Shoulder swinging and chest clamping training device

By integrating shoulder-swinging and chest-clamping training devices and utilizing amplitude adjustment and linkage components, the problems of high cost and non-adjustable amplitude of existing training equipment have been solved, enabling multi-functional training on a single device, reducing costs and improving training flexibility.

CN223831688UActive Publication Date: 2026-01-27TIANJIN AOLIN
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Patent Information

Application Number
CN202423273757.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-27
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing shoulder swing and chest press training equipment requires two devices, resulting in high procurement and transportation costs, large footprint, and no adjustable training range.

Method used

Design an integrated shoulder swing and chest clamp training device. An amplitude adjustment component is set between the rocker arm assembly and the rotating assembly. The training amplitude is adjusted by inserting the spindle of the quick-connect component into the limiting hole of the adjustment plate. The linkage component realizes the linkage of the rocker arm assembly, the rotating assembly and the counterweight assembly.

Benefits of technology

It enables shoulder-swinging and chest-clamping exercises to be performed on a single device, reducing procurement and transportation costs. Furthermore, the training range can be flexibly adjusted by adjusting the mandrel insertion limit hole to meet different training needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a shoulder swinging and chest clamping training device which comprises a fixedly-arranged vertical beam, a main frame is arranged on the vertical beam through an installation assembly, rotating assemblies are symmetrically arranged on the two sides of the top of the main frame, and counter weight assemblies are symmetrically and rotationally arranged on the two sides of the bottom of the main frame. A rocker arm assembly is arranged at the end, away from the vertical beam, of the rotating assembly, and an amplitude adjusting assembly is arranged between the rocker arm assembly and the rotating assembly and used for achieving the training amplitude during shoulder swinging training and chest clamping training. A linkage assembly is arranged between the rotating assembly and the counterweight assembly and used for achieving linkage among the rocker arm assembly, the rotating assembly and the counterweight assembly. According to the shoulder swinging and chest clamping training device, when the two rocker arm assemblies are used for training, the rocker arm assemblies stretch outwards to achieve shoulder swinging training, the rocker arm assemblies retract inwards to achieve chest clamping training, the function of integrating the shoulder swinging training and the chest clamping training is achieved, and the adoption cost, the production cost and the transportation cost are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a shoulder swinging and chest clamping training device. Background Technology

[0002] Existing shoulder-swinging and chest-flipping training devices are typically separate equipment. When performing these exercises, two separate devices are required, resulting in high procurement and transportation costs, large footprint, and no adjustable range of motion. Therefore, this application proposes a shoulder-swinging and chest-flipping training device that integrates both exercises onto a single device, reducing procurement and transportation costs. Furthermore, the range of motion for both exercises can be adjusted by inserting an adjusting spindle into different limit holes on the adjusting plate, making training more convenient for users. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a shoulder-swinging and chest-clamping training device.

[0004] This utility model provides a shoulder-swinging and chest-flipping training device, including a fixed upright beam. A main frame is mounted on the upright beam via an installation assembly. Rotating components are symmetrically arranged on both sides of the top of the main frame, and counterweight components are symmetrically and rotatably arranged on both sides of the bottom of the main frame. A rocker arm assembly is arranged at the end of the rotating component away from the upright beam. An amplitude adjustment assembly is provided between the rocker arm assembly and the rotating component for adjusting the training amplitude during shoulder-swinging and chest-flipping exercises. A linkage assembly is provided between the rotating component and the counterweight assembly for realizing the linkage between the rocker arm assembly, the rotating component, and the counterweight assembly.

[0005] Furthermore, the rotating assembly includes a bearing housing fixedly disposed on one side of the top of the main frame, a bearing fixedly disposed inside the bearing housing, a rotating shaft disposed through the inside of the bearing, and the rotating shaft being fixedly connected to the inner ring of the bearing.

