A grip handle and application

Abstract

The present invention belongs to the field of 3D printing technology, and specifically relates to a gripping handle and its application. The gripping handle and its application provided by the present invention include an inner core, a first wrapping layer coated on the outer surface of the inner core, and a second wrapping layer coated on the surface of the first wrapping layer; the inner core is a rigid rod-shaped structure, and the first wrapping layer and the second wrapping layer are both flexible, and the flexibility of the first wrapping layer is greater than that of the second wrapping layer. The gripping handle of the present invention can provide good structural support, gripping feel, shock absorption effect, impact and vibration dispersion ability, gripping force, ventilation effect, and take into account the comfort and safety of the gripping handle.

Description

Technical Field

[0001] The invention belongs to the technical field of 3D printing, and in particular relates to a grip handle and an application thereof. Background Art

[0002] In daily life, grip handles can be seen everywhere, such as door and window handles, bag handles, knife handles, etc. Setting grip handles can help people hold objects more easily and firmly, and achieve control and operation of objects. The design of grip handles is mainly to provide a good grip feeling, and to increase the grip force and stability by increasing the fit contact between the grip handle and the palm.

[0003] In some scenarios, in addition to having a good grip, the grip handle also needs to have good shock absorption performance, such as freestyle bicycle handlebars, ski pole handlebars, trekking pole handlebars, golf club handlebars, etc. Take the freestyle bicycle handlebars as an example. Since athletes need to ride BMX Freestyle small-wheel bicycles to perform various difficult skills and performances, including jumping, spinning, sliding, side flips, back flips, etc., when demonstrating these actions, athletes need to lift the bicycle into the air and try their best to rotate and roll. When landing, the handlebars are subjected to huge vertical impact and torsional impact. The severe impact will be directly transmitted to the athlete's palms and wrists, bringing great burden and risk.

[0004] In order to reduce the impact of the grip on the palm and wrist, the common method is as follows Figure 1 As shown, a layer of grip cover made of flexible materials such as silicone, rubber, and foam is provided on the surface of the metal rigid grip. The flexible material used in the grip cover can absorb and reduce the impact and vibration of the grip, thereby reducing the damage to the palm and wrist. However, this method is subject to the following two limitations: the flexibility of the material selected for the flexible grip cover cannot be too large, and the thickness of the flexible grip cover cannot be too large, otherwise it will 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 hand will easily be over-compressed and deformed when holding, resulting in reduced compactness and stability of the grip. Especially in the case of high-speed movement and severe vibration, the hand needs stronger support and stability to ensure that the handle will not slip or lose control.

[0005] It can be seen from this that the shock absorption and support of the grip handle restrain each other and it is difficult to take both into account. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides a grip handle and its application. The purpose of the present invention is to provide a grip handle that can take into account both shock absorption and support, so as to improve the comfort and safety of the grip handle at the same time.

[0007] The gripping handle provided by the present invention comprises an inner core, a first wrapping layer wrapped around the outer surface of the inner core, and a second wrapping layer wrapped around the surface of the first wrapping layer; the inner core is a rigid rod-shaped structure, the first wrapping layer and the second wrapping layer are both flexible, and the flexibility of the first wrapping layer is greater than that of the second wrapping layer.

[0008] Furthermore, in the above-mentioned gripping handle, the first wrapping layer and the second wrapping layer both present a three-dimensional network structure, the three-dimensional network structure having a plurality of connection nodes and a plurality of connection rods, a plurality of connection rods being led out from the connection nodes, and the two ends of the connection rods being led to different connection nodes; by setting the three-dimensional network structure in the first wrapping layer and the second wrapping layer to different structural parameters, the flexibility of the first wrapping layer is made greater than that of the second wrapping layer.

[0009] Furthermore, in the above-mentioned gripping handle, the three-dimensional network structures of the first wrapping layer and the second wrapping layer are both 3D printed structural parts.

[0010] Furthermore, in the above-mentioned gripping handle, the first wrapping layer and the second wrapping layer are integrally formed by 3D printing.

[0011] Furthermore, in the above-mentioned gripping handle, the structural parameters of the three-dimensional network structure include: the average number of connecting rods directly connected to each connecting node, the average rod diameter of each connecting rod, and the average length of each connecting rod; by setting at least one of the structural parameters to be different, the flexibility of the first wrapping layer is greater than that of the second wrapping layer.

