CN220331219U - Holding handle - Google Patents

Abstract

The utility model belongs to the technical field of 3D printing, and particularly relates to a holding handle. The utility model provides a holding handle which comprises an inner core, a first wrapping layer wrapping the outer surface of the inner core and a second wrapping layer wrapping the surface of the first wrapping layer; the inner core is of a rigid rod-shaped structure, the first wrapping layer and the second wrapping layer are flexible, and the flexibility of the first wrapping layer is larger than that of the second wrapping layer. The handle can provide good structural support, gripping handfeel, damping and energy absorbing effects, impact and vibration dispersing capability, gripping force and ventilation effects, and the comfort and safety of the handle are considered.

Description

Holding handle

Technical Field

The utility model belongs to the technical field of 3D printing, and particularly relates to a holding handle.

Background

In life, the holding handle is visible everywhere, such as door and window handles, case handles, cutter grips and the like. The holding handle can help people to hold the object more easily and firmly, and control and operation of the object are realized. The design of the holding handle is mainly used for providing good holding feel, and the holding force and stability are increased by increasing the fit contact between the holding handle and the palm.

In some situations, the grip handle needs to have good shock absorbing properties, such as free bicycle handlebars, ski pole grips, alpenstock grips, golf club grips, etc., in addition to good grip feel. Taking a free bicycle handle bar as an example, because a player needs to ride a BMX Freestyle small-wheel bicycle to perform various high-difficulty skills and performances, including jumping, rotating, sliding, rollover, back turning and other actions, the player needs to empty the bicycle and try to rotate and roll when demonstrating the actions, and the handle bar bears huge vertical impact force and torsional impact force when falling to the ground, and the severe impact can be directly transmitted to the palm and the wrist of the player, so that great burden and risk are brought.

In order to reduce the impact of the grip on the palm and the wrist, a layer of grip sleeve made of flexible materials such as silica gel, rubber, foam and the like is sleeved on the surface of the metal rigid grip as shown in fig. 1, and the flexible materials used for the grip sleeve can absorb and reduce the impact and vibration of the grip, so that the damage to the palm and the wrist is reduced. However, this approach is limited by the fact that the flexibility of the material selected for the flexible grip cover cannot be excessive and the thickness of the flexible grip cover cannot be excessive, which would otherwise affect the stability of the grip. If the material is too soft or too thick, the grip cover will lose sufficient support and stability, and the hands will be prone to excessive compression and deformation during gripping, resulting in reduced compactness and stability of the grip. Particularly in the case of high-speed movements and severe vibrations, greater support and stability of the hand is required to ensure that the handle does not slip or run away.

Therefore, the shock absorption and the supporting property of the holding handle are mutually limited, and the holding handle is difficult to be simultaneously taken into consideration.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides a holding handle. The utility model aims to provide a holding handle which can achieve both shock absorption and support, so as to improve the comfort and safety of the holding handle.

The utility model provides a holding handle which comprises an inner core, a first wrapping layer wrapping the outer surface of the inner core and a second wrapping layer wrapping the surface of the first wrapping layer; the inner core is of a rigid rod-shaped structure, the first wrapping layer and the second wrapping layer are flexible, and the flexibility of the first wrapping layer is larger than that of the second wrapping layer.

Further, in the above-mentioned holding handle, the first wrapping layer and the second wrapping layer are both in a three-dimensional network structure, the three-dimensional network structure is provided with a plurality of connection nodes and a plurality of connection rods, the connection rods are led out from the connection nodes, and two ends of the connection rods are led to different connection nodes; the flexibility of the first wrapping layer is greater than that of the second wrapping layer by setting the three-dimensional network structures in the first wrapping layer and the second wrapping layer to different structural parameters.

Further, in the above-mentioned grip handle, the three-dimensional network structures of the first wrapping layer and the second wrapping layer are 3D printing structural members.

