Self-lubricating valve core structure

Abstract

The utility model discloses a self-lubricating valve core structure, and relates to the technical field of valve cores, in particular to a self-lubricating valve core structure, which comprises a valve core main body, the valve core main body comprises a valve core top seat, and threads are arranged on the outer sides of the valve core main body and the valve core top seat. A valve core valve rod for controlling air inlet is arranged on the valve core body and the valve core top seat, a through groove for the valve core valve rod to move is formed in the middle of the valve core top seat in a penetrating mode, and a plurality of lubricating oil storage cavities are formed in the valve core top seat. An oil outlet hole communicated with the through groove is formed in the bottom end of the side, close to the through groove, of the lubricating oil storage cavity, and concave threads are formed in the outer side of the valve core valve rod of the lubricating oil storage cavity. According to the self-lubricating valve core structure, by pushing the valve core valve rod, the valve core valve rod can drive the pushing circular plate to move, and then the lubricating oil control seat can move.

Description

Technical Field

[0001] The utility model relates to the technical field of valve cores, in particular to a self-lubricating valve core structure. Background Art

[0002] With the rapid development of the economy, the automotive industry has been booming. In the automotive industry, the safety protection system is an important subsystem, and related technologies are constantly being updated. The tire valve core is the sealing component of the tire, and it also directly affects the safety performance of the vehicle. In order to ensure the smooth movement of the car, the tire usually needs to maintain a certain pressure. During the long-term use of the tire, the valve core is constantly moving, and there is often debris between the gaps where it moves. At this time, lubricating oil needs to be added to ensure that the valve core can open smoothly. Therefore, the valve core needs to be continuously lubricated. If the lubricating oil is forgotten for a long time, it is easy to cause the valve core to be blocked and difficult to open during inflation, which limits the use of the valve core. For this reason, we propose a self-lubricating valve core structure. Utility Model Content

[0003] The utility model provides a self-lubricating valve core structure, which solves the problems raised by the above background technology.

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions: a self-lubricating valve core structure, including a valve core body, the valve core body including a valve core top seat, the outer sides of the valve core body and the valve core top seat are jointly provided with threads, and a valve core valve stem for controlling air intake is provided on the valve core body and the valve core top seat, a through groove for movement of the valve core valve stem is provided through the middle of the valve core top seat, and a plurality of lubricating oil storage chambers are provided inside the valve core top seat, and an oil outlet hole connected to the through groove is provided at the bottom end of the lubricating oil storage chamber close to the through groove, the outer side of the valve core valve stem is provided with a recessed thread, and the valve core valve stem and the valve core top seat are threadedly fitted, and the valve core valve stem is fixedly connected to a pushing circular plate at one end passing through the valve core top seat, and the top of the pushing circular plate is fixedly connected to a lubricating oil control seat that can close the oil outlet hole.

[0005] Optionally, the bottom end of the valve core stem is cone-shaped, and the bottom end of the valve core stem can close the valve core body. The bottom of the pushing circular plate is fixedly connected with a spring, and the top end of the spring abuts against the bottom end inside the valve core body.

[0006] Optionally, a threaded section is provided on the inner side of the bottom end of the through groove, and the threaded section fits with the thread on the outer side of the valve core stem. The bottom plane of the lubricating oil storage cavity is inclined, and the oil outlet hole is inclined upward from the inside to the outside.

[0007] Optionally, the lubricating oil control seat includes a closed ring sleeve, a connecting rod, and a linkage ring sleeve, and the bottom end of the linkage ring sleeve extends into the interior of the valve core body and is fixed to the top end of the push circular plate.

[0008] Optionally, the top end of the linkage ring is fixedly connected to a plurality of connecting rods, and the top ends of the plurality of connecting rods are commonly fixed to the bottom end of the closed ring.

[0009] Optionally, the closed ring sleeve and the linkage ring sleeve are cylindrical, and the closed ring sleeve and the linkage ring sleeve are located between the lubricating oil storage chamber and the oil outlet hole, so that the closed ring sleeve and the linkage ring sleeve can both close the oil outlet hole.

[0010] The utility model has the following beneficial effects:

[0011] 1. The self-lubricating valve core structure pushes the valve core stem, which in turn drives the push circular plate to move, and then the lubricating oil control seat can move. The closed ring sleeve and the linkage ring sleeve on the lubricating oil control seat can move to open the oil outlet hole, so that the oil outlet hole and the lubricating oil storage chamber can be connected, so that the lubricating oil can be self-lubricated each time the air is pumped, ensuring the smooth push of the valve core stem, effectively avoiding the blockage of the valve core stem, and making it more convenient to use.

