Portable stretching device and using method thereof

Abstract

The invention relates to a portable stretching device and a using method thereof, and belongs to the field of sports equipment, the portable stretching device comprises a supporting rod, a plurality of telescopic rod sets are sequentially spliced above the supporting rod, each telescopic rod set is connected with a stretching plate, the topmost telescopic rod set is spliced with a stretching rod, and the stretching plate is connected with a stretching rod. Splicing clamping pieces are connected between the supporting rods and the telescopic rod sets and between the stretching rods and the telescopic rod sets, second locking pieces are connected between the stretching plates and the telescopic rod sets, supporting legs are hinged to the bottoms of the supporting rods, and the supporting legs are sleeved with anti-skid rod sleeves. After the exercisers finish stretching, the telescopic rod set shrinks, the multiple stretching plates are sequentially spliced to form a cushion, the supporting rods and the stretching rods are clamped to the side walls of the telescopic rod set through splicing and clamping, the supporting rods and the stretching rods are located on the two sides of the cushion formed by the stretching plates and clamped to the stretching plates, and the supporting legs are folded. And the anti-skid rod sleeve is clamped with the side wall, deviating from the telescopic rod, of the cushion formed by the stretching plates, so that exercisers can conveniently do stretching exercise and rest anytime and anywhere.

Description

Technical Field

[0001] This application relates to the technical field of sports equipment, and in particular to a portable stretching device. Background Technology

[0002] As the country encourages fitness for all, more and more people are engaging in physical activities. To avoid muscle strain during exercise, stretching before and after exercise is very important.

[0003] Currently, the most common stretching methods used by exercisers are to stretch their legs and shoulders in public sports areas equipped with stretching equipment.

[0004] However, many areas do not have stretching equipment available for people to use. Some exercisers choose to exercise in quiet areas, but these areas often do not have fitness equipment. This means that exercisers cannot find suitable stretching places to stretch and rest before and after exercise. Without stretching, muscles are prone to soreness or even tearing, which affects the exercise effect and physical health of exercisers. Summary of the Invention

[0005] To facilitate exercisers in performing stretching exercises and taking breaks anytime and anywhere, this application provides a portable stretching device.

[0006] The portable stretching device provided in this application adopts the following technical solution: First aspect: A portable stretching device includes a support rod, with multiple sets of telescopic rods sequentially spliced ​​above the support rod. Each set of telescopic rods is connected to a stretching plate. The topmost telescopic rod set is spliced ​​with a stretching rod. There are splicing clips between the support rod and the bottommost telescopic rod set, and between the topmost telescopic rod set and the stretching rod, which can adjust the splicing direction. There is a second locking member between the stretching plate and the telescopic rod set, which can adjust the position and angle of the stretching plate. The bottom of the support rod is hinged with a support foot, and the support foot is fitted with an anti-slip sleeve. After the exercisers finish stretching, the telescopic rod assembly retracts to its minimum length, and multiple stretching plates are sequentially spliced ​​together to form a seat cushion. The support rod and stretching rod are spliced ​​and snapped into the side wall of the telescopic rod assembly. The support rod and stretching rod are located on both sides of the seat cushion formed by the stretching plates and snapped into the stretching plates. The support legs are retracted, and the anti-slip rod sleeve is snapped into the side wall of the seat cushion formed by multiple stretching plates away from the telescopic rod.

[0007] By adopting the above technical solution, when exercisers perform stretching, the support legs are fitted with anti-slip sleeves to support the support rods. The support rods are engaged with the bottom of the telescopic rod assembly, and the stretching rods are engaged with the top of the telescopic rods. Exercisers can adjust the length of the telescopic rods and the angle of the stretching plates according to their needs. After stretching, the support legs and the telescopic rod assembly can be retracted. Multiple stretching plates are then joined together to form a cushion for exercisers to rest on. To reinforce the cushion, the splicing direction of the support rods and stretching rods with the telescopic rod assembly is changed. The support rods and stretching rods are engaged with the side walls of the stretching plates that form the cushion, and the anti-slip sleeves are engaged with the side of the stretching plates that form the cushion away from the telescopic rods, thereby fixing the four sides of the cushion to prevent deformation and making it easy to carry later. This allows exercisers to perform stretching exercises and rest anytime, anywhere.

