CN111567982A - Lifting device for snowshoe - Google Patents

Abstract

The utility model provides a step on device of raising of snowshoe, raise the device and include a bracing piece, this bracing piece is the metal pole of the U-shaped of left and right sides bending downwards, is equipped with the heel footboard on the vamp, and the bracing piece can set up on the vamp its characterized in that around the heel footboard tilting ground: the left vamp and the right vamp of the heel pedal are provided with positioning slotted holes for the two ends of the supporting rod to penetrate and raise for positioning, and the two ends of the supporting rod downwards penetrate through the positioning slotted holes to be directly or indirectly connected with a transverse metal plate which is fixed on the shoe frame and is provided with rear teeth in a rotating way. The invention has simple and reasonable structure, firm and stable positioning, improves the strength of the shoe frame, can meet the requirements of portability, safety and skid resistance when walking on the snowfield, is convenient for climbing mountains, and is suitable for being used by people who love snowfield sports.

Description

Lifting device for snowshoe

Technical Field

The invention relates to an outdoor sports article, in particular to a lifting device of a snowshoe.

Background

Snow shoes (Snowshoes), also known as snow paws, bear-palm shoes, snow-treading boards, snow covers, are footwear for walking on snow. The snowboarding shoe can prevent the foot from completely sinking into the snow by distributing the weight of the human body over a larger area. Traditional snowshoe is woven with the raw belt with hardwood as the frame, and the walking is heavier, and easily falls off, and traditional snowshoe comprises four major parts of shoes frame, vamp, shoes tooth and upper of a shoe mostly, often can set up heel pad or heel footboard at the rear portion of vamp for the walking is comfortable, does not raise the device, just difficultly when climbing like this.

It has also been examined that snowboarding shoes with a lifting device have also been developed, such as chinese patent No. 200480003338.7 framework and binding for snowboarding and related systems and methods, which include a riser to assist a person in climbing a mountain, the riser including a lever pivotally mounted on a peripheral component (i.e., a frame) and held in an extended position, the lever depending above a floor, the riser including a riser mount that pivotally holds the lever, the lever being held in an extended position in which the lever can support the heel of a person's boot above the floor so that the lever can be angled relative to the floor when so positioned and riveted to the peripheral component. The snowshoe of this structure does not have the heel pad, only has the riser, can raise the heel, but does not have concrete location structure of raising, and this pole pivoted angular positioning is rotating about 120 forward as in the drawing, the support point of sole is not fallen in heel department this moment to the pole, and the position that leans on forward, can cause the sole fatigue, it is uncomfortable, and the both sides of pole are fixed with peripheral parts, the pole both sides are very wide, only support the heel by the horizontal pole of pole, cause the emergence of slippage easily, and under this kind of state, the pole is the rupture of warping easily. Further improvement in structure is therefore required.

Chinese patent No. 201320724866.8 discloses an alpine snowshoe having a frame with a band-shaped, circumferential and transversely oriented side wall and a covering mask stretched over the frame. The utility model discloses a climbing assists bow (similar device of raising), climbing assists bow can be fixed two and settles with swinging in the support on the lateral wall on the frame, although its sawtooth all is transverse connection on the frame, but climbing assists the locking mechanical system of bow to set up on other sheet metal component supports, and the support is fixed in the frame is inboard again, so cause the support to complicate, be unfavorable for making production, and only sawtooth transverse connection is on the frame, and slightly apparent intensity is not enough, can do further improvement.

Moreover, the two patent frames are made of plates, so that the two patent frames are relatively heavy and inconvenient to carry and use, the raw material cost is high, the frame with the same weight has weak strength and supporting force, the ice and snow breaking capacity of the side wall is not strong enough, and the stability of the frame cannot be adjusted properly by self because the section of the frame is basically unchanged and cannot be changed along with the thickness of an ice and snow layer.

