Angle-adjustable back cushion structure for multifunctional trainer

Abstract

The angle-adjustable back cushion structure for the multifunctional trainer comprises a trainer body, a main vertical beam is fixedly arranged on the trainer body, and a back cushion is installed on the main vertical beam through an adjusting assembly; the adjusting assembly comprises an angle adjusting disc rotationally arranged on the main vertical beam, a mounting rod is fixedly arranged on the angle adjusting disc, and the back cushion is fixedly arranged on the mounting rod; the angle adjusting disc and the main vertical beam are limited and fixed through a quick pin assembly. According to the angle-adjustable back cushion structure for the multifunctional trainer, the whole adjusting process is simple and rapid, the angle adjusting range is large, and the strength of back pulling training is improved.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to an angle-adjustable back pad structure for a multifunctional training device. Background Technology

[0002] The installation angle of the back pad in the back pull function of a multi-functional trainer is generally fixed, or its gear design has too few gears and the gear shifting process is complicated and difficult to operate, which cannot meet the fitness intensity needs of different users. Therefore, this application proposes an angle-adjustable back pad structure for a multi-functional trainer to increase the rotation angle range of the back pad, thereby improving the intensity of the back pull function. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an angle-adjustable back pad structure for a multifunctional trainer.

[0004] This utility model provides a multifunctional adjustable back pad structure for a training device, comprising a training device body, a main upright beam fixedly mounted on the training device body, and a back pad mounted on the main upright beam via an adjustment assembly; the adjustment assembly includes an angle adjustment disc rotatably mounted on the main upright beam, a mounting rod fixedly mounted on the angle adjustment disc, and the back pad fixedly mounted on the mounting rod; the angle adjustment disc and the main upright beam are limited and fixed by a quick-release assembly.

[0005] Furthermore, the angle adjustment disk is fan-shaped, and the inner side of the arc-shaped edge of the angle adjustment disk is provided with adjustment limiting holes distributed in an arc shape; a first mounting hole is provided on the angle adjustment disk on the opposite side of the adjustment limiting hole; the first mounting hole is equidistant from each of the adjustment limiting holes.

[0006] Furthermore, a second mounting hole is provided on the main upright beam corresponding to the first mounting hole, and a pin hole is provided on the main upright beam corresponding to the adjustment limiting hole.

[0007] Furthermore, a shaft tube is rotatably provided inside the second mounting hole, and a bolt is provided corresponding to the shaft tube. One end of the bolt passes through the first mounting hole and is threaded into the inside of the shaft tube.

[0008] Furthermore, the quick-release assembly includes a spindle, a pin sleeve, a spring, and a locking handle; wherein,

[0009] The mandrel has an annular boss fixedly provided on the outer circumference of one end and an external thread provided on the outer circumference of the other end; the section of the mandrel located away from the external thread from the annular boss is provided as a pin section, which is used to pass through the limiting hole to limit and fix the angle adjustment disc.

[0010] The pin sleeve is fixedly disposed inside the pin sleeve hole; the pin sleeve is cylindrical, and an annular limiting platform is fixedly disposed on the inner side of one end; the inner diameter of the pin sleeve is larger than the outer diameter of the annular boss, and the inner diameter of the annular limiting platform is larger than the outer diameter of the mandrel.

[0011] The spring is sleeved on the outer circumferential side of the mandrel located on the side of the annular boss near the external thread;

[0012] The locking handle has a cylindrical cavity at one end, and an internal thread is provided on the inner wall of the cylindrical cavity. The internal thread and the external thread cooperate to fix the locking handle on the spindle.

[0013] Furthermore, the outer diameter of the mandrel is smaller than the diameter of the adjustment limiting hole, and the outer diameter of the annular boss is larger than the diameter of the adjustment limiting hole.

[0014] Furthermore, the mounting rod is fixedly disposed on one side of the angle adjustment disc, and the mounting direction of the mounting rod is set along the radial direction of the angle adjustment disc.

