JP3129812U

JP3129812U - Air pump

Info

Publication number: JP3129812U
Application number: JP2006009973U
Authority: JP
Inventors: 呉樹木
Original assignee: 呉樹木
Priority date: 2006-12-08
Filing date: 2006-12-08
Publication date: 2007-03-08
Anticipated expiration: 2016-12-08

Abstract

【課題】安全装置を持つ空気ポンプを提供する。
【解決手段】筒体ユニット１０、フローパスユニット２０、安全装置などの要素から形成される。筒体ユニットは筒身１２及びロッド１１を含む。筒身の両端の間に気体の圧縮パス１２１は形成される。ロッドの一端にハンドルがある。ロッドのハンドルの異なる一端にピストン１４は設けられる。ロッドのピストンが気体圧縮パスに沿って、往復するように滑り移動できる。フローパスユニットは第一端、第二端を具有する。第一端は筒体ユニットに接続され、しかも、気体の圧縮パスと相互に通る。フローパスユニットの第二端は気体注入の対象に接続される。安全装置はフローパスユニットに取り付けられる。
【選択図】図２An air pump having a safety device is provided.
It is formed from elements such as a cylinder unit 10, a flow path unit 20, and a safety device. The cylindrical body unit includes a cylindrical body 12 and a rod 11. A gas compression path 121 is formed between both ends of the cylinder. There is a handle at one end of the rod. A piston 14 is provided at a different end of the rod handle. The rod piston can slide along the gas compression path so as to reciprocate. The flow path unit has a first end and a second end. The first end is connected to the cylinder unit and passes through the gas compression path. The second end of the flow path unit is connected to a target for gas injection. The safety device is attached to the flow path unit.
[Selection] Figure 2

Description

本案は主に空気ポンプを掲示し、特に、安全装置を持ち、自動的に気圧が保持できるという空気ポンプを指す。 This proposal mainly displays an air pump, and particularly refers to an air pump having a safety device and capable of automatically maintaining atmospheric pressure.

現今の生活には、様々な用品は空気ポンプで気体を注入しなければならない。異なる物品ならば、異なる圧力が必要である。 In today's life, various supplies must be infused with an air pump. Different articles will require different pressures.

しかし、一般的に言えば、従来から、伝統の既知の空気ポンプは必要な圧力を設定する効果を遂げなかったばかりでなく、違う都合、環境に応じて、注入気体の圧力制限を変更することもできず、使用が不便だと分かる。 However, generally speaking, traditionally known air pumps have not only been effective in setting the required pressure, but can also change the pressure limit of the injected gas according to different circumstances and circumstances. I can't use it, and I find it inconvenient to use.

また、大型の空気ポンプならば、ピストンが往復のように運動しているうちに、相当に高い気体圧力が出て来るので、気体注入の対象又は空気ポンプのホースの接続部位の構造が不良であれば、いつも圧力を受けなくて、暴発または反発の危険を招いて、ついに、人の傷害の恐れを招く。 Also, in the case of a large air pump, a considerably high gas pressure comes out while the piston moves in a reciprocating manner, so the structure of the connection part of the target of gas injection or the hose of the air pump is not good. If present, it will not always be under pressure, leading to the risk of explosion or repulsion, and finally the risk of personal injury.

その他、既知の空気ポンプを別に安全装置を追加すれば、頻繁的に、構造複雑、コンポーネントの多すぎなど問題を招く。結局、製品の単価が高過ぎるばかりでなく、空気ポンプの寿命が短いなど欠点もある。ひどいのになると、実施できず、又は消費者が利便に使用できない製品を設計して、産業の利用価値がなかった。 In addition, adding a safety device separately from the known air pump frequently causes problems such as structural complexity and too many components. In the end, not only is the unit price of the product too high, but there are also drawbacks such as a short life of the air pump. When it was terrible, it was not possible to implement or designed a product that consumers could not use conveniently, and there was no industrial utility value.