[0006] Furthermore, the amplitude adjustment assembly includes an adjustment dial, a connecting component, a quick-release component, and a guide component; wherein,

[0007] The adjusting disc is fixedly mounted on the rotating shaft on the side of the bearing seat away from the vertical beam. The inner side of the arc-shaped edge of the adjusting disc is provided with a plurality of limiting holes distributed along the arc. Annular spacers are fitted on both sides of the rotating shaft on the circumferential outer side of the adjusting disc.

[0008] The connecting component, located on the side of the rotating shaft away from the bearing seat of the adjusting disc, includes symmetrically rotatably fitted copper sleeves on the outer circumference of the rotating shaft, and mounting sleeves fixedly fitted on the outer circumference of the two copper sleeves; a flat washer is fixedly provided by bolts at the end of the rotating shaft located away from the adjusting disc of the copper sleeves to limit the copper sleeves in the axial direction; a mounting support plate is fixedly provided on the outer circumference of the mounting sleeve;

[0009] The quick-release component, mounted on the mounting plate, includes a pin sleeve fixed to the mounting plate corresponding to the limiting hole; a spindle is disposed through the interior of the pin sleeve; an annular boss is fixedly disposed on the outer circumferential side of one end of the spindle, and a pin nut is slidably sleeved on the outer circumferential side of the other end; the outer circumferential side of the pin nut is internally threaded to the end of the pin sleeve away from the adjusting disc; a spring is disposed inside the pin sleeve between the pin nut and the annular boss, and the spring is sleeved on the outer circumferential side of the spindle; a handle is fixedly disposed on the end of the spindle away from the spring at the end of the pin nut; one end of the spindle protruding from the pin sleeve passes into the interior of different limiting holes for adjusting the lever arm angle of the rocker arm assembly.

[0010] The guide component is disposed between the mounting plate and the adjusting plate, and is used to guide and limit the movement trajectory of the fast-release component; the guide component includes a through arc-shaped guide strip disposed on the adjusting plate below the limiting hole; a guide rod is fixedly disposed on the mounting plate corresponding to the arc-shaped guide strip, one end of the guide rod is fixedly connected to the mounting plate, and the other end passes through the arc-shaped guide strip.

[0011] Furthermore, the linkage component includes a linkage plate fixedly disposed on the rotating shaft at the end of the bearing seat away from the adjusting disc, and a connecting tube rotatably disposed at the end of the linkage plate away from the rotating shaft, the connecting tube being rotatably connected to the counterweight component.

[0012] Furthermore, the counterweight assembly includes a load-bearing tube rotatably disposed on one side of the bottom of the main frame, a counterweight support tube fixedly disposed at the end of the load-bearing tube away from the main frame, the counterweight support tube being perpendicular to the load-bearing tube; a counterweight plate is disposed on the counterweight support tube; the load-bearing tube is hinged to the corresponding connecting round tube.

[0013] Furthermore, the rocker arm assembly includes a rear arm square tube fixedly disposed on the side of the mounting sleeve away from the mounting support plate, and a front arm round tube rotatably disposed at the end of the rear arm square tube away from the mounting sleeve.

[0014] Furthermore, the mounting assembly includes a connecting plate fixedly mounted on the main frame. The connecting plate has two through holes distributed vertically, through which bolts are installed, and nuts are provided to match the bolts.

[0015] Furthermore, the upright beam is provided with mounting holes corresponding to the through holes, which are used to cooperate with the bolts and nuts to fix the main frame on the upright beam.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The present invention relates to a shoulder-swinging and chest-clamping training device. By setting a quick-pin component on the mounting sleeve, which is connected to the rocker arm assembly, the lever arm angle of the rocker arm assembly can be adjusted by inserting the mandrel on the quick-pin component into different limiting holes on the adjustment plate, thereby adjusting the training range of shoulder-swinging and chest-clamping training.

[0018] When training with two sets of rocker arm assemblies, the rocker arm assemblies extend outward for shoulder swing training and retract inward for chest clamp training. This device integrates shoulder swing training and chest clamp training, reducing adoption, production and transportation costs.

