Multi-size adaptive valve core mounting structure

Abstract

The utility model provides a multi-size adaptive valve core mounting structure which comprises a shell, a sealing head used in cooperation with the inner wall of an inflating valve is arranged on the outer wall of the bottom of the shell, a sealing assembly used for sealing the inner wall of the shell is further arranged in the shell, and the sealing assembly comprises a slope ring, a first sealing plate and a second sealing plate. The slope ring is fixedly connected to the inner wall of the shell, the inner wall of the first sealing plate is in sliding fit with an ejector rod, one end of the ejector rod is fixedly connected with the second sealing plate, and the opposite sides of the first sealing plate and the second sealing plate are fixedly connected with a flexible sealing ring; by arranging the first sealing plate, the flexible sealing ring and the second sealing plate, when air flow in the tire is sufficient, the flexible sealing ring is attached to the inner wall of the slope ring more tightly, so that different sealing effects under different air pressures are achieved, air flow leakage is effectively prevented, and it is ensured that the tire works stably.

Description

Technical Field

[0001] The utility model relates to the field of valve cores, in particular to a multi-size adaptive valve core installation structure. Background Art

[0002] The valve core is a key control component, mainly used for tire air intake and maintaining a seal to prevent air leakage. It plays an important role in bicycles, cars and other items that need to be inflated. Its design is simple and efficient. Through a one-way valve mechanism, air can only enter the tire under pressure and cannot escape, thus ensuring the inflation state of the tire and the safety of vehicle driving.

[0003] As an important component of the tire, the valve core is mainly responsible for the tire's air intake and maintaining a seal to prevent air leakage. However, some existing valve core designs do not support automatic adjustment of the sealing degree according to changes in tire pressure, which may cause the tire to leak or be under-inflated when the air pressure is uneven or changing.

[0004] To this end, the present novel example proposes a multi-size adaptable valve core installation structure. Utility Model Content

[0005] In view of this, the embodiments of the present invention hope to provide a multi-size adaptive valve core installation structure to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the utility model is achieved as follows: a multi-size adaptive valve core installation structure, including an outer shell, the bottom outer wall of the outer shell is provided with a sealing head used in conjunction with the inner wall of the valve mouth, and a sealing assembly for sealing the inner wall of the outer shell is also provided in the outer shell, the sealing assembly includes a bevel ring, a sealing plate 1 and a sealing plate 2, the bevel ring is fixedly connected to the inner wall of the outer shell, the inner wall of the sealing plate 1 is slidably matched with a push rod, one end of the push rod is fixedly connected to the sealing plate 2, and a flexible sealing ring is fixedly connected to the opposite side of the sealing plate 1 and the sealing plate 2.

[0007] In some embodiments, the push rod is slidably fitted to the inner wall of the shell, and the other end of the push rod is fixedly connected to a pressure plate, and a spring is sleeved on the outer wall of the push rod, and the spring is buckled on the opposite side of the shell and the pressure plate.

[0008] In some embodiments, a plurality of through holes are formed on an inner wall of the housing away from the sealing head.

[0009] In some embodiments, an airflow splitter component is also disposed inside the housing.

[0010] In some embodiments, the airflow splitter assembly includes a plurality of staggered inclined plates 1 and 2, and the inclined plates 1 and 2 are both fixedly connected to the inner wall of the shell.

[0011] In some embodiments, the length of the inclined plate 1 is longer than that of the inclined plate 2, and an air outlet channel is formed between the inclined plate 1 and the inclined plate 2.

[0012] In some embodiments, the sealing head includes a rubber seat and a plurality of annular steps, and the rubber seat and the annular steps are both fixedly connected to the outer wall of the housing.

[0013] In some embodiments, the radius of the annular step decreases from top to bottom, and the outer wall of the annular step is provided with a plurality of annular grooves which are interference fit with the inner wall of the valve.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. A multi-size adaptive valve core installation structure, by setting a sealing plate 1, a flexible sealing ring and a sealing plate 2, when the airflow in the tire is sufficient, the flexible sealing ring and the inner wall of the bevel ring fit tighter, thereby achieving different sealing effects under different air pressures, effectively preventing airflow leakage, and ensuring tire stability.

[0016] 2. A multi-size adaptive valve core installation structure can achieve the diversion effect of airflow by setting inclined plate 1, inclined plate 2 and an air outlet channel, thereby reducing the airflow velocity, avoiding large-scale gas leakage, and further improving the sealing of the device.

[0017] 3. A multi-size adaptive valve core installation structure, by setting a rubber seat, an annular step and an annular groove, and utilizing the cooperation and shrinkage of the three, the device can be installed with valves of different sizes, thereby improving the flexibility of the device, and the sealing of the device can be ensured again by interference fit.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the main structural diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a schematic diagram of the airflow direction of the utility model.

