Locking mechanism for non-pneumatic tire and tire

Abstract

The utility model discloses a locking mechanism for a non-pneumatic tire and a tire, and the locking mechanism comprises a fixed bottom plate which is fixedly arranged on an inner rim or an outer rim in the non-pneumatic tire; the pair of fixing supports is fixedly installed on the fixing bottom plate, and the outer ends of the pair of fixing supports are located on the two sides of the brake plate between the inner rim and the outer rim; the pistons are arranged on the fixing supports; the locking friction plate is arranged at the driving end of the piston; the limiting baffles are arranged on the brake plates on the two sides of each fixing support and abut against the fixing supports after rotation deviation occurs between the inner rim and the outer rim so as to limit the deflection angle between the inner rim and the outer rim. Compared with the prior art, the non-pneumatic tire braking device has the advantages that braking of a non-pneumatic tire is achieved through bidirectional movement of the locking friction plate towards the braking plate, the corresponding limiting baffle is arranged on the side portion of the fixing support to relieve rotation deviation impact force between the inner rim and the outer rim through abutting, and then impact on a shock absorber and a hinge is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of tires, and in particular relates to a locking mechanism for a non-pneumatic tire and the tire. Background Art

[0002] A non-pneumatic tire refers to a wheel hub composed of an inner and outer rim, with corresponding hinges and shock absorbers added between the two to replace the shock-absorbing function of a pneumatic tire.

[0003] Like normal pneumatic tires, non-pneumatic tires also need to be equipped with corresponding brake disc structures to ensure their braking performance. The difference is that pneumatic tires use an integral hub structure, while non-pneumatic tires use a separate hub structure consisting of inner and outer rims. In other words, due to the structural characteristics, non-pneumatic tires will have a certain amount of rotational offset and vertical sinking of the inner and outer rims. These structures will bring certain impacts to the shock absorbers and hinges responsible for shock absorption and linkage, thereby causing damage to vehicle structural parts. Utility Model Content

[0004] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0005] The utility model provides a locking mechanism and a tire for a non-pneumatic tire, which match the corresponding braking structure in combination with the structural characteristics of the non-pneumatic tire, and can also limit the rotational offset between the inner and outer rims to protect the shock absorber and hinge in the non-pneumatic tire.

[0006] The utility model discloses a locking mechanism for a non-pneumatic tire, comprising:

[0007] A fixed base plate for fixed installation on the inner rim or outer rim of a non-pneumatic tire;

[0008] A pair of fixed brackets, fixedly mounted on the fixed bottom plate, and outer ends of the pair of fixed brackets are located on both sides of the brake plate between the inner rim and the outer rim;

[0009] A piston, disposed on each of the fixed brackets;

[0010] A locking friction plate, which is disposed at the driving end of the piston and moves toward the brake plate through the driving end;

[0011] The limit baffle is arranged on the brake plates on both sides of each of the fixed brackets, and abuts against the fixed brackets after rotation deviation occurs between the inner rim and the outer rim to limit the deflection angle between the inner rim and the outer rim.

[0012] In some embodiments, the abutting end face between the limiting baffle and the fixed bracket is in the shape of a broken line end face, and a buffer pad is provided at the abutting end face.

[0013] In some embodiments, it further includes:

[0014] A pressing piece, which is arranged between the inner ends of the pair of fixed brackets at the bottom and is in sliding limit abutment with the locking friction plate.

[0015] In some embodiments, the locking friction plate includes:

[0016] A locking bottom plate, which is connected to the driving end of the piston and is in sliding limit abutment with the pressing piece;

[0017] A backing plate, a heat insulation layer, and a friction layer are sequentially arranged on the inner end face of the locking bottom plate, and none of them abuts against the pressing piece.

[0018] In some embodiments, it further includes:

[0019] A limiting groove and a limiting protrusion, which are in snap-fit and are respectively arranged on the pressing piece and the locking bottom plate.

[0020] In some embodiments, it further includes:

[0021] A fixing pin, which penetrates through the pressing piece and the fixed brackets on both sides of the pressing piece;

[0022] A guiding pin, which penetrates through the locking friction plate and is located between the inner ends of the pair of fixed brackets at the bottom.

[0023] In some embodiments, both the fixing pin and the guiding pin are provided in two and are symmetrically arranged on both sides of the limiting groove.

[0024] In some embodiments, a reinforcing rib plate is provided between the fixed bottom plate and the fixed bracket.

[0025] In some embodiments, it further includes:

[0026] A distance sensor, which is arranged at the inner end of the locking bottom plate.

[0027] A tire, including the locking mechanism for a non-pneumatic tire according to any one of the above embodiments.

