Shoulder pushing trainer with independent transmission structure

Abstract

The invention relates to the technical field of fitness equipment, in particular to a shoulder pushing trainer with an independent transmission structure, which comprises a main beam frame, a support beam and a main rotating shaft, the supporting beam is arranged on one side of the main beam frame and fixedly connected with the main beam frame. The main rotating shaft is rotationally arranged on the top side of the supporting beam; the shaft seats are fixedly arranged on the outer walls of the two ends of the main rotating shaft; the torsion spring rotating shaft is rotationally arranged in the shaft seat; the limiting mechanism is arranged between the torsion spring rotating shaft and the shaft seat, and the limiting mechanism plays a role in limiting rotation of the torsion spring rotating shaft; the push arm is fixedly arranged on the torsion spring rotating shaft; by improving the shoulder pushing trainer, the shoulder pushing trainer has the advantages that the design is reasonable, the equipment structure is simplified, the counterweight disc is convenient to mount and dismount, the training requirements of different users can be met, and the training diversity and adaptability are remarkably improved; therefore, the problems and defects in the prior art and equipment are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment technology, and more specifically, to a shoulder pusher with an independent transmission structure. Background Technology

[0002] Shoulder press machines are a widely used shoulder training device in the fitness equipment field. They are mainly used to train the deltoid muscles. By adjusting the grip width and training posture, users can achieve different targeted training effects, thereby enhancing muscle strength and endurance. These devices play an important role in both commercial gyms and home fitness settings because they can simulate natural pull-down movements, helping users to efficiently complete back training.

[0003] In existing technologies, shoulder press trainers typically employ a weight chamber structure to apply resistance. Specifically, users pull the weight blocks inside the chamber directly or indirectly via a pull rod, utilizing gravity to generate exercise resistance. This design relies on a traditional weight chamber mechanism, where the weight blocks are enclosed within the chamber and connected to the pull rod via steel cables or chains. When the user applies a pulling force, the weight blocks are lifted, providing an adjustable load. The advantage of this method is stable resistance that is easy to quantify, but it has significant limitations. For example, the weight chamber structure often results in bulky and heavy equipment, occupying considerable space and making it unsuitable for small gyms or home use. Furthermore, most existing shoulder press trainers employ a dual-side synchronous drive design, meaning that both arm bars or pull rods must move simultaneously, preventing independent single-hand or single-arm operation.

[0004] In view of this, we have studied and improved the existing problems to provide a shoulder pusher with an independent transmission structure. The aim of this technology is to solve the problems and improve its practical value. Summary of the Invention

[0005] The purpose of this invention is to provide a shoulder push trainer with an independent transmission structure to solve the problems and shortcomings mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a shoulder push training device with an independent transmission structure, which is achieved by the following specific technical means: A shoulder pusher with an independent transmission structure includes: a main beam frame, a support beam, a main rotating shaft, a bearing seat, a torsion spring rotating shaft, a limiting mechanism, a push arm, a counterweight beam, and a pull rod. The support beam is located on one side of the main beam frame and is fixedly connected to the main beam frame. The main rotating shaft is rotatably located on the top side of the support beam. The bearing seat is fixedly located on the outer walls of both ends of the main rotating shaft. The torsion spring rotating shaft is rotatably located inside the bearing seat. The limiting mechanism is located between the torsion spring rotating shaft and the bearing seat, and the limiting mechanism limits the rotation of the torsion spring rotating shaft. The push arm is fixedly located on the torsion spring rotating shaft. One end of the counterweight beam is rotatably located on the support beam. One end of the pull rod is rotatably located on the push arm, and the other end of the pull rod is rotatably located on the counterweight beam.

[0007] As a further optimization of this technical solution, the limiting mechanism of the shoulder pusher with independent transmission structure of the present invention includes an indexing pin and a limiting plate. The indexing pin is fixedly mounted on the shaft seat, and the bottom of the indexing pin passes through the shaft seat. The limiting plate is fixedly mounted on the torsion spring shaft, and a limiting hole is provided on the limiting plate, and the indexing pin can be inserted into the limiting hole.

