TW201604464A - Airtight assembly structure of pneumatic tool quick coupler - Google Patents

Abstract

The present invention provides an airtight assembly structure of a pneumatic tool quick coupler, which is designed as a novel structure for achieving an airtight relation at an assembly location between a quick coupler and a pneumatic tool body. The quick coupler is made of a plastic material. A periphery of a through hole formed in a joining groove where the quick coupler is screwed and fastened to an air inlet tube of the pneumatic tool body is an integrally formed with a ring plug portion. An outer circumferential surface of the ring plug portion has a tapering design having a minimum outer diameter less than an inner diameter hole of the air inlet tube of the pneumatic tool and a maximum outer diameter slightly larger than the inner diameter hole of the air inlet tube of the pneumatic tool. Thus, when the quick coupler is screwed and assembled with the air inlet tube of the pneumatic tool body, the ring plug portion may be plugged against an inner wall of the inner diameter hole of the air inlet tube, wherein the deeper the screwing level is, the tighter the abutting relation will be, so as to achieve an ideal and firm airtight effect and eliminate the use of a conventional sealing ring and problems and drawbacks incurring therefrom, and thus achieving excellent industrial availability and practical value.

Description

氣動工具快速接頭之組接氣密結構 Pneumatic tool quick joint assembly airtight structure

本發明係關於一種氣動工具快速接頭之組接氣密結構，主要是針對氣動工具與空壓設備之輸氣管的連接需求而設計，透過其快速接頭與氣動工具本體鎖接結合之接合槽內部的斜錐環塞部設計，使其在快速接頭鎖接於氣動工具本體時，可輕易取得氣密組接關係，免除習知額外密止環之使用，據以賦予更佳之產業利用價值者。 The invention relates to a combined airtight structure of a pneumatic tool quick joint, which is mainly designed for the connection requirement of a pneumatic tool and a gas pipe of a pneumatic device, and the inside of the joint groove which is coupled with the pneumatic tool body through the quick joint thereof The tapered cone plug is designed to make it easy to obtain a hermetic connection when the quick connector is locked to the pneumatic tool body, thereby eliminating the use of the conventional extra-closed ring and thereby giving better industrial value.

按，噴漆槍、氣動起子等氣動工具，顧名思義，即是以空壓設備所輸送的氣流作為動力，藉以驅動其功能構件而達成預期的操作功能，而為了方便氣動工具與空壓設備的連接結合，通常將其連接部位採快速接頭設計，藉以提供快速插結與拔離之便利性。 According to the pneumatic tools such as spray guns and pneumatic screwdrivers, as the name suggests, the airflow sent by the air compressors is used as the power to drive the functional components to achieve the desired operational functions, and the connection between the pneumatic tools and the air compressors is facilitated. The joints are usually designed with a quick joint to provide quick insertion and removal.

而此類快速接頭，因經常會面臨與空壓設備之輸氣管的反覆插拔動作，所以在一段時間後，難免會有結構磨損現象，影響其插結的氣密性，為了避免影響其動力傳輸，此類快速接頭通常並不會與氣動工具採一體式結構設計，而是將快速接頭採分離式獨立製造後，再加以鎖接結合於氣動工具本體所預製的進氣管端，並在兩者的鎖接部位利用密止環來取得氣密關係，使其得以透過快速接頭與空壓設備的插接而取得理想的供氣驅動關係，同時可賦予快速接頭磨損時之可替換性者。 Such quick joints often face the reverse insertion and removal of the gas pipelines of the air compressors, so after a period of time, structural wear and tear will inevitably occur, affecting the airtightness of the plugging, in order to avoid affecting its power. Transmission, such quick couplings usually do not have a one-piece design with pneumatic tools, but the quick joints are separately manufactured separately, and then locked and coupled to the intake pipe end prefabricated by the pneumatic tool body, and The locking part of the two uses a tight ring to obtain a gas-tight relationship, so that the quick connection and the air pressure device can be inserted to obtain an ideal air supply driving relationship, and at the same time, the replacement of the quick joint wear can be imparted. .

