Inflation head and inflation equipment for American air tap

Abstract

The utility model relates to the field of inflating equipment, and provides an inflating head for an American air tap and inflating equipment, the inflating head comprises a connecting main body, a sealing main body and an ejector pin, the connecting main body is provided with a connecting hole channel, and the connecting hole channel is connected with the American air tap and an air outlet hole channel of the inflating equipment; the sealing body is arranged on the side, close to the first connector, of the connecting hole channel and is provided with a sealing hole channel, the end, away from the first connector, of the sealing hole channel is further provided with an abutting part, the end, close to the first connector, of the abutting part is provided with a sealing end face, and the sealing end face is suitable for abutting against the end face of the American air tap; the ejector pin is arranged on the side, close to the second connector, of the connecting hole. The inflation equipment comprises an inflation head. A connecting main body is communicated with an American air tap and inflation equipment, and a sealing main body and an American ejector pin are arranged in the connecting main body; the American air tap is inserted into the sealing hole channel and abuts against the sealing end face to form sealing, the ejector pin abuts against the valve core of the American air tap, and the inflation head is simple in structure, small in size and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of inflation equipment technology, and further to an inflation head and inflation equipment for American-style air nozzles. Background Technology

[0002] With the increasing number of cycling enthusiasts, the demand for portable air pumps is also growing. In particular, during long-distance cycling trips, tire pressure drops over time, increasing the risk of a tire blowout. Most existing air pumps come with valves compatible with different types of valves, but these valves are generally bulky, making them inconvenient to carry while cycling; they also have many parts, making operation complex and hindering quick assembly and disassembly. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to provide an inflation head and inflation device for American-style valves. The inflation head consists of a connecting body, a sealing body, and a pin. The connecting body connects the American-style valve and the inflation device, and the sealing body and the American-style pin are located inside the connecting body. In use, simply insert the American-style valve into the sealing channel and abut against the sealing end face to form a seal. The pin then abuts against the valve core of the American-style valve. The inflation head has a simple overall structure, small size, and is easy to use.

[0004] To achieve the above objectives, this utility model provides an inflation head for an American-style air nozzle, comprising a connecting body, a sealing body, and a pin. The connecting body has a connecting channel, and the connecting channel has a first connecting port and a second connecting port. The first connecting port is adapted to connect to an American-style air nozzle, and the second connecting port is adapted to connect to the air outlet channel of an inflation device.

[0005] The sealing body is disposed on the side of the connection channel near the first connection port. The sealing body has a sealing channel. The end of the sealing channel away from the first connection port is also provided with an abutment. The end of the abutment near the first connection port is provided with a sealing end face. The sealing end face is adapted to abut against the end face of the American-style air nozzle.

[0006] The ejector pin is positioned on the side of the connecting channel near the second connecting port, and the ejector pin is at least partially inserted into the sealing channel.

[0007] In some embodiments, the inner wall of the abutment portion is flush with the inner wall of the connection channel, and the sealing end face includes a first end face that is inclined radially toward the second connection port side along the sealing channel.

[0008] In some embodiments, the sealing end face further includes a second end face, which is disposed at the end of the first end face near the second connection port, and the second end face is radially disposed along the sealing channel.

[0009] In some embodiments, the end of the abutment near the second connection port is further provided with an elastic end face, which is inclined radially toward the first connection port along the sealing channel.

[0010] In some embodiments, the connecting channel includes a first channel and a second channel, wherein the first channel is provided with a first connecting port at one end away from the second channel, and the second channel is provided with a second connecting port on the side away from the first channel.

[0011] The diameter of the second channel is smaller than that of the first channel. The abutting part is disposed at the end of the first channel near the second connection port, and the ejector pin is disposed at the end of the second channel away from the second connection port and is partially located inside the sealing channel.

[0012] In some embodiments, a fixing part is further provided at the first connection port, the fixing part being adapted to abut against and fix one end of the sealing body near the first connection port, so that the sealing body is abutted and fixed between the fixing part and the end of the second channel.

[0013] In some embodiments, the fixing part is further provided with a guide end face on the side away from the sealing body, and the guide end face is inclined radially along the connection channel toward the side closer to the second connection port.

[0014] In some embodiments, the outer wall of the second channel is further provided with a threaded portion, which is adapted to connect to the air outlet channel of the inflation device;

[0015] A limiting block is also provided inside the second channel, and the limiting block is located on the side of the ejector pin near the second connection port.

