Air cylinder adapter with coiled air passage and air pump

By designing a cylinder adapter with a U-shaped air passage and utilizing a heat sink structure, the risk of burns from high-temperature gas is eliminated, and the temperature of the external hose is effectively reduced without affecting convenience and efficiency.

CN224533811UActive Publication Date: 2026-07-21NEEDLE GRINDING TECH (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NEEDLE GRINDING TECH (SHENZHEN) CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies, while reducing the risk of burns from high-temperature gas at cylinder adapters, typically sacrifice ease of installation and removal, inflation efficiency, or user experience, making it difficult to effectively reduce the temperature of external hoses without affecting these aspects.

Method used

The cylinder adapter is designed with a U-shaped air passage. By dividing the inside of the U-shaped air passage into a U-shaped air passage and setting heat sinks along the axial direction on the outside, combined with the airflow channel in the pump housing, the gas flow time is extended and the heat dissipation area is increased, thus achieving effective cooling.

Benefits of technology

It effectively extends the flow time of high-temperature gas in the cylinder adapter, improves heat dissipation, reduces the temperature of the external hose, maintains ease of installation and removal and air inflation efficiency, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224533811U_ABST
Patent Text Reader

Abstract

The utility model discloses a cylinder adapter with meandering air passage belongs to cylinder adapter technical field, the utility model discloses an integrative moulding and intercommunication pipe head and meandering air passage pipe, and the inside of meandering air passage pipe is divided into U type air passage by partition, and the air inlet end of U type air passage communicates with pipe head, and the air outlet end of U type air passage integrally extends and forms the air outlet pipe head, and the sealing cover is installed to the inner wall of meandering air passage pipe end, and the sealing cover is located the turning place of U type air passage, the pipe head communicates with the air outlet pipe mouth of cylinder end cover, and the air outlet pipe head communicates with the external hose. Still provide a kind of air pump, use above-mentioned cylinder adapter with meandering air passage. The utility model meandering air passage pipe inside is divided into U type air passage by partition, prolongs the time of gas in cylinder adapter, realizes more effective cooling down, simultaneously is favorable to the heat better transmission to cylinder adapter surface, realizes better heat dissipation, and then realizes reducing external hose temperature, and meandering air passage pipe is equipped with fin, improves the effect of heat dissipation.
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Description

Technical Field

[0001] This utility model relates to the field of cylinder adapter technology, specifically a cylinder adapter and air pump with a loop-shaped air passage. Background Technology

[0002] During the gas compression process, the cylinder generates a large amount of high-temperature gas. This high-temperature gas is transmitted through the gas passage and conducted to the surface of the external hose, where the temperature can reach nearly 100 degrees Celsius. Accidental contact with this gas can cause serious burns. To address this high-temperature issue, commercially available products typically offer the following solutions:

[0003] 1. For separately stored hoses that require installation and disassembly, a heat insulation sleeve will be added to the air inlet of the hose to prevent burns when the user disassembles the hose after use, but this makes installation and disassembly more complicated.

[0004] 2. Reducing the pumping speed slows down the rate of heat generation, allowing sufficient time for heat dissipation. However, this requires a longer time to complete the pumping target, resulting in low efficiency and a poor user experience.

[0005] 3. The air pumping time is controlled by software, and a high temperature alarm is set in advance. When the temperature exceeds the set value, the product will automatically stop working and can only start working again after the temperature drops to a certain range; however, the air pumping efficiency is not high.

[0006] 4. Securely connect the hose to the pump core. After use, there is no need to disassemble it, so you don't have to touch the hottest part. However, this makes storage inconvenient.

[0007] All of the above methods can appropriately reduce the temperature of the external hose; however, they sacrifice ease of installation and removal, inflation efficiency, user experience, or ease of storage. Achieving an appropriate reduction in the temperature of the external hose without sacrificing these factors is a pressing issue. Therefore, this invention provides a cylinder adapter with a loop-shaped air passage. Utility Model Content

