Multifunctional resistance body builder

Abstract

The utility model relates to the field of body builders, and provides a multifunctional resistance body builder which comprises a supporting mechanism, a resistance mechanism and a stretching mechanism, the resistance mechanism and the stretching mechanism are both installed on the supporting mechanism, and the stretching mechanism is connected with the resistance mechanism; the supporting mechanism comprises a supporting frame and a protective shell, the supporting frame is installed on a wall body, and the protective shell is installed on the supporting frame; the hanging hole is formed in the back of the supporting frame and matched with the hook installed on the wall, so that the body builder can be hung on the wall, the body builder can be installed after the height is determined according to the height of a user, and the body builder is more flexible and changeable to use; meanwhile, resistance mechanisms which are symmetrically arranged are adopted in the body builder, the corresponding number of resistance springs are limited through positioning buttons at the bottom, meanwhile, balanced and stable output of strength is achieved through pulleys with gradually-changed diameters, and the strength training requirement is met.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to a multifunctional resistance fitness equipment. Background Art

[0002] With the improvement of living standards, more and more people begin to pay attention to physical health. Fitness equipment for exercising arm strength is widely used because of its simple structure and remarkable fitness effect. Existing arm resistance fitness equipment is generally placed on the ground. To meet the use requirements, the height of the fitness equipment is generally set relatively high and fixed, which is not friendly to people with special height requirements;

[0003] At the same time, to meet the strength requirements, a certain height is also needed. Content of the Utility Model

[0004] The utility model provides a multifunctional resistance fitness equipment. By arranging hanging holes on the back of the support frame and cooperating with hooks installed on the wall, the fitness equipment can be hung on the wall. During installation, the height can be determined according to one's own height and then installed, making the use more flexible and variable; at the same time, the resistance mechanism of the fitness equipment in this application is symmetrically arranged, and the corresponding number of resistance springs is limited by the positioning buttons at the bottom. At the same time, the pulley with a gradually changing diameter is used to achieve a balanced and stable output of force, meeting the strength training requirements.

[0005] The technical solution of the utility model is realized as follows:

[0006] A multifunctional resistance fitness equipment, comprising: a support mechanism;

[0007] It further includes a resistance mechanism and a stretching mechanism. The resistance mechanism and the stretching mechanism are both installed on the support mechanism, and the stretching mechanism is connected to the resistance mechanism;

[0008] The support mechanism includes a support frame and a protective shell. The support frame is installed on the wall, and the protective shell is installed on the support frame;

[0009] Hanging holes are arranged on the back of the support frame, and hooks are installed in the hanging holes. The hooks are installed on the wall through bolts;

[0010] The resistance mechanism is installed on the support frame, and the resistance mechanism is located in the protective space formed by the protective shell and the support frame;

[0011] The resistance mechanism includes a pull rope, a movable pulley, a first fixed pulley, a second fixed pulley, a third fixed pulley, a spring resistance member, a first sliding rod, a first sliding sleeve, a second sliding rod and a second sliding sleeve;

[0012] A support beam is provided on the support frame. The tops of the first sliding rod and the second sliding rod are installed on the support beam, and the bottoms are installed on the inner bottom of the support frame;

[0013] The first sliding sleeve is sleeved on the first sliding rod, and the second sliding sleeve is sleeved on the second sliding rod;

[0014] Both ends of the spring resistance member are connected to the first sliding sleeve and the second sliding sleeve, and the bottom end of the spring resistance member is connected to the inner bottom of the support frame;

[0015] The movable pulley is installed on the top of the spring resistance member, the first fixed pulley is installed on the bottom of the support beam, the second fixed pulley is installed on the inner top of the support frame, and the third fixed pulley is installed on the inner top of the support frame;

[0016] The second fixed pulley and the third fixed pulley are fixed pulleys with gradually changing diameters, and the second fixed pulley and the third fixed pulley are symmetrically installed on the inner top of the support frame;

[0017] The pulling rope is wound around the second fixed pulley, the movable pulley, the first fixed pulley and the third fixed pulley in sequence from left to right, and both ends of the pulling rope extend out of the support frame;

[0018] There are three first fixed pulleys and four movable pulleys;

[0019] Grip portions are installed at both ends of the pulling rope.

