An embedded limiting wheel

Abstract

The utility model discloses an embedded type limiting wheel, aims at solving the problems of inaccurate positioning of the existing embedded type limiting wheel lock ring, short service life of the elastic component, unreliable sealing and easy loss of the mouth cap, and it comprises a wheel body, a hub, a tire, an air inlet and a mouth cap, the hub comprises a rim body, a movable seat ring, double blocking rings and a lock ring, the rim body and the movable seat ring are provided with matched axial guide grooves and guide protrusions to ensure accurate positioning of the lock ring, a sealing ring with an annular clamping groove is arranged in the groove of the rim body and the movable seat ring, the groove wall is provided with an annular anti-falling flange, and the sealing ring is provided with an annular sealing lip outside, the elastic sheet in the positioning groove is detachably connected through a fixing bolt and is provided with an adjusting gasket, the air inlet spring hanging buckle is provided with an anti-falling buckle, the mouth cap is connected through a rubber-coated stainless steel wire rope, and the air inlet is provided with an annular storage groove, the utility model improves the positioning precision of the lock ring, the adaptability and sealing performance of the elastic component, avoids loss of the mouth cap, enhances the stability and durability of the wheel, and reduces the maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of wheel technology, specifically to an embedded limiting wheel. Background Technology

[0002] The combination of tires, rims, and spokes is collectively called a wheel. The wheel is a crucial component of a vehicle, directly determining the stability and safety of the vehicle's movement.

[0003] In the existing technology, the "Embedded Limiting Wheel" with announcement number CN211710544U solves to some extent the problems of cumbersome installation and easy scratching of the wheel hub of traditional wheels by using a detachable and assembleable rim body, movable seat ring, retaining ring and locking ring. However, it still has the following shortcomings in practical applications: First, the lock ring is inserted only through the gap between the wheel rim and the movable seat ring, without an axial guide structure. During assembly, misalignment can easily cause the lock ring to tilt or not be fully inserted, leading to sealing failure or abnormal noise during driving. Second, the elastic sheet is fixed with ordinary stainless steel by welding. Long-term compression and vibration can easily cause elastic fatigue, and the elasticity is not adjustable, making it unable to compensate for component wear or adapt to lock rings of different thicknesses. Third, the sealing ring is made of a single rubber material, which is not resistant to high and low temperatures or aging. It is limited only by the groove and has no anti-loosening structure, making it easy to shift during installation or vibration. At the same time, the single-seal design lacks safety redundancy. Fourth, the connecting chain between the inflation nozzle and the nozzle cap is made of ordinary stainless steel, which is prone to rust and breakage. It also lacks a storage structure, making it easy to shake and generate noise or snag foreign objects during driving.

[0004] In view of the shortcomings of the existing technology, there is an urgent need for an embedded limiting wheel that further optimizes stability, durability and ease of maintenance based on the original detachable structure. Utility Model Content

[0005] The main purpose of this utility model is to provide an embedded limiting wheel to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an embedded limiting wheel, comprising a wheel body and a hub, tire, inflation nozzle and nozzle cap disposed on the wheel body, the hub comprising a rim body, a movable seat ring, a retaining ring and a locking ring, and having two retaining rings, the movable seat ring being fitted onto the rim body, the retaining ring located at one end of the hub being fitted onto the movable seat ring, the retaining ring located at the other end of the hub being fitted onto the rim body, and the locking ring being located between the rim body and the movable seat ring; At least two axial guide grooves are symmetrically formed along the circumference on the inner sidewall of the rim body opposite to the movable seat ring; the outer circumferential surface of the lock ring is machined with guide protrusions that match the axial guide grooves. The rim body has an internally fixed intermediate frame and a positioning protrusion on its outer side. The outer side of the rim body has a first groove and a first sealing ring inside the first groove. The side of the movable seat ring has a second groove and a second sealing ring inside the second groove. The inner walls of the first groove and the second groove are both machined with annular anti-detachment flanges. The inner rings of the first sealing ring and the second sealing ring have annular grooves that match the annular anti-detachment flanges. The outer surfaces of the first sealing ring and the second sealing ring are both machined with at least one annular sealing lip. The outer surface of one end of the positioning protrusion is provided with a positioning groove, and the interior of the positioning groove is provided with a plurality of elastic plates, the elastic plates including an inclined part, a support part and a connecting part; the inner surface of the positioning groove is provided with a threaded hole, the connecting part is detachably connected to the positioning groove by a fixing bolt, and an adjustable shim is provided between the connecting part and the inner surface of the positioning groove; the outer surface of the support part is a smooth surface.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the positioning protrusion is a circular ring structure, and the positioning groove is opened on the end face of the positioning protrusion near the movable seat ring.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: both the first sealing ring and the second sealing ring are made of EPDM and NBR composite rubber material, and the elastic sheet is made of 60Si2Mn spring steel material.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: one end of the movable seat ring is inserted into the inside of the positioning groove, and the outer surface of one end of the movable seat ring is in contact with the support part.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the inflation nozzle is provided with a spring hook, and the spring hook is provided with an anti-detachment buckle; a connector is fixed on the nozzle cap, and the spring hook is connected to the connector through a rubber-coated stainless steel wire rope; an annular storage groove is machined on the side of the inflation nozzle, and the groove wall of the annular storage groove is provided with a rope threading hole for the rubber-coated stainless steel wire rope to pass through.