[0008] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a cylinder adapter with a U-shaped air passage. The U-shaped air passage is divided into a U-shaped air passage by a partition plate. This extends the flow time of high-temperature gas in the cylinder adapter, enabling more effective gas cooling. Furthermore, it facilitates better heat transfer to the surface of the cylinder adapter, achieving better heat dissipation and thus reducing the temperature of the external hose, thereby solving the technical problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a cylinder adapter with a U-shaped air passage, comprising: an integrally formed and interconnected pipe head and a U-shaped air passage pipe. The U-shaped air passage pipe is internally divided into a U-shaped air passage by a partition plate. The air inlet end of the U-shaped air passage is connected to the pipe head, and the air outlet end of the U-shaped air passage integrally extends to form an air outlet pipe head. A sealing cap is installed on the inner wall of the end of the U-shaped air passage pipe, and the sealing cap is located at the bend of the U-shaped air passage. The pipe head is connected to the air outlet of the cylinder end cover, and the air outlet pipe head is connected to an external hose. The U-shaped air passage pipe is internally divided into a U-shaped air passage by a partition plate, which on the one hand prolongs the flow time of high-temperature gas in the cylinder adapter, achieving more effective gas cooling; on the other hand, it facilitates better heat transfer to the surface of the cylinder adapter, achieving better heat dissipation, thereby reducing the temperature of the external hose. To ensure better heat dissipation, the cylinder adapter can be made of metal.

[0010] Preferably, the outer side of the loop-shaped air duct is integrally formed with a plurality of heat dissipation fins evenly distributed along the axial direction; this increases the heat dissipation area, improves the heat dissipation effect, and thus reduces the temperature of the external hose; in fact, the air pump with the cylinder adapter is located inside the pump housing, and the pump housing is provided with an airflow channel for heat dissipation. In order to improve the heat dissipation effect, the cylinder adapter is installed inside the airflow channel to achieve better heat dissipation of the cylinder adapter, thereby reducing the temperature of the external hose.

[0011] Preferably, the tube head and the loop airway tube are integrally formed in an L-shape, which is suitable for the air pump structure of this embodiment, facilitates installation, and facilitates the setting of the U-shaped airway.

[0012] Preferably, the pipe head, the loop-shaped air passage pipe, and the air outlet pipe head are integrally formed in a T-shape; this facilitates the installation of the cylinder adapter and the external hose.

[0013] Preferably, a first sealing ring is coaxially formed on the outer wall of the end of the pipe head, and a first sealing rubber ring is installed inside the first sealing ring with an interference fit to achieve a good seal at the connection.

[0014] Preferably, a second sealing ring is coaxially formed on the outer wall of the sealing cover, and a second sealing rubber ring is installed inside the second sealing ring with an interference fit; thus achieving a good seal at the connection.

[0015] An air pump uses the aforementioned cylinder adapter with a loop-shaped air passage. The cylinder includes a cylinder installed inside a pump housing. The air outlet of the air pump is connected to the air inlet of the cylinder end cap, and the air outlet of the cylinder end cap is connected to the pipe head of the cylinder adapter. One end of the pump housing protrudes outward to form a semi-open limiting cylinder with a semi-circular cross-section. When the loop-shaped air passage of the cylinder adapter is installed inside the semi-open limiting cylinder, the air outlet of the cylinder adapter extends from the open end of the semi-open limiting cylinder and connects to an external flexible hose. The connector's tube end extends into the pump housing from the side opening of the semi-open limiting cylinder and communicates with the air outlet; the sealing cap end of the cylinder adapter is tightly pressed against the sealing end of the semi-open limiting cylinder; several strip-shaped air outlet holes are evenly distributed on the side of one end of the pump housing, and several strip-shaped air outlet holes penetrate the semi-open limiting cylinder; several strip-shaped air inlets are evenly distributed on the other end of the pump housing; under the drive of the cooling fan, an airflow channel is formed inside the pump housing from several strip-shaped air inlets to several strip-shaped air outlet holes, and the cylinder adapter is located inside the airflow channel.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The U-shaped air passage of this utility model is divided into U-shaped air passages by a partition plate. On the one hand, it prolongs the flow time of high-temperature gas in the cylinder adapter, so as to achieve more effective cooling of the gas; on the other hand, it is conducive to better transfer of heat to the surface of the cylinder adapter, so as to achieve better heat dissipation, thereby reducing the temperature of the external hose.

[0018] 2. The outer side of the spiral air passage of this utility model is integrally formed along the axial direction and has a number of heat dissipation fins evenly distributed, which increases the heat dissipation area, improves the heat dissipation effect of the cylinder adapter, and thus reduces the temperature of the external hose.

[0019] 3. The pump casing of this utility model forms an airflow channel with several strip-shaped air inlets to several strip-shaped air outlets inside. The cylinder adapter is located inside the airflow channel, which realizes better heat dissipation of the cylinder adapter, thereby reducing the temperature of the external hose. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of a cylinder adapter with a loop-shaped air passage provided in an embodiment of this utility model.

