CN219341588U - Supporting device for overhauling automobile on soft road surface - Google Patents

Abstract

The utility model discloses a supporting device for overhauling an automobile on a soft road surface, and relates to the technical field of automobile accessories. The utility model comprises an expansion sheet, and the inner pivot column slides relative to the accommodating groove to release the rotation restriction of the accommodating groove to the expansion sheet. According to the utility model, the expansion sheet is unfolded and stored along with the translation and rotation of the expansion disc, the contact range of the base and the ground is enlarged, so that the perpendicularity of the base is ensured to be more safe, and the soft surface at the jacking position can be avoided by using the expansion sheet for the soft road surface, so that the expansion sheet is supported on the hard solid surface of the peripheral ring of the soft surface, the problems that the base is inclined due to instability of the vehicle after the fault vehicle is jacked by the screw jack body during bearing of the expansion sheet, and potential safety hazards exist in maintenance of the fault vehicle are avoided, and the space occupancy rate is reduced and the portability is improved through the storage of the expansion sheet.

Description

Supporting device for overhauling automobile on soft road surface

Technical Field

The utility model belongs to the technical field of automobile accessories, and particularly relates to a supporting device for overhauling an automobile on a soft road surface.

Background

The jack is divided into a mechanical jack, a hydraulic jack and the like, and the principles are different. In principle, the most basic principle on which hydraulic transmission is based is pascal's law, that is, the pressure is uniform throughout the liquid. In a balanced system, the pressure exerted on the smaller piston is thus smaller, while the pressure exerted on the larger piston is also larger, so that the liquid can be kept stationary. Therefore, through the transmission of liquid, different pressures at different ends can be obtained, the purpose of changing can be achieved, the common hydraulic jack of people utilizes the principle to achieve the transmission of force, the screw jack adopts an external handle to stir and pull, the pull claw pushes the ratchet wheel to rotate in a clearance way, the bevel pinion drives the bevel gear wheel to rotate the lifting screw, and therefore the lifting sleeve is lifted or lowered, and the lifting tension function is achieved.

Whatever type of jack, its most important use is with the object propping up, and to on-vehicle jack, the position that the vehicle breaks down is unable artificial accuse, and the use of jack is regard ground as the support, through the flexible of jack to reach the purpose with the vehicle jack-up, but the vehicle is heavier, to the soft road surface, because the vehicle focus changes, the jack has the risk of sinking and tilting on the soft road surface, leads to the maintenance of trouble vehicle to have the potential safety hazard.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides a supporting device for overhauling an automobile on a soft road surface, which aims to overcome the technical problems in the prior art.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a supporting device for overhauling an automobile on a soft road surface, which comprises a screw jack body, wherein a base is fixedly arranged at the bottom of the screw jack body, a storage groove is formed in the base, an inner pivot column is slidably arranged in the storage groove along the middle axis direction, an expansion disc is sleeved on the inner pivot column, the expansion disc and the inner pivot column are rotatably arranged, a plurality of expansion sheets are rotatably arranged on the expansion disc, and the expansion sheets are uniformly distributed in circumference;

after the inner pivot post slides relative to the storage groove to relieve the rotation restriction of the storage groove to the expansion sheet, the expansion disc rotates relative to the inner pivot post so as to drive the expansion sheet to rotate relative to the expansion disc until the expansion sheet corresponds to the limiting groove, and the inner pivot post slides relative to the storage groove in a reverse direction to enable the expansion sheet to be clamped with the limiting groove.

Further, a cross rod is arranged in the middle of one side of the storage groove, the cross rod and the storage groove are coaxially arranged, a cross cap is arranged at the end part of the cross rod, a cross cavity which is matched with the cross cap is formed in the inner pivot column, and the surface of the cross cavity and the inner pivot column are communicated through a cross sliding hole which is matched with the cross rod.

Further, the surface of the inner pivot column is fixedly sleeved with an outer toothed ring;

the expansion disc is provided with a ring tooth socket and an external tooth socket, the ring tooth socket is communicated with the external tooth socket, the rotating shaft of each expansion plate penetrates through the expansion disc and extends into the corresponding external tooth socket, and the rotating shaft of each expansion plate is rotatably installed with the expansion disc;

the rotating shaft of each expansion plate is positioned at one end of the external tooth groove and is fixedly provided with a movable gear, and the movable gear is meshed with the external tooth ring.

Further, a plurality of locking seats corresponding to the expansion sheets are arranged at the edge of the lower surface of the base, and the locking sheets are rotatably arranged on the locking seats.