Further, in the above-mentioned grip handle, the first wrapping layer and the second wrapping layer are integrally formed by 3D printing.

Further, in the above-mentioned grip handle, the structural parameters of the three-dimensional network structure include: the number of the connecting rod pieces directly connected with each connecting node is averaged, the rod diameter of each connecting rod piece is averaged, and the length of each connecting rod piece is averaged; by setting at least one of the structural parameters to be different, the first wrapping layer is made more flexible than the second wrapping layer.

Further, in the above-mentioned grip handle, the structural parameters of the three-dimensional network structures of the first wrapping layer and the second wrapping layer all satisfy the following conditions: the number of the connecting rods directly connected with each connecting node is in the range of 3.5-9.0; the average rod diameter of each connecting rod piece is within the range of 0.6 mm-2.2 mm; the average length of each connecting rod piece is in the range of 3.0 mm-15.0 mm.

Further, in the above-mentioned grip handle, the three-dimensional network structure of the second wrapping layer has a plurality of ventilation channels extending along the length direction of the inner core distributed therein, and a plurality of ventilation holes are densely distributed on the surface thereof and are communicated with the ventilation channels.

Further, in the above-mentioned grip handle, at least one end of the ventilation channel has an open end hole, and the open end hole of at least one end faces the length direction of the inner core.

The holding handle has excellent comfort and safety, can be applied to various scenes, for example, can be used as a free bicycle handle, a ski pole handle, a alpenstock handle, a golf club handle, a fishing pole handle and the like, and has more remarkable comfort and safety advantages especially in scenes with larger movement intensity such as a free bicycle and the like.

Advantageous effects

The handle can provide good structural support, gripping handfeel, damping and energy absorbing effects, impact and vibration dispersing capability, gripping force and ventilation effects, and the comfort and safety of the handle are considered.

Specifically, the second wrapping layer has smaller flexibility and stronger supportability, and a reinforcing layer is formed outside the first wrapping layer, so that the stability of the whole outer contour of the holding handle can be maintained, and the problem of unstable holding caused by overlarge flexibility is avoided; the buffer layer with larger deformability is arranged between the rigid inner core and the relatively hard second wrapping layer, so that the damping and energy absorbing effects can be remarkably improved by holding the handle, and the impact force on the palm and the wrist is reduced; the first wrapping layer and the second wrapping layer are of a three-dimensional network structure and are provided with a plurality of connecting nodes and connecting rods, so that impact and vibration can be effectively dispersed, and impact force on a palm and a wrist is reduced; the connecting nodes and the connecting rods in the three-dimensional network structure provide more grip anchor points, so that the grip strength of the grip handle is increased, the grip of a user is more stable, and the risks of sliding and hand-off are reduced; the three-dimensional network structures of the first wrapping layer and the second wrapping layer are manufactured by using a 3D printing technology, so that the structural parameters can be flexibly adjusted according to the needs, and the optimal damping effect, grasping feeling and comfort level are realized; the ventilation channels and the ventilation holes densely distributed on the surface are formed in the three-dimensional network structure of the second wrapping layer, so that the ventilation effect of the holding handle can be improved, and the dryness and comfort of hands can be kept.

Drawings

FIG. 1 is a schematic view of a prior art bicycle grip.

Fig. 2 and 3 are schematic structural views of the free-form bicycle grip of the present utility model.

Fig. 4 and 5 are schematic views of basic structural units constituting a three-dimensional network.

Fig. 6 is a schematic view of the structure of the handle of the fishing rod of the present utility model.

FIG. 7 is a schematic view of the structure of the golf club handle of the present utility model.

FIG. 8 is a schematic view of the structure of the ski pole grip of the present utility model.

FIG. 9 is a schematic view of the alpenstock grip of the present utility model.

Detailed Description

The holding handle comprises an inner core 1, a first wrapping layer 2 wrapping the outer surface of the inner core 1 and a second wrapping layer 3 wrapping the surface of the first wrapping layer 2.

