Multifunctional quick-change sleigh car

Abstract

The utility model relates to the technical field of sleigh cars, in particular to a multifunctional quick-change sleigh car which comprises a car head structure and a traction mechanism connected with the car head structure. The vehicle is characterized in that the traction mechanism comprises a connecting assembly with one end connected with the vehicle head structure, and a cushion and a driving assembly which are arranged on the connecting assembly; the driving assembly is detachably connected with the connecting assembly, and the driving assembly comprises a sleigh or a walking wheel. According to the sleigh car, the sleigh or the traveling wheels can be conveniently disassembled, assembled, replaced and maintained, meanwhile, the proper traveling assemblies can be selected according to different road conditions, so that impact and vibration of the road on the sleigh car are reduced, the traveling stability is improved, and the riding safety and comfort of the sleigh car are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sleds, in particular to a multifunctional quick-change sled. Background Art

[0002] A sled is a vehicle that can slide on snow or ice. Its design features and functions enable it to travel efficiently and stably in these special environments.

[0003] Snowmobiles originated from military technology and have been continuously improved and developed. Today, they are widely used in many occasions such as ski resorts, snow rescue, and transportation. Snowmobiles have a simple, reliable and durable body structure, and most of them use rubber tracks reinforced with metal wires. This track design allows snowmobiles to have a large climbing gradient and can travel stably in complex terrains. They can be used for rescue and transportation.

[0004] The prior art "A detachable traction track motor sled" (Announcement No.: CN110065587A) discloses a detachable sled, but the prior art still has the following technical problems:

[0005] 1. Since the sled needs to travel on the snow or ice for a long time, the sled under the seat will often rub against the ice or snow, resulting in increased wear and tear. The sled needs to be maintained, but the sled in the prior art is a box-type sled, which is very inconvenient to replace and maintain.

[0006] 2. The box-type sled is large in size. When the sled is not in use, it will take up more space and is not convenient for storage and transportation. Utility Model Content

[0007] The utility model provides a multifunctional quick-change snowmobile, which can solve the problem that the snowmobile of the prior art is difficult to disassemble, resulting in great inconvenience in replacement, maintenance and repair of the snowmobile.

[0008] The present application provides the following technical solutions: a multifunctional quick-change snowmobile, comprising a head structure and a traction mechanism connected thereto;

[0009] The traction mechanism comprises a connecting assembly with one end connected to the vehicle head structure, and a seat cushion and a travel assembly arranged on the connecting assembly; the travel assembly is detachably connected to the connecting assembly, and the travel assembly comprises a sled or a running wheel.

[0010] Beneficial effects: The detachable connection between the traveling component and the connecting component not only facilitates the disassembly, replacement and maintenance of the sled or running wheels, but also, due to the complex road conditions on ice or snow and the different flatness in different regions, the traveling component uses a sled or running wheels, which is convenient for replacement according to different road conditions. Using a sled on a flat road can speed up the driving speed, and using running wheels on an uneven road can reduce the impact and vibration of the road on the sled and improve the riding safety of the sled. At the same time, the connecting component and the traveling component can be quickly disassembled and can be split into smaller components when the sled is not in use, effectively saving placement space and facilitating storage and placement.

[0011] Furthermore, the connecting assembly includes a connecting rod, and movable joints and a mounting frame respectively connected to both ends of the connecting rod; the traveling assembly is detachably connected to the mounting frame.

[0012] Beneficial effect: When the sled is running, the movable joints can float up and down with the ups and downs of the ground, thereby reducing the vibration of the sled and improving riding safety and comfort.

[0013] Furthermore, the mounting frame includes an upper flat plate, an inclined plate, a lower flat plate and a bottom plate which are interconnected from top to bottom, the upper flat plate and the lower flat plate are respectively fixed at both ends of the inclined plate, the travel assembly is detachably connected under the bottom plate, and upper flat plates are provided on both sides of the connecting rod, and each upper flat plate is detachably connected to a mounting plate, and a seat cushion is fixed on the mounting plate.