[0012] Furthermore, in the above-mentioned gripping handle, the structural parameters of the three-dimensional network structure of the first wrapping layer and the second wrapping layer all satisfy the following conditions: the average number of connecting rods directly connected to each connecting node is in the range of 3.5 to 9.0; the average rod diameter of each connecting rod is in the range of 0.6 mm to 2.2 mm; the average length of each connecting rod is in the range of 3.0 mm to 15.0 mm.

[0013] Furthermore, in the above-mentioned gripping 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 large number of ventilation holes are densely distributed on its surface, and the ventilation holes are connected to the ventilation channels.

[0014] Furthermore, in the above-mentioned gripping handle, at least one of the two ends of the air permeable channel has an open end hole, and at least one of the open end holes faces the length direction of the inner core.

[0015] The above-mentioned grip handle has excellent comfort and safety and can be used in many scenarios, such as freestyle bicycle grips, ski pole grips, trekking pole grips, golf club grips, fishing rod grips, etc., especially in scenarios with high sports intensity such as freestyle cycling, its comfort and safety advantages are more significant.

[0016] Beneficial Effects

[0017] The gripping handle of the present invention can provide good structural support, gripping feeling, shock absorption and energy absorption effect, impact and vibration dispersion ability, gripping force, and ventilation effect, while taking into account the comfort and safety of the gripping handle.

[0018] Specifically, the second wrapping layer has less flexibility and stronger support, and a reinforcement layer is formed on the outside of the first wrapping layer, which can maintain the stability of the overall outer contour of the grip handle and avoid the problem of unstable grip caused by excessive flexibility; by arranging a buffer layer with greater deformability between the rigid inner core and the relatively hard second wrapping layer, the grip handle can significantly increase the shock absorption and energy absorption effect and reduce the impact on the palm and wrist; the first wrapping layer and the second wrapping layer are in a three-dimensional network structure with multiple connection nodes and connecting rods, which can effectively disperse the impact and vibration and reduce the impact on the palm and wrist; the connection nodes and connecting rods in the three-dimensional network structure provide more gripping anchor points, increase the gripping force of the grip handle, make the user's grip more stable, and reduce the risk of slipping and slipping; the three-dimensional network structure of the first and second wrapping layers is manufactured using 3D printing technology, and the structural parameters can be flexibly adjusted as needed to achieve the best shock absorption effect, gripping feel and comfort; the three-dimensional network structure of the second wrapping layer has air permeable channels inside and densely distributed air permeable holes on the surface, which can increase the ventilation effect of the grip handle and keep the hands dry and comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic diagram of the structure of a bicycle handle in the prior art.

[0020] Figure 2 and Figure 3 It is a schematic structural diagram of a freestyle bicycle handlebar of the present invention.

[0021] Figure 4 and Figure 5 Schematic diagram of the basic structural unit that constitutes a three-dimensional network.

[0022] Figure 6 It is a schematic structural diagram of the fishing rod handle of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the golf club handle of the present invention.

[0024] Figure 8 It is a schematic structural diagram of the ski pole handle of the present invention.

[0025] Fig. 9 It is a schematic structural diagram of the trekking pole handle of the present invention. DETAILED DESCRIPTION

[0026] The grip handle of the present invention comprises an inner core 1 , a first wrapping layer 2 wrapped around the outer surface of the inner core 1 , and a second wrapping layer 3 wrapped around the surface of the first wrapping layer 2 .

[0027] The inner core 1 is a rigid rod-shaped structure, which can be a solid rod or a hollow rod, and is usually made of solid materials such as stainless steel, aluminum alloy, steel, carbon fiber, etc. The inner core 1 plays a structural support role, which is responsible for maintaining the position and basic shape of the grip handle and bearing the pressure applied by the hand to a certain extent.

[0028] Both the first wrapping layer 2 and the second wrapping layer 3 are flexible, and the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3. Among them, the second wrapping layer 3 has relatively small flexibility, that is, it has greater hardness and support. A reinforcement layer with stronger support can be formed on the outside of the first wrapping layer 2, which has the effect of enhancing the gripping feeling and maintaining the stability of the overall outer contour of the gripping handle, and avoiding the problem of unstable gripping caused by excessive flexibility. Since the second wrapping layer 3 on the outside has strong support and gripping feeling, the first wrapping layer 2 on the inside can be set to have greater flexibility, and its flexibility can be greater than the flexibility of the conventional gripping jacket. Since a buffer layer with greater deformability is formed between the rigid inner core 1 and the second wrapping layer 3 with a certain rigidity, the shock absorption and energy absorption effect of the gripping handle can be significantly increased. It can be seen that the structural design of this gripping handle can adapt to vibrations and impacts in different scenarios, provide better shock absorption effects, and maintain the stability and controllability of the grip, thereby taking into account both comfort and safety.