前掲の問題を克服するために、本案の安全装置を持つ空気ポンプは次の利点がある。
本案により、安全装置を持つ空気ポンプならば、フローパスユニット（flow path unit）に設ける安全装置は必要な圧力を設定するために、ただ、ノズルの外に圧力メーターを接続すると、圧力が測定でき、使用利便だと分かる。また、安全装置は自動的に、フローパスユニット及び気体注入の対象の内部圧力を恒常に設定の範囲に保持する。
本案により、安全装置を持つ空気ポンプならば、フローパスユニットに設ける安全装置は簡単の構造を持ち、相当に少ないコンポーネントがある。フローパスユニットに別の結構を追加することがいらない。ただ、収容溝を用意すれば、軽易に、安全装置をアセンブリし、産業利用に合う設計になる。
本案により、安全装置を持つ空気ポンプならば、フローパスユニットに設ける安全装置はノズル又は台座又は枢設回転ユニットに設けてもよい。多種の異なる実施方式を経由して、製品の市場の普及性及び適応能力が向上されるので、進歩性を持つ設計になる。 In order to overcome the above-mentioned problems, the air pump having the present safety device has the following advantages.
With this proposal, if the air pump has a safety device, the safety device provided in the flow path unit (flow path unit) can measure the pressure by connecting a pressure meter outside the nozzle in order to set the required pressure. It turns out that it is convenient to use. In addition, the safety device automatically keeps the internal pressure of the target of the flow path unit and gas injection constantly within the set range.
According to the present plan, if the air pump has a safety device, the safety device provided in the flow path unit has a simple structure and has considerably fewer components. There is no need to add another structure to the flow path unit. However, if a storage groove is prepared, a safety device can be easily assembled and designed for industrial use.
According to the present plan, if the air pump has a safety device, the safety device provided in the flow path unit may be provided in the nozzle or the pedestal or the pivoting rotation unit. Through a variety of different implementations, the product's market spread and adaptability is improved, resulting in an inventive design.

本案の目的、特徴を遂げて、採用される技術手段及び効果などをご了解いただくために、以下、さらに具体的な実施例に図面をあわせて詳しく説明する。 In order to achieve the purpose and features of the present plan and to understand the technical means and effects employed, the following description will be made in more detail with reference to specific examples.

まず、図１、図２を参照されたい。本案の空気ポンプは主に、筒体ユニット１０、フローパスユニット２０、安全装置３０（図３参照）など要素から形成される。フローパスユニット２０は筒体ユニット１０に接続される。安全装置３０はフローパスユニット２０に取り付けられ、圧力を設定し、自動的に設定した気体圧力を保持する。 First, please refer to FIG. 1 and FIG. The air pump of the present plan is mainly formed of elements such as the cylinder unit 10, the flow path unit 20, and the safety device 30 (see FIG. 3). The flow path unit 20 is connected to the cylinder unit 10. The safety device 30 is attached to the flow path unit 20, sets the pressure, and automatically maintains the set gas pressure.

筒体ユニット１０はロッド１１及び筒身１２からなる。ロッド１１の一端にハンドル１３がある。ロッド１１のハンドル１３の反対端にピストン１４を設ける。筒身１２は第一端及び第二端を具有する。第一端を経由して、ロッド１１をその中に入れる。筒身１２の両端の間に、気体の圧縮パス１２１は形成される。それで、ロッド１１のピストン１４はその中に沿って、往復ように滑り移動し、気体を注入する。 The cylindrical unit 10 includes a rod 11 and a cylindrical body 12. There is a handle 13 at one end of the rod 11. A piston 14 is provided at the opposite end of the handle 11 of the rod 11. The cylinder 12 has a first end and a second end. Via the first end, the rod 11 is placed therein. A gas compression path 121 is formed between both ends of the cylindrical body 12. Therefore, the piston 14 of the rod 11 slides in a reciprocating manner along the inside thereof and injects a gas.