[0014] Beneficial effect: The mounting frame is used to support the seat cushion, and the mounting frame adopts a structure that is combined and connected into a triangle, thereby improving the supporting stability of the seat cushion.

[0015] Furthermore, the movable joint comprises an intermediate arm and a traction arm which are pivotally connected to the end of the connecting rod in sequence, one end of the traction arm away from the intermediate arm is rotatably connected to the vehicle head structure, and the intermediate arm is located between the traction arm and the connecting rod.

[0016] Beneficial effect: The traction arm is used to connect the traction mechanism with the vehicle head structure, and the traction arm is rotatably connected with the vehicle head structure. When the vehicle head structure turns, it is beneficial for the traction mechanism to smoothly follow the turn.

[0017] Furthermore, the front structure includes a frame, an engine fixed on the frame, a driving mechanism fixed under the frame and a tensioning mechanism detachably connected to the frame, the tensioning mechanism includes an intermediate shaft detachably connected to the frame, two V-shaped tensioning frames are symmetrically fixed on the intermediate shaft, a front axle and a rear axle are fixed between the tensioning frames, a front tensioning wheel and a rear tensioning wheel are rotatably connected to the front axle and the rear axle respectively, the front tensioning wheel is located on the inner side of the two tensioning frames, and the rear tensioning wheel is located on the outer side of the two tensioning frames.

[0018] Beneficial effects: the tensioning frame is designed as a V-shaped structure, and the tensioning wheels are arranged at both ends of the tensioning frame, which can enhance the stability of the entire tensioning frame, and the V-shaped tensioning frame has an opening, which can minimize the occupied space of the structure and optimize the structural space layout; at the same time, the front tensioning wheel is arranged on the inner side of the two tensioning frames, and the rear tensioning wheel is arranged on the outer side of the two tensioning frames, which can evenly support the overall gravity of the sled, enhance the strength of the front structure of the sled, and improve the installation stability of the sled.

[0019] Furthermore, a middle hole and heat dissipation holes are opened on both sides of the frame, both ends of the intermediate shaft are inserted into the middle hole, U-shaped notches are opened on both sides of the frame, and strip holes are opened on one end of both sides of the frame away from the U-shaped notch.

[0020] Beneficial effects: the middle hole is convenient for installing the intermediate shaft, so that the tensioning frame is convenient for passing through the intermediate shaft, and the heat dissipation holes are convenient for discharging the heat inside the frame, increasing air flow, and preventing the parts inside the frame from being damaged due to overheating.

[0021] Furthermore, the driving mechanism also includes a driving shaft and a driven shaft, the driving shaft is located in the U-shaped notch, the driving shaft rod portion is fixedly connected to a driving gear, the end of the driving shaft is fixed to a driven pulley, the end of the driven shaft is detachably connected to the strip hole, and the driven shaft can slide in the strip hole, the rod portion of the driven shaft is rotatably connected to a roller, and the outer cylindrical sleeves of the driving gear, roller, front tensioning wheel and rear tensioning wheel are provided with tracks.

[0022] Beneficial effect: When the driving gear rotates, it drives the track to rotate. The roller, front tension wheel and rear tension wheel not only support the track, but also assist the track to rotate, thereby improving the track rotation efficiency and reducing wear. The driven shaft can slide along the strip hole to facilitate the adjustment of the tightness of the track.

[0023] Furthermore, a limiting mechanism is fixed on the frame, and the limiting mechanism includes a limiting plate and a limiting sleeve fixed on the limiting plate. The inner hole of the limiting sleeve is provided with an internal thread, and the inner hole of the limiting sleeve is threadedly connected with an adjusting stud, and the end of the adjusting stud is opposite to the driven shaft.

[0024] Beneficial effect: The adjusting stud is convenient for adjusting the distance between the stud and the driven shaft. When the driven shaft is adjusted to a suitable position in the strip hole, the adjusting stud is tightened so that the head of the adjusting stud is pressed against the driven shaft, thereby preventing the driven shaft from sliding in the strip hole and achieving the purpose of limiting.