[0016] In some embodiments, the outer side of the connecting body is further provided with a first abutting wall and a second abutting wall, the first abutting wall being adapted to abut against the outer wall of the inflatable device, and the second abutting wall being adapted to abut against the connecting seat on the outer side of the inflatable device.

[0017] According to another aspect of this application, an inflation device is further provided, including an inflation head, a housing, and a connecting seat for any of the above preferred embodiments for an American-style air nozzle, wherein the housing is provided with an air outlet channel, the inflation head is detachably installed in the air outlet channel, and the connecting seat is at least partially abutted between the air nozzle and the housing.

[0018] Compared with the prior art, the inflation head and inflation device for American-style valves provided by this utility model have at least one of the following beneficial effects:

[0019] 1. The inflation head consists of a connecting body, a sealing body, and a ejector pin. The connecting body connects the American-style air nozzle to the inflation device. The sealing body and the American-style ejector pin are located inside the connecting body. When in use, simply insert the American-style air nozzle into the sealing channel and abut against the sealing end face to form a seal. The ejector pin then abuts against the valve core of the American-style air nozzle. The inflation head has a simple overall structure, small size, and is easy to use.

[0020] 2. As the end of the American-style valve slides along the first end face, the first end face gradually tightens the end of the American-style valve, making the end of the American-style valve fit more closely with the sealing end face, resulting in better sealing performance; the end of the first end face near the second connection port is also provided with a second end face arranged radially along the sealing channel, which is suitable for abutting against the end of the American-style valve, so that the American-style valve is fixed at the designated position of the sealing body, preventing the ejector pin from damaging the valve core of the American-style valve.

[0021] 3. The end of the abutment part away from the sealing end face is also provided with an elastic end face. The elastic end face is inclined along the sealing channel radially toward the first connection port side, so that the abutment part has a certain elastic variable, providing a certain deformation space for the sealing body during the process of tightly pressing and connecting the American air nozzle, so as to make the sealing body and the American air nozzle fit more closely.

[0022] 4. The sealing body is fixed between the fixing part and the end of the second channel to prevent the sealing body from falling off accidentally. The assembly of the sealing body is simple and convenient. The guide end face is suitable for guiding the American air nozzle to be inserted into the first connection port of the connecting body, which facilitates the insertion of the American air nozzle into the sealing channel of the sealing body and speeds up the connection efficiency between the sealing body and the American air nozzle. Attached Figure Description

[0023] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0024] Figure 1 This is a structural diagram of an inflation head;

[0025] Figure 2 This is a cross-sectional view of an inflation head;

[0026] Figure 3 This is a cross-sectional view of the sealing body;

[0027] Figure 4 It is a cross-sectional view of the main body;

[0028] Figure 5 This is an overall diagram of the inflation equipment;

[0029] Figure 6 This is a cross-sectional view of the inflation equipment.

[0030] Explanation of icon numbers:

[0031] Connecting body 1, connecting channel 11, first channel 111, first connecting port 1111, second channel 112, second connecting port 1121, limiting block 1122, fixing part 12, guide end face 121, threaded part 13, first abutting wall 14, second abutting wall 15, sealing body 2, sealing channel 21, abutting part 22, sealing end face 221, first end face 2211, second end face 2212, elastic end face 2213, ejector pin 3, housing 4, connecting seat 5. Detailed Implementation

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0033] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0034] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0035] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

[0037] refer to Figures 1 to 4 This utility model provides an inflation head for an American-style air valve, including a connecting body 1, a sealing body 2, and a pin 3. The connecting body 1 has a connecting channel 11, which has a first connecting port 1111 and a second connecting port 1121. The first connecting port 1111 is adapted to connect to an American-style air valve, and the second connecting port 1121 is adapted to connect to the air outlet of an inflation device. The sealing body 2 is disposed on the side of the connecting channel 11 near the first connecting port 1111. The sealing body 2 has a sealing channel 21, and the end of the sealing channel 21 away from the first connecting port 1111 is also provided with an abutment portion 22. The end of the abutment portion 22 near the first connecting port 1111 is provided with a sealing end face 221, which is adapted to abut against the end face of the American-style air valve. The pin 3 is disposed on the side of the connecting channel 11 near the second connecting port 1121, and the pin 3 is at least partially inserted into the sealing channel 21.

