Sports arm strength exerciser

Abstract

The utility model provides a sports arm strength exerciser which comprises a bearing frame, a force applying assembly is arranged on the bearing frame, and the force applying assembly is connected with a holding part through a transmission assembly. The holding part drives the force applying assembly through the transmission assembly to overcome reaction or gravity generated by the force applying assembly to move. The air cooling assembly is connected to the bearing frame, the air cooling assembly is connected with the holding part, a piston structure is arranged on the air cooling assembly, a piston plate in the piston structure is driven to move in the moving process of the holding part, the piston plate moves to generate airflow, and the generated airflow passes through the holding part. And air cooling can prevent hands of the exerciser from sweating, so that the experience of the exerciser in the using process is improved, and maintenance personnel can conveniently clean the apparatus while the apparatus is prevented from being polluted by sweating.

Description

Technical Field

[0001] This utility model relates to equipment for physical exercise, specifically a physical arm strength training device. Background Technology

[0002] Arm strength training is a common type of exercise in physical education. It can be achieved through a series of exercises targeting the arm muscles. These exercises typically include equipment such as dumbbells, barbells, and resistance bands, or they can be done through bodyweight training.

[0003] Generally speaking, arm strength training equipment can be divided into two types: one is to overcome the gravity of a heavy object, and the other is to overcome the rebound force of springs or other elastic components. Both types of equipment require the exerciser to hold the corresponding part of the body for the exercise. Since exercise is a continuous activity, the contact surface between the exerciser's hands and the grip may sweat, affecting the exerciser's experience.

[0004] Therefore, a sports arm strength training device is provided to address the above problems. Utility Model Content

[0005] This invention provides a sports arm strength training device to address the problem that sweating may occur on the contact surface between the exerciser's hand and the grip, affecting the exerciser's experience.

[0006] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0007] This utility model provides a sports arm strength training device, including a support frame, on which a force-applying component is provided, and the force-applying component is connected to the grip part through a transmission component;

[0008] The gripping part drives the force-applying component through the transmission component to overcome the reaction force or gravity movement generated by the force-applying component;

[0009] An air-cooled cooling component is connected to a support frame and is interconnected with a gripping part. The air-cooled cooling component is provided with a piston structure. During the movement of the gripping part, the piston plate in the piston structure moves, and the movement of the piston plate generates airflow, which passes through the gripping part.

[0010] In this technical solution, the support frame includes a top plate and a bottom plate, and a plurality of mounting rods are fixed between the top plate and the bottom plate. A gripping part is fixed on one of the mounting rods by a fixing component. A force-applying component is provided on the bottom plate, and the force-applying component includes a plurality of counterweight plates stacked together and vertically distributed.

[0011] A synchronous vertical rod is inserted into the center of the counterweight plate and passes through all the stacked counterweight blocks. The synchronous vertical rod has through holes matching the number of counterweight blocks. Each counterweight block has a horizontally arranged insertion hole into which an adjusting pin can be inserted. The adjusting pin is inserted into the insertion hole and passes through a corresponding through hole. The top of the pin vertical rod is connected to the gripping part through a transmission assembly. The air-cooling component is mounted on the fixing frame of the fixing component.

[0012] Furthermore, the transmission assembly includes a transmission rope, one end of which is fixed to the top of the pin vertical rod, and the other end of which passes sequentially around the guide wheel, the first fixed pulley, and the second fixed pulley and connects to the gripping part. The guide wheel, the first fixed pulley, and the second fixed pulley are all fixed to the top plate.

[0013] The fixing component includes a fixing frame, which is fixed to a corresponding mounting rod by a fixing pin. A connecting frame is fixed on the fixing frame, and two limiting pulleys are installed on the connecting frame. The two limiting pulleys are distributed vertically on the connecting frame, and the transmission rope passes between the two limiting pulleys.

[0014] The air-cooled cooling component includes an air storage pipe, which is fixed on a mounting frame. A piston plate is slidably connected in the inner cavity of the air storage pipe. The piston plate is a first piston plate. One end of a drive rope is fixed at the center of the side of the first piston plate away from the support frame. A limit rope is fixed at the center of the other side of the first piston plate. The limit rope is wound on a winding wheel with a coil spring. The winding wheel is installed on the outer wall of the air storage pipe.