[0025] Furthermore, the front structure also includes a reinforcing rib fixed on the frame, a front connecting frame is fixed on the reinforcing rib, a connecting arm is fixed in the middle of the front connecting frame, and an armrest is fixed at one end of the connecting arm away from the front connecting frame.

[0026] Beneficial effects: the vehicle head connection frame is used to support the handrail, and the driver can conveniently control the driving direction of the sled vehicle through the handrail.

[0027] Furthermore, the frame can be detachably connected to a snow pushing mechanism, which includes a snow pushing plate, an adjusting arm and a support arm. The support arm and the adjusting arm are provided with multiple screw holes. One end of the adjusting arm is screwed to the rod portion of the support arm, and the snow pushing plate is pivotally connected to the ends of the support arm and the adjusting arm.

[0028] Beneficial effect: the support arm and the adjustment arm are provided with a plurality of screw holes, and one end of the adjustment arm is screwed to the rod of the support arm, so that the installation position between the adjustment arm and the support arm can be adjusted conveniently, thereby facilitating the adjustment of the snow pushing angle of the snow pusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axonometric view of the utility model.

[0030] Figure 2 for Figure 1 Axonometric view of center rack 2.

[0031] Figure 3 for Figure 1 Axonometric view of the drive mechanism below the middle frame 2 without the track 3.

[0032] Figure 4 This is an axonometric view of the traction mechanism (the traveling component is a sled).

[0033] Figure 5 An axle-sectional view of a sled with a snow-push mechanism.

[0034] Figure 6 This is the axonometric view of the traction mechanism (the traveling component is the running wheels). DETAILED DESCRIPTION

[0035] The following is further described in detail through specific implementation methods:

[0036] The symbols in the drawings of the specification include: engine 1, frame 2, round hole 201, mounting hole 202, U-shaped notch 203, middle hole 204, strip hole 205, heat dissipation hole 206, engine positioning hole 207, sleeve hole 208, crawler 3, driven pulley 4, belt 5, rear tensioning wheel 6, connecting rod 7, cushion 8, inclined plate 9, upper plate 91, lower plate 92, sled 10, rib plate 101, connecting plate 102, bottom plate 11, driving shaft 12, Intermediate shaft 13, driven shaft 14, roller 15, rear axle 16, tensioning frame 17, driving gear 18, brake disc 19, disc brake 20, adjusting stud 21, limiting plate 22, limiting sleeve 23, mounting plate 24, traction column 25, reinforcing rib 26, U-shaped bend 27, traction arm 28, intermediate arm 29, connecting arm 30, handrail 31, front axle 32, tire 33, wheel axle 34, bearing seat 35, support arm 36, snow pusher 37, adjusting arm 38.

[0037] Embodiment 1

[0038] like Figures 1 to 4 As shown, a multifunctional quick-change sled vehicle includes a front structure and a traction mechanism connected thereto, wherein the front structure includes a frame 2, an engine 1 fixed to the frame 2, a driving mechanism fixed below the frame 2, and a tensioning mechanism detachably connected to the middle below the frame 2.

[0039] like Figure 2 As shown, a circular hole 201, a plurality of mounting holes 202 and an engine positioning hole 207 are provided on the frame 2, a middle hole 204 is provided in the center of the two side plates of the frame 2, a plurality of heat dissipation holes 206 are provided above the middle hole 204, a strip hole 205 is provided on one side of the middle hole 204, and a U-shaped notch 203 is provided on the other side of the middle hole 204; the engine 1 is fixed to the frame 2 by screws through the engine positioning hole 207, and a driving pulley is keyed to the end of the output shaft of the engine 1.