[0020] Furthermore, the spring resistance member includes an upper top plate, a resistance spring, a lower bottom plate and a positioning button;

[0021] The movable pulley is installed above the upper top plate;

[0022] Both sides of the upper top plate and the lower bottom plate are installed on the first sliding sleeve and the second sliding sleeve respectively;

[0023] The top of the resistance spring is detachably and fixedly installed on the upper top plate;

[0024] A limiting plate is connected to the bottom end of the resistance spring. A limiting groove is provided on the inner bottom of the support frame. Limiting holes are provided on the limiting plate, the limiting groove and the lower bottom plate. The limiting plate is clamped inside the limiting groove;

[0025] The positioning button includes a first sleeve, a first ejector rod, a second ejector rod, a second sleeve, a third sleeve and a telescopic spring. The third sleeve is installed on the protective case. Positioning rods are symmetrically arranged on the third sleeve. Collars are symmetrically arranged on the second sleeve. The collars are slidably sleeved on the positioning rods. The left end of the first ejector rod is sleeved in the first sleeve. The first sleeve is sleeved in the third sleeve. The first sleeve is connected to the first ejector rod. The right end of the second ejector rod is sequentially sleeved in the second sleeve and the first sleeve from left to right. A first set of teeth is arranged at the left end of the first sleeve. A second set of teeth is arranged at the right end of the second sleeve. The first set of teeth cooperates with the second set of teeth. The telescopic spring is sleeved on the second ejector rod;

[0026] The second ejector rod is inserted into or disengaged from the limiting hole.

[0027] Furthermore, one or more resistance springs are provided;

[0028] Correspondingly, one or more limiting holes are provided, and one or more positioning buttons are provided.

[0029] Furthermore, a fourth fixed pulley and a fifth fixed pulley are further included. The fourth fixed pulley and the fifth fixed pulley are symmetrically installed on the inner bottom of the support frame;

[0030] Both ends of the pulling rope bypass the second fixed pulley and the third fixed pulley and then respectively bypass the fourth fixed pulley and the fifth fixed pulley and then extend out of the support frame.

[0031] Furthermore, an even number of movable pulleys are provided, and an odd number of first fixed pulleys are provided.

[0032] Furthermore, four fixed pulleys are provided, and three first movable pulleys are provided.

[0033] Furthermore, the stretching mechanism includes a first support arm and a second support arm;

[0034] Both the first support arm and the second support arm are installed on the support frame through an adjustment mechanism;

[0035] The adjusting mechanism includes a positioning seat, a rotating seat and a rotating block. The positioning seat is installed on the side surface of the support frame. The rotating seat is rotatably installed on the positioning seat through a bearing. A first positioning hole is provided on the positioning seat, and a first pin is provided on the rotating seat. The first pin is inserted into or disengaged from the first positioning hole by plugging and unplugging. The rotating block is installed on the rotating seat, and the first support arm or the second support arm is installed on the rotating block. A positioning plate is provided on the rotating block, and a second positioning hole is provided on the positioning plate. A second positioning pin is installed on the rotating seat, and the second positioning pin is inserted into or disengaged from the second positioning hole by plugging and unplugging.

[0036] An installation groove is provided on the rotating block, and a first wire winding pulley is installed in the installation groove.

[0037] Threading holes are provided inside the first support arm and the second support arm. The outer ends of the first support arm and the second support arm are rotatably installed with second wire winding pulleys through bearings. The outer end of the pull rope passes around the first wire winding pulley and then penetrates into the threading hole, and then passes around the second wire winding pulley and extends out.

[0038] Furthermore, the support mechanism further includes a first support leg and a second support leg. The first support leg and the second support leg are symmetrically installed at the bottom of the support frame in a detachable and rotatably adjustable manner.

[0039] Furthermore, both the first support leg and the second support leg are one of outward-expanded support legs or parallel support legs.

[0040] Furthermore, the support mechanism further includes a counterweight base, and the counterweight base is detachably and reversibly installed at the bottom of the support frame.

