Tire inflation safety protection device

Abstract

The utility model belongs to the technical field of mine truck production, and particularly relates to a tire inflation safety protection device which comprises a bottom bracket, a bearing bracket is hinged to the upper portion of the bottom bracket, a tire is placed on the upper portion of the bearing bracket, a plurality of sliding rods are arranged on the upper surface of the bearing bracket, and a protection frame is jointly arranged on the sliding rods in a sliding mode. A pressing device is fixedly connected to the upper portion of the protection frame and used for pressing the protection frame on a tire, the bearing bracket comprises two first cross beams and two second cross beams, a rotating roller assembly is rotationally installed on the bearing bracket and comprises two third cross beams parallel to the first cross beams, and a plurality of rotating rollers are rotationally installed between the two third cross beams. By adjusting the height position of the rotating roller assembly, different production requirements are met, the labor intensity of workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of mining vehicle manufacturing technology, and in particular relates to a tire inflation safety protection device. Background Technology

[0002] Due to the special nature of their working environment, mining machinery often needs to cope with multiple challenges such as complex terrain, heavy loads, harsh weather, and special working conditions. For this reason, mining machinery usually adopts flat rims or detachable rims that have strong load-bearing capacity and are easy to maintain.

[0003] Flat rims and detachable rims are usually composed of rim body, retaining ring, locking ring and other components. If the retaining ring, locking ring and other components are not installed properly during tire assembly, the retaining ring and locking ring are very likely to pop out and injure people when the tire is inflated, which poses a huge safety hazard. Therefore, appropriate protective devices need to be used when inflating the tires of mining machinery.

[0004] Chinese utility model patent application number 202211325099.3 discloses a tire inflation burst protection device. A fixed column is set at the center of one end of the welded steel plate base, and a protective rotating arm is set at the top of the fixed column. The other end of the protective rotating arm is equipped with a tire limiting steel ring through a height adjustment handwheel. The tire limiting steel ring is pressed and matched with the tire to prevent the tire explosion from causing injury to personnel and objects. A tire axle fixing column is set at the center of the other end of the welded steel plate base, and the tire axle coincides with the tire axle fixing column.

[0005] When using the above-mentioned protective device, the tire is horizontally mounted on the outside of the tire axle core fixing post. Therefore, the placement and removal of the tire requires manual labor or the use of tools such as overhead cranes and forklifts. In general production, after the tire is inflated, it needs to be stored or assembled upright. For heavy tires used in construction machinery, the lifting operation is time-consuming, laborious and poses a significant safety hazard. Therefore, it is necessary to find an inflatable protective device that can facilitate the transfer of tires. Utility Model Content

[0006] The main technical problem to be solved by this utility model is to provide a tire inflation safety protection device, which sets the sliding rods for mounting the protective beam on both sides of the tire, so that the tire can be adjusted at will and can adapt to different production needs by adjusting the height of the rotating roller assembly, thereby reducing the labor intensity of workers and improving work efficiency.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A tire inflation safety protection device includes a base bracket, a support bracket hinged above the base bracket, a tire placed on the support bracket, a plurality of sliding rods provided on the upper surface of the support bracket, a protective frame slidably mounted on the plurality of sliding rods, and a pressing device fixedly connected above the protective frame for pressing the protective frame onto the tire. The device is characterized in that: the support bracket includes two first crossbeams and two second crossbeams, and a rotating roller assembly is rotatably mounted on the support bracket. The rotating roller assembly includes two third crossbeams parallel to the first crossbeams, and a plurality of rotating rollers are rotatably mounted between the two third crossbeams, with the upper surface of the rotating rollers higher than the upper surface of the third crossbeams.

[0009] The following are further optimizations of the above technical solution by this utility model:

[0010] A rotating shaft assembly is rotatably installed between the third crossbeam and the first crossbeam, near both ends of the third crossbeam. The rotating shaft assembly includes a connecting plate, and a first rotating shaft is fixedly connected to each of the two opposite sides of the connecting plate. The two first rotating shafts are rotatably installed on the third crossbeam and the first crossbeam respectively. The rotating shaft assembly drives the rotating roller assembly to rotate and move on the support bracket, thereby realizing the position switching of the rotating roller assembly.

[0011] Further optimization: A lifting rod is fixedly connected to the bottom surface of the third crossbeam, and a locking buckle is set below the first crossbeam. When the lifting rod moves upward, it engages with the locking buckle to lock the rotating roller assembly in the lifting position.