Disclosure of Invention

The invention aims to solve the technical problem of providing a lifting device of a snowshoe, which has simple and reasonable structure, good supporting strength and convenient positioning.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a step on device of raising of snowshoe, raise the device and include a bracing piece, this bracing piece is the metal pole of the U-shaped of left and right sides bending downwards, is equipped with the heel footboard on the vamp, and the bracing piece can set up on the vamp its characterized in that around the heel footboard tilting ground: the left vamp and the right vamp of the heel pedal are provided with positioning slotted holes for the two ends of the supporting rod to penetrate and raise for positioning, and the two ends of the supporting rod downwards penetrate through the positioning slotted holes to be directly or indirectly connected with a transverse metal plate which is fixed on the shoe frame and is provided with rear teeth in a rotating way.

Furthermore, the transverse metal plate is fixed at the lower end of the shoe frame corresponding to the lower part of the heel pedal, and the bent ends at the two sides of the supporting rod downwards penetrate through the positioning slotted holes to be rotatably connected with the connecting plate fixed on the transverse metal plate.

Still further, the connecting plate is the U-shaped metal sheet, and the connecting plate passes through riveting connection, screw connection or welded connection to be fixed in the rear side of horizontal metal sheet, and the left and right sides of connecting plate is equipped with the shaft hole, and the tip of the end of buckling of the left and right sides of bracing piece inwards buckles and forms and be connected and pivoted with the shaft hole cooperation and be connected the minor axis, and the bracing piece passes the shaft hole through the connection minor axis of both sides and is connected with the connecting plate rotation.

Preferably, the heel pedal is of an isosceles trapezoid structure, the positioning groove holes in the left side and the right side of the heel pedal are provided with a front limiting groove opening and a rear limiting groove opening, when the supporting rod falls on the front limiting groove opening, the supporting rod is in a lifting state and forms an included angle with the heel pedal, and when the supporting rod falls on the rear limiting groove opening, the supporting rod is arranged on the vamp and is basically flush with the heel pedal.

Furthermore, the heel pedal is a plastic piece, the heel pedal and the vamp are made into an integral piece, or the heel pedal is fixed on the vamp through riveting connection or screw connection, and a plurality of convex strips convenient for pedaling are formed on the upper end surface of the heel pedal.

Preferably, the rear cross bar of the support bar is a corrugated cross bar.

Still further, shoes frame structure includes shoes frame and afterbody connecting piece, and wherein the shoes frame is the rear end opening, the basic level in middle part, the structure that both ends upwarp that are made for the metal tubular product of triangle-shaped cross-section by the main part cross-section, and afterbody connecting piece fixed connection is in the rear end open position of shoes frame, and the up end of shoes frame is for supplying the installation face of vamp installation, the lower extreme of shoes frame are triangle-shaped point shape basically, and the bottom interval of the triangle-shaped point structure of lower extreme at shoes frame is provided with a plurality of side tooth spare that are used for increasing anti-skidding effect.

Preferably, the tail connecting piece is of a V-shaped structure or a U-shaped structure in an arc transition shape, and is arranged at the opening position of the rear end of the shoe frame in an inserting, screw, riveting or welding mode to form a closed ring shape.

Furthermore, the two ends of the tail connecting piece are convexly provided with inserting parts which are matched and inserted with triangular holes of metal pipes with triangular cross sections at the opening of the shoe frame, the tail connecting piece is fixedly inserted with the rear end of the shoe frame through size matching, and the middle part of the upper end surface of the tail connecting piece is provided with a connecting part which is riveted or screwed with the rear end of the vamp.

Preferably, the cross section of the metal pipe with the triangular cross section is an isosceles triangle or a right triangle, when the cross section is the isosceles triangle, the bottom edge is used as the upper end face of the shoe frame, the top angle is used as the lower end of the shoe frame, the side tooth piece is arranged at the top angle end, when the cross section is the right triangle, one of the right-angle sides is used as the upper end face of the shoe frame, the acute angle of the other right-angle side is used as the lower end of the shoe frame, the right-angle side is used as the inner side face of the shoe frame, and the side tooth piece is arranged on the inner side face.