[0022] Figure 2 for Figure 1 A sectional view.

[0023] Figure 3 This is a schematic diagram of the structure of an air pump provided by this utility model.

[0024] Figure 4 for Figure 3 Sectional view of AA.

[0025] Figure 5 for Figure 4 A magnified view of A in the middle.

[0026] Explanation of reference numerals in the attached drawings: 11-pipe head, 111-first sealing ring, 12-U-shaped air passage pipe, 121-separator plate, 122-U-shaped air passage, 123-heat sink, 13-air outlet pipe head, 14-sealing cap, 141-second sealing ring, 2-cylinder end cap, 21-air outlet, 3-external hose, 4-pump housing, 41-cylinder, 42-half-open limiting cylinder, 43-strip-shaped air outlet, 44-strip-shaped air inlet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] like Figures 1 to 5 As shown, this embodiment provides a cylinder adapter with a U-shaped air passage, including: an integrally formed and interconnected pipe head 11 and a U-shaped air passage pipe 12. The U-shaped air passage pipe 12 is internally divided into a U-shaped air passage 122 by a partition plate 121. The air inlet end of the U-shaped air passage 122 is connected to the pipe head 11, and the air outlet end of the U-shaped air passage 122 integrally extends to form an air outlet pipe head 13. A sealing cap 14 is installed on the inner wall of the end of the U-shaped air passage pipe 12, and the sealing cap 14 is located at the bend of the U-shaped air passage 122; the pipe head 11 and... The cylinder end cover 2 has an outlet 21 connected to the cylinder, and the outlet head 13 is connected to the external hose 3. In this embodiment, the inside of the loop-shaped air passage 12 is divided into a U-shaped air passage 122 by the partition plate 121. On the one hand, this prolongs the flow time of the high-temperature gas in the cylinder adapter, so as to achieve more effective cooling of the gas. On the other hand, it is conducive to better transfer of heat to the surface of the cylinder adapter, so as to achieve better heat dissipation, thereby reducing the temperature of the external hose. To ensure better heat dissipation, the cylinder adapter can be made of metal.

[0030] For further details, please refer toFigure 2 and Figure 5 As shown, the outer side of the spiral air duct 12 is integrally formed with several heat dissipation fins 123 evenly distributed along the axial direction, which increases the heat dissipation area and improves the heat dissipation effect, thereby reducing the temperature of the external hose. In fact, the air pump with the cylinder adapter is located inside the pump housing 4. The pump housing 4 is provided with an airflow channel for heat dissipation. In order to improve the heat dissipation effect, the cylinder adapter is installed in the airflow channel to achieve better heat dissipation of the cylinder adapter, thereby reducing the temperature of the external hose 3.

[0031] For further details, please refer to Figure 1 and Figure 2 As shown, the tube head 11 and the loop-shaped air passage 12 are integrally formed in an L-shape, which is suitable for the air pump structure of this embodiment, facilitates installation, and facilitates the setting of the U-shaped air passage 122. Furthermore, the tube head 11, the loop-shaped air passage 12, and the air outlet tube head 13 are integrally formed in a T-shape, which facilitates the installation of the cylinder adapter and the external hose 3.

[0032] For further details, please refer to Figure 1 As shown, a first sealing ring is coaxially formed on the outer wall of the end of the pipe head 11, and a first sealing rubber ring 111 is installed inside the first sealing ring with an interference fit to achieve a good seal at the connection.

[0033] For further details, please refer to Figure 2 As shown, a second sealing ring is coaxially formed on the outer wall of the sealing cover 14, and a second sealing rubber ring 141 is installed inside the second sealing ring with an interference fit to achieve a good seal at the connection. The sealing cover can be connected by a partial thread to maintain stable installation.