[0029] The first wrapping layer 2 and the second wrapping layer 3 are both in a three-dimensional network structure, and the three-dimensional network structure has a plurality of connection nodes and a plurality of connection rods, and a plurality of connection rods are led out from the connection nodes, and the two ends of the connection rods are led to different connection nodes; by setting the three-dimensional network structure in the first wrapping layer 2 and the second wrapping layer 3 to different structural parameters, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3. The first wrapping layer 2 and the second wrapping layer 3 are set as a three-dimensional network structure, and the three-dimensional network structure has a good ability to disperse shock and vibration. The three-dimensional network structure is composed of a plurality of connection nodes and connection rods, and these connection nodes and connection rods can effectively absorb and disperse the shock and vibration of external forces. Therefore, this structural design enables the gripping handle to bear greater shock and vibration, and reduce the impact force on the palm and wrist. In addition, the connection nodes and connection rods in the three-dimensional network structure provide more gripping anchor points, increase friction, and increase the gripping force of the gripping handle. By increasing the contact anchor points, the user's grip is more stable, the risk of sliding and falling out is reduced, and safety is improved.

[0030] The three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are both 3D printed structural parts. The first wrapping layer 2 and the second wrapping layer 3 can be printed separately and then combined together by gluing or the like, or the first wrapping layer 2 and the second wrapping layer 3 can be integrally formed into an integral structural part by 3D printing, wherein integral forming is preferred. The three-dimensional network structure of the first wrapping layer 2 and the second wrapping layer 3 manufactured by 3D printing technology has a high degree of design freedom, and can be precisely customized according to design requirements, and the three-dimensional network structure of the grip handle can be manufactured according to actual requirements. 3D printing technology can be customized according to specific size, shape and material requirements, so the parameters of the three-dimensional network structure can be flexibly adjusted to achieve the best shock absorption effect, grip and comfort. The three-dimensional network structure of the first wrapping layer 2 and the second wrapping layer 3 manufactured by 3D printing technology can achieve the optimal use of materials in the manufacturing process and reduce unnecessary material waste. Compared with traditional manufacturing methods, such as injection molding or extrusion molding, 3D printing can manufacture a more complex and lighter handle structure.

[0031] There are many choices of materials for 3D printing, including but not limited to thermoplastic polyurethane elastomer, polypropylene, polyethylene, polycarbonate, polymethyl methacrylate, polylactic acid, nylon, polyamide, polytetrafluoroethylene, etc., among which thermoplastic polyurethane elastomer is preferred. This type of material has good elasticity, outstanding load-bearing capacity, oil resistance, water resistance, and mildew resistance, so it is suitable for a variety of use environments of the grip handle. Since thermoplastic polyurethane elastomer has good water resistance, the grip handle printed by it can be washed and cleaned. Compared with traditional sponge and foam materials, it has the advantages of not easy to stain the surface and short drying time after washing.

[0032] The structural parameters of the three-dimensional network structure include: the average number of connecting rods directly connected to each connecting node, the average rod diameter of each connecting rod, and the average length of each connecting rod; 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. By adjusting these structural parameters, the flexibility of the first wrapping layer 2 can be greater than that of the second wrapping layer 3. The different flexibility here can be manifested as different degrees of deformation when subjected to external force. Specifically, a flexible material refers to a material that is prone to large deformation when subjected to force, which means that the elastic modulus is relatively small, that is, it has a small ability to resist deformation.

[0033] The influence of the number of connecting rods directly connected to each connection node on the flexibility of the three-dimensional network structure is as follows: Increasing the number of connecting rods can increase the rigidity and support of the entire network structure and reduce flexibility. This is because the more the number of connection points between the connection nodes, the stronger the interaction between the structures and the overall rigidity. Conversely, reducing the number of connecting rods can increase flexibility.

[0034] The influence of the average diameter of each connecting rod on the flexibility of the three-dimensional network structure is as follows: Increasing the rod diameter of the connecting rod can increase its ability to resist deformation, thereby increasing the rigidity and support of the entire structure and reducing flexibility. This is because a larger rod diameter provides greater rigidity and a stronger resistance to external forces. Conversely, reducing the rod diameter of the connecting rod can increase flexibility.

