Rubber stick arm strength device

Abstract

The invention discloses a rubber stick arm strength device which comprises two supporting rods, positioning frames are arranged at the ends of the supporting rods, positioning edges are arranged in the positioning frames, and openings of the two positioning frames are oppositely arranged. The resistance rubber block is arranged between the two positioning frames, the two ends of the resistance rubber block are connected with the positioning edges in a clamped mode respectively, and the two ends of the resistance rubber block are fixedly connected with the two positioning frames respectively; the grab handle is connected to the supporting rod in a sliding mode, and a positioning mechanism is arranged between the supporting rod and the grab handle. The resistance rubber block is used for replacing a traditional spring and a hydraulic rod, resistance generated during torsion of the resistance rubber block serves as rotation resistance of the arm strength device, the exercise effect of the arm strength device is achieved, the internal structure of the arm strength device is simplified, the material cost and the worker assembly cost are reduced, and due to the fact that the resistance rubber block is located in the positioning frame, the stability of the arm strength device is improved. And the resistance rubber block is integrally formed, so that the resistance rubber block is not easy to damage even if being collided in the use process, the service life of the arm strength device is effectively guaranteed, the user experience is improved, and meanwhile, the market competitiveness is also favorably improved.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment, and in particular to a rubber stick arm exerciser. Background Technology

[0002] When using an arm exerciser, the user grips the left and right arms with both hands and applies force to bring the two arms closer together, thereby exercising the muscles in the arms and shoulders. After the user releases the force, an elastic return mechanism returns the two arms to their original separated positions. In existing technologies, the elastic return mechanism is usually a spring or a hydraulic rod. The elastic return mechanism is located at the connection between the two arms and is exposed externally, occupying a large space. In particular, the exposed hydraulic rod is easily damaged by bumps during use, affecting the user experience. At the same time, the arm exerciser has a complex structure, resulting in high material costs and labor assembly costs, making it less competitive in the current market. Summary of the Invention

[0003] To address the above problems, this invention proposes a rubber stick arm strength trainer.

[0004] The technical solution adopted in this invention is: a rubber stick arm strength trainer, comprising... Two support rods, each with a positioning frame at its end and a positioning edge inside the positioning frame, the openings of the two positioning frames facing each other; A resistance block is disposed between the two positioning frames, with both ends of the resistance block engaging with the positioning edge and both ends of the resistance block being fixedly connected to the two positioning frames. A handle is slidably connected to the support rod, and a positioning mechanism is provided between the support rod and the handle.

[0005] Furthermore, the positioning frame is fitted with a positioning shell, the positioning frame is provided with a locking through hole, the positioning shell is provided with a locking boss, the locking boss is locked in the locking through hole, the locking boss is provided with a connecting through hole, and a positioning bolt connected to the resistance rubber block passes through the connecting through hole.

[0006] Furthermore, the positioning mechanism includes a snap-fit ​​positioning rod and a plurality of positioning slots. The support rod is provided with sliding holes, and the positioning slots are spaced apart in the sliding holes. The handle is provided with positioning through holes, and the positioning rod passes through the positioning through holes and the sliding holes. A spring is provided between the positioning rod and the handle.

[0007] Furthermore, the support rod is a hollow tube, and a positioning plate is fixed inside the support rod. The positioning slot is provided on the positioning plate, and adjacent positioning slots are connected by a sliding groove. A limiting cover is provided at the top of the positioning rod, and an anti-detachment edge is provided on the positioning rod. The spring is sleeved on the positioning rod, and both ends of the spring abut against the limiting cover and the handle, respectively. The anti-detachment edge abuts against the positioning plate.

[0008] Furthermore, the positioning shell is covered with a protective shell, and the two protective shells are snapped together and fixed. The positioning shell can rotate relative to the protective shell. The top of the protective shell is provided with a relief cavity, and the relief cavity is provided with a bolt hole. The positioning bolt passes through the bolt hole into the connecting through hole. The top of the relief cavity is provided with a sealing cover. The side of the protective shell is provided with a relief groove, and the support rod is located in the relief groove.

[0009] Furthermore, one of the protective shells has a plurality of snap-fit ​​pieces at its opening, and the other protective shell has a plurality of snap-fit ​​grooves at its opening. The snap-fit ​​pieces engage with the snap-fit ​​grooves to secure the two protective shells together.