[0040] like Figure 3As shown, the tensioning mechanism includes relatively arranged tensioning frames 17, and a front axle 32, an intermediate shaft 13, and a rear axle 16 arranged on two tensioning frames 17; the tensioning frames 17 are opened downward to form an inverted V shape, and the intermediate shaft 13 is welded at the top inflection points of the two tensioning frames 17, and both ends of the intermediate shaft 13 are provided with threads, and both ends of the intermediate shaft 13 extend into the middle hole 204 on the frame 2 and are locked and fixed with nuts. The front axle 32 and the rear axle 16 are respectively connected to the two lower ends of the tensioning frame 17. Two front tensioning wheels are rotatably provided on the front axle 32 through ball bearings (the inner ring of the ball bearing and the front axle 32 are interference fit, and the outer ring of the ball bearing and the inner hole of the front tensioning wheel are interference fit), and the front tensioning wheel is located on the inner side of the two tensioning frames 17; two rear tensioning wheels 6 are also rotatably provided on the rear axle 16 through ball bearings (the connection method thereof is the same as the connection method between the front axle 32 and the ball bearing), and the rear tensioning wheel 6 is located on the outer side of the two tensioning frames 17.

[0041] The driving mechanism includes a driving shaft 12 and a driven shaft 14 respectively arranged on both sides of the tensioning mechanism, a driving gear 18 and a roller 15 respectively arranged on the driving shaft 12 and the driven shaft 14, and a crawler 3 sleeved on the outer circumference of the driving gear 18, the roller 15, the front tensioning wheel and the rear tensioning wheel 6; flat steps are provided at both ends of the driven shaft 14, so that both ends of the driven shaft 14 can be inserted into the strip holes 205 on the frame 2 and extend out of both sides of the frame 2, and the driven shaft 14 can slide in the strip holes 205, and the heads at both ends of the driven shaft 14 are axially provided with threaded holes, and screws are passed through the gaskets. The driven shaft 14 is then screwed into the threaded hole at the end of the driven shaft 14 (the outer diameter of the gasket is larger than the width of the strip block), and the driven shaft 14 can be fixed on the frame 2. The roller 15 is rotatably connected to the rod of the driven shaft 14 through a ball bearing (the connection method here is the same as the connection method between the front shaft 32 and the front tensioning wheel); the driving shaft 12 is located in the U-shaped notch 203 of the frame 2, and shaft sleeve holes 208 are opened on both sides of the U-shaped notch 203. The shaft sleeve hole 208 is screwed with an annular shaft sleeve (the shaft sleeve is omitted in the figure), the driving shaft 12 is inserted into the inner hole of the shaft sleeve, and one end of the driving shaft 12 is keyed as shown in the figure. Figure 1 The driven pulley 4 shown is connected to the driving pulley at the end of the output shaft of the engine 1 through a belt 5. The rod of the driving shaft 12 is interference-fitted with a driving gear 18. The track 3 sets the driving gear 18, the roller 15, the front tension wheel and the rear tension wheel 6 therein, and the outer circumference of the driving gear 18, the roller 15, the front tension wheel and the rear tension wheel 6 is in contact with the inner surface of the track 3 to tighten the track. A brake disc 19 is fixed to the end of the driving shaft 12 away from the driven pulley 4. A disc brake 20 is arranged above the brake disc 19. The disc brake 20 is screwed to the side of the frame 2. The brake disc 19 is located between the two friction plates of the disc brake 20. The friction plates of the disc brake 20 can clamp the brake disc 19, thereby braking the driving shaft 12 and playing a braking function.

[0042] like Figure 3 As shown, a limiting mechanism is also fixed on the frame 2, and the limiting mechanism includes a limiting plate 22, a limiting sleeve 23 and an adjusting stud 21; the limiting plate is fixed to the inner side of the side plate of the frame 2, the limiting sleeve 23 is welded and fixed on the limiting plate 22, the inner hole of the limiting sleeve 23 is provided with an internal thread, the adjusting stud 21 is threadedly connected in the inner hole of the limiting sleeve 23, and the end of the adjusting stud 21 is facing the driven shaft 14.

[0043] like Figure 4 As shown, the front structure also includes a reinforcing rib 26 fixed to the frame 2, a front connection frame is fixed to the reinforcing rib 26, the front connection frame is a U-shaped elbow 27, a connecting arm 30 is welded and fixed to the middle of the front connection frame, and a handrail 31 is welded and fixed to the end of the connecting arm 30 away from the front connection frame.