[0008] Optionally, the telescopic rod assembly includes a main rod section, a secondary rod section, and a first locking element; The main rod section has a larger diameter than the secondary rod section and is provided with a telescopic groove for the secondary rod section to slide coaxially into. The main rod section at the bottom is connected to the support rod, and the secondary rod section at the top is connected to the tension rod. The first locking member is used to lock the secondary rod section at a position where it slides away from the main rod section.

[0009] Optionally, the first locking element includes a locking nut and a locking claw; The locking nut is threaded to the main rod section. The locking claw is installed on the top of the main rod section and has a locking cavity for the secondary rod section to slide. The inner circumferential wall of the locking nut facing the locking claw is a conical groove wall for pushing the locking claw against the secondary rod section. The conical groove wall gradually slopes towards its own axis along the direction close to the secondary rod section. The teeth of the locking claw are made of elastic material and the side wall facing the conical groove wall is a conical surface with an inclination angle smaller than that of the conical groove wall.

[0010] Optionally, the splicing mechanism includes a control lever, an arc-shaped locking block, a splicing spring, and a locking block; The snap-fit ​​block is installed at the end of the support rod or tension rod. The side wall of the main rod section and the end face facing the support rod and tension rod are provided with splicing grooves for the snap-fit ​​block to be inserted. The main rod section is provided with a connecting hole that is slidably connected to the control rod. The connecting hole communicates with the splicing groove. The arc-shaped snap-fit ​​block is slidably connected to the groove wall of the splicing groove and connected to the control rod. The two ends of the splicing spring are respectively connected to the end face of the arc-shaped snap-fit ​​block facing the control rod and the groove wall of the connecting hole of the splicing groove. The snap-fit ​​block is provided with a snap-fit ​​groove that engages with the arc-shaped surface of the arc-shaped snap-fit ​​block.

[0011] Optionally, the stretching plate includes a main board filled with therapeutic stones. The main board has a first locking strip on the side opposite to the adjacent main board that engages with a support rod or a stretching rod. The main board has a second locking strip on the side opposite to the telescopic rod that engages with an anti-slip rod sleeve. Between two adjacent main boards, one main board has a third locking strip, and the other main board has a third sliding groove that engages with the third locking strip.

[0012] Optionally, the support leg includes a hinged support rod, a connecting rod, an anti-slip plate, a mounting slider, and a control spring; A hinge is connected between the hinged support rod and the support rod. The connecting rod is connected to the hinged support rod and has a sliding groove inside that allows for vertical sliding connection with the mounting slider. The bottom of the mounting slider is connected to the anti-slip plate. One end of the control spring is connected to the bottom of the sliding groove and the other end is connected to the mounting slider. The bottom of the connecting rod has a slot for the anti-slip plate to slide out. A control rod is provided on the anti-slip rod sleeve. When the control rod is inserted into the sliding groove, the anti-slip plate slides out of the slot.

[0013] Optionally, the anti-slip rod sleeve has a connecting groove along its own axis for the connecting rod to slide into, and the bottom of the anti-slip rod sleeve also has a control through groove for the anti-slip plate to move out. The bottom end of the control rod in the connecting groove is gradually inclined from top to bottom along the direction close to the control through groove, and the top end of the mounting slider is an inclined surface that matches the bottom end of the control rod.

[0014] Optionally, the bottom of the anti-slip rod sleeve is provided with an anti-slip pad, and the end face of the anti-slip rod sleeve opposite to the control through groove is provided with a second sliding groove that engages with the second locking strip. The anti-slip rod sleeve is provided with an assembly strip and an assembly groove on both sides along the opening direction of the connecting sliding groove for engaging with adjacent anti-slip rod sleeves. The support rod is provided with a locking strip that matches the assembly groove, and the tension rod is provided with a locking groove that matches the assembly strip.

[0015] The second aspect: Optionally, a method of using a portable stretching device, applied to a portable stretching device, includes the following steps: When the device transitions from the cushion state to the stretch state: Step 1: After putting the anti-slip rod sleeves on the support legs, raise the support rod on the ground; Step 2: The support rod is snapped into the bottom of the telescopic rod assembly, and the tension rod is snapped into the top of the telescopic rod assembly; Step 3: Adjust the length of the telescopic rod and the placement angle of the tension plate according to the requirements; When the device transitions from the stretched state to the cushion state: Step 1: Fold up the telescopic rod assembly and support legs, and assemble multiple stretch plates into a seat cushion; Step 2: Change the splicing direction of the support rod and tension rod with the telescopic rod assembly, and snap the support rod and tension rod with the side wall of the tension plate that forms the seat cushion; Step 3: The anti-slip rod sleeve is snapped into place on the side of the stretch plate that forms the seat cushion away from the telescopic rod, thus securing the four perimeters of the seat cushion.

