rotating member 202 rotates synchronously with the first rotating member 103, and the linear speed of the two is the same due to the upper tooth chain 202a;

[0057] The second driven rotating member 203 is a gear wheel connected with the second rotating member 104 through the lower tooth chain 203a, and the two also rotate synchronously and have the same linear speed.

[0058] The first driven rotating member 202 is fixed above the first rotating member 103, and the first driven rotating member 202 is connected with the first rotating member 103 through the upper tooth chain 202a, that is, the pulling force of the upper tooth chain 202a drives the first driven rotating member 202 and the first rotating member 103 to rotate, and the second driven rotating member 203 is connected with the second rotating member 104 through the lower tooth chain 203a, that is, the pulling force of the upper tooth chain 202a drives the first rotating member 103 to rotate, thereby driving the lower engaging wheel set to rotate, that is, the second rotating member 104 rotates, and then the second driven rotating member 203 rotates, and the lower tooth chain 203a is subjected to a corresponding traction force.

[0059] Embodiment 4

[0060] Referring to Figures 1-6 For the fourth embodiment of the present application, which is based on the previous embodiment and differs from the previous embodiment in that: the frame 204 is provided with a first cavity 204a at the top, and the frame 204 is the outer shell part of the entire exercise apparatus and is also responsible for bearing other components, the first cavity 204a is a closed space at the top and is used to bear the first driven rotating member 202 and its matching component fixed rod 205, and both sides are provided with a second cavity 204b, which is also a closed space for bearing components, and the speed change assembly 100 is arranged in the second cavity 204b, and between the first cavity 204a and the second cavities 204b on both sides, there are perforations for the upper tooth chain 202a to pass through, and the tooth chain exists and operates in both cavities;

[0061] In detail, the first driven rotating member 202 is symmetrically fixed near the end of the fixed rod 205, that is, the fixed rod 205 is fixed in the first cavity 204a, and the first driven rotating member 202 is symmetrically arranged at both ends, and the second driven rotating member 203 is fixed in the second cavity 204b through the short rod 203b, which serves to stabilize the second driven rotating member 203, and the shaft of the second driven rotating member 203 is also the short rod 203b.

[0062] Embodiment 5

[0063] Referring to Figures 1-4 For the fifth embodiment of the present application, the embodiment provides a labor-saving exercise apparatus, which is based on the previous embodiment and differs from the previous embodiment in that: the lower tooth chains 203a in the second cavities 204b on both sides are connected through the load-bearing rod 102, which is the component on which the user sits when performing the pull-up action, and is used to bear the user, and the load-bearing rod 102 is fixed between the two lower tooth chains 203a, that is, the operation of the lower tooth chains 203a will exert a force on the user, which is an important part of achieving labor saving.

[0064] The upper tooth chains 202a on both sides are connected through the pull rod 101, which is the horizontal bar component that the user needs to pull when performing the pull-up action, and the user sits on the load-bearing rod 102 and hangs the pull rod 101 with the upper limbs, and then exerts force, at which time the upper tooth chain 202a will be forced to operate, thereby rotating the first gear 101b-1, and then rotating the second rotating member 104, and transmitting to the second driven rotating member 203, thereby causing the lower tooth chain 203a to operate, at which time the load-bearing rod 102 moves upward and lifts the user, thereby achieving the effect of saving labor, and the cooperation of the tooth chains will make the force exerted by the user have a certain inertia, and also achieve a certain labor-saving effect;

[0065] For example, in use, a set of upper engaging wheel group gear radius and the lower engaging wheel group gear radius ratio is 2:1, then in the use of the pull rod 101, the upper engaging wheel group rotates a circle, the lower engaging wheel group will rotate two circles, so that the load rod 102 will also provide a two times the strength effect of the acceleration, so as to lift the user, complete the larger labor saving.

[0066] Embodiment 6

[0067] Referring to Figures 1-4 For the sixth embodiment of the application, the embodiment provides a labor-saving exercise apparatus, which is based on the previous embodiment and differs from the previous embodiment in that the number of teeth and the radius of the first rotating member 103 and the second rotating member 104 are equal, so as to ensure that the gear ratio in the speed change part 201 can be transmitted by the input and output in equal proportion, without deviation in the labor-saving ratio, facilitating determination of the labor-saving degree.

[0068] The number of teeth and the radius of the first driven rotating member 202 and the second driven rotating member 203 are equal, and the consistency of the two drive wheels is also used to ensure equal transmission of the output and input, avoiding deviation.