[0012] Further optimization: The locking buckle is inverted U-shaped, with the middle part of the locking buckle protruding outward. The inner diameter is adapted to the outer diameter of the lifting rod. The size of the opening at the lower end of the locking buckle is smaller than the outer diameter of the lifting rod. The inner side of the locking buckle is made of rubber.

[0013] Further optimization: An upper hinge seat is fixedly connected to each end of the bottom surface of one of the first crossbeams, and two lower hinge seats are fixedly connected to the bottom bracket at the corresponding positions of the upper hinge seats. A hinge shaft passes through the corresponding upper and lower hinge seats.

[0014] Further optimization: A middle crossbeam is set between the two second crossbeams. The middle crossbeam is arranged parallel to the second crossbeams and its two ends are fixedly connected to the two first crossbeams respectively. A lifting device is set between the bottom bracket and the load-bearing bracket. The fixed end of the lifting device is hinged to the bottom bracket, and the telescopic end is hinged to the bottom surface of the middle crossbeam.

[0015] Further optimization: A support frame is provided on the side of the bottom surface of the bearing bracket away from the upper hinge seat. The support frame includes a support seat fixedly connected to the bottom surface of the first crossbeam. A support rod is threadedly connected to the support seat. A buffer block is fixedly connected to the lower end of the support rod. The buffer block abuts against the upper surface of the bottom bracket.

[0016] Further optimization: A conveying mechanism is set at one end of the support bracket. The width of the conveying mechanism is greater than the tire diameter. The height of one end of the conveying mechanism is aligned with the height of the support bracket, and the other end is tilted downwards and close to the ground height.

[0017] Further optimization: A support plate is fixedly connected to the bottom surface of the first crossbeam at the position corresponding to that of the third crossbeam.

[0018] The present invention adopts the above technical solution and has the following beneficial effects:

[0019] The tire inflation protection device of this utility model has sliding bars for mounting the protective beam set on both sides of the tire. In this way, the tire's translation is not affected by the sliding bars. The tire can be installed or removed from the support bracket without lifting the tire away from the sliding bars or removing the sliding bars, which simplifies the production process and reduces the labor intensity of workers.

[0020] The tire inflation protection device of this utility model has a rotating roller assembly on the bottom surface of the tire, and the height of the rotating roller assembly can be adjusted according to production needs. This ensures that the tire is provided with a reliable support surface, and when the tire position needs to be adjusted, the rotating roller assembly can be raised so that the bottom surface of the tire is separated from the support bracket and only contacts the rotating roller, thereby reducing the friction of tire movement and improving work efficiency.

[0021] The rotating roller assembly of this invention achieves vertical position adjustment through the cooperation of the lifting rod and the locking buckle. The adjustment operation is simple and can adapt to the fast production pace.

[0022] The tire inflation protection device of this utility model is also equipped with a lifting device. After the tire is fully inflated, the lifting device pushes the support bracket to stand up at a certain angle, causing the tire to be tilted and upright, making it convenient for workers to transfer the tire to the next process in an upright position.

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a front view of the overall structure of Embodiment 1 of this utility model;

[0025] Figure 2 This is a perspective view of the overall structure of Embodiment 1 of this utility model;

[0026] Figure 3 This is a bottom view of the support bracket and rotating roller assembly of Embodiment 1 of this utility model;

[0027] Figure 4 This is a perspective view of the support bracket of Embodiment 1 of this utility model;

[0028] Figure 5This is a perspective view of the rotating roller assembly and rotating shaft assembly of Embodiment 1 of this utility model;

[0029] Figure 6 This is a perspective view of the rotating roller assembly in the lifting state according to Embodiment 1 of this utility model.

[0030] Figure 7 This is a perspective view of the pressing device in Embodiment 2 of this utility model.

