CN111054049A - Grass sliding device - Google Patents

Abstract

The invention relates to the technical field of grass-sliding recreation facilities, and particularly discloses a grass-sliding device which comprises a guide rail assembly and a sliding vehicle in sliding guide fit with the guide rail assembly, wherein the guide rail assembly comprises a tubular guide rail with an opening at the upper part, the sliding vehicle comprises a vehicle body and a vehicle frame which are fixedly connected, a pulley is arranged at the bottom of the vehicle frame, and the pulley is positioned in the tubular guide rail. The grass sliding device comprises the tubular guide rail and the sliding vehicle, and the sliding vehicle can slide along the bottom surface of the tubular guide rail under the condition of small friction force due to the adoption of the pulley with larger size and the adoption of the section steel formed in one step, so that the requirement on the ground gradient is reduced, the workload of an earth heap is reduced, and the sliding vehicle can slide at higher speed; the grass sliding device is provided with a safe departure device and a braking and decelerating section, and can respectively control the starting and stopping of the scooter.

Description

Grass sliding device

Technical Field

The invention relates to the technical field of grass skating entertainment facilities, and particularly discloses a grass skating device.

Background

There are several existing grass skating sports:

1. non-wheel type

Basin type trackless type. A user of the grass skating vehicle sits in the sliding basin and glides from the top of a slope to the bottom of the slope, the height of the ground paved with turf rotates, rises or falls along with the basin in the gliding process, slight jolting feeling is achieved, and the sliding vehicle is non-directional and can rotate during gliding, so that the phenomenon of dizziness is easily caused. The sliding distance is shorter.

The basin type has a rail type. The slide basin slides in a slide pit on the ground, flanges are arranged on two sides of the slide pit, and artificial turf is laid on the surface of the slide pit to reduce the friction coefficient. The slide basin can only slide along the slide pit and has certain directionality; the sliding has a certain bumpiness feeling, and the sliding distance is short.

2. Crawler-type. The pulley of coaster is replaced with the track to the crawler, and the visitor sits on the coaster, because the area of contact of track and ground is great, so jolt and feel less, so be difficult to sink and so can slide far away.

The crawler-type grass skating shoes are similar to skating shoes worn on feet, the bottom of each shoe is provided with a crawler, a tourist needs to hold a grass skating stick to support the grass skating shoes when sliding, the skating can be continued by the aid of the assistance of a person when the gradient is not large, the skating distance is longer, and the skating risk depends on the skill level and proficiency level of a rider.

3. The wheeled belt track type. The bottom of the grass sliding vehicle is provided with a roller with a bearing, sliding friction of the pot-shaped grass sliding is changed into rolling friction, and meanwhile, because the rail is linear, kinetic energy loss in the sliding process is reduced, the speed is higher, and the sliding distance is longest.

The utility model with the bulletin number of CN205867518U discloses a grass sliding tool, which comprises a frame, wherein the frame comprises a seat, at least three support legs are uniformly fixed on the periphery of the seat, and each support leg is connected with a universal wheel; the grass skating vehicle uses the universal wheels as moving parts to roll on a grassland, so that the grass skating vehicle does not need to lay grass on the grassland, the grassland is not damaged, and the grass skating vehicle is suitable for multiple terrains; this grass-sliding vehicle utilizes the universal wheel to roll as the moving member on the meadow in addition, relies on gravitational potential energy to slide to low from the eminence, and in sliding, because the uneven resistance that leads to every wheel of the height on road surface leads to the automobile body can rotate, also plays the brake effect of hindering fast, and this grass-sliding vehicle's structure has decided can not slide further distance, and speed is also not high, experiences and feels not strong enough.

The utility model with the bulletin number of CN207928687U discloses a grass skating vehicle, which mainly relates to grass skating equipment. The multifunctional sitting tool comprises a frame, wherein the frame comprises a sitting tool, at least three ball wheel covers are uniformly arranged on the periphery of the sitting tool, adaptive ball wheels are arranged in the ball wheel covers, and the ball wheels are limited in the ball wheel covers and can roll in the ball wheel covers in a limiting mode. The invention has the beneficial effects that: the whole structure is detachable, the installation degree is high, and the carrying, the transportation, the maintenance and the maintenance are convenient. The spherical wheel is adopted to replace the universal wheel, so that torsion does not exist in the grass sliding process, the grass sliding and rotating process is smoother, a good sliding effect is achieved on S-shaped side bends, and the grass sliding device is suitable for being close to all terrains. The spherical wheel is provided with the micro-elastic protection part for protecting the spherical wheel, when the vehicle body touches the guardrail in the sliding process, the spherical wheel and the guardrail cannot be in rigid collision, and the grass sliding process is safer and smoother. The grass-skating vehicle body is provided with objects such as a similar gripper and the like for maintaining the stability and balance of the body, so that the stability and the safety in the grass-skating process are improved.

