Tubeless inflating valve

Abstract

The utility model discloses a tubeless inflating valve, which relates to the technical field of inflating valves, and comprises a valve rod, a fixed seat is fixedly arranged at the bottom end of the valve rod, a sealing sleeve is arranged above the fixed seat, the sealing sleeve is sleeved on the outer side of the valve rod, and the sealing sleeve is of a conical structure. And a sealing plug is fixedly arranged at the top end of the sealing sleeve. The valve rod is arranged, the fixing base is arranged at the bottom end of the valve rod, the sealing sleeve is arranged above the fixing base, the sealing plug is arranged above the sealing sleeve, when the inflating valve is installed on the hub, the sealing plug can be inserted into the opening of the hub, and along with installation of the inflating valve, the sealing sleeve can be tightly pressed at the opening of the hub, so that the sealing effect of the inflating valve is improved. And the positioning ring is arranged above the sealing plug, and the groove matched with the sealing plug is formed in the lower surface of the positioning ring, so that the sealing effect of the installation of the inflating valve is further improved.

Description

Technical Field

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

[0002] Vacuum tires are increasingly used on bicycles, motorcycles, cars, buses, and trucks. Vacuum tires have high elasticity and wear resistance, as well as good adhesion and heat dissipation. In order to improve the performance of vacuum tires, users will add inner tubes. Vacuum tires with inner tubes have good load-bearing capacity and can well bear the weight of the car body, making the vehicle stable. It can cushion shocks and reduce the impact force received by the car during driving, making the vehicle stable. It is also an important component of the car body, which can increase the kinetic energy of the car and thus reduce the noise generated when driving. The valve is a key component for the tire to be inflated and deflated, and its sealing has a very critical impact on whether the tire can be used normally.

[0003] A tubeless valve with announcement number CN219055893U includes a threaded rod and a core rod, a base is provided at the tail of the threaded rod, a groove is provided in the middle of the bottom of the base, a hollow channel running through the entire threaded rod is provided in the middle of the groove, the end of the core rod extends from the base into the hollow channel of the threaded rod, the tail of the core rod is slidably connected in the groove, the end of the threaded rod is connected with a sealing cap for sealing the upper port of the hollow channel, the rod body of the threaded rod is screwed with a locking nut, the threaded rod passes through the wheel rim and is fixed on the wheel rim by pressing between the locking nut and the base. Due to the coreless design, the entire repair and inflation process does not require the removal of the valve core, which is easy to operate and more efficient.

[0004] The tubeless valve designed in the above technical solution has some problems in practical application. The sealing structure between the valve and the wheel hub is relatively simple, and it is difficult to ensure the sealing between the valve and the wheel hub during installation, thereby making it difficult to ensure the airtightness of the tire during use.

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

[0006] The utility model aims to provide a tubeless 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 tubeless valve, comprising a valve stem, a fixing seat is fixedly provided at the bottom end of the valve stem, a sealing sleeve is provided above the fixing seat, the sealing sleeve is sleeved on the outside of the valve stem, and the sealing sleeve is arranged in a conical structure, a sealing plug is fixedly provided at the top end of the sealing sleeve, and the sealing plug is arranged in a conical structure, a flat groove is provided between the sealing sleeve and the sealing plug, a groove of an annular structure is provided on the upper surface of the fixing seat, a protrusion of an annular structure is fixedly provided on the bottom end of the sealing sleeve, and the protrusion is matched with the groove, a positioning ring is provided above the sealing sleeve, the positioning ring is sleeved on the outside of the valve stem, and an arc groove is provided on the lower surface of the positioning ring, an annular groove is provided in the middle part of the lower surface of the positioning ring, and the annular groove corresponds to the sealing plug.

[0008] Preferably, a locking ring is provided above the positioning ring, and the locking ring is provided on the outer side of the valve stem through threads.

[0009] Preferably, the valve stem is configured as a hollow structure, and air holes are provided through both sides of the fixing seat, and the air holes extend to the interior of the valve stem.

[0010] Preferably, a valve core is threadedly disposed at the inner top end of the valve stem.

[0011] Preferably, an external thread is provided on the outer side of the valve stem, and two square grooves are provided on the top end of the outer side wall of the valve stem.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model provides a valve stem, a fixing seat is provided at the bottom end of the valve stem, a sealing sleeve is provided above the fixing seat, a sealing plug is provided above the sealing sleeve, and when the valve is installed on the wheel hub, the sealing plug can be inserted into the opening of the wheel hub, and as the valve is installed, the sealing sleeve can be pressed tightly at the opening of the wheel hub to ensure the sealing effect of the valve installation position, and a positioning ring is provided above the sealing plug, and a groove matching the sealing plug is provided on the lower surface of the positioning ring to further improve the sealing effect of the valve installation;

[0014] 2. The utility model provides a fixing seat, and a sealing sleeve is provided above the fixing seat. When the valve is installed, the sealing sleeve can fill the gap between the fixing seat and the wheel hub to ensure the sealing effect of the position where the fixing seat is located. By providing a bump and a groove between the fixing seat and the sealing sleeve, the setting of the bump and the groove can improve the sealing effect between the fixing seat and the sealing sleeve, so as to further improve the sealing effect of the valve installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0017] Figure 3 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 4 The figure is a schematic diagram of the position relationship of the valve stem, the positioning ring and the locking ring of the utility model.