[0031] In the diagram: 1. Base bracket; 101. Lower hinge seat; 2. Bearing bracket; 201. First crossbeam; 202. Second crossbeam; 203. Upper hinge seat; 204. Middle crossbeam; 205. Locking buckle; 206. Support plate; 207. Slide rod; 3. Conveying mechanism; 4. Tire; 5. Hinge shaft; 6. Support frame; 601. Support seat; 602. Support rod; 603. Buffer block; 7. Lifting device; 8. Rotating roller assembly; 801. Third crossbeam; 802. Rotating roller; 803. Lifting rod; 9. Rotating shaft assembly; 901. Connecting plate; 902. First rotating shaft; 10. Protective frame; 11. Clamping device; 1101. Pad; 1102. Clamping nut; 1103. Clamping handle; 1104. Clamping plate; 1105. Clamping push rod. Detailed Implementation

[0032] Example 1: As Figure 1-2 As shown, a tire inflation safety protection device includes a base bracket 1 for providing an installation interface. The base bracket 1 is a rectangular frame formed by profiles, and its bottom is fixedly connected to the ground to ensure the overall stability of the protection device. A load-bearing bracket 2 is provided above the base bracket 1, and a tire 4 is placed on the load-bearing bracket 2. A conveying mechanism 3 is provided at one end of the load-bearing bracket 2. The width of the conveying mechanism 3 is greater than the diameter of the tire 4, and it is used to transport the tire 4 onto the load-bearing bracket 2, avoiding manual handling and reducing the labor intensity of workers.

[0033] In this embodiment 1, the conveying mechanism 3 is a belt conveyor line. The height of one end of the belt conveyor line is aligned with the height of the support bracket 2, and the other end is inclined downward and close to the ground height, so as to ensure that the tire 4 can be easily transferred to the support bracket 2.

[0034] In addition to Embodiment 1, the conveying mechanism 3 can also be one of a plate chain conveyor or a roller conveyor, used to replace manual transfer of the tire 4 onto the support bracket 2. The belt conveyor, plate chain conveyor and roller conveyor are all existing technologies and can be purchased on the market, and will not be described in detail in this application.

[0035] like Figure 2 and Figure 4As shown, the support bracket 2 is a rectangular structure, and its length direction is consistent with the conveying direction of the conveying mechanism 3. It includes two first crossbeams 201 spaced apart along the length direction and two second crossbeams 202 spaced apart along the width direction. The two first crossbeams 201 and the two second crossbeams 202 are fixedly connected to form a closed frame structure to provide an installation interface.

[0036] One of the first crossbeams 201 has an upper hinge seat 203 fixedly connected to each end on the bottom surface near both ends. Two lower hinge seats 101 are fixedly connected to the bottom bracket 1 at positions corresponding to the upper hinge seats 203. A hinge shaft 5 passes through the corresponding upper hinge seat 203 and lower hinge seat 101. The bearing bracket 2 can rotate and move around the hinge shaft 5 on the bottom bracket 1.

[0037] A support frame 6 is provided on the side of the bottom surface of the support bracket 2 away from the upper hinge seat 203. The support frame 6 includes a support seat 601 fixedly connected to the bottom surface of the first crossbeam 201. A support rod 602 is threadedly connected to the support seat 601. A buffer block 603 is fixedly connected to the lower end of the support rod 602. The buffer block 603 abuts against the upper surface of the bottom bracket 1. By adjusting the length of the support rod 602 screwed into the buffer seat, the angle of the support bracket 2 can be adjusted to keep it parallel to the ground, ensuring that the tire 4 is placed safely and reliably. When the support bracket 2 rotates back to its original position around the hinge axis 5, the buffer block 603 contacts the bottom bracket 1, preventing the support rod 602 from directly contacting the bottom bracket 1 and causing a collision.

[0038] In this embodiment 1, the buffer block 603 is made of natural rubber or nylon and works in conjunction with the support rod 602. It can both adjust the support bracket 2 to keep it parallel to the ground and form a buffer when the support bracket 2 rotates back to its original position.

[0039] In addition to embodiment 1, the buffer block 603 can also be made of other non-rigid materials with a certain degree of hardness, which can play a supporting and buffering role for the bearing bracket 2.

[0040] A middle crossbeam 204 is provided between the two second crossbeams 202. The middle crossbeam 204 is arranged parallel to the second crossbeams 202 and its two ends are fixedly connected to the two first crossbeams 201 respectively. A lifting device 7 is provided between the bottom bracket 1 and the load-bearing bracket 2. The fixed end of the lifting device 7 is hinged to the bottom bracket 1, and the telescopic end is hinged to the bottom surface of the middle crossbeam 204. The telescopic end of the lifting device 7 extends out and pushes the load-bearing bracket 2 to rotate around the hinge axis 5, thereby raising the tire 4 at a certain angle to facilitate the transfer of the tire 4.