[0038] In this embodiment, the inflation head consists of a connecting body 1, a sealing body 2, and a pin 3. The connecting body 1 connects the American-style air nozzle and the inflation device. The sealing body 2 and the American-style pin 3 are installed inside the connecting body 1. In use, the American-style air nozzle is simply inserted into the sealing channel 21 and abuts against the sealing end face 221 to form a seal. The pin 3 then abuts against the valve core of the American-style air nozzle. The inflation head has a simple overall structure, small size, and is easy to use.

[0039] Specifically, the connecting body 1 is provided with a connecting channel 11 through the axis. The two ends of the connecting channel 11 are a first connecting port 1111 and a second connecting port 1121, respectively. The first connecting port 1111 is suitable for inserting an American-style air nozzle, and the second connecting port 1121 can be detachably connected to the air outlet of the inflation device, so that the American-style air nozzle is connected to the inflation device. The sealing body 2 is disposed within the connecting channel 11. The sealing body 2 has a sealing channel 21 inside, which is coaxially arranged with the connecting channel 11. The sealing channel 21 is adapted to be compatible with an American-style air nozzle. The sealing channel 21 also has an abutment part 22, which is located at one end of the sealing channel 21 near the second connecting port 1121. The inner wall of the abutment part 22 is flush with the inner wall of the connecting channel 11. The inner wall of the abutment part 22 is also coaxially arranged with the connecting channel 11. The end of the abutment part 22 near the first connecting port 1111 has a sealing end face 221, which is adapted to abut against the end of the American-style air nozzle to seal the end of the American-style air nozzle with the sealing body 2. The sealing end face 221 includes a first end face 2211, which is radially inclined towards the second connection port 1121 along the sealing channel 21, i.e., inclined to the left. This allows the end of the American-style air valve to gradually tighten as it slides along the first end face 2211, resulting in a closer fit between the end of the American-style air valve and the sealing end face 221, thus improving sealing performance. The first end face 2211 enables the sealing body 2 to seal the American-style air valve. The ejector pin 3 is inserted into the sealing channel 21 and is adapted to match the valve core of the American-style air valve. During the insertion of the American-style air valve into the sealing body 2, it pushes open the valve core of the American-style air valve.

[0040] Preferably, the sealing end face 221 further includes a second end face 2212, which is disposed at the end of the first end face 2211 near the second connection port 1121. The second end face 2212 is radially arranged along the sealing channel 21 and parallel to the end of the connection channel 11. In this embodiment, the end of the first end face 2211 near the second connection port 1121 is also provided with a second end face 2212 radially arranged along the sealing channel 21. The second end face 2212 is adapted to abut against the end of the American-style valve, so that the American-style valve is fixed at the second end face 2212 of the sealing body 2, preventing the ejector pin 3 from damaging the valve core of the American-style valve. It is worth noting that the connection body 1 is made of metal, and the sealing body 2 is made of silicone.

[0041] Furthermore, the end of the contact portion 22 near the second connection port 1121 is also provided with an elastic end face 2213, which is inclined radially towards the first connection port 1111 along the sealing channel 21.

[0042] In this embodiment, the end of the abutment portion 22 away from the sealing end face 221 is also provided with an elastic end face 2213. The elastic end is inclined along the sealing channel 21 radially toward the first connection port 1111, so that the abutment portion 22 has a certain elastic variable, providing a certain deformation space for the sealing body 2 during the process of tightly pressing the American-style air nozzle, so as to make the sealing body 2 fit the American-style air nozzle more closely.