[0023] Reference numerals:

[0024] 1. Shell; 2. Pressure plate; 3. Push rod; 4. Spring; 5. Bevel ring; 6. Sealing plate 1; 7. Through hole; 8. Air flow diversion assembly; 9. Flexible sealing ring; 10. Sealing plate 2; 11. Sealing head; 12. Inclined plate 1; 13. Inclined plate 2; 14. Air outlet channel; 15. Rubber seat; 16. Annular step; 17. Annular groove. DETAILED DESCRIPTION

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0026] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings. Example 1

[0028] like Figure 1-3 As shown, a multi-size adaptable valve core installation structure includes a housing 1.

[0029] The outer wall at the bottom of the shell 1 is provided with a sealing head 11 used in conjunction with the inner wall of the valve, and a sealing assembly for sealing the inner wall of the shell 1 is also provided inside the shell 1, the sealing assembly includes a bevel ring 5, a sealing plate 6 and a sealing plate 2 10, the bevel ring 5 is fixedly connected to the inner wall of the shell 1, the inner wall of the sealing plate 1 6 is slidably fitted with a push rod 3, one end of the push rod 3 is fixedly connected to the sealing plate 2 10, and a flexible sealing ring 9 is fixedly connected to the opposite side of the sealing plate 1 6 and the sealing plate 2 10.

[0030] After the valve core is installed in the valve stem, the airflow in the tire enters into the outer shell 1 and pushes the sealing plate 1 6, the flexible sealing ring 9 and the sealing plate 2 10 to the bevel ring 5. When the sealing plate 1 6 fits with the inner wall of the bevel ring 5, the sealing plate 1 6 is blocked by the bevel ring 5 and stops moving, and the sealing plate 2 10 continues to move under the continuous push of the airflow. As a result, the flexible sealing ring 9 is deformed under the extrusion of the sealing plates 1 6 and 2 10, and fits tightly with the inner wall of the bevel ring 5, thereby achieving sealing of the inner wall of the outer shell 1. The higher the air pressure in the tire, the better the sealing effect.

[0031] The device is provided with a sealing plate 1 6, a flexible sealing ring 9 and a sealing plate 2 10. When the airflow in the tire is sufficient, the flexible sealing ring 9 and the inner wall of the bevel ring 5 fit more tightly, thereby achieving different sealing effects under different air pressures, effectively preventing airflow leakage and ensuring the stability of the tire.

[0032] like Figure 2 As shown, the push rod 3 is slidably matched with the inner wall of the shell 1, and the other end of the push rod 3 is fixedly connected to the pressure plate 2. The outer wall of the push rod 3 is sleeved with a spring 4, and the spring 4 is buckled on the opposite side of the shell 1 and the pressure plate 2.

[0033] A plurality of through holes 7 are formed on the inner wall of the housing 1 at a side away from the sealing head 11 .

[0034] The spring 4 can be used to ensure that when the air pressure in the tire is low, the sealing plate 6 can still fit the inner wall of the bevel ring 5 to achieve sealing. When the air pressure in the tire increases, air flows into the outer shell 1, pushing the sealing plate 2 10 to squeeze the flexible sealing ring 9 to achieve further sealing. At this time, the spring 4 is in a stretched state. When the tire needs to be inflated, the pressure plate 2 is pressed, and the spring 4 is forced to shrink. The push rod 3 drives the sealing plate 1 6, the flexible sealing ring 9 and the sealing head 11 to separate from the bevel ring 5. At this time, there is a gap between the bevel ring 5 and the sealing plate 1 6, the flexible sealing ring 9 and the sealing plate 2 10. The external airflow can enter the outer shell 1 through the through hole 7, and then enter the tire through the outer shell 1. After inflation is completed, the pressure plate 2 is released, and the spring 4 uses its own elasticity to drive the sealing plate 1 6, the flexible sealing ring 9 and the sealing plate 2 10 to move to achieve sealing.

[0035] like Figure 2 , 3As shown, an airflow splitter assembly 8 is also provided inside the shell 1 , and the airflow splitter assembly 8 includes a plurality of staggered inclined plates 12 and inclined plates 2 13 , and the inclined plates 1 12 and inclined plates 2 13 are both fixedly connected to the inner wall of the shell 1 .

[0036] The length of the inclined plate 1 12 is longer than that of the inclined plate 2 13 , and an air outlet channel 14 is formed between the inclined plate 1 12 and the inclined plate 2 13 .

[0037] When the airflow is transported from the through hole 7 to the inside of the shell 1, it is not affected by the inclined plate 1 12, the inclined plate 2 13 and the air outlet channel 14, and will flow directly into the tire. When the airflow is transported from the inside of the tire to the outside, the airflow will be split through the air outlet channel 14. One part of the main airflow is directly output through the through hole 7, and the other part of the branch airflow passes through the air outlet channel 14 and then mixes with the main airflow, thereby losing some kinetic energy, reducing the flow rate of the airflow, and avoiding a large amount of airflow leakage.

