CN219790337U - Speed reducing structure in spare tire support assembly - Google Patents

Abstract

The utility model relates to the technical field of spare tire supports and discloses a speed reducing structure in a spare tire support assembly, which solves the problems in the prior art and comprises a fixed plate, wherein a connecting plate is arranged at the bottom of the fixed plate, a notch is formed in the top of the connecting plate, a gear is fixedly connected to the bottom of the fixed plate, a tooth trace is arranged on the circumferential surface of the gear, the tooth trace is arranged on the inner wall of the notch, the gear can be inserted into the notch, the tooth trace on the circumferential surface of the gear is meshed with the tooth trace on the inner wall of the notch, a first connecting rod is fixedly connected to the bottom of the connecting plate, a threaded hole is formed in the bottom of the first connecting rod, a threaded rod is arranged in the inner cavity of the threaded hole, and a second connecting rod is fixedly connected to the bottom of the threaded rod.

Description

Speed reducing structure in spare tire support assembly

Technical Field

The utility model belongs to the technical field of spare tire brackets, and particularly relates to a speed reduction structure in a spare tire bracket assembly.

Background

The spare tire is mainly used for temporarily replacing a normal tire when the normal tire is damaged accidentally, in the process of replacing the tire, the normal running tire is firstly disassembled through a vehicle-mounted tool, then the spare tire is lifted from the bottom of a vehicle, tire replacement is carried out, and finally the replaced tire is directly returned to be fixed on a spare tire bracket.

After the spare tire is installed, rebound of the speed reducing structure may occur, so that the tire may be loosened after the installation is completed, unnecessary accidents are caused, safety is low, and therefore, the speed reducing structure in the spare tire support assembly is provided.

Disclosure of Invention

In order to solve the problems that after the spare tire is installed, rebound can occur to a speed reducing structure, so that the tire can be loosened after the installation is completed, unnecessary accidents are caused, and the safety is low, the utility model provides the following technical scheme: the utility model provides a speed reducing structure in spare tyre support assembly, includes the fixed plate, the bottom of fixed plate is equipped with the connecting plate, the notch has been seted up at the top of connecting plate, the bottom rigid coupling of fixed plate has the gear, the circumference surface of gear is equipped with the insection, be equipped with the insection on the inner wall of notch, the gear can peg graft in the notch, the insection of gear circumference surface meshes with the insection of notch inner wall, the bottom rigid coupling of connecting plate has the head rod, the screw hole has been seted up to the bottom of head rod, the inner chamber of screw hole is equipped with the threaded rod, the bottom rigid coupling of threaded rod has the second connecting rod, the through-hole has been seted up to one side at fixed plate top, the inner chamber of through-hole is equipped with the locating part.

Preferably, the limiting piece comprises a limiting rod, a limiting plate and a spring, wherein the limiting rod is inserted in the through hole in a sliding mode, the limiting plate is fixedly sleeved on the circumferential surface of the limiting rod, the bottom of the spring is fixedly connected to the top of the limiting plate, and the bottom of the limiting rod is located on the outer side of the bottom of the fixing plate.

Preferably, the number of the springs is two, the two springs are respectively positioned at two sides of the top of the limiting plate, a chute is formed in one side of the inner cavity of the fixing plate, which is positioned at the through hole, and the top of the springs is fixedly connected to the top of the inner wall of the chute.

Preferably, the circumferential surface of the threaded rod is provided with external threads, the inner wall of the threaded hole is provided with internal threads, and the external threads of the circumferential surface of the threaded rod are meshed with the internal threads of the inner wall of the threaded hole.

Preferably, the bottom of the second connecting rod is also provided with a threaded hole with the same threaded hole as the bottom of the first connecting rod.

Preferably, the lower half parts of the circumferential surfaces of the second connecting rod and the first connecting rod are provided with threads.

