Intelligent adjusting strength training rehabilitation device

Abstract

The utility model provides an intelligent adjusting strength training rehabilitation device, and relates to the field of strength training equipment, the intelligent adjusting strength training rehabilitation device comprises a hinge plate, the two sides of the hinge plate are provided with mounting assemblies, the two mounting assemblies are symmetrically arranged, the front ends of the mounting assemblies are provided with connecting assemblies, and the front ends of the connecting assemblies are provided with handheld assemblies; a contact piece is arranged at the rear end of the mounting assembly, a supporting plate is arranged at the bottom end of the mounting assembly, a supporting assembly is arranged at the top end of the mounting assembly, a fixing assembly is arranged outside the mounting assembly, and a replacement assembly is arranged in front of the handheld assembly. Through the replacement assembly and the supporting assembly, a hand training mode can be converted into a deep squat training mode by placing the mounting assembly underground, supporting through the supporting assembly and replacing the handheld assembly with the replacement assembly, the utilization rate of equipment is increased, and the purchase cost and the use space of a user are reduced.

Description

Technical Field

[0001] The utility model relates to the field of strength training equipment, in particular to an intelligently adjustable strength training and rehabilitation device. Background Art

[0002] With the acceleration of the pace of modern life and the improvement of people's health awareness, strength training, as an important means to enhance muscle strength, improve body shape and improve athletic performance, has attracted more and more attention.

[0003] Traditional strength training equipment often has a single function and can only meet the training needs of specific parts, such as hands or legs; users need to purchase multiple devices to complete a full-body training plan, which not only increases costs but also takes up more space.

[0004] Therefore, we have made improvements to this and proposed an intelligent adjustment strength training rehabilitation device. Summary of the Invention

[0005] The purpose of the utility model is to solve the problem that the existing strength training equipment has a single function.

[0006] In order to achieve the above-mentioned purpose of the invention and improve the above-mentioned problem, the utility model provides an intelligent adjustable strength training and rehabilitation device, including a hinged plate, both sides of the hinged plate are provided with mounting components, the two mounting components are symmetrically arranged, the front end of the mounting component is provided with a connecting component, the front end of the connecting component is provided with a hand-grip component, the rear end of the mounting component is provided with a contact piece, the bottom end of the mounting component is provided with a support plate, the top end of the mounting component is provided with a support component, the outside of the mounting component is provided with a fixing component, and the front of the hand-grip component is provided with a replacement component.

[0007] As a preferred technical solution of the present application, the two mounting assemblies include a No. 1 mounting shell hingedly connected to both sides of the hinge plate, a No. 2 mounting shell is fixedly provided on the side of the No. 1 mounting shell away from the hinge plate, the No. 2 mounting shell is connected to the interior of the No. 1 mounting shell, and the support plate is fixed to the bottom end of the No. 1 mounting shell;

[0008] A generator is provided inside the No. 2 mounting shell, and an electric motor is fixedly provided on one side of the generator close to the hinged plate. A connecting roller is fixedly provided at the output end of the motor. The output end of the generator is fixedly connected to the output end of the motor through the motor. When the motor is started, its output end rotates, and at the same time drives the output end of the generator to rotate, and generates electricity through the generator. A controller and a battery are also provided inside the No. 2 mounting shell, and the battery is electrically connected to the generator and the motor through the controller. A number of buttons and a display screen are provided at the front end of the No. 2 mounting shell, and the display screen is electrically connected to the controller, and the buttons are electrically connected to the generator through the controller.