フローパスユニット２０は筒体ユニット１０に接続され、筒体ユニット１０の圧縮する気体を受け、エアを気体の注入の対象（図示せず）へ伝送してある。フローパスユニット２０は台座２１、枢設回転ユニット２２、ホース２３及びノズル２４を含む。台座２１は筒身１２の第二端に接続される。また、台座２１には、横方向に沿って延伸し、筒身１２の気体圧縮パス１２１と相互に通る枢設接続孔２１１を設ける。枢設回転ユニット２２は台座２１の枢設接続孔２１１に枢設される。それで、枢設回転ユニット２２は台座２１との間に、相対的な回転の関係を築く。枢設回転ユニット２２の中に、エアパス２２２がある。エアパス２２２は枢設接続孔２１１を貫通する貫通孔２２３を経由して、枢設接続孔２１１に通る。ホース２３の一端は枢設回転ユニット２２にて、枢設接続孔２１１の反対端に嵌め込まれ、エアパス２２２と通る。 The flow path unit 20 is connected to the cylinder unit 10, receives the gas compressed by the cylinder unit 10, and transmits the air to a target for gas injection (not shown). The flow path unit 20 includes a pedestal 21, a pivotal rotation unit 22, a hose 23, and a nozzle 24. The pedestal 21 is connected to the second end of the cylindrical body 12. In addition, the pedestal 21 is provided with a pivotal connection hole 211 that extends along the lateral direction and passes through the gas compression path 121 of the cylindrical body 12. The pivoting rotation unit 22 is pivoted in the pivotal connection hole 211 of the base 21. Therefore, the pivotal rotation unit 22 establishes a relative rotational relationship with the pedestal 21. There is an air path 222 in the pivoting rotation unit 22. The air path 222 passes through the pivot connection hole 211 via the through hole 223 that penetrates the pivot connection hole 211. One end of the hose 23 is fitted into the opposite end of the pivot connection hole 211 by the pivot rotation unit 22 and passes through the air path 222.

図３−図５を参照されたい。それは本案の第一実施例である。そのノズル２４の一端はホース２３と枢設回転ユニット２２との反対端に嵌めて接続される。（図１を参照）。また、ノズル２４に気体の流れの通路２４１を設ける。通路２４１はホース２３に通る。 See FIGS. 3-5. This is the first embodiment of the present plan. One end of the nozzle 24 is fitted and connected to the opposite end of the hose 23 and the pivotal rotation unit 22. (See FIG. 1). The nozzle 24 is provided with a gas flow passage 241. The passage 241 passes to the hose 23.

フローパスユニット２０に、収容溝４０が加工される。収容溝４０はノズル２４の片側に設けられる。収容溝４０に貫通孔４１が設けられるので、ノズル２４の通路２４１に通る。収容溝４０と貫通孔４１との交接箇所に、錐状の受け面４２は形成される。収容溝４０の開放端に、ねじ山４３がある。 The accommodation groove 40 is processed in the flow path unit 20. The housing groove 40 is provided on one side of the nozzle 24. Since the through hole 41 is provided in the accommodation groove 40, it passes through the passage 241 of the nozzle 24. A conical receiving surface 42 is formed at the intersection of the receiving groove 40 and the through hole 41. There is a thread 43 at the open end of the receiving groove 40.

安全装置３０は収容溝４０の中に取り付けられて、必要な圧力を設定し、注入の気圧を設定の圧力範囲に保持する。安全装置３０は押しユニット３１、調整ユニット３２及び弾性体３３など要素からなる。押しユニット３１は収容溝４０の中に設けられ、受け面４２に接触するので、気密の関係を築く。押しユニット３１は錐状の表面３１１を形成し、収容溝４０の受け面４２に接触してある。押しユニット３１の錐状表面３１１に、Ｏ−リング３１２があるので、優れた気密効果を提供する。 The safety device 30 is mounted in the receiving groove 40 to set a necessary pressure and keep the injection pressure within a set pressure range. The safety device 30 includes elements such as a push unit 31, an adjustment unit 32, and an elastic body 33. Since the pushing unit 31 is provided in the receiving groove 40 and contacts the receiving surface 42, an airtight relationship is established. The pushing unit 31 forms a conical surface 311 and is in contact with the receiving surface 42 of the receiving groove 40. Since there is an O-ring 312 on the conical surface 311 of the push unit 31, an excellent airtight effect is provided.