[0041] Furthermore, a plurality of hanging holes are provided, and correspondingly, a plurality of hooks are provided.

[0042] In the utility model, by providing hanging holes on the back of the support frame and cooperating with hooks installed on the wall, the fitness equipment can be hung on the wall. During installation, the height can be determined according to one's own height and then installed, making the use more flexible and variable. At the same time, the resistance mechanism of the fitness equipment in this application is symmetrically arranged. The corresponding number of resistance springs is limited by the positioning button at the bottom, and the stable output of force is realized through the pulley with gradually changing diameter, meeting the strength training requirements. Description of the Drawings

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0044] Figure 1 Side view of the structure of a multi-functional resistance fitness device in a specific embodiment of the present invention;

[0045] Figure 2 For Figure 1 The first structural cross-sectional view of a multi-functional resistance fitness device as shown;

[0046] Figure 3 For Figure 1 、 Figure 2 The second structural cross-sectional view of a multi-functional resistance fitness device as shown;

[0047] Figure 4 For Figures 1 - 3 The three-dimensional structural schematic diagram of a multi-functional resistance fitness device as shown;

[0048] Figure 5 For Figure 4 The enlarged view of part A in

[0049] Figure 6 The structural schematic diagram of the positioning button.

[0050] Explanation of reference numerals: Support mechanism 1; Protective shell 11; First support leg 12; Second support leg 13; Support beam 14; Limit groove 15; Counterweight base 16; Support frame 17; Resistance mechanism 2; Positioning button 21; First sleeve 211; First tooth 2111; Second sleeve 212; Second tooth 2121; Collar 2122; First ejector rod 213; Second ejector rod 214; Third sleeve 215; Telescopic spring 216; Positioning rod 2151; Pull rope 201; Movable pulley 202; First fixed pulley 203; Second fixed pulley 204; Third fixed pulley 205; Spring resistance member 206; Upper top plate 2061; Resistance spring 2062; Lower bottom plate 2063; Positioning button 21; First sliding rod 207; First sliding sleeve 208; Second sliding rod 209; Second sliding sleeve 210; Holding part 2011; Fourth fixed pulley 2012; Fifth fixed pulley 2013; Tension mechanism 3; First support arm 31; The second support arm 32; Adjusting mechanism 4; Positioning seat 41; Rotating seat 42; Rotating seat 43; First positioning hole 411; First pin 421; Positioning plate 431; Second positioning hole 432; Second positioning pin 422. Detailed implementation manners

[0051] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0052] In a specific embodiment of the present utility model, see Figures 1 - 6 , a multi-functional resistance fitness device, comprising: a support mechanism 1;

[0053] It further includes a resistance mechanism 2 and a stretching mechanism 3. The resistance mechanism 2 and the stretching mechanism 3 are both installed on the support mechanism 1, and the stretching mechanism 3 is connected to the resistance mechanism 2;

[0054] The support mechanism 1 includes a support frame 17 and a protective shell 11. The support frame 17 is installed on a wall, and the protective shell is installed on the support frame 17. The support frame is used to provide support for the entire device, and the protective shell 11 is used to protect the internal resistance mechanism 2 and at the same time provide support for the stretching mechanism 3;

[0055] A hanging hole is provided on the back of the support frame 17, and a hanging hook is installed in the hanging hole. The hanging hook is installed on the wall through a bolt; a plurality of hanging holes are provided, and correspondingly, a plurality of hanging hooks are provided; the protective shell is installed on the wall and can be installed on the wall by screws. When installing, it is installed at a suitable height according to the height requirement, with higher flexibility and more convenient use;

[0056] The resistance mechanism 2 is installed on the support frame, and the resistance mechanism is located in the protection space formed by the protective shell and the support frame;

[0057] The resistance mechanism 2 includes a pull rope 201, a movable pulley 202, a first fixed pulley 203, a second fixed pulley 204, a third fixed pulley 205, a spring resistance member 206, a first sliding rod 207, a first sliding sleeve 208, a second sliding rod 209 and a second sliding sleeve 210;

