Automobile tire pressure difference balancing device

Abstract

The utility model provides an automobile tire pressure difference balancing device, and belongs to the technical field of automobile wheels. Comprising a hub, the hub comprises a first air chamber and a second air chamber, a mounting seat is arranged on the inner wall of the hub, a horizontal table is fixedly mounted on one side of the mounting seat, and two communicating air chambers and a horizontal air chamber are arranged in the horizontal table; the two sets of communicating air chambers are used for communicating the first air chamber with the horizontal air chamber and communicating the second air chamber with the horizontal air chamber respectively, a blocking barrel is arranged in the horizontal air chamber in a sliding mode, an air hole used for communicating the horizontal air chamber is formed in the axis of the blocking barrel, and plugs are arranged at the two ends of the horizontal air chamber; and springs are fixedly mounted at the two ends of the horizontal air chamber. The tire has the advantages that the problem that the service life of the tire is shortened due to eccentric wear of the tire caused by different air pressures of the air chambers on the two sides of the double-air-chamber tire is solved, and meanwhile, the first air chamber and the second air chamber are communicated and do not need to be inflated respectively.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile wheels, and in particular relates to an automobile tire pressure difference balancing device. Background Art

[0002] Once a gas leak occurs in the tires currently used, it will affect the normal driving of the vehicle and the tires need to be replaced immediately, otherwise the vehicle will not be able to continue to operate. If a tire blows out while driving at high speed, it will also cause a serious traffic accident and endanger the safety of the vehicle and personnel. Currently, dual-chamber tires are an effective way to solve this problem. By setting up two sets of separately inflated air chambers in the tire, when one set of air chambers leaks, the other set of air chambers can provide support, avoiding loss of directional control due to a tire blowout.

[0003] However, dual-chamber tires are prone to problems such as different air pressures in the air chambers on both sides, which leads to uneven tire wear and shortened tire life. In addition, the two air chambers of the tire need to be inflated separately. In order to solve these problems, we propose a vehicle tire pressure difference balancing device. Utility Model Content

[0004] The technical problem to be solved by the utility model is that dual-chamber tires are prone to uneven wear of the tires due to different air pressures in the air chambers on both sides. In addition, the two air chambers of the tire need to be inflated separately. In view of the deficiencies of the prior art, a pressure differential balancing device for automobile tires is provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] It includes a wheel hub, which includes a first air chamber and a second air chamber. A mounting seat is provided on the inner wall of the wheel hub, a flat horizontal platform is fixedly installed on one side of the mounting seat, two groups of communicating air chambers and one group of flat horizontal air chambers are provided inside the flat horizontal platform, and the two groups of communicating air chambers are respectively used to connect the first air chamber and the flat horizontal air chamber, and the second air chamber and the flat horizontal air chamber, a resistance cylinder is slidably provided inside the flat horizontal air chamber, and an air hole for connecting the flat horizontal air chamber is provided on the axis of the resistance cylinder, plugs are provided at both ends of the flat horizontal air chamber, and springs are fixedly installed at both ends of the flat horizontal air chamber, and the springs are installed at both ends of the resistance cylinder.

[0007] Furthermore, a valve is provided on one side of the wheel hub, and the valve is communicated with the first air chamber.

[0008] Furthermore, piston heads are fixedly installed at both ends of the resistance tube, and the piston head is installed at one end of the spring. A groove is provided on one side of the piston head, and the groove is used to improve the air tightness of the resistance tube. Both ends of the air hole pass through the two groups of piston heads.

[0009] Furthermore, a plug expansion slot is provided on one side of the flat horizontal platform, a control rod is provided inside the plug expansion slot, one end of the control rod is fixedly connected to one group of the plugs, a sealing member is provided on the surface of the control rod close to the other end, one end of the sealing member is fixedly connected to a rotary control head, a threaded groove is provided on one side of the flat horizontal platform, and the threaded groove is threadedly connected to the rotary control head.

[0010] Furthermore, one side of the flat horizontal platform is an inclined surface, and the inclined surface of the flat horizontal platform is fixedly connected to a valve core platform. Two groups of connecting cavities are arranged inside the valve core platform, and the two groups of connecting cavities are respectively connected to the two groups of connecting air chambers. A valve core is arranged inside the valve core platform, and an inflation valve nozzle is installed outside the valve core platform.

