Tire inflation safety cage

CN224617337UActive Publication Date: 2026-08-11SHAANXI TONLY HEAVY IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0002]随着采矿需求的增加,用于矿山运输车辆的非公路矿用自卸车载重也随之增大,因此轮胎直径也在不断增加,较大直径的轮胎需要较高的充气压力,加之非公路自卸车行驶道路多为盘旋坑洼道路,行驶路况较公路自卸车恶劣,总重较重在长高负荷下轮胎磨损严重,在对高压轮胎进行充气时,高压轮胎充气操作不当极有可能导致爆胎事故的发生,高压轮胎的爆胎后果十分严重,产生不可估量的破坏力,对于人身安全和财产安全造成潜在的危险

Benefits of technology

通过设置防护框、充气孔、防护架、坡道辅助板,提供了一种轮胎充气安全防护笼,适用于不同宽度轮胎的充气,提高了轮胎充气的安全性。

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Abstract

This utility model discloses a tire inflation safety cage, comprising a vertical protective frame with an inflation hole; a pair of protective frames disposed on the inner bottom wall of the protective frame, the pair of protective frames being spaced apart along the width direction of the protective frame, the spacing between the pair of protective frames being adjustable; and ramp auxiliary plates disposed on both sides of the pair of protective frames along the length direction of the protective frame. The beneficial effects of this utility model are that, by setting up the protective frame, inflation hole, protective frames, and ramp auxiliary plates, a tire inflation safety cage is provided, suitable for inflating tires of different widths, thus improving the safety of tire inflation.
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Description

Technical Field

[0001] This utility model relates to the field of tire inflation safety equipment. More specifically, this utility model relates to a tire inflation safety protective cage. Background Technology

[0002] With increasing mining demands, the load capacity of off-highway mining dump trucks used for mine transportation has also increased, leading to a continuous increase in tire diameter. Larger diameter tires require higher inflation pressures. Furthermore, off-highway dump trucks often travel on winding, potholed roads, making road conditions worse than on-highway dump trucks. The heavier weight and high loads result in severe tire wear. Improper inflation of high-pressure tires can easily lead to tire blowouts, with potentially devastating consequences and immeasurable damage, posing a significant risk to personal safety and property. In actual mines, small pump stations are often used for inflating mining dump truck tires, making it difficult to accurately control the inflation volume. Over-inflation or under-inflation drastically shortens tire lifespan. To ensure worker safety, it is crucial to anticipate potential hazards during operation and implement effective preventative measures to prevent tire explosions that could cause personal injury or substantial economic losses. Existing tire protection cages have fixed widths; narrower tires placed inside are prone to tipping over during inflation, increasing safety risks. Utility Model Content

[0003] One object of this invention is to solve at least the problems described above and to provide at least the advantages that will be explained later.

[0004] Another objective of this invention is to provide a tire inflation safety cage that is suitable for inflating tires of different widths, thereby improving the safety of tire inflation.

[0005] To achieve these objectives and other advantages according to the present invention, a tire inflation safety cage is provided, comprising: A vertical protective frame, wherein the protective frame is provided with an air inlet; A pair of protective frames are provided on the inner bottom wall of the protective frame. The pair of protective frames are spaced apart along the width direction of the protective frame, and the spacing between the pair of protective frames is adjustable. The ramp auxiliary plates are respectively installed on both sides of a pair of protective frames along the length of the protective frame.

[0006] Preferably, the protective frame has detachable cover plates at both open ends along its length; the bottom plate of the protective frame has locking ends on both end walls along its length, and the cover plates have locking holes on both end walls along its length that are adapted to the locking ends. The inner bottom wall of the protective frame is provided with a first sliding groove, which is arranged along the length of the protective frame; the cover plate is provided with a second sliding groove, and when a corresponding end on the cover plate is engaged in one of the locking holes on the cover plate, the second sliding groove and the first sliding groove are connected to form a sliding groove. It also includes a base plate, on which the protective frame and the ramp auxiliary plate are both mounted. The bottom of the base plate is provided with a pulley adapted to the slide groove, so that the base plate slides along the slide groove, thereby causing the base plate to slide into / out of the protective cage.

[0007] Preferably, the uphill plate of a pair of ramp auxiliary plates consists of multiple parallel, rollable rollers.

