Snowmobile composite ski

Abstract

The utility model discloses a compound sled of snowmobile, including support axle end, with the fixed metal frame of support axle end, the snow sled board of metal frame lower extreme, the front arc shape end of snow sled board front end is set up and is raised, its rear end is set up and is raised rear arc shape end, the support frame for supporting its of snow sled board front arc shape end upper end has, and snow sled board upper end still has the reinforcing rib of split shape, the metal part for direction control is detachably installed to snow sled board lower extreme. Compared with prior art, the utility model has the advantages that the front arc shape end and rear arc shape end of snow sled board adopt the structure of rising, the range of front arc shape end is bigger, and the snow sled board is convenient for " climbs " the snow heap or the obstacle, and direct insertion in the snow is avoided, rear arc shape end is smaller, and the stability of snowmobile is improved when going straight or being stationary, the support frame of front arc shape end upper end is made of metal material, can keep the shape and rigidity of front arc shape end, prevents excessive deformation when hitting the obstacle.

Description

Technical Field

[0001] This utility model relates to the field of ski structure technology, and in particular to a composite ski for snowmobiles. Background Technology

[0002] The skid at the lower end of the snowmobile's front suspension is equivalent to the snowmobile's front wheel. Its main functions are to rotate to change direction and provide buoyancy. When the rider turns the handlebars, the front suspension directly drives the skid to rotate synchronously, generating lateral force, which guides the entire snowmobile to change direction. Snowmobiles need to travel in deep snow, and if the pressure is too high, the vehicle will get stuck. Therefore, the skid has a wide bottom surface, distributing the weight of the front of the vehicle over a larger area. The increased area effectively reduces the pressure of the snowmobile on the snow surface, allowing it to float on the soft snow instead of sinking.

[0003] However, the snow surface is far from flat; it may contain undulations, hard snow chunks, etc. If the sled is rigid, only part of the sled will contact the snow surface, resulting in insufficient grip, especially when turning, causing fuzzy steering or even sudden skidding. Therefore, the sled needs to be designed to swing up and down, automatically adjusting its angle like a seesaw, to ensure that its entire or most of its bottom surface is in close contact with the uneven snow surface. Utility Model Content

[0004] In view of the problems mentioned above, the technical problem to be solved by this utility model is to provide a composite ski for snowmobiles.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a snowmobile composite ski, including a support shaft end, a metal frame fixed to the support shaft end, and a ski plate located at the lower end of the metal frame. The front end of the ski plate is a front arc-shaped end with an upturned shape, and its rear end is a rear arc-shaped end with an upturned shape. The upper end of the front arc-shaped end of the ski plate has a support frame for supporting it, and the upper end of the ski plate also has split reinforcing ribs. The lower end of the sled has a detachable metal component for directional control.

[0006] A further preferred embodiment of this utility model is: a connecting part is installed between the metal frame and the sled, and the connecting part is used to automatically adjust the angle between the metal frame and the sled.

[0007] A further preferred embodiment of this utility model is: the connecting part includes a connecting block one and a connecting block two; Connecting block one is clamped inside the metal frame and is fixed. The integrated reinforcing rib on the sled plate forms an installation groove. Connecting block two is inserted into the installation groove. Connecting block one and connecting block two are in contact. A connecting shaft rotates through the inside of connecting block one. The connecting shaft passes through the inner wall of the installation groove formed by the reinforcing rib and its end is fastened by bolts.

[0008] A further preferred embodiment of this utility model is: an arc-shaped portion is formed at the lower end of the connecting block, and a first inclined side and a second inclined side are respectively located on both sides of the arc-shaped portion; The upper end of the connecting block 2 has an arc-shaped groove that matches the arc-shaped part, and a limiting surface 1 and a limiting surface 2 located on both sides of the arc-shaped groove. The limiting surface 1 and the inclined side 1 form an angle, and the limiting surface 2 and the inclined side 2 form an angle. When the tilt angle of the sled is different, the angle between the limiting surface 1 and the inclined side 1 and the angle between the limiting surface 2 and the inclined side 2 change accordingly.