[0010] Compared with the prior art, the present invention has the following beneficial effects: This invention uses resistance blocks instead of springs and hydraulic rods. The resistance generated by the torsion of the resistance blocks serves as the rotational resistance of the arm strength device. By simplifying the internal structure of the arm strength device, material costs and worker assembly costs are reduced. Since the resistance blocks are located inside the positioning frame and are integrally molded, they will not be easily damaged even if bumped during use, effectively ensuring the service life of the arm strength device. This not only improves the user experience but also enhances market competitiveness. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a first schematic diagram of the exploded structure of the present invention; Figure 4 This is a second schematic diagram of the explosive structure of the present invention; The invention reference information is as follows: 1. Support rod; 11. Positioning frame; 111. Locking through hole; 12. Positioning edge; 13. Positioning shell; 131. Locking boss; 132. Connecting through hole; 14. Sliding hole; 15. Positioning plate; 151. Positioning groove hole; 152. Sliding groove; 16. Protective shell; 161. Relief cavity; 162. Bolt hole; 163. Sealing cover; 164. Relief groove hole; 165. Snap-fit ​​piece; 166. Snap-fit ​​groove; 2. Resistance rubber block; 21. Positioning bolt; 22. Positioning nut; 3. Handle; 31. Positioning through hole; 32. Positioning rod; 321. Anti-detachment edge; 33. Limiting cover; The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0014] This invention proposes a rubber rod arm strength trainer, comprising two support rods 1, see reference. Figure 3 , 4 The end of the support rod 1 is provided with a positioning frame 11, and the positioning frame 11 is provided with a positioning edge 12. The openings of the two positioning frames 11 are arranged facing each other, so that the inner cavities of the two positioning frames 11 can be connected and connected, and the two support rods 1 are respectively facing to the sides. See Figure 2 A resistance block 2 is provided between the two positioning frames 11. The two ends of the resistance block 2 are respectively engaged with the positioning edge 12. The two ends of the resistance block 2 are respectively fixedly connected to the two positioning frames 11. The resistance block 2 and the positioning edge 12 are preferably corresponding polygonal shapes, so as to ensure that the two ends of the resistance block 2 and the fixed positioning frame 11 rotate synchronously. When the two positioning frames 11 rotate relative to each other, the resistance block 2 is twisted to generate resistance. See Figure 1 A handle 3 is slidably connected to the support rod 1. A positioning mechanism is provided between the support rod 1 and the handle 3. The handle 3 can move along the axial direction of the support rod 1, thereby changing the torque of the arm strength device and achieving the effect of adjusting the exercise intensity.

[0015] Compared to traditional arm exercisers, this product uses resistance blocks 2 instead of springs and hydraulic levers, effectively simplifying the internal structure of the arm exerciser, thereby reducing material costs and assembly costs. Since the resistance blocks 2 are located inside the positioning frame 11 and are integrally molded, they will not be easily damaged even if bumped during use, effectively ensuring the service life of the arm exerciser.

[0016] See Figure 3 , 4 The positioning frame 11 is fitted with a positioning shell 13. The positioning frame 11 has a locking through hole 111, and the positioning shell 13 has a locking boss 131. The locking through hole 111 and the locking boss 131 are polygonal in shape. The locking boss 131 is engaged in the locking through hole 111 to prevent relative rotation between the positioning frame 11 and the positioning shell 13. The locking boss 131 has a connecting through hole 132, and a positioning bolt 21 connected to the resistance block 2 passes through the connecting through hole 132. In this embodiment, the positioning bolt 21 passes through the resistance block 2, and the end of the positioning bolt has a positioning nut 22. Through the cooperation of the positioning bolt and the positioning nut, the resistance block 2 is fixed to the positioning shell 13 and the positioning frame 11 on both sides.

[0017] See Figure 2 , 3 4. The positioning mechanism includes a positioning rod 32 and several positioning slots 151. The support rod 1 is provided with a sliding hole 14, and the positioning slots 151 are spaced apart in the sliding hole 14. The handle 3 is provided with a positioning through hole 31, and the positioning rod 32 passes through the positioning through hole 31 and also through the sliding hole 14. A spring is provided between the positioning rod 32 and the handle 3. The positioning rod 32 cooperates with the positioning slots 151 to limit the handle 3 to the support rod 1. When adjustment is required, the positioning rod 32 is pressed down to disengage it from the positioning slots 151, and the handle 3 can be pulled to move. After adjustment, the positioning rod 32 is released, and under the action of the spring, the positioning rod 32 returns to the state of being engaged with the positioning slots 151.