[0009] As a preferred technical solution of the present application, the connection assembly includes a pull rope located at the front end of the No. 2 mounting shell, one end of the pull rope is fixedly provided with a No. 1 connecting ring, and the front end of the No. 1 connecting ring is provided with a lock buckle;

[0010] The output end of the motor is provided with a connecting roller, and a speed reducer and a tension sensor are provided between the connecting roller and the output end of the motor. The connecting roller is connected to the output end of the motor via the speed reducer, and the pull rope is fixedly connected to the outer side of the connecting roller. When the user pulls the pull rope, the output end of the motor and the generator is driven to accelerate rotation through the speed reducer, so that the generator converts more electrical energy. The recovered AC power is converted into DC power by the controller and then transmitted to the inside of the battery for storage. When pulling back, the battery provides electrical energy to the motor, driving the motor to rotate. The speed reducer reduces the rotation speed of the connecting roller, so that the pull rope is pulled back through the connecting roller. The connecting roller is located on the side of the motor close to the hinged plate.

[0011] The tension sensor is electrically connected to the display screen through the controller, and the tension during the pulling process is detected by the tension sensor, and the result is displayed on the display screen. A counting sensor is provided inside the second mounting shell, and the counting sensor is electrically connected to the display screen through the controller, and the number of times the user pulls back and forth is detected by the counting sensor, and the result is displayed on the display screen.

[0012] As a preferred technical solution of the present application, the hand grip assembly includes a No. 2 connecting ring connected to the lock buckle, a hand grip frame is fixedly provided at the front end of the No. 2 connecting ring, and a handle is fixedly provided at the front end of the hand grip frame.

[0013] As a preferred technical solution of the present application, the fixing assembly includes a fixing frame located at the rear end of the No. 1 mounting shell, a fixing bolt is provided at the front end of the fixing frame, the end of the fixing bolt passes through the fixing frame and extends to the rear end of the fixing frame, a connecting frame is hingedly provided above the front end of the fixing frame, a hand-tightening bolt is provided below the front end of the connecting frame, and the end of the hand-tightening bolt passes through the connecting frame and is threadedly connected to the fixing frame.

[0014] As a preferred technical solution of the present application, a plurality of card slots are provided at the top of the No. 1 mounting shell, and the support assembly includes a disassembly plate located at the top of the No. 1 mounting shell, a connecting groove is provided at the bottom end of the disassembly plate, and three card columns are fixed inside the connecting groove, and the card columns are located inside the card slot.

[0015] As a preferred technical solution of the present application, the replacement assembly includes a connecting rod, both ends of the connecting rod are fixed with a No. 3 connecting ring, and the outside of the connecting rod is fixed with a soft pad.

[0016] As a preferred technical solution of the present application, the contact member includes an anti-slip pad located at the rear end of the mounting assembly, and the anti-slip pad is fixed to the rear ends of the No. 1 mounting shell and the No. 2 mounting shell.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In the scheme of this application:

[0019] 1. By setting up the replacement component and the support component, it is possible to switch from the hand training mode to the squat training mode by placing the installation component underground, supporting it with the support component, and replacing the hand grip component with the replacement component. This not only improves the utilization rate of the equipment, but also reduces the user's purchase cost and usage space, and solves the problem of single function of strength training equipment in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the intelligent adjustment strength training and rehabilitation device provided in this application;

[0021] Figure 2 A schematic diagram of the structure of the support assembly in the intelligent adjustment strength training and rehabilitation device provided in this application;

[0022] Figure 3 This is a schematic diagram of the rear structure of the installation components in the intelligent adjustment strength training and rehabilitation device provided in this application;

[0023] Figure 4 for Figure 3 A magnified view of middle A;

[0024] Figure 5 This is a schematic diagram of the structure of the fixed components in the intelligent adjustment strength training and rehabilitation device provided in this application;

[0025] Figure 6 This is a schematic diagram of the internal structure of the installation components in the intelligent adjustment strength training and rehabilitation device provided in this application.