[0016] In summary, this application includes at least one of the following beneficial technical effects of the portable stretching device: Exercisers can adjust the length of the telescopic rod and the angle of the stretching plates according to their needs. After stretching, the support legs and the telescopic rod assembly can be retracted. Multiple stretching plates are spliced ​​together to form a cushion. The support rod and the stretching rod are engaged with the side wall of the stretching plate forming the cushion. The anti-slip sleeve is engaged with the side of the stretching plate forming the cushion away from the telescopic rod. The four sides of the cushion are fixed for exercisers to rest and also facilitate the carrying of the stretching device, making it convenient for exercisers to perform stretching exercises and rest anytime and anywhere. Through the locking nut and locking claw, the secondary rod section can not only slide but also rotate within the main rod section. The locking claw can simultaneously lock the sliding and rotating positions of the secondary rod section, so as to flexibly adjust the position and angle of the stretching plates. Attached Figure Description Figure 1 This is a schematic diagram of the first assembled state of a portable stretching device according to this application.

[0017] Figure 2 This is a schematic diagram of the connection between the support rod and the support leg in Embodiment 1 of this application.

[0018] Figure 3 This is a schematic diagram of the second assembly state of a portable stretching device according to this application.

[0019] Figure 4 This is a schematic diagram of the connection of the stretching plate assembled into a seat cushion in Embodiment 1 of this application.

[0020] Figure 5 This is a schematic diagram of the structure of the first locking element in Embodiment 1 of this application.

[0021] Figure 6 This is a schematic diagram of the splicing card in Embodiment 1 of this application.

[0022] Figure 7 This is a schematic diagram of the connection between the tension rod and the splicing clip in Embodiment 1 of this application.

[0023] Figure 8 This is a schematic diagram of the first connection between the anti-slip sleeve and the connecting rod in Embodiment 1 of this application.

[0024] Figure 9 This is a second connection diagram of the anti-slip sleeve and the connecting rod in Embodiment 1 of this application.

[0025] In the diagram: 1. Support rod; 11. Hinge slide; 12. First slide; 2. Telescopic rod assembly; 21. Main rod section; 211. Telescopic slide; 212. Connecting hole; 213. Splicing slide; 22. Secondary rod section; 23. First locking element; 231. Locking nut; 232. Locking claw; 233. Conical groove wall; 234. Locking cavity; 3. Splicing clip; 31. Control rod; 32. Arc-shaped clip; 33. Splicing spring; 34. Clip block; 341. Slot; 4. Tension plate; 41. Main plate; 42. First clip; 43. Second clip; 44. Third clip; 45. Third slide. 5. Second locking element; 6. Tension rod; 61. Pull rod; 611. Fourth slide groove; 62. Anti-slip mesh; 63. Hand grip post; 7. Hinge component; 71. First slider; 72. Hinge rod; 73. Second slider; 8. Support foot; 81. Hinge support rod; 811. Support rod slide groove; 82. Connecting rod; 83. Anti-slip plate; 84. Mounting slider; 85. Control spring; 86. Removal groove; 87. Sliding groove; 9. Anti-slip rod sleeve; 91. Connecting slide groove; 92. Control through groove; 93. Control insertion rod; 94. Second slide groove; 95. Anti-slip pad; 96. Assembly strip; 97. Assembly groove. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0027] Example 1 This application discloses a portable stretching device.

[0028] When the device is assembled in a stretched state, refer to Figure 1 and Figure 2 The system includes a support rod 1, with multiple sets of telescopic rods 2 sequentially spliced ​​above the support rod 1. Each set of telescopic rods 2 is connected to a tension plate 4. The top telescopic rod 2 is spliced ​​with a tension rod 6. There are splicing clips 3 between the support rod 1 and the bottom telescopic rod 2, and between the top telescopic rod 2 and the tension rod 6, which can adjust the splicing direction. There is a second locking piece 5 between the tension plate 4 and the telescopic rod 2, which can adjust the position and angle of the tension plate 4. The bottom of the support rod 1 is hinged with a support leg 8, and the support leg 8 is fitted with an anti-slip sleeve 9.