[0015] The other end of the drive rope passes through the closed end sidewall of the air storage pipe and then through the air guide of the tubular structure to connect with the traction assembly. The air guide includes a rigid pipe, a flexible pipe, and a corrugated pipe. The rigid pipe is connected to the closed end of the air storage pipe. One end of the rigid pipe is connected to the closed end sidewall of the air storage pipe. The other end of the rigid pipe passes through the limiting cavity and connects to one end of the flexible pipe. The other end of the flexible pipe is connected to one end of the retractable corrugated pipe. The other end of the corrugated pipe is connected to the first air blowing cavity on the grip through another section of flexible or rigid pipe.

[0016] Specifically, the gripping part is a rectangular gripping frame, the first air blowing cavity is opened on the inner wall of the gripping frame, and a number of ventilation holes are opened on the side wall of the gripping frame where the first air blowing cavity is located.

[0017] In this technical solution, the support frame includes two symmetrically arranged mounting plates, and the top and bottom of the two mounting plates are fixedly connected by connecting plates;

[0018] A connecting shaft is provided, with its two ends fixed to the center of two mounting plates respectively. Two rotatable rings are fitted onto the connecting shaft.

[0019] A limiting tube with an arc-shaped structure is fixed to the bottom side wall of the mounting plate located at the bottom by a fixing rod, and the center of the limiting tube coincides with the center of the connecting circular shaft.

[0020] The limiting tube is internally equipped with a force-applying component and a transmission component.

[0021] Furthermore, the force-applying component includes a support plate and an arc-shaped spring. The support plate is fixed at the center of the inner cavity of the limiting tube, and arc-shaped springs are fixed on both sides of the support plate.

[0022] The transmission assembly includes two transmission sliders and two transmission arc rods. The two transmission sliders are slidably connected in the inner cavities of the limiting tubes on both sides of the bearing plate, and the transmission sliders are connected to the corresponding arc springs.

[0023] The transmission slider is connected to the transmission arc plate, the transmission arc plate is connected to the corresponding transmission rod, the two transmission rods are respectively connected to the two rotating rings, the two transmission rods form a "V" shaped structure, and the ends of the two transmission rods are fixed with a gripping part.

[0024] Specifically, there are two air-cooled cooling components, and the two air-cooled cooling components are symmetrically arranged on the limiting tube. The air-cooled cooling component includes a driving arc rod. One end of the driving arc rod is fixed to the bearing plate, and the other end of the driving arc rod extends through the side wall of the transmission arc rod to the inside of the second air blowing chamber inside the transmission arc rod. A piston plate is slidably connected inside the cavity of the second air blowing chamber. The piston plate is a second piston plate. The second piston plate is fixedly connected to the end of the driving arc plate. The second air blowing chamber is connected to the gripping part through an air guide pipe.

[0025] The grip part is a grip rod, the grip rod has a hollow structure inside, and the inner cavity of the grip rod is connected to the air guide pipe. The air guide pipe is opened inside the transmission arc rod and the transmission rod, and multiple ventilation holes are opened on the surface of the grip rod.

[0026] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0027] The positive and progressive effects of this utility model are as follows:

[0028] As the grip moves, it drives the piston plate in the piston structure to move in a specific direction. The airflow generated by the movement of the piston plate passes through the grip, thereby cooling the exerciser's hands. At the same time, the air-cooling can prevent the exerciser's hands from sweating, improve the user experience, prevent sweat from contaminating the equipment, and make it easier for maintenance personnel to clean the equipment. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the exercise device of this utility model, Example 1.

[0030] Figure 2 This is a partial cross-sectional structural schematic diagram of an embodiment of the exercise device of this utility model;

[0031] Figure 3 This is a schematic diagram of the overall structure of the exercise device of this utility model, Example 2;

[0032] Figure 4 This is a schematic diagram of the air-cooled cooling component structure in Embodiment 2 of this utility model;

[0033] Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure at point A;

[0034] Figure 6 This is a schematic diagram of the limiting pulley and limiting plate structure in Embodiment 2 of this utility model.

