Rubber mat inflating valve

Abstract

The utility model discloses a rubber mat inflating valve, which relates to the technical field of inflating valves, and comprises a valve rod, a mounting rubber mat is fixedly arranged at the bottom end of the valve rod, a fixed seat is fixedly arranged in the middle of the inner side of the valve rod, a movable seat is arranged in the fixed seat through threads, a core rod is arranged in the movable seat in a penetrating manner, and a rubber mat is fixedly arranged on the mounting rubber mat. And the core rod is of a hollow structure. According to the rubber mat inflating valve structure, the valve rod and the mounting rubber mat are arranged, the valve rod and the mounting rubber mat form the rubber mat inflating valve structure, the movable seat is arranged in the valve rod, the core rod is arranged in the movable seat, and the movable seat and the core rod are mounted in the valve rod in a threaded mounting manner, so that the movable seat and the core rod are convenient to disassemble and replace; and the rubber sleeve is arranged at the bottom end of the core rod, the sealing effect of the device can be guaranteed through the arrangement of the rubber sleeve, the rubber sleeve can be replaced, and the maintenance cost is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air valves, in particular to a rubber cushion air valve. Background Art

[0002] The valve is a one-way valve used to inflate and discharge the gas in the tire and to maintain a stable air pressure in the tire. Nowadays, the tires used in automobiles are basically tubeless tires. The valve and the tire are separated from each other in structure, and the valve is installed on the rim. Since the compression valve has the advantages of not being easily oxidized, good air tightness, and reusable after disassembly and assembly, it has been widely used in tubeless tires. The compression valve includes a valve body, which includes a valve body rod and a valve body chassis that are set as an integral body.

[0003] The existing Chinese patent with announcement number CN204610997U discloses a compression type valve, which belongs to the technical field of valves, including a nozzle body, the nozzle body including a nozzle body rod and a nozzle body chassis which are set as one body, the nozzle body is provided with an air duct, the air duct runs through the entire nozzle body from the starting end face of the nozzle body chassis, and the air duct is provided with a wrench cavity extending from the starting end face of the nozzle body chassis to the inside for accommodating a wrench. During the assembly process of the utility model, a wrench that matches the shape of the wrench cavity is used to insert it into the wrench cavity to fix the nozzle body, so that the positioning is firm, not easy to be misplaced and slipped, the torque is qualified, and the structure is simple; and the wrench has a force arm, which makes the assembly labor-saving and convenient, and can be operated by one person; at the same time, the wrench is a standard tool, which is easy to buy in the market, not easy to be damaged, and convenient for users to use.

[0004] The valve in the above technical solution has some problems in actual use. The valve adopts an integral structure, and it is not easy to repair a single component when it is damaged. The valve and the tire need to be replaced at the same time, which is costly.

[0005] Therefore, it is necessary to invent a rubber cushion valve to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a rubber cushion air valve to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rubber cushion valve nozzle, including a valve stem, a mounting rubber cushion is fixedly provided at the bottom end of the valve stem, a fixing seat is fixedly provided at the inner middle part of the valve stem, a movable seat is provided inside the fixing seat through a thread, a core rod is penetrated inside the movable seat, and the core rod is provided with a hollow structure, a plurality of air inlet holes are arranged around the top end of the outer wall of the core rod, and the air inlet holes are arranged above the fixing seat, a plurality of air outlet holes are arranged around the bottom end of the outer wall of the core rod, a rubber sleeve is sleeved on the bottom end of the outer wall of the core rod, and the rubber sleeve is arranged on the outside of the air outlet, a sealing seat is arranged around the inner bottom end of the valve stem, and the position of the sealing seat corresponds to the air outlet, an annular convex rib is arranged around the bottom end of the outer wall of the core rod, and the annular convex rib corresponds to the top end of the inner wall of the rubber sleeve.

[0008] Preferably, a positioning block with a boss structure is fixedly provided at the bottom end of the core rod, a positioning plate is fixedly provided at the middle of the core rod, a spring is fixedly provided on the lower surface of the positioning plate, and the spring is provided above the sealing seat.

[0009] Preferably, a sealing gasket is provided between the positioning plate and the movable seat, a sealing ring is provided between the movable seat and the fixed seat, and a hexagonal convex block is fixedly provided on the upper surface of the movable seat.

[0010] Preferably, a pressure block is fixedly provided at the top end of the core rod, and an external thread is provided at the top end of the outer side wall of the valve stem.