[0029] After the exercisers finished stretching, such as Figure 3 As shown, the telescopic rod assembly 2 retracts to its minimum length, and multiple stretch plates 4 are sequentially spliced ​​together to form a seat cushion. The support rod 1 and the stretch rod 6 are spliced ​​and snapped into the side wall of the telescopic rod assembly 2. The support rod 1 and the stretch rod 6 are located on both sides of the seat cushion formed by the stretch plates 4 and are snapped into the stretch plates 4. The support legs 8 are retracted, and the anti-slip rod sleeve 9 is snapped into the seat cushion formed by multiple stretch plates 4 away from the side wall of the telescopic rod assembly 2.

[0030] After the support legs 8 are retracted, a portion of the support legs 8 will be located above the tension plate 4. To more clearly see the connection relationships around the tension plate 4, Figure 3 The structure of the supporting leg 8 located above the tension plate 4 is omitted, but through... Figure 1 and Figure 2 The position of the support leg 8 after it is retracted can be directly determined.

[0031] The telescopic rod assembly 2, support rod 1, tension rod 6, and anti-slip rod sleeve 9 are engaged with the sides of the seat cushion formed by multiple tension plates 4 to fix the shape of the seat cushion so that exercisers can rest after stretching. It is also easy to carry so that exercisers can stretch and rest anytime and anywhere.

[0032] Reference Figure 1 and Figure 4 To improve the stability of the seat cushion structure and strengthen the connection between the tension plates 4, the tension plate 4 includes a main plate 41 filled with therapeutic stones. The side of the main plate 41 facing away from the adjacent main plate 41 is provided with a first locking strip 42 that engages with the support rod 1 or the tension rod 6. The side of the main plate 41 facing away from the telescopic rod group 2 is provided with a second locking strip 43 that engages with the anti-slip rod sleeve 9. Between two adjacent main plates 41, one main plate 41 is provided with a third locking strip 44, and the other main plate 41 is provided with a third sliding groove 45 that engages with the third locking strip 44.

[0033] The support rod 1 has a first groove 12 that engages with the first locking strip 42, the tension rod 6 has a fourth groove 611 that engages with the first locking strip 42, and the anti-slip rod sleeve 9 has a second groove 94 that engages with the second locking strip 43, thereby improving the connection strength with the tension plate 4.

[0034] To improve the connection strength between support rod 1, tension rod 6, telescopic rod assembly 2, and anti-slip sleeve 9, such as Figure 2 and Figure 5 As shown, the anti-slip sleeve 9 has an assembly strip 96 and an assembly groove 97 on both sides for engaging with the adjacent anti-slip sleeve 9, the support rod 1 has an assembly strip 96 that matches the assembly groove 97, and the tension rod 6 has an assembly groove 97 that matches the assembly strip 96.

[0035] Reference Figure 1 and Figure 5 The telescopic rod assembly 2 includes a main rod section 21, a secondary rod section 22, and a first locking element 23; The main rod section 21 has a larger diameter than the secondary rod section 22 and has a telescopic groove 211 for the secondary rod section 22 to slide coaxially into. The main rod section 21 at the bottom is connected to the support rod 1, and the secondary rod section 22 at the top is connected to the tension rod 6 by the main rod section 21.

[0036] The first locking component 23 includes a locking nut 231 and a locking claw 232; The locking nut 231 is threadedly connected to the main rod section 21. The locking claw 232 is installed on the top of the main rod section 21 and has a locking cavity 234 for the secondary rod section 22 to slide. The inner peripheral wall of the locking nut 231 facing the locking claw 232 is a conical groove wall 233 for pushing the locking claw 232 to press against the secondary rod section 22. The conical groove wall 233 gradually tilts towards its own axis along the direction close to the secondary rod section 22. The teeth of the locking claw 232 are made of elastic material and the side wall facing the conical groove wall 233 is a conical surface with an inclination angle smaller than that of the conical groove wall 233.