[0009] A further preferred embodiment of this utility model is: the lower end of the second connecting block is concave-convex, and the inner wall of the lower end of the mounting groove cooperates with the lower end of the second connecting block.

[0010] A further preferred embodiment of this utility model is: the support frame is made of metal, one end of which is fixed to the front arc-shaped end of the sled, and the other end is fixed to the upper reinforcing rib of the sled, for fixing the shape of the front arc-shaped end.

[0011] A further preferred embodiment of this utility model is: the lower end of the sled has two sets of protruding layers one and one set of protruding layers two extending along the lower end of the sled, the protruding layers two being located in the middle of the lower end of the sled, and the two sets of protruding layers one being located on both sides thereon. The metal components include a metal strip one installed at the lower end of the protruding layer and a metal strip two installed at the lower end of the protruding layer two.

[0012] A further preferred embodiment of this utility model is: both the upper ends of metal strip one and metal strip two are fixed with threaded shafts that extend upward through the sled board, and the threaded shafts are fastened to the sled board by bolts.

[0013] A further preferred embodiment of this utility model is: both metal strip one and metal strip two are die-cast sheet metal, and both ends of metal strip one and metal strip two are smoothly transitioned to protruding layer one and protruding layer two in an arc shape.

[0014] A further preferred embodiment of this utility model is that both ends of the protruding layer one and the protruding layer two have a smooth arc transition with the sled board.

[0015] Compared with the prior art, the advantages of this utility model are: 1. The front and rear curved ends of the snowmobile are designed with a raised structure. The front curved end is larger, making it easier for the snowmobile to "climb" up snowdrifts or obstacles and avoid directly inserting into the snow. The rear curved end is smaller, increasing the horizontal contact area and improving the stability of the snowmobile when moving straight or stationary. The support frame at the top of the front curved end is made of metal, which can maintain the shape and rigidity of the front curved end and prevent excessive deformation when hitting obstacles.

[0016] 2. Through the design of the connecting part, the skis can automatically adjust the tilt angle to adapt to the undulations of the snow, hard snow blocks and other irregular surfaces, which increases the effective contact area between the skis and the snow, allowing the metal parts to sink into the snow over a larger area, thereby generating greater resistance when turning and reducing the problems of sideslip or steering ambiguity caused by insufficient grip.

[0017] 3. Metal strip one and metal strip two can be detached and installed via threaded shafts. If they are damaged due to bottoming out or wear, they can be quickly replaced, reducing overall maintenance costs and extending the service life of the skis. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connecting part of this utility model. Figure 3 This is an enlarged structural diagram of the connecting part of this utility model; Figure 4 This is a schematic diagram of the overall half-section structure of this utility model; Figure 5 This is an exploded view of the metal components and sled boards of this utility model; Figure 6 This is a schematic diagram of the end structure of one end of the sled of this utility model.

[0020] In the diagram: 1. Support shaft end; 2. Metal frame; 3. Connecting part; 31. Connecting block one; 311. Arc-shaped part; 312. Hydrate one; 313. Hydrate two; 314. Connecting shaft; 32. Connecting block two; 321. Arc-shaped groove; 322. Limiting surface one; 323. Limiting surface two; 33. Mounting groove; 4. Sled plate; 41. Front arc-shaped end; 42. Rear arc-shaped end; 43. Protruding layer one; 44. Protruding layer two; 45. Support frame; 5. Reinforcing rib; 6. Metal parts; 61. Metal strip one; 62. Metal strip two; 63. Threaded shaft. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0023] This embodiment mainly describes a snowmobile composite ski. Please refer to [link / reference needed]. Figures 1-6 Specifically, the snow surface is not flat and may contain undulations, hard snow blocks, etc. If the sled is rigid, only part of the sled will contact the snow surface, resulting in insufficient grip, especially when turning, causing unclear steering or even sudden sideslip. Based on this, a snowmobile composite sled is proposed, including a support shaft end 1, a metal frame 2 fixed to the support shaft end 1, and a sled plate 4 located at the lower end of the metal frame 2. The front end of the sled plate 4 is a front arc-shaped end 41 with an upturned shape, and its rear end is a rear arc-shaped end 42 with an upturned shape. The upper end of the front arc-shaped end 41 of the sled plate 4 has a support frame 45 for supporting it, and the upper end of the sled plate 4 also has split reinforcing ribs 5. The lower end of the sled 4 is detachably fitted with a metal component 6 for directional control.