[0035] The effect of the average length of each connecting rod on the flexibility of the three-dimensional network structure is as follows: Increasing the length of the connecting rod means increasing the distance between the connection nodes, thereby reducing the rigidity and support of the entire structure and increasing flexibility. This is because longer connecting rods are more likely to bend and deform, providing more deformation space. Conversely, reducing the length of the connecting rod can reduce flexibility.

[0036] 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 all meet the following conditions: the average number of connecting rods directly connected to each connection node is in the range of 3.5 to 9.0; the average rod diameter of each connecting rod is in the range of 0.6 mm to 2.2 mm; the average length of each connecting rod is in the range of 3.0 mm to 15.0 mm.

[0037] As a further preferred embodiment, the three-dimensional network structure of the second wrapping layer 3 has a plurality of air permeable channels extending along the length direction of the inner core 1, and a large number of air permeable holes are densely distributed on its surface, and the air permeable holes are connected to the air permeable channels. Further preferably, at least one of the two ends of the air permeable channel has an open end hole, and at least one of the open end holes faces the length direction of the inner core 1.

[0038] In the preferred embodiment, the three-dimensional network structure has a breathable channel and an open end hole extending along the length direction of the inner core 1, so that a good ventilation effect can be provided, comfort and dry feeling can be increased, and the risk of slipping and slipping can be reduced. The design of the breathable channel can increase the ventilation effect of the handle and effectively promote air circulation. When people use the grip handle, the hands are prone to generate a large amount of heat and sweat. Without proper ventilation, sweat may form a slippery interface between the palm and the handle, making the grip unstable. By adding breathable channels and air holes, heat and moisture can be released smoothly to keep the hands dry and comfortable. The dry and comfortable feeling is crucial to the user's experience. Keeping the hands dry and comfortable can prevent bacteria from growing, reduce odors, and reduce discomfort in the hands.

[0039] The upper grip handle can be used in many scenarios, for example, as a freestyle bicycle grip, a ski pole grip, a trekking pole grip, a golf club grip, a fishing rod grip, etc. The following is an introduction combined with some actual application scenarios.

[0040] Example 1

[0041] A freestyle bicycle grip, such as Figure 2 and Figure 3 As shown, it includes an inner core 1, a first wrapping layer 2 coated on the outer surface of the inner core 1, and a second wrapping layer 3 coated on the surface of the first wrapping layer 2; the inner core 1 is a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are both flexible, and the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0042] The first wrapping layer 2 and the second wrapping layer 3 both present a three-dimensional network structure. The three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are both 3D printed structural parts, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

[0043] The three-dimensional network structure has multiple connection nodes and multiple connection rods, and several connection rods are led out from the connection nodes, and the two ends of the connection rods are led to different connection nodes; by setting the three-dimensional network structure in the first wrapping layer 2 and the second wrapping layer 3 to different structural parameters, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0044] The three-dimensional network structure of the first wrapping layer 2 has the following characteristics: Figure 4 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the first wrapping layer 2 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.2 mm; and the average length of each connecting rod is 8 mm.

[0045] The three-dimensional network structure of the second wrapping layer 3 has the following characteristics: Figure 5 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.5 mm; and the average length of each connecting rod is 10 mm.

[0046] By setting the structural parameters in this way, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3 .

[0047] As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of air permeable channels extending along the length direction of the inner core 1 distributed inside, and a large number of air permeable holes are densely distributed on its surface. The air permeable holes are connected to the air permeable channels, and the ends of the air permeable channels have open end holes, which face the length direction of the inner core 1.

[0048] Example 2

[0049] A fishing rod handle, such as Figure 6As shown, it includes an inner core 1, a first wrapping layer 2 coated on the outer surface of the inner core 1, and a second wrapping layer 3 coated on the surface of the first wrapping layer 2; the inner core 1 is a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are both flexible, and the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0050] The first wrapping layer 2 and the second wrapping layer 3 both present a three-dimensional network structure. The three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are both 3D printed structural parts, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

[0051] The three-dimensional network structure has multiple connection nodes and multiple connection rods, and several connection rods are led out from the connection nodes, and the two ends of the connection rods are led to different connection nodes; by setting the three-dimensional network structure in the first wrapping layer 2 and the second wrapping layer 3 to different structural parameters, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0052] The three-dimensional network structure of the first wrapping layer 2 has the following characteristics: Figure 4 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the first wrapping layer 2 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.2 mm; and the average length of each connecting rod is 18 mm.