[0044] like Figure 4 As shown, the traction mechanism includes a connecting assembly connected to the front structure at one end, and a seat cushion and a travel assembly arranged on the connecting assembly; the travel assembly is detachably connected to the connecting assembly, and the travel assembly includes a sled or a running wheel;

[0045] The connecting assembly includes a connecting rod 7, and movable joints and a mounting frame respectively connected to both ends of the connecting rod 7; the traveling assembly is detachably connected to the mounting frame;

[0046] The movable joint includes an intermediate arm 29 and a traction arm 28 which are pivotally connected to the ends of the connecting rod in sequence. The intermediate arm 29 is located between the traction arm 28 and the connecting rod 7. The end of the traction arm 28 away from the intermediate arm 29 is a ring-shaped end. A traction column 25 is sleeved in the ring-shaped end. The bottom end diameter of the traction column 25 is larger than the rod diameter. A threaded hole is provided at the top end of the traction column 25. The top end of the traction column 25 passes through the circular hole 201 and the reinforcing rib 26 on the frame 2 from bottom to top and extends to the top of the reinforcing rib 26. The top end of the traction column 25 can be inserted into the ring-shaped end of the traction arm 28, and the traction arm 28 can rotate around the rod of the traction column 25. The traction arm 28 can be prevented from falling out of the rod of the traction column 25 by screwing a screw into the threaded hole at the top end of the traction column 25.

[0047] The mounting frame is a tripod, including an upper plate 91, an inclined plate 9, a lower plate 92 and a bottom plate 11 which are interconnected from top to bottom. The upper plate 91, the inclined plate 9 and the lower plate 92 are integrally formed. The upper plate 91 and the lower plate 92 are respectively fixed at both ends of the inclined plate 9. The upper plate 91 is fixed to the two side surfaces of the connecting rod 7 by screws. The two sides of the upper plate 91 away from the connecting rod 7 are respectively connected with L-shaped mounting plates 24 by screws, and a seat cushion 8 is fixed with screws above the mounting plate 24.

[0048] The travel assembly includes a sled 10 or a travel wheel, such as Figure 4As shown, the sled 10 is fixed to both ends of the bottom plate 11 by screws respectively. The sled 10 is provided with an integrally formed rib plate 101, and a horizontal connecting piece 102 is fixed above the rib plate 101. The connecting piece 102 is screwed between the lower flat plate 92 and the upper surface of the bottom plate 11.

[0049] like Figure 6 As shown, the running wheel includes a wheel axle 34, a bearing seat 35 arranged on the rod of the wheel axle 34 and a tire 33 fixed at both ends of the wheel axle 34. There are two bearing seats 35, which are screwed under the base frame 11 respectively. Bearings are installed in the bearing seats 35, and the wheel axle 34 passes between the two bearing seats 35.

[0050] like Figure 5 As shown, the frame 2 is also screwed with a snow pushing mechanism, which includes a snow pushing plate 37, an adjusting arm 38 and a support arm 36. The support arm 36 and the adjusting arm 38 are provided with a plurality of screw holes. The support arm 36 is provided with a plurality of screw holes, which can correspond to the mounting holes 202 on the frame 2, so as to facilitate locking the support arm 36 on the frame 2 with screws. One end of the adjusting arm 38 is screwed to the rod of the support arm 36. An integrally formed mounting ear is provided behind the snow pushing plate 37. The ends of the support arm 36 and the adjusting arm 38 are pivotally connected to the mounting ears behind the snow pushing plate 37.

[0051] When in use, the traveling components can be replaced according to different road conditions. Using the sled 10 to travel on a flat road can increase the travel speed. Using the running wheels on an uneven road can reduce the impact and vibration of the road surface on the sled. Replacement only requires loosening the connecting screws at both ends of the bottom plate 11, so that the connecting piece 102 on the sled 10 or the bearing seat 35 on the running wheel can be quickly disassembled and replaced.