[0019] It should be understood that the content described in the utility model description section is not intended to limit the key or important features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model.

[0020] Other features of this invention will become readily apparent from the following description. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 A schematic diagram of the shoulder-swinging and chest-pressing training device after assembly with the upright beam;

[0023] Figure 2 A schematic diagram of a shoulder-swinging and chest-pressing training device;

[0024] Figure 3 This is a schematic diagram of the disassembled structure of the shoulder-swinging and chest-pressing training device and the upright beam.

[0025] Figure 4 This is a structural diagram of a fast-moving consumer goods component;

[0026] Figure 5 This is a cross-sectional view of a fast-moving consumer goods component;

[0027] Figure 6This is a schematic diagram of the assembled amplitude adjustment component and rotation component;

[0028] Figure 7 This is a cross-sectional view of the amplitude adjustment component and the rotation component after assembly.

[0029] Numbered in the diagram: 1. Upright beam; 2. Main frame; 3. Connecting upright plate; 4. Through hole; 5. Bolt; 6. Nut; 7. Mounting hole; 8. Rotating assembly; 81. Bearing seat; 82. Bearing; 83. Rotating shaft; 9. Rocker arm assembly; 91. Rear arm square tube; 92. Front arm round tube; 10. Amplitude adjustment assembly; 101. Adjustment disc; 102. Limiting hole; 103. Annular spacer; 104. Copper sleeve; 105. Mounting device. 106. Sleeve; 107. Flat washer; 108. Mounting support plate; 109. Pin sleeve; 1000. Mandrel; 1011. Annular boss; 1012. Pin nut; 1013. Spring; 1014. Handle; 1015. Arc-shaped guide bar; 1016. Guide rod; 11. Linkage assembly; 111. Linkage plate; 112. Connecting round pipe; 12. Counterweight assembly; 121. Load-bearing pipe; 122. Counterweight support pipe. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0031] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Please refer to Figures 1-7 The present invention provides a shoulder swing and chest clamp training device that integrates chest clamp training and shoulder swing training. The amplitude adjustment component 10 is used to adjust the amplitude of the shoulder swing and chest clamp training.

[0033] Specifically, it includes a fixed upright beam 1, on which a main frame 2 is mounted via an installation component. The entire device is suspended on the upright beam 1, meaning it does not contact the ground.

[0034] In a preferred embodiment, the mounting assembly includes a connecting plate 3 fixedly mounted on the main frame 2. The connecting plate 3 is located in the middle of the main frame 2 and is connected to the main frame 2 by welding to improve the stability of the structure. The connecting plate 3 is provided with two through holes 4 distributed vertically. Bolts 5 are installed through the through holes 4, and nuts 6 are provided to match the bolts 5. The nuts 6 are wing nuts or handle nuts for easy assembly.

[0035] In a preferred embodiment, the upright beam 1 is provided with mounting holes 7 corresponding to the through holes, which are used to cooperate with bolts 5 and nuts 6 to fix the main frame 2 on the upright beam 1.

[0036] Specifically, the connecting plate 3 is attached to the upright beam 1, with the mounting hole 7 corresponding to the through hole 4. After the bolt 5 is passed through the through hole 4 and the mounting hole 7 in sequence, it is locked and fixed by the corresponding nut 6, thus completing the installation of the main frame 2, that is, the entire device.

[0037] Rotating components 8 are symmetrically arranged on both sides of the top of the main frame 2, and counterweight components 12 are symmetrically arranged on both sides of the bottom of the main frame 2.

[0038] In a preferred embodiment, the rotating assembly 8 includes a bearing seat 81 fixedly disposed on one side of the top of the main frame 2, a bearing 82 fixedly disposed inside the bearing seat 81, and a rotating shaft 83 disposed through the inside of the bearing 82, the rotating shaft 83 being fixedly connected to the inner ring transmission surface of the bearing 82.