[0035] Explanation of reference numerals in the attached figures

[0036] 1. Support frame; 11. Top plate; 12. Bottom plate; 13. Mounting rod; 14. Mounting plate; 15. Connecting plate; 16. Connecting shaft; 17. Rotating ring; 18. Fixing rod; 19. Limiting tube;

[0037] 2. Force-giving component; 21. Counterweight plate; 22. Insertion hole; 23. Adjusting pin; 24. Synchronous vertical rod; 25. Bearing plate; 26. Curved spring;

[0038] 3. Transmission assembly; 31. Transmission rope; 32. Guide wheel; 33. First fixed pulley; 34. Second fixed pulley; 35. Transmission slider; 36. Transmission arc rod; 37. Transmission rod;

[0039] 4. Air-cooled cooling assembly; 41. Air storage pipe; 42. First piston plate; 43. Limiting rope; 431. Winding reel; 44. Drive rope; 45. Air guide section; 451. Rigid pipe; 452. Flexible pipe; 453. Corrugated pipe; 46. First air blowing chamber; 47. Drive arc rod; 48. Second piston plate; 49. Second air blowing chamber; 491. Air guide duct;

[0040] 5. Fixing components; 51. Fixing bracket; 511. Fixing pin; 52. Connecting bracket; 53. Limiting pulley; 54. Limiting plate; 55. Mounting bracket;

[0041] 6. Grip part; 61. Grip frame; 62. Grip bar. Detailed Implementation

[0042] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0043] like Figure 1 and Figure 3 As shown, the sports arm strength training device includes a support frame 1, on which a force-applying component 2 is provided, and the force-applying component 2 is connected to the grip part 6 through a transmission component 3;

[0044] The gripping part 6 drives the force-applying component 2 through the transmission component 3 to overcome the reaction force or gravity generated by the force-applying component 2 and move accordingly.

[0045] The air-cooled cooling component 4 is connected to the support frame 1 and is connected to the gripping part 6. The air-cooled cooling component 4 is provided with a piston structure. When the gripping part 6 moves, it drives the piston plate in the piston structure to move. The movement of the piston plate generates airflow, and the generated airflow passes through the gripping part 6.

[0046] The exerciser holds the grip part 6 with their hands and then pulls or pushes it. The moving grip part 6 drives the force-applying component 2 through the transmission component 3 to overcome the reaction force or gravity generated by the force-applying component 2 itself, thereby exercising the arms. During the movement of the grip part 6, the piston plate in the piston structure moves in a directional manner. The airflow generated by the movement of the piston plate passes through the grip part 6, thereby cooling the exerciser's hands. At the same time, the air cooling can prevent the exerciser's hands from sweating, improve the user experience, prevent sweat from contaminating the equipment, and facilitate the cleaning of the equipment by maintenance personnel.

[0047] The piston structure consists of a piston plate and a cavity that is slidably connected to the piston plate. The piston plate and the side wall of the cavity are connected by a sliding seal. The piston plate is surrounded by a soft rubber material, which is used for interference fit and compression sealing, similar to the piston assembly of a syringe in the prior art. The connection and sealing relationship between the piston plate and the cavity in this application only needs to reach the lowest level of sliding seal, ensuring that the piston plate can push the air in the cavity to one side to generate airflow during the movement, thereby reducing production costs.

[0048] Example 1

[0049] As one embodiment of this application, such as Figure 3 As shown, the support frame 1 includes a top plate 11 and a bottom plate 12. A plurality of mounting rods 13 are fixed between the top plate 11 and the bottom plate 12. A gripping part 6 is fixed on one of the mounting rods 13 by a fixing component 5. A force-applying component 2 is provided on the bottom plate 12. The force-applying component 2 includes a plurality of counterweight plates 21 stacked together and vertically distributed.

[0050] During exercise, the counterweight plate 21 is moved by the transmission component 3, and work is done against the gravity of the counterweight plate 21.

[0051] A synchronous vertical rod 24 is inserted into the center of the counterweight 21 and passes through all the stacked counterweights. The synchronous vertical rod 24 has through holes in the same number as the counterweights. Each counterweight has a horizontally arranged insertion hole 22, into which an adjusting pin 23 can be inserted. The adjusting pin 23 is inserted into the insertion hole 22 and passes through the corresponding through hole. Limiting rods are provided on both sides of the pin vertical rod. The limiting rods also pass through all the stacked counterweights and are fixed to the base plate 12. The top of the pin vertical rod is connected to the gripping part 6 through the transmission assembly 3. The air-cooling cooling assembly 4 is set on the fixing frame 51 of the fixing assembly 5.