The wheels of the grass sliding tool disclosed by the scheme are universal wheels or spherical wheels, the sliding track is not fixed, and the grass sliding tool is easy to generate dizziness due to non-directional rotation during sliding. The uncertain factors influencing the safety in the sliding process are more, so the safety performance is poorer.

Disclosure of Invention

The invention provides a method for overcoming the defects of the prior art.

In order to solve the technical problems, the invention adopts the following technical scheme:

a grass sliding device comprises a guide rail assembly and a sliding vehicle matched with the guide rail assembly in a sliding and guiding mode, wherein the guide rail assembly comprises a tubular guide rail with an opening in the upper portion, the sliding vehicle comprises a vehicle body and a vehicle frame which are fixedly connected, and pulleys are arranged at the bottom of the vehicle frame and are located in the tubular guide rail.

Preferably, the lower part of the frame is provided with an ear plate group, the bottom of the ear plate is rotatably connected with pulleys through pulley shafts, each pulley comprises a left wheel body and a right wheel body which are coaxially arranged, and the pulleys roll in the tubular guide rail.

Preferably, the width of the tubular rail opening is less than the width of the pulley.

Preferably, be equipped with safe departure mechanism at tubular guide's initiating terminal, safe departure mechanism is including locating the footboard mount in the tubular guide outside, with footboard mount articulated footboard and with the footboard be connected block the axle, correspond the department with the footboard mount on tubular guide and be equipped with horizontally guide axle sleeve, block the inner chamber that the axle stretched into tubular guide behind passing guide axle sleeve, the footboard is obtuse folded plate for the dog-ear, the department of buckling and the footboard mount of footboard are articulated, are equipped with a slot hole in the upper end of footboard, the one end that blocks the axle is connected and can slide in the slot hole through round pin axle and footboard top, is equipped with the extension spring between footboard mount and footboard.

Preferably, set up brake mechanism at the end of tubulose guide rail, brake mechanism includes first angle steel group and second angle steel group from the past backward in proper order, both sides tubulose guide rail top is all located to first angle steel group and second angle steel group, is equipped with the brake block with pulley sliding friction in the inboard of angle steel top surface, and first angle steel group and second angle steel group all are connected with the tubulose guide rail through the mount, the mount is established the U type frame in tubulose guide rail bottom for the cover.

Preferably, the second angle steel group is connected with the tubular guide rail through a fixing frame, a long hole is formed in the outer side face of the second angle steel group, the second angle steel group is connected into the long hole through a fixing bolt, and the front end of the second angle steel group is lower than the rear end of the second angle steel group.

Preferably, the first angle steel group is fixedly connected with the tubular guide rail through a connecting mechanism of the tubular guide rail, the connecting mechanism comprises a hinged seat positioned at the rear end of the first angle steel group and a tension spring seat positioned in the middle of the first angle steel group, the front end of the first angle steel group is provided with a cam resetting seat, the hinge seat is hinged with the rear end of the first angle steel group, the tension spring seat comprises a lower spring hook fixed with the tubular guide rail, an upper spring hook fixed with the top of the first angle steel group and a tension spring connected between the lower spring hook and the upper spring hook, the front end of the first angle steel group inclines downwards by taking the hinged seat as a fulcrum under the action of the tension spring, a hand lever is hinged at the tail end of the tubular guide rail, a supporting block is arranged on the first angle steel group corresponding to the cam reset seat, the cam reset seat comprises a cam, the bottom surface of the supporting block is pressed against the top of the cam, the bottom of the cam is connected with a hand lever through a crank, and a flexible shaft is arranged between the hand lever and the crank.

Preferably, a guide seat is arranged outside the first angle steel group, the guide seat is arranged outside the fixed frame and forms a guide groove with the fixed frame, and the first angle steel group slides in the guide groove.

Preferably, the openings of the cross sections of the departure end and the tail end of the tubular guide rail are in an open state.

Preferably, the body of the scooter body is provided with an abdominal safety belt, the front and rear parts of the body are respectively provided with side guards, the side guards are provided on both the left and right sides, and the safety belt is provided with a safety belt buckle.