[0039] A rocker arm assembly 9 is provided at the end of the rotating component 8 away from the upright beam 1. An amplitude adjustment component 10 is provided between the rocker arm assembly 9 and the rotating component 8 to realize the training amplitude during shoulder swing training and chest clamp training.

[0040] In a preferred embodiment, the amplitude adjustment assembly 10 includes an adjustment disk 101, a connecting component, a quick-release component, and a guide component; wherein,

[0041] The adjusting disc 101 is fan-shaped and is fixedly mounted on the rotating shaft 83 on the side of the bearing seat 81 away from the vertical beam 1. The adjusting disc 101 and the rotating shaft 83 are connected and fixed by welding. Multiple limiting holes 102 distributed along the arc are provided on the inner side of the arc edge of the adjusting disc 101. Annular spacers 103 are sleeved on the outer circumferential side of the rotating shaft 83 and on both sides of the adjusting disc 101. The annular spacers 103 are used to separate the adjusting disc 101 from the copper sleeve 104 in the connecting component, and cooperate with the flat washer 106 to limit the copper sleeve 104. In addition, they can also protect the side of the adjusting disc 101.

[0042] The connecting component is located on the side of the adjusting plate 101 away from the bearing seat 81 on the rotating shaft 83. It includes a copper sleeve 104 symmetrically rotated and sleeved on the outer side of the rotating shaft 83. The copper sleeve 104 and the rotating shaft 83 are clearance fit, so that the copper sleeve 104 can rotate relative to the rotating shaft 83.

[0043] Two copper sleeves 104 are fixedly fitted with mounting sleeves 105 on their outer circumferential sides. The mounting sleeves 105 are used to connect the rocker arm assembly 9 and to install quick-connect parts.

[0044] A flat washer 106 is bolted to the end of the copper sleeve 104 away from the adjusting plate 101, which is used to limit the copper sleeve 104 in the axial direction and prevent the copper sleeve 104 from moving in the axial direction; a mounting support plate 107 is fixed to the outer circumferential direction of the mounting sleeve 105.

[0045] The quick-release component is mounted on the mounting plate 107 and includes a pin sleeve 108 fixed on the mounting plate 107 corresponding to the limiting hole 102. The axis of the pin sleeve 108 is perpendicular to the mounting plate 107. A spindle 109 is provided through the interior of the pin sleeve 108.

[0046] A ring boss 1010 is fixedly provided on the outer circumferential side of one end of the spindle 109. The outer diameter of the ring boss 1010 is smaller than the inner diameter of the pin sleeve 108. A pin nut 1011 is slidably sleeved on the outer circumferential side of the other end. The outer circumferential side of the pin nut 1011 is internally threaded to the end of the pin sleeve 108 away from the adjusting plate 101. That is, the pin nut 1011 is fixed inside the pin sleeve 108. The spindle 109 can slide inside the pin nut 1011 and the pin sleeve 108, so that the spindle 109 can pass through the pin sleeve 108 and be inserted into the corresponding limiting hole 102 to adjust the lever arm angle of the rocker arm assembly 9.

[0047] A spring 1012 is provided inside the pin sleeve 108 between the pin nut 1011 and the annular boss 1010. The spring 1012 is sleeved on the circumferential outer side of the spindle 109. A handle 1013 is fixedly provided at the end of the spindle 109 away from the pin nut 1011. The handle 1013 facilitates the quick insertion or pulling out of the limiting hole 102 of the spindle 109. The end of the spindle 109 that passes out of the pin sleeve 108 passes into the interior of different limiting holes 102 to adjust the lever arm angle of the rocker arm assembly 9.

[0048] A guide component is disposed between the mounting plate 107 and the adjusting plate 101 to guide and limit the movement trajectory of the fast-release component on the adjusting plate 101. The guide component includes a through arc-shaped guide strip 1014 disposed on the adjusting plate 101 below the limiting hole 102. A guide rod 1015 is fixedly disposed on the mounting plate 107 corresponding to the arc-shaped guide strip 1014. One end of the guide rod 1015 is fixedly connected to the mounting plate 107, and the other end passes through the arc-shaped guide strip 1014.