Furthermore, the bottom of the transverse metal plate is formed with a bottom thorn as a rear tooth, the left side and the right side of the transverse metal plate extend with side flanging, and the side flanging is fixed on the inner wall of the shoe frame through screw connection, riveting connection or welding connection.

And finally, the shoe upper is fixed at the upper end of the shoe frame through riveting connection or screw connection, and the shoe upper adopts a hard plastic bottom plate and a soft plastic panel, or other materials such as a kayak cover and the like.

Compared with the prior art, the invention has the advantages that: the supporting rod capable of being lifted is arranged on the vamp, the supporting rod can be lifted and put down, and the vamp is provided with the positioning groove hole, so that the supporting rod can be quickly positioned in a lifted state, and the positioning groove hole is easy to manufacture; the heel pedal can be integrated with the vamp or is fixedly connected with the vamp through riveting or screws, and the heel pedal is used as a heel pad when walking on flat ground and also used as a positioning frame of the supporting rod when climbing mountains; the shoe frame is made of metal pipes with triangular sections, the weight is light, the strength is good, the upper end face of the shoe frame is a plane, the vamp can be fixed on the upper end face of the shoe frame through rivets, screws or welding, the tooth parts are easy to install and fix on the side faces of the shoe frame, the installation is convenient, firm and stable, the lower end of the shoe frame is a triangular tip, the contact area with the ground is small, the dragging friction force is small, and in ice and snow layers with different hardness, the depth of the shoe frame cutting into the ice and snow layers can be different, so that the self-adjustment of the cutting depth can be realized to a certain extent, and the skiing stability; the horizontal back tooth that sets up in shoe frame bottom, the U-shaped connecting plate is fixed on the tooth of back, has increased the antiskid effect of walking in snowfield, is difficult for tumbling, and the reasonable installation of back tooth and connecting plate can improve the intensity of shoe frame greatly moreover, and firm in connection is stable. The snow sweeper has the advantages of simple and reasonable structure, light weight, convenience in carrying, high strength, firmness and stability in installation, portability, safety and skid resistance when walking on a snow field, and is suitable for people who love sports on the snow field.

Drawings

FIG. 1 is one of perspective views of a snowshoe employing a shoe frame structure according to an embodiment of the present invention;

FIG. 2 is a second perspective view of a snowshoe employing the shoe frame structure of the embodiment of the present invention;

FIG. 3 is an exploded perspective view of a snowshoe employing a shoe frame structure in accordance with an embodiment of the present invention;

FIG. 4 is one of exploded views of an example shoe frame structure;

FIG. 5 is a second exploded view of the shoe frame structure of the embodiment;

FIG. 6 is a perspective view of an embodiment shoe frame;

FIG. 7 is an exploded perspective view of the shoe frame of the embodiment;

FIG. 8 is a cross-sectional view of an example shoe frame;

FIG. 9 is a perspective view of one of the front tooth and upper attachment structures of the embodiments;

FIG. 10 is a second perspective view of the front tooth and upper attachment structure of the embodiment;

FIG. 11 is an exploded perspective view of one of the front tooth and upper attachment structures of the embodiments;

FIG. 12 is a second exploded perspective view of the front tooth and upper attachment structure of the embodiment;

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 4, the snow treading shoe adopting the lifting device comprises a shoe frame 1, a vamp 6, shoe teeth and an upper 5, wherein the vamp 6 is fixed on the upper end surface of the shoe frame 1 through rivets, the vamp 6 adopts a hard plastic bottom plate and a soft plastic panel, the shoe teeth are arranged below the shoe frame 1, the upper 5 is provided with an upper main body, and the upper main body is provided with a heel strap 51, a pull rope 52, a ballbuckle 53 and other parts.