[0028] Compared with the prior art, the utility model has the following advantages: Aiming at the structural characteristics of non-pneumatic tires and combining with the brake plate structure it has (i.e., the annular plate between the inner and outer rims, and the annular plate specifically limits the relative amount of radial displacement between the inner and outer rims), a double-symmetrical braking structure is adopted, which not only effectively functions as a brake, but also can effectively limit the impact force of the axial offset between the inner and outer rims and ensure that the inner and outer rims are as much as possible on the same horizontal reference plane under various working conditions. A corresponding limit baffle is arranged on the outer side of the fixed bracket and abuts to relieve the impact force of the rotational deviation between the inner and outer rims, thereby reducing the impact on the shock absorber and hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the utility model and constitute a part of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model.

[0030] Figure 1 is a schematic three-dimensional structure diagram of the utility model.

[0031] Figure 2 is a schematic structure diagram of the pressing plate of the utility model.

[0032] Figure 3 is the front view of the utility model.

[0033] Figure 4 is a schematic structure diagram of the locking friction plate and the distance sensor of the utility model.

[0034] Figure 5 is an exploded schematic three-dimensional structure diagram of the utility model.

[0035] Figure 6 is a schematic structure diagram of the utility model installed on a non-pneumatic tire.

[0036] BRIEF DESCRIPTION OF THE DRAWINGS: Fixed bracket 1; Locking friction plate 2; Pressing plate 3; Distance sensor 4; Fixed pin 5; Guide pin 6; Piston 7; Limit groove 8; Limit baffle 9; Abutting groove 10; Buffer pad 11; Fixed bottom plate 12; Reinforcing rib plate 13; Limit groove 14; Limit protrusion 15; Locking bottom plate 21; Cushion plate 22; Heat insulation layer 23; Friction layer 24. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Based on the embodiments provided by the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0038] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present utility model. For those of ordinary skill in the art, without making creative efforts, the present utility model can also be applied to other similar scenarios based on these drawings. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for those of ordinary skill in the art related to the content disclosed by the present utility model, some design, manufacturing or production changes based on the technical content disclosed by the present utility model are only conventional technical means and should not be understood as the content disclosed by the present utility model being insufficient.

[0039] Referring to "embodiment" in the present utility model means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present utility model. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described in the present utility model can be combined with other embodiments without conflict.

[0040] A locking mechanism for a non-pneumatic tire, comprising:

[0041] A fixed bottom plate 12 for fixedly installing on the inner rim or outer rim of a non-pneumatic tire;

[0042] A pair of fixed brackets 1 fixedly installed on the fixed bottom plate 12, and the outer ends of the pair of fixed brackets 1 are located on both sides of a brake plate between the inner rim and the outer rim;

[0043] A piston 7 provided on each of the fixed brackets 1;

[0044] A locking friction plate 2 provided at the driving end of the piston 7 and moving in the direction of the brake plate through the driving end;

[0045] A limit baffle 9 provided on the brake plate on both sides of each of the fixed brackets 1 and abutted against the fixed bracket 1 after a rotational deviation occurs between the inner rim and the outer rim to limit the deflection angle between the inner rim and the outer rim.

[0046] The specific structure of the non-pneumatic tire is as follows Figure 6 shown, that is, it is composed of an inner rim, an outer tire, and a brake plate provided on the inner wall of the outer rim in this appendix. Similarly, the brake plate can also be provided on the outer wall of the inner rim; at the same time, it also includes corresponding hinge structures and shock absorber structures ( Figure 6 not shown in Figure 6 ). Figure 6

[0047] During the actual working process, the shock absorber is always in normal shock-absorbing reciprocating work and bears most of the impact force. However, when the vehicle is suddenly impacted and brakes suddenly, at this time, a larger acting force will impact the hinge structure, causing damage to its rigid structure. Considering that the vehicle itself needs to be equipped with a corresponding brake module, further, through the setting of the fixing bracket 1 and the limiting baffle 9, part of the impact force is offset to improve the overall safety performance of the vehicle.

[0048] In some embodiments, the abutting end face between the limiting baffle 9 and the fixing bracket 1 is in a broken-line end face shape, and a buffer pad 11 is provided at the abutting end face. Specifically, as Figure 3 shown, the limiting baffle 9 is provided with an abutting groove 10, and the outer side of the fixing bracket 1 is provided with a limiting groove 8. The two have the same structural form and are in an L-shaped structure as shown in the figure, so as to increase the contact area.

[0049] In some embodiments, it further includes:

[0050] A pressing piece 3 is arranged between the inner ends of the pair of fixing brackets 1 and is in sliding limit abutment with the locking friction plate 2.

[0051] The pressing piece 3 is used to limit the movement of the locking friction plate 2 to prevent large displacement changes of the locking friction plate 2 during the impact force process.

[0052] Specifically, the locking friction plate 2 includes:

[0053] A locking bottom plate 21, which is connected to the driving end of the piston 7 and is in sliding limit abutment with the pressing piece 3;

[0054] A cushion plate 22, a heat insulation layer 23, and a friction layer 24 are sequentially arranged on the inner end face of the locking bottom plate 21, and none of them are in abutment with the pressing piece 3.