[0011] The beneficial effects of this utility model are as follows: More precise lock ring positioning: The axial guide groove of the wheel rim body cooperates with the guide convex strip of the lock ring to force the lock ring to be precisely positioned axially, avoiding sealing failure or abnormal noise during driving due to misalignment, and ensuring accurate lock ring positioning; The elastic components have a longer lifespan and greater adaptability: The elastic sheet is made of 60Si2Mn spring steel, which has a high fatigue life. The detachable bolt connection and adjusting shim design make it easy to replace aging parts and can be adapted to lock rings of different thicknesses. The sealing ring is made of a composite material of EPDM (ethylene propylene diene monomer rubber) and NBR (nitrile butadiene rubber), which has a wide range of high and low temperature resistance. The annular anti-detachment flange and the annular groove cooperate to prevent displacement. The rubber-coated stainless steel wire rope is rust-proof and eliminates collision noise. The circular storage groove prevents the wire rope from shaking, and the anti-detachment buckle prevents the cap from accidentally falling off. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall cross-sectional structure of an embedded limiting wheel proposed in this utility model; Figure 2 This is a side view of the hub of an embedded limiting wheel proposed in this utility model; Figure 3 This utility model proposes an embedded limiting wheel. Figure 1 Enlarged view of point A in the middle; Figure 4 This utility model proposes an embedded limiting wheel. Figure 1 Enlarged view at point B in the middle; Figure 5 This is a side view of a positioning protrusion for an embedded limiting wheel proposed in this utility model. Figure 6 This is a structural diagram of an elastic sheet for an embedded limiting wheel proposed in this utility model; Figure 7 This is a structural diagram of the nozzle cap in Embodiment 2 of the embedded limiting wheel proposed in this utility model.

[0013] In the diagram: 1 Wheel body, 2 Wheel hub, 3 Tire, 4 Inflation nozzle, 40 Annular storage groove, 5 Nozzle cap, 6 Wheel rim body, 7 Movable seat ring, 8 Retaining ring, 9 Locking ring, 10 Intermediate frame, 11 Positioning protrusion, 12 First groove, 13 First sealing ring, 14 Second groove, 15 Second sealing ring, 16 Positioning groove, 160 Threaded hole, 17 Elastic sheet, 18 Inclined part, 19 Support part, 20 Connecting part, 200 Fixing bolt, 201 Washer, 21 Spring hook, 210 Anti-detachment buckle, 22 Connector, 23 Rubber-coated stainless steel wire rope. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.