惟，前述快速接頭與氣動工具本體的進氣管在組接上，必須 利用密止環作為止密構件，在鎖合過程中若施力不當，可能影響其氣密效果，甚至損及密止環的結構，不但增加成本與組配的麻煩外，更因該等密止環容易有磨損及質變問題，導致有使用壽命的限制，實不利於產業上之利用性與實用價值，有必要再設法加以解決改善者。 However, the aforementioned quick joint and the intake pipe of the pneumatic tool body are connected, The use of a dense ring as a stop member, if improperly applied during the locking process, may affect its airtight effect, or even damage the structure of the tight ring, which not only increases the cost and the trouble of assembly, but also because of the density. The ring is prone to wear and quality problems, resulting in a limitation of service life, which is not conducive to industrial utilization and practical value, and it is necessary to try to solve the improvement.

有鑑於習知氣動工具本體之進氣管與快速接頭的組接結合上，必須利用密止環等構件取得氣密效果所衍生之問題與缺失，發明人特著手進行研究解決之道，基於其從事相關產業之多年經驗與技術，進而研發出本發明之組接氣密結構。 In view of the combination of the intake pipe and the quick joint of the conventional pneumatic tool body, it is necessary to use the components such as the seal ring to obtain the problems and lack of the airtight effect, and the inventor specially studies and solves the problem based on the Engaged in years of experience and technology in related industries, and then developed the airtight structure of the present invention.

為解決習知氣動工具有快速接頭組接必須採密止環取得氣密效果所可能衍生之問題與缺失，本發明乃利用於快速接頭接合槽內部通孔週緣所一體成型之斜錐狀環塞部設計，使其將快速接頭鎖接於氣動工具本體的進氣管時，得以該環塞部塞抵於進氣管的內壁，據以取得絕佳之氣密關係，免除額外之密止環使用者。 In order to solve the problems and disadvantages that the conventional pneumatic tools have the quick joint assembly, it is necessary to obtain the airtight effect of the sealing ring. The present invention is a tapered tapered ring plug which is integrally formed on the periphery of the through hole of the quick joint engaging groove. The design is such that when the quick connector is locked to the intake pipe of the pneumatic tool body, the ring plug is inserted against the inner wall of the intake pipe, thereby obtaining an excellent airtight relationship and eliminating the extra tightness. Ring user.

本發明針對氣動工具之快速接頭組接所設計的氣密結構，利用快速接頭接合槽內所一體成型之環塞部，使其在將快速接頭鎖接於氣動工具本體時，得以直接取得氣密效果，且其螺合程度愈深入，其氣密效果愈理想，據以不但在組裝上更為簡便，且因免除了密止環之使用，使其成本得以減降，並杜絕密止環所可能衍生之問題與缺失者。 The airtight structure designed for the quick joint assembly of the pneumatic tool utilizes the integral plug ring portion in the quick joint joint groove to directly obtain the airtightness when the quick joint is locked to the pneumatic tool body. The effect, and the deeper the degree of screwing, the more ideal the airtight effect, which is not only easier to assemble, but also eliminates the use of the dense ring, so that the cost can be reduced, and the tight ring is eliminated. Possible problems and missing.

(10)‧‧‧氣動工具 (10) ‧‧‧ pneumatic tools

(11)‧‧‧進氣管 (11)‧‧‧Intake pipe

(12)‧‧‧內徑孔 (12) ‧‧‧ inner diameter hole

(20)‧‧‧快速接頭 (20)‧‧‧Quick joints

(21)‧‧‧接頭部 (21)‧‧‧Connector

(22)‧‧‧接合槽 (22)‧‧‧ Engagement slots

(23)‧‧‧通孔 (23)‧‧‧through holes

(24)‧‧‧環塞部 (24) ‧‧‧The Ministry of the Environment

第1圖：係本發明較佳實施例之結構示意圖。 Figure 1 is a schematic view showing the structure of a preferred embodiment of the present invention.

第2圖：係本發明較佳實施例之局部結構示意圖。 Figure 2 is a partial structural view of a preferred embodiment of the present invention.

第3圖：係本發明較佳實施例之整體結構分解示意圖。 Figure 3 is a schematic exploded view of the overall structure of the preferred embodiment of the present invention.

第4圖：係本發明較佳實施例之局部結構分解示意圖。 Figure 4 is a schematic exploded view of a partial structure of a preferred embodiment of the present invention.

第5圖：係本發明較佳實施例之局部結構組合關係示意圖。 Figure 5 is a schematic view showing the relationship of the partial structure of the preferred embodiment of the present invention.