[0037] By rotating the locking nut 231 in the forward direction, the tapered groove wall 233 approaches and continuously presses against the locking claw 232, causing the locking claw 232 to deform inward to clamp the secondary rod section 22, thereby locking the position of the secondary rod section 22. By rotating the locking nut 231 in the reverse direction, the tapered groove wall 233 moves away from the locking claw 232, and the locking claw 232 returns to its original position. The secondary rod section 22 can not only slide within the telescopic slide groove 211, but also rotate within the telescopic slide groove 211 to facilitate adjustment of the position of the tension plate 4.

[0038] To better adjust the angle of the stretching plate 4, the second locking member 5 has the same structure as the first locking member 23, allowing the stretching plate 4 to rotate radially around the main rod section 21, thereby adjusting it to the angle required by the exerciser, which is more ergonomic.

[0039] Reference Figure 1 and Figure 3 Each of the main pole sections 21 located on both sides of the multiple telescopic pole groups 2 has a splicing clip 3 at its end face and side wall. This is so that when the poles need to be assembled into a stretched state, both the support pole 1 and the tension pole 6 are connected to the end face of the main pole section 21 facing away from the secondary pole section 22 via the splicing clip 3. When the poles need to be assembled into a seat for rest and movement, both the support pole 1 and the tension pole 6 are connected to the side wall of the main pole section 21 via the splicing clip 3.

[0040] Reference Figure 6 and Figure 7 The splicing fastener 3 includes a control lever 31, an arc-shaped fastener 32, a splicing spring 33, and a fastener block 34; The snap-fit ​​block 34 is installed at the end of the support rod 1 or the tension rod 6. The side wall of the main rod section 21 and the end face facing the support rod 1 and tension rod 6 are both provided with splicing grooves 213 for the snap-fit ​​block 34 to insert into. A connecting hole 212 is radially provided on the main rod section 21, which is slidably connected to the control rod 31. The connecting hole 212 communicates with the splicing groove 213. The arc-shaped snap-fit ​​block 32 is slidably connected to the groove wall of the splicing groove 213 and connected to the control rod 31. Both ends of the splicing spring 33 are respectively connected to the end face of the arc-shaped snap-fit ​​block 32 facing the control rod 31 and the groove wall of the connecting hole 212 communicating with the splicing groove 213. The snap-fit ​​block 34 has a snap-fit ​​groove 341 that engages with the arc-shaped surface of the arc-shaped snap-fit ​​block 32. The arc-shaped surface of the arc-shaped snap-fit ​​block 32 increases the snap-fit ​​area with the snap-fit ​​block 34 and facilitates the quick insertion of the snap-fit ​​block 34 into the splicing groove 213.

[0041] Reference Figure 1 and Figure 8 The support leg 8 includes a hinged support rod 81, a connecting rod 82, an anti-slip plate 83, a mounting slider 84, and a control spring 85.

[0042] A hinge 7 connects the hinged support rod 81 and the support rod 1. The connecting rod 82 is connected to the hinged support rod 81 and has a sliding groove 87 inside that is vertically connected to the mounting slider. The bottom of the mounting slider 84 is connected to the anti-slip plate 83. One end of the control spring 85 is connected to the bottom of the sliding groove 87 and the other end is connected to the mounting slider 84. The bottom of the connecting rod 82 has a removal groove 86 for the anti-slip plate 83 to slide out. The anti-slip rod sleeve 9 has a control rod 93. When the control rod 93 is inserted into the sliding groove 87, the anti-slip plate 83 slides out of the removal groove 86.

[0043] The hinge component 7 includes a first slider 71, a hinge rod 72, and a second slider 73.

[0044] The support rod 1 has a hinged groove 11 that slides vertically to the first slider 71, and the hinged support rod 81 has a support rod groove 811 that slides to the second slider 73. The two ends of the hinged rod 72 are rotatably mounted on the first slider 71 and the second slider 73, respectively. As the support leg 8 opens and closes, the hinged rod 72 always connects the support rod 1 and the hinged support rod 81, forming a triangular positional relationship to improve the connection strength between the support leg 8 and the support rod 1.

[0045] In addition, to facilitate the retraction of the support leg 8, the diameter of the hinged support rod 81 is smaller than the diameter of the support rod 1. To reduce the impact of the support leg 8 on the seat cushion when retracted, the diameter of the connecting rod 82 is smaller than the diameter of the hinged support rod 81. The diameter of the anti-slip sleeve 9 is the same as the diameter of the hinged support rod 81 to increase the stability of the support leg 8 when it is raised.