[0008] Preferably, the first slide groove and the second slide groove are a pair; The cover plate includes a frame plate and multiple round tubes, which are spaced apart along the width direction of the frame plate. The frame plate has a pair of second sliding grooves on both ends along its width direction.

[0009] Preferably, the adjustable spacing of the pair of protective frames is specifically as follows: one protective frame is fixed on the base plate, and the other protective frame is slidably mounted on the base plate. Multiple adjusting components are provided between the pair of protective frames, and the multiple adjusting components are spaced apart along the length direction of the protective frame. Each adjusting component includes a fixed tube and a sliding rod. The sliding rod is slidably inserted into the fixed tube. The opposite ends of the fixed tube and the sliding rod are respectively located on the opposite side walls of the pair of protective frames. Multiple pairs of first through holes are spaced apart along the length direction of the fixed tube. The sliding rod is provided with a second through hole. When the second through hole is coaxial with one of the pairs of first through holes, the length of the sliding rod extending out of the fixed tube is fixed by a pin passing through one of the first through holes, the second through hole, and the other first through hole.

[0010] Preferably, the protective frame includes a bottom plate, a pair of side plates, and a top plate, wherein the bottom plate, the pair of side plates, and the top plate are welded together in sequence to form the protective frame, and the side plates are provided with the air inlet. The side plate includes multiple supporting pipe groups arranged side by side. Reinforcing plates are welded to both sides of the supporting pipe groups along the width direction of the protective frame. The reinforcing plates cover the supporting pipe groups, and a grid plate is provided on the opposite surface of a pair of reinforcing plates that are close to each other.

[0011] Preferably, the side plate of the protective frame is machined with a vertical sliding groove near the open end, the openings of a pair of sliding grooves are opposite each other, the top of the sliding grooves are open, and the cover plate is adapted to the sliding grooves so that the cover plate is inserted into the pair of sliding grooves to cover the open end.

[0012] Preferably, reinforcing ribs are welded between the top plate and the grid plate.

[0013] This utility model has at least the following beneficial effects: By incorporating a protective frame, inflation port, protective bracket, and ramp auxiliary plate, a tire inflation safety cage is provided, suitable for inflating tires of different widths, thus improving the safety of tire inflation.

[0014] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural view of the tire inflation safety protection cage according to one of the technical solutions of this utility model; Figure 2 This is a top view of the tire inflation safety cage according to one of the technical solutions of this utility model after removing the top plate; Figure 3 This is a side view of the structure of the protective frame and the side plate according to one of the technical solutions of this utility model; Figure 4 This is a front view of the structure of the tire inflation safety protection cage according to one of the technical solutions of this utility model; Figure 5 This is a schematic diagram of the tire inflation safety cage when the substrate slides out of the protective frame according to one of the technical solutions of this utility model; Figure 6 This is a schematic diagram of the structure of the cover plate according to one of the technical solutions of this utility model; Figure 7 This is a schematic diagram of the structure of the ramp auxiliary plate with rollers according to one of the technical solutions of this utility model.

[0016] Reference numerals: 1-Top plate; 2-Reinforcing rib; 3-Grid plate; 4-Support pipe; 5-Fixing pipe; 6-Reinforcing plate; 7-Protective frame; 8-Pin; 9-Slide rod; 10-Ramp auxiliary plate; 11-Bottom plate; 13-Cover plate; 14-Second chute; 15-Roller; 16-Frame plate; 17-Round pipe; 18-Base plate; 19-Inflation hole; 100-Protective frame. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0018] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0019] like Figure 1-7 As shown, this utility model provides a tire inflation safety cage, comprising: A vertical protective frame 100, wherein the protective frame 100 is provided with an air inlet 19; A pair of protective frames 7 are provided on the inner bottom wall of the protective frame 100. The pair of protective frames 7 are spaced apart along the width direction of the protective frame 100, and the spacing between the pair of protective frames 7 is adjustable. The ramp auxiliary plates 10 are respectively disposed on both sides of a pair of protective frames 7 along the length of the protective frame 100.