The invention has the beneficial effects that:

1. the grass sliding device comprises the tubular guide rail and the sliding vehicle, and the sliding vehicle can slide along the smooth bottom surface of the tubular guide rail under the condition of small friction force due to the adoption of the pulleys with larger sizes and the adoption of the section steel formed in one step, so that the requirement on the ground gradient is reduced, the workload of an earth heap is reduced, and the sliding vehicle can slide at higher speed.

2. The pair of pulleys of the scooter completely roll and slide in the inner cavity of the tubular guide rail, and meanwhile, the two outer side surfaces of the single pair of pulleys separated into two parts are in intermittent contact with the side walls of the left inner cavity and the right inner cavity of the tubular guide rail respectively and are limited, so that the scooter can be prevented from being blocked due to partial sliding, potential safety hazards are reduced, the separation structure of each pair of pulleys is equivalent to that backup pulleys exist constantly, and derailment of the scooter is prevented to the maximum extent.

3. The grass sliding device is provided with a safe departure device and a braking and decelerating section, and can respectively control the starting and stopping of the scooter.

4. The device can release the braking effect on the pulley through the cam reset seat after the scooter brakes, so that the pulley continues to slide and slide out of the opening at the cross section of the tail end of the tubular guide rail, and the scooter is pulled out for recycling.

Drawings

FIG. 1 is a front view of the present invention in use;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;

FIG. 5 is a cross-sectional view taken along line D-D of FIG. 1;

FIG. 6 is a cross-sectional view taken along line E-E of FIG. 1;

FIG. 7 is a first state view of the cam reset seat of FIG. 1;

FIG. 8 is a second state view of the cam reset seat of FIG. 1;

figure 9 is a front view of the scooter of figure 1 in use;

figure 10 is a left side elevational view of the scooter of figure 1;

FIG. 11 is a state diagram one of the safety departure mechanism of FIG. 10;

fig. 12 is a state diagram of the safety departure mechanism of fig. 10.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

As shown in fig. 1 to 12, a grass-sliding device comprises two tubular guide rails 9 arranged in parallel and a sliding vehicle in sliding fit with the tubular guide rails, wherein the sliding vehicle comprises a vehicle body 1 and a vehicle frame 12 connected to the lower portion of the vehicle body 1, an ear plate group is arranged on the lower portion of the vehicle frame 12, a pulley 21 is rotatably connected to the bottom of each ear plate 23 through a pulley shaft 22, the tubular guide rails 9 are tubular guide rails with openings at the upper portions, and the openings are used for the ear plates 23 to penetrate through. The scooter can slide along the smooth inner cavity bottom surface of the tubular guide rail 9 under small frictional resistance, thereby reducing the requirement on the gradient of a construction site,

furthermore, in order to reduce the risk of the skid being stuck due to the excessive sideslip to the unilateral tubular guide rail 9, each pulley 21 comprises a left wheel body and a right wheel body which are coaxially arranged, the outer side surfaces of the wheel bodies are in intermittent contact with the inner side surface of the tubular guide rail 9, so that the skid is prevented from continuously sideslipping, the safety of the skid is ensured, and meanwhile, the risk of derailment is further reduced due to the backup use of paired pulleys 21.

Further, the width of the opening of the tubular guide rail 9 is smaller than that of the pulley 21, the pulley 21 is completely wrapped by the tubular guide rail 9, derailment is avoided, and the safety of the device is guaranteed.

Further, as shown in fig. 11 and 12, in order to facilitate orderly and timely release of the scooter, a safe departure mechanism is arranged at the starting end of the tubular guide rail 9, the safe departure mechanism comprises a pedal fixing frame 33 arranged at the outer side of the tubular guide rail 9, a pedal 28 hinged to the pedal fixing frame 33, and a blocking shaft 35 connected to the pedal 28, a horizontal guide shaft sleeve 34 is arranged at a position, corresponding to the pedal fixing frame 33, at the outer side of the tubular guide rail 9, the blocking shaft 35 penetrates through the guide shaft sleeve 34 and then extends into the inner cavity of the tubular guide rail 9, the pedal 28 is a folded plate with an obtuse folding angle, the folded position of the pedal 28 is hinged to the pedal fixing frame 33, a long hole 27 is arranged at the upper end of the pedal 28, and one end of the blocking shaft 35 is connected to the top of the pedal 28 through a pin shaft and can slide in the. When the pedal 28 is pressed, the pedal 28 rotates clockwise around the hinge point 38 on the pedal fixing frame 33, so that the blocking shaft 35 is driven to slide out of the inner cavity of the tubular guide rail 9 along the guide shaft sleeve 34, and the effect of releasing the pulley 21 is achieved.