[0046] To enhance the anti-slip strength of the supporting leg 8, the bottom of the anti-slip rod sleeve 9 is equipped with an anti-slip pad 95, such as... Figure 8 and Figure 9 As shown, the anti-slip sleeve 9 has a connecting groove 91 along its own axis for the connecting rod 82 to slide into. The bottom of the anti-slip sleeve 9 also has a control groove 92 for the anti-slip plate 83 to move out. The bottom end of the control rod 93 in the connecting groove 91 is gradually inclined from top to bottom along the direction close to the control groove 92. The top end of the mounting slider 84 is an inclined surface that matches the bottom end of the control rod 93.

[0047] When the support leg 8 is on the ground, the control rod 93 is inserted into the connecting groove 91, and the anti-slip pad 95 and anti-slip plate 83 are in contact with the ground. On the one hand, this increases the anti-slip strength of the support leg 8, and on the other hand, it strengthens the connection between the anti-slip rod sleeve 9 and the support leg 8.

[0048] When stretching, the legs or arms need to be placed on the stretching plate 4. Some shaking will occur during the placement process. The anti-slip strip and anti-slip pad 95 are respectively installed on the two interlocking structures, and both the anti-slip rod sleeve 9 and the anti-slip strip are in contact with the ground. The amplitude generated by the shaking will be partially offset by the two interlocking structures, which can improve the anti-sway effect of the support leg 8 and reduce the probability of the support rod 1 tilting.

[0049] Reference Figure 3 To more intuitively show the connection situation around the tension plate 4 after the tensioning device is retracted, dashed lines are used to indicate the snap-fit ​​positions between adjacent tension plates 4, tension plate 4 and support rod 1, support rod 1 and anti-slip sleeve 9, anti-slip sleeve 9, anti-slip sleeve 9 and tension rod 6, and tension rod 6 and tension plate 4.

[0050] The second groove 94 is opened on the end face of the anti-slip sleeve 9 away from the control through groove 92, and the assembly strip 96 and the assembly groove 97 are respectively located on both sides of the anti-slip sleeve 9 along the opening direction of the connecting groove 91.

[0051] Reference Figure 1 and Figure 7 The extension bar 6 includes a pull rod 61, a fourth slot 341 and a locking block 34, all located on the pull rod 61. To facilitate the exerciser's hand grip to find a stable point, the pull rod 61 has an anti-slip mesh 62 in the middle position for easy gripping. To facilitate the exerciser's arm stretching, a hand grip post 63 is vertically connected to the periphery of the extension bar 6. The hand grip post 63 has a groove that fits the shape of the fingers to prevent the exerciser from slipping out of their hand due to sweaty palms after exercise.

[0052] Furthermore, since some of the support legs 8 will be located below the support rod 1 after being retracted, the handgrip column 63, after being assembled into a seat, is positioned below the tension rod 6 to ensure seat balance. At this time, the bottom of the handgrip column 63 is flush with the retracted support legs 8, creating a distance between the tension plate 4 (which becomes the seat) and the ground. This serves two purposes: firstly, it protects the tension plate 4 from direct contact with the ground, and secondly, it prevents cool air from the ground from penetrating the tension plate 4 and contacting the exerciser.

[0053] The implementation principle of a portable stretching device according to this application embodiment is as follows: When exercisers stretch, the support leg 8 is fitted with the anti-slip sleeve 9, and the support rod 1 is supported. The support rod 1 is engaged with the bottom of the telescopic rod assembly 2, and the stretching rod 6 is engaged with the top of the telescopic rod. Exercisers can adjust the length of the telescopic rod and the placement angle of the stretching plate 4 according to their needs. After stretching, the support leg 8 and the telescopic rod assembly 2 can be retracted. Multiple stretching plates 4 are spliced ​​together to form a cushion for exercisers to rest. In order to reinforce the cushion, the splicing direction of the support rod 1 and the stretching rod 6 with the telescopic rod assembly 2 is changed. The support rod 1 and the stretching rod 6 are engaged with the side wall of the stretching plate 4 that forms the cushion, and the anti-slip sleeve 9 is engaged with the side of the stretching plate 4 that forms the cushion away from the telescopic rod, thereby fixing the four sides of the cushion to prevent the cushion from deforming and to facilitate subsequent carrying, so that exercisers can perform stretching exercises and rest anytime and anywhere.