[0041] In this embodiment 1, the lifting device 7 can be selected from one of hydraulic push rod, pneumatic push rod or electric push rod, used to drive the bearing bracket 2 to rotate and lift the tire 4 to a certain angle, so that the tire 4 can be transferred to the next work station in an upright position, avoiding the manual operation of turning the tire 4, improving work efficiency and reducing safety hazards.

[0042] like Figure 3-5 As shown, a rotating roller assembly 8 is rotatably mounted on the support bracket 2 at a position between the middle crossbeam 204 and the two second crossbeams 202. The two rotating roller assemblies 8 are symmetrically arranged. Each rotating roller assembly 8 includes two spaced third crossbeams 801. The third crossbeams 801 are arranged parallel to the first crossbeams 201 and are located inside the two first crossbeams 201. Several rotating rollers 802 are rotatably mounted between the two third crossbeams 801. The rotating rollers 802 are arranged parallel to the second crossbeams 202. The upper surface of the rotating rollers 802 is higher than the upper surface of the third crossbeams 801, ensuring that the tire 4 is supported by the rotating rollers 802 without directly contacting the third crossbeams 801. When the tire 4 moves, the rotating rollers 802 convert sliding friction into rolling friction, reducing the resistance to the movement of the tire 4.

[0043] A rotating shaft assembly 9 is rotatably installed between the third crossbeam 801 and the first crossbeam 201 near both ends of the third crossbeam 801. The rotating shaft assembly 9 includes a connecting plate 901, and a first rotating shaft 902 is fixedly connected to each of the two opposite sides of the connecting plate 901, forming a "Z" shaped structure. The two first rotating shafts 902 are rotatably installed on the third crossbeam 801 and the first crossbeam 201 respectively. When the rotating shaft assembly 9 rotates, it drives the rotating roller assembly 8 to rotate and move on the support bracket 2.

[0044] The first crossbeam 201, the third crossbeam 801, and the two rotating shaft assemblies 9 form a parallelogram structure. The rotating shaft assembly 9 rotates, driving the rotating roller assembly 8 to rotate, and ensuring that the rotating roller assembly 8 remains parallel to the ground during its rotation and movement to prevent the tire 4 from slipping off.

[0045] In this embodiment 1, the rotational connection between the rotating roller 802 and the third crossbeam 801, and between the rotating shaft assembly 9 and the first crossbeam 201 and the third crossbeam 801, can be one of bearings, bushings, or other rotational connection structures to ensure that the rotating roller 802 and the rotating shaft assembly 9 can rotate freely.

[0046] A lifting rod 803 is fixedly connected to the bottom surface of the third crossbeam 801. The lifting rod 803 is arranged parallel to the rotating roller 802. One end of the lifting rod 803 extends to the bottom of the first crossbeam 201. A locking buckle 205 is fixedly connected to the bottom of the first crossbeam 201 at the position corresponding to the lifting rod 803.

[0047] The locking buckle 205 is inverted U-shaped, with the middle part of the locking buckle 205 protruding outward. The inner diameter of the locking buckle 205 is adapted to the outer diameter of the lifting rod 803. The size of the opening at the lower end of the locking buckle 205 is smaller than the outer diameter of the lifting rod 803. When the lifting rod 803 is moved upward, it is engaged with the protruding part in the middle of the locking buckle 205, thereby moving the rotating roller assembly 8 upward and locking it. The inner side of the locking buckle 205 is made of rubber to increase the friction between the locking buckle 205 and the lifting rod 803, ensuring that the rotating roller assembly 8 can be effectively locked.

[0048] A support plate 206 is fixedly connected to the bottom surface of the first crossbeam 201 at a position corresponding to that of the third crossbeam 801. Initially, the support plate 206 abuts against the bottom surface of the third crossbeam 801, the height of the upper surface of the rotating roller 802 is aligned with the height of the upper surface of the support bracket 2, and the bottom surface of the tire 4 is in contact with both the support bracket 2 and the upper surface of the rotating roller 802, ensuring that the tire 4 is placed stably and reliably. When it is necessary to move the position of the tire 4, the rotating roller 802 is moved upwards and extends beyond the upper surface of the support bracket 2 by raising the lifting rod 803. Figure 6 As shown, at this time, the bottom surface of tire 4 is only in contact with the rotating roller 802, which makes it easy to move the position of tire 4.

[0049] The upper surface of the support bracket 2 is provided with a slide bar 207, and a protective frame 10 is slidably mounted on the slide bar 207. A pressing device 11 is fixedly connected above the protective frame 10. The pressing device 11 presses the protective frame 10 onto the tire 4 to prevent the wheel rim and lock ring from popping out and injuring people during the tire 4 inflation process.

