CN205022559U - Foldable chock of parking - Google Patents

Abstract

The utility model provides a foldable chock of parking, foldable chock of parking includes an upper shaft, it has two ahead strips and two back strips to go up epaxial rotationally hinging, rotationally be connected with a preceding briquetting between the lower extreme of two ahead strips, behind two between the lower extreme of strip one fixedly connected with the bottom plate, preceding briquetting with it connects through an underframe detachably the bottom plate. The utility model provides an above -mentioned foldable chock of parking's structural design is equitable, and light in weight is collapsible, and folding back is small, and portable is that essential equipment is safeguarded to sociable aircraft.

Description

Folding parking wheel chock

Technical Field

The utility model relates to a can be used to the wheel fender that the aircraft was parked and was used, especially a foldable wheel fender that parks.

Background

The wheel block used when the airplane is parked is common ground safety equipment, and when the airplane is parked, passes a station or is in a post-aviation state for a long time, the wheel block is usually used for blocking the tires of the airplane from moving, so that aviation ground accidents are avoided. Old-fashioned chock usually makes into wedge cubic with wood, rubber and other materials, and simple structure but the material consumption is big, and is not convenient for carry and settle at random.

To the above-mentioned defect of old-fashioned fender, CN1663854A discloses a convenient fender for aircraft, and this convenient fender includes the support, and the articulated adjustable fender in the front portion of support, adjustable fender are articulated with the support in the lower part, and the fixed spout in support upper portion sets up the slider in the spout, but adjustable fender's upper portion overlap joint is on the slider, and the articulated crank in rear portion of support, articulate rotation can drive the slider and slide. The wheel chock in the prior art adopts a large number of movable parts such as sliding blocks and springs, is complex in structure, high in maintenance cost and difficult to apply to high-reliability safety demand occasions such as airplanes.

CN101254782A discloses an automobile wheel chock for automobile tire, which comprises a cushion plate, a support plate, and a connecting plate for connecting the cushion plate and the support plate. In the prior art, a triangular foldable mechanism consisting of a base plate, a support plate and the ground is adopted to limit the sliding of an automobile tire. Although the folding structure of the wheel chock is simple, when the adopted plate-shaped structure is applied to heavy equipment such as an airplane, the required strength can be achieved only by means of very large structural weight, and the round pin and positioning groove structure adopted for keeping the support plate and the base plate connected with each other is lack of self-locking when being impacted, so that the wheel chock is easy to fall off to cause safety accidents.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a foldable wheel chock of parking to reduce or avoid the aforementioned problem.

For solving the technical problem, the utility model provides a foldable wheel fender of parking, foldable wheel fender of parking includes an upper shaft, rotationally articulated have two preceding strakes and two back strakes on the upper shaft, rotationally be connected with a preceding briquetting between the lower extreme of two preceding strakes, bottom plate is being fixedly connected with one between the lower extreme of two back strakes, preceding briquetting with the bottom plate is being connected through a underframe detachably.

Preferably, the bottom frame is bent into a U-shaped structure by a metal rod, and two ends of the U-shaped structure are fixedly connected with the front pressing block.

Preferably, hooks for hooking the U-shaped bottom of the bottom frame are symmetrically arranged at the lower ends of the two back edge strips.

Preferably, the hook is formed in a hook shape opened upward, and a flange is formed at an upper portion of the hook.

Preferably, the upper ends of the two back edge strips are symmetrically provided with grooves for accommodating the U-shaped bottom of the bottom frame.

Preferably, the outermost width of the bottom frame is smaller than the innermost widths of the two front edge strips.

Preferably, the width of the base plate is greater than the distance between the two front edge strips.

Preferably, the bottom of the front pressing block is provided with an anti-slip groove.

Preferably, the end of the bottom plate is provided with a tooth-shaped structure.

Preferably, the middle of the bottom of the front pressing block is provided with a lightening groove.

The utility model provides an above-mentioned foldable parking wheel fender's structural design is reasonable, light in weight, and is collapsible, folding back is small, portable is the essential equipment of outfield's aircraft maintenance.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,

FIG. 1 is a schematic view showing a usage state of a foldable parking wheel chock according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a foldable parking wheel block according to an embodiment of the present invention;

FIG. 3 is a schematic view of a foldable parking wheel stop according to an embodiment of the present invention in a partially folded state;

FIG. 4 is a schematic view of the folding parking wheel chock of FIG. 3 in a fully folded state;

FIG. 5 is a schematic rear view of the folding parking wheel chock of FIG. 4.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.

Fig. 1 is a schematic view showing a usage state of a foldable parking wheel chock according to an embodiment of the present invention, in which the foldable parking wheel chock 1 is mainly used for braking the wheel 2 when the airplane is parked, so as to prevent the wheel 2 from sliding on the ground.

Fig. 2 shows a schematic structural diagram of a foldable parking wheel chock according to an embodiment of the present invention, as shown in the figure, the foldable parking wheel chock 1 of the present invention is a triangular frame structure in an expanded working state, and is in a planar state after being folded (see fig. 4 and 5).

Specifically, the folding parking wheel stop 1 comprises an upper shaft 11, two front side strips 12 and two rear side strips 13 are rotatably hinged on the upper shaft 11, a front pressing block 14 is rotatably connected between the lower ends (the ends far away from the upper shaft 11) of the two front side strips 12, a bottom plate 15 is fixedly connected between the lower ends (the ends far away from the upper shaft 11) of the two rear side strips 13, and the front pressing block 14 and the bottom plate 15 are detachably connected through a bottom frame 16. Further, the bottom frame 16 is bent from a metal rod into a U-shaped structure, and two ends of the U-shaped structure are fixedly connected with the front pressing block 14, for example, the two are fixedly connected into a whole by welding. In one embodiment, the two rear edge strips 13 and the bottom attachment plate 15 are cast or welded together as a unitary structure.