[0026] Indicated in the figure:

[0027] 1. Hinge plate; 2. Mounting assembly; 201. Mounting shell No. 1; 202. Mounting shell No. 2; 203. Display screen; 204. Button; 3. Connecting assembly; 301. Pull rope; 302. Connecting ring No. 1; 303. Lock; 4. Hand grip assembly; 401. Connecting ring No. 2; 402. Hand grip frame; 403. Handle; 501. Support plate; 6. Fixing assembly; 601. Fixing frame; 602. Fixing bolt; 603. Connecting frame; 604. Hand tightening bolt; 7. Support assembly; 701. Disassembly plate; 702. Connecting slot; 703. Clamping column; 704. Clamping slot; 801. Anti-slip pad; 9. Replacement assembly; 901. Connecting rod; 902. Cushion; 903. Connecting ring No. 3; 11. Motor; 12. Generator; 13. Connecting roller. DETAILED DESCRIPTION

[0028] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] Example 1

[0033] Please refer to Figure 1 and Figure 4, an intelligent adjustable strength training and rehabilitation device, which includes a hinged plate 1, with mounting components 2 on both sides of the hinged plate 1, the two mounting components 2 are symmetrically arranged, the front end of the mounting component 2 is provided with a connecting component 3, the front end of the connecting component 3 is provided with a hand grip component 4, the rear end of the mounting component 2 is provided with a contact piece, the bottom end of the mounting component 2 is provided with a support plate 501, the top of the mounting component 2 is provided with a supporting component 7, the supporting component 7 is used to enable the user to place the mounting component 2 on the ground for squat training so that the user's feet contact the support component 7, thereby playing a supporting role, the outside of the mounting component 2 is provided with a fixing component 6, and the front of the hand grip component 4 is provided with a replacement component 9, the replacement component 9 is used to replace the two hand grip components 4, so that the user can switch the vertical grip of the hand grip component 4 to a horizontal grip, or place the mounting component 2 on the ground and use the replacement component 9 to perform squat training.

[0034] Further, such as Figure 1 、 Figure 3 、 Figure 4 and Figure 6 As shown, the two mounting assemblies 2 include a first mounting shell 201 hinged to both sides of the hinge plate 1. Through the hinge, the user can fold the mounting assemblies 2 on both sides so that the two mounting assemblies 2 fit together for storage. A second mounting shell 202 is fixed to the side of the first mounting shell 201 away from the hinge plate 1. The second mounting shell 202 is in communication with the interior of the first mounting shell 201.

[0035] A generator 12 is provided inside the second mounting shell 202. A motor 11 is fixedly provided on one side of the generator 12 close to the hinged plate 1. A connecting roller 13 is fixedly provided at the output end of the motor 11. The output end of the generator 12 passes through the motor 11 and is fixedly connected to the output end of the motor 11. When the motor 11 is started, its output end rotates, and at the same time drives the output end of the generator 12 to rotate, generating electricity through the generator 12. A controller and a battery are also provided inside the second mounting shell 202. The battery is electrically connected to the generator 12 and the motor 11 through the controller. A number of buttons 204 and a display screen 203 are provided at the front end of the second mounting shell 202. The display screen 203 is electrically connected to the controller, and the buttons 204 are electrically connected to the generator 12 through the controller.

[0036] By operating one of the buttons 204 to select rehabilitation mode, boy mode and girl mode, etc., and directly adjusting the gear through other buttons 204, the resistance of the rotation of the generator 12 is adjusted, the force required by the user to pull the connecting component 3 through the hand-held component 4 is controlled, and the mode or gear is displayed through the display screen 203. The support plate 501 is fixed to the bottom end of the No. 1 mounting shell 201, which is used to increase the support surface when the user places the No. 1 mounting shell 201 on the ground to prevent displacement or flipping of the No. 1 mounting shell 201.