[0069] Meanwhile, the equality of the number of teeth and the radius of the first driven rotating member 202 and the second driven rotating member 203 means that the linear velocity of the first rotating member 103 and the second rotating member 104 is completely equal, but the angular velocity is adjusted by the speed change part 201, achieving different degrees of labor saving, which more perfectly explains the characteristics of the technical solution, that is, changing the angular velocity size relationship is achieved by gear shifting adjustment of the internal engaging wheel group of the speed change part 201.

[0070] Embodiment 7

[0071] Referring to Figures 1-4 For the seventh embodiment of the application, the embodiment provides a labor-saving exercise apparatus, which is based on the previous embodiment and differs from the previous embodiment in that the input end 201a and the output end 201b are arranged in parallel and are fixedly connected to the inner wall of the second cavity 204b. The input end 201a serves as the end of the upper engaging wheel group, and its shaft is the wheel group shaft rod, which passes through the speed change part 201 from one side and is fixed to the inner wall of the second cavity 204b. The output end 201b serves as the end of the lower engaging wheel group, and its shaft rod also passes through the other side of the adjusting part and is fixed to the other side of the inner wall of the second cavity 204b.

[0072] In detail, the parallel arrangement of the two is also to ensure the stable engagement and accurate force transmission of the two wheel groups, and facilitate adjustment of the labor-saving efficiency without deviation caused by angle deviation.

[0073] Embodiment 8

[0074] Referring to Figures 1-4 For the eighth embodiment of the present application, the embodiment provides a labor-saving exercise machine, which is based on the previous embodiment and is different from the previous embodiment in that the load-bearing rod 102, the fixed rod 205, the short rod 203b and the pull rod 101 are arranged in parallel with each other, the load-bearing rod 102 and the pull rod 101 need to be kept in parallel first, so as to facilitate the user to perform the action of pull-up, and the action is standard, and the waist and abdomen will not be injured in the stretching process, secondly, the fixed rod 205 and the short rod 203b determine the positional relationship of the first driving rod 201 and the second driving rod 202 respectively, and the first driving rod 201 and the second driving rod 202 also need to be kept in parallel, so as to ensure the stability of the labor-saving efficiency.

[0075] Embodiment 9

[0076] Referring to Figures 1-4 For the ninth embodiment of the present application, the embodiment provides a labor-saving exercise machine, which is based on the previous embodiment and is different from the previous embodiment in that the movable cavity 207 is arranged between the two second cavities 204b in the frame 204, and the frame 204 is provided with three spaces in total, the first cavity 204a for bearing the first driven rotating member 202 and the fixed rod 205, the second cavity 204b for bearing the entire speed-changing assembly 100 and the second driven rotating member 203, and the third cavity 207 for allowing the user to sit and perform the action, and the first cavity 204a and the second cavity 204b are not closed spaces, and the load-bearing rod 102 and the pull rod 101 mainly exist in the third cavity 207 and are contacted and forced by the user.

[0077] Embodiment 10

[0078] Referring to Figures 1-7 For the tenth embodiment of the present application, the embodiment provides a labor-saving exercise machine, which is based on the previous embodiment and is different from the previous embodiment in that the direction of the load-bearing rod 102 on the lower toothed chain 203a is consistent with the direction of the pull rod 101 on the upper toothed chain 202a, and the same direction of the direction can be opposite in the gear meshing relationship, so as to ensure the movement transmission relationship that the pull rod 101 is pulled down and the load-bearing rod 102 is lifted, and to ensure the realization of the action of saving labor.

[0079] Embodiment 11

[0080] Referring to Figure 7For the eleventh embodiment of the present application, the embodiment provides a labor-saving exercise machine, which is based on the previous embodiment, and is different from the previous embodiment in that: according to claim one, one of the simplest models of the technical solution of the present application can be obtained, for example:

[0081] The first rotating member 103 and the second rotating member 104 are two rotating discs with friction that are in contact with each other, the pull rod 101 is fixed on the first rotating member 103, the load-bearing rod 102 is fixed on the second rotating member 104, and when the user exerts a downward force on the pull rod 101, the first rotating member 103 and the second rotating member 104 rotate simultaneously, as stated in claim one, thereby driving the load-bearing rod 102 and the pull rod 101 to move towards each other, and the user sitting on the load-bearing rod 102 will be naturally lifted, thereby achieving the effect of saving labor.