[0020] In the above technical solution, the main body of the tire inflation safety cage is a vertical rectangular protective frame 100, the overall size of which can be adjusted according to the tire specifications. An inflation hole 19 is provided on the side panel of the protective frame 100 for connecting an inflation tube. A pair of parallel protective frames 7 are installed on the inner bottom wall of the protective frame 100. The protective frames 7 can be welded from channel steel, and the distance between the pair of protective frames 7 is adjustable. For example, the protective frames 7 can be detachably connected to the inner bottom wall of the protective frame 100, and the protective frames 7 can be locked in position by connecting to a slide rail on the inner bottom wall of the protective frame 100 via bottom bolts, thus achieving adjustable distance between the pair of protective frames 7. A ramp auxiliary plate 10 is provided on each side of the protective frame 7 along its length. The ramp angle can be 15°-25°, and the ramp surface can be covered with an anti-slip patterned steel plate.

[0021] In this technical solution, during use, the spacing of the protective frames 7 is first adjusted according to the tire width: taking the aforementioned structure as an example, loosen the fixing bolts, move the protective frames 7 along the slide rail of the base plate 11 to the target position, and then re-tighten them. Push the tire into the protective cage along the ramp auxiliary plate 10, so that the tire is centered between the pair of protective frames 7, or first push the tire into the protective cage through the ramp auxiliary plate 10, and then adjust the spacing between the pair of protective frames 7 so that the tire is placed as vertically as possible between the pair of protective frames 7. After the tire is positioned, it is connected to the inflation device through the inflation hole 19 on the side wall of the protective frame 100. During inflation, the protective frames 7 restrict the horizontal displacement of the tire, and the overall structure of the protective frame 100 withstands the impact of a possible tire blowout.

[0022] The beneficial effects of this technical solution are that, by setting up a pair of adjustable-spaced protective frames 7, different tire sizes can be accommodated, avoiding the risk of small tires tipping over within a fixed-width protective cage. The ramp auxiliary plate 10 provides transition support during tire loading and unloading, reducing lifting height and manual handling effort, thus improving operational safety. The protective frame 100 effectively restrains the flying debris generated during a tire blowout, reducing harm to operators and surrounding equipment.

[0023] In another technical solution, the protective frame 100 is provided with a cover plate 13 at both open ends along its length; the bottom plate 11 of the protective frame 100 is provided with a locking end on both end walls along its length, and the cover plate 13 is provided with a locking hole on both end walls along its length that matches the locking end. The inner bottom wall of the protective frame 100 is provided with a first sliding groove, which is arranged along the length of the protective frame 100; the cover plate 13 is provided with a second sliding groove 14, which is formed when a corresponding end of the cover plate 13 is engaged in one of the holes on the cover plate 13, and the second sliding groove 14 is connected with the first sliding groove to form a sliding groove. It also includes a base plate 18, the protective frame 7 and the ramp auxiliary plate 10 are both disposed on the base plate 18, and the bottom of the base plate 18 is provided with a pulley adapted to the slide groove so that the base plate 18 slides along the slide groove, thereby causing the base plate 18 to slide into / out of the protective cage. In the above technical solution, cover plates 13 are detachably installed at the open ends of the protective frame 100 along its length. The bottom plate 11 of the protective frame 100 has locking ends (protrusion structures) on both ends of its length direction, and the cover plate 13 has locking holes on both ends of its length direction. The locking holes are adapted to the locking ends. When the cover plate 13 is removed from the open end and locked into the locking end of the bottom plate 11 through the locking holes, the bottom surface of the cover plate 13 is flush with the bottom surface of the bottom plate 11 of the protective frame 100. The base plate 11 of the protective frame 100 is provided with a first sliding groove, and the cover plate 13 is provided with a corresponding second sliding groove 14. When the cover plate 13 is locked with the locking end through the locking hole, the first sliding groove and the second sliding groove 14 form a continuous track. The bottom of the base plate 18 is equipped with a pulley, which is embedded in the sliding groove so that the base plate 18 can slide along the track. The protective frame 7 and the ramp auxiliary plate 10 are both fixed on the base plate 18.