調整ユニット３２の外周に雄ねじ山３２１を設けて、収容溝４０の雌ねじ山４３に噛み合うように結合する。調整ユニット３２の中心に、リークホール３２２があるので、収容溝４０の気体を大気へ排出させる。調整ユニット３２の外側に調整部３２３が設けられて、一の字形のスクリュードライバーで作動できる。弾性体３３は押しユニット３１と調整ユニット３２との間に設置され、弾性の作用力を提供する。 A male thread 321 is provided on the outer periphery of the adjustment unit 32 and is coupled so as to mesh with the female thread 43 of the receiving groove 40. Since there is a leak hole 322 at the center of the adjustment unit 32, the gas in the accommodation groove 40 is discharged to the atmosphere. An adjustment unit 323 is provided outside the adjustment unit 32 and can be operated with a single-shaped screwdriver. The elastic body 33 is installed between the push unit 31 and the adjustment unit 32 and provides an elastic acting force.

図６、図７を参照されたい。ノズル２４を気体の注入対象（図示せず）に接続しているうちに、気体の注入ができ、エアを気体の注入対象にいれる。そのときに、フローパスユニット２０と気体の注入対象との間に、密閉の空間を形成するので、内部の気圧は同じである。持続に、エアを注入すれば、フローパスユニット２０と気体の注入対象との内部気圧が安全装置３０の設定する圧力より大きいときに、安全装置３０の弾性体３３が気体圧力に受けて圧縮され、通路２４１の気体が貫通孔４１から、押しユニット３１を押し離れる。さらに、収容溝４０と調整ユニット３２のリークホール（leak hole）３２２まで流れ、大気へ排出してある。フローパスユニット２０と気体の注入対象との内部気圧が安全装置３０の設定の圧力へ戻るときに、弾性体３３は再び、押しユニット３１を収容溝４０の受け面４２へ移行させ、つっかいをし、気密の効果が得られる。そのときに、フローパスユニット２０と気体の注入対象との内部気圧は安全装置３０の設定の圧力になる。 Please refer to FIG. 6 and FIG. While the nozzle 24 is connected to a gas injection target (not shown), gas can be injected, and air is added to the gas injection target. At that time, since a sealed space is formed between the flow path unit 20 and the gas injection target, the internal atmospheric pressure is the same. If air is continuously injected, the elastic body 33 of the safety device 30 is compressed by receiving the gas pressure when the internal pressure of the flow path unit 20 and the gas injection target is larger than the pressure set by the safety device 30. The gas in the passage 241 pushes the push unit 31 away from the through hole 41. Further, it flows to the accommodation groove 40 and the leak hole 322 of the adjustment unit 32 and is discharged to the atmosphere. When the internal air pressure between the flow path unit 20 and the gas injection target returns to the pressure set by the safety device 30, the elastic body 33 again moves the push unit 31 to the receiving surface 42 of the receiving groove 40 and keeps it sealed. The airtight effect is obtained. At that time, the internal air pressure between the flow path unit 20 and the gas injection target becomes the pressure set by the safety device 30.

図８を参照されたい。それは本案により、安全装置４０が異なる設定圧力に調整される状態図面である。調整ユニット３２を回すと、弾性体３３の押し力を制御することができる。押しユニット３１と受け面４２との接触力が大きく（又は小さく）変更したら、安全装置３０の設定圧力を調整する効果は得られる。 Please refer to FIG. It is a state drawing in which the safety device 40 is adjusted to different set pressures according to the present plan. When the adjustment unit 32 is turned, the pressing force of the elastic body 33 can be controlled. If the contact force between the push unit 31 and the receiving surface 42 is changed large (or small), the effect of adjusting the set pressure of the safety device 30 is obtained.