[0050] like Figure 2 As shown, a sliding rod 207 is fixedly connected to the middle position of each of the two first crossbeams 201. The two sliding rods 207 are arranged in the vertical direction and the distance between the two sliding rods 207 is greater than the outer diameter of the tire 4. The protective frame 10 is long and has through holes at both ends corresponding to the sliding rods 207. The protective frame 10 is sleeved on the sliding rods 207 through the through holes and can move up and down along the sliding rods 207.

[0051] The slide bar 207 has an external thread on its outer side. The clamping device 11 includes a pad 1101. The outer dimensions of the pad 1101 are larger than the width of the protective frame 10 to prevent excessive pressure from deforming the protective frame 10. A clamping nut 1102 is fixedly connected to the upper surface of the pad 1101. The thread specification of the clamping nut 1102 corresponds to the thread specification on the slide bar 207. A clamping handle 1103 is fixedly connected to the pad 1101 near the edge. Rotating the clamping handle 1103 causes the clamping nut 1102 to rotate and move downward on the slide bar 207, pressing the protective frame 10 onto the tire 4 to prevent the rim, lock ring, etc. from popping out and injuring people during the tire 4 inflation process.

[0052] In use, the tire 4 is conveyed to the support bracket 2 by the conveying mechanism 3. At this time, the rotating roller 802 is level with the upper surface of the support bracket 2. The rotating roller 802 and the support bracket 2 jointly support the tire 4 and push the tire 4 to adjust to a suitable position. If the tire 4 is heavy, the lifting rod 803 can be inserted into the locking buckle 205, and the rotating roller assembly 8 is lifted so that the tire 4 is separated from the support bracket 2 and only contacts the rotating roller 802, which facilitates position adjustment.

[0053] After the tire 4 is adjusted into place, the two ends of the protective frame 10 are put into the slide bar 207, the clamping device 11 is adjusted to press the protective frame 10 onto the tire 4, and then the tire 4 is inflated. After inflation, the clamping device 11 is released, the protective frame 10 is removed, the lifting rod 803 is inserted into the locking buckle 205 again, the rotating roller assembly 8 is lifted, and the tire 4 is moved to the point of being detached from the bearing bracket 2.

[0054] If the tire 4 needs to be transported or assembled upright, the lifting device 7 is activated after the tire 4 is inflated, the support bracket 2 is pushed to stand up at a certain angle, the protective frame 10 is removed, the rotating roller assembly 8 is lifted, and the tire 4 is pushed to detach from the support bracket 2 in an upright position.

[0055] In this embodiment 1, in order to prevent the tire 4 from tipping over after the protective frame 10 is removed, the lifting angle of the support bracket 2 is set to 70°-75°, so that the tire 4 is tilted and upright, which can ensure safety and allow the bottom surface of the tire 4 to contact the rotating roller assembly 8 for easy movement.

[0056] Example 2: As Figure 7 As shown, based on the tire inflation safety protection device described in Embodiment 1 above, Embodiment 2 differs from Embodiment 1 in that: multiple slide rods 207 are provided, and multiple slide rods 207 are respectively fixedly connected to two first crossbeams 201. The protective frame 10 is a polygonal structure corresponding to the number of slide rods 207. The protective frame 10 passes through the slide rods 207. When the bearing bracket 2 drives the tire 4 to stand up, multiple slide rods 207 on the same side as the upper hinge seat 203 contact the side of the tire 4 to prevent the tire 4 from slipping and improve the safety of the device.

[0057] In this embodiment 2, the pressing device 11 includes a pressing plate 1104, which spans the protective frame 10 and can completely press the protective frame 10 onto the upper surface of the tire 4. A pressing push rod 1105 is provided above the pressing plate 1104. The telescopic end of the pressing push rod 1105 is fixedly connected to the pressing plate 1104, and the mounting end is fixedly connected to the external fixing bracket.

[0058] The pressing push rod 1105 can be selected from hydraulic push rod, pneumatic push rod or electric push rod. The telescopic end of the pressing push rod 1105 extends and drives the pressing plate 1104 to move down, pressing the protective frame 10 onto the tire 4 to prevent the tire rim and other parts from popping out and injuring people during the inflation process. After inflation is completed, the telescopic rod retracts and drives the pressing plate 1104 to detach from the protective frame 10. The protective frame 10 can be removed and the tire 4 can be moved to the next process.