[0008] As a further optimization of this technical solution, the indexing pin of the shoulder pusher with an independent transmission structure of the present invention includes a plunger sleeve, a retaining seat, a plunger head, a plug rod, a spring, and a handle. The plunger sleeve is fixedly mounted on the shaft seat; the retaining seat is integrally mounted on the top side of the plunger sleeve; the plunger head is slidably mounted in the retaining seat, and the retaining seat has a retaining groove, and the plunger head can engage with the retaining groove; the plug rod is fixedly mounted on the bottom of the plunger head, and the plug rod can be inserted into the limiting hole; the spring is sleeved on the plug rod, and the two ends of the spring abut against the plunger sleeve and the plug rod respectively; the handle is fixedly mounted on the plunger head.

[0009] As a further optimization of this technical solution, the shoulder pusher with an independent transmission structure of the present invention also includes a limiting plate. The limiting plate includes a fixed bracket, an upper plate, and a lower plate. One end of the fixed bracket is fixedly mounted on the outer wall of the main rotating shaft. The upper plate is fixedly mounted on the top side of the fixed bracket, and the push arm can abut against the upper plate. The lower plate is fixedly mounted on the bottom side of the fixed bracket, and the push arm can abut against the lower plate.

[0010] As a further optimization of this technical solution, the shoulder pusher with an independent transmission structure of the present invention has multiple limiting holes on the limiting plate, and the multiple limiting holes are evenly distributed.

[0011] As a further optimization of this technical solution, the shoulder push trainer with an independent transmission structure of the present invention also includes an impact beam. The impact beam is arranged on both sides of the main beam frame, and the two ends of the impact beam are respectively fixed on the main beam frame and the support beam. The impact beam can resist the counterweight beam.

[0012] As a further optimization of this technical solution, the shoulder push trainer with an independent transmission structure of the present invention also includes a backrest and a seat cushion, wherein the backrest is fixedly mounted on the main beam frame; and the seat cushion is fixedly mounted on the main beam frame in a slidable manner.

[0013] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. This invention achieves the counterweight function by setting a counterweight beam, connecting the counterweight beam and the push arm through a tie rod, and directly installing the counterweight plate on the counterweight beam. This eliminates the traditional counterweight bin structure, simplifies the equipment structure, reduces the equipment volume and floor space, and the counterweight beam is located at the bottom of the device, which facilitates the installation and disassembly of the counterweight plate, greatly improving the ease of operation.

[0014] 2. The push arm of this invention is mounted on the bearing seat via a torsion spring shaft. During the push arm movement, the elastic restoring force generated by the torsion spring forms a continuous and controllable training load, allowing the user to complete the push-pull action against resistance, thereby achieving progressive strength training and muscle endurance improvement. Furthermore, the two push arms work independently through their respective torsion spring shafts, supporting unilateral training and meeting the training needs of different users.

[0015] 3. The present invention sets a limiting mechanism between the torsion spring shaft and the push arm. Through the insertion and cooperation of the plug rod and the limiting hole, the rotation angle of the push arm is rigidly locked. Different rotation angles of the push arm can be fixed, thereby realizing the rapid switching of multiple training modes and significantly improving the diversity and adaptability of training.

[0016] 4. This invention improves the shoulder press trainer, which has the advantages of reasonable design, simplified equipment structure, convenient installation and disassembly of the counterweight plate, and can meet the training needs of different users, significantly improving training diversity and adaptability, thereby effectively solving the problems and shortcomings of existing technologies and equipment. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the limiting plate of the present invention; Figure 3 This is a schematic diagram of the structure at the bearing seat of the present invention; Figure 4 This is a schematic diagram of the structure of the limiting mechanism of the present invention; Figure 5 This is a cross-sectional view of the limiting mechanism of the present invention; Figure 6This is a schematic diagram of the structure of the plunger sleeve of the present invention.