[0018] See Figure 3 , 4The support rod 1 is a hollow tube, and a positioning plate 15 is fixed inside the support rod 1. The positioning slot 151 is provided on the positioning plate 15. Adjacent positioning slots 151 are connected by a sliding groove 152. The positioning rod 32 moves between different positioning slots 151 through the sliding groove 152. The top of the positioning rod 32 is provided with a limiting cover 33. The positioning rod 32 is provided with an anti-detachment edge 321. The spring is sleeved on the positioning rod 32. The two ends of the spring abut against the limiting cover 33 and the handle 3, respectively. The anti-detachment edge 321 is located below the positioning plate 15. When the spring pushes the positioning rod 32 to move upward, the anti-detachment edge 321 abuts against the positioning plate 15 to prevent the positioning rod 32 from disengaging from the positioning plate 15 and to ensure the positioning effect of the positioning mechanism.

[0019] See Figure 1 , 2 The positioning shell 13 is covered with a protective shell 16, and the two protective shells 16 are interlocked and fixed. The positioning shell 13 can rotate relative to the protective shell 16. The top of the protective shell 16 is provided with a relief cavity 161, and the relief cavity 161 is provided with a bolt hole 162. The positioning bolt passes through the bolt hole 162 and extends into the connecting through hole 132. The positioning bolt only prevents the protective shell 16 from separating from the positioning shell 13, but does not restrict the relative rotation between the two. The top of the relief cavity 161 is provided with a sealing cover 163, and the side of the protective shell 16 is provided with a relief groove 164. When the user rotates the handle 3, the support rod 1 moves within the range defined by the relief groove 164.

[0020] See Figure 3 , 4 To enable the two protective shells 16 to interlock, one protective shell 16 has a plurality of interlocking pieces 165 at its opening, and the other protective shell 16 has a plurality of interlocking grooves 166 at its opening. In the combined state, the interlocking pieces 165 are interlocked in the interlocking grooves 166.

[0021] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A rubber stick arm exerciser, characterized in that: include Two support rods, each with a positioning frame at its end and a positioning edge inside the positioning frame, the openings of the two positioning frames facing each other; A resistance block is disposed between the two positioning frames, with both ends of the resistance block engaging with the positioning edge and both ends of the resistance block being fixedly connected to the two positioning frames. A handle is slidably connected to the support rod, and a positioning mechanism is provided between the support rod and the handle.

2. The rubber stick arm strength trainer according to claim 1, characterized in that: The positioning frame is fitted with a positioning shell, the positioning frame has a locking through hole, the positioning shell has a locking boss inside, the locking boss is locked in the locking through hole, the locking boss has a connecting through hole, and a positioning bolt connected to the resistance rubber block passes through the connecting through hole.

3. The rubber stick arm strength trainer according to claim 1, characterized in that: The positioning mechanism includes a snap-fit ​​positioning rod and several positioning slots. The support rod is provided with sliding holes, and the positioning slots are spaced apart in the sliding holes. The handle is provided with positioning through holes, and the positioning rod passes through the positioning through holes and the sliding holes. A spring is provided between the positioning rod and the handle.

4. The rubber stick arm strength trainer according to claim 3, characterized in that: The support rod is a hollow tube, and a positioning plate is fixed inside the support rod. The positioning slot is provided on the positioning plate, and adjacent positioning slots are connected by a sliding groove. A limiting cover is provided at the top of the positioning rod, and an anti-detachment edge is provided on the positioning rod. The spring is sleeved on the positioning rod, and the two ends of the spring abut against the limiting cover and the handle, respectively. The anti-detachment edge abuts against the positioning plate.

5. The rubber stick arm strength trainer according to claim 2, characterized in that: The positioning shell is covered with a protective shell, and the two protective shells are snapped together. The positioning shell can rotate relative to the protective shell. The top of the protective shell is provided with a relief cavity, and the relief cavity is provided with a bolt hole. The positioning bolt passes through the bolt hole into the connecting through hole. The top of the relief cavity is provided with a sealing cover. The side of the protective shell is provided with a relief groove, and the support rod is located in the relief groove.

6. The rubber stick arm strength trainer according to claim 5, characterized in that: One of the protective shells has several snap-fit ​​pieces at its opening, and the other protective shell has several snap-fit ​​grooves at its opening. The snap-fit ​​pieces snap into the snap-fit ​​grooves to fix the two protective shells in place.

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