[0011] Furthermore, the valve core includes a sealing frame, a valve core spring is fixedly installed inside the sealing frame, a valve core rod is fixedly installed on one end of the valve core spring, one end of the valve core rod passes through the bottom of the sealing frame and is fixedly installed with a sealing disk, one end of the valve core rod is fixedly connected to a linkage rod, and an air core rod is arranged on the top of the linkage rod, and the air core rod penetrates into the interior of the inflation valve mouth.

[0012] Furthermore, the inner thread of the inflation valve nozzle is connected to a limited slider, a sliding hole is provided inside the limited slider, and the air core rod is slidably connected to the inside of the sliding hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. While retaining the advantage of the dual-chamber tire that one side can be supported when the tire blew, the device uses the characteristic of rapid loss of air pressure on the side of the blew tire to make the gas on the high-pressure side push the blocking tube to close. When the air pressure of the air chambers on both sides changes, the gas is connected through the air holes to balance the pressure. The device avoids the problem of uneven wear of the tire and shortened tire life caused by different air pressures on both sides of the dual-chamber tire. At the same time, because the first air chamber and the second air chamber are connected, the two air chambers of the tire do not need to be inflated separately.

[0015] 2. When inflating, the rotary control head is rotated, and the rotary control head drives the control rod to move, and the control rod drives the plug to move, so that the plug is retracted into the plug expansion groove. At this time, the first air chamber and the second air chamber are always connected, which can increase the inflation speed and keep a higher pressure in the two air chambers.

[0016] 3. Connect the inflation device to the inflation valve nozzle, open the valve core, and the gas with a certain pressure passes through the two groups of connecting cavities to inflate the two air chambers separately. After the inflation is completed, the valve core returns to the closed state to avoid gas leakage. The two groups of air chambers can be inflated separately at a faster speed; BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] Figure 1 : A schematic diagram of the three-dimensional structure of the wheel hub in Embodiment 1 of the present utility model;

[0019] Figure 2 : A schematic diagram of the three-dimensional structure of the flat horizontal platform in Example 1 of the utility model;

[0020] Figure 3 : A schematic diagram of the structure of a cross-section of the flat platform in Example 1 of the utility model;

[0021] Figure 4 : A schematic diagram of the structure of a vertical cross-section of the flat platform in Embodiment 2 of the present utility model;

[0022] Figure 5 : A schematic diagram of the structure of a horizontal cross-section of the flat platform in Example 2 of the utility model;

[0023] Figure 6 : A schematic diagram of the structure of the decomposed flat platform in Embodiment 2 of the present utility model;

[0024] Figure 7 : A schematic structural diagram of a cross-section of the valve core in Example 2 of the present utility model.

[0025] Among them, 10, wheel hub; 11, first air chamber; 12, second air chamber; 13, valve nozzle; 20, mounting seat; 21, flat horizontal platform; 22, connecting air chamber; 23, flat horizontal air chamber; 24, resistance tube; 241, piston head; 242, slot; 25, air hole; 26, plug; 27, spring; 30, plug expansion slot; 31, control rod; 32, seal; 33, rotary control head; 34, threaded groove; 40, valve core platform; 41, connecting cavity; 42, inflation valve nozzle; 50, valve core; 51, sealing frame; 52, valve core spring; 53, valve core rod; 54, sealing disk; 55, linkage rod; 56, air core rod; 57, limit slider; 58, sliding hole. DETAILED DESCRIPTION