請參閱第1~5圖所示，係以噴漆槍為例，說明本發明實施於氣動工具與快速接頭的組接結合之較佳實施例，如圖所示，其主要是於氣動工具(10)(圖中所示之噴漆槍)的本體預定位置製設有外螺紋型態之進氣管(11)，該進氣管(11)設有內徑孔(12)連通氣動工具(10)內部之導氣通道(未顯示)，而所述的快速接頭(20)一端乃製設有供空壓設備之輸氣管(未繪)插組之接頭部(21)，以及另端用以螺合組接於氣動工具(10)之進氣管(11)的內螺紋型態接合槽(22)；其中：該快速接頭(20)的接合槽(22)內徑與型態，乃與氣動工具(10)的進氣管(11)呈相符契合關係，在接合槽(22)中心設有一貫通另端接頭部(21)之通孔(23)，在該通孔(23)的周緣乃一體成型有一預定高度之環塞部(24)，該環塞部(24)的外緣面係作遞減之斜錐度設計，其最小外徑乃小於氣動工具(10)進氣管(11)的內徑孔(12)，而其最大外徑則略大於氣動工具(10)進氣管(11)的內徑孔(12)，據以在將快速接頭(20)鎖合組接於氣動工具(10)本體的進氣管(11)時，該環塞部(24)乃得以塞抵於進氣管(11)的內徑孔(12)內壁，且隨著快速接頭(20)的接合槽(22) 螺合程度愈深入，則其環塞部(24)與近氣管(11)的內徑孔(12)之抵止關係愈緊密，從而可獲得理想而確實之氣密效果，免除習知密止環之使用；據此，本發明在氣動工具與空壓設備連接所常用的快速接頭設計上，在利用氣動工具本體接組快速接頭而賦予空壓設備輸氣管的快速插組拔離功能達成架構下，透過快速接頭於接合槽內部所成型之斜直錐環塞部，使其在將快速接頭螺合組接於氣動工具本體的進氣管時，得以無需使用額外的密止環等構件，直接以接合槽內部的環塞部塞抵於進氣管內徑孔的內壁，達到絕佳的氣密效果，如此一來，不但在組接換裝上更為簡單、便利，且無密止環的成本支出，更不致有密止環易疲乏變形或質變而衍生之諸多問題與缺失，從而可賦予極佳之產業利用性與實用價值者；綜上所述，本發明針對氣動工具與快速接頭組接所研發之組接氣密結構，透過於快速接頭接合槽內部通孔周緣所成型之斜錐環塞部，確能取代習知密止環等止密構件，達成快速接頭與氣動工具組接所需之氣密關係，以維持氣動工具之功能正常運作，並得以徹底解決習知結構所存在及可能衍生之諸多問題與缺失，整體而言，確深具產業利用性與實用價值，誠不失為一優異、突出之創新設計，爰依法提出專利申請。 Referring to Figures 1 to 5, a spray gun is taken as an example to illustrate a preferred embodiment of the present invention in combination with a pneumatic tool and a quick connector. As shown, it is mainly a pneumatic tool (10). (The spray gun shown in the figure) is provided with a male threaded inlet pipe (11) at a predetermined position, and the intake pipe (11) is provided with an inner diameter hole (12) communicating with a pneumatic tool (10) An internal air guiding passage (not shown), and one end of the quick joint (20) is provided with a joint portion (21) for a gas pipe (not shown) of the air compressor, and the other end is used for screwing An internal thread type engagement groove (22) connected to the intake pipe (11) of the pneumatic tool (10); wherein: the inner diameter and shape of the engagement groove (22) of the quick joint (20) is pneumatic The intake pipe (11) of the tool (10) has a matching relationship, and a through hole (23) penetrating through the other end joint portion (21) is provided at the center of the joint groove (22), and the periphery of the through hole (23) is A ring plug portion (24) having a predetermined height is integrally formed, and an outer peripheral surface of the ring plug portion (24) is designed to have a decreasing tapered shape, and a minimum outer diameter is smaller than that of the pneumatic tool (10) intake pipe (11) Inner diameter hole (12), while its maximum outer diameter is The inner diameter hole (12) of the intake pipe (11) of the pneumatic tool (10) is larger than the air intake pipe (11) of the body of the pneumatic tool (10) when the quick joint (20) is locked and assembled. The ring plug portion (24) is plugged against the inner wall of the inner diameter hole (12) of the intake pipe (11), and with the engagement groove (22) of the quick connector (20) The deeper the degree of screwing, the closer the relationship between the ring plug portion (24) and the inner diameter hole (12) of the proximal air tube (11), so that a desired and accurate airtight effect can be obtained, and the conventional dense ring is eliminated. According to the invention, the quick joint design commonly used in the connection between the pneumatic tool and the air compressor device is achieved by using the pneumatic tool body to connect the quick joint and the quick plugging function of the air pressure pipe of the air pressure device is achieved. The straight taper ring plug formed by the quick joint in the inner side of the joint groove enables the assembly of the quick joint to the intake pipe of the pneumatic tool body without using an additional sealing ring and the like. The ring plug inside the engaging groove abuts against the inner wall of the inner diameter hole of the intake pipe to achieve an excellent airtight effect, so that not only is the assembly and replacement more simple and convenient, and there is no dense ring. The cost of the product, not to mention the many problems and lacks caused by the deformation or qualitative change of the ring, which can give excellent industrial utilization and practical value; in summary, the present invention is directed to pneumatic tools and quick connectors. Group research and development The airtight structure is assembled, and the tapered cone plug formed by the periphery of the through hole in the quick joint engaging groove can replace the tight member such as the conventional tight ring, and achieve the airtight relationship required for the quick joint and the pneumatic tool assembly. In order to maintain the normal operation of the functions of the pneumatic tools, and to completely solve the problems and defects that exist in the conventional structure and may be derived from the overall situation, it is indeed an excellent and outstanding innovation. Design, 提出 file a patent application according to law.