Further, a plurality of torque grooves are formed in the lower surface of the expansion disc.

The utility model has the following beneficial effects:

1. according to the utility model, the expansion sheet is unfolded and stored along with the translation and rotation of the expansion disc, when the expansion sheet is unfolded, the contact range between the base and the ground is enlarged, so that the perpendicularity of the base is ensured to be more safe, and for a soft road surface, the contact range between the base and the ground is enlarged, the soft surface at the jacking position can be avoided by using the expansion sheet, and the expansion sheet is supported on the hard solid surface of the soft surface circumference, so that the problems that when the expansion sheet bears pressure, the subsidence is generated due to the soft road surface and the screw jack body jacks a fault vehicle, the base is inclined due to the instability of the vehicle, and potential safety hazards exist in the overhaul of the fault vehicle are avoided, and the space occupation rate is reduced by storing the expansion sheet, so that the expansion sheet is convenient to be placed in the vehicle, and the portability is improved.

2. According to the utility model, when the expansion sheet corresponds to the limit groove, the rotation of the expansion disc is stopped, so that the expansion disc and the inner pivot post enter the storage groove again under the action of the sliding fit of the cross cap and the cross cavity and the sliding fit of the cross rod and the cross sliding hole to realize resetting, and meanwhile, the expansion sheet enters the limit groove to limit the rotation of the expansion sheet, so that the phenomenon that a vehicle is deviated due to the occurrence of autorotation in the use process, and the vehicle falls off from the screw jack body is avoided.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings that are needed for the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the expansion tab housing of the present utility model;

FIG. 3 is an expanded view of the expansion sheet of the present utility model;

FIG. 4 is an exploded view of a partial structure of the present utility model;

fig. 5 is a schematic diagram of a matching structure of a movable gear and an external gear ring according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a screw jack body; 2. a base; 3. a storage groove; 4. an inner pivot post; 5. an expansion disc; 6. an expansion sheet; 7. a limit groove; 8. a cross bar; 9. a cross cap; 10. a cross cavity; 11. a cross slide hole; 12. an outer toothed ring; 13. annular tooth grooves; 14. an outer spline; 15. a movable gear; 16. a locking seat; 17. a locking piece; 18. a torque slot.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, based on the embodiments in the utility model, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "open," "upper," "lower," "top," "middle," "inner," and the like indicate an orientation or positional relationship, merely for convenience of description and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

Referring to fig. 1-5, the utility model discloses a supporting device for repairing an automobile on a soft road surface, which comprises a screw jack body 1, wherein a base 2 is fixedly arranged at the bottom of the screw jack body 1, a storage groove 3 is formed in the base 2, an inner pivot column 4 is slidably arranged in the storage groove 3 along the middle axis direction, an expansion disc 5 is sleeved on the inner pivot column 4, the expansion disc 5 and the inner pivot column 4 are rotatably arranged, a plurality of expansion sheets 6 are rotatably arranged on the expansion disc 5, and the expansion sheets 6 are uniformly distributed in circumference;

after the inner pivot post 4 slides relative to the accommodating groove 3 to release the rotation restriction of the accommodating groove 3 to the expansion sheet 6, the expansion disc 5 rotates relative to the inner pivot post 4, so as to drive the expansion sheet 6 to rotate relative to the expansion disc 5 until the expansion sheet 6 corresponds to the limiting groove 7, and the inner pivot post 4 slides reversely relative to the accommodating groove 3 to enable the expansion sheet 6 to be clamped with the limiting groove 7.

When the jack is used, as the expansion disc 5 and the inner pivot post 4 are rotatably installed around the central axis of the jack body 1, the expansion disc 5 and the inner pivot post 4 synchronously move along the central axis of the jack body 1 relative to the storage groove 3 by pulling the expansion disc 5, so that the expansion disc 5 is separated from the storage groove 3, then the expansion disc 5 is rotated, the expansion disc 5 rotates relative to the inner pivot post 4, so that the expansion sheet 6 is driven to rotate on the expansion disc 5, the expansion sheet 6 is unfolded until the expansion sheet 6 corresponds to the limit groove 7 on the base 2, then the expansion disc 5 is pushed to move along the central axis of the jack body 1, the expansion disc 5 and the inner pivot post 4 enter the storage groove 3, and meanwhile, the expansion sheet 6 is clamped with the limit groove 7, so that the release of the expansion sheet 6 is completed.