[0024] In this technical solution, when loading and unloading the tire, one of the cover plates 13 is removed from the protective frame 100, and then the cover plate 13 is clipped onto the end wall of the bottom plate 11 of the protective frame 100. At this time, the second sliding groove 14 on the cover plate 13 and the first sliding groove on the bottom plate 11 form a continuous sliding groove. The base plate 18 is pulled outward along the sliding groove from outside the protective cage. After adjusting the spacing of the protective frame 7 and fixing the tire in the external space, the base plate 18 is pushed so that the tire slides into the protective cage along with the base plate 18. Finally, the cover plate 13 is removed from the end wall of the bottom plate 11 and then installed at the open end of the protective frame 100. A pair of cover plates 13 are installed at the two open ends of the protective frame 100, which can minimize the possibility of fragments flying out from the open ends when the tire explodes.

[0025] The beneficial effects of this technical solution are that, by setting up the cover plate 13, the locking end, the locking hole, the first sliding groove, the second sliding groove 14, and the base plate 18, a structure is provided that allows the base plate 18 to slide out of the protective cage. This facilitates rolling the tire between a pair of protective frames 7 outside the protective cage, expanding the operating space and reducing the difficulty of tire positioning. At the same time, the design of the cover plate 13 serves both as a protective barrier at the open end and as an extension plate to facilitate the sliding out of the base plate 18, thus providing multiple benefits.

[0026] In another technical solution, the uphill plate of a pair of ramp auxiliary plates 10 is composed of multiple parallel, rollable rollers 15. As shown in the figure, the ramp auxiliary plate 10 is a folded plate, similar in structure to two smoothly connected plates. The plate of the ramp auxiliary plate 10 furthest from the protective cage is the uphill plate. The uphill plate adopts a roller 15 structure. Specifically, the uphill plate includes a frame, and a row of rollers 15 is evenly spaced along the uphill direction inside the frame. Both ends of the rollers 15 are rotatably connected to the frame via bearings. The spacing of the rollers 15 is adaptively designed to allow the tires to roll and reduce friction. The exposed surface of the rollers 15 can be covered with a rubber layer to increase the coefficient of friction and prevent the tires from slipping.

[0027] In this technical solution, when loading and unloading tires, the tires are pushed into the protective cage along the ramp of roller 15. When the tires contact the surface of roller 15, roller 15 rotates under the weight of the tires, converting sliding friction into rolling friction, reducing the labor required for manual pushing, and making the process easier and less strenuous.

[0028] In another technical solution, the first slide groove and the second slide groove 14 are a pair; The cover plate 13 includes a frame plate 16 and multiple round tubes 17. The multiple round tubes 17 are spaced apart along the width direction of the frame plate 16. The frame plate 16 has a pair of second sliding grooves 14 on both ends of the plate along its width direction. In the above technical solution, the inner bottom wall of the protective frame 100 is provided with a pair of first sliding grooves, which are respectively located at both ends of the inner bottom wall of the protective frame 100 along its width direction. The cover plate 13 is provided with a pair of second sliding grooves 14, which correspond one-to-one with the pair of first sliding grooves. When the cover plate 13 is engaged with the end wall of the bottom plate 11 of the protective frame 100, the first sliding groove and the corresponding second sliding groove 14 form a continuous through sliding groove. The cover plate 13 includes a frame plate 16, and multiple round tubes 17 are spaced apart along its width direction inside the frame plate 16. The second sliding grooves 14 are located on the frame plate 16. The beneficial effects of adopting this technical solution are that by designing a pair of first sliding grooves and a pair of second sliding grooves 14, the overall sliding stability of the substrate 18 is improved; by setting the frame plate 16 and multiple round tubes 17, a structure for the cover plate 13 is provided, which reduces the weight of the cover plate 13 while maintaining its bending strength.

