CN111821666A

CN111821666A - Auxiliary swimming equipment

Info

Publication number: CN111821666A
Application number: CN202010858334.8A
Authority: CN
Inventors: 唐朝能
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2020-10-27

Abstract

The invention provides auxiliary swimming equipment, and relates to the field of auxiliary swimming tools. The water cutting device comprises a body, wherein a water cutting part and an assembly part are sequentially arranged on the body from top to bottom, the water cutting part comprises a first water cutting part, a second water cutting part and a third water cutting part, the first water cutting part comprises a door post and a first plate, the first plate is rotatably arranged on the right side of the door post, the second water cutting part comprises a door post, a first plate and a second plate, the first plate and the second plate are rotatably arranged on the left side and the right side of the door post, the third water cutting part comprises a door post and a second plate, the second plate is rotatably arranged on the left side of the door post, the second water cutting part is arranged between the first water cutting part and the third water cutting part, and the water cutting part is provided with a limiting part for limiting the rotating range of the first plate and the second plate; the invention uses the interaction force between the swimming pool and water, and provides a novel swimming device for swimming beginners or people who can not swim.

Description

Auxiliary swimming equipment

Technical Field

The invention relates to the field of auxiliary swimming tools, in particular to auxiliary swimming equipment.

Background

Swimming is a sport well liked by the masses, can be used as sports activities and also can be used as entertainment and leisure activities for building up bodies, and various swimming devices are invented and created for improving the swimming level and continuously breaking through the physiological limit, so as to assist the swimmers to further improve the swimming level.

Swimming practice aids are equipped with a large number of small nose clips, earplugs, large flippers, floating boards, breathing tubes, and the like.

The floating board is the most common auxiliary equipment, usually the A-shaped board is the most common, the application is wide, and beginners and people practicing basic work can not separate. The webbed foot is suitable for leg-kicking exercises of free swimming, backstroke and butterfly swimming. The action of the flippers enables a player to feel whip legging, correct legging needs to be achieved by driving the hips to drive thighs, shanks and feet to whip, the knees cannot be bent, the feet are slightly stretched and straight, the ankles swing up and down on the water surface flexibly, training with the flippers is not to pursue speed, and the flippers enable the player to remember the feeling of legging and practice leg strength; when a high-level athlete trains, the high-level athlete wears flippers to better practice explosive force in short-distance training; the beginner is not suitable to wear when the leg-kicking action is not standard. The paddling palm is used for improving the paddling force and the paddling efficiency, the resistance during paddling is obviously increased, so the paddling feeling is larger, but the correct paddling posture must be kept before the use, otherwise, the load of the shoulder is increased while the arm strength is exercised and the speed is improved, and the paddling palm is used by a beginner with caution. The breathing tube can provide supplementary for the training, and the sportsman reduces breath time keeping under the fixed circumstances of head, is absorbed in the realization technical action that lets the team member be in the water and concentrate on entirely, no matter is to turn the shoulder, to scratch, the leg, and the breathing tube can help the team member whole body and mind to be absorbed in aquatic technical action exercise anyhow.

The prior swimming equipment has limited types and has a certain limitation in application range.

Disclosure of Invention

The invention aims to provide auxiliary swimming equipment which is used together with the swimming equipment by utilizing the acting force of water, and provides a novel swimming device for a swimming beginner or a person who cannot swim.

The embodiment of the invention is realized by the following steps:

in a first aspect, an embodiment of the present application provides an auxiliary swimming device, which includes a body, wherein the body is provided with a water cutting portion and an assembling portion in sequence from top to bottom, the water cutting portion includes a first water cutting part, a second water cutting part and a third water cutting part, the first water cutting part includes a door post and a first plate, the first plate is rotatably disposed on the right side of the door post, the second water cutting part includes a door post, a first plate and a second plate, the first plate and the second plate are rotatably disposed on the left and right sides of the door post, the third water cutting part includes a door post and a second plate, the second plate is rotatably disposed on the left side of the door post, the second water cutting part is disposed between the first water cutting part and the third water cutting part, and the water cutting portion is provided with a limiting part for limiting the rotation range of the first plate and the second plate.

In some embodiments of the invention, the limiting member includes a limiting rod, and the limiting rod is respectively disposed between the first paddling member and the second paddling member, and between the second paddling member and the third paddling member.

In some embodiments of the invention, the limiting member further includes a door pressing strip, and two ends of the door pressing strip are respectively connected to the left end and the right end of the water cutting portion.