When the expansion sheet 6 is not expanded, the expansion sheet is contracted on the expansion disc 6, the surface of the expansion sheet is attached to the inner wall of the storage groove 3, the attachment is preferably interference fit, and the clamping connection of the limiting groove 7 and the expansion sheet 6 is also preferably interference fit.

According to the utility model, the expansion sheet 6 is expanded and stored along with the translation and rotation of the expansion disc 5, when the expansion sheet 6 is expanded, the contact range between the base 2 and the ground is enlarged, so that the perpendicularity of the base 2 is ensured to be more safe, and the contact range between the expansion sheet 6 and the ground is enlarged, and the soft surface at the jacking position can be avoided by utilizing the expansion sheet 6, so that the expansion sheet 6 is supported on the hard solid surface of the soft surface circumference, thereby avoiding the problems that when the expansion sheet bears pressure, the ground is soft and sags, and the screw jack body 1 jacks a fault vehicle, the base 2 is inclined due to instability of the vehicle, so that potential safety hazards exist in maintenance of the fault vehicle, and the space occupation rate is reduced by storing the expansion sheet 6, the expansion sheet is convenient to be placed in the vehicle, and portability is improved.

In one embodiment, for the above-mentioned storage slot 3, a cross rod 8 is disposed in the middle of one side of the storage slot 3, the cross rod 8 and the storage slot 3 are coaxially disposed, and a cross cap 9 is disposed at an end of the cross rod 8, the inner pivot post 4 is provided with a cross cavity 10 that is engaged with the cross cap 9, and the surface of the cross cavity 10 and the inner pivot post 4 are communicated through a cross sliding hole 11 that is engaged with the cross rod 8.

Through the sliding fit of the cross cap 9 and the cross cavity 10, the inner pivot column 4 is prevented from falling from the base 2, and the degree of freedom of the inner pivot column 4 is limited by the sliding fit of the cross rod 8 and the cross sliding hole 11, so that the inner pivot column 4 can only move along the central axis of the screw jack body 1.

In one embodiment, for the inner pivot post 4, the surface of the inner pivot post 4 is fixedly sleeved with an outer tooth ring 12;

the expansion disc 5 is provided with annular tooth grooves 13 and outer tooth grooves 14, the annular tooth grooves 13 are communicated with the outer tooth grooves 14, the rotating shafts of the expansion sheets 6 respectively penetrate through the expansion disc 5 and extend into the corresponding outer tooth grooves 14, and the rotating shafts of the expansion sheets 6 are rotatably installed with the expansion disc 5;

a movable gear 15 is fixedly arranged at one end of the rotating shaft of each expansion sheet 6, which is positioned at the outer tooth groove 14, and the movable gear 15 is meshed with the outer tooth ring 12.

The expansion disc 5 and the inner pivot column 4 are separated from the accommodating groove 3 under the action of the sliding fit of the cross cap 9 and the cross cavity 10 and the sliding fit of the cross rod 8 and the cross sliding hole 11, and the expansion disc 5 is in rotating fit with the inner pivot column 4 and the inner pivot column 4 can only move along the central axis of the jack body 1, so when the expansion disc 5 is rotated, the movable gear 15 rolls around the outer toothed ring 12, further the rotation of the movable gear 15 is realized, the movable gear 15 is fixed with the rotating shaft of the expansion sheet 6, so that the expansion sheet 6 rotates along with the rotation of the expansion disc 5, the expansion sheet 6 is gradually unfolded, when the expansion sheet 6 corresponds to the limiting groove 7, the rotation of the expansion disc 5 and the inner pivot column enter the accommodating groove 3 again under the action of the sliding fit of the cross cap 9 and the cross cavity 10 and the sliding fit of the cross rod 8 and the cross sliding hole 11, and the expansion sheet 6 enters the limiting groove 7, and the rotation of the expansion sheet 6 is limited, and the vehicle is prevented from being deflected in the use process, and the vehicle is prevented from falling off the jack body 1 from the jack body due to the self-rotation in the use process;

when resetting, the above operations are sequentially reversed, and the storage of the extension sheet 6 can be completed.

In one embodiment, for the base 2, a plurality of locking seats 16 corresponding to the expansion pieces 6 are provided at the edge of the lower surface of the base 2, the locking seats 16 are rotatably provided with locking pieces 17, and when the expansion pieces 6 are stored in the storage slots 3 along with the expansion tray 5, the locking pieces 17 are attached to the openings on the expansion tray 5 by rotating the locking pieces 17, so as to limit the movement of the inner pivot post 4 and the expansion tray 5.