[0015] Furthermore, a mounting plate is fixedly provided on one side of the back pad, and the mounting plate is fixedly connected to the mounting rod.

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

[0017] This utility model's multifunctional trainer uses an angle-adjustable back pad structure. An angle adjustment disc is rotatably mounted on the main beam via a rotating shaft, and the back pad is fixed to a mounting rod on the angle adjustment disc. By rotating the angle adjustment disc, the angle of the back pad after installation can be adjusted. The angle adjustment disc has several arc-shaped limiting holes. One end of a spindle from the quick-connect assembly passes through different limiting holes on the angle adjustment disc, thereby adjusting the angle of the disc and, consequently, the angle of the back pad. The angle adjustment disc increases the adjustment range of the back pad, thus increasing the strength of the back support function.

[0018] In addition, the adjustment and assembly method between the mandrel, mandrel sleeve and limiting hole in the fast-moving components is convenient and quick, and can realize the rapid adjustment of the angle adjustment disc, thus improving the adjustment efficiency.

[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 an angle-adjustable back pad structure mounted on the main body of the trainer;

[0023] Figure 2 This is a schematic diagram of an angle-adjustable back pad structure.

[0024] Figure 3 This is a schematic diagram of the cross-section of the overhead component;

[0025] Figure 4 This is a schematic diagram of the cross-section of the bolt and shaft tube after assembly.

[0026] Figure 5 An exploded view of the angle-adjustable back pad structure;

[0027] The following are the labeling elements in the diagram: 1. Trainer body; 2. Main beam; 3. Back pad; 4. Mounting plate; 5. Angle adjustment disc; 6. Adjustment limit hole; 7. First mounting hole; 8. Mounting rod; 9. Second mounting hole; 10. Pin hole; 11. Rotary shaft; 12. Quick-release assembly; 121. Pin sleeve; 122. Annular limit platform; 123. Mandrel; 124. Annular boss; 125. External thread; 126. Spring; 127. Locking handle; 128. Cylindrical cavity; 129. Internal thread; 130. Pin section; 13. Bolt. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] Please refer to Figures 1-5 The present invention provides a multifunctional trainer with an adjustable back pad structure, including a trainer body 1. The trainer body 1 is equipped with accessories related to back stretching training, including a seat pad and back stretching elastic ropes. The trainee sits on the seat pad with his back against the back pad and performs back stretching training by pulling the back stretching elastic ropes.

[0031] Among them, a main upright beam 2 is fixedly installed on the main body 1 of the trainer, and a back pad 3 is installed on the main upright beam 2 through an adjustment component;

[0032] The adjustment assembly includes an angle adjustment disc 5 rotatably mounted on the main beam 2, an installation rod 8 fixedly mounted on the angle adjustment disc 5, and a back pad 3 fixedly mounted on the installation rod 8.

[0033] The angle adjustment disc 5 and the main upright beam 2 are fixed together by a quick-release assembly 12.

[0034] In a preferred embodiment, the angle adjustment disk 5 is fan-shaped, and the inner side of the arc-shaped edge of the angle adjustment disk 5 is provided with adjustment limiting holes 6 distributed in an arc shape; a first mounting hole 7 is provided on the angle adjustment disk 5 on the opposite side of the adjustment limiting hole 6; the distance between the first mounting hole 7 and each adjustment limiting hole 6 is the same, and the angle adjustment disk 5 rotates on the main upright beam 2 with the first mounting hole 7 as the center, thereby realizing the function of adjusting the angle of the back pad 3.

[0035] In a preferred embodiment, a second mounting hole 9 is provided on the main beam 2 corresponding to the first mounting hole 7, and a pin hole 10 is provided on the main beam 2 corresponding to the adjustment limiting hole 6.

[0036] In a preferred embodiment, a shaft tube 11 is rotatably provided inside the second mounting hole 9, and a bolt 13 is provided corresponding to the shaft tube 11. The bolt 13 is threadedly connected to the inside of the shaft tube 11. One end of the bolt 13 passes through the first mounting hole 7 and is threaded into the inside of the shaft tube 11, so that the angle adjustment disk 5 can be rotatably mounted on the main beam 2.