[0053] The three-dimensional network structure of the second wrapping layer 3 has the following characteristics: Figure 5 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.4 mm; and the average length of each connecting rod is 22 mm.

[0054] By setting the structural parameters in this way, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3 .

[0055] As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of air permeable channels extending along the length direction of the inner core 1 distributed inside, and a large number of air permeable holes are densely distributed on its surface. The air permeable holes are connected to the air permeable channels, and the ends of the air permeable channels have open end holes, which face the length direction of the inner core 1.

[0056] Example 3

[0057] A golf club handle, such as Figure 7As shown, it includes an inner core 1, a first wrapping layer 2 coated on the outer surface of the inner core 1, and a second wrapping layer 3 coated on the surface of the first wrapping layer 2; the inner core 1 is a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are both flexible, and the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0058] The first wrapping layer 2 and the second wrapping layer 3 both present a three-dimensional network structure. The three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are both 3D printed structural parts, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

[0059] The three-dimensional network structure has multiple connection nodes and multiple connection rods, and several connection rods are led out from the connection nodes, and the two ends of the connection rods are led to different connection nodes; by setting the three-dimensional network structure in the first wrapping layer 2 and the second wrapping layer 3 to different structural parameters, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0060] The three-dimensional network structure of the first wrapping layer 2 has the following characteristics: Figure 4 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the first wrapping layer 2 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.3 mm; and the average length of each connecting rod is 11 mm.

[0061] The three-dimensional network structure of the second wrapping layer 3 has the following characteristics: Figure 5 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.6 mm; and the average length of each connecting rod is 13 mm.

[0062] By setting the structural parameters in this way, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3 .

[0063] As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of air permeable channels extending along the length direction of the inner core 1 distributed inside, and a large number of air permeable holes are densely distributed on its surface. The air permeable holes are connected to the air permeable channels, and the ends of the air permeable channels have open end holes, which face the length direction of the inner core 1.

[0064] Example 4

[0065] A ski pole handle, such as Figure 8As shown, it includes an inner core 1, a first wrapping layer 2 coated on the outer surface of the inner core 1, and a second wrapping layer 3 coated on the surface of the first wrapping layer 2; the inner core 1 is a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are both flexible, and the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0066] The first wrapping layer 2 and the second wrapping layer 3 both present a three-dimensional network structure. The three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are both 3D printed structural parts, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

[0067] The three-dimensional network structure has multiple connection nodes and multiple connection rods, and several connection rods are led out from the connection nodes, and the two ends of the connection rods are led to different connection nodes; by setting the three-dimensional network structure in the first wrapping layer 2 and the second wrapping layer 3 to different structural parameters, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0068] The three-dimensional network structure of the first wrapping layer 2 has the following characteristics: Figure 4 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the first wrapping layer 2 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.2 mm; and the average length of each connecting rod is 6 mm.

[0069] The three-dimensional network structure of the second wrapping layer 3 has the following characteristics: Figure 5 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.4 mm; and the average length of each connecting rod is 8 mm.

[0070] By setting the structural parameters in this way, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3 .

[0071] As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of air permeable channels extending along the length direction of the inner core 1 distributed inside, and a large number of air permeable holes are densely distributed on its surface. The air permeable holes are connected to the air permeable channels, and the ends of the air permeable channels have open end holes, which face the length direction of the inner core 1.

[0072] Example 5

[0073] A trekking pole grip, such as Fig. 9As shown, it includes an inner core 1, a first wrapping layer 2 coated on the outer surface of the inner core 1, and a second wrapping layer 3 coated on the surface of the first wrapping layer 2; the inner core 1 is a rigid rod-shaped structure, the first wrapping layer 2 and the second wrapping layer 3 are both flexible, and the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0074] The first wrapping layer 2 and the second wrapping layer 3 both present a three-dimensional network structure. The three-dimensional network structures of the first wrapping layer 2 and the second wrapping layer 3 are both 3D printed structural parts, and the first wrapping layer 2 and the second wrapping layer 3 are integrally formed by 3D printing.

[0075] The three-dimensional network structure has multiple connection nodes and multiple connection rods, and several connection rods are led out from the connection nodes, and the two ends of the connection rods are led to different connection nodes; by setting the three-dimensional network structure in the first wrapping layer 2 and the second wrapping layer 3 to different structural parameters, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3.

[0076] The three-dimensional network structure of the first wrapping layer 2 has the following characteristics: Figure 4 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the first wrapping layer 2 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.2 mm; and the average length of each connecting rod is 6 mm.