[0011] Preferably, a limiting plate is sleeved on the outer side of the valve stem, and the limiting plate is configured as an annular structure. A positioning sleeve is fixedly disposed on the middle portion of the limiting plate, and the positioning sleeve is sleeved on the outer side of the valve stem.

[0012] Preferably, a plurality of deformation grooves are arranged around the top end of the outer wall of the positioning sleeve, and the top end of the outer wall of the positioning sleeve is arranged as a conical structure, and a locking nut is arranged on the outer side of the positioning sleeve through a thread.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model provides a valve stem and a mounting rubber pad, which form a rubber pad valve structure. A movable seat is provided inside the valve stem, a core rod is provided inside the movable seat, and the movable seat and the core rod are installed inside the valve stem by threaded installation, which facilitates the disassembly and replacement of the movable seat and the core rod to reduce maintenance costs. A rubber sleeve is provided at the bottom end of the core rod, and the setting of the rubber sleeve can ensure the sealing effect of the device, and the rubber sleeve can be replaced, which further reduces maintenance costs.

[0015] 2. The utility model arranges a sealing seat inside the valve stem. When inflating through the core rod, the core rod is squeezed by an inflating device such as an air cylinder and moves downward, causing the rubber sleeve to move to below the sealing seat. At this time, the rubber sleeve expands under the action of the gas to complete the inflation. After the inflation is completed, the core rod is reset under the action of the spring. At this time, the rubber sleeve slides to the inside of the sealing seat. At this time, the rubber sleeve and the sealing seat can achieve double sealing of the core rod to improve the sealing effect of the valve mouth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 It is a schematic cross-sectional view of the overall structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the limit plate structure of the utility model.

[0020] Figure 5 This is a schematic diagram of the core rod structure of the utility model.

[0021] In the figure: 1. valve stem; 2. mounting rubber pad; 3. fixed seat; 4. movable seat; 5. core rod; 6. air inlet; 7. air outlet; 8. rubber sleeve; 9. sealing seat; 10. annular rib; 11. positioning block; 12. positioning plate; 13. spring; 14. sealing pad; 15. sealing ring; 16. pressure block; 17. limit plate; 18. positioning sleeve; 19. deformation groove; 20. locking nut. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-5A rubber cushion valve shown in the figure comprises a valve stem 1, a mounting rubber cushion 2 is fixedly provided at the bottom end of the valve stem 1, a fixing seat 3 is fixedly provided at the inner middle part of the valve stem 1, a movable seat 4 is provided inside the fixing seat 3 through a thread, a core rod 5 is penetrated inside the movable seat 4, and the core rod 5 is arranged as a hollow structure, a plurality of air inlet holes 6 are arranged around the top end of the outer wall of the core rod 5, and the air inlet holes 6 are arranged above the fixing seat 3, a plurality of air outlet holes 7 are arranged around the bottom end of the outer wall of the core rod 5, a rubber sleeve 8 is sleeved on the bottom end of the outer wall of the core rod 5, and the rubber sleeve 8 is arranged on the outside of the air outlet holes 7, a sealing seat 9 is arranged around the inner bottom end of the valve stem 1, and the position of the sealing seat 9 corresponds to the air outlet holes 7, an annular convex rib 10 is arranged around the bottom end of the outer wall of the core rod 5, and the annular convex rib 10 corresponds to the top end of the inner wall of the rubber sleeve 8, and the provision of the annular convex rib 10 can improve the installation strength of the rubber sleeve 8;

[0024] Specifically, a positioning block 11 with a boss structure is fixedly provided at the bottom end of the core rod 5, a positioning plate 12 is fixedly provided at the middle of the core rod 5, a spring 13 is fixedly provided on the lower surface of the positioning plate 12, and the spring 13 is arranged above the sealing seat 9. The spring 13 applies an upward force to the core rod 5 to ensure that the rubber sleeve 8 can be inserted into the sealing seat 9, thereby ensuring the sealing effect of the device;

[0025] More specifically, a sealing gasket 14 is provided between the positioning plate 12 and the movable seat 4, a sealing ring 15 is provided between the movable seat 4 and the fixed seat 3, and a hexagonal convex block is fixedly provided on the upper surface of the movable seat 4. The setting of the convex block facilitates the use of tools to remove the movable seat 4, so as to facilitate the maintenance of the valve.