[0029] In another technical solution, the adjustable spacing between a pair of protective frames 7 is specifically as follows: one protective frame 7 is fixed on the base plate 18, and the other protective frame 7 is slidably disposed on the base plate 18. A plurality of adjusting members are provided between the pair of protective frames 7. The plurality of adjusting members are spaced apart along the length direction of the protective frame 100. The adjusting members include a fixed tube 5 and a sliding rod 9. The sliding rod 9 is slidably inserted into the fixed tube 5. The opposite ends of the fixed tube 5 and the sliding rod 9 are respectively disposed on the opposite side walls of the pair of protective frames 7. A plurality of pairs of first through holes are spaced apart along the length direction of the fixed tube 5. A second through hole is provided on the sliding rod 9. When the second through hole is coaxial with one of the pairs of first through holes, the length of the sliding rod 9 extending out of the fixed tube 5 is fixed by a pin 8 passing through one of the first through holes, the second through hole, and the other first through hole. In the above technical solution, the adjustable spacing between a pair of protective frames 7 is achieved as follows: one protective frame 7 is fixed on the substrate 18, and the other protective frame 7 is connected to the substrate 18 via a bottom slider, making it a sliding protective frame 7. The pair of protective frames 7 are connected and locked together by an adjusting member. Two or four sets of adjusting members can be provided, depending on the actual situation. The structure of the adjusting member can include a fixed tube 5 and a sliding rod 9 located between the pair of protective frames 7. The fixed tube 5 is welded to the side wall of the fixed protective frame 7, and the sliding rod 9 is welded to the sliding protective frame 7. The sliding rod 9 is inserted into the fixed tube 5. The fixed tube 5 has a pair of coaxial first through holes, and the sliding rod 9 has a second through hole. During adjustment, the sliding rod 9 is pulled out. When the second through hole aligns with any pair of first through holes on the fixed tube 5, a pin 8 is inserted to lock the two holes.

[0030] In this technical solution, when in use, first remove the pin 8 to disconnect the connection between the fixing rod and the slide rod 9, then push the movable protective frame 7 to the target distance, push the tire between the pair of protective frames 7, then keep the second through hole of the slide rod 9 aligned with the pair of first through holes on the fixing tube 5, insert the pin 8 through the side hole walls, thus fixing the distance between the pair of protective frames 7.

[0031] The beneficial effect of adopting this technical solution is that by setting a fixed rod, a sliding rod 9, a first through hole, and a second through hole, an adjustable spacing between a pair of protective frames 7 is provided, which is convenient for processing and manufacturing, and also convenient to use.

[0032] In another technical solution, the protective frame 100 includes a bottom plate 11, a pair of side plates, and a top plate 1. The bottom plate 11, the pair of side plates, and the top plate 1 are welded together in sequence to form the protective frame 100. The side plates are provided with the air inlet 19. The side plate includes multiple sets of support tubes arranged side by side. Each set of support tubes has a reinforcing plate 6 welded to both sides along the width of the protective frame 100. The reinforcing plate 6 covers the set of support tubes. A grid plate 3 is provided on the opposite surface of a pair of reinforcing plates 6 that are close to each other. In the above technical solution, the protective frame 100 includes a base plate 11, a pair of side plates disposed on the base plate 11 along its width direction, and a top plate 1 disposed on the top of the pair of side plates. The side plates include a pair of reinforcing plates 6, a set of support pipes 4 disposed between the pair of reinforcing plates 6, and a mesh grid plate 3 disposed on the inner reinforcing plate 6. The set of support pipes 4 includes multiple support pipes 4 disposed along the length direction of the protective cage. The reinforcing plates 6, the support pipes 4, and the mesh grid plate 3 are welded together to form the side plates. An inflation hole 19 is provided on one side plate to facilitate the connection of the inflation tube. In actual use, after the inflation hole 19 is provided on the side plate, in order to ensure the strength of the side plate, the circumferential edge of the inflation hole 19 can be closed by the circumferential plate to facilitate the support and installation of the support tube 4 around the inflation. The beneficial effect of adopting this technical solution is that by setting the base plate 11, side plate, top plate 1, and support tube 4, a structure for the protective frame 100 is provided, which reduces the weight of the protective frame 7 while ensuring structural strength and has strong practicality.

[0033] In another technical solution, the side plate of the protective frame 100 is machined with a vertical sliding groove near the open end, the openings of a pair of sliding grooves are opposite each other, the top of the sliding grooves are open, and the cover plate 13 is adapted to the sliding grooves so that the cover plate 13 is inserted into a pair of sliding grooves to cover the open end. In the above technical solution, the side plates of the protective plate are provided with sliding grooves near the open end. The sliding grooves are arranged in a vertical direction. The slots of a pair of sliding grooves on the two side plates at the open end are opposite each other. The thickness of the cover plate 13 is adapted to the width of the sliding groove and the top of the sliding groove is open so that the cover plate 13 can be inserted into a pair of sliding grooves from the top opening of the sliding groove, thereby covering the open end of the protective frame 100. The beneficial effect of adopting this technical solution is that by designing a sliding groove, a detachable connection is provided between the cover plate 13 and the open end of the protective frame 100, which is convenient for both installation and removal and has strong practicality.