[0058] A support beam 14 is arranged inside the support frame 17. The tops of the first sliding rod 207 and the second sliding rod 209 are installed on the support beam 14, and the bottoms are installed on the inner bottom of the support frame 17;

[0059] The first sliding sleeve 208 is sleeved on the first sliding rod 207, and the second sliding sleeve 210 is sleeved on the second sliding rod 209;

[0060] Both ends of the spring resistance member 26 are connected to the first sliding sleeve 208 and the second sliding sleeve 210, and the bottom end of the spring resistance member 26 is connected to the inner bottom of the support frame 11;

[0061] The movable pulley 202 is installed at the top of the spring resistance member 26, the first fixed pulley 203 is installed at the bottom of the support beam 14, the second fixed pulley 204 is installed on the inner top of the support frame 11, and the third fixed pulley 205 is installed on the inner top of the support frame 11;

[0062] Since the resistance spring outputs an increasing force as its length increases, in order to make the output force stable and constant under the same state, the second fixed pulley 204 and the third fixed pulley 205 are set as fixed pulleys with a gradually changing diameter. For details, see the attached drawings. The second fixed pulley 204 and the third fixed pulley 205 are symmetrically installed on the inner top of the support frame 11;

[0063] The pulling rope 201 is wound around the second fixed pulley 204, the movable pulley 202, the first fixed pulley 203 and the third fixed pulley 205 in sequence from left to right, and both ends of the pulling rope 201 extend out of the support frame 11;

[0064] Both ends of the pulling rope 201 are provided with holding portions 2011;

[0065] Both ends of the pulling rope 201 can be trained by stretching. In order to ensure the stability of the force output, the second fixed pulley 204 and the third fixed pulley 205 are provided. The second fixed pulley 204 and the third fixed pulley 205 are symmetrically installed inside the support frame 11, so that the pulling rope 201 has two output directions to meet the use requirements.

[0066] In a specific embodiment of the present invention, see Figures 1 - 6 , further including a fourth fixed pulley 2012 and a fifth fixed pulley 2013, and the fourth fixed pulley 2012 and the fifth fixed pulley 2013 are symmetrically installed on the inner bottom of the support frame 11;

[0067] After installing the fourth fixed pulley 2012 and the fifth fixed pulley 2013, the pulling rope comes out from the second fixed pulley 204 and the third fixed pulley 205 and then bypasses the fourth fixed pulley 2012 and the fifth fixed pulley 2013 respectively and then outputs outward, so that the force on the pulling rope 201 ensures that the force output at both ends of the pulling rope 201 is smoother and more stable;

[0068] Both ends of the pulling rope 201 bypass the second fixed pulley 204 and the third fixed pulley 205 and then bypass the fourth fixed pulley 2012 and the fifth fixed pulley 2013 respectively and then extend out of the support frame 11.

[0069] In a specific embodiment of the present invention, seeFigures 1 - 6 The spring resistance member 206 includes an upper top plate 2061, a resistance spring 2062, a lower bottom plate 2063 and a positioning button 21;

[0070] The movable pulley 202 is installed above the upper top plate;

[0071] Both sides of the upper top plate 2061 and the lower bottom plate 2062 are respectively installed on the first sliding sleeve 208 and the second sliding sleeve 210;

[0072] The top of the resistance spring 2062 is detachably and fixedly installed on the upper top plate 2061;

[0073] The bottom end of the resistance spring 2062 is connected with a limiting plate 2065. A limiting groove 15 is arranged on the inner bottom of the support frame 11. Limiting holes 2066 are arranged on the limiting plate 2065, the limiting groove 15 and the lower bottom plate 2063. The limiting plate 2065 is clamped inside the limiting groove 15;