[0037] Further, such as Figure 1 and Figure 6 As shown, the connecting assembly 3 includes a pull rope 301 located at the front end of the No. 2 mounting shell 202, one end of the pull rope 301 is fixedly provided with a No. 1 connecting ring 302, and the output end of the motor 11 is provided with a connecting roller 13, a speed reduction device and a tension sensor are provided between the connecting roller 13 and the output end of the motor 11, and the connecting roller 13 is connected to the output end of the motor 11 through the speed reduction device, and the pull rope 301 is fixedly connected to the outer side of the connecting roller 13. When the user pulls the pull rope 301, the output ends of the motor 11 and the generator 12 are driven to accelerate rotation through the speed reduction device, so that the generator 12 converts more electrical energy, and the recovered AC power is converted into DC power by the controller and transmitted to the inside of the battery for storage. When pulling back, the battery provides electrical energy to the motor 11, driving the motor 11 to rotate, and the rotation speed of the connecting roller 13 is reduced by the speed reduction device, so that the pull rope 301 is pulled back through the connecting roller 13, and the connecting roller 13 is located on the side of the motor 11 close to the hinged plate 1;

[0038] The reduction device is specifically a planetary reducer, which provides greater resistance when the user pulls the pull rope 301 through the meshing between gears, and makes the output end of the generator 12 rotate faster, thereby generating more electricity;

[0039] The tension sensor is electrically connected to the display screen 203 via the controller, and detects the tension during the pulling process, and displays the result on the display screen 203. A counting sensor is provided inside the second mounting shell 202, and the counting sensor is electrically connected to the display screen 203 via the controller, and detects the number of times the user pulls back and forth, and displays the result on the display screen 203.

[0040] When the user pulls the pull rope 301 through the hand-grip assembly 4, the output ends of the generator 12 and the motor 11 are driven to rotate, thereby generating electricity through the generator 12, and the generated electricity is used to drive the motor 11 to rotate through the controller and the battery, pulling back a part of the pull rope 301 pulled out by the user, thereby achieving the reciprocating operation required for exercise. A lock buckle 303 is provided at the front end of the No. 1 connecting ring 302, which is connected to the hand-grip assembly 4 or the replacement assembly 9 through the lock buckle 303.

[0041] Further, such as Figure 1 As shown, the hand-grip assembly 4 includes a No. 2 connecting ring 401 connected to the lock buckle 303. The lock buckle 303 is connected by buckling the No. 2 connecting ring 401. A hand-grip frame 402 is fixed at the front end of the hand-grip frame 402. A handle 403 is fixed at the front end of the hand-grip frame 402. The handle 403 is used to facilitate the user to grasp.

[0042] Example 2

[0043] The intelligent adjustment strength training rehabilitation device provided in Example 1 is further optimized. Specifically, Figure 1 and Figure 5 As shown, the fixing component 6 includes a fixing frame 601 located at the rear end of the No. 1 mounting shell 201, and a fixing bolt 602 is provided at the front end of the fixing frame 601. The end of the fixing bolt 602 passes through the fixing frame 601 and extends to the rear end of the fixing frame 601 for fixing to the wall, and cooperates with the connecting frame 603 and the hand-tightening bolt 604 to fix the mounting component 2. A connecting frame 603 is hingedly provided above the front end of the fixing frame 601, and a hand-tightening bolt 604 is provided below the front end of the connecting frame 603. The end of the hand-tightening bolt 604 passes through the connecting frame 603 and is threadedly connected to the fixing frame 601. The connection between the bottom of the connecting frame 603 and the fixing frame 601 is controlled by rotating the hand-tightening bolt 604.

[0044] Further, such as Figure 1 and Figure 2 As shown, a plurality of slots 704 are provided at the top of the No. 1 mounting shell 201. The plurality of slots 704 enable the support assembly 7 to be adjusted to more positions, thereby adapting to users of more different body shapes. The support assembly 7 includes a disassembly plate 701 located at the top of the No. 1 mounting shell 201. A connecting slot 702 is provided at the bottom end of the disassembly plate 701. The connecting slot 702 is used to contact the No. 1 mounting shell 201. The arc groove of the connecting slot 702 can better fit the rounded corner of the top of the No. 1 mounting shell 201, thereby increasing the contact area and improving stability. Three clamping columns 703 are fixedly provided inside the connecting slot 702. The clamping column 703 is located inside the clamping slot 704. The three clamping columns 703 are respectively located inside any three connected clamping slots 704 among the plurality of clamping slots 704.