Furthermore, in order to timely reset the blocking shaft 35 after the blocking shaft 35 slides out of the released scooter, a spring 36 is arranged between the pedal fixing frame 33 and the pedal 28, and after the pedal 28 is released, the pedal 28 rotates anticlockwise under the action of the pulling force of the spring 36, so that the blocking shaft 35 is driven to slide into the inner cavity of the tubular guide rail 9 again to block the next scooter.

Further, for the convenience of braking, the brake mechanism is arranged at the tail end of the tubular guide rail 9, the brake mechanism sequentially comprises a first angle steel set 3 and a second angle steel set 11 from front to back, the first angle steel set 3 and the second angle steel set 11 are arranged at the top of the tubular guide rail 9 and are arranged along the length of the tubular guide rail 9, a brake block 15 in sliding friction with a pulley 21 is arranged on the inner side of the top surface of each angle steel, the first angle steel set 3 and the second angle steel set 11 are connected with the tubular guide rail 9 through a fixing frame 10, and the fixing frame 10 is a U-shaped frame sleeved at the bottom of the tubular guide rail 9.

Further, the second angle steel group 11 is connected with the tubular guide rail 9 through a fixing frame 10 arranged at the bottom of the tubular guide rail 9, a long hole is formed in the outer side surface of the second angle steel group 11, and the second angle steel group 11 is connected in the long hole through a fixing bolt 25.

Furthermore, in order to gradually increase the friction force of the brake block 15 on the scooter and not generate sudden braking, the position of the second angle steel group 11 is adjusted through the elongated hole, so that the front end of the second angle steel group 11 is lower than the rear end, and the friction force of the front end is greater than that of the rear end. The second set of angles 11 generates a light friction on the pulleys 21 of the scooter, causing it to continue to slow down.

Further, as shown in fig. 3 and 5, the first angle steel set 3 is connected with the tubular guide rail 9 through a connecting mechanism, and the fixing mechanism includes a hinge seat 8 located at the rear end of the tubular guide rail 9 and a tension spring seat 7 located in the middle of the tubular guide rail 9.

Further, articulated seat 8 is articulated with the rear end of first angle steel group 3, extension spring seat 7 includes 19, with the fixed spring of first angle steel group 3 top couple 17 and connect the extension spring 18 between the two under the spring fixed with tubular guide rail 9 couple down, 19 couple fixed connection through the lower couple fixed plate 20 who locates tubular guide rail 9 bottom under the spring. Under the action of the tension spring 18, the front end of the first angle steel set 3 inclines downwards by taking the hinge seat 8 as a fulcrum, so that the friction force of the scooter entering the first brake mechanism is gradually increased, and the scooter is braked and stopped.

Further, as shown in fig. 3, in order to avoid the outward turning of the angle iron set during the up-and-down sliding process, a guide seat 29 is arranged outside the first angle iron set 3, and the guide seat 29 is arranged outside the fixed frame 10 and forms a guide groove with the fixed frame 10, so that the outward turning of the first angle iron set 3 does not occur when the first angle iron set slides in the guide groove.

Furthermore, in order to pull out the braked and stopped scooter, a cam reset seat is arranged at the forefront end, a hand lever 14 is hinged at the tail end of the tubular guide rail 9, and the hand lever 14 is used for controlling the rotation of the cam 4 of the cam reset seat. The supporting block 2 is arranged at the position, corresponding to the cam resetting seat, of the first angle steel group 3, the cam resetting seat comprises a cam 4, the bottom surface of the supporting block 2 is pressed on the top of the cam 4, the bottom of the cam 4 is connected with a hand lever 14 through a crank 5, and a section of flexible shaft 6 playing a transmission role is arranged between the hand lever 14 and the crank 5.

Further, in order to prevent the flexible shaft 6 from being wound, the flexible shaft 6 penetrates through the fixed shaft sleeve 24 and then is connected with the bottom of the hand lever 14.