[0074] The positioning button 21 includes a first sleeve 211, a second sleeve 212, a first ejector rod 213, a second ejector rod 214, a third sleeve 215 and a telescopic spring 216. The third sleeve is installed on the protective shell. Positioning rods 2151 are symmetrically arranged on the third sleeve 215. Collar rings 2122 are symmetrically arranged on the second sleeve 212. The collar rings 2122 are slidably sleeved on the positioning rods 2151. The left end of the first ejector rod 213 is sleeved inside the first sleeve 211. The first sleeve 211 is sleeved inside the third sleeve 215. The first sleeve 211 is connected with the first ejector rod 213. The right end of the second ejector rod 214 is sequentially sleeved inside the second sleeve 212 and the first sleeve 211 from left to right. A first locking tooth 2111 is arranged at the left end of the first sleeve 211. A second locking tooth 2121 is arranged at the right end of the second sleeve 212. The first locking tooth 2111 cooperates with the second locking tooth 2121. The telescopic spring 216 is sleeved on the second ejector rod 214; During operation, by pressing the first ejector rod 213, the second ejector rod 214 is extended or retracted;

[0075] The second ejector rod 214 is inserted into or disengaged from the limiting hole 2066;

[0076] The bottom end of the resistance spring 2062 is positioned through the positioning button to realize the stretching of the corresponding resistance spring, so as to meet the strength training requirements;

[0077] The positioning button adopts a single-rod plug-in push-push structure. When pressed for the first time, the positioning post for positioning extends and inserts into the limit hole. At this time, when pulling the pull rope, resistance will be generated, thus achieving the purpose of training; when pressed for the second time, the positioning post for positioning leaves the limit hole, making the bottom end of the spring in a free state.

[0078] In a specific embodiment of the present invention, as shown in Figures 1 - 6 , one or more resistance springs 2062 are provided to meet different force output requirements;

[0079] Correspondingly, one or more limit holes 2066 are provided, and one or more positioning buttons are provided. One positioning button corresponds to one limit hole and one resistance spring;

[0080] By setting the number, the output of different magnitudes of force can be satisfied, meeting the force requirements under different conditions. When a certain amount of force is needed, press the corresponding number of buttons.

[0081] Figures 1 - 6 In a specific embodiment of the present invention, as shown in Figures 1 - 6 , an even number of movable pulleys 202 are provided, and an odd number of first fixed pulleys 203 are provided. The number of movable pulleys and the number of first fixed pulleys are determined according to requirements such as the magnitude of the force set and stability.

[0082] Specifically, three first fixed pulleys are provided, and four movable pulleys are provided. By setting three first fixed pulleys and four movable pulleys, the resistance can be effectively reduced to one-eighth.

[0083] In a specific embodiment of the present invention, as shown in Figures 1 - 6 , the stretching mechanism 3 includes a first support arm 31 and a second support arm 32. The first support arm 31 and the second support arm 32 provide support for the holding part 2011, and at the same time provide support for both ends of the pull rope 201, ensuring a smoother output of force;

[0084] The first support arm 31 and the second support arm 32 are located on both sides of the upper part of the support frame 17;

[0085] The first support arm 31 and the second support arm 32 are both installed on the support frame 11 through an adjustment mechanism and can be adjusted accordingly according to height requirements and width requirements; pulley assemblies are provided at the connection points of the first support arm 31 and the second support arm 32 with the support frame 11 to ensure that the pull rope 201 is smoother during the process of being pulled out and retracted, ensuring the normal use of the pull rope;

[0086] The first support arm 31 and the second support arm 32 are both symmetrically installed on the support frame 17 through an adjustment mechanism 4;

[0087] The adjusting mechanism 4 includes a positioning seat 41, a rotating seat 42 and a rotating base 43. The positioning seat 41 is installed on the side of the support frame 17. The rotating seat 42 is rotatably installed on the positioning seat 41 through a bearing. A first positioning hole 411 is provided on the positioning seat 41, and a first plug pin 421 is provided on the rotating seat 42. The first plug pin 421 is inserted into or disengaged from the first positioning hole 411 by plugging and unplugging; the rotating base 43 is installed on the rotating seat 42, the first support arm 31 or the second support arm 32 is installed on the rotating base 43. A positioning plate 431 is provided on the rotating base 43, a second positioning hole 432 is provided on the positioning plate, and a second positioning plug pin 422 is installed on the rotating seat 42. The second positioning plug pin is inserted into or disengaged from the second positioning hole by plugging and unplugging;