[0043] Specifically, the connecting channel 11 includes a first channel 111 and a second channel 112. The first channel 111 is provided with a first connection port 1111 at one end away from the second channel 112, and the second channel 112 is provided with a second connection port 1121 at one side away from the first channel 111. The diameter of the second channel 112 is smaller than the diameter of the first channel 111. The abutment part 22 is provided at one end of the first channel 111 near the second connection port 1121, and the ejector pin 3 is provided at one end of the second channel 112 away from the second connection port 1121 and is partially located in the sealing channel 21. The sealing body 2 is disposed within the first channel 111, and the abutment portion 22 is disposed at the end of the sealing body 2 near the second channel 112. The inner wall of the abutment portion 22 is flush with the inner wall of the second channel 112, that is, the diameter of the inner wall of the abutment portion 22 is equal to the diameter of the second channel 112 and the two are coaxially arranged. The abutment block has an elastic end face 2213 and a sealing end face 221 at its axial ends, respectively. The elastic end face 2213 is relatively close to the end of the second channel 112 and is inclined radially towards the first connection port 1111 along the sealing channel 21, leaving a recess at the end of the abutment portion 22 and the second channel 112. This recess provides axial deformation space for the abutment portion 22. When the American-style air nozzle is inserted into the sealing channel 21 of the sealing body 2 and pressed tightly against the sealing end face 221, the abutment portion 22 deforms and presses tightly towards the second channel 112, resulting in a tighter connection and better sealing effect between the American-style air nozzle and the sealing body 2.

[0044] Further, refer to Figure 2 and Figure 4 A fixing part 12 is also provided at the first connection port 1111. The fixing part 12 is adapted to abut against and fix the sealing body 2 at one end near the first connection port 1111, so that the sealing body 2 is abutted and fixed between the fixing part 12 and the end of the second channel 112.

[0045] In this embodiment, the sealing body 2 is abutted and fixed between the fixing part 12 and the end of the second channel 112 to prevent the sealing body 2 from falling off accidentally. The assembly of the sealing body 2 is simple and convenient.

[0046] Specifically, the connecting body 1 has a fixing part 12 at the end of the first connecting port 1111. The fixing part 12 is adapted to abut against the end of the sealing body 2 near the first connecting port 1111 to prevent the sealing body 2 from leaving the connecting body 1. The sealing body 2 is made of a soft material, making it suitable for detachable installation in the connecting channel 11 of the connecting body 1. The fixing part 12 also has a guide end face 121 on the side away from the sealing body 2. The guide end face 121 is inclined radially along the connecting channel 11 towards the side near the second connecting port 1121. The guide end face 121 is adapted to guide the American air nozzle into the first connecting port 1111 of the connecting body 1, thereby facilitating the insertion of the American air nozzle into the sealing channel 21 of the sealing body 2 and accelerating the connection efficiency between the sealing body 2 and the American air nozzle. It is worth noting that a friction part is also provided on the outer wall of the first channel 111 of the connecting body 1 to increase the friction on the outside of the connecting body 1, making it easier to manually screw the connecting body 1 into the air outlet channel of the inflation device. Meanwhile, a placement groove is provided on the outside of the connecting body 1, which is suitable for placing a colored silicone ring to serve as an indicator.

[0047] Furthermore, a threaded portion 13 is provided on the outer wall of the second channel 112, which is suitable for connecting to the air outlet channel of the inflation device; a limiting block 1122 is also provided on the inner side of the second channel 112, which is located opposite to the side of the ejector pin 3 near the second connection port 1121. In this embodiment, the connection between the main body 1 and the air outlet channel of the inflation device is achieved by a threaded connection, which allows the inflation head to be installed into the air outlet channel of the inflation device more quickly.

[0048] Preferably, refer to Figure 5 and Figure 6 The outer side of the connecting body 1 is also provided with a first abutting wall 14 and a second abutting wall 15. The first abutting wall 14 is adapted to abut against the outer wall of the inflation device, and the second abutting wall 15 is adapted to abut against the connecting seat 5 on the outer side of the inflation device.

[0049] The second abutment wall 15 is adapted to abut the connecting seat 5 between the inflation head and the housing 4 of the inflation device. In one embodiment, the connecting seat 5 is provided with an abutment channel, which is adapted to match the air outlet channel. One end of the connecting body 1 is adapted to pass through the abutment channel and the air outlet channel and connect to the inflation device, so that the second abutment wall 15 of the inflation head abuts against the end of the abutment channel of the connecting seat 5. In a modified embodiment, the connecting seat 5 may not be provided with an abutment channel. It can abut a portion of the connecting seat 5 between the second abutment wall 15 and the housing 4, as long as the inflation head can abut against one end of the connecting seat 5 and restrict its lateral freedom. In this case, the connecting seat 5 is less likely to fall off, and the connection effect between the connecting seat 5 and the housing 4 is better. The function of the connecting seat 5 is to fix the inflation device to the bicycle frame. The connecting seat 5 is provided with a binding member, which is adapted to tighten and fix the connecting seat 5 and the bicycle frame, so that the connecting seat 5 is fixedly installed on the bicycle frame. The binding member can be understood as a binding structure such as a strap. In a modified embodiment, the connecting seat 5 can be a taillight bracket for a bicycle bracket, and its fixed connection structure is not further limited in this application.