First angle steel group 3 is floating, realizes respectively that two operations are relieved to the pulling and pressing speed reduction and the lifting of scooter:

as shown in fig. 1 and 7, during the pulling and pressing deceleration, the front end of the first angle steel set 3 is pulled down under the action of the tension spring 18, so that the brake block 15 generates heavy continuous friction resistance on the pulley 21 until the pulley 21 is forced to stop;

as shown in fig. 1 and 8, when the lifting is released, namely, the worker releases the braking function of the scooter, the handle bar 14 is pushed forward, the flexible shaft 6 is pulled at the bottom of the handle bar 14 to drive the crank 5 to rotate clockwise, the cam 4 positioned at the top of the crank 5 jacks up the first angle steel group 3 through the supporting block 2, the friction force of the first angle steel group 3 on the pulley 21 is released, and then the worker pulls out the scooter.

Furthermore, the brake mechanism generates friction on the pulley 21 of the scooter to continuously decelerate and stop, and a plurality of groups of first angle steel groups 3 or a plurality of groups of second angle steel groups 11 can be selected to be assembled in series according to actual conditions as required.

Further, in order to facilitate the entry of the pulley 21 of the scooter into the tubular rail 9, the opening is opened at the left and right cross sections of the departure end of the tubular rail 9.

Further, in order to facilitate the pulley 21 of the scooter to be separated from the inner groove of the tubular guide rail 9, the cross section of the end of the tubular guide rail 9 is an open-type opening.

Further, in order to keep the distance between the two tubular guide rails 9 consistent, the bottom parts of the left and right tubular guide rails are fixedly connected with connecting blocks 26, a connecting rod 32 is detachably connected between the left and right connecting blocks 26, and the tubular guide rails 9 are fixedly connected with the ground through the connecting blocks 26.

Further, for ease of splicing and transport, the single tubular rails 9 are connected in series by the connecting plates 30.

Further, in order to protect the user of the scooter, the body 1 of the scooter body is provided with an abdominal belt 13, and side blocks are respectively arranged on the left side and the right side and in the front and rear direction, and the belt 13 is provided with a belt buckle 37.

Furthermore, in order to limit the users of the scooter, the surface of the saddle of the scooter is concave, the length of the saddle is 1.3-1.5 m, the depth of the saddle is 0.5-0.8 m, and the width of the saddle is 0.5-0.8 m.

In use of the device, the pulley 21 of the scooter is inserted into the tubular rail 9 from the starting end of the tubular rail 9 at the rear side, and the blocking shaft 35 is extended to block the pulley 21. At this time, the user sits in the scooter body 1 from the side, then buckles the safety belt buckle 37, the two hands cross the abdomen guard and do not extend out of the side stop, and then the service personnel steps on the pedal 28 to drive the stop shaft 35 to retract outwards and enable the scooter to slide along the tubular guide rail 9.

When the scooter slides to the tail end region of the tubular guide rail 9, the pulley 21 enters the second angle steel group 11, the pulley 21 is extruded downwards by the brake block 15 to continuously decelerate, then the pulley 21 continuously slides to the first angle steel group 3 until stopping, after the scooter completely stops, a worker pulls the hand lever 14 to rotate anticlockwise, the hand lever 14 finally drives the cam 4 to rotate clockwise through the flexible shaft 6, the cam 4 jacks the first angle steel group 3 through the support block 2, the braking effect on the pulley 21 is relieved, the pulley 21 continuously slides and slides out of the cross section at the tail end of the tubular guide rail 9 to open, and the scooter is pulled out for cycle use.

The grass skating device comprises a tubular guide rail 9 and a scooter, wherein the scooter is made of a pulley 21 with a larger size, and meanwhile, the tubular guide rail 9 is made of one-step formed section steel, so that the scooter can slide along the smooth bottom surface of the tubular guide rail 9 under the condition of small friction force, the requirement on the ground gradient is reduced, the workload of an earth heap is reduced, and the scooter can slide at a higher speed. The 4 pairs of pulleys 21 of the scooter completely roll and slide in the inner cavity of the tubular guide rail 9, and simultaneously, the two outer side surfaces of the single pair of the separated pulleys 21 are respectively in intermittent contact with the side walls of the left inner cavity and the right inner cavity of the tubular guide rail 9 and are limited, so that the scooter can be prevented from being stuck due to excessive deviation and safety hazards are reduced, the separation structure of each pair of the pulleys 21 is equivalent to the fact that backup pulleys 21 exist at any time, and derailment of the scooter is prevented to the maximum extent. The device can release the braking effect on the pulley 21 through the cam reset seat after the scooter brakes, so that the pulley 21 continuously slides and slides out of the opening at the section of the tail end of the tubular guide rail 9, and the scooter is pulled out for recycling.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents.