[0038] The device can achieve the function of diverting the airflow by providing the inclined plate 12, the inclined plate 2 13 and the air outlet channel 14, thereby reducing the airflow velocity, avoiding a large amount of gas leakage, and further improving the sealing performance of the device. Example 2

[0039] A multi-size adaptable valve core installation structure, this embodiment makes the following improvements on the basis of embodiment 1, such as Figure 1-3 As shown:

[0040] The sealing head 11 includes a rubber seat 15 and a plurality of annular steps 16. The rubber seat 15 and the annular step 16 are both fixedly connected to the outer wall of the housing 1. The radius of the annular step 16 decreases from top to bottom, and the outer wall of the annular step 16 is provided with a plurality of annular grooves 17 which are interference fit with the inner wall of the valve.

[0041] After the device is placed in the valve, the device can be installed with valves of various inner diameters by using the cooperation and contraction between the rubber seat 15, the annular step 16 and the annular groove 17. The annular step 16 is made of a deformable flexible material.

[0042] The device is provided with a rubber seat 15, annular step 16 and annular groove 17, and the device can be installed with valves of different sizes by utilizing the cooperation and contraction of the three, thereby improving the flexibility of the device, and the sealing of the device can be ensured again by means of interference fit.

[0043] Working principle: When using the device, first place the device as a whole in the valve stem on the wheel hub, and use the rubber seat 15, the annular step 16 and the annular groove 17 to fit tightly with the inner wall of the valve stem. In normal use, the spring 4 can ensure that when the air pressure in the tire is low, the sealing plate 1 6 can still fit with the inner wall of the bevel ring 5 to achieve sealing. When the air pressure in the tire increases, the airflow entering the shell 1 can push the sealing plate 2 10 to squeeze the flexible sealing ring 9 to achieve further sealing. At this time, the spring 4 is in a stretched state. When When it is necessary to inflate the tire, press the pressure plate 2, the spring 4 is forced to shrink, and the push rod 3 drives the sealing plate 1 6, the flexible sealing ring 9 and the sealing head 11 to separate from the bevel ring 5. At this time, there is a gap between the bevel ring 5 and the sealing plate 1 6, the flexible sealing ring 9 and the sealing plate 2 10. The external airflow can enter the shell 1 through the through hole 7, and then enter the tire through the shell 1. After the inflation is completed, release the pressure plate 2, and the spring 4 uses its own elasticity to drive the sealing plate 1 6, the flexible sealing ring 9 and the sealing plate 2 10 to move and reset to avoid air leakage.

[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A multi-size adaptable valve core mounting structure, comprising a housing (1), characterized in that: The outer wall at the bottom of the housing (1) is provided with a sealing head (11) for use with the inner wall of the valve, and a sealing assembly for sealing the inner wall of the housing (1) is also provided inside the housing (1), the sealing assembly comprising a bevel ring (5), a sealing plate 1 (6) and a sealing plate 2 (10), the bevel ring (5) being fixedly connected to the inner wall of the housing (1), the inner wall of the sealing plate 1 (6) being slidably fitted with a push rod (3), one end of the push rod (3) being fixedly connected to the sealing plate 2 (10), and a flexible sealing ring (9) being fixedly connected to the opposite side of the sealing plate 1 (6) and the sealing plate 2 (10).

2. The multi-size adaptable valve core installation structure according to claim 1, characterized in that: The push rod (3) is slidably fitted on the inner wall of the outer shell (1), and the other end of the push rod (3) is fixedly connected to the pressure plate (2). The outer wall of the push rod (3) is sleeved with a spring (4), and the spring (4) is buckled on the opposite side of the outer shell (1) and the pressure plate (2).

3. The multi-size adaptable valve core installation structure according to claim 2, characterized in that: A plurality of through holes (7) are formed on the inner wall of the housing (1) at a side away from the sealing head (11).

4. The multi-size adaptable valve core installation structure according to claim 1, characterized in that: An airflow splitter component (8) is also provided inside the housing (1).

5. The multi-size adaptable valve core installation structure according to claim 4, characterized in that: The airflow splitter assembly (8) comprises a plurality of inclined plates 1 (12) and inclined plates 2 (13) arranged in a staggered manner, wherein the inclined plates 1 (12) and inclined plates 2 (13) are both fixedly connected to the inner wall of the outer shell (1).

6. The multi-size adaptable valve core installation structure according to claim 5, characterized in that: The length of the inclined plate 1 (12) is longer than the length of the inclined plate 2 (13), and an air outlet channel (14) is formed between the inclined plate 1 (12) and the inclined plate 2 (13).

7. The multi-size adaptable valve core installation structure according to claim 1, characterized in that: The sealing head (11) comprises a rubber seat (15) and a plurality of annular steps (16); the rubber seat (15) and the annular steps (16) are both fixedly connected to the outer wall of the housing (1).

8. The multi-size adaptable valve core installation structure according to claim 7, characterized in that: The radius of the annular step (16) decreases from top to bottom, and the outer wall of the annular step (16) is provided with a plurality of annular grooves (17) which are interference-fitted with the inner wall of the valve.

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