[0024] Specifically, the skis 4 are a common structure used in snowmobiles, generally made of plastic. The upper end of the skis 4 has reinforcing ribs 5 to maintain its shape. The skis 4 have a front arc end 41 and a rear arc end 42, which makes it easier for the skis 4 to "climb" snowdrifts or obstacles. The front arc end 41 has a larger arc range than the rear arc end 42, while the rear arc end 42 is relatively smaller. With the same area of ​​skis 4, the area of ​​the horizontal part can be increased, so as to keep the snowmobile stably supported on the snow surface as much as possible.

[0025] Metal component 6 is a replaceable part used to stabilize the skis 4 and generate resistance when turning, thereby changing the direction of the snowmobile. Metal component 6 is prone to bottoming out when stuck in the snow and is easily damaged, so it is designed to be detachable.

[0026] like Figures 2-4 A connecting part 3 is installed between the metal frame 2 and the sled 4. The connecting part 3 is used to automatically adjust the angle between the metal frame 2 and the sled 4.

[0027] The connecting part 3 includes a first connecting block 31 and a second connecting block 32; Connecting block 1 31 is clamped inside the metal frame 2 and is in a fixed state. The integral reinforcing rib 5 on the sled 4 forms a mounting groove 33. Connecting block 2 32 is inserted into the mounting groove 33. Connecting block 1 31 is in contact with connecting block 2 32. A connecting shaft 314 rotates through the connecting block 1 31. The connecting shaft 314 passes through the inner wall of the mounting groove 33 formed by the reinforcing rib 5 and its end is fastened by bolts.

[0028] Specifically, when connecting block 1 31 is in a fixed state, connecting block 2 32 is limited in the mounting groove 33 by connecting block 1 31 and connecting shaft 314, so that connecting block 2 32 is limited without any connection to the outside world, making connecting block 2 32 easy to replace.

[0029] like Figures 2-4 The lower end of the connecting block 31 has an arc-shaped portion 311 and a first inclined side 312 and a second inclined side 313 located on both sides of the arc-shaped portion 311 respectively; The upper end of the connecting block 32 has an arc groove 321 that mates with the arc part 311, and a limiting surface 322 and a limiting surface 323 located on both sides of the arc groove 321. The limiting surface 322 forms an angle with the inclined side 312, and the limiting surface 323 forms an angle with the inclined side 313. When the tilt angle of the sled 4 is different, the angle between the limiting surface 322 and the inclined side 312 and the angle between the limiting surface 323 and the inclined side 313 change accordingly.

[0030] Specifically, an angle is formed between the first limiting surface 322 and the first hypotenuse 312, and an angle is formed between the second limiting surface 323 and the second hypotenuse 313. The two angles are the angles at which the second connecting block 32 can tilt, making it easy for the lower ski board 4 to change its tilt angle and fit relatively closely with the undulating snow. It should be noted that the second connecting block 32 can be directly removed by disassembling the connecting shaft 314, thus facilitating replacement. The first limiting surface 322 and the second limiting surface 323 can be set to different tilt degrees, changing the range of tilt that the ski board 4 can take, thereby adapting to different environments.

[0031] like Figure 4 As shown, the lower end of the connecting block 2 32 is concave-convex, and the inner wall of the lower end of the mounting groove 33 matches the lower end of the connecting block 2 32. Specifically, the connecting block 2 32 embedded in the mounting groove 33 will not slide and will be fixed.