Compared with the prior art, the utility model has the beneficial effects that:

through running through the spare tyre with head rod and second connecting rod for the second connecting rod passes through the screw thread grafting of circumference surface in the screw thread inslot that needs fixed spare tyre, then peg graft the gear of fixed plate bottom in the notch at connecting plate top, then upwards stimulate the gag lever post, the gag lever post then can drive the limiting plate and slide downwards in the spout, then can extrude the spring when gliding, then rotate the fixed plate, the fixed plate then can drive the connecting plate through the gear and rotate, the connecting plate then can drive head rod and second connecting rod and rotate, the connecting plate then can downwardly extrusion spare tyre, thereby realize the fixed to the spare tyre, then loosen the pulling gag lever post, the spring then can rebound the limiting plate downwards, the limiting plate then can drive the gag lever post and downwardly slide, the gag lever post downwardly slide then can peg graft in spare tyre wheel hub's vacancy, thereby realize spacing fixed to the connecting plate, and then realize spacing fixed to the spare tyre, realized can prevent that the fixed plate from springing back, and then reached after fixed stable, prevent to appear not hard up and cause unexpected accident, improve the effect of whole device security.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic elevational view of the entire structure of the present utility model;

FIG. 2 is a schematic view of the overall front view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic top view of the connection plate and gear of the present utility model;

in the figure: 1. a fixing plate; 2. a gear; 3. a connecting plate; 4. a first connecting rod; 5. a through hole; 6. a limit rod; 7. a limiting plate; 8. a spring; 9. a chute; 10. a second connecting rod; 11. a threaded rod; 12. and (3) a threaded hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is given by figures 1-4, the utility model comprises a fixed plate 1, the bottom of the fixed plate 1 is provided with a connecting plate 3, the top of the connecting plate 3 is provided with a notch, the bottom of the fixed plate 1 is fixedly connected with a gear 2, the circumferential surface of the gear 2 is provided with insections, the inner wall of the notch is provided with insections, the gear 2 can be inserted in the notch, the insections on the circumferential surface of the gear 2 are meshed with insections on the inner wall of the notch, the bottom of the connecting plate 3 is fixedly connected with a first connecting rod 4, the bottom of the first connecting rod 4 is provided with a threaded hole 12, the inner cavity of the threaded hole 12 is provided with a threaded rod 11, the bottom of the threaded rod 11 is fixedly connected with a second connecting rod 10, one side of the top of the fixed plate 1 is provided with a through hole 5, and the inner cavity of the through hole 5 is provided with a limiting piece.

In addition, the locating part includes gag lever post 6, limiting plate 7 and spring 8, and gag lever post 6 slides and peg graft in through-hole 5, and limiting plate 7 is fixed to be cup jointed at the circumference surface of gag lever post 6, and the bottom rigid coupling of spring 8 is at the top of limiting plate 7, and the bottom of gag lever post 6 is located the outside of fixed plate 1 bottom, and the locating part is vertical, can make after fixed firm to connecting plate 3, prevents that connecting plate 3 from springing back from appearing to prevent that the spare tyre from appearing becoming flexible, improve the effect of spare tyre stability.

And, the quantity of spring 8 is two, and two springs 8 are located the both sides at limiting plate 7 top respectively, and spout 9 has been seted up to one side that fixed plate 1 inner chamber is located through-hole 5, and the top rigid coupling of spring 8 is at the top of spout 9 inner wall, and two spring 8's setting can reach limiting plate 7 more stable to realize that gag lever post 6 is more stable when gliding.

And, the circumference surface of threaded rod 11 is equipped with the external screw thread, and the inner wall of screw hole 12 is equipped with the internal screw thread, and the external screw thread on threaded rod 11 circumference surface meshes with the internal screw thread of screw hole 12 inner wall, and the setting of threaded rod 11 and screw hole 12 can reach the convenience and connect second connecting rod 10.

In addition, the bottom of the second connecting rod 10 is also provided with the same threaded hole 12 as the threaded hole 12 at the bottom of the first connecting rod 4, so that the second connecting rod 10 can be spliced by the arrangement, and the spare tires with different thicknesses can be used.