[0034] An air pump, please refer to Figures 3 to 5As shown, using the aforementioned cylinder adapter with a loop-shaped air passage, the air pump includes a cylinder 41 installed inside the pump housing 4. The outlet of the cylinder 41 is connected to the inlet of the cylinder end cover 2, and the outlet 21 of the cylinder end cover 2 is connected to the pipe head 11 of the cylinder adapter; thus, the output gas from the cylinder 41 flows stably into the cylinder adapter. One end of the pump housing 4 protrudes outward to form a semi-open limiting cylinder 42 with a semi-circular cross-section. When the loop-shaped air passage 12 of the cylinder adapter is installed inside the semi-open limiting cylinder 42, the outlet pipe head 13 of the cylinder adapter extends from the open end of the semi-open limiting cylinder 42 and is connected to the external hose 3; the pipe head 11 of the cylinder adapter extends into the pump housing 4 from the side opening of the semi-open limiting cylinder 42 and is connected to the outlet 21; the end of the sealing cap 14 of the cylinder adapter is tightly pressed against the sealing end of the semi-open limiting cylinder 42; thus, the cylinder adapter has good sealing performance. Several strip-shaped air outlets 43 are evenly distributed on one side of the pump casing 4, and the strip-shaped air outlets 43 penetrate the semi-open limiting cylinder 42; several strip-shaped air inlets 44 are evenly distributed on the other side of the pump casing 4; under the drive of the cooling fan, an airflow channel is formed inside the pump casing 4 from several strip-shaped air inlets 44 to several strip-shaped air outlets 43, and the cylinder adapter is located in the airflow channel to achieve better heat dissipation of the cylinder adapter, thereby reducing the temperature of the external hose 3.

[0035] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A cylinder adapter with a loop-shaped air passage, characterized in that, include: The tube head (11) and the U-shaped air passage (12) are integrally formed and interconnected. The U-shaped air passage (12) is divided into a U-shaped air passage (122) by a partition plate (121). The air inlet end of the U-shaped air passage (122) is connected to the tube head (11). The air outlet end of the U-shaped air passage (122) extends integrally to form an air outlet tube head (13). A sealing cap (14) is installed on the inner wall of the end of the U-shaped air passage (12). The sealing cap (14) is located at the bend of the U-shaped air passage (122). The pipe head (11) is connected to the air outlet (21) of the cylinder end cover (2), and the air outlet (13) is connected to the external hose (3).

2. The cylinder adapter with a loop-shaped air passage as described in claim 1, characterized in that, The outer side of the spiral air duct (12) is integrally formed along the axial direction and has a number of heat dissipation fins (123) evenly distributed.

3. The cylinder adapter with a loop-shaped air passage as described in claim 1 or 2, characterized in that, The tube head (11) and the loop-shaped airway tube (12) are integrally formed in an L-shape.

4. The cylinder adapter with a loop-shaped air passage as described in claim 3, characterized in that, The tube head (11), the spiral airway tube (12), and the air outlet tube head (13) are integrally formed in a T-shape.

5. The cylinder adapter with a loop-shaped air passage as described in claim 1, characterized in that, A first sealing ring is coaxially formed on the outer wall of the end of the pipe head (11), and a first sealing rubber ring (111) is installed inside the first sealing ring with an interference fit.

6. The cylinder adapter with a loop-shaped air passage as described in claim 1, characterized in that, The outer wall of the sealing cover (14) has a second sealing ring coaxially formed, and a second sealing ring (141) is installed inside the second sealing ring with an interference fit.

7. An air pump, characterized in that, Using a cylinder adapter with a loop-shaped air passage as described in any one of claims 1-6, the air pump includes a cylinder (41) installed in a pump housing (4), the outlet of the cylinder (41) is connected to the inlet of the cylinder end cover (2), and the outlet (21) of the cylinder end cover (2) is connected to the pipe head (11) of the cylinder adapter. One end of the pump housing (4) protrudes outward to form a semi-open limiting cylinder (42) with a semi-circular cross-section. When the loop air passage (12) of the cylinder adapter is installed in the semi-open limiting cylinder (42), the air outlet (13) of the cylinder adapter extends out from the open end of the semi-open limiting cylinder (42) and communicates with the external hose (3); the pipe head (11) of the cylinder adapter extends into the pump housing (4) from the side opening of the semi-open limiting cylinder (42) and communicates with the air outlet (21); the end of the sealing cap (14) of the cylinder adapter is tightly pressed against the sealing end of the semi-open limiting cylinder (42). The pump housing (4) has several strip-shaped air outlets (43) evenly distributed on one side, and the strip-shaped air outlets (43) penetrate the semi-open limiting cylinder (42); the pump housing (4) has several strip-shaped air inlets (44) evenly distributed on the other side; under the drive of the cooling fan, an airflow channel is formed inside the pump housing (4) from the strip-shaped air inlets (44) to the strip-shaped air outlets (43), and the cylinder adapter is located inside the airflow channel.