[0049] When the mounting plate 107 rotates, the guide rod 1015 moves along the arc inside the arc-shaped guide strip 1014, providing the direction of movement and limiting the rotation of the mounting plate 107.

[0050] A linkage component 11 is provided between the rotating component 8 and the counterweight component 12 to realize the linkage between the rocker arm component 7, the rotating component 8 and the counterweight component 12.

[0051] In a preferred embodiment, the linkage component 11 includes a linkage plate 111 fixedly disposed on the rotating shaft 83 at the end of the bearing seat 81 away from the adjusting plate 101. A connecting tube 112 is rotatably disposed at the end of the linkage plate 111 away from the rotating shaft 83, and the connecting tube 112 is rotatably connected to the counterweight component 12.

[0052] In a preferred embodiment, the counterweight assembly 12 includes a load-bearing tube 121 rotatably disposed on one side of the bottom of the main frame 2, and a counterweight support tube 122 fixedly disposed at the end of the load-bearing tube 121 away from the main frame 2. The counterweight support tube 122 is perpendicular to the load-bearing tube 121. A counterweight plate (not shown in the figure) is disposed on the counterweight support tube 122. The load-bearing tube 121 is hinged to the corresponding connecting round tube 112. The number of counterweight plates on the counterweight support tube 122 determines the intensity of the chest clamping and shoulder swinging exercises.

[0053] The axial direction of the rotating shaft of the load-bearing tube 121, the axial direction of the rotating shaft connecting both ends of the circular tube 112, and the axial direction of the rotating shaft at both ends of the linkage plate 111 are all parallel to the axial direction of the rotating shaft 83.

[0054] In a preferred embodiment, the rocker arm assembly 9 includes a rear arm square tube 91 fixedly disposed on the side of the mounting sleeve 105 away from the mounting support plate 107, and a forearm round tube 92 rotatably disposed at the end of the rear arm square tube 91 away from the mounting sleeve 105.

[0055] The working principle of this utility model:

[0056] Place the corresponding number of counterweight discs on the counterweight support tube 122 to adjust the training intensity; then pull the handle 1013 outward to pull the spindle 109 out of the limiting hole 102. The spring 1012 is compressed, and the rocker arm assembly 9 is rotated to drive the mounting sleeve 105, mounting support plate 107 and quick-pin assembly to rotate as a whole until the spindle 109 rotates to the corresponding limiting hole 102. Release the handle 1013, and the spindle 109 moves towards the limiting hole 102 under the action of the spring 1012, that is, it is inserted into the corresponding limiting hole 102. This completes the operation of adjusting the training amplitude. The closer the spindle 109 is to the limiting hole 102 on the side of the main frame 2, the greater the training amplitude, and vice versa.

[0057] When the two sets of rocker arm components 9 extend outward, it is a shoulder-swinging exercise; when they retract inward, it is a chest-clamping exercise. This integrates shoulder-swinging and chest-clamping exercises, and the method for adjusting the range of motion is simple, quick, and effective.

[0058] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A shoulder-swinging and chest-pressing training device, characterized in that, The device includes a fixed upright beam, on which a main frame is mounted via an installation assembly. Rotating components are symmetrically arranged on both sides of the top of the main frame, and counterweight components are symmetrically and rotatably mounted on both sides of the bottom of the main frame. A rocker arm assembly is located at the end of each rotating component away from the upright beam. An amplitude adjustment assembly is provided between the rocker arm assembly and the rotating component to adjust the training amplitude during shoulder-swinging and chest-flipping exercises. A linkage assembly is provided between the rotating component and the counterweight assembly to achieve linkage between the rocker arm assembly, the rotating component, and the counterweight assembly.

2. The shoulder-swinging and chest-clamping training device according to claim 1, characterized in that, The rotating assembly includes a bearing housing fixedly disposed on one side of the top of the main frame, a bearing fixedly disposed inside the bearing housing, a rotating shaft disposed through the inside of the bearing, and the rotating shaft being fixedly connected to the inner ring of the bearing.