[0050] Further, refer to Figure 5 and Figure 6 This application provides an inflation device, including an inflation head for an American-style air nozzle as described in any of the above embodiments, a housing 4, and a connecting seat 5. The housing 4 has an air outlet channel, the inflation head is detachably installed in the air outlet channel, and the connecting seat 5 is at least partially abutted between the air nozzle and the housing 4. In this embodiment, the inflation head not only connects the American-style air nozzle and the air outlet channel of the housing 4, but also serves to fasten the connecting seat 5, reducing the number of parts in the inflation device, simplifying the structure, and lowering costs. Specifically, an axially penetrating connector is provided in the air outlet channel, and the inner sidewall of the connector has an internal thread. The connector is adapted to connect with the threaded portion 13 of the connecting body 1. A gasket is also provided between the end of the connecting body 1 and the end of the connector.

[0051] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An inflation head for American-style air valves, characterized in that, include: A connecting body having a connecting channel having a first connecting port and a second connecting port, the first connecting port being adapted to connect to an American-style air nozzle, and the second connecting port being adapted to connect to the air outlet channel of an inflation device. A sealing body is disposed on the side of the connection channel near the first connection port. The sealing body has a sealing channel, and the end of the sealing channel away from the first connection port is also provided with an abutment portion. The end of the abutment portion near the first connection port is provided with a sealing end face, which is adapted to abut against the end face of the American-style air nozzle. A ejector pin is disposed on the side of the connecting channel near the second connecting port, and the ejector pin is at least partially inserted into the sealing channel.

2. The inflation head for an American-style air valve according to claim 1, characterized in that, The inner wall of the abutment portion is flush with the inner wall of the connection channel, and the sealing end face includes a first end face, which is inclined along the sealing channel radially toward the second connection port side.

3. An inflation head for an American-style air valve according to claim 2, characterized in that, The sealing end face also includes a second end face, which is disposed at the end of the first end face near the second connection port, and the second end face is arranged radially along the sealing channel.

4. An inflation head for an American-style valve according to any one of claims 1-3, characterized in that, The abutment portion near the second connection port is also provided with an elastic end face, which is inclined radially towards the first connection port along the sealing channel.

5. An inflation head for an American-style air valve according to claim 4, characterized in that, The connecting channel includes a first channel and a second channel. The first channel has a first connecting port at one end away from the second channel, and the second channel has a second connecting port at one side away from the first channel. The diameter of the second channel is smaller than that of the first channel. The abutting part is disposed at the end of the first channel near the second connection port, and the ejector pin is disposed at the end of the second channel away from the second connection port and is partially located inside the sealing channel.

6. An inflation head for an American-style air valve according to claim 5, characterized in that, The first connection port is also provided with a fixing part, which is adapted to abut against and fix one end of the sealing body near the first connection port, so that the sealing body abuts and fixes between the fixing part and the end of the second channel.

7. An inflation head for an American-style air valve according to claim 6, characterized in that, The fixing part is also provided with a guide end face on the side away from the sealing body, and the guide end face is inclined radially along the connection channel toward the side closer to the second connection port.

8. An inflation head for an American-style air valve according to claim 5, characterized in that, The outer wall of the second channel is also provided with a threaded part, which is suitable for connecting to the air outlet channel of the inflation device; A limiting block is also provided inside the second channel, and the limiting block is located on the side of the ejector pin near the second connection port.

9. An inflation head for an American-style air valve according to claim 8, characterized in that, The outer side of the connecting body is also provided with a first abutting wall and a second abutting wall. The first abutting wall is adapted to abut against the outer wall of the inflation device, and the second abutting wall is adapted to abut against the connecting seat on the outer side of the inflation device.

10. An inflation device, characterized in that, The invention includes an inflation head, a housing, and a connecting seat for an American-style air nozzle as described in any one of claims 1-9, wherein the housing has an air outlet channel, the inflation head is detachably installed in the air outlet channel, and the connecting seat is at least partially abutted between the air nozzle and the housing.

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