[0052] By adjusting the pin 23 to insert the corresponding counterweight, the counterweight piece 21 into which the adjusting pin 23 is inserted and the counterweight piece 21 above the counterweight piece 21 are connected to the synchronous vertical rod 24, and the transmission component 3 drives the counterweight piece 21 connected to the synchronous vertical rod 24 to move upward synchronously.

[0053] The transmission assembly 3 includes a transmission rope 31. One end of the transmission rope 31 is fixed to the top of the pin vertical rod, and the other end of the transmission rope 31 passes through the guide wheel 32, the first fixed pulley 33 and the second fixed pulley 34 in sequence and is connected to the gripping part 6. The guide wheel 32, the first fixed pulley 33 and the second fixed pulley 34 are all fixed on the top plate 11.

[0054] The fixing component 5 includes a fixing frame 51, which is fixed to the corresponding mounting rod 13 by a fixing pin 511. A connecting frame 52 is fixed on the fixing frame 51, and two limiting pulleys 53 are installed on the connecting frame. The two limiting pulleys 53 are vertically distributed on the connecting frame 52. The transmission rope 31 passes between the two limiting pulleys 53. Limiting plates 54 are provided on both sides of the gap between the two limiting pulleys 53. The two limiting plates 54 and the two limiting pulleys 53 together form a limiting cavity that restricts the deviation of the transmission rope 31. The limiting plates 54 are fixed to the connecting frame 52 by a mounting frame 55. The limiting cavity can prevent the transmission rope 31 from leaving the area where the limiting pulleys 53 are located, and at the same time, it can facilitate the gripping part 6 to pull upward, horizontally, and downward.

[0055] Guided by the guide wheel 32, the first fixed pulley 33 and the second fixed pulley 34, the moving end of the transmission rope 31 connected to the synchronous vertical rod 24 changes its movable direction, making it easier to lift the force-applying component 2 to achieve the purpose of exercise.

[0056] The air-cooled cooling component 4 includes an air storage pipe 41, which is fixed on a mounting frame 51. The air storage pipe 41 is arranged horizontally, and a piston plate is slidably connected in the inner cavity of the air storage pipe 41. The piston plate is a first piston plate 42. One end of a drive rope 44 is fixed at the center of the side of the first piston plate 42 away from the support frame 1, and a limit rope 43 is fixed at the center of the other side of the first piston plate 42. The limit rope 43 is wound on a winding wheel 431 with a coil spring. The winding wheel 431 is installed on the outer wall of the air storage pipe 41 and can rotate. A rotating shaft is fixed at the center of both circular surfaces of the winding wheel 431. A coil spring is sleeved on the rotating shaft. One end of the coil spring is fixed on the winding wheel 431, and the other end of the coil spring is fixed on the rotating shaft. The rotating shaft is rotatably connected to the air storage pipe 41. Since no improvement has been made to the structure and installation method of the coil spring, it will not be described in detail here.

[0057] The other end of the drive rope 44 passes through the closed end sidewall of the air storage pipe 41 and then through the tubular air guide section 45 to connect with the traction assembly. The drive rope 44 passes through the air guide section 45 axially. One end of the air storage pipe 41 is a closed end, and the other end is an open end. The winding reel 431 is installed on the open end side of the air storage pipe 41. The air guide section 45 includes a rigid pipe 451, a flexible pipe 452, and a corrugated pipe 453. The rigid pipe 451 is connected to the closed end of the air storage pipe 41, and one end of the rigid pipe 451 is connected to the closed end sidewall of the air storage pipe 41. The connection of the air storage tube 41 is wrapped around the outside of the fine hole formed by the drive rope 44 passing through the closed end side wall of the air storage tube 41 to prevent air leakage. The other end of the rigid tube 451 passes through the limiting cavity and is connected to one end of the flexible tube 452. The other end of the flexible tube 452 is connected to one end of the retractable corrugated tube 453. The corrugated tube 453 is in a retracted state when the grip part 6 is not moved. At this time, the drive rope 44 is in a taut or straight state. The other end of the corrugated tube 453 is connected to the first air blowing cavity 46 on the grip part 6 through another section of flexible tube 452 or rigid tube 451.