The inner core 1 is a rigid rod-shaped structure, and can be a solid rod or a hollow rod, and is generally made of a firm material such as stainless steel, aluminum alloy, steel, carbon fiber and the like. The core 1 serves as a structural support which is responsible for maintaining the position and basic shape of the gripping handle and is to some extent subjected to pressure exerted from the hand.

The first wrapping layer 2 and the second wrapping layer 3 are flexible, and the first wrapping layer 2 is more flexible than the second wrapping layer 3. The second wrapping layer 3 has relatively small flexibility, i.e. has larger hardness and support, and a reinforcing layer with stronger support can be formed on the outer side of the first wrapping layer 2, so that the effects of enhancing the grip feel and maintaining the stability of the overall outer contour of the grip handle are achieved, and the problem of unstable grip caused by overlarge flexibility is avoided. Since the outer second wrapping layer 3 has a strong supporting property and a gripping feel, the inner first wrapping layer 2 may be provided to have a greater flexibility, and the flexibility thereof may be greater than that of the conventional grip wrap. The damping and energy-absorbing effect of the grip handle can be significantly increased by forming a buffer layer with a large deformability between the rigid core 1 and the second wrapping layer 3, which is relatively rigid. Therefore, the structural design of the holding handle can adapt to vibration and impact under different scenes, provides a good damping effect, and simultaneously keeps the stability and the control of the holding, so that the comfort and the safety are both considered.

The first wrapping layer 2 and the second wrapping layer 3 are of a three-dimensional network structure, a plurality of connecting nodes and a plurality of connecting rods are arranged in the three-dimensional network structure, a plurality of connecting rods are led out from the connecting nodes, and two ends of the connecting rods are led to different connecting nodes; by setting the three-dimensional network structure in the first and second wrappers 2, 3 to different structural parameters, the first wrapper 2 is more flexible than the second wrapper 3. The first wrapping layer 2 and the second wrapping layer 3 are arranged into a three-dimensional network structure, and the three-dimensional network structure has good impact and vibration dispersing capability. The three-dimensional network structure is composed of a plurality of connecting nodes and connecting rods, and the connecting nodes and the connecting rods can effectively absorb and disperse the impact and vibration of external force. Therefore, the structural design enables the holding handle to bear larger impact and vibration, and reduces impact force on the palm and the wrist. In addition, the connecting nodes and the connecting rods in the three-dimensional network structure provide more grasping anchor points, so that friction is increased, and grasping force of the grasping handles is increased. Through increasing the contact anchor point, user's grasp is more stable, reduces the risk of slip and unhooking, has improved the security.

The three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are 3D printing structural members. The first wrapping layer 2 and the second wrapping layer 3 may be separately printed and then combined together by gluing or the like, or the first wrapping layer 2 and the second wrapping layer 3 may be integrally formed into an integral structural member by 3D printing, wherein the integral structural member is preferred. The three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are manufactured by adopting a 3D printing technology, so that the three-dimensional network structure has high design freedom, can be accurately customized according to design requirements, and is manufactured according to actual requirements. The 3D printing technique can be customized according to specific size, shape and material requirements, so that parameters of the three-dimensional network structure can be flexibly adjusted to achieve optimal shock absorption effect, grasping feeling and comfort. The three-dimensional network structure of the first wrapping layer 2 and the second wrapping layer 3 is manufactured by adopting a 3D printing technology, so that the optimal use of materials can be realized in the manufacturing process, and unnecessary material waste is reduced. 3D printing can produce a more complex and lighter handle structure than traditional manufacturing methods such as injection molding or extrusion.