[0037] In a preferred embodiment, the quick-release assembly 12 includes a spindle 123, a pin sleeve 121, a spring 126, and a locking handle 127; wherein,

[0038] The spindle 123 has an annular boss 124 fixedly provided on the outer circumference of one end, and an external thread 125 provided on the outer circumference of the other end; the section of the spindle 123 located away from the annular boss 124 and the external thread 125 is provided as a pin section 130, which is used to insert into the interior of the corresponding adjustment limit hole 6 to limit and fix the angle adjustment disk 5; the length of the pin section 130 is greater than the thickness of the angle adjustment disk 5.

[0039] The pin sleeve 121 is fixedly set inside the pin sleeve hole 10; the pin sleeve 121 is cylindrical, and an annular limiting platform 122 is fixedly set on the inner side of one end; and the installation direction of the pin sleeve 121 is such that the end of the pin sleeve 121 near the annular limiting platform 122 is located at the end of the pin sleeve hole 10 away from the angle adjusting plate 5.

[0040] The inner diameter of the pin sleeve 121 is larger than the outer diameter of the annular boss 124, and the inner diameter of the annular limiting platform 122 is larger than the outer diameter of the mandrel 123.

[0041] Spring 126 is sleeved on the outer circumferential side of the mandrel 123 located on the annular boss 124 near the external thread 125; in the installed state, one end of spring 126 contacts the side of the annular boss 124 near the external thread 125, and the other end contacts the inner end face of the annular limiting platform 122.

[0042] The locking handle 127 has a cylindrical cavity 128 inside one end. The inner wall of the cylindrical cavity 128 has an internal thread 129. The internal thread 129 and the external thread 125 cooperate to fix the locking handle 127 on the spindle 123. By pulling the spindle 123 with the locking handle 127, the spindle 123 slides inside the pin sleeve 121.

[0043] In a preferred embodiment, the outer diameter of the mandrel 123 is smaller than the diameter of the adjustment limiting hole 6, and the outer diameter of the annular boss 124 is larger than the diameter of the adjustment limiting hole 6.

[0044] In a preferred embodiment, the mounting rod 8 is fixedly disposed on one side of the angle adjustment disk 5, and the mounting direction of the mounting rod 8 is set along the radial direction of the angle adjustment disk 5.

[0045] In a preferred embodiment, a mounting plate 4 is fixedly provided on one side of the back pad 3, and the mounting plate 4 is fixedly connected to the mounting rod 8.

[0046] The working principle of this utility model:

[0047] First, the angle adjustment disc 5 is rotatably fixed to the main beam 2 via the rotating shaft 11, and the back pad 3 is fixedly connected to the mounting rod 8 on the angle adjustment disc 5; then, the quick-release assembly 12 is installed on the main beam 2, specifically, the pin sleeve 121 is fixed inside the pin sleeve hole 10, and it should be noted that one end of the annular limiting platform 122 on the pin sleeve 121 is installed at the end of the pin sleeve hole 10 away from the angle adjustment disc 5; then, the spring 126 is sleeved on the mandrel 123 on the section of the annular boss 124 near the external thread 125, and then the mandrel... One end of the shaft 123 near the external thread 125 is inserted into the large port of the pin sleeve 121 (that is, the end away from the annular limiting platform 122). At this time, one end of the spring 126 abuts against the end face of the annular boss 124 near the external thread 125, and the other end abuts against the inner end face of the annular limiting platform 122. Then, the end of the spindle 123 near the external thread 125 continues to be inserted into the pin sleeve 121 until it passes through the inner ring of the annular limiting platform 122. After passing through, the locking handle 127 is threaded to one end of the external thread 125 of the spindle 123.