(10)‧‧‧氣動工具 (10) ‧‧‧ pneumatic tools

(11)‧‧‧進氣管 (11)‧‧‧Intake pipe

(12)‧‧‧內徑孔 (12) ‧‧‧ inner diameter hole

(20)‧‧‧快速接頭 (20)‧‧‧Quick joints

(21)‧‧‧接頭部 (21)‧‧‧Connector

(22)‧‧‧接合槽 (22)‧‧‧ Engagement slots

(23)‧‧‧通孔 (23)‧‧‧through holes

(24)‧‧‧環塞部 (24) ‧‧‧The Ministry of the Environment

Claims (2)

一種氣動工具快速接頭之組接氣密結構，所述的快速接頭一端乃設為插組結合空壓設備之輸氣管的接頭部，而其另端則為螺合鎖接於氣動工具進氣管之接合槽，該接合槽設有相符契合氣動工具進氣管外螺紋型態之內螺紋，接合槽內更設有貫通接頭部之通孔，使得以將空壓設備輸氣管之出氣經快速接頭通孔導入氣動工具進氣管之內徑孔，以達驅動氣動工具之效能；其特徵係在於：該快速接頭於其接合槽內部通孔的周緣乃一體成型有一斜錐型態之環塞部，當快速接頭鎖接結合於氣動工具之進氣管時，該環塞部將可塞抵於氣動工具進氣管之內徑孔內部，以取得兩者之氣密關係者。 A pneumatic tool quick connector is connected with a gas tight structure, and one end of the quick joint is set as a joint portion of the gas pipe of the air compressor, and the other end is screwed to the air tool air intake pipe. The engaging groove is provided with an internal thread conforming to the external thread type of the air inlet pipe of the pneumatic tool, and the through hole of the connecting joint portion is further provided in the engaging groove, so that the air outlet of the air pressure device is passed through the quick joint The through hole is introduced into the inner diameter hole of the pneumatic tool intake pipe to drive the performance of the pneumatic tool; the feature is that the quick connector is integrally formed with a tapered cone type plug portion at the periphery of the through hole inside the joint groove When the quick connector is coupled to the air intake pipe of the pneumatic tool, the ring plug portion can be plugged into the inner diameter hole of the air tool intake pipe to obtain the airtight relationship between the two. 依據申請專利範圍第1項所述之氣動工具快速接頭之組接氣密結構，其中該快速接頭結合槽之環塞部，其最小外徑乃小於氣動工具進氣管的內徑孔，而其最大外徑則略大於氣動工具進氣管的內徑孔者。 The airtight structure of the pneumatic tool quick connector according to claim 1, wherein the quick joint is combined with the annular plug portion of the groove, and the minimum outer diameter is smaller than the inner diameter hole of the pneumatic tool intake pipe, and The maximum outer diameter is slightly larger than the inner diameter hole of the pneumatic tool intake pipe.