The 3D printed material may be selected from a variety of materials including, but not limited to, thermoplastic polyurethane elastomers, polypropylene, polyethylene, polycarbonate, polymethyl methacrylate, polylactic acid, nylon, polyamide, polytetrafluoroethylene, etc., with thermoplastic polyurethane elastomers being preferred. The material has good elasticity, outstanding bearing capacity, oil resistance, water resistance and mould resistance, so the material is suitable for various use environments of the holding handle. Because the thermoplastic polyurethane elastomer has good water resistance, the holding handle manufactured by printing can be cleaned by water, and compared with the traditional sponge and foam materials, the thermoplastic polyurethane elastomer has the advantages of difficult surface contamination, short drying time after cleaning and the like.

The structural parameters of the three-dimensional network structure include: the number of the connecting rod pieces directly connected with each connecting node is averaged, the rod diameter of each connecting rod piece is averaged, and the length of each connecting rod piece is averaged; by setting at least one of the structural parameters to be different, the first wrapping layer 2 is made more flexible than the second wrapping layer 3. By adjusting these structural parameters, the first wrapping layer 2 can be made more flexible than the second wrapping layer 3. The different flexibilities may be represented here by different degrees of deformation upon application of an external force, in particular, a flexible material refers to a material that is susceptible to large deformation upon application of a force, which means that the modulus of elasticity is relatively small, i.e. has a small resistance to deformation.

The effect on the flexibility of the three-dimensional network structure of the number of connection rods directly connected to each connection node is averaged as follows: increasing the number of connecting rods can increase the rigidity and support of the overall network structure, reducing flexibility. This is because the greater the number of connection points between the connection nodes, the stronger the interaction between the structures, and the overall rigidity is enhanced. Conversely, decreasing the number of connecting rods may increase flexibility.

The effect of the rod diameter of each connecting rod on the flexibility of the three-dimensional network structure is averaged as follows: increasing the diameter of the connecting rod increases the resistance to deformation, thereby increasing the rigidity and support of the whole structure and reducing the flexibility. This is because a larger stem diameter provides greater rigidity and provides greater resistance to external forces. Conversely, decreasing the rod diameter of the connecting rod may increase flexibility.

The effect of averaging the length of each connecting rod on the flexibility of the three-dimensional network structure is as follows: increasing the length of the connecting rods means that the distance between the connecting nodes increases, thereby decreasing the rigidity and support of the overall structure and increasing the flexibility. This is because longer connecting rods are more prone to bending deformation, providing more deformation space. Conversely, reducing the length of the connecting rod member may reduce flexibility.

As a preferred embodiment, the structural parameters of the three-dimensional network structure of the first wrapping layer 2 and the second wrapping layer 3 each satisfy the following conditions: the number of the connecting rods directly connected with each connecting node is in the range of 3.5-9.0; the average rod diameter of each connecting rod piece is within the range of 0.6 mm-2.2 mm; the average length of each connecting rod piece is in the range of 3.0 mm-15.0 mm.

As a further preferred embodiment, the three-dimensional network structure of the second wrapping layer 3 has a plurality of ventilation channels extending along the length direction of the inner core 1 distributed therein, and a plurality of ventilation holes densely distributed on the surface thereof, the ventilation holes being communicated with the ventilation channels. It is further preferred that at least one of the ends of the ventilation channel has an open end hole, and that the open end hole of at least one end is oriented in the length direction of the core 1.

In this preferred embodiment, the three-dimensional network structure has ventilation channels and open end holes extending along the length of the core 1, which can provide good ventilation, increased comfort and dryness, and reduced risk of slipping and slipping hands. The ventilation effect of the handle can be increased by the design of the ventilation channel, and ventilation is effectively promoted. When a person uses the grip handle, a large amount of heat and sweat is easily generated by the hand. Without proper ventilation, perspiration may form a slippery interface between the palm and the handle, making the grip unstable. Through adding ventilation channel and bleeder vent, can release heat and moisture smoothly, keep dry and comfortable of hand. The dry and comfortable feeling is of importance to the user's experience, keeps the hands dry and comfortable, can prevent bacterial growth, reduce off-flavor, and reduce hand discomfort.