[0026] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0027] Example 1: See Figure 1-3The present embodiment is a vehicle tire pressure difference balancing device, which includes a wheel hub 10, the wheel hub 10 includes a first air chamber 11 and a second air chamber 12, a valve 13 is arranged on one side of the wheel hub 10, and the valve 13 is connected to the first air chamber 11, and a mounting seat 20 is arranged on the inner wall of the wheel hub 10, and a flat horizontal platform 21 is fixedly installed on one side of the mounting seat 20, and two groups of communicating air chambers 22 and a group of flat horizontal air chambers 23 are arranged inside the flat horizontal platform 21, and the two groups of communicating air chambers 22 are respectively used to connect the first air chamber 11 with one end of the flat horizontal air chamber 23, and the second air chamber 12 with the other end of the flat horizontal air chamber 23. When the air pressure on one side of the dual-chamber tire is higher, the pressure on the side where the air chamber on the side with the higher air pressure is connected to the flat horizontal air chamber 23 is higher, and the internal sliding arrangement of the flat horizontal air chamber 23 There is a resistance cylinder 24, and the air pressure pushes the resistance cylinder 24 to move. The axis of the resistance cylinder 24 is provided with an air hole 25 for connecting with the horizontal air chamber 23. When the air pressure on both sides is unbalanced, the gas enters the side of the horizontal air chamber 23 with smaller pressure through the air hole 25, so that the air pressure on both sides is balanced. Plugs 26 are provided at both ends of the horizontal air chamber 23. When the pressure on one side of the double-chamber tire is quickly lost due to a tire burst or air leakage, the gas inside the air chamber on the side that retains the pressure expands and pushes the resistance cylinder 24 to move, so that the plug 26 is inserted into the air hole 25, so that the first air chamber and the second air chamber are isolated. Springs 27 are fixedly installed at both ends of the horizontal air chamber 23. The springs 27 are installed. After the air pressure on both ends of the resistance cylinder 24 is balanced, the resistance cylinder 24 is driven to return to its original position under the restoring force of the springs 27.

[0028] See also Figure 3 The two ends of the blocking cylinder 24 are fixedly mounted with piston heads 241, which are made of elastic material and mounted on one end of the spring 27. A slot 242 is provided on one side of the piston head 241, which is used to improve the air tightness of the blocking cylinder 24. The two ends of the air hole 25 penetrate the two groups of piston heads 241, and the air pressure expands to push the piston head 241, and the air pressure enters the slot 242, so that the sealing performance of the piston head 241 is improved to avoid air leakage.

[0029] See also Figure 3When the dual-chamber tire is inflated, the rapidly increasing air pressure can easily cause the resistance cylinder 24 to move and the plug 26 to block the air hole, so that the air chamber 12 away from the valve mouth 13 side cannot be inflated, and it can only be inflated at a slower speed; a plug expansion groove 30 is provided on one side of the horizontal platform 21, and a control rod 31 is provided inside the plug expansion groove 30, one end of the control rod 31 is fixedly connected to one group of plugs 26, and a sealing member 32 is provided on the surface of the control rod 31 near the other end, and a rotary control head 33 is fixedly connected to one end of the seal 32, and a threaded groove 34 is provided on one side of the horizontal platform 21, and the threaded groove 34 is threadedly connected to the rotary control head 33. At this time, the rotary control head 33 is rotated, and the rotary control head 33 drives the control rod 31 to move, and the control rod 31 drives the plug 26 to move, so that the plug 26 is retracted into the plug expansion groove 30. At this time, the first air chamber 11 and the second air chamber 12 are always kept in a connected state, which can increase the inflation speed and keep the two air chambers at a higher pressure.

[0030] Beneficial effects:

[0031] 1. When the air pressure on one side of the dual-chamber tire is higher, the pressure on the side of the air chamber with higher pressure connected to the horizontal air chamber 23 is higher, and the air pressure pushes the blocking cylinder 24 to move. At the same time, the gas enters the side with lower pressure of the horizontal air chamber 23 through the air hole 25, so that the air pressure on both sides is balanced. Under the restoring force of the spring 27, the blocking cylinder 24 is driven to return to its original position. When the pressure on one side of the dual-chamber tire is lost quickly due to a puncture or air leakage, the gas inside the air chamber on the side with retained pressure expands and pushes the blocking cylinder 24 to move, so that the plug 26 is inserted into the air hole 25. The first air chamber and the second air chamber are isolated from each other. While retaining the advantage that a tire on one side of the dual air chamber can be over-supported if the other side is flat, the device utilizes the characteristic of rapid loss of air pressure on the flat tire side to allow the gas on the high-pressure side to push the resistance tube 24 to close. When the air pressure of the air chambers on both sides changes, the gas is connected through the air hole 25 to balance the pressure. The device avoids the problem of uneven wear of the tire and shortened tire life caused by different air pressures in the air chambers on both sides of the dual air chamber tire. At the same time, because the first air chamber 11 and the second air chamber 12 are connected, the two air chambers of the tire do not need to be inflated separately.