[0012] 2. The self-lubricating valve core structure has a structure in which the recessed threads on the valve core stem pass through the oil outlet hole when the valve core stem rotates, so that a large amount of lubricating oil enters the threads when the threads pass through the oil outlet hole. Under the action of the rotation of the valve core stem, the lubricating oil in the threads can be gradually applied to the inner wall of the through groove on the valve core top seat, ensuring that the through groove can be fully applied with lubricating oil, thereby achieving a better lubricating oil adding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 This is another cross-sectional structural diagram of the present invention;

[0016] Figure 4 This is a structural diagram of the valve core and valve stem connection of the utility model;

[0017] Figure 5 This is a schematic structural diagram of the cross-section of the valve core and top seat connection of the utility model;

[0018] Figure 6 It is a structural diagram of point A of the present utility model.

[0019] In the figure: 1. Valve core body; 2. Valve core top seat; 3. Valve core valve stem; 4. Lubricating oil control seat; 5. Pushing circular plate; 6. Spring; 7. Lubricating oil storage chamber; 8. Closed ring sleeve; 9. Connecting rod; 10. Linkage ring sleeve; 11. Oil outlet hole; 12. Threaded section. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 6A self-lubricating valve core structure includes a valve core body 1, which includes a valve core top seat 2. The outer sides of the valve core body 1 and the valve core top seat 2 are both provided with threads, so that they can be installed smoothly. In addition, a valve core valve stem 3 for controlling air intake is provided on the valve core body 1 and the valve core top seat 2. The movement of the valve core valve stem 3 enables the valve core body 1 to be opened and then to be inflated. This is all existing technology and no improvement is made here. Therefore, no detailed description is made. A through groove is provided in the middle of the valve core top seat 2 for the movement of the valve core valve stem 3, which can limit the movement trajectory of the valve core valve stem 3, thereby allowing the valve core valve stem 3 to move stably, and a plurality of lubricating oil storage chambers 7 are provided inside the valve core top seat 2. The lubricating oil storage chamber 7 is provided with an oil outlet 11 connected to the through groove at the bottom end near the through groove, so that the lubricating oil in the lubricating oil storage chamber 7 can be added between the valve core valve stem 3 and the through groove through the oil outlet 11. The side is provided with a recessed thread, and the valve core valve stem 3 and the valve core top seat 2 are threadedly fitted, so that the valve core valve stem 3 can rotate when it moves, and under the action of the rotation of the valve core valve stem 3, the recessed thread on the valve core valve stem 3 passes through the oil outlet hole 11, and a large amount of lubricating oil will enter the thread, and under the action of the rotation of the valve core valve stem 3, the lubricating oil in the thread can be gradually applied to the inner wall of the through groove on the valve core top seat 2, ensuring that the through groove can be fully coated with lubricating oil, thereby In order to achieve a better effect of adding lubricating oil, the valve core valve stem 3 passes through one end of the valve core top seat 2 and is fixedly connected to a pushing circular plate 5. Driven by the valve core valve stem 3, the pushing circular plate 5 can be moved, and the top of the pushing circular plate 5 is fixedly connected to a lubricating oil control seat 4 that can close the oil outlet 11. Driven by the pushing circular plate 5, the lubricating oil control seat 4 can be moved, and then when it is inflated, the lubricating oil control seat 4 can open the oil outlet 11, thereby enabling it to self-lubricate.

[0022] See also Figures 1 to 5 The bottom end of the valve core stem 3 is in a cone shape, and the bottom end of the valve core stem 3 can close the valve core body 1, so that it can smoothly close the valve core body 1 in one direction, so that it can smoothly inflate. The bottom of the pushing circular plate 5 is fixedly connected with a spring 6, and the top of the spring 6 is in contact with the bottom end of the inside of the valve core body 1. When the valve core stem 3 moves to open the valve core body 1, its spring 6 is compressed, and under the action of the elastic force of the spring 6, it can push the circular plate 5 to make the valve core stem 3 return to its original position, and the lubricating oil control seat 4 can close the oil outlet 11.

[0023] See also Figures 1 to 6A threaded section 12 is provided on the inner side of the bottom end of the through groove, and the threaded section 12 fits with the thread on the outer side of the valve core stem 3, so that the valve core stem 3 can rotate smoothly. The bottom plane of the lubricating oil storage chamber 7 is inclined, and the oil outlet hole 11 is inclined upward from the inside to the outside, so that the lubricating oil can flow smoothly to the oil outlet hole 11 and flow out through the oil outlet hole 11.

[0024] See also Figures 1 to 6 The lubricating oil control seat 4 includes a closed ring sleeve 8, a connecting rod 9, and a linkage ring sleeve 10. The bottom end of the linkage ring sleeve 10 extends into the interior of the valve core body 1 and is fixed to the top end of the pushing circular plate 5, so that the pushing circular plate 5 can push the linkage ring sleeve 10 to move.