It should be noted that, the lower half portions of the circumferential surfaces of the second connecting rod 10 and the first connecting rod 4 are provided with threads, and the threads are arranged to facilitate the connection and fixation, thereby improving the operability of the whole device.

Working principle: during operation, firstly, the spare tire is placed stably, then the first connecting rod 4 and the second connecting rod 10 penetrate through the spare tire, the second connecting rod 10 is inserted into a threaded groove of the spare tire to be fixed through threads on the circumferential surface, then the gear 2 at the bottom of the fixing plate 1 is inserted into a notch at the top of the connecting plate 3, then the limiting rod 6 is pulled upwards, the limiting rod 6 can drive the limiting plate 7 to slide downwards in the sliding groove 9, the spring 8 can be extruded while sliding, then the fixing plate 1 is rotated, the fixing plate 1 can drive the connecting plate 3 to rotate through the gear 2, the connecting plate 3 can drive the first connecting rod 4 and the second connecting rod 10 to rotate, the connecting plate 3 can downwards extrude the spare tire, the spare tire is fixed, then the limiting rod 6 is pulled loose, the spring 8 can downwards rebound the limiting plate 7, the limiting plate 7 can drive the limiting rod 6 to slide downwards, the limiting rod 6 can be inserted into a gap of a spare tire hub, and the limiting fixation of the connecting plate 3 is realized.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a speed reduction structure in spare tyre support assembly, includes fixed plate (1), its characterized in that: the bottom of fixed plate (1) is equipped with connecting plate (3), the notch has been seted up at the top of connecting plate (3), the bottom rigid coupling of fixed plate (1) has gear (2), the circumference surface of gear (2) is equipped with the insection, be equipped with the insection on the inner wall of notch, gear (2) can peg graft in the notch, insection and the insection of notch inner wall of gear (2) circumference surface mesh mutually, the bottom rigid coupling of connecting plate (3) has head rod (4), screw hole (12) have been seted up to the bottom of head rod (4), the inner chamber of screw hole (12) is equipped with threaded rod (11), the bottom rigid coupling of threaded rod (11) has second connecting rod (10), through-hole (5) have been seted up to one side at fixed plate (1) top, the inner chamber of through-hole (5) is equipped with the locating part.

2. The deceleration structure in a spare tire carrier assembly as in claim 1, wherein: the limiting piece comprises a limiting rod (6), a limiting plate (7) and a spring (8), wherein the limiting rod (6) is inserted in the through hole (5) in a sliding mode, the limiting plate (7) is fixedly sleeved on the circumferential surface of the limiting rod (6), the bottom of the spring (8) is fixedly connected to the top of the limiting plate (7), and the bottom of the limiting rod (6) is located on the outer side of the bottom of the fixed plate (1).

3. The deceleration structure in a spare tire carrier assembly as in claim 2, wherein: the number of the springs (8) is two, the two springs (8) are respectively positioned at two sides of the top of the limiting plate (7), a chute (9) is formed in one side of the inner cavity of the fixed plate (1) positioned at the through hole (5), and the top of the springs (8) is fixedly connected to the top of the inner wall of the chute (9).

4. A speed reducing structure in a spare tire carrier assembly according to claim 3, wherein: the circumference surface of threaded rod (11) is equipped with the external screw thread, the inner wall of screw hole (12) is equipped with the internal screw thread, the external screw thread on threaded rod (11) circumference surface meshes with the internal screw thread of screw hole (12) inner wall.

5. The deceleration structure in a spare tire carrier assembly as in claim 4, wherein: the bottom of the second connecting rod (10) is also provided with a threaded hole (12) which is the same as the threaded hole (12) at the bottom of the first connecting rod (4).

6. The deceleration structure in a spare tire carrier assembly as in claim 5, wherein: the lower half parts of the circumferential surfaces of the second connecting rod (10) and the first connecting rod (4) are respectively provided with threads.