[0059] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. A tire inflation safety protection device, comprising a base bracket (1), a support bracket (2) hinged above the base bracket (1), a tire (4) placed above the support bracket (2), a plurality of sliding rods (207) provided on the upper surface of the support bracket (2), a protective frame (10) slidably provided on the plurality of sliding rods (207), and a pressing device (11) fixedly connected above the protective frame (10) for pressing the protective frame (10) onto the tire (4), characterized in that: The bearing bracket (2) comprises two first cross beams (201) and two second cross beams (202), the bearing bracket (2) is rotationally installed with a rotating roller assembly (8), the rotating roller assembly (8) comprises two third cross beams (801) parallel to the first cross beams (201), a plurality of rotating rollers (802) are rotationally installed between the two third cross beams (801), and the upper surface of the rotating roller (802) is higher than the upper surface of the third cross beam (801).

2. A tire inflation safety apparatus according to claim 1, wherein: The third cross beam (801) is rotationally installed with a rotating shaft assembly (9) at a position close to the two ends of the third cross beam (801) between the third cross beam (801) and the first cross beam (201), the rotating shaft assembly (9) comprises a connecting plate (901), the opposite two side faces of the two ends of the connecting plate (901) are fixedly connected with a first rotating shaft (902), respectively, the two first rotating shafts (902) are rotationally installed on the third cross beam (801) and the first cross beam (201), respectively, the rotating shaft assembly (9) drives the rotating roller assembly (8) to rotationally move on the bearing bracket (2), and the position switching of the rotating roller assembly (8) is realized.

3. A tire inflation safety guard according to claim 2, wherein: The bottom surface of the third cross beam (801) is fixedly connected with a lifting rod (803), the first cross beam (201) is provided with a locking buckle (205) below, the lifting rod (803) is clamped into the locking buckle (205) when moving upward, and the locking of the rotating roller assembly (8) at the lifting position is realized.

4. A tire inflation safety apparatus according to claim 3, wherein: The locking buckle (205) is in the shape of inverted U, the middle part of the locking buckle (205) is protruded outward, the inner diameter size is adapted to the outer diameter size of the lifting rod (803), the size of the opening at the lower end of the locking buckle (205) is smaller than the outer diameter size of the lifting rod (803), and the inner side of the locking buckle (205) is made of rubber.

5. A tire inflation safety apparatus according to claim 4, wherein: The bottom surface of one of the first cross beams (201) is fixedly connected with an upper hinge seat (203) at positions close to the two ends, respectively, the bottom bracket (1) is fixedly connected with two lower hinge seats (101) at positions corresponding to the upper hinge seats (203), and hinge shafts (5) are arranged through the corresponding upper hinge seat (203) and lower hinge seat (101).

6. A tire inflation safety apparatus according to claim 5, wherein: The two second cross beams (202) are provided with an intermediate cross beam (204), the intermediate cross beam (204) is arranged in parallel with the second cross beam (202) and is fixedly connected with the two first cross beams (201) at the two ends, respectively, the bottom bracket (1) and the bearing bracket (2) are provided with a lifting device (7), the fixed end of the lifting device (7) is hingedly connected to the bottom bracket (1), and the telescopic end is hingedly connected to the bottom surface of the intermediate cross beam (204).

7. A tire inflation safety apparatus according to claim 6, wherein: A supporting frame (6) is arranged on one side of the bottom surface of the bearing bracket (2) away from the upper hinge seat (203), the supporting frame (6) comprises a supporting seat (601) fixedly connected to the bottom surface of the first cross beam (201), a supporting rod (602) is threadedly connected to the supporting seat (601), a buffer block (603) is fixedly connected to the lower end of the supporting rod (602), and the buffer block (603) is in abutment with the upper surface of the bottom bracket (1).

8. A tire inflation safety apparatus according to claim 7, wherein: The end of the bearing bracket (2) is provided with a conveying mechanism (3), the width of the conveying mechanism (3) is greater than the diameter of the tire (4), the height of the one end of the conveying mechanism (3) is aligned with the height of the bearing bracket (2), and the other end is inclined downward and close to the ground height.

9. A tire inflation safety apparatus according to claim 8, wherein: The first cross beam (201) is fixedly connected with a supporting plate (206) at a position corresponding to the third cross beam (801).

Images