[0088] An installation groove 433 is provided on the rotating base 43, and a first wire winding pulley 434 is installed in the installation groove 433;

[0089] Threading holes are provided inside the first support arm 31 and the second support arm 32. The outer ends of the first support arm and the second support arm are rotatably installed with second wire winding pulleys 435 through bearings. The outer end of the pull rope passes around the first wire winding pulley and then penetrates into the threading hole, and then passes around the second wire winding pulley and extends out;

[0090] The first support arm 31 and the second support arm 32 lift the two ends of the pull rope 201, which is more in line with the human-machine function; at the same time, the first support arm 31 and the second support arm 32 can rotate through a full angle and can be adjusted accordingly according to actual needs, making it flexible to use.

[0091] In a specific embodiment of the present invention, see Figures 1 - 6 , for more convenient and flexible use, the support mechanism 1 further includes a first support leg 12 and a second support leg 13. The first support leg 12 and the second support leg 13 are symmetrically installed at the bottom of the support frame 17 in a detachable and rotatable adjustable manner. When it needs to be used on the ground, the support legs can be opened to both sides to support on the ground to improve stability.

[0092] In a specific embodiment of the present invention, see Figures 1 - 6 , both the first support leg 12 and the second support leg 13 are outward-expanded support legs, which are more stable and reliable;

[0093] They can also be parallel support legs.

[0094] In a specific embodiment of the present invention, see Figures 1 - 6, to improve the overall stability of the fitness device, the support mechanism 1 further includes a counterweight base 16, and the counterweight base 16 is detachably and reversibly installed at the bottom of the support frame 17;

[0095] The counterweight base, the first support leg and the second support leg together form a support base.

[0096] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional resistance fitness device, comprising: Support mechanism; It is characterized in that: it also includes a resistance mechanism and a stretching mechanism, the resistance mechanism and the stretching mechanism are both installed on the supporting mechanism, and the stretching mechanism is connected to the resistance mechanism; The support mechanism includes a support frame and a protective shell, wherein the support frame is installed on a wall, and the protective shell is installed on the support frame; A hanging hole is provided on the back of the support frame, a hook is installed in the hanging hole, and the hook is installed on the wall by bolts; The resistance mechanism is installed on the support frame, and the resistance mechanism is located in a protection space formed by the protection shell and the support frame; The resistance mechanism includes a pull rope, a movable pulley, a first fixed pulley, a second fixed pulley, a third fixed pulley, a spring resistance member, a first sliding rod, a first sliding sleeve, a second sliding rod and a second sliding sleeve; The support frame is provided with a support beam, the top ends of the first slide bar and the second slide bar are mounted on the support beam, and the bottom ends are mounted on the inner bottom of the support frame; The first sliding sleeve is mounted on the first sliding rod, and the second sliding sleeve is mounted on the second sliding rod; The two ends of the spring resistance member are connected to the first sliding sleeve and the second sliding sleeve, and the bottom end of the spring resistance member is connected to the inner bottom of the support frame; The movable pulley is installed on the top of the spring resistance member, the first fixed pulley is installed on the bottom of the support beam, the second fixed pulley is installed on the top of the support frame, and the third fixed pulley is installed on the top of the support frame; The second fixed pulley and the third fixed pulley are fixed pulleys with gradually changing diameters, and the second fixed pulley and the third fixed pulley are symmetrically mounted on the inner top of the support frame; The pull rope is wound around the second fixed pulley, the movable pulley, the first fixed pulley and the third fixed pulley in sequence from left to right, and both ends of the pull rope extend out of the support frame; It also includes a fourth fixed pulley and a fifth fixed pulley, wherein the fourth fixed pulley and the fifth fixed pulley are symmetrically mounted on the inner bottom of the support frame; The two ends of the pull rope pass around the second fixed pulley and the third fixed pulley, and then pass around the fourth fixed pulley and the fifth fixed pulley respectively, and then extend out of the support frame respectively; Grip parts are installed at both ends of the pull rope.