[0058] In this embodiment, the exerciser moves the transmission rope 31 by gripping part 6, thereby achieving the exercise effect. During the movement of gripping part 6, the corrugated tube 453 extends, and the drive rope 44, which is in a taut or tense state, drives the first piston plate 42 to move in the cavity. The airflow generated by the first piston plate 42 during the movement passes through the air guide part 45 and is blown into the first air blowing chamber 46. It is then blown to the gripping part 6 through the ventilation holes on the first air blowing chamber 46 to achieve air cooling.

[0059] The gripping part 6 is a rectangular gripping frame 61. The first air blowing cavity 46 is opened on the inner wall of the gripping frame 61, and several ventilation holes are opened on the side wall of the gripping frame 61 where the first air blowing cavity 46 is located.

[0060] When exercising your arms, hold the grip frame 61 with your hands and pull the grip frame 61 to perform the exercise.

[0061] Example 2

[0062] As another embodiment of this application, such as Figure 1 and Figure 2 As shown, the support frame 1 includes two symmetrically arranged mounting plates 14, and the top and bottom of the two mounting plates 14 are fixedly connected by connecting plates 15.

[0063] A connecting shaft 16 is provided, with its two ends fixed to the center of two mounting plates 14 respectively. Two self-rotating rings 17 are sleeved on the connecting shaft 16.

[0064] The mounting plate 14 at the bottom has a limiting tube 19 with an arc-shaped structure fixed on its bottom side wall by a fixing rod 18. The center of the limiting tube 19 coincides with the center of the connecting circular shaft 16. With the fixing rod 18 as the axis of symmetry, the two sides of the limiting tube 19 are symmetrical to each other.

[0065] The limiting tube 19 is internally provided with a force-applying component 2 and a transmission component 3.

[0066] The transmission component 3 overcomes the reaction force generated by the force-applying component 2, thus achieving arm exercise.

[0067] The force-applying component 2 includes a support plate 25 and an arc spring 26. The support plate 25 is fixed at the center of the inner cavity of the limiting tube 19, and arc springs 26 are fixed on both sides of the support plate 25.

[0068] The transmission assembly 3 includes two transmission sliders 35 and two transmission arc rods 36. The two transmission sliders 35 are slidably connected in the inner cavity of the limiting tubes 19 on both sides of the bearing plate 25, and the transmission sliders 35 are connected to the corresponding arc springs 26. The transmission sliders 35 and the ends of the arc springs 26 can overlap or be fixedly connected.

[0069] The transmission slider 35 is connected to the transmission arc plate, and the transmission arc plate is connected to the corresponding transmission rod 37. The two transmission rods 37 are respectively connected to the two rotating rings 17. Through a connection structure similar to scissors and pliers, the two transmission rods 37 are on the same plane. The two transmission rods 37 form a "V" shape structure. The ends of the two transmission rods 37 are fixed with gripping parts 6.

[0070] During exercise, the exerciser holds both hands on the two grip parts 6 and then squeezes the grip parts 6 inwards simultaneously. The transmission rod 37 connected to the grip parts 6 also rotates accordingly. The transmission arc rod 36 on the transmission rod 37 slides inside the limiting tube 19 through the transmission slider 35. During the sliding process, the transmission slider 35 squeezes the arc spring 26, and the exercise is achieved by overcoming the rebound force of the arc spring 26.

[0071] The transmission arc rod 36, the drive arc rod 47, the arc spring 26, and the limiting tube 19 are all set at the same center.

[0072] There are two air-cooled cooling components 4, and the two air-cooled cooling components 4 are symmetrically arranged on the limiting tube 19. The air-cooled cooling component 4 includes a driving arc rod 47, which passes through the arc spring 26 or is located on one side of the arc spring 26. One end of the driving arc rod 47 is fixed on the bearing plate 25, and the other end of the driving arc rod 47 extends through the side wall of the transmission arc rod 36 to the interior of the second air blowing chamber 49 inside the transmission arc rod 36. A piston plate is slidably connected inside the cavity of the second air blowing chamber 49. The piston plate is the second piston plate 48. The second piston plate 48 is fixedly connected to the end of the driving arc plate. The second air blowing chamber 49 is connected to the gripping part 6 through the air guide pipe 491.