The lifting device comprises a supporting rod 101, the supporting rod 101 is a U-shaped metal rod with the left side and the right side bent downwards, the cross rod at the rear part of the supporting rod 101 is a corrugated cross rod, a heel pedal 7 is arranged on a vamp 6, the supporting rod 101 is arranged on the vamp 1 in a manner of rotating up and down around the heel pedal 7, the shoe teeth comprise side tooth parts 3, front tooth parts 9 and rear tooth parts 8, positioning slotted holes 62 for penetrating and lifting and positioning two ends of the supporting rod 101 are formed in the vamp 6 at the left side and the right side of the heel pedal 7, and two ends of the supporting rod 101 penetrate through the positioning slotted holes 62 downwards and are connected with a transverse metal plate 82 which is transversely fixed on a shoe frame 1 and is provided with rear teeth in a direct or indirect rotating.

The concrete structure is as follows: the heel pedal 7 is a plastic piece and is in an isosceles trapezoid structure, a plurality of convex strips 71 convenient for pedaling are formed on the upper end face of the heel pedal 7, the heel pedal 7 is fixed on the vamp 1 through rivets in a riveting mode, concave faces corresponding to the positioning groove holes 62 are concavely arranged on the left side and the right side of the heel pedal 7, the positioning groove holes 62 are provided with a front limiting groove opening 621 and a rear limiting groove opening 622, when the supporting rod 101 falls on the front limiting groove opening 621, the supporting rod 101 is in a lifting state, an included angle is formed between the supporting rod 101 and the heel pedal 7, and the included angle is not; when the support rod 101 is seated in the rear retaining notch 622, the support rod 101 is disposed on the upper 1 substantially flush with the heel pedal 7. The transverse metal plate 82 of the rear tooth component 8 is transversely fixed at the lower end of the shoe frame 1 corresponding to the lower part of the front end of the heel pedal 7, and the bent ends at the two sides of the support rod 101 downwards pass through the positioning slotted hole 62 to be rotatably connected with the connecting plate 102 fixed on the transverse metal plate 82. The connecting plate 102 is preferably a U-shaped metal plate, a connecting hole is formed in the middle of the connecting plate 102, a corresponding through hole is formed in the middle of the transverse metal plate 82, the connecting plate 102 is fixed to the rear side of the transverse metal plate 82 through rivet connection, screw connection or welding connection, shaft holes are formed in the left side and the right side of the connecting plate 102, end portions of bent ends of the left side and the right side of the supporting rod 101 are bent inwards to form a connecting short shaft which is connected with the shaft holes in a matched mode and rotates, and the supporting rod 101 penetrates through the shaft holes through the connecting short shafts on the.

The shoe frame structure of the embodiment comprises a shoe frame 1 and a tail connecting piece 2, and is characterized in that the shoe frame 1 is a rear end opening 11 made of a metal pipe with a triangular cross section, the middle part of the shoe frame is basically horizontal, and the two ends of the shoe frame are upwards tilted, the metal pipe with the triangular cross section can be made of aluminum alloy, stainless steel or steel materials, the tail connecting piece 2 is fixedly connected to the rear end opening position of the shoe frame 1 to form a closed annular shoe frame, the upper end face of the shoe frame 1 is an installation face 13 for installing the shoe upper 6, the installation face 13 is generally a plane so as to conveniently install the shoe upper 6 and improve the connection strength, the lower end of the shoe frame 1 is in a triangular tip shape, and is characterized in that a plurality of side tooth pieces 3 for increasing the anti-slip effect are installed at intervals at the bottom of the triangular tip structure at the lower end of the.