The upper grip may be used in a variety of applications, such as a free bike grip, ski pole grip, alpenstock grip, golf club grip, fishing pole grip, etc., as described below in connection with some practical applications.

Example 1

The free bicycle handle, as shown in figures 2 and 3, comprises an inner core 1, a first wrapping layer 2 wrapping the outer surface of the inner core 1 and a second wrapping layer 3 wrapping the surface of the first wrapping layer 2; the inner core 1 is of a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are flexible, and the flexibility of the first wrapping layer 2 is larger than that of the second wrapping layer 3.

The first wrapping layer 2 and the second wrapping layer 3 are three-dimensional network structures, the three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are 3D printing structural members, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

The three-dimensional network structure is provided with a plurality of connecting nodes and a plurality of connecting rod pieces, a plurality of connecting rod pieces are led out from the connecting nodes, and two ends of the connecting rod pieces are led to different connecting nodes; by setting the three-dimensional network structure in the first and second wrappers 2, 3 to different structural parameters, the first wrapper 2 is more flexible than the second wrapper 3.

The three-dimensional network structure of the first coating layer 2 has basic structural units as shown in fig. 4, and is formed by adaptively arranging the basic structural units in a design space. The three-dimensional network structure of the first wrapping layer 2 has the following structural parameters: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.2mm; the length of each connecting rod piece is 8mm on average.

The three-dimensional network structure of the second coating layer 3 has basic structural units as shown in fig. 5, by which the basic structural units are formed in an adaptive arrangement in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.5mm; the length of each connecting rod piece is 10mm on average.

By means of such a configuration, the first coating layer 2 is more flexible than the second coating layer 3.

As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of ventilation channels extending along the length direction of the inner core 1 distributed therein, a plurality of ventilation holes densely distributed on the surface thereof, the ventilation holes being communicated with the ventilation channels, and the ends of the ventilation channels having open end holes facing the length direction of the inner core 1.

Example 2

A handle of a fishing rod, as shown in figure 6, comprises an inner core 1, a first wrapping layer 2 wrapping the outer surface of the inner core 1 and a second wrapping layer 3 wrapping the surface of the first wrapping layer 2; the inner core 1 is of a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are flexible, and the flexibility of the first wrapping layer 2 is larger than that of the second wrapping layer 3.

The first wrapping layer 2 and the second wrapping layer 3 are three-dimensional network structures, the three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are 3D printing structural members, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

The three-dimensional network structure is provided with a plurality of connecting nodes and a plurality of connecting rod pieces, a plurality of connecting rod pieces are led out from the connecting nodes, and two ends of the connecting rod pieces are led to different connecting nodes; by setting the three-dimensional network structure in the first and second wrappers 2, 3 to different structural parameters, the first wrapper 2 is more flexible than the second wrapper 3.

The three-dimensional network structure of the first coating layer 2 has basic structural units as shown in fig. 4, and is formed by adaptively arranging the basic structural units in a design space. The three-dimensional network structure of the first wrapping layer 2 has the following structural parameters: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.2mm; the length of each connecting rod piece is 18mm on average.

The three-dimensional network structure of the second coating layer 3 has basic structural units as shown in fig. 5, by which the basic structural units are formed in an adaptive arrangement in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.4mm; the length of each connecting rod piece is 22mm on average.

By means of such a configuration, the first coating layer 2 is more flexible than the second coating layer 3.

As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of ventilation channels extending along the length direction of the inner core 1 distributed therein, a plurality of ventilation holes densely distributed on the surface thereof, the ventilation holes being communicated with the ventilation channels, and the ends of the ventilation channels having open end holes facing the length direction of the inner core 1.

Example 3

A golf club handle, as shown in fig. 7, comprises an inner core 1, a first wrapping layer 2 wrapping the outer surface of the inner core 1, and a second wrapping layer 3 wrapping the surface of the first wrapping layer 2; the inner core 1 is of a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are flexible, and the flexibility of the first wrapping layer 2 is larger than that of the second wrapping layer 3.