[0019] In the figure: 1. valve stem; 2. fixing seat; 3. sealing sleeve; 4. sealing plug; 5. flat groove; 6. groove; 7. bump; 8. positioning ring; 9. arc groove; 10. annular groove; 11. locking ring; 12. air hole; 13. valve core; 14. square groove. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model provides Figure 1-4 A tubeless air valve shown in the figure comprises a valve stem 1, a fixing seat 2 is fixedly provided at the bottom end of the valve stem 1, a sealing sleeve 3 is provided above the fixing seat 2, the sealing sleeve 3 is sleeved and provided on the outside of the valve stem 1, and the sealing sleeve 3 is arranged in a conical structure, a sealing plug 4 is fixedly provided at the top end of the sealing sleeve 3, and the sealing plug 4 is arranged in a conical structure, a flat groove 5 is arranged between the sealing sleeve 3 and the sealing plug 4, a groove 6 of an annular structure is provided on the upper surface of the fixing seat 2, a convex block 7 of an annular structure is fixedly provided at the bottom end of the sealing sleeve 3, and the convex block 7 is adapted to the groove 6, and the convex block 7 cooperates with the groove 6 to achieve sealing between the sealing sleeve 3 and the fixing seat 2, thereby improving the sealing effect of the air valve;

[0022] Specifically, a locating ring 8 is arranged above the sealing sleeve 3, and the locating ring 8 is sleeved and arranged on the outer side of the valve stem 1, and an arc groove 9 is arranged on the lower surface of the locating ring 8, and the arrangement of the arc groove 9 ensures that the locating ring 8 can fit closely with the outer side of the wheel hub, so as to facilitate the installation of the locating ring 8, and an annular groove 10 is opened in the middle of the lower surface of the locating ring 8, and the annular groove 10 corresponds to the sealing plug 4;

[0023] More specifically, a locking ring 11 is disposed above the positioning ring 8, and the locking ring 11 is disposed on the outside of the valve stem 1 through a thread, and the locking ring 11 can slide on the outside of the valve stem 1 to achieve compression and locking of the positioning ring 8;

[0024] Furthermore, the valve stem 1 is configured as a hollow structure, and air holes 12 are provided on both sides of the fixing seat 2, and the air holes 12 extend to the inside of the valve stem 1, and the air holes 12 are used to realize the charging and discharging of gas;

[0025] Moreover, a valve core 13 is threadedly arranged at the inner top of the valve stem 1, an external thread is arranged at the outer side of the valve stem 1, and two square grooves 14 are provided at the top of the outer wall of the valve stem 1. The setting of the square grooves 14 makes it convenient for the user to clamp the valve stem 1 with tools to facilitate the installation of the valve stem 1.

[0026] Working principle of this utility model:

[0027] When installing the device, firstly, the fixing seat 2 and the sealing sleeve 3 are sleeved on the outer side of the valve stem 1 in sequence, and then the valve stem 1 is passed through the air hole reserved on the wheel hub from the inner side of the wheel hub until the sealing plug 4 at one end of the sealing sleeve 3 is inserted into the air hole on the wheel hub, and then the positioning ring 8 is sleeved on the outer side of the valve stem 1, and the position of the positioning ring 8 is adjusted so that the positioning ring 8 fits the outer side wall of the wheel hub, and then the locking ring 11 is screwed on the outer side of the valve stem 1, and the square groove 14 is clamped by a wrench to fix the position of the valve stem 1, and then the locking ring 11 is rotated to make The locking ring 11 squeezes the positioning ring 8 downward. During this process, the valve stem 1 drives the fixing seat 2 to move outward, the fixing seat 2 drives the sealing sleeve 3 to move, and the sealing sleeve 3 drives the sealing plug 4 to move, so that the sealing plug 4 is completely inserted into the air hole. At this time, the flat groove 5 at the connection between the sealing sleeve 3 and the sealing plug 4 is completely fitted with the groove of the air hole, and undergoes a certain deformation as the sealing sleeve 3 is squeezed, so that the air hole is completely blocked. At the same time, the sealing plug 4 is inserted into the groove 6 to completely seal the gap between the sealing plug 4 and the positioning ring 8. At this time, the installation of the valve mouth can be completed.

[0028] 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 tubeless air valve, comprising a valve stem (1), characterized in that: The bottom end of the valve stem (1) is fixedly provided with a fixing seat (2), the upper part of the fixing seat (2) is provided with a sealing sleeve (3), the sealing sleeve (3) is sleeved and provided on the outer side of the valve stem (1), and the sealing sleeve (3) is provided with a conical structure, the top end of the sealing sleeve (3) is fixedly provided with a sealing plug (4), and the sealing plug (4) is provided with a conical structure, a flat groove (5) is provided between the sealing sleeve (3) and the sealing plug (4), and the upper surface of the fixing seat (2) is provided with A groove (6) of an annular structure, a protrusion (7) of an annular structure is fixedly provided at the bottom end of the sealing sleeve (3), and the protrusion (7) is adapted to the groove (6), a positioning ring (8) is provided above the sealing sleeve (3), the positioning ring (8) is sleeved on the outer side of the valve stem (1), and an arc groove (9) is provided on the lower surface of the positioning ring (8), and an annular groove (10) is provided in the middle of the lower surface of the positioning ring (8), and the annular groove (10) corresponds to the sealing plug (4).

2. A tubeless air valve according to claim 1, characterized in that: A locking ring (11) is arranged above the positioning ring (8), and the locking ring (11) is arranged on the outer side of the valve stem (1) through threads.

3. A tubeless air valve according to claim 2, characterized in that: The valve stem (1) is configured as a hollow structure, and air holes (12) are provided through both sides of the fixing seat (2), and the air holes (12) extend into the interior of the valve stem (1).

4. A tubeless air valve according to claim 3, characterized in that: The inner top end of the valve stem (1) is provided with a valve core (13) via a thread.

5. A tubeless air valve according to claim 4, characterized in that: The outer side of the valve stem (1) is provided with an external thread, and the top end of the outer side wall of the valve stem (1) is provided with two square grooves (14).

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