In the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "center", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

Where the words "first", "second", etc. are used in this patent to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and the words are not intended to have a special meaning.

Claims (10)

1. A grass sliding device is characterized by comprising a guide rail assembly and a sliding vehicle matched with the guide rail assembly in a sliding and guiding mode, wherein the guide rail assembly comprises a tubular guide rail with an opening at the upper part, the sliding vehicle comprises a vehicle body and a vehicle frame which are fixedly connected, and pulleys are arranged at the bottom of the vehicle frame and are positioned in the tubular guide rail.

2. The grass-skiing device as claimed in claim 1, wherein the lower part of the frame is provided with an ear plate group, the bottom of the ear plate is rotatably connected with pulleys through pulley shafts, each pulley comprises a left wheel body and a right wheel body which are coaxially arranged, and the pulleys roll in the tubular guide rail.

3. A grass-sliding apparatus as claimed in claim 1, characterized in that the width of the tubular rail opening is smaller than the width of the pulley wheel.

4. The grass sliding device according to claim 1, wherein a safe departure mechanism is arranged at the starting end of the tubular guide rail, the safe departure mechanism comprises a pedal fixing frame arranged outside the tubular guide rail, a pedal hinged with the pedal fixing frame and a blocking shaft connected with the pedal, a horizontal guide shaft sleeve is arranged on the tubular guide rail at the position corresponding to the pedal fixing frame, the blocking shaft penetrates through the guide shaft sleeve and then extends into the inner cavity of the tubular guide rail, the pedal is a folded plate with an obtuse angle, the folded position of the pedal is hinged with the pedal fixing frame, a long hole is arranged at the upper end of the pedal, one end of the blocking shaft is connected with the top of the pedal through a pin shaft and can slide in the long hole, and a tension spring is arranged between the pedal fixing frame and the pedal.

5. The grass sliding device according to claim 1, wherein a brake mechanism is arranged at the end of the tubular guide rail, the brake mechanism comprises a first angle steel group and a second angle steel group from front to back, the first angle steel group and the second angle steel group are arranged on the tops of the tubular guide rails on two sides, a brake block which is in sliding friction with the pulley is arranged on the inner side of the top surfaces of the angle steels, the first angle steel group and the second angle steel group are connected with the tubular guide rail through a fixing frame, and the fixing frame is a U-shaped frame sleeved on the bottom of the tubular guide rail.

6. The grass skating device of claim 5, wherein the second angle iron group is connected with the tubular rail through a fixing frame, an elongated hole is formed in the outer side surface of the second angle iron group, the second angle iron group is connected in the elongated hole through a fixing bolt, and the front end of the second angle iron group is lower than the rear end.

7. The grass sliding device according to claim 6, wherein the first angle steel set is fixedly connected with the tubular guide rail through a connecting mechanism of the tubular guide rail, the connecting mechanism comprises a hinged seat positioned at the rear end of the first angle steel set and a tension spring seat positioned in the middle of the first angle steel set, the front end of the first angle steel set is provided with a cam resetting seat, the hinged seat is hinged with the rear end of the first angle steel set, the tension spring seat comprises a lower spring hook fixed with the tubular guide rail, an upper spring hook fixed with the top of the first angle steel set and a tension spring connected between the lower spring hook and the upper spring hook, the front end of the first angle steel set inclines downwards with the hinged seat as a fulcrum under the action of the tension spring, the tail end of the tubular guide rail is hinged with a hand lever, a supporting block is arranged on the first angle steel set corresponding to the cam resetting seat, the cam resetting seat comprises a cam, and the bottom surface of the supporting block is pressed against the top, the bottom of the cam is connected with a hand lever through a crank, and a flexible shaft is arranged between the hand lever and the crank.

8. The grass sliding device according to claim 1, wherein a guide seat is arranged outside the first angle steel group, the guide seat is arranged outside the fixed frame and forms a guide groove with the fixed frame, and the first angle steel group slides in the guide groove.

9. The grass-sliding device according to claim 8, characterized in that the openings at the cross section of the delivery end and the tail end of the tubular rail are in an open state.

10. The grass skating device of claim 1, wherein the body of the vehicle body is provided with an abdominal safety belt, side guards are provided at front and rear portions of the body, respectively, the side guards are provided at both left and right sides, and the safety belt is provided with a safety belt buckle.

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