[0032] 2. When the dual-chamber tire is inflated, the rapidly increasing air pressure can easily cause the resistance tube 24 to move and the plug 26 to block the air hole, making it impossible to inflate the air chamber 12 on the side away from the valve mouth 13. The tire can only be inflated at a slower speed. At this time, the rotary control head 33 is rotated, and the rotary control head 33 drives the control rod 31 to move, and the control rod 31 drives the plug 26 to move, so that the plug 26 is retracted into the plug expansion groove 30. At this time, the first air chamber 11 and the second air chamber 12 are always kept in a connected state, which can increase the inflation speed and keep a higher pressure in the two air chambers.

[0033] In Example 1, the two air chambers are kept connected and inflated by rotating the rotary control head 33. However, rotating the rotary control head 33 requires the use of additional tools and requires the operator to have a certain understanding of its principle. Therefore, we propose Example 2 to inflate the two air chambers separately:

[0034] Embodiment 2: Embodiment 2 is a further improvement made on the basis of Embodiment 1, see Figure 4-7 In the embodiment of the present invention, a pressure differential balancing device for automobile tires is provided. One side of the horizontal platform 21 is an inclined surface. The inclined surface of the horizontal platform 21 is fixedly connected with a valve core platform 40. Two groups of connecting cavities 41 are arranged inside the valve core platform 40. The two groups of connecting cavities 41 are respectively connected with the two groups of connecting air chambers 22. A valve core 50 is arranged inside the valve core platform 40. An inflation valve nozzle 42 is installed outside the valve core platform 40. The external inflation device is connected to the inflation valve nozzle 42 to open the valve core 50. Gas with a certain pressure enters the connecting air chamber 22 through the two groups of connecting cavities 41, and then enters the first air chamber 11 and the second air chamber 12 for inflation respectively. After the inflation is completed, the valve core 50 returns to a closed state to avoid gas leakage.

[0035] See also Figure 6-7 The valve core 50 includes a sealing frame 51, and a notch for inflation is arranged in the sealing frame 51. A valve core spring 52 is fixedly installed inside the sealing frame 51, and a valve core rod 53 is fixedly installed at one end of the valve core spring 52. One end of the valve core rod 53 passes through the bottom of the sealing frame 51 and is fixedly installed with a sealing disk 54. One end of the valve core rod 53 is fixedly connected to a linkage rod 55, and a gas core rod 56 is arranged on the top of the linkage rod 55. The gas core rod 56 penetrates into the interior of the inflation valve nozzle 42. When the external inflation device is connected to the inflation valve nozzle 42, the gas core rod 56 is pushed to move. The movement of the gas core rod 56 drives the linkage rod 55 to move. The linkage rod 55 drives the two groups of valve core rods 53 to move at the same time and compresses the valve core spring 52. The movement of the valve core rod 53 drives the sealing disk 54 to move. After the sealing disk 54 moves, it no longer covers the notch of the sealing frame 51, so that the valve core 50 is opened.

[0036] See also Figure 6-7 The internal thread of the inflation valve nozzle 42 is connected to the limited slider 57, and a sliding hole 58 is provided inside the limited slider 57. The air core rod 56 is slidably connected to the inside of the sliding hole 58. The limited slider 57 limits the moving trajectory of the air core rod 56 to prevent the air core rod 56 from tilting and causing damage to the valve core 50.

[0037] Beneficial Effects

[0038] 1. In Example 1, the two air chambers are kept connected and inflated by rotating the rotary control head 33. However, rotating the rotary control head 33 requires the use of additional tools and the operator needs to have a certain understanding of its principle. For this reason, we propose another method to inflate the two air chambers separately. The inflation device is connected to the inflation valve nozzle 42, so that the valve core 50 is opened, and the gas with a certain pressure passes through the two groups of connecting cavities to inflate the two air chambers separately. After the inflation is completed, the valve core 50 returns to the closed state to avoid gas leakage. Compared with Example 1, the two groups of air chambers can be inflated separately at a faster speed, and the operation is simple.