[0045] Further, such as Figure 1 As shown, the replacement component 9 includes a connecting rod 901, and both ends of the connecting rod 901 are fixed with No. 3 connecting rings 903, and the two No. 3 connecting rings 903 are used to connect with the two lock buckles 303. The outside of the connecting rod 901 is fixed with a soft pad 902, and the soft pad 902 is used to make the user more comfortable when grasping or touching.

[0046] Example 3

[0047] The intelligent adjustment strength training rehabilitation device provided in Example 1 and Example 2 is further optimized, such as Figure 3 As shown, the contact member includes an anti-slip pad 801 located at the rear end of the mounting assembly 2. The anti-slip pad 801 is used to allow the user to contact the ground through the anti-slip pad 801 when placing the mounting assembly 2 on the ground, thereby avoiding wear caused by direct contact between the mounting assembly 2 and the ground and playing a protective role. The anti-slip pad 801 is fixed to the rear ends of the No. 1 mounting shell 201 and the No. 2 mounting shell 202.

[0048] The use process of the intelligent adjustment strength training rehabilitation device provided by the utility model is as follows:

[0049] When hand training is required, the two No. 1 mounting shells 201 are placed inside the two fixing frames 601 respectively, and the connecting frame 603 is covered. The hand-tightening bolts 604 are turned to fix it. Then, the button 204 is pressed to adjust the difficulty to the required level. Then, the handle 403 is grasped and pulled to generate electricity through the generator 12. Then, the controller is used to start the motor 11 to rotate its output end, and the pull rope 301 is pulled back. The hand training is performed back and forth.

[0050] When lower limb training is required, such as squats, the installation component 2 is removed through the fixing component 6, and the installation component 2 is placed on the ground, supported by the anti-slip pad 801 and the support plate 501 in contact with the ground, and then the removal plate 701 is inserted into the required position through the clamping column 703, and the two hand-grip components 4 are replaced through the lock 303, and the No. 3 connecting rings 903 on both sides of the connecting rod 901 are respectively connected to the two locks 303, and then the user's feet stand on the two removal plates 701 and the No. 1 installation shell 201, clamp the connecting rod 901 around the neck, hold the connecting rod 901 with both hands, and increase the difficulty of the user's squat through the resistance of the generator 12, the motor 11 and the reduction device, thereby performing lower limb training.

[0051] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0052] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the present invention patent.

Claims

1. Intelligent adjustment strength training and rehabilitation device, characterized in that: The invention comprises a hinged plate (1), wherein both sides of the hinged plate (1) are provided with mounting components (2), the two mounting components (2) are symmetrically arranged, the front end of the mounting component (2) is provided with a connecting component (3), the front end of the connecting component (3) is provided with a hand-grip component (4), the rear end of the mounting component (2) is provided with a contact piece, the bottom end of the mounting component (2) is provided with a support plate (501), the top end of the mounting component (2) is provided with a supporting component (7), the outside of the mounting component (2) is provided with a fixing component (6), and the front of the hand-grip component (4) is provided with a replacement component (9).

2. The intelligent strength training and rehabilitation device according to claim 1, characterized in that: The two mounting assemblies (2) include a No. 1 mounting shell (201) hinged to both sides of the hinge plate (1), a No. 2 mounting shell (202) being fixedly provided on one side of the No. 1 mounting shell (201) away from the hinge plate (1), the No. 2 mounting shell (202) being in communication with the interior of the No. 1 mounting shell (201), and the support plate (501) being fixed to the bottom end of the No. 1 mounting shell (201); A generator (12) is provided inside the second mounting shell (202), and a motor (11) is fixedly provided on a side of the generator (12) close to the hinge plate (1), and a connecting roller (13) is fixedly provided at the output end of the motor (11), and the output end of the generator (12) is fixedly connected to the output end of the motor (11) through the motor (11). When the motor (11) is started, its output end rotates, and at the same time drives the output end of the generator (12) to rotate, and electricity is generated through the generator (12). A controller and a battery are also provided inside the second mounting shell (202), and the battery is electrically connected to the generator (12) and the motor (11) through the controller. A plurality of buttons (204) and a display screen (203) are provided at the front end of the second mounting shell (202), and the display screen (203) is electrically connected to the controller, and the buttons (204) are electrically connected to the generator (12) through the controller.