[0073] The gripping part 6 is a gripping rod 62. The gripping rod 62 has a hollow structure inside, and the inner cavity of the gripping rod 62 is connected to the air guide pipe 491. The air guide pipe 491 is opened inside the transmission arc rod 36 and the transmission rod 37. Multiple ventilation holes are opened on the surface of the gripping rod 62.

[0074] In this embodiment, when the grip rod 62 moves, the second piston plate 48 on the end of the drive arc rod 47 slides relative to each other inside the cavity of the second air blowing chamber 49. During the sliding process, the second piston plate 48 blows the airflow from the air guide pipe 491 into the hollow grip rod 62 and discharges it through the ventilation hole on the grip rod 62, thereby achieving air cooling of the hand.

[0075] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A sports arm strength training device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a force-applying component (2), which is connected to the gripping part (6) through a transmission component (3); The grip (6) drives the force-applying component (2) through the transmission component (3) to overcome the reaction force or gravity generated by the force-applying component (2); The air-cooled cooling component (4) is connected to the support frame (1) and the air-cooled cooling component (4) is connected to the gripping part (6). The air-cooled cooling component (4) is provided with a piston structure. When the gripping part (6) moves, it drives the piston plate in the piston structure to move. The movement of the piston plate generates airflow, and the generated airflow passes through the gripping part (6).

2. The sports arm strength training device as described in claim 1, characterized in that: The support frame (1) includes two symmetrically arranged mounting plates (14), and the top and bottom of the two mounting plates (14) are fixedly connected by a connecting plate (15); A connecting shaft (16) is provided, with its two ends fixed to the center of two mounting plates (14) respectively. Two self-rotating rings (17) are fitted onto the connecting shaft (16). The mounting plate (14) at the bottom has a limiting tube (19) with an arc-shaped structure fixed on its bottom side wall by a fixing rod (18). The center of the limiting tube (19) coincides with the center of the connecting shaft (16). The limiting tube (19) is internally provided with a force-applying component (2) and a transmission component (3).

3. The sports arm strength training device as described in claim 2, characterized in that: The force-applying component (2) includes a support plate (25) and an arc spring (26). The support plate (25) is fixed at the center of the inner cavity of the limiting tube (19), and arc springs (26) are fixed on both sides of the support plate (25). The transmission assembly (3) includes two transmission sliders (35) and two transmission arc rods (36). The two transmission sliders (35) are slidably connected in the inner cavity of the limiting tubes (19) on both sides of the bearing plate (25), and the transmission sliders (35) are connected to the corresponding arc springs (26). The transmission slider (35) is connected to the transmission arc plate, the transmission arc plate is connected to the corresponding transmission rod (37), the two transmission rods (37) are respectively connected to the two rotating rings (17), the two transmission rods (37) form a "V" shaped structure, and the ends of the two transmission rods (37) are fixed with a gripping part (6).

4. The sports arm strength training device as described in claim 3, characterized in that: There are two air-cooled cooling components (4), and the two air-cooled cooling components (4) are symmetrically arranged on the limiting tube (19). The air-cooled cooling component (4) includes a driving arc rod (47). One end of the driving arc rod (47) is fixed on the bearing plate (25), and the other end of the driving arc rod (47) extends through the side wall of the transmission arc rod (36) to the inside of the second air blowing chamber (49) inside the transmission arc rod (36). A piston plate is slidably connected inside the cavity of the second air blowing chamber (49). The piston plate is the second piston plate (48). The second piston plate (48) is fixedly connected to the end of the driving arc plate. The second air blowing chamber (49) is connected to the gripping part (6) through the air guide pipe (491). The grip part (6) is a grip rod (62). The grip rod (62) has a hollow structure inside, and the inner cavity of the grip rod (62) is connected to the air duct (491). The air duct (491) is opened inside the transmission arc rod (36) and the transmission rod (37). Multiple ventilation holes are opened on the surface of the grip rod (62).

Images