[0039] 2. Release the installation of the inflation valve nozzle 42 and the valve core platform 40 so that both the inflation valve nozzle 42 and the valve core 50 can be removed for replacement, thereby improving the maintainability of the device.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle tire pressure differential balancing device, comprising a wheel hub (10), wherein the wheel hub (10) comprises a first air chamber (11) and a second air chamber (12), wherein: The inner wall of the wheel hub (10) is provided with a mounting seat (20), a flat platform (21) is fixedly mounted on one side of the mounting seat (20), two groups of communicating air chambers (22) and one group of flat air chambers (23) are arranged inside the flat platform (21), the two groups of communicating air chambers (22) are respectively used to connect the first air chamber (11) with one end of the flat air chamber (23), and are used to connect the second air chamber (12) with the other end of the flat air chamber (23), a blocking cylinder (24) is slidably arranged inside the flat air chamber (23), an air hole (25) for connecting the two sides of the flat air chamber (23) is arranged on the axis of the blocking cylinder (24), plugs (26) are arranged at both ends of the flat air chamber (23), springs (27) are fixedly mounted at both ends of the flat air chamber (23), and the springs (27) are mounted on both ends of the blocking cylinder (24).

2. The automobile tire pressure differential balancing device according to claim 1, characterized in that: A valve nozzle (13) is provided on one side of the wheel hub (10), and the valve nozzle (13) is in communication with the first air chamber (11).

3. The automobile tire pressure differential balancing device according to claim 1, characterized in that: Piston heads (241) are fixedly mounted at both ends of the blocking cylinder (24), the piston head (241) being mounted on one end of the spring (27), a slot (242) being provided on one side of the piston head (241), the slot (242) being used to improve the air tightness of the blocking cylinder (24), and both ends of the air hole (25) passing through the two groups of piston heads (241).

4. The automobile tire pressure differential balancing device according to any one of claims 1 to 3, characterized in that: A plug expansion slot (30) is provided on one side of the flat horizontal platform (21), a control rod (31) is provided inside the plug expansion slot (30), one end of the control rod (31) is fixedly connected to one group of the plugs (26), a sealing member (32) is provided on a surface of the control rod (31) close to the other end, one end of the sealing member (32) is fixedly connected to a rotary control head (33), and a threaded groove (34) is provided on one side of the flat horizontal platform (21), the threaded groove (34) is threadedly connected to the rotary control head (33).

5. The automobile tire pressure differential balancing device according to claim 1, characterized in that: One side of the flat horizontal platform (21) is an inclined surface, and the inclined surface of the flat horizontal platform (21) is fixedly connected to a valve core platform (40), and two groups of communication cavities (41) are arranged inside the valve core platform (40), and the two groups of communication cavities (41) are respectively connected to the two groups of communication air chambers (22), and a valve core (50) is arranged inside the valve core platform (40), and an inflation valve nozzle (42) is installed outside the valve core platform (40).

6. The automobile tire pressure differential balancing device according to claim 5, characterized in that: The valve core (50) comprises a sealing frame (51), a valve core spring (52) is fixedly mounted inside the sealing frame (51), a valve core rod (53) is fixedly mounted on one end of the valve core spring (52), one end of the valve core rod (53) passes through the bottom of the sealing frame (51) and is fixedly mounted with a sealing disk (54), one end of the valve core rod (53) is fixedly connected to a linkage rod (55), a gas core rod (56) is arranged on the top of the linkage rod (55), and the gas core rod (56) penetrates into the interior of the inflation valve nozzle (42).

7. The automobile tire pressure differential balancing device according to claim 6, characterized in that: The inner thread of the inflation valve nozzle (42) is connected to a limited slider (57), a sliding hole (58) is provided inside the limited slider (57), and the air core rod (56) is slidably connected to the inside of the sliding hole (58).

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