In some embodiments of the present invention, the first paddling member is provided with a hinge, the first plate is rotatably connected to the door post through the hinge, the second paddling member is provided with at least two hinges, the first plate and the second plate are rotatably connected to the door post through the hinges, respectively, the third paddling member is provided with a hinge, and the second plate is rotatably connected to the door post through the hinge.

In some embodiments of the present invention, the edges of the first plate and the second plate are arranged in a circular arc transition.

In some embodiments of the present invention, the mounting portion includes a handle and a receiving portion, and the handle is disposed on the receiving portion.

In some embodiments of the present invention, a holding cavity is formed between the accommodating portion and the handle.

In some embodiments of the present invention, the accommodating portion includes an installation portion and an attachment portion, the attachment portion is disposed below the installation portion, the water cutting portion is disposed on the installation portion, and the attachment portion is disposed in an arch shape.

In some embodiments of the present invention, the mounting portion is provided with a fixing member, and the fixing member is disposed at a position close to the bottom of the accommodating portion.

In some embodiments of the present invention, the handle is provided with an anti-slip structure.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the utility model provides an auxiliary swimming equipment, which comprises a body, the aforesaid body is by last water portion and the assembly portion of drawing that has set gradually under to, the aforesaid is drawn the water portion and is drawn the water piece including first, the second is drawn the water piece and the third is drawn the water piece, the aforesaid first part of drawing includes gatepost and first board, the aforesaid first board is rotatable to be set up in the right side of the aforesaid gatepost, the aforesaid second is drawn the water piece and include gatepost, first board and second board, the aforesaid first board and the aforesaid second board is rotatable to be set up in the left and right sides of the aforesaid gatepost, the aforesaid third is drawn the water piece and is included gatepost and second board, the aforesaid second board is rotatable to be set up in the left side of the aforesaid gatepost, the aforesaid second is drawn the water piece and is set up between the aforesaid first part of drawing water piece and the third of drawing, the aforesaid is drawn the water portion and is provided with and. The user wears the auxiliary swimming equipment on the arm through the assembling part, and in the using process, when the arm of the user is stroked forwards, the first plate and the second plate are both opened, an opening is formed between the first plate and the second plate, water flows pass through the opening, and the resistance of water to each paddling piece is reduced; when the arm is stroked backwards, the first plate and the second plate are closed, the contact area of each paddling piece with water is increased, the reaction force provided by the water acts on the paddling pieces, and the reaction force is utilized to provide power for forward paddling of a user; the limiting piece is arranged to prevent the first plate and the second plate from rotating within an overlarge range in the paddling process and adjust the first plate and the second plate within a certain range, so that the effect of the invention can be better embodied. The invention is not distinguished to wear by the left hand and the right hand, can be used by both children and adults, and particularly aims at swimming beginners or people who cannot swim, the invention is easier to get hands than most of the existing auxiliary swimming equipment, such as a swimming ring, the buoyancy of the swimming ring is large, the beginners are difficult to move forwards when wearing the swimming ring, unless the swimming ring is matched with leg water beating motion, correct leg water beating needs hip driving to drive thighs, shanks and whips, knees cannot be bent, feet are slightly stretched straight, the feet swing up and down on the water surface, ankle joints are flexible, but the invention cannot be mastered by most of the beginners, and most of people can only paddle in situ. The user only needs to wear the swimming pool on the arms and move the swimming pool, does not need to completely master the water beating motion of the legs, and the legs only need to beat water according to the functions, so that the effect of forward body stroke to a certain extent can be realized, the basic principle of swimming can be mastered, and the swimming learning speed can be accelerated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of an auxiliary swimming device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a paddling part 100 according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a lever handle 210 according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a receiving portion 220 according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a cell holding cavity 211 according to an embodiment of the present invention;

icon: 100-a water-skiing part, 110-a first skiing part, 111-a door post, 112-a first plate, 113-a hinge, 120-a second skiing part, 130-a third skiing part, 131-a second plate, 140-a limiting rod, 150-a door pressing strip, 200-an assembling part, 210-a handle, 211-a holding tank cavity, 220-an accommodating part, 221-a mounting part, 222-a joint part and 230-a fixing part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the products of the present invention are used, the terms are only used for convenience of description and simplification of the description, and do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and be operated, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of an auxiliary swimming device, and fig. 2 is a schematic structural view of a paddling part 100. The embodiment provides an auxiliary swimming device, which comprises a body, wherein the body is provided with a water cutting part 100 and a mounting part 200 from top to bottom in sequence, the water cutting part 100 includes a first water cutting member 110, a second water cutting member 120 and a third water cutting member 130, the first paddling member 110 includes a gate post 111 and a first plate 112, the first plate 112 is rotatably installed at a right side of the gate post 111, the second paddling member 120 includes a doorpost 111, a first plate 112 and a second plate 131, the first plate 112 and the second plate 131 may be rotatably provided at both left and right sides of the doorpost 111, the third paddling member 130 may include the doorpost 111 and the second plate 131, the second plate 131 is rotatably installed at the left side of the doorpost 111, the second paddling member 120 is installed between the first paddling member 110 and the third paddling member 130, the water cutting unit 100 is provided with a stopper for limiting a rotation range of the first plate 112 and the second plate 131.