[0032] like Figure 6 As shown, the support frame 45 is made of metal. One end of it is fixed to the front arc end 41 of the sled 4, and the other end is fixed to the upper reinforcing rib 5 of the sled 4, which is used to fix the shape of the front arc end 41.

[0033] Specifically, the front arc end 41 of the sled 4 has a large arc range, and since it is made of plastic, it needs to be limited by the support frame 45 in order to maintain its rigidity. The support frame 45 is used to keep the front arc end 41 in a raised state, and can restore it even if it deforms.

[0034] like Figure 5As shown, the lower end of the sled 4 has two sets of protruding layers 43 and one set of protruding layers 44 extending along the lower end of the sled 4. The protruding layer 44 is located in the middle of the lower end of the sled 4, and the two sets of protruding layers 43 are located on both sides thereon. The metal component 6 includes a metal strip 61 installed at the lower end of the protruding layer 43 and a metal strip 62 installed at the lower end of the protruding layer 44.

[0035] Specifically, metal strip 61 and metal strip 62 are used to protect protruding layer 43 and protruding layer 44, preventing them from touching the bottom, which are integrated with the ski board 4. Metal strip 61 and metal strip 62 are replaceable, so they can be replaced even if they wear out from touching the bottom.

[0036] Both metal strip 61 and metal strip 62 have threaded shafts 63 that extend upward through the sled 4 fixed to their upper ends. The threaded shafts 63 are fastened to the sled 4 by bolts.

[0037] By loosening and tightening the threaded shaft 63, metal strip 61 and metal strip 62 can be fixed and disassembled, facilitating installation.

[0038] Both metal strip 61 and metal strip 62 are die-cast sheet metals, and the ends of metal strip 61 and metal strip 62 are smoothly transitioned to protruding layer 43 and protruding layer 44 in an arc shape.

[0039] Specifically, the metal strips 61 and 62 of the metal sheet can be embedded into the hard snow blocks to a certain extent under the action of gravity, thus improving grip.

[0040] Both ends of the protruding layer 43 and the protruding layer 44 are smoothly transitioned to the sled 4 in an arc shape.

[0041] Specifically, metal strip 61 and metal strip 62, protruding layer 43 and protruding layer 44 are all smoothly curved, making it easier for the skis 4 to "climb" up snowdrifts or obstacles even when they come into contact with hard snow blocks or obstacles.

[0042] Working principle: The support shaft end 1 is part of the front suspension of the snowmobile, which is existing technology. During the snowmobile's operation, the skis 4 directly contact the snow and move along the undulating snow. Due to the connection block 1 31 and the connection block 2 32, the connection block 1 31 can be tilted on the connection block 2 32. With the metal frame 2 angle unchanged, the skis 4 can fit as closely as possible to the undulating snow, increasing the effective contact area and allowing the metal parts 6 to sink into the snow, increasing grip and minimizing sideslip during turns. like Figures 2-3As shown, the connecting shaft 314 can be separated by loosening the bolts, so the connecting block 31 can be taken out upwards, and the connecting block 32 can be taken out directly. The connecting block 32 with different tilt angle limiting surfaces 322 and 323 can be replaced to change the tilt angle of the ski board 4. It is even possible to replace the connecting block 32 with the limiting surface 322 and the inclined side 312, and the limiting surface 323 and the inclined side 313, depending on the environmental conditions, so that the ski board 4 can be made rigid. It should be noted that the loosening and adjustment of the connecting shaft 314 facilitates operation, simplifies the structure, and makes it less prone to damage.

[0043] As described above, the arc-shaped part 311 cooperates with the arc-shaped groove 321 so that the connecting block 31 can be supported on the connecting block 32, thus sharing the pressure on the connecting shaft 314.