In one embodiment, for the expansion disc 5, a plurality of torque grooves 18 are formed on the lower surface of the expansion disc 5, and the expansion disc 5 is conveniently pulled and rotated through the torque grooves 18.

According to the technical scheme, the expansion sheet is unfolded and stored along with the translation and rotation of the expansion disc, when the expansion sheet is unfolded, the contact range between the base and the ground is enlarged, so that the perpendicularity of the base is ensured to be more safe, and the contact range between the base and the ground is enlarged for a soft road surface, the soft surface at the jacking position can be avoided by using the expansion sheet, and the expansion sheet is supported on the hard surface of the soft surface circumference, so that the problems that when the expansion sheet bears pressure, subsidence is generated due to the soft road surface and the screw jack body jacks a fault vehicle, the base is inclined due to instability of the vehicle, and potential safety hazards exist in maintenance of the fault vehicle are avoided, and the space occupation rate is reduced by storing the expansion sheet, so that the expansion sheet is convenient to be placed in the vehicle, and portability is improved; 2. according to the utility model, when the expansion sheet corresponds to the limit groove, the rotation of the expansion disc is stopped, so that the expansion disc and the inner pivot post enter the storage groove again under the action of the sliding fit of the cross cap and the cross cavity and the sliding fit of the cross rod and the cross sliding hole to realize resetting, and meanwhile, the expansion sheet enters the limit groove to limit the rotation of the expansion sheet, so that the phenomenon that a vehicle is deviated due to the occurrence of autorotation in the use process, and the vehicle falls off from the screw jack body is avoided.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above disclosed preferred embodiments of the utility model are merely intended to help illustrate the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model.

Claims (5)

1. The utility model provides an automobile overhauls with strutting arrangement in soft road surface, includes screw jack body (1), its characterized in that: the screw jack comprises a screw jack body (1), wherein a base (2) is fixedly arranged at the bottom of the screw jack body (1), a storage groove (3) is formed in the base (2), an inner pivot column (4) is slidably arranged in the storage groove (3) along the axis direction, an expansion disc (5) is sleeved on the inner pivot column (4), the expansion disc (5) and the inner pivot column (4) are rotatably arranged, a plurality of expansion sheets (6) are rotatably arranged on the expansion disc (5), and the expansion sheets (6) are uniformly distributed in circumference;

after the inner pivot column (4) slides relative to the storage groove (3) to relieve the rotation restriction of the storage groove (3) on the expansion sheet (6), the expansion disc (5) rotates relative to the inner pivot column (4) so as to drive the expansion sheet (6) to rotate relative to the expansion disc (5) until the expansion sheet (6) corresponds to the limit groove (7), and the inner pivot column (4) slides reversely relative to the storage groove (3) to enable the expansion sheet (6) to be clamped with the limit groove (7).

2. The supporting device for overhauling an automobile on a soft road surface according to claim 1, wherein a cross rod (8) is arranged in the middle of one side of the storage groove (3), the cross rod (8) and the storage groove (3) are coaxially arranged, a cross cap (9) is arranged at the end part of the cross rod (8), a cross cavity (10) which is matched with the cross cap (9) is formed in the inner pivot column (4), and the surface of the cross cavity (10) and the surface of the inner pivot column (4) are communicated through a cross sliding hole (11) which is matched with the cross rod (8).

3. The supporting device for overhauling an automobile on a soft road surface according to claim 2, wherein the surface of the inner pivot post (4) is fixedly sleeved with an outer tooth ring (12);

the expansion disc (5) is provided with annular tooth grooves (13) and outer tooth grooves (14), the annular tooth grooves (13) are communicated with the outer tooth grooves (14), the rotating shafts of the expansion sheets (6) respectively penetrate through the expansion disc (5) and extend into the corresponding outer tooth grooves (14), and the rotating shafts of the expansion sheets (6) are rotatably mounted with the expansion disc (5);

a movable gear (15) is fixedly arranged at one end of the rotating shaft of each expansion sheet (6) positioned at the outer tooth groove (14), and the movable gear (15) is meshed with the outer tooth ring (12).

4. The supporting device for overhauling an automobile on a soft road surface according to claim 1, wherein a plurality of locking seats (16) corresponding to the expansion sheets (6) are arranged at the edge of the lower surface of the base (2), and the locking seats (16) are rotatably provided with locking sheets (17).

5. The supporting device for repairing an automobile on a soft road surface according to claim 1, wherein the lower surface of the expansion disc (5) is provided with a plurality of torque grooves (18).

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