[0025] See also Figures 1 to 6 The top of the linkage ring sleeve 10 is fixedly connected to a plurality of connecting rods 9, and the tops of the plurality of connecting rods 9 are fixed to the bottom end of the closed ring sleeve 8. Through the linkage of the connecting rods 9, the closed ring sleeve 8 and the linkage ring sleeve 10 can move together.

[0026] See also Figures 1 to 6 The closed ring sleeve 8 and the linkage ring sleeve 10 are cylindrical, so that the closed ring sleeve 8 and the linkage ring sleeve 10 can rotate when moving, ensuring the smooth rotation of the valve core stem 3, and the closed ring sleeve 8 and the linkage ring sleeve 10 are located between the lubricating oil storage chamber 7 and the oil outlet hole 11, so that the closed ring sleeve 8 and the linkage ring sleeve 10 can both close the oil outlet hole 11.

[0027] In summary, the self-lubricating valve core structure, when in use, when pumping air, pushes the valve core valve stem 3, so that the valve core valve stem 3 can move relative to the valve core top seat 2, and under the action of the threaded section 12, the valve core valve stem 3 can rotate relative to the movement, and under the action of the movement of the valve core valve stem 3, the pushing circular plate 5 can move, and under the drive of the pushing circular plate 5, the lubricating oil control seat 4 can move, and the closed ring sleeve 8 and the linkage ring sleeve 10 on the lubricating oil control seat 4 move, so that the lubricating oil storage chamber 7 and the linkage ring sleeve 10 can be moved. The oil in the oil storage chamber 7 can be connected so that the oil in the oil storage chamber 7 can flow from the oil outlet hole 11 into the through groove in the valve core top seat 2, so that it can self-lubricate, and when the valve core valve stem 3 rotates and moves, the recessed thread on the valve core valve stem 3 will pass through the oil outlet hole 11, so that when the thread passes through the oil outlet hole 11, a large amount of oil will enter the thread, and under the action of the rotation of the valve core valve stem 3, the oil in the thread can be gradually smeared on the inner wall of the through groove on the valve core top seat 2, ensuring that the through groove can be fully smeared with oil, thereby making the lubricating oil adding effect better.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating valve core structure, comprising a valve core body (1), the valve core body (1) comprising a valve core top seat (2), the valve core body (1) and the valve core top seat (2) having threads on their outer sides, and a valve core valve stem (3) for controlling air intake provided on the valve core body (1) and the valve core top seat (2), characterized in that: A through groove for the valve core valve stem (3) to move is provided through the middle of the valve core top seat (2), and a plurality of lubricating oil storage chambers (7) are provided inside the valve core top seat (2). An oil outlet hole (11) communicating with the through groove is provided at the bottom end of the lubricating oil storage chamber (7) close to one side of the through groove. A recessed thread is provided on the outer side of the valve core valve stem (3), and the valve core valve stem (3) and the valve core top seat (2) are threadedly fitted. One end of the valve core valve stem (3) passing through the valve core top seat (2) is fixedly connected to a pushing circular plate (5), and the top of the pushing circular plate (5) is fixedly connected to a lubricating oil control seat (4) capable of closing the oil outlet hole (11).

2. The self-lubricating valve core structure according to claim 1, characterized in that: The bottom end of the valve core stem (3) is in a cone shape, and the bottom end of the valve core stem (3) can close the valve core body (1). The bottom of the pushing circular plate (5) is fixedly connected to a spring (6), and the top end of the spring (6) abuts against the bottom end inside the valve core body (1).

3. The self-lubricating valve core structure according to claim 2, characterized in that: A threaded section (12) is provided on the inner side of the bottom end of the through groove, and the threaded section (12) is matched with the thread on the outer side of the valve core stem (3). The bottom plane of the lubricating oil storage cavity (7) is inclined, and the oil outlet hole (11) is inclined upward from the inside to the outside.

4. The self-lubricating valve core structure according to claim 3, characterized in that: The lubricating oil control seat (4) comprises a closed ring sleeve (8), a connecting rod (9), and a linkage ring sleeve (10). The bottom end of the linkage ring sleeve (10) extends into the interior of the valve core body (1) and is fixed to the top end of the push circular plate (5).

5. The self-lubricating valve core structure according to claim 4, characterized in that: The top end of the linkage ring sleeve (10) is fixedly connected to a plurality of connecting rods (9), and the top ends of the plurality of connecting rods (9) are fixed to the bottom end of the closed ring sleeve (8).

6. The self-lubricating valve core structure according to claim 5, characterized in that: The closed ring sleeve (8) and the linked ring sleeve (10) are cylindrical, and the closed ring sleeve (8) and the linked ring sleeve (10) are located between the lubricating oil storage chamber (7) and the oil outlet hole (11), so that the closed ring sleeve (8) and the linked ring sleeve (10) can both close the oil outlet hole (11).

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