図９、図１０を参照されたい。それは本案の第二実施例である。本例がほぼ前掲の実施例と同じだが、その差異は収容溝４０の設置位置が異なる。どころが、収容溝４０はやはり、フローパスユニット２０に設置される。 Please refer to FIG. 9 and FIG. This is the second embodiment of the present plan. This example is almost the same as the previous example, but the difference is the installation position of the receiving groove 40. On the contrary, the accommodation groove 40 is still installed in the flow path unit 20.

フローパスユニット２０に収容溝４０が加工される。収容溝４０は枢設回転ユニット２２の片側に設けられる。収容溝４０に貫通孔４１が設けられるので、枢設回転ユニット２２のエアパス２２２に通る。収容溝４０と貫通孔４１との交接箇所に、錐状の受け面４２は形成される。安全装置３０は収容溝４０の中に設けられる。 The accommodation groove 40 is processed in the flow path unit 20. The accommodation groove 40 is provided on one side of the pivotal rotation unit 22. Since the through hole 41 is provided in the accommodation groove 40, it passes through the air path 222 of the pivotal rotation unit 22. A conical receiving surface 42 is formed at the intersection of the receiving groove 40 and the through hole 41. The safety device 30 is provided in the receiving groove 40.

エアを注入するときに、フローパスユニット２０と気体の注入対象との内部気圧が安全装置３０の設定する圧力より大きいときに、安全装置３０の弾性体３３が気体圧力に受けて圧縮され、エアパス２２２の気体が貫通孔４１から、押しユニット３１を押し離れ、大気へ排出してある。フローパスユニット２０と気体の注入対象との内部気圧が安全装置３０の設定の圧力へ戻るときに、弾性体３３は再び、押しユニット３１を収容溝４０へ移行させ、つっかいをし、気密の効果が得られる。そのときに、フローローパスユニット２０と気体の注入対象との内部気圧は安全装置３０の設定の圧力になる。 When injecting air, when the internal pressure of the flow path unit 20 and the gas injection target is larger than the pressure set by the safety device 30, the elastic body 33 of the safety device 30 is compressed by receiving the gas pressure, and the air path 222 is compressed. The gas from the through hole 41 pushes away the pushing unit 31 and is discharged to the atmosphere. When the internal air pressure between the flow path unit 20 and the gas injection target returns to the pressure set in the safety device 30, the elastic body 33 again moves the push unit 31 to the receiving groove 40, and is sealed, thereby achieving an airtight effect. Is obtained. At that time, the internal atmospheric pressure of the flow low-pass unit 20 and the gas injection target becomes the pressure set by the safety device 30.

図１１、図１２を参照されたい。それは本案の第三実施例である。本例がほぼ前掲の実施例と同じだが、その差異は収容溝４０の設置位置が異なる。どころが、収容溝４０はやはり、フローパスユニット２０に設置される。 Please refer to FIG. 11 and FIG. That is the third embodiment of this proposal. This example is almost the same as the previous example, but the difference is the installation position of the receiving groove 40. On the contrary, the accommodation groove 40 is still installed in the flow path unit 20.

フローパスユニット２０に収容溝４０が加工される。収容溝４０は台座２１に設けられる。収容溝４０に貫通孔４１が設けられるので、台座２１の枢設回転孔２１１に通る。収容溝４０と貫通孔４１との交接箇所に錐状の受け面４２は形成される。安全装置３０は収容溝４０の中に設けられる。 The accommodation groove 40 is processed in the flow path unit 20. The housing groove 40 is provided in the base 21. Since the through hole 41 is provided in the accommodation groove 40, it passes through the pivotal rotation hole 211 of the base 21. A conical receiving surface 42 is formed at the intersection of the receiving groove 40 and the through hole 41. The safety device 30 is provided in the receiving groove 40.