In the embodiment, the first water skiing member 110 and the third water skiing member 130 are arranged at two sides of the water skiing part 100, the second water skiing member 120 is arranged between the first water skiing member 110 and the third water skiing member 130, and the second water skiing members 120 can be arranged into a plurality of groups; when the user draws backwards, the first plate 112 and the second plate 131 are closed, the contact area of each water drawing piece with water is increased, the reaction force provided by the water acts on the water drawing piece, and the reaction force is utilized to provide power for the user to draw forwards; the first plate 112 and the second plate 131 are rotatably connected to the door post 111, so that 180-degree turnover is greatly possible during use, and the effect of the present invention cannot be achieved. Therefore, the limiting member is provided to prevent the rotation range of the first plate 112 and the second plate 131 from being too large, and the effect of the present invention can be better exhibited by adjusting the rotation range within a certain range. The limiting member includes a limiting rod 140, the limiting rod 140 is respectively disposed between the first paddling member 110 and the second paddling member 120, and between the second paddling member 120 and the third paddling member 130, in this embodiment, the limiting rod 140 prevents the rotation range of the first plate 112 and the second plate 131 from being too large when the paddling is performed backwards, and when the second paddling members 120 are arranged as a group, the limiting rod 140 is respectively disposed between the first paddling member 110 and the second paddling member 120, and between the second paddling member 120 and the third paddling member 130; when the second paddling members 120 are arranged in a plurality of groups, the stopper bar 140 is arranged between two adjacent groups of paddling members. The limiting member further includes a door pressing bar 150, two ends of the door pressing bar 150 are respectively connected to the left and right ends of the paddling unit 100, and the door pressing bar 150 is provided to prevent the first plate 112 and the second plate 131 from rotating too much when paddling forward.

It should be noted that the doorpost 111, the first plate 112 and the second plate 131 in the first, second and

third paddling members

110, 120 and 130 are the same component, and the limiting rod 140 between the paddling members is the same component, and the arrangement related to the number of the groups of the second paddling members 120 is only a preferred embodiment in the embodiment of the present invention, and is not limited in detail.

As shown in fig. 2, in some embodiments of the present invention, the first paddling member 110 is provided with a hinge 113, the first plate 112 is rotatably connected to the door post 111 by the hinge 113, the second paddling member 120 is provided with at least two hinges 113, the first plate 112 and the second plate 131 are rotatably connected to the door post 111 by the hinges 113, respectively, the third paddling member 130 is provided with a hinge 113, and the second plate 131 is rotatably connected to the door post 111 by the hinges 113.

In the embodiment, the first plate 112 and the second plate 131 are rotatably connected to the doorpost 111 through the hinges 113, and in the embodiment of the present invention, the number of the hinges 113 on the first paddling member 110 is 2, the number of the hinges 113 on the second paddling member 120 is 4, and the number of the hinges 113 on the third paddling member 130 is 2. Hinge 113 can also set up to single spring hinge in this application, and the user is drawn forward, and first board 112 and second board 131 only can be opened forward, and when drawing backward, first board 112 and second board 131 close but can not 180 degrees rotations, consequently can cancel the setting of gag lever post 140. Or, the first plate 112 and the second plate 131 are connected with the door post 111 in a self-limiting structure, and the first plate 112 and the second plate 131 can only rotate by 90 degrees and cannot rotate by 180 degrees when the door post is drawn forwards and backwards, so that the limiting pieces (including the limiting rod 140 and the doorpressing strip 150) can be cancelled.

It should be noted that the number of the hinges 113 is set to better stabilize the first plate 112 and the second plate 131, and also to enable the first plate 112 and the second plate 131 to be connected with the door post 111 in a better rotating manner, so that the present invention achieves a better effect, but this is only a preferred embodiment in the embodiment of the present invention, and the number is not limited specifically; it should be noted that the hinges 113 of the first, second and

third paddling parts

110, 120 and 130 are the same and are commercially available hinges 113, and the specific type is not limited.