[0018] In the diagram: 1. Main beam frame; 2. Support beam; 3. Main shaft; 4. Shaft seat; 5. Torsion spring shaft; 6. Limiting mechanism; 61. Indexing pin; 611. Piston sleeve; 612. Card seat; 613. Piston head; 614. Insert rod; 615. Spring; 616. Handle; 62. Limiting plate; 601. Limiting hole; 602. Card slot; 7. Push arm; 8. Counterweight beam; 9. Pull rod; 10. Limiting stop plate; 101. Fixed bracket; 102. Upper stop plate; 103. Lower stop plate; 11. Impact beam; 12. Backrest; 13. Seat cushion. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Please see Figures 1 to 6 The present invention provides a specific technical implementation scheme for a shoulder push trainer with an independent transmission structure: The shoulder pusher with an independent transmission structure includes: main beam frame 1, support beam 2, main rotating shaft 3, bearing seat 4, torsion spring rotating shaft 5, limiting mechanism 6, push arm 7, counterweight beam 8, pull rod 9, limiting stop plate 10, impact beam 11, backrest 12, and seat cushion 13.

[0021] The main beam 1 and the support beam 2 provide overall support. The support beam 2 is located on one side of the main beam 1 and is fixedly connected to the main beam 1 to form a portal frame support structure, ensuring the overall firmness and stability.

[0022] The main rotating shaft 3 is rotatably mounted on the top side of the support beam 2, enabling the axial rotation of the two push arms 7.

[0023] The bearing seat 4 is fixedly mounted on the outer wall at both ends of the main rotating shaft 3, and is used to install and fix the torsion spring rotating shaft 5.

[0024] The torsion spring shaft 5 is rotatably mounted inside the bearing seat 4. The torsion spring shaft 5 contains a torsion spring. During the movement of the push arm 7, the elastic restoring force generated by the torsion spring forms a continuous and controllable training load, allowing the user to complete the push and pull action against the resistance, thereby achieving progressive strength training and muscle endurance improvement.

[0025] A limiting mechanism 6 is disposed between the torsion spring shaft 5 and the bearing seat 4, and the limiting mechanism 6 limits the rotation of the torsion spring shaft 5. The limiting mechanism 6 includes an indexing pin 61 and a limiting plate 62. The indexing pin 61 includes a plunger sleeve 611, a retainer 612, a plunger head 613, a insertion rod 614, a spring 615, and a handle 616. The plunger sleeve 611 is fixedly disposed on the bearing seat 4. The retainer 612 is integrally disposed on the top side of the plunger sleeve 611. The plunger head 613 is slidably disposed in the retainer 612, and the retainer 612 has a retaining groove 602. When the plunger head 613 is inserted into the retainer 612, the plunger head 613 can engage with the retaining groove 602. After the plunger head 613 is pulled out of the retainer 612, it can be rotated to the locked position to prevent accidental insertion. At this time, the plunger head 613 cannot be inserted into the retainer 612. The insertion rod 614... 14 is fixedly installed at the bottom of the plunger head 613; spring 615 is sleeved on the insertion rod 614, and the two ends of spring 615 abut against the plunger sleeve 611 and the insertion rod 614 respectively. Spring 615 provides elastic support for insertion rod 614, realizing automatic rebound of insertion rod 614; limiting plate 62 is fixedly installed on torsion spring shaft 5, and multiple limiting holes 601 are provided on limiting plate 62. Multiple limiting holes 601 are evenly distributed, and insertion rod 614 can be inserted into limiting hole 601. Through the insertion and cooperation of insertion rod 614 and limiting hole 601, the rotation angle of push arm 7 is rigidly locked, and different rotation angles of push arm 7 can be fixed, thereby realizing the rapid switching of multiple training modes and significantly improving training diversity and adaptability; handle 616 is fixedly installed on plunger head 613 for easy lifting of plunger head 613.