エアを注入するときに、フローパスユニット２０と気体の注入対象との内部気圧が安全装置３０の設定する圧力より大きいときに、安全装置３０の弾性体３３が気体圧力に受けて圧縮され、枢設接続孔２１１の気体が貫通孔４１から押しユニット３１を押し離れ、大気へ排出してある。フローパスユニット２０と気体の注入対象との内部気圧が安全装置３０の設定の圧力へ戻るときに、弾性体３３は再び、押しユニット３１を収容溝４０へ移行させ、つっかいをし、気密の効果が得られる。そのときに、フローパスユニット２０と気体の注入対象との内部気圧は安全装置３０の設定の圧力になる。 When injecting air, when the internal air pressure between the flow path unit 20 and the gas injection target is larger than the pressure set by the safety device 30, the elastic body 33 of the safety device 30 is compressed by receiving the gas pressure and pivoted. The gas in the connection hole 211 pushes away the push unit 31 from the through hole 41 and is discharged to the atmosphere. When the internal air pressure between the flow path unit 20 and the gas injection target returns to the pressure set in the safety device 30, the elastic body 33 again moves the push unit 31 to the receiving groove 40, and is sealed, thereby achieving an airtight effect. Is obtained. At that time, the internal air pressure between the flow path unit 20 and the gas injection target becomes the pressure set by the safety device 30.

本案の安全装置の外観図である。It is an external view of the safety device of this proposal. 本案の安全装置の部分断面図である。It is a fragmentary sectional view of the safety device of this plan. 本案の安全装置の部分断面図である。It is a fragmentary sectional view of the safety device of this plan. 本案の安全装置の立体外観図である。It is a three-dimensional external view of the safety device of this proposal. 本案の安全装置の立体分解図である。It is a three-dimensional exploded view of the present safety device. 本案の第一実施例の使用状態図である。It is a use condition figure of the 1st example of this proposal. 本案の第一実施例の使用状態図である。It is a use condition figure of the 1st example of this proposal. 本案の安全装置を調整する状態を示す図面である。It is drawing which shows the state which adjusts the safety device of this plan. 本案の第二実施例の使用状態図である。It is a use condition figure of the 2nd example of this proposal. 本案の第二実施例の使用状態図である。It is a use condition figure of the 2nd example of this proposal. 本案の第三実施例の使用状態図である。It is a use condition figure of the 3rd example of this proposal. 本案の第三実施例の使用状態図である。It is a use condition figure of the 3rd example of this proposal.

Explanation of symbols

１０筒体ユニット（unit）
１１ロッド（rod）
１２筒身
１２１気体の圧縮パス（path）
１３ハンドル（handle）
１４ピストン（piston）
２０フローパスユニット（flow path
unit）
２１台座
２２枢設回転ユニット(unit)
２２１枢設接続孔
２２２エアパス（air path）
２２３通気孔
２３ホース（hose）
２４ノズル（nozzle）
２４１通路
３０安全装置
３１押しユニット（unit）
３１１表面
３１２ Oリング（ring）
３２調整ユニット（unit）
３２１ねじ山
３２２リークホール（leak hole）
３３３調整部
３３弾性体
４０収容溝
４１貫通孔
４２受け面
４３ねじ山 10 Tube unit (unit)
11 Rod
12 Tube
121 Gas compression path
13 Handle
14 Piston
20 Flow path unit (flow path
unit)
21 pedestal
22 Pivot Rotation Unit (unit)
221 pivot connection hole
222 air path
223 Vent
23 hose
24 nozzles (nozzle)
241 Passage 30 Safety device
31 Push unit
311 surface
312 O-ring
32 Adjustment unit
321 Thread 322 Leak hole
333 Adjustment unit 33 elastic body
40 receiving groove
41 Through hole 42 Receiving surface
43 Thread

Claims

In air pumps with safety devices, mainly formed from the following elements:
The cylinder unit is composed of a rod and a cylinder. A gas compression path is formed between both ends of the cylinder, a handle is provided at one end of the rod, a piston is provided at the opposite end of the rod handle, and the piston of the rod reciprocates along the gas compression path. Sliding and moving
The flow path unit has a first end and a second end, the first end is connected to the cylindrical unit, and passes through the gas compression path, and the second end of the flow path unit is connected to the target of gas injection. ,
An air pump characterized in that the safety device is attached to the flow path unit, so that the pressure of the flow path unit is automatically maintained within the set pressure range, besides setting the required injection pressure.