In addition, hooks 131 hooking the U-shaped bottom of the bottom frame 16 (opposite to the two ends of the bottom frame 16) are symmetrically provided at the lower ends of the two back edge bars 13, and in fig. 2, the hooks 131 are in the shape of an upwardly open hook, and a flange 132 is further formed at the upper portion of the hooks 131. In the working state, the hook-shaped structure with the upward opening can ensure that the bottom frame 16 is kept in the hook 131 through gravity, and when the bottom frame 16 is impacted, the flange 132 can prevent the bottom frame 16 from being separated from the hook 131 upwards, so that a self-locking structure is formed, the structure is firm and reliable, and the falling-off is not easy to occur, and safety accidents are not caused.

The folding process of the foldable parking wheel block of the present invention will be further described with reference to fig. 3-5. Fig. 3 is a schematic structural view of a foldable parking wheel block according to an embodiment of the present invention in a partially folded state; FIG. 4 is a schematic view of the folding parking wheel chock of FIG. 3 in a fully folded state; FIG. 5 is a schematic rear view of the folding parking wheel chock of FIG. 4.

As shown in fig. 2-5, when the foldable parking wheel chock of the present invention is not used, it can be folded to be taken away or transported randomly for maintenance of the outfield airplane. The folding process is carried out by slightly pressing the front and rear edge strips 12 and 13 toward the center, lifting the U-shaped bottom of the base frame 16 up from the hook 131 to the flange 132 by hand or by a tool, and then separating the front and rear edge strips 12 and 13 outward to separate the base frame 16 from the rear edge strip 13. The base frame 16 is then lifted upwardly and the front and rear edge strips 12, 13 are squeezed therebetween, so that the folding from the operating position of figure 2 to the partially folded position of figure 3 is achieved.

Further, in an embodiment, the utility model discloses a foldable parking wheel fender's two back strake 13's upper end (the one end that is close to upper shaft 11) still symmetry is provided with the recess 133 that holds the U-shaped bottom of underframe 16 for make underframe 16 whole can contract into the thickness scope of two preceding strakes 12 as far as possible at fold condition, with the volume after further reducing folding, so that carry.

When the utility model discloses a foldable parking wheel fender is after folding completely, has formed the state shown in fig. 4-5 promptly, and underframe 16 has deflected the state that flushes with two preceding strake 12 completely, and whole structure is the plane state, and of course, under this state, underframe 16's the most outside width is less than the most inboard width of two preceding strakes 12 at best, just so can form the fold condition that the volume is minimum. For the folding positioning, in one embodiment, the width of the bottom landing panel 15 is preferably greater than the distance between the two front side bars 12, so that the folded bottom landing panel 15 can be in abutting contact with the two front side bars 12 and cannot rotate, thereby defining the final folding position.

In another embodiment, in order to increase the ground friction of the wheel chock, as shown in the figure, the bottom of the front pressing block 14 is provided with an anti-slip groove 141, and the end of the bottom plate 15 is also provided with a toothed structure to facilitate the grip and the fixation, and the weight of the structure can be reduced.

Further, as shown in fig. 5, a lightening groove 142 is further provided in the middle of the bottom of the front pressing block 14, so that on one hand, the structural weight can be lightened, and on the other hand, the contact area between the anti-slip groove 141 and the ground can be reduced, which is beneficial to firmly gripping the ground.

To sum up, the utility model provides an above-mentioned foldable parking wheel fender's structural design is reasonable, light in weight, collapsible, folding back is small, portable is the essential equipment of outfield aircraft maintenance.

It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.

Claims (10)

1. The foldable parking wheel stop is characterized by comprising an upper shaft, wherein two front edge strips and two rear edge strips are rotatably hinged to the upper shaft, a front pressing block is rotatably connected between the lower ends of the two front edge strips, a bottom plate is fixedly connected between the lower ends of the two rear edge strips, and the front pressing block is detachably connected with the bottom plate through a bottom frame.

2. The folding parking wheel stop of claim 1, wherein the bottom frame is bent from a metal bar into a U-shaped configuration, and wherein two ends of the U-shaped configuration are fixedly connected to the front pressing piece.

3. The folding parking wheel of claim 2, wherein the lower ends of the two back bars are symmetrically provided with hooks for hooking the U-shaped bottom of the bottom frame.

4. The folding parking wheel of claim 3, wherein said hook is in the shape of an upwardly open hook having a flange formed on the upper portion thereof.

5. The folding parking wheel of claim 2, wherein the upper ends of the two rear legs are symmetrically provided with grooves for receiving the U-shaped bottom of the bottom frame.

6. The folding parking wheel of any of claims 1-5, wherein the bottom frame has an outermost width that is less than an innermost width of the two front side bars.

7. The folding parking wheel of claims 1-5, wherein the width of said base plate is greater than the distance between said two front side bars.

8. The folding parking wheel stop of any of claims 1 to 5, wherein the bottom of the front press piece is provided with a non-slip groove.

9. The folding parking wheel stop of any of claims 1-5, wherein the distal end of the bottom plate is provided as a tooth-like structure.

10. The folding parking wheel stop of any of claims 1-5, wherein a relief groove is provided in the middle of the bottom of the front press piece.