[0055] The locking bottom plate 21 is a rigid support member for connection and fixation, support and positioning, and as an installation and bearing component of the corresponding structure; the cushion plate 22 plays a role in partial shock absorption and buffering, and the heat insulation layer 23 prevents the heat generated by the friction layer 24 from being transmitted to the cushion plate 22; through the above structure, the safety and stability of braking are ensured.

[0056] In some embodiments, it further includes: ​

[0057] The limiting groove 14 and the limiting protrusion 15 are engaged with each other and are respectively provided on the pressing piece 3 and the locking bottom plate 21. Through the above structure, the stability of the locking friction plate 2 during the transportation process is further improved.

[0058] At the same time, the following can also be provided:

[0059] The fixing pin 5 penetrates through the pressing piece 3 and the fixing brackets 1 on both sides of the pressing piece 3;

[0060] The guiding pin 6 penetrates through the locking friction plate 2 and is located between the inner ends of the pair of fixing brackets 1.

[0061] Specifically, two fixing pins 5 and two guiding pins 6 are provided, and they are symmetrically arranged on both sides of the limiting groove 14.

[0062] The pressing piece 3 is quickly fixedly installed through the fixing pin 5, and the movement of the locking friction plate 2 is guided through the guiding pin 6, and then combined with the aforementioned pressing piece 3 to improve its reliability.

[0063] In some embodiments, a reinforcing rib plate 13 is provided between the fixing bottom plate 12 and the fixing brackets 1.

[0064] In some embodiments, it further includes:

[0065] The distance sensor 4 is provided at the inner end of the locking bottom plate 21. To monitor the distance between the two locking friction plates 2 and the brake plate. This is also the reason why a piston 7 is provided on each fixing bracket 1. Due to different wear amounts, the actual extension amounts of the two pistons 7 can be adjusted according to the situation, so as to always keep the brake plate in the middle position between the two locking friction plates 2 as much as possible, and further play a role in restricting the lateral displacement of the inner and outer rims of the non-pneumatic tire according to the structural characteristics of the non-pneumatic tire.

[0066] A non-pneumatic tire includes a locking mechanism for a non-pneumatic tire according to any one of the above embodiments.

[0067] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A locking mechanism for a non-pneumatic tire, characterized in that, Comprising: A fixed bottom plate, for fixedly mounting on an inner rim or an outer rim in a non-pneumatic tire; A pair of fixed brackets, fixedly mounted on the fixed bottom plate, and the outer ends of the pair of fixed brackets are located on both sides of a brake plate between the inner rim and the outer rim; Pistons, provided on each of the fixed brackets; Locking friction plates, provided at the driving ends of the pistons and moving in the direction of the brake plate through the driving ends; Limit baffles, provided on the brake plates on both sides of each of the fixed brackets, and abutted against the fixed brackets after a rotational deviation occurs between the inner rim and the outer rim, so as to limit the deflection angle between the inner rim and the outer rim.

2. The locking mechanism for a non-pneumatic tire according to claim 1, characterized in that, The abutting end face between the limit baffle and the fixed bracket is in a broken-line end face shape, and a buffer pad is provided at the abutting end face.

3. The locking mechanism for a non-pneumatic tire according to claim 1, characterized in that, Further comprising: A pressing piece, provided between the inner ends of the pair of fixed brackets at the bottom, and slidingly and limit-abutting against the locking friction plate.

4. The locking mechanism for a non-pneumatic tire according to claim 3, characterized in that, The locking friction plate comprises: A locking bottom plate, connected to the driving end of the piston, and slidingly and limit-abutting against the pressing piece; A backing plate, a heat insulation layer, and a friction layer, sequentially arranged on the inner end face of the locking bottom plate, and none of them abuts against the pressing piece.

5. The locking mechanism for a non-pneumatic tire according to claim 4, characterized in that, Further comprising: A limit groove and a limit protrusion, which are engaged with each other and are respectively provided on the pressing piece and the locking bottom plate.

6. The locking mechanism for a non-pneumatic tire according to claim 5, characterized in that, Further comprising: A fixing pin, penetrating through the pressing piece and the fixed brackets on both sides of the pressing piece; A guiding pin, penetrating through the locking friction plate and located between the inner ends of the pair of fixed brackets at the bottom.

7. The locking mechanism for a non-pneumatic tire according to claim 6, characterized in that, Both the fixing pin and the guiding pin are provided in two, and are symmetrically arranged on both sides of the limit groove.

8. The locking mechanism for a non-pneumatic tire according to claim 1, characterized in that, A reinforcing rib plate is provided between the fixed bottom plate and the fixed bracket.

9. The locking mechanism for a non-pneumatic tire according to claim 4, characterized in that, Further comprising: A distance sensor, provided at the inner end of the locking bottom plate.

10. A tire, characterized in that, Comprising a locking mechanism for a non-pneumatic tire according to any one of claims 1-9.

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