2. The air pump according to claim 1, wherein a housing groove is provided in the flow path unit, and the safety device is installed in the housing groove.

The flow path unit includes a pedestal, a pivoting rotation unit, a hose, and a nozzle. The pedestal is connected to the cylinder, and the pedestal is provided with a pivotal connection hole passing through the gas compression path of the cylinder to pivot. At one end of the unit, there is a pivot part that pivots in the pivot connection hole of the pedestal, the hose is connected between the pivot unit and the nozzle, the receiving groove is provided in the pedestal, and the through hole is formed in the receiving groove The air pump according to claim 2, wherein the air pump is processed and passes through a pivotal connection hole of the base.

The flow path unit includes a pedestal, a pivoting rotation unit, a hose, and a nozzle. The pedestal is connected to the cylinder, and the pedestal is provided with a pivotal connection hole passing through the gas compression path of the cylinder to pivot. One end of the unit has a pivot part that pivots in the pivot connection hole of the pedestal, and an air path is installed in the pivot rotation unit, and the air path passes through the vent hole that penetrates the pivot connection part, and It is connected to the pivot connection hole, the hose is connected between the pivot rotation unit and the nozzle, the receiving groove is provided on one side of the pivot rotation unit, the through hole is processed in the receiving groove, 3. The air pump according to claim 2, wherein the air pump passes through an air path.

The flow path unit includes a pedestal, a pivoting rotation unit, a hose, and a nozzle. The pedestal is connected to the cylinder, and the pedestal is provided with a pivotal connection hole passing through the gas compression path of the cylinder to pivot. At one end of the unit, there is a pivot part that pivots in the pivot connection hole of the pedestal, and an air path is installed in the pivot rotary unit, and the air path passes through the vent hole that penetrates the pivot connection part, and Connected to the pivot connection hole, the hose is connected between the pivot rotation unit and the nozzle, there is a passage through the hose in the nozzle, the receiving groove is provided on one side of the nozzle, and the through hole is in the receiving groove 3. The air pump according to claim 2, wherein the air pump is processed and passes through a passage of a nozzle.

The flow path unit has a nozzle, a gas flow passage is provided in the nozzle, a receiving groove is provided on one side of the nozzle, a through hole is formed in the receiving groove, and passes through the nozzle passage. Item 3. The air pump according to Item 2.

The flow path unit has a pedestal, there is a pivot hole for gas flow in the pedestal, the accommodation groove is provided in the pedestal, the through hole is machined in the accommodation groove, and passes through the pivot hole in the pedestal. The air pump according to claim 2.

The flow path unit has a pivoting rotation unit. There is an air path for gas flow in the pivoting rotary unit, the receiving groove is provided on one side of the pivoting rotary unit, the through hole is machined in the receiving groove, and it passes through the air path of the pivoting rotary unit The air pump according to claim 2.

9. The safety device according to claim 3, wherein the safety device includes a push unit that closes the through hole, an adjustment unit having a leak hole, and an elastic body interposed between the push unit and the adjustment unit. The air pump according to claim 1.

A conical receiving surface is formed at the intersection of the receiving groove and the through hole, a screw thread is formed at the open end of the receiving groove, and the pushing unit forms a conical surface and contacts the receiving surface of the receiving groove. 10. The air pump according to claim 9, wherein a male screw thread is provided on the outer periphery of the adjustment unit and is coupled so as to mesh with the female screw thread of the receiving groove, and the adjustment unit is further provided with an adjustment part.