[0054] Example 2 A method of using a portable stretching device, applicable to a portable stretching device, includes the following steps: When the device transitions from the cushion state to the stretch state: Step 1: After putting the anti-slip rod sleeve 9 on the support leg 8, raise the support rod 1 on the ground; Step 2: The support rod 1 is engaged with the bottom of the telescopic rod assembly 2, and the tension rod 6 is engaged with the top of the telescopic rod assembly 2. Step 3: Adjust the length of the telescopic rod and the placement angle of the tension plate 4 according to the requirements.

[0055] When the device transitions from the stretched state to the cushion state: Step 1: Retract the telescopic rod assembly 2 and the support legs 8, and assemble multiple tension plates 4 into a seat cushion; Step 2: Change the splicing direction of support rod 1 and tension rod 6 with telescopic rod group 2, and engage support rod 1 and tension rod 4 with the side wall of tension plate 4 forming the seat cushion. Step 3: The anti-slip rod sleeve 4 is snapped into the side of the stretch plate 4 that forms the seat cushion away from the telescopic rod, thus fixing the four perimeters of the seat cushion.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable stretching device, characterized in that, Includes a support rod (1), above which multiple sets of telescopic rod groups (2) are sequentially spliced, each set of telescopic rod groups (2) is connected to a tension plate (4), the topmost telescopic rod group (2) is spliced ​​with a tension rod (6), the support rod (1) and the bottommost telescopic rod group (2), the topmost telescopic rod group (2) and the tension rod (6) are all provided with splicing clips (3) that can adjust the splicing direction, the tension plate (4) and the telescopic rod group (2) are provided with a second locking piece (5) that can adjust the position angle of the tension plate (4), the bottom of the support rod (1) is hinged with a support leg (8), the support leg (8) is fitted with an anti-slip rod sleeve (9); After the exercisers finish stretching, the telescopic rod assembly (2) retracts to its minimum length, and multiple stretching plates (4) are sequentially spliced ​​together to form a seat cushion. The support rod (1) and the stretching rod (6) are spliced ​​and snapped into the side wall of the telescopic rod assembly (2). The support rod (1) and the stretching rod (6) are located on both sides of the seat cushion formed by the stretching plates (4) and snapped into the stretching plates (4). The support legs (8) are retracted, and the anti-slip rod sleeve (9) is snapped into the side wall of the seat cushion formed by multiple stretching plates (4) away from the telescopic rod.

2. The portable stretching device according to claim 1, characterized in that: The telescopic rod assembly (2) includes a main rod section (21), a secondary rod section (22), and a first locking member (23). The main rod section (21) has a larger diameter than the secondary rod section (22) and has a telescopic groove (211) for the secondary rod section (22) to slide coaxially. The main rod section (21) at the bottom is connected to the support rod (1). The secondary rod section (22) at the top is connected to the tension rod (6) by the main rod section (21). The first locking member (23) is used to lock the part of the secondary rod section (22) that slides away from the main rod section (21).

3. A portable stretching device according to claim 2, characterized in that: The first locking member (23) includes a locking nut (231) and a locking claw (232); The locking nut (231) is threadedly connected to the main rod section (21). The locking claw (232) is installed on the top of the main rod section (21) and has a locking cavity (234) for the secondary rod section (22) to slide. The inner peripheral wall of the locking nut (231) facing the locking claw (232) is a conical groove wall (233) for pushing the locking claw (232) to press against the secondary rod section (22). The conical groove wall (233) gradually tilts towards its own axis along the direction close to the secondary rod section (22). The teeth of the locking claw (232) are made of elastic material and the side wall facing the conical groove wall (233) is a conical surface with an inclination angle smaller than that of the conical groove wall (233).