[0026] The push arm 7 is fixedly mounted on the torsion spring shaft 5. Users can train by pushing and pulling the push arm 7. Both push arms 7 work independently through their respective torsion spring shafts 5, supporting unilateral training and meeting the training needs of different users.

[0027] The counterweight beam 8 is used to adjust the counterweight of the push arm 7. One end of the counterweight beam 8 is rotatably mounted on the support beam 2, which realizes the rotation of the counterweight beam 8.

[0028] The pull rod 9 is used to connect the push arm 7 and the counterweight beam 8. One end of the pull rod 9 is rotatably mounted on the push arm 7, and the other end of the pull rod 9 is rotatably mounted on the counterweight beam 8, so as to transfer the weight of the counterweight beam 8 to the push arm 7.

[0029] The limiting plate 10 limits the rotation angle of the push arm 7. The limiting plate 10 includes a fixed bracket 101, an upper plate 102, and a lower plate 103. One end of the fixed bracket 101 is fixedly mounted on the outer wall of the main rotating shaft 3. The upper plate 102 is fixedly mounted on the top side of the fixed bracket 101 and can abut against the upper plate 102 when the push arm 7 rotates upward. The lower plate 103 is fixedly mounted on the bottom side of the fixed bracket 101 and can abut against the lower plate 103 when the push arm 7 rotates downward.

[0030] The impact beam 11 supports the counterweight beam 8. The impact beam 11 is set on both sides of the main beam frame 1, and the two ends of the impact beam 11 are fixed on the main beam frame 1 and the support beam 2 respectively. When the counterweight beam 8 falls, the impact beam 11 can resist the counterweight beam 8, so that the counterweight beam 8 remains horizontal.

[0031] The backrest 12 is fixedly mounted on the main beam 1 to support the user's back.

[0032] The seat cushion 13 is fixedly mounted on the main beam frame 1 in a sliding manner. The height of the seat cushion 13 can be adjusted by sliding to meet the usage needs of users of different heights and body types.

[0033] Working principle: In use, first select an appropriate number of counterweight plates according to the training intensity and hang them on the mounting rod of the counterweight beam 8; adjust the seat 13 to the appropriate height according to the user's height, and then adjust the unfolding angle of the two push arms 7 according to the training mode. This can be done by inserting the rod 614 into different limiting holes 601. After adjustment, the user sits on the seat 13, leans against the backrest 12, and holds the two push arms 7 with both hands to perform training by pushing; when single-arm training or alternating double-arm training is required, lift the handle 616 to pull the plunger head 613 out of the slot 612 and rotate it to the locked position. At this time, the rod 614 cannot be inserted into the limiting hole 601, and both push arms 7 can be rotated independently. Training is performed by rotating the push arms 7.

[0034] In summary, this shoulder press trainer with an independent transmission structure utilizes a counterweight beam connected to the push arms via a tie rod. The counterweight plate is directly mounted on the counterweight beam to achieve the counterweight function, eliminating the need for a traditional counterweight chamber structure, simplifying the equipment structure, reducing its size and footprint. Furthermore, the counterweight beam's location at the bottom of the device facilitates easy installation and removal of the counterweight plate, significantly improving operational convenience. The push arms are mounted on a bearing via a torsion spring shaft. During push arm movement, the elastic restoring force generated by the torsion spring creates a continuous and controllable training load, allowing the user to complete the push-pull motion against resistance, thereby achieving progressive strength training and improving muscle endurance. The push arms on both sides... Each torsion spring shaft operates independently, supporting unilateral training and meeting the training needs of different users. By setting a limiting mechanism between the torsion spring shaft and the push arm, and through the insertion and engagement of the plug rod and the limiting hole, the rotation angle of the push arm is rigidly locked, which can fix different rotation angles of the push arm, thereby enabling rapid switching between multiple training modes and significantly improving training diversity and adaptability. Through the improvement of the structure of the attached climbing scaffold, it has the advantages of reasonable design, simplified equipment structure, convenient installation and disassembly of the counterweight plate, and the ability to meet the training needs of different users, significantly improving training diversity and adaptability, thus effectively solving the problems and shortcomings of existing technologies and equipment.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shoulder pusher with an independent transmission structure, including: The main beam frame (1), support beam (2), main rotating shaft (3), bearing seat (4), torsion spring rotating shaft (5), limiting mechanism (6), push arm (7), counterweight beam (8), and tie rod (9) are characterized in that: the support beam (2) is arranged on one side of the main beam frame (1), and the support beam (2) is fixedly connected to the main beam frame (1); the main rotating shaft (3) is rotatably arranged on the top side of the support beam (2); the bearing seat (4) is fixedly arranged on the outer wall at both ends of the main rotating shaft (3); the torsion spring rotating shaft (5) Rotationally set in the bearing seat (4); The limiting mechanism (6) is set between the torsion spring shaft (5) and the bearing seat (4), and the limiting mechanism (6) limits the rotation of the torsion spring shaft (5); The push arm (7) is fixedly set on the torsion spring shaft (5); One end of the counterweight beam (8) is rotatably set on the support beam (2); One end of the pull rod (9) is rotatably set on the push arm (7), and the other end of the pull rod (9) is rotatably set on the counterweight beam (8).