3. The shoulder-swinging and chest-clamping training device according to claim 2, characterized in that, The amplitude adjustment assembly includes an adjustment dial, a connecting component, a quick-release component, and a guide component; wherein... The adjusting disc is fixedly mounted on the rotating shaft on the side of the bearing seat away from the vertical beam. The inner side of the arc-shaped edge of the adjusting disc is provided with a plurality of limiting holes distributed along the arc. Annular spacers are fitted on both sides of the rotating shaft on the circumferential outer side of the adjusting disc. The connecting component, located on the side of the rotating shaft away from the bearing seat of the adjusting disc, includes symmetrically rotatably fitted copper sleeves on the outer circumference of the rotating shaft, and mounting sleeves fixedly fitted on the outer circumference of the two copper sleeves; a flat washer is fixedly provided by bolts at the end of the rotating shaft located away from the adjusting disc of the copper sleeves to limit the copper sleeves in the axial direction; a mounting support plate is fixedly provided on the outer circumference of the mounting sleeve; The quick-release component, mounted on the mounting plate, includes a pin sleeve fixed to the mounting plate corresponding to the limiting hole; a spindle is disposed through the interior of the pin sleeve; an annular boss is fixedly disposed on the outer circumferential side of one end of the spindle, and a pin nut is slidably sleeved on the outer circumferential side of the other end; the outer circumferential side of the pin nut is internally threaded to the end of the pin sleeve away from the adjusting disc; a spring is disposed inside the pin sleeve between the pin nut and the annular boss, and the spring is sleeved on the outer circumferential side of the spindle; a handle is fixedly disposed on the end of the spindle away from the spring at the end of the pin nut; one end of the spindle protruding from the pin sleeve passes into the interior of different limiting holes for adjusting the lever arm angle of the rocker arm assembly. The guide component is disposed between the mounting plate and the adjusting plate, and is used to guide and limit the movement trajectory of the fast-release component; the guide component includes a through arc-shaped guide strip disposed on the adjusting plate below the limiting hole; a guide rod is fixedly disposed on the mounting plate corresponding to the arc-shaped guide strip, one end of the guide rod is fixedly connected to the mounting plate, and the other end passes through the arc-shaped guide strip.

4. The shoulder-swinging and chest-clamping training device according to claim 3, characterized in that, The linkage component includes a linkage plate fixedly mounted on the rotating shaft at the end of the bearing seat away from the adjusting disc. A connecting tube is rotatably mounted at the end of the linkage plate away from the rotating shaft, and the connecting tube is rotatably connected to the counterweight component.

5. The shoulder-swinging and chest-clamping training device according to claim 4, characterized in that, The counterweight assembly includes a load-bearing tube rotatably mounted on one side of the bottom of the main frame, a counterweight support tube fixedly mounted at the end of the load-bearing tube away from the main frame, and the counterweight support tube being perpendicular to the load-bearing tube; a counterweight plate is mounted on the counterweight support tube; and the load-bearing tube is hinged to the corresponding connecting round tube.

6. The shoulder-swinging and chest-clamping training device according to claim 3, characterized in that, The rocker arm assembly includes a rear arm square tube fixedly disposed on the side of the mounting sleeve away from the mounting support plate, and a front arm round tube rotatably disposed at the end of the rear arm square tube away from the mounting sleeve.

7. The shoulder-swinging and chest-clamping training device according to claim 1, characterized in that, The installation assembly includes a connecting plate fixedly mounted on the main frame. The connecting plate has two through holes distributed vertically, through which bolts are installed, and nuts are provided to match the bolts.

8. The shoulder-swinging and chest-clamping training device according to claim 7, characterized in that, The upright beam has mounting holes corresponding to the through holes, which are used to cooperate with the bolts and nuts to fix the main frame on the upright beam.