[0044] Secondly, the snowboard 4 has a front arc-shaped end 41 and a rear arc-shaped end 42. The front arc-shaped end 41 is raised in the forward direction, and the rear arc-shaped end 42 is raised at the rear end. When the snowmobile is moving forward, the front arc-shaped end 4 makes it easier for the snowboard 4 to "climb" onto snowdrifts or obstacles, rather than sticking directly into the snow like a flat board. The rear arc-shaped end 42 serves the same purpose. When moving backward, it prevents the tail of the snowboard 4 from inserting into the snow. It should be noted that the front arc-shaped end 41 has a larger arc-shaped range than the rear arc-shaped end 42, because snowmobiles generally only move in the forward direction. Even when they can move backward, it is done slowly. The rear arc-shaped end 42 is smaller. Within the same area of ​​the snowboard 4, it can increase the area of ​​the horizontal part, and keep the snowmobile stably supported on the snow surface as much as possible.

[0045] The upper end of the front arc-shaped end 41 is supported by a support frame 45. The main function of the support frame 45 is to prevent the front arc-shaped end 41 from climbing over obstacles instead of deforming excessively.

[0046] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] The above provides a detailed description of the composite skis for snowmobiles provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A snowmobile composite ski, comprising a support axle end, a metal frame fixed to the support axle end, and a ski plate located at the lower end of the metal frame, characterized in that: The front end of the sled is a curved front end, and the rear end is a curved rear end. The upper end of the curved front end of the sled has a support frame for supporting it, and the upper end of the sled also has split reinforcing ribs. The lower end of the sled has a detachable metal component for directional control.

2. The snowmobile composite ski according to claim 1, characterized in that, A connecting part is installed between the metal frame and the sled, which is used to automatically adjust the angle between the metal frame and the sled.

3. The snowmobile composite ski according to claim 2, characterized in that, The connecting part includes connecting block one and connecting block two; Connecting block one is clamped inside the metal frame and is fixed. The integrated reinforcing rib on the sled plate forms an installation groove. Connecting block two is inserted into the installation groove. Connecting block one and connecting block two are in contact. A connecting shaft rotates through the inside of connecting block one. The connecting shaft passes through the inner wall of the installation groove formed by the reinforcing rib and its end is fastened by bolts.

4. The snowmobile composite ski according to claim 3, characterized in that, The lower end of the connecting block has an arc-shaped part and two inclined sides located on both sides of the arc-shaped part; The upper end of the connecting block 2 has an arc-shaped groove that matches the arc-shaped part, and a limiting surface 1 and a limiting surface 2 located on both sides of the arc-shaped groove. The limiting surface 1 and the inclined side 1 form an angle, and the limiting surface 2 and the inclined side 2 form an angle. When the tilt angle of the sled is different, the angle between the limiting surface 1 and the inclined side 1 and the angle between the limiting surface 2 and the inclined side 2 change accordingly.

5. The snowmobile composite ski according to claim 3, characterized in that, The lower end of the second connecting block is concave-convex, and the inner wall of the lower end of the mounting groove matches the lower end of the second connecting block.

6. The snowmobile composite ski according to claim 1, characterized in that, The support frame is made of metal. One end of it is fixed to the front arc-shaped end of the sled, and the other end is fixed to the upper reinforcing rib of the sled, which is used to fix the shape of the front arc-shaped end.

7. The snowmobile composite ski according to claim 1, characterized in that, The lower end of the sled has two sets of protruding layers and one set of protruding layers extending along the lower end of the sled. The protruding layer two is located in the middle of the lower end of the sled, and the two sets of protruding layers one are located on both sides of it. The metal components include a metal strip one installed at the lower end of the protruding layer and a metal strip two installed at the lower end of the protruding layer two.

8. The snowmobile composite ski according to claim 7, characterized in that, Both metal strip one and metal strip two have threaded shafts fixed to their upper ends, which extend upward through the sled board. The threaded shafts are fastened to the sled board by bolts.

9. The snowmobile composite ski according to claim 7, characterized in that, Both metal strip one and metal strip two are made of sheet metal by die casting, and the ends of metal strip one and metal strip two are smoothly transitioned to protruding layer one and protruding layer two by arc.

10. The snowmobile composite ski according to claim 7, characterized in that, Both ends of the first and second protruding layers have a smooth, curved transition with the sled.

Images