201204576 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種胎壓偵測器，特別是指一種安穿 在輪胎的氣嘴上，並用來偵測胎壓的胎壓偵測器。 【先前技術】201204576 VI. Description of the Invention: [Technical Field] The present invention relates to a tire pressure detector, and more particularly to a tire pressure detector that is worn on a gas nozzle of a tire and used to detect tire pressure . [Prior Art]
參閱圖1，已知之胎麼偵測器是安裝於一輪胎之氣嘴 5上，其包含一個底座8、一螺鎖於該底座8上並共同界 定出-氣密空間7之外蓋6,以及一容置於該氣密空間7 内之偵測單tl 9。該底座8包括一供該輪胎之氣嘴5鎖合 之鎖固部81、一個安裝在該鎖固部81内的胎嘴頂啟單: 82,以及一個往上突出並具有一外螺紋的底座螺部83。該 外蓋6具有一個頂壁61，以及一個由該頂壁61外周圍往 下延伸並和底座螺部83螺合的外蓋螺部 9包括-電池單元…電連接於該電池單元91:: 爽固於該外蓋6與底座8間且具備胎壓谓測、微處理與射 頻等機能之感知模組92。 -般胎壓债測器在使用時是安裝於汽車之輪胎上，即 絲壓偵測器會隨著輪胎高速轉動，且無可避免的，會隨 者汽車產生劇烈的震動。而習知胎壓偵測器單純以螺鎖方 式將外蓋6及底座8螺接在—叔 — *起，不僅容易因為震動而產 生鬆脫’由於該偵測單元9 之感知核組92僅是被夾固於 該外蓋6與底座8間，因此，典, 、 备外盍6及底座8相對鬆脫 時’不僅氣密空間7無法保拄> — + 呆持軋岔，而喪失檢測胎壓的功 能’組裝在該氣密空間7內 内。P的偵測単元9也容易損壞。 201204576 而本案申請人所申請之證書號1326249發明專利，主 要以捲包方式來結合。此專利雖然可以確保較佳的氣密性 及組裝穩固性，但由於元件不易拆解，故在更換電池 較不方便。 【發明内容】 因此，本發明之㈣，即在提供一種易於更換零件的 同時，具有較佳組裝穩固性及氣密性的胎壓偵測器。 於是，本發明之胎壓偵測器，包含一套筒、—外蓋、 -鎖固裝置’及一偵測單元。該套筒包括一界定出_容置 空間的圍繞壁’以及一個由該圍繞壁往内突出㈣一抵靠環 壁。該圍繞壁具有一個朝向$容置空間並與抵靠環壁間隔 的内螺紋部，所述抵靠環壁具有一個朝向該容置空間的第 一抵接面。㈣外蓋具有一個和該套筒之第一抵接面抵靠 的外蓋突壁。該鎖固裝置是螺鎖在該套筒之内螺紋部上並 與氣嘴連接，同時將該外蓋之外蓋突壁抵向套筒之第一抵 接面，其具有一個與該外蓋共同界定出一氣密空間的鎖固 座。該摘測單元用以偵測胎壓，並安裝在該氣密空間内。 本發明之功效在於：藉由所述套筒與鎖固裝置彼此 相互對接螺合之組裝設計，該套筒之抵靠環壁與圍繞壁可 -起充分包覆並固定住外蓋突壁以及鎖固纟，使該胎壓偵 測器除了忐以較為簡易方式的組裝外，並可獲得較佳結構 穩固性、以及氣密性。而進一步地，可藉由轉動該套筒使 其脫離與鎖固裝置之螺合，而方便使用者接續檢修該氣密 空間内異常