2. A multifunctional resistance fitness device as claimed in claim 1, characterized in that: The spring resistance member comprises an upper top plate, a resistance spring, a lower bottom plate and a positioning button; The movable pulley is installed above the upper top plate; Both sides of the upper top plate and the lower bottom plate are respectively mounted on the first sliding sleeve and the second sliding sleeve; The top of the resistance spring is detachably fixedly mounted on the upper top plate; The bottom end of the resistance spring is connected to a limit plate, a limit slot is arranged on the inner bottom of the support frame, and limit holes are arranged on the limit plate, the limit slot and the lower bottom plate, and the limit plate is clamped on the inner side of the limit slot; The positioning button includes a first sleeve, a first push rod, a second push rod, a second sleeve, a third sleeve and a telescopic spring, the third sleeve is installed on the protective shell, the third sleeve is symmetrically provided with a positioning rod, the second sleeve is symmetrically provided with a collar, the collar is slidably sleeved on the positioning rod, the left end of the first push rod is sleeved in the first sleeve, the first sleeve is sleeved in the third sleeve, the first sleeve is connected to the first push rod, the right end of the second push rod is sleeved in the second sleeve and the first sleeve from left to right in sequence, the left end of the first sleeve is provided with a first latch tooth, the right end of the second sleeve is provided with a second latch tooth, the first latch tooth cooperates with the second latch tooth, and the telescopic spring is sleeved on the second push rod; The second push rod is inserted into or separated from the limiting hole.

3. A multifunctional resistance fitness device as claimed in claim 2, characterized in that: The resistance spring is provided with one or more; Correspondingly, one or more limiting holes are provided, and one or more positioning buttons are provided.

4. A multifunctional resistance fitness device as claimed in claim 1, characterized in that: The movable pulleys are provided in an even number, and the first fixed pulleys are provided in an odd number.

5. The multifunctional resistance fitness device according to claim 1, characterized in that: The number of the first fixed pulleys is three, and the number of the movable pulleys is four.

6. A multifunctional resistance fitness device as claimed in claim 1, characterized in that: The stretching mechanism comprises a first supporting arm and a second supporting arm; The first support arm and the second support arm are located on both sides of the upper part of the support frame; The first support arm and the second support arm are both mounted on the support frame through an adjustment mechanism; The adjustment mechanism comprises a positioning seat, a rotating seat and a rotating seat, the positioning seat is mounted on the side of the supporting frame, the rotating seat is rotatably mounted on the positioning seat through a bearing, a first positioning hole is provided on the positioning seat, a first latch is provided on the rotating seat, and the first latch is inserted into or separated from the first positioning hole by plugging and pulling; the rotating seat is mounted on the rotating seat, the first supporting arm or the second supporting arm is mounted on the rotating seat, a positioning plate is provided on the rotating seat, a second positioning hole is provided on the positioning plate, and a second positioning latch is installed on the rotating seat, and the second positioning latch is inserted into or separated from the second positioning hole by plugging and pulling; The rotating seat is provided with a mounting groove, and the first winding pulley is installed in the mounting groove; The first support arm and the second support arm are provided with threading holes inside, and the outer ends of the first support arm and the second support arm are rotatably mounted with second winding pulleys through bearings. The outer end of the pull rope passes around the first winding pulley and then passes into the threading hole, and then passes around the second winding pulley and extends out.

7. The multifunctional resistance fitness device according to claim 1, characterized in that: The support mechanism further comprises a first support leg and a second support leg, wherein the first support leg and the second support leg are detachably and rotatably adjustable and symmetrically installed at the bottom of the support frame.

8. A multifunctional resistance fitness device as claimed in claim 7, characterized in that: The first supporting leg and the second supporting leg are both outward-expanding supporting legs or parallel supporting legs.

9. The multifunctional resistance fitness device according to claim 1, characterized in that: The support mechanism also includes a counterweight base, and the counterweight base is detachably and flippably installed at the bottom of the support frame.

10. The multifunctional resistance fitness device according to claim 1, characterized in that: There are a plurality of the hanging holes, and correspondingly, there are a plurality of the hooks.

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