3. The intelligent strength training and rehabilitation device according to claim 2, characterized in that: The connecting assembly (3) comprises a drawstring (301) located at the front end of the second mounting shell (202), one end of the drawstring (301) is fixedly provided with a first connecting ring (302), and the front end of the first connecting ring (302) is provided with a lock buckle (303); The output end of the motor (11) is provided with a connecting roller (13), and a deceleration device and a tension sensor are provided between the connecting roller (13) and the output end of the motor (11). The connecting roller (13) and the output end of the motor (11) are connected via the deceleration device. The pull rope (301) is fixedly connected to the outer side of the connecting roller (13). When the user pulls the pull rope (301), the output end of the motor (11) and the generator (12) are driven to rotate faster via the deceleration device, so that the generator (12) converts more electric energy. The recovered alternating current is converted into direct current by the controller and then transmitted to the inside of the battery for storage. When the motor (11) is pulled back, the battery provides electric energy to drive the motor (11) to rotate. The rotation speed of the connecting roller (13) is reduced by the deceleration device, so that the pull rope (301) is pulled back via the connecting roller (13). The connecting roller (13) is located on the side of the motor (11) close to the hinge plate (1). The tension sensor is electrically connected to the display screen (203) through the controller, and the tension during the pulling process is detected by the tension sensor, and the result is displayed on the display screen (203). A counting sensor is provided inside the second mounting shell (202), and the counting sensor is electrically connected to the display screen (203) through the controller, and the number of times the user pulls back and forth is detected by the counting sensor, and the result is displayed on the display screen (203).

4. The intelligent strength training and rehabilitation device according to claim 3, characterized in that: The hand grip assembly (4) comprises a second connecting ring (401) connected to the lock buckle (303), a hand grip frame (402) is fixedly provided at the front end of the second connecting ring (401), and a handle (403) is fixedly provided at the front end of the hand grip frame (402).

5. The intelligent strength training and rehabilitation device according to claim 4, characterized in that: The fixing assembly (6) comprises a fixing frame (601) located at the rear end of the No. 1 mounting shell (201), a fixing bolt (602) is provided at the front end of the fixing frame (601), an end of the fixing bolt (602) passes through the fixing frame (601) and extends to the rear end of the fixing frame (601), a connecting frame (603) is hingedly provided above the front end of the fixing frame (601), a hand-tightening bolt (604) is provided below the front end of the connecting frame (603), and an end of the hand-tightening bolt (604) passes through the connecting frame (603) and is threadedly connected to the fixing frame (601).

6. The intelligent strength training and rehabilitation device according to claim 5, characterized in that: The top of the No. 1 mounting shell (201) is provided with a plurality of card slots (704), the support assembly (7) comprises a disassembly plate (701) located at the top of the No. 1 mounting shell (201), a connecting slot (702) is provided at the bottom of the disassembly plate (701), three card columns (703) are fixedly provided inside the connecting slot (702), and the card columns (703) are located inside the card slot (704).

7. The intelligent strength training and rehabilitation device according to claim 6, characterized in that: The replacement assembly (9) comprises a connecting rod (901), both ends of the connecting rod (901) are fixedly provided with a No. 3 connecting ring (903), and the outside of the connecting rod (901) is fixedly provided with a soft cushion (902).

8. The intelligent strength training and rehabilitation device according to claim 7, characterized in that: The contact member comprises an anti-skid pad (801) located at the rear end of the mounting assembly (2), and the anti-skid pad (801) is fixed to the rear ends of the first mounting shell (201) and the second mounting shell (202).

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