2. The shoulder push trainer with an independent transmission structure according to claim 1, characterized in that: The limiting mechanism (6) includes an indexing pin (61) and a limiting plate (62). The indexing pin (61) is fixedly mounted on the bearing seat (4), and the bottom of the indexing pin (61) passes through the bearing seat (4). The limiting plate (62) is fixedly mounted on the torsion spring shaft (5), and a limiting hole (601) is provided on the limiting plate (62), and the indexing pin (61) can be inserted into the limiting hole (601).

3. The shoulder push trainer with an independent transmission structure according to claim 2, characterized in that: The indexing pin (61) includes a plunger sleeve (611), a retainer (612), a plunger head (613), a rod (614), a spring (615), and a handle (616). The plunger sleeve (611) is fixedly mounted on the bearing seat (4). The retainer (612) is integrally mounted on the top side of the plunger sleeve (611). The plunger head (613) is slidably mounted in the retainer (612), and the retainer (612) has a retaining groove (60). 2), and the plunger head (613) can be engaged with the slot (602); the insertion rod (614) is fixedly disposed at the bottom of the plunger head (613), and the insertion rod (614) can be inserted into the limiting hole (601); the spring (615) is sleeved on the insertion rod (614), and the two ends of the spring (615) abut against the plunger sleeve (611) and the insertion rod (614) respectively; the handle (616) is fixedly disposed on the plunger head (613).

4. The shoulder push trainer with an independent transmission structure according to claim 1, characterized in that: It also includes a limiting plate (10), which includes a fixed bracket (101), an upper plate (102) and a lower plate (103). One end of the fixed bracket (101) is fixedly mounted on the outer wall of the main rotating shaft (3). The upper plate (102) is fixedly mounted on the top side of the fixed bracket (101), and the push arm (7) can abut against the upper plate (102). The lower plate (103) is fixedly mounted on the bottom side of the fixed bracket (101), and the push arm (7) can abut against the lower plate (103).

5. The shoulder push trainer with an independent transmission structure according to claim 2, characterized in that: The limiting holes (601) are provided on the limiting plate (62) in multiple ways, and the multiple limiting holes (601) are evenly distributed.

6. The shoulder push trainer with an independent transmission structure according to claim 1, characterized in that: It also includes an impact beam (11), which is set on both sides of the main beam frame (1), and the two ends of the impact beam (11) are respectively fixed on the main beam frame (1) and the support beam (2), and the impact beam (11) can abut against the counterweight beam (8).

7. The shoulder push trainer with an independent transmission structure according to claim 1, characterized in that: It also includes a backrest (12) and a seat cushion (13), the backrest (12) being fixedly mounted on the main beam frame (1); the seat cushion (13) being fixedly mounted on the main beam frame (1) in a slidable manner.

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