[0015] Example 1: Referring to Figures 1-6, an embedded limiting wheel is characterized in that it includes a wheel body 1 and a wheel hub 2, a tire 3, an inflation nozzle 4 and a nozzle cap 5 disposed on the wheel body 1. The wheel hub 2 includes a rim body 6, a movable seat ring 7, a retaining ring 8 and a locking ring 9, and there are two retaining rings 8. The movable seat ring 7 is sleeved on the rim body 6. The retaining ring 8 located at one end of the wheel hub 2 is sleeved on the movable seat ring 7, and the retaining ring 8 located at the other end of the wheel hub 2 is sleeved on the rim body 6. The locking ring 9 is located between the rim body 6 and the movable seat ring 7. At least two axial guide grooves are symmetrically opened along the circumference on the inner sidewall of the rim body 6 opposite to the movable seat ring 7; the outer circumferential surface of the lock ring 9 is machined with guide protrusions that match the axial guide grooves; the thickness of the guide protrusions is smaller than the width of the axial guide grooves, and the guide protrusions are inserted along the axial guide grooves during assembly to ensure that the lock ring 9 is accurately aligned. Furthermore, an intermediate frame 10 is fixed inside the rim body 6, and a positioning protrusion 11 is provided on the outer side of the rim body 6. A first groove 12 is opened on the outer side of the rim body 6, and a first sealing ring 13 is provided inside the first groove 12. A second groove 14 is opened on the side of the movable seat ring 7, and a second sealing ring 15 is provided inside the second groove 14. The inner sidewalls of the first groove 12 and the second groove 14 are both machined with annular anti-detachment flanges 130. The inner rings of the first sealing ring 13 and the second sealing ring 15 are provided with annular grooves that match the annular anti-detachment flanges 130. The outer surfaces of the first sealing ring 13 and the second sealing ring 15 are both machined with at least one annular sealing lip. The inner rings of the first sealing ring 13 and the second sealing ring 15 are engaged and fixed with the annular anti-detachment flange 130 through annular grooves to prevent displacement, and the outer surfaces of the first sealing ring 13 and the second sealing ring 15 are double-sealed by two annular sealing lips; the first sealing ring 13 and the second sealing ring 15 are both made of EPDM and NBR composite rubber. Furthermore, a positioning groove 16 is formed on the outer surface of one end of the positioning protrusion 11, and a plurality of elastic pieces 17 are provided inside the positioning groove 16. The elastic pieces 17 include an inclined part 18, a support part 19 and a connecting part 20. A threaded hole 160 is formed on the inner surface of the positioning groove 16. The connecting part 20 is detachably connected to the positioning groove 16 by a fixing bolt 200, and an adjustable thickness gasket 201 is provided between the connecting part 20 and the inner surface of the positioning groove 16. The outer surface of the support part 19 is a smooth surface. The positioning protrusion 11 has a circular structure, and the positioning groove 16 is opened on the end face of the positioning protrusion 11 near the movable seat ring 7. The positioning groove 16 is provided with 6 elastic plates 17 evenly distributed around the circumference. The elastic plates 17 are made of 60Si2Mn spring steel. A 1mm thick shim 201 is placed between the connecting part 20 and the positioning groove 16 to adjust the initial elastic force of the elastic plates 17. One end of the movable seat ring 7 is inserted into the interior of the positioning groove 16, and the outer surface of one end of the movable seat ring 7 is in contact with the support part 19.

[0016] Example 2 Reference Figure 1-7 Based on Embodiment 1, this embodiment further optimizes the connection structure between the inflation nozzle 4 and the nozzle cap 5: The inflation nozzle 4 is equipped with a spring hook 21, and an anti-detachment buckle 210 is integrally formed on the spring hook 21. Pressing the anti-detachment buckle 210 will open the spring hook 21 and prevent accidental detachment. A connector 22 is fixed on the nozzle cap 5. The spring hook 21 is connected to the connector 22 through a rubber-coated stainless steel wire rope 29. The outer layer of the rubber-coated stainless steel wire rope 29 is covered with TPU elastic rubber to prevent rust and collision noise. The side of the inflation nozzle 4 is processed with an annular storage groove 40. After inflation, the rubber-coated stainless steel wire rope 23 is wound into the annular storage groove 40 and fixed by passing it through the rope hole to prevent the wire rope from shaking and snagging on foreign objects.