In some embodiments of the present invention, the edges of the first plate 112 and the second plate 131 are arranged in a circular arc transition manner, and if the edges of the first plate 112 and the second plate 131 are angular, it is easy to accidentally injure others or oneself because the edges of the first plate 112 and the second plate 131 are arranged in a circular arc transition manner, so that the sharpness is reduced.

As shown in fig. 1, 3, 4 and 5, fig. 3 is a schematic structural view of the handle 210, fig. 4 is a schematic structural view of the accommodating portion 220, and fig. 5 is a schematic structural view of the tank holding cavity 211. In some embodiments of the present invention, the assembling portion 200 includes a handle 210 and a receiving portion 220, the handle 210 is disposed on the receiving portion 220, the receiving portion 220 includes a mounting portion 221 and an attaching portion 222, the attaching portion 222 is disposed below the mounting portion 221, the water cutting portion 100 is disposed on the mounting portion 221, in this embodiment, the receiving portion 220 is divided into the mounting portion 221 and the attaching portion 222, the water cutting portion 100 is disposed on the mounting portion 221, which is a position close to the top of the receiving portion 220, and the handle 210 is disposed below the mounting portion 221. A holding cavity 211 is formed between the receiving portion 220 and the handle 210, so that a user can tightly grip the holding cavity 211 of the handle 210. The attaching portion 222 is formed in an arch shape, and the attaching portion 222 is a portion attached to the arm and is formed according to the shape of the arm.

As shown in fig. 1, in some embodiments of the present invention, the assembling portion 200 is provided with a fixing member 230, the fixing member 230 is disposed at a position near the bottom of the accommodating portion 220, and the handle 210 is provided with an anti-slip structure.

In this embodiment, if the user merely fastens the handle 210 to operate and has a certain possibility to lose his/her hands, the fixing member 230 is provided to allow the present invention to be more stably fixed on the arm of the user, in the embodiment of the present invention, the fixing member 230 is a strap, and both ends of the strap are connected to the left and right ends of the accommodating portion 220, so as to prevent the present invention from falling off, but this is only some embodiments in the embodiment of the present invention, and other fixing members 230 may be provided as long as the effect of allowing the present invention to be fixed on the arm can be achieved; the anti-slip structure in the embodiment of the present invention is made of rubber, so as to increase the friction between the hand of the user and the handle 210.

In the embodiment, the plastic product is taken into consideration of the self weight of the product, so that the operation of a user is more convenient, but the service life of the plastic product is greatly shortened after the plastic product is exposed to the sun for a long time and is soaked in water. From the viewpoint of the mechanism by which aging generally occurs, one of the main causes of aging is the change in the polymer structure. Therefore, the ability to improve aging resistance by studying and modifying the structure of the polymer chain is a major solution to the problem. Such as: although the purpose of rubber vulcanization is to generate crosslinking and reduce unsaturated bonds, a plurality of unsaturated double bonds exist in the vulcanized rubber, and the vulcanized rubber products are inevitably subjected to the action of oxygen, sunlight, ozone in the atmosphere and the like in application, and the chemical and photochemical actions are to generate an aging phenomenon of the vulcanized rubber. Therefore, the anti-aging is mainly achieved by reducing unsaturated double bonds on a high molecular chain of vulcanized rubber, for example, the rubber is modified by using some branched chains, unsaturated bonds are saturated by using a special chemical reaction, so that the anti-aging capability is improved from the aspect of a molecular structure, the aging is delayed, and the service life is prolonged. Secondly, an anti-aging agent is added in the rubber and plastic processing process. Such as: an ultraviolet light stabilizer, a mildew inhibitor, a heat stabilizer and the like are added in the formula of the vulcanized rubber, and an antioxidant for preventing the aging caused by ozone or oxygen is added. Again, methods to increase the physical protection of the coating and protective film may also be used, such as dip coating of the antioxidant solution, painting, metallization, and the like.

The auxiliary swimming equipment provided by the invention can not be worn by the left hand and the right hand, and can be directly taken down by rescuers to rescued people in rescue, such as in the flood fighting process, except being used as a swimming device used at ordinary times. The invention is produced according to the sizes of children and adults.