[0052] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A multifunctional quick-change snowmobile, comprising a head structure and a traction mechanism connected thereto; characterized in that: The traction mechanism includes a connecting assembly connected to the vehicle head structure at one end, and a seat cushion and a travel assembly arranged on the connecting assembly; the travel assembly is detachably connected to the connecting assembly, and the travel assembly includes a sled or a running wheel; The connecting assembly includes a connecting rod, and movable joints and a mounting frame respectively connected to both ends of the connecting rod; the traveling assembly is detachably connected to the mounting frame; The mounting frame includes an upper flat plate, an inclined plate, a lower flat plate and a bottom plate which are interconnected from top to bottom. The upper flat plate and the lower flat plate are respectively fixed at both ends of the inclined plate. The travel component is detachably connected under the bottom plate. Upper flat plates are provided on both sides of the connecting rod, and each upper flat plate is detachably connected with a mounting plate, and a seat cushion is fixed on the mounting plate.

2. The multifunctional quick-change snowmobile according to claim 1, characterized in that: The movable joint comprises an intermediate arm and a traction arm which are pivotally connected to the end of the connecting rod in sequence, one end of the traction arm away from the intermediate arm is rotatably connected to the vehicle head structure, and the intermediate arm is located between the traction arm and the connecting rod.

3. The multifunctional quick-change snowmobile according to claim 2, characterized in that: The front structure includes a frame, an engine fixed on the frame, a driving mechanism fixed under the frame and a tensioning mechanism detachably connected to the frame, the tensioning mechanism includes an intermediate shaft detachably connected to the frame, two V-shaped tensioning frames are symmetrically fixed on the intermediate shaft, a front axle and a rear axle are fixed between the tensioning frames, a front tensioning wheel and a rear tensioning wheel are rotatably connected to the front axle and the rear axle respectively, the front tensioning wheel is located on the inner side of the two tensioning frames, and the rear tensioning wheel is located on the outer side of the two tensioning frames.

4. The multifunctional quick-change snowmobile according to claim 3, characterized in that: The frame is provided with a middle hole and heat dissipation holes on both sides, the two ends of the intermediate shaft are inserted into the middle hole, the frame is provided with U-shaped notches on both sides, and strip holes are provided on one end of the two sides of the frame away from the U-shaped notches.

5. The multifunctional quick-change snowmobile according to claim 4, characterized in that: The driving mechanism includes a driving shaft and a driven shaft, the driving shaft is located in the U-shaped notch, the rod portion of the driving shaft is fixedly connected to a driving gear, the end of the driving shaft is fixed to a driven pulley, the end of the driven shaft is detachably connected to the strip hole, and the driven shaft can slide in the strip hole, the rod portion of the driven shaft is rotatably connected to a roller, and the outer cylindrical sleeves of the driving gear, roller, front tensioning wheel and rear tensioning wheel are provided with tracks.

6. The multifunctional quick-change snowmobile according to claim 5, characterized in that: A limiting mechanism is also fixed on the frame, and the limiting mechanism includes a limiting plate and a limiting sleeve fixed on the limiting plate, the inner hole of the limiting sleeve is provided with an internal thread, the inner hole of the limiting sleeve is threadedly connected with an adjusting stud, and the end of the adjusting stud is directly opposite to the driven shaft.

7. The multifunctional quick-change snowmobile according to claim 3, characterized in that: The vehicle head structure also includes a reinforcing rib fixed on the frame, a vehicle head connecting frame is fixed on the reinforcing rib, a connecting arm is fixed to the middle of the vehicle head connecting frame, and an armrest is fixed to one end of the connecting arm away from the vehicle head connecting frame.

8. The multifunctional quick-change snowmobile according to claim 7, characterized in that: The frame is also detachably connected to a snow pushing mechanism, which includes a snow pushing plate, an adjusting arm and a supporting arm. The supporting arm and the adjusting arm are provided with a plurality of screw holes. One end of the adjusting arm is screwed to the rod of the supporting arm, and the snow pushing plate is pivotally connected to the ends of the supporting arm and the adjusting arm.

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