[0017] Working principle: When installing tire 3, first lay the rim body 6 flat, put a retaining ring 8 on the tire 3, then align the guide protrusion 25 of the locking ring 9 with the axial guide groove of the rim body 6 and insert it. Then, put the movable seat ring 7 with another retaining ring 8 on it along the rim body 6, so that the end of the movable seat ring 7 is inserted into the positioning groove 16. Press the movable seat ring 7, and the inclined part 18 of the elastic piece 17 is deformed by pressure. When the distance between the movable seat ring 7 and the rim body 6 is sufficient, the locking ring 9 is fully in place. After the pressing pressure is released, the elasticity of the elastic piece 17 drives the movable seat ring 7 to squeeze the locking ring 9. The sealing lips of the first sealing ring 13 and the second sealing ring 15 are deformed by pressure to achieve a seal. When inflating, open the nozzle cap 5, and the rubber-coated stainless steel wire rope 29 moves with the nozzle cap 5. After inflation, wind the wire rope around the annular storage groove 30 and close the nozzle cap 5.

[0018] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. An embedded limiting wheel, characterized in that: The invention includes a wheel body (1) and a wheel hub (2), a tire (3), an inflation nozzle (4) and a nozzle cap (5) disposed on the wheel body (1). The invention is characterized in that: the wheel hub (2) includes a rim body (6), a movable seat ring (7), a retaining ring (8) and a locking ring (9), and there are two retaining rings (8). The movable seat ring (7) is fitted onto the rim body (6). The retaining ring (8) located at one end of the wheel hub (2) is fitted onto the movable seat ring (7), and the retaining ring (8) located at the other end of the wheel hub (2) is fitted onto the rim body (6). The locking ring (9) is located between the rim body (6) and the movable seat ring (7). At least two axial guide grooves are symmetrically opened along the circumference on the inner side wall of the rim body (6) opposite to the movable seat ring (7); the outer circumferential surface of the lock ring (9) is machined with guide protrusions that match the axial guide grooves. The rim body (6) has an internal intermediate frame (10) fixed inside, and the outer side of the rim body (6) is provided with a positioning protrusion (11). The outer side of the rim body (6) is provided with a first groove (12), and the first groove (12) is provided with a first sealing ring (13). The side of the movable seat ring (7) is provided with a second groove (14), and the second groove (14) is provided with a second sealing ring (15). The inner sidewalls of the first groove (12) and the second groove (14) are both machined with annular anti-detachment flanges (130). The inner rings of the first sealing ring (13) and the second sealing ring (15) are provided with annular grooves that match the annular anti-detachment flanges (130). The outer surfaces of the first sealing ring (13) and the second sealing ring (15) are both machined with at least one annular sealing lip. The positioning protrusion (11) has a positioning groove (16) on its outer surface at one end, and a plurality of elastic pieces (17) are provided inside the positioning groove (16). The elastic pieces (17) include an inclined part (18), a support part (19) and a connecting part (20). The inner surface of the positioning groove (16) has a threaded hole (160). The connecting part (20) is detachably connected to the positioning groove (16) by a fixing bolt (200), and a shim (201) with adjustable thickness is provided between the connecting part (20) and the inner surface of the positioning groove (16). The outer surface of the support part (19) is a smooth surface.

2. The embedded limiting wheel according to claim 1, characterized in that: The positioning protrusion (11) has a circular structure, and the positioning groove (16) is opened on the end face of the positioning protrusion (11) near the movable seat ring (7).

3. The embedded limiting wheel according to claim 1, characterized in that: The first sealing ring (13) and the second sealing ring (15) are both made of EPDM and NBR composite rubber, and the elastic sheet (17) is made of 60Si2Mn spring steel.

4. The embedded limiting wheel according to claim 1, characterized in that: One end of the movable seat ring (7) is inserted into the inside of the positioning groove (16), and the outer surface of one end of the movable seat ring (7) is in contact with the support part (19).

5. An embedded limiting wheel according to claim 1, characterized in that: The inflation nozzle (4) is provided with a spring hook (21), and the spring hook (21) is provided with an anti-detachment buckle (210); the nozzle cap (5) is fixed with a connector (22), and the spring hook (21) is connected to the connector (22) through a rubber-coated stainless steel wire rope (23). The side of the inflation nozzle (4) is machined with an annular storage groove (40), and the groove wall of the annular storage groove (40) is provided with a rope hole for the rubber-coated stainless steel wire rope (23) to pass through.

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