[0082] The adjusting assembly 200 is fixed with a plurality of discs with different radii, and the angular velocity relationship between the two rotating members in contact can be determined by removing other discs and replacing the outermost disc, thereby controlling the speed and determining the different labor-saving effects.

[0083] Importantly, it should be noted that the configurations and arrangements of the present application shown in the various exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail herein, persons of ordinary skill in the art, having the benefit of this disclosure, will readily appreciate that many modifications are possible in the details of the application without departing from the novel teachings and advantages described herein. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of discrete elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed or re-sequenced without departing from the generality of the application. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described but extends to various modifications, combinations, and permutations of the embodiments described herein that still fall within the scope of the appended claims.

[0084] Furthermore, in order to provide a brief description of the exemplary embodiments, not all features of the actual embodiments can be described.

[0085] It is to be understood that the development of the particular implementations described herein was motivated by the desire to solve real-world problems, and as such the claimed implementations can be susceptible to further implementation while still being generically consistent with the descriptions provided herein. Specifically, although many of the examples provided herein describe particular implementations with reference to particular applications for illustration, those of ordinary skill in the art will recognize that the described implementations can be used in other applications and / or modified to be used in other applications and that the descriptions provided herein do not limit the claimed implementations to the applications described by way of example. Those skilled in the art will readily recognize a variety of applications for the claimed implementations.

[0086] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered by the claims of the present application.

Claims

1. An ergo-dynamic exercise machine characterized by: The transmission assembly (100) comprises a pull rod (101) for longitudinal stretching of the arm; a load-bearing rod (102) below the pull rod (101) for bearing the body weight; a first rotating member (103) movably connected with the pull rod (101), movement of the pull rod (101) driving the first rotating member (103) to rotate; a second rotating member (104) movably connected with the first rotating member (103), the second rotating member (104) movably connected with the load-bearing rod (102), rotation of the second rotating member (104) driving the load-bearing rod (102) to move in the opposite direction of the pull rod (101); an adjusting assembly (200) for adjusting the angular velocity of the first rotating member (103) and the second rotating member (104); the adjusting assembly (200) comprises a speed-changing component (201) provided with an input end (201a) and an output end (201b); the input end (201a) coaxially rotates with the first rotating member (103), and the output end (201b) coaxially rotates with the second rotating member (104); the first rotating member (103) and the second rotating member (104) are gears; a first driven rotating member (202) is a gear meshingly connected with the first rotating member (103) through an upper tooth chain (202a); a second driven rotating member (203) is a gear meshingly connected with the second rotating member (104) through a lower tooth chain (203a); the speed-changing component (201) comprises an upper meshing wheel set and a lower meshing wheel set; the gear radius of the upper meshing wheel set and the gear radius of the lower meshing wheel set are in a ratio of 2:

1. the adjusting assembly (200) comprises a frame (204) provided at the top with a first cavity (204a) and at both sides with a second cavity (204b), a fixed rod (205) fixedly arranged in the first cavity (204a), and the speed-changing component (201) arranged in the second cavity (204b); 2. The power saving exercise machine of claim 1, wherein: the first driven rotating member (202) is symmetrically fixed at the end of the fixed rod (205) close to the end; the second driven rotating member (203) is fixed in the second cavity (204b) through a short rod (203b). the lower tooth chain (203a) is connected through the load-bearing rod (102), and the upper tooth chain (202a) is connected through the pull rod (101).

3. An energy conserving exercise machine as set forth in claim 2 wherein: the first driven rotating member (202) and the second driven rotating member (203) are equal in the number of teeth and the radius, and the first rotating member (103) and the second rotating member (104) are equal in the number of teeth and the size.

4. The power saving exercise machine of claim 3 wherein: the input end (201a) and the output end (201b) are arranged in parallel and movably connected to the inner wall of the second cavity (204b).

5. An energy conserving exercise apparatus as claimed in claim 4, wherein: the load-bearing rod (102), the fixed rod (205), the short rod (203b) and the pull rod (101) are arranged in parallel.

6. An energy conserving exercise apparatus as claimed in claim 5, wherein: ​ 7. A power saving exercise machine according to claim 6, wherein: In the frame (204), the second cavities (204b) on both sides are provided with movable cavities (206).

8. An energy conserving exercise apparatus as claimed in claim 7, characterized in that: The direction of the load rod (102) on the lower tooth chain (203a) is consistent with the direction of the pull rod (101) on the upper tooth chain (202a).

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