In summary, embodiments of the present invention provide a replicated swimming rig having at least the following advantages or benefits:

an auxiliary swimming equipment comprises a body, the body is provided with a water cutting part 100 and an assembling part 200 from top to bottom in sequence, the water cutting part 100 includes a first water cutting member 110, a second water cutting member 120 and a third water cutting member 130, the first paddling member 110 includes a gate post 111 and a first plate 112, the first plate 112 is rotatably installed at a right side of the gate post 111, the second paddling member 120 includes a doorpost 111, a first plate 112 and a second plate 131, the first plate 112 and the second plate 131 may be rotatably provided at both left and right sides of the doorpost 111, the third paddling member 130 may include the doorpost 111 and the second plate 131, the second plate 131 is rotatably installed at the left side of the doorpost 111, the second paddling member 120 is installed between the first paddling member 110 and the third paddling member 130, the water cutting unit 100 is provided with a stopper for limiting a rotation range of the first plate 112 and the second plate 131. The user wears the assembly part 200 on the arm, and in the using process, when the arm of the user is stroked forwards, the first plate 112 and the second plate 131 are both opened, an opening is formed between the first plate 112 and the second plate 131, water flows through the opening, and the resistance of water to each paddling piece is reduced; when the arm is stroked backwards, the first plate 112 and the second plate 131 are both closed, the contact area of each paddling member with water is increased, the reaction force provided by the water acts on the paddling member, and the power is provided for the user to stroke forwards by utilizing the reaction force. The limiting member prevents the first plate 112 and the second plate 131 from rotating too much, and the effect of the present invention can be better embodied only by adjusting the rotating range within a certain range. The invention is not distinguished to wear by the left hand and the right hand, can be used by both children and adults, and particularly aims at swimming beginners or people who cannot swim, the invention is easier to get hands than most of the existing auxiliary swimming equipment, such as a swimming ring, the buoyancy of the swimming ring is large, the beginners are difficult to move forwards when wearing the swimming ring, unless the swimming ring is matched with leg water beating motion, correct leg water beating needs hip driving to drive thighs, shanks and whips, knees cannot be bent, feet are slightly stretched straight, the feet swing up and down on the water surface, ankle joints are flexible, but the invention cannot be mastered by most of the beginners, and most of people can only paddle in situ. The user only needs to wear the swimming pool on the arms and move the swimming pool, does not need to completely master the water beating motion of the legs, and the legs only need to beat water according to the functions, so that the effect of forward body stroke to a certain extent can be realized, the basic principle of swimming can be mastered, and the swimming learning speed can be accelerated.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an auxiliary swimming equipment, includes the body, its characterized in that, the body is by last water portion and the assembly portion of drawing that has set gradually under to, the water portion of drawing includes that first water part, second are drawn water part and third and are drawn water part, first water part of drawing includes gatepost and first board, first board rotatable set up in the right side of gatepost, the second is drawn water part and is included gatepost, first board and second board, first board with the second board rotatable set up in the left and right sides of gatepost, the third is drawn water part and is included gatepost and second board, the second board rotatable set up in the left side of gatepost, the second draw water part set up in first water part and third are drawn between the water part, it is provided with and is used for the restriction to draw the water portion first board with the locating part of second board rotation range.

2. The auxiliary swimming equipment according to claim 1, wherein the limiting member comprises a limiting rod, and the limiting rod is respectively arranged between the first paddling member and the second paddling member and between the second paddling member and the third paddling member.

3. The auxiliary swimming equipment according to claim 2, wherein the limiting member further comprises a door pressing strip, and two ends of the door pressing strip are respectively connected to the left end and the right end of the water cutting part.

4. The swimming aid kit according to claim 1, wherein the first paddling member is provided with a hinge by which the first plate is rotatably connected to the doorpost, the second paddling member is provided with at least two hinges by which the first plate and the second plate are rotatably connected to the doorpost, respectively, and the third paddling member is provided with a hinge by which the second plate is rotatably connected to the doorpost.

5. The swimming aid kit according to claim 1, wherein the edges of the first and second panels are arranged in a circular arc transition.

6. The auxiliary swimming equipment of claim 1 wherein the mounting portion comprises a handle bar and a receiving portion, the handle bar being disposed on the receiving portion.

7. The auxiliary swimming equipment as claimed in claim 6, wherein a pool holding cavity is formed between the receiving part and the handle bar.

8. The auxiliary swimming equipment as claimed in claim 7, wherein the accommodating part comprises an installation part and a fitting part, the fitting part is arranged below the installation part, the paddling part is arranged on the installation part, and the fitting part is arranged in an arch shape.

9. The auxiliary swimming equipment as claimed in any one of claims 6-8, wherein the fitting part is provided with a fixing part, and the fixing part is arranged at a position close to the bottom of the accommodating part.

10. An auxiliary swimming rig according to any of the claims 6-8, wherein the handlebar is provided with an anti-slip structure.