4. A portable stretching device according to claim 2, characterized in that: The splicing fastener (3) includes a control lever (31), an arc-shaped locking block (32), a splicing spring (33), and a locking block (34). The snap-fit ​​block (34) is installed at the end of the support rod (1) or the tension rod (6). The side wall of the main rod section (21) and the end face facing the support rod (1) and the tension rod (6) are provided with splicing grooves (213) for the snap-fit ​​block (34) to be inserted. The main rod section (21) is provided with a connecting hole (212) that is slidably connected to the control rod (31). The connecting hole (212) is connected to the splicing groove (213). The arc-shaped snap-fit ​​block (32) is slidably connected to the groove wall of the splicing groove (213) and connected to the control rod (31). The two ends of the splicing spring (33) are respectively connected to the end face of the arc-shaped snap-fit ​​block (32) facing the control rod (31) and the groove wall of the connecting hole (212) of the splicing groove (213). The snap-fit ​​block (34) is provided with a snap-fit ​​groove (341) that engages with the arc surface of the arc-shaped snap-fit ​​block (32).

5. A portable stretching device according to claim 2, characterized in that: The stretching plate (4) includes a main plate (41) filled with therapeutic stones. The main plate (41) has a first locking strip (42) on the side away from the adjacent main plate (41) that engages with the support rod (1) or the stretching rod (6). The main plate (41) has a second locking strip (43) on the side away from the telescopic rod that engages with the anti-slip rod sleeve (9). Between two adjacent main plates (41), one main plate (41) has a third locking strip (44), and the other main plate (41) has a third groove (45) that engages with the third locking strip (44).

6. A portable stretching device according to claim 1, characterized in that: The support leg (8) includes a hinged support rod (81), a connecting rod (82), an anti-slip plate (83), a mounting slider (84), and a control spring (85); A hinge (7) is connected between the hinged support rod (81) and the support rod (1). The connecting rod (82) is connected to the hinged support rod (81) and has a sliding groove (87) that is vertically connected to the mounting slider. The bottom of the mounting slider (84) is connected to the anti-slip plate (83). One end of the control spring (85) is connected to the bottom of the sliding groove (87) and the other end is connected to the mounting slider (84). The bottom of the connecting rod (82) has a removal groove (86) for the anti-slip plate (83) to slide out. The anti-slip rod sleeve (9) is provided with a control rod (93). When the control rod (93) is inserted into the sliding groove (87), the anti-slip plate (83) slides out of the removal groove (86).

7. A portable stretching device according to claim 6, characterized in that: The anti-slip sleeve (9) has a connecting groove (91) along its own axis for the connecting rod (82) to slide into. The bottom of the anti-slip sleeve (9) also has a control through groove (92) for the anti-slip plate (83) to move out. The bottom of the control rod (93) in the connecting groove (91) is gradually inclined from top to bottom along the direction close to the control through groove (92). The top of the mounting slider (84) is an inclined surface that matches the bottom of the control rod (93).

8. A portable stretching device according to claim 7, characterized in that: The bottom of the anti-slip sleeve (9) is provided with an anti-slip pad (95). The end face of the anti-slip sleeve (9) away from the control through groove (92) is provided with a second sliding groove (94) that engages with the second locking strip (43). The anti-slip sleeve (9) is provided with an assembly strip (96) and an assembly groove (97) on both sides along the opening direction of the connecting groove (91) for engaging with the adjacent anti-slip sleeve (9). The support rod (1) is provided with a locking strip that matches the assembly groove (97). The tension rod (6) is provided with a locking groove (341) that matches the assembly strip (96).

9. A method of using a portable stretching device, applied to any one of the portable stretching devices described in claims 1-8, comprising the following steps: When the device transitions from the cushion state to the stretch state: Step 1: After putting the anti-slip rod sleeve (9) on the support leg (8), raise the support rod (1) on the ground. Step 2: The bottom of the support rod (1) is engaged with the telescopic rod assembly (2), and the top of the tension rod (6) is engaged with the telescopic rod assembly (2). Step 3: Adjust the length of the telescopic rod and the placement angle of the tension plate (4) according to the requirements; When the device transitions from the stretched state to the cushion state: Step 1: Fold up the telescopic rod assembly (2) and the support legs (8), and splice multiple tension plates (4) into a seat cushion; Step 2: The support rod (1) and tension rod (6) are reconnected with the telescopic rod assembly (2) in different directions, and the support rod (1) and tension rod (6) are engaged with the side wall of the tension plate (4) that forms the seat cushion. Step 3: The anti-slip rod sleeve (9) is snapped into the side of the stretch plate (4) that forms the seat cushion away from the telescopic rod to fix the four perimeters of the seat cushion.

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