The first wrapping layer 2 and the second wrapping layer 3 are three-dimensional network structures, the three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are 3D printing structural members, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

The three-dimensional network structure is provided with a plurality of connecting nodes and a plurality of connecting rod pieces, a plurality of connecting rod pieces are led out from the connecting nodes, and two ends of the connecting rod pieces are led to different connecting nodes; by setting the three-dimensional network structure in the first and second wrappers 2, 3 to different structural parameters, the first wrapper 2 is more flexible than the second wrapper 3.

The three-dimensional network structure of the first coating layer 2 has basic structural units as shown in fig. 4, and is formed by adaptively arranging the basic structural units in a design space. The three-dimensional network structure of the first wrapping layer 2 has the following structural parameters: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.3mm; the average length of each connecting rod piece is 11mm.

The three-dimensional network structure of the second coating layer 3 has basic structural units as shown in fig. 5, by which the basic structural units are formed in an adaptive arrangement in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.6mm; the length of each connecting rod piece is 13mm on average.

By means of such a configuration, the first coating layer 2 is more flexible than the second coating layer 3.

As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of ventilation channels extending along the length direction of the inner core 1 distributed therein, a plurality of ventilation holes densely distributed on the surface thereof, the ventilation holes being communicated with the ventilation channels, and the ends of the ventilation channels having open end holes facing the length direction of the inner core 1.

Example 4

A ski pole handle, as shown in figure 8, comprises an inner core 1, a first wrapping layer 2 wrapping the outer surface of the inner core 1, and a second wrapping layer 3 wrapping the surface of the first wrapping layer 2; the inner core 1 is of a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are flexible, and the flexibility of the first wrapping layer 2 is larger than that of the second wrapping layer 3.

The first wrapping layer 2 and the second wrapping layer 3 are three-dimensional network structures, the three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are 3D printing structural members, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

The three-dimensional network structure is provided with a plurality of connecting nodes and a plurality of connecting rod pieces, a plurality of connecting rod pieces are led out from the connecting nodes, and two ends of the connecting rod pieces are led to different connecting nodes; by setting the three-dimensional network structure in the first and second wrappers 2, 3 to different structural parameters, the first wrapper 2 is more flexible than the second wrapper 3.

The three-dimensional network structure of the first coating layer 2 has basic structural units as shown in fig. 4, and is formed by adaptively arranging the basic structural units in a design space. The three-dimensional network structure of the first wrapping layer 2 has the following structural parameters: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.2mm; the length of each connecting rod piece is 6mm on average.

The three-dimensional network structure of the second coating layer 3 has basic structural units as shown in fig. 5, by which the basic structural units are formed in an adaptive arrangement in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.4mm; the length of each connecting rod piece is 8mm on average.

By means of such a configuration, the first coating layer 2 is more flexible than the second coating layer 3.

As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of ventilation channels extending along the length direction of the inner core 1 distributed therein, a plurality of ventilation holes densely distributed on the surface thereof, the ventilation holes being communicated with the ventilation channels, and the ends of the ventilation channels having open end holes facing the length direction of the inner core 1.

Example 5

As shown in figure 9, the alpenstock grip comprises an inner core 1, a first wrapping layer 2 wrapping the outer surface of the inner core 1 and a second wrapping layer 3 wrapping the surface of the first wrapping layer 2; the inner core 1 is of a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are flexible, and the flexibility of the first wrapping layer 2 is larger than that of the second wrapping layer 3.

The first wrapping layer 2 and the second wrapping layer 3 are three-dimensional network structures, the three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are 3D printing structural members, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

The three-dimensional network structure is provided with a plurality of connecting nodes and a plurality of connecting rod pieces, a plurality of connecting rod pieces are led out from the connecting nodes, and two ends of the connecting rod pieces are led to different connecting nodes; by setting the three-dimensional network structure in the first and second wrappers 2, 3 to different structural parameters, the first wrapper 2 is more flexible than the second wrapper 3.