[0034] In another technical solution, a reinforcing rib 2 is welded between the top plate 1 and the grid plate 3. The beneficial effect of this technical solution is that by designing the reinforcing rib 2, the connection strength between the top plate 1 and the grid plate is improved, thereby improving the overall strength of the protective cage.

[0035] The number of devices and processing capacity described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of the tire inflation safety cage of this utility model will be readily apparent to those skilled in the art.

[0036] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A tire inflation safety cage, characterized in that, include: A vertical protective frame, wherein the protective frame is provided with an air inlet; A pair of protective frames are provided on the inner bottom wall of the protective frame. The pair of protective frames are spaced apart along the width direction of the protective frame, and the spacing between the pair of protective frames is adjustable. The ramp auxiliary plates are respectively installed on both sides of a pair of protective frames along the length of the protective frame.

2. The tire inflation safety cage as described in claim 1, characterized in that, The protective frame is detachably equipped with cover plates at both open ends along its length; the bottom plate of the protective frame is provided with locking ends on both end walls along its length, and the cover plates are provided with locking holes on both end walls along its length that are adapted to the locking ends. The inner bottom wall of the protective frame is provided with a first sliding groove, which is arranged along the length of the protective frame; the cover plate is provided with a second sliding groove, and when a corresponding end on the cover plate is engaged in one of the locking holes on the cover plate, the second sliding groove and the first sliding groove are connected to form a sliding groove. It also includes a base plate, on which the protective frame and the ramp auxiliary plate are both mounted. The bottom of the base plate is provided with a pulley adapted to the slide groove, so that the base plate slides along the slide groove, thereby causing the base plate to slide into / out of the protective cage.

3. The tire inflation safety cage as described in claim 1, characterized in that, The uphill plate of a pair of ramp auxiliary plates consists of multiple parallel, rolling rollers.

4. The tire inflation safety cage as described in claim 2, characterized in that, The first slide and the second slide are a pair; The cover plate includes a frame plate and multiple round tubes, which are spaced apart along the width direction of the frame plate. The frame plate has a pair of second sliding grooves on both ends along its width direction.

5. The tire inflation safety cage as described in claim 2, characterized in that, The adjustable spacing between a pair of protective frames is specifically as follows: one protective frame is fixed on the base plate, and the other protective frame is slidably mounted on the base plate. Multiple adjusting components are provided between the pair of protective frames, and these components are spaced apart along the length of the protective frame. Each adjusting component includes a fixed tube and a sliding rod. The sliding rod is slidably inserted into the fixed tube. The opposite ends of the fixed tube and the sliding rod are respectively located on the opposite side walls of the pair of protective frames. Multiple pairs of first through holes are spaced apart along the length of the fixed tube, and the sliding rod is provided with a second through hole. When the second through hole is coaxial with one of the pairs of first through holes, the length of the sliding rod extending out of the fixed tube is fixed by a pin passing through one of the first through holes, the second through hole, and the other first through hole.

6. The tire inflation safety cage as described in claim 4, characterized in that, The protective frame includes a base plate, a pair of side plates, and a top plate. The base plate, the pair of side plates, and the top plate are welded together in sequence to form the protective frame. The side plates are provided with the inflation holes. The side plate includes multiple supporting pipe groups arranged side by side. Reinforcing plates are welded to both sides of the supporting pipe groups along the width direction of the protective frame. The reinforcing plates cover the supporting pipe groups, and a grid plate is provided on the opposite surface of a pair of reinforcing plates that are close to each other.

7. The tire inflation safety cage as described in claim 2, characterized in that, The side plate of the protective frame is machined with a vertical sliding groove near the open end. The openings of a pair of sliding grooves face each other, and the top of the sliding groove is open. The cover plate is adapted to the sliding groove so that the cover plate is inserted into a pair of sliding grooves to cover the open end.

8. The tire inflation safety cage as described in claim 6, characterized in that, Reinforcing ribs are welded between the top plate and the grid plate.