[0077] The three-dimensional network structure of the second wrapping layer 3 has the following characteristics: Figure 5 The basic structural unit shown is formed by adaptively arranging the basic structural unit in the design space. The structural parameters of the three-dimensional network structure of the second wrapping layer 3 are as follows: the average number of connecting rods directly connected to each connecting node is 8; the average rod diameter of each connecting rod is 1.4 mm; and the average length of each connecting rod is 8 mm.

[0078] By setting the structural parameters in this way, the flexibility of the first wrapping layer 2 is greater than that of the second wrapping layer 3 .

[0079] As can be seen from the figure, the three-dimensional network structure of the second wrapping layer 3 has a plurality of air permeable channels extending along the length direction of the inner core 1 distributed inside, and a large number of air permeable holes are densely distributed on its surface. The air permeable holes are connected to the air permeable channels, and the ends of the air permeable channels have open end holes, which face the length direction of the inner core 1.

[0080] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the present invention so that people familiar with the technology in this field can understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A grip handle, Features: It comprises an inner core (1), a first wrapping layer (2) wrapped around the outer surface of the inner core (1), and a second wrapping layer (3) wrapped around the surface of the first wrapping layer (2); the inner core (1) is a rigid rod-shaped structure, the first wrapping layer (2) and the second wrapping layer (3) are both flexible, and the flexibility of the first wrapping layer (2) is greater than that of the second wrapping layer (3); The first wrapping layer (2) and the second wrapping layer (3) are both in a three-dimensional network structure, wherein the three-dimensional network structure has a plurality of connection nodes and a plurality of connection rods, a plurality of connection rods are led out from the connection nodes, and the two ends of the connection rods are led to different connection nodes; by setting the three-dimensional network structures in the first wrapping layer (2) and the second wrapping layer (3) to have different structural parameters, the flexibility of the first wrapping layer (2) is made greater than that of the second wrapping layer (3); The three-dimensional network structures of the first wrapping layer (2) and the second wrapping layer (3) are both 3D printed structural parts; 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 large number of ventilation holes densely distributed on its surface, the ventilation holes being connected to the ventilation channels.

2. The grip handle according to claim 1, Features: The first wrapping layer (2) and the second wrapping layer (3) are integrally formed by 3D printing.

3. The grip handle according to claim 1, Features: The structural parameters of the three-dimensional network structure include: the average number of connecting rods directly connected to each connecting node, the average rod diameter of each connecting rod, and the average length of each connecting rod; 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).

4. The grip handle according to claim 3, Features: The structural parameters of the three-dimensional network structure of the first wrapping layer (2) and the second wrapping layer (3) all satisfy the following conditions: the average number of connecting rods directly connected to each connecting node is in the range of 3.5 to 9.0; the average rod diameter of each connecting rod is in the range of 0.6 mm to 2.2 mm; and the average length of each connecting rod is in the range of 3.0 mm to 15.0 mm.

5. The grip handle according to claim 1, Features: At least one of the two ends of the air permeable channel has an open end hole, and the open end hole of at least one end faces the length direction of the inner core (1).

6. Application of holding handle, Features: The grip handle is used as at least one of a freestyle bicycle grip, a ski pole grip, a trekking pole grip, a golf club grip, and a fishing rod grip; The gripping handle comprises an inner core (1), a first wrapping layer (2) wrapped around the outer surface of the inner core (1), and a second wrapping layer (3) wrapped around the surface of the first wrapping layer (2); the inner core (1) is a rigid rod-shaped structure, the first wrapping layer (2) and the second wrapping layer (3) are both flexible, and the first wrapping layer (2) is more flexible than the second wrapping layer (3); The first wrapping layer (2) and the second wrapping layer (3) both present a three-dimensional network structure, wherein the three-dimensional network structure has a plurality of connection nodes and a plurality of connection rods, a plurality of connection rods are led out from the connection nodes, and the two ends of the connection rods are led to different connection nodes; by setting the three-dimensional network structures in the first wrapping layer (2) and the second wrapping layer (3) to different structural parameters, the flexibility of the first wrapping layer (2) is made greater than that of the second wrapping layer (3).

7. Application of holding handle, Features: The grip handle is the grip handle according to any one of claims 1 to 5, and the grip handle is used as at least one of a freestyle bicycle grip, a ski pole grip, a trekking pole grip, a golf club grip, and a fishing rod grip.

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