[0048] Pull the locking handle 127 away from the pin sleeve 121. The pin section 130 and the annular boss 124 on the spindle 123 are pulled into the inside of the pin sleeve 121. At this time, the spring 126 is in a compressed state. Then, adjust the angle of the angle adjustment disc 5 so that the corresponding adjustment limit hole 6 is aligned with the pin sleeve 121. Then, slowly release the locking handle 127. Under the elastic force of the spring 126, the pin section 130 on the spindle 123 is inserted into the inside of the corresponding angle limit hole 6, completing the angle adjustment and fixation of the angle adjustment disc 5, thereby realizing the angle adjustment of the back pad 3. The whole adjustment process is simple, fast, and has a large angle adjustment range, which increases the intensity of back stretching training.

[0049] 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.

[0050] 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.

[0051] 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 back pad structure with adjustable angle for a multifunctional trainer, comprising a trainer body, wherein a main upright beam is fixedly disposed on the trainer body, characterized in that, A back pad is installed on the main upright beam via an adjustment assembly; the adjustment assembly includes an angle adjustment disc rotatably mounted on the main upright beam, an installation rod fixedly mounted on the angle adjustment disc, and the back pad fixedly mounted on the installation rod; the angle adjustment disc and the main upright beam are limited and fixed by a quick-release assembly.

2. The angle-adjustable back pad structure for the multifunctional trainer according to claim 1, characterized in that, The angle adjustment disc is fan-shaped, and the inner side of the arc-shaped edge of the angle adjustment disc is provided with adjustment limiting holes distributed in an arc shape; a first mounting hole is provided on the angle adjustment disc on the opposite side of the adjustment limiting hole; the first mounting hole is equidistant from each of the adjustment limiting holes.

3. The angle-adjustable back pad structure for the multifunctional trainer according to claim 2, characterized in that, The main upright beam has a second mounting hole corresponding to the first mounting hole, and the main upright beam has a pin hole corresponding to the adjustment and limiting hole.

4. The angle-adjustable back pad structure for the multifunctional trainer according to claim 3, characterized in that, The second mounting hole has a rotating shaft tube inside, and a bolt is provided corresponding to the shaft tube. One end of the bolt passes through the first mounting hole and is screwed into the shaft tube.

5. The angle-adjustable back pad structure for the multifunctional trainer according to claim 3, characterized in that, The quick-release assembly includes a spindle, a pin sleeve, a spring, and a locking handle; wherein... The mandrel has an annular boss fixedly provided on the outer circumference of one end and an external thread provided on the outer circumference of the other end; the section of the mandrel located away from the external thread from the annular boss is provided as a pin section, which is used to pass through the limiting hole to limit and fix the angle adjustment disc. The pin sleeve is fixedly disposed inside the pin sleeve hole; the pin sleeve is cylindrical, and an annular limiting platform is fixedly disposed on the inner side of one end; the inner diameter of the pin sleeve is larger than the outer diameter of the annular boss, and the inner diameter of the annular limiting platform is larger than the outer diameter of the mandrel. The spring is sleeved on the outer circumferential side of the mandrel located on the side of the annular boss near the external thread; The locking handle has a cylindrical cavity at one end, and an internal thread is provided on the inner wall of the cylindrical cavity. The internal thread and the external thread cooperate to fix the locking handle on the spindle.

6. The angle-adjustable back pad structure for the multifunctional trainer according to claim 5, characterized in that, The outer diameter of the mandrel is smaller than the diameter of the adjustment limiting hole, and the outer diameter of the annular boss is larger than the diameter of the adjustment limiting hole.

7. The angle-adjustable back pad structure for the multifunctional trainer according to claim 1, characterized in that, The mounting rod is fixedly disposed on one side of the angle adjustment disc, and the mounting direction of the mounting rod is set along the radial direction of the angle adjustment disc.

8. The angle-adjustable back pad structure for the multifunctional trainer according to claim 1, characterized in that, A mounting plate is fixedly provided on one side of the back pad, and the mounting plate is fixedly connected to the mounting rod.

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