The three-dimensional network structure of the first coating layer 2 has basic structural units as shown in fig. 4, and is formed by adaptively arranging the basic structural units in a design space. The three-dimensional network structure of the first wrapping layer 2 has the following structural parameters: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.2mm; the length of each connecting rod piece is 6mm on average.

The three-dimensional network structure of the second coating layer 3 has basic structural units as shown in fig. 5, by which the basic structural units are formed in an adaptive arrangement in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the number of the connecting rods directly connected with each connecting node is 8; the average rod diameter of each connecting rod piece is 1.4mm; the length of each connecting rod piece is 8mm on average.

By means of such a configuration, the first coating layer 2 is more flexible than the second coating layer 3.

As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of ventilation channels extending along the length direction of the inner core 1 distributed therein, a plurality of ventilation holes densely distributed on the surface thereof, the ventilation holes being communicated with the ventilation channels, and the ends of the ventilation channels having open end holes facing the length direction of the inner core 1.

The above embodiments are illustrative for the purpose of illustrating the technical concept and features of the present utility model so that those skilled in the art can understand the content of the present utility model and implement it accordingly, and thus do not limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (8)

1. A grip handle, characterized by: comprises an inner core (1), a first wrapping layer (2) wrapping the outer surface of the inner core (1) and a second wrapping layer (3) wrapping the surface of the first wrapping layer (2); the inner core (1) is of a rigid rod-shaped structure, the first wrapping layer (2) and the second wrapping layer (3) are flexible, and the flexibility of the first wrapping layer (2) is larger than that of the second wrapping layer (3).

2. The grip of claim 1, wherein: the first wrapping layer (2) and the second wrapping layer (3) are of a three-dimensional network structure, a plurality of connecting nodes and a plurality of connecting rods are arranged in the three-dimensional network structure, a plurality of connecting rods are led out from the connecting nodes, and two ends of the connecting rods are led to different connecting nodes; the flexibility of the first wrapping layer (2) is greater than that of the second wrapping layer (3) by setting the three-dimensional network structures in the first wrapping layer (2) and the second wrapping layer (3) to different structural parameters.

3. The grip of claim 2, wherein: the three-dimensional network structures of the first wrapping layer (2) and the second wrapping layer (3) are 3D printing structural members.

4. A grip handle according to claim 3, wherein: the first wrapping layer (2) and the second wrapping layer (3) are integrally formed by 3D printing.

5. The grip of claim 2, wherein: the structural parameters of the three-dimensional network structure include: the number of the connecting rod pieces directly connected with each connecting node is averaged, the rod diameter of each connecting rod piece is averaged, and the length of each connecting rod piece is averaged; by setting at least one of the structural parameters to be different, the flexibility of the first wrapping layer (2) is greater than that of the second wrapping layer (3).

6. The grip of claim 5, wherein: the structural parameters of the three-dimensional network structures of the first wrapping layer (2) and the second wrapping layer (3) meet the following conditions: the number of the connecting rods directly connected with each connecting node is in the range of 3.5-9.0; the average rod diameter of each connecting rod piece is within the range of 0.6 mm-2.2 mm; the average length of each connecting rod piece is in the range of 3.0 mm-15.0 mm.

7. The grip of claim 2, wherein: the three-dimensional network structure of the second wrapping layer (3) is characterized in that a plurality of ventilation channels extending along the length direction of the inner core (1) are distributed in the second wrapping layer, a large number of ventilation holes are densely distributed on the surface of the second wrapping layer, and the ventilation holes are communicated with the ventilation channels.

8. The grip of claim 7, wherein: at least one end of the ventilation channel is provided with an open end hole, and the open end hole of at least one end faces the length direction of the inner core (1).