The head of the shoe frame 1 is bent upwards at an angle of 15-45 degrees, the middle of the shoe frame 1 is basically horizontal, the tail of the shoe frame 1 is bent upwards at an angle of 5-30 degrees, and the width of the head of the shoe frame 1 is larger than that of the tail and gradually shrinks. The tail connecting piece 2 is a V-shaped structure or a U-shaped structure in an arc transition shape, the cross section shape of the tail connecting piece 2 is basically consistent with that of a metal pipe, and the adjacent parts of the tail connecting piece can be in parallel and level transition basically, the tail connecting piece 2 is arranged at the position of a rear end opening 11 of the shoe frame 1 in a plug-in connection, screw connection, rivet connection or welding connection mode, plug-in connection is adopted in the embodiment, so that plug-in parts 21 which are matched and plugged with triangular openings 11 of the metal pipe with the triangular cross section of the shoe frame 1 are convexly arranged at two ends of the tail connecting piece 2, the tail connecting piece 2 is fixedly plugged with the rear end of the shoe frame 2 in a size matching mode, and a connecting part 22 which is riveted with the rear end of the shoe upper surface 6 is arranged. The cross section of the metal pipe with the triangular cross section is preferably an isosceles triangle or a right-angled triangle, and a certain arc transition is arranged at the tip of the angle, so that people are prevented from being injured. In this embodiment, a metal tube having a right-angled triangle cross section is used, as shown in fig. 8, wherein a right-angled side is used as the upper end surface 13 of the shoe frame 1, an acute angle 14 of the other right-angled side is used as the lower end of the shoe frame 1, and the side tooth member 3 is fixed on the inner side of the right-angled side 15 of the acute angle. The side tooth pieces 3 are distributed between the head bending end and the rear bending end of the shoe frame 1, the lower ends of the side tooth pieces 3 are provided with tooth-shaped structures which are tip ends and distributed at intervals, and the side tooth pieces 3 can be fixed on the inner side of the shoe frame 1 in a welding connection, screw connection or riveting connection mode and are connected with the inner side of the shoe frame 1 to form an integral structure. In this embodiment, the side tooth member 3 is divided into a front section first side tooth 30 and a rear section second side tooth 31, the first side tooth 30 and the second side tooth 31 are symmetrically installed on both sides of the shoe frame 1, and the first side tooth 30 and the second side tooth 31 are arranged in tandem on one side of the shoe frame. The vertical right-angle edge of the triangular metal pipe of the shoe frame 1 is provided with a mounting hole 12, so that the side tooth piece 3 can be conveniently riveted on the inner side surface of the shoe frame.

Referring to fig. 9 to 12, the front tooth 9 is transversely disposed between the inner walls of the front portion of the shoe frame 1, the vamp 6 is provided with a hollow portion 61 corresponding to the front tooth 9, the hollow portion 61 is substantially trapezoidal, the corners of the hollow portion are in arc transition, the main body of the front tooth 9 is a metal plate 90, three first front teeth 91 and two second front teeth 92 are respectively bent and pressed at the front and the rear of the metal plate, the first front teeth 91 and the second front teeth 92 are bottom teeth with staggered heights, a transverse local shaft hole 93 is pressed at the middle portion of the metal plate of the front tooth 9, the metal plate of the front tooth 9 is riveted and fixed with the bottom of the front end of the shoe upper 5, a mounting sleeve hole is formed between the metal plate of the front tooth 9 and the bottom of the shoe upper 5, a metal cross bar 4 passes through the mounting sleeve hole and is connected with the shaft hole 15 on the inner wall of the front portion of the shoe frame 1, in order to improve the strength of the shoe frame, the shaft hole 15 is usually opened at the overlapping portion of the side tooth 3 and the shoe frame, the middle of the metal cross bar 4 is sleeved with a shaft sleeve 41, the front tooth part 9 is rotatably connected with the shoe frame 1 through the shaft sleeve 41 and the metal cross bar 4, usually, in order to limit the movement of the front tooth part 9 on the metal cross bar 4, the left end and the right end of the metal cross bar 4 are respectively sleeved with a limit sleeve 42, and each limit sleeve 42 is sleeved between the shaft sleeve 41 and the side surface of the shoe frame 1.