[0026] In addition, a pressure block 16 is fixedly provided at the top of the core rod 5, an external thread is provided at the top of the outer wall of the valve stem 1, and a limit plate 17 is provided on the outer side of the valve stem 1, and the limit plate 17 is provided in an annular structure. After the inner tube is installed on the wheel hub, the limit plate 17 can be installed on the outer side of the wheel hub to play an auxiliary positioning role for the valve stem 1;

[0027] Moreover, a positioning sleeve 18 is fixedly provided in the middle of the limit plate 17, and the positioning sleeve 18 is sleeved on the outside of the valve stem 1, a plurality of deformation grooves 19 are arranged around the top end of the outer wall of the positioning sleeve 18, and the top end of the outer wall of the positioning sleeve 18 is arranged as a conical structure, and a locking nut 20 is threadedly provided on the outside of the positioning sleeve 18. When the locking nut 20 slides on the outside of the positioning sleeve 18, the positioning sleeve 18 is squeezed and deformed inwardly, and clamped on the outside of the valve stem 1.

[0028] Working principle of this utility model:

[0029] When the device is in use, the installation rubber pad 2 is glued to the valve installation position of the tire by glue. When inflating, the connecting nozzle of the inflation device such as an air cylinder or an air pump is installed on the outer side of the valve stem 1, and the core rod 5 is squeezed to make the core rod 5 move downward, and the core rod 5 drives the rubber sleeve 8 to move downward, so that the rubber sleeve 8 moves to the bottom of the sealing seat 9. At this time, the gas enters the interior of the core rod 5 through the air inlet hole 6, and then opens the rubber sleeve 8 through the air outlet hole 7, and then the gas enters the inner tube through the rubber sleeve 8 to complete the inflation operation. After the inflation is completed, the connecting nozzle of the inflation device is removed. At this time, the core rod 5 is reset under the action of the spring 13. At this time, the rubber sleeve 8 follows the core rod 5 to move to the inner side of the sealing seat 9, and is slightly deformed under the squeezing of the sealing seat 9. At this time, the rubber sleeve 8 completely seals the gap between the air outlet hole 7 and the sealing seat 9 to ensure the sealing effect of the valve.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A rubber cushion air valve, comprising a valve stem (1), characterized in that: The bottom end of the valve stem (1) is fixedly provided with a mounting rubber pad (2), the inner middle part of the valve stem (1) is fixedly provided with a fixing seat (3), the interior of the fixing seat (3) is provided with a movable seat (4) through a thread, the interior of the movable seat (4) is provided with a core rod (5) penetrating therethrough, and the core rod (5) is provided with a hollow structure, the top end of the outer wall of the core rod (5) is surrounded by a plurality of air inlet holes (6), and the air inlet holes (6) are provided above the fixing seat (3), and the core rod ( The bottom end of the outer wall of the core rod (5) is surrounded by a plurality of air outlet holes (7); the bottom end of the outer wall of the core rod (5) is sleeved with a rubber sleeve (8), and the rubber sleeve (8) is arranged on the outside of the air outlet holes (7); the inner bottom end of the valve stem (1) is surrounded by a sealing seat (9), and the position of the sealing seat (9) corresponds to the air outlet holes (7); the bottom end of the outer wall of the core rod (5) is surrounded by an annular convex rib (10), and the annular convex rib (10) corresponds to the top end of the inner wall of the rubber sleeve (8).

2. The rubber cushion air valve according to claim 1, characterized in that: A positioning block (11) with a boss structure is fixedly provided at the bottom end of the core rod (5), a positioning plate (12) is fixedly provided at the middle of the core rod (5), a spring (13) is fixedly provided on the lower surface of the positioning plate (12), and the spring (13) is arranged above the sealing seat (9).

3. The rubber cushion valve according to claim 2, characterized in that: A sealing gasket (14) is provided between the positioning plate (12) and the movable seat (4), a sealing ring (15) is provided between the movable seat (4) and the fixed seat (3), and a hexagonal convex block is fixedly provided on the upper surface of the movable seat (4).

4. The rubber cushion air valve according to claim 3, characterized in that: A pressure block (16) is fixedly arranged at the top end of the core rod (5), and an external thread is arranged at the top end of the outer wall of the valve stem (1).

5. The rubber cushion air valve according to claim 4, characterized in that: A limiting plate (17) is sleeved on the outer side of the valve stem (1), and the limiting plate (17) is arranged in an annular structure. A positioning sleeve (18) is fixedly arranged in the middle of the limiting plate (17), and the positioning sleeve (18) is sleeved on the outer side of the valve stem (1).

6. The rubber cushion air valve according to claim 5, characterized in that: A plurality of deformation grooves (19) are arranged around the top end of the outer wall of the positioning sleeve (18), and the top end of the outer wall of the positioning sleeve (18) is arranged as a conical structure. A locking nut (20) is arranged on the outer side of the positioning sleeve (18) through a thread.

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