Referring to fig. 2, 4-5, the rear tooth member 8 is transversely fixed between the inner walls of the middle and rear portions of the shoe frame 1, the rear tooth member 8 includes a transverse metal plate 82, bottom spines are formed at the bottom of the transverse metal plate 82, a spur structure is adopted, the height of the bottom spines is basically the same, side flanges 81 extend from the left and right sides of the transverse metal plate 82, mounting through holes are formed in the side flanges 81, and the side flanges 81 are fixed on the inner walls of the shoe frame 1 through connecting members such as rivets or screws. The first side teeth 30 and the second side teeth 31 are front and rear sections which are arranged in bilateral symmetry, wherein the rear section second side teeth 31 and the rear teeth 8 are an integral piece, the lower end of the side flanging 81 of the rear teeth 8 is turned outwards to be aligned with the bottom of the shoe frame 1 in a substantially vertical mode, and side thorns are formed at the bottom. The first side tooth 30 of anterior segment sets up in the anterior left and right sides of shoes frame 1 corresponding with preceding tooth spare 9 positions, and the first side tooth 30 of anterior segment includes the metal sheet, and the upper end of metal sheet is seted up with the corresponding through-hole of mounting hole 12 of shoes frame 1, and the metal sheet lower extreme turns over outwards to be rolled over and aligns with the bottom of shoes frame 1 is basically perpendicular to there is the side tooth bottom the shaping, and the first side tooth 30 of anterior segment passes through the connecting piece like rivet or fix with screw in the side of shoes frame 1. In this way, the side tooth members 3, the front tooth members 9 and the rear tooth members 8 play a role of safety and slip prevention, so that it is not easy to fall down when walking on snow, and the side tooth members 3 improve the installation strength between the shoe frame 1 and the metal cross bar 4, and the rear tooth members 8 improve the strength of the shoe frame 1. Of course, the shoe frame 1 is not limited to a single-stage structure made of metal pipes with triangular cross sections, but the shoe frame 1 may also be a two-stage structure formed by welding a left section and a right section, and the metal cross rod 4 is connected between the left section and the right section of the shoe frame 1 to strengthen the structure.

During installation, install the first side tooth 30 of anterior segment in shoes frame 1 earlier, preceding tooth spare 9 passes through riveting fixed with the front end bottom of upper of a shoe 5, install metal horizontal pole 4 and axle sleeve 41 earlier when fixed, then rotate with shoes frame 1 through the installation trepanning installation and be connected, it is fixed with the grafting of tail connecting piece 2 and shoes frame 1 again, then install back tooth spare 8 on shoes frame, then pass through fix with rivet on shoes frame 1 with vamp 6, install heel footboard 7 on vamp 6 after that, it can to raise device 10.

During the use, place the shoes in on the tread of vamp 6, pack into upper of a shoe 5 internal fixation, just can walk on the snowfield, because shoe frame 1 adopts the metal tubular product of triangle-shaped cross-section to make, light in weight, intensity is good, and little with ground area of contact, drag frictional force for a short time, it is lighter to walk, and make things convenient for various tooth spare to set up fixedly, and it is firm to fix, be difficult to become flexible, again owing to set up side tooth spare 3, preceding tooth spare 9 and back tooth spare 8, make anti-skidding effectual, be difficult for wrestling, it is safer to walk, whole shoe frame intensity is big, be difficult to warp, increase reasonable device of raising, convenient manufacturing, and improve framework intensity, the life of snowshoe is stepped on to the extension.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (12)

1. The utility model provides a step on device of raising of snowshoe, raise the device and include a bracing piece, this bracing piece is the metal pole of the U-shaped of left and right sides bending downwards, is equipped with the heel footboard on the vamp, and the bracing piece can set up on the vamp its characterized in that around the heel footboard tilting ground: the left vamp and the right vamp of the heel pedal are provided with positioning slotted holes for the two ends of the supporting rod to penetrate and raise for positioning, and the two ends of the supporting rod downwards penetrate through the positioning slotted holes to be directly or indirectly connected with a transverse metal plate which is fixed on the shoe frame and is provided with rear teeth in a rotating way.

2. The lift device of claim 1, wherein: the horizontal metal plate is fixed at the lower end of the shoe frame corresponding to the lower part of the heel pedal, and the bent ends at the two sides of the supporting rod downwards penetrate through the positioning slotted holes to be rotatably connected with the connecting plate fixed on the horizontal metal plate.

3. The lift device of claim 2, wherein: the connecting plate is the U-shaped metal sheet, and the connecting plate passes through riveting connection, screw connection or welded connection to be fixed in the rear side of horizontal metal sheet, and the left and right sides of connecting plate is equipped with the shaft hole, and the tip of the end of buckling of the left and right sides of bracing piece inwards buckles to form and is connected and pivoted with the shaft hole cooperation and be connected the minor axis, and the bracing piece passes the shaft hole through the connection minor axis of both sides and realizes rotating with the connecting plate and be connected.

4. The lift device of claim 1, wherein: the heel pedal is of an isosceles trapezoid structure, the positioning groove holes in the left side and the right side of the heel pedal are provided with a front limiting groove opening and a rear limiting groove opening, when the supporting rod falls on the front limiting groove opening, the supporting rod is in a lifting state and forms an included angle with the heel pedal, and when the supporting rod falls on the rear limiting groove opening, the supporting rod is arranged on the vamp and is basically flush with the heel pedal.

5. The lift device of claim 4, wherein: the heel pedal is a plastic piece, the heel pedal and the vamp are made into an integral piece, or the heel pedal is fixed on the vamp through riveting connection or screw connection, and a plurality of convex strips convenient for pedaling are formed on the upper end surface of the heel pedal.

6. The lift device of claim 1, wherein: the rear cross bar of the supporting rod is a corrugated cross bar.

7. The lift device of claim 1, wherein: the shoe frame structure comprises a shoe frame and a tail connecting piece, wherein the shoe frame is of a structure with a triangular section metal pipe made into a rear end opening, a middle horizontal base and two ends upturned, the main section of the shoe frame is provided with a triangular section, the tail connecting piece is fixedly connected to the rear end opening of the shoe frame, the upper end face of the shoe frame is provided with a shoe upper, the shoe upper is mounted on the shoe upper, the lower end of the shoe frame is basically in a triangular tip shape, and a plurality of side tooth pieces used for increasing the anti-skidding effect are arranged at the bottom of the triangular tip structure at the lower end of the shoe.

8. The lift device of claim 7, wherein: the tail connecting piece is of a V-shaped structure or a U-shaped structure in an arc transition shape, and is arranged at the opening position of the rear end of the shoe frame in an inserting, screw, riveting or welding mode to form a closed ring shape.

9. The lift device of claim 8, wherein: the connecting part is fixedly connected with the rear end of the shoe frame in an inserting manner through size matching, and the middle part of the upper end face of the tail connecting part is provided with a connecting part riveted with the rear end of the vamp or connected with a screw.

10. The lift device of claim 9, wherein: its cross-section of metal tubular product of triangle-shaped cross-section is isosceles triangle or right triangle, and when the cross-section was isosceles triangle, the base was as the up end of shoe frame, and the apex angle was as the lower extreme of shoe frame, and side tooth spare sets up on the apex angle is served, and when the cross-section was right triangle, wherein a right angle limit was as the up end of shoe frame, and the acute angle of another right angle limit is as the lower extreme of shoe frame, and this right angle limit is as the medial surface of shoe frame, and side tooth spare sets up on the medial surface of shoe frame.

11. The lift device of claim 1, wherein: the bottom of the transverse metal plate is provided with a bottom tooth serving as a rear tooth, the left side and the right side of the transverse metal plate extend to form side flanges, and the side flanges are fixed on the inner wall of the shoe frame through screw connection, riveting connection or welding connection.

12. The lift device of claim 1, wherein: the vamp is fixed at the upper end of the shoe frame through riveting connection or screw connection, and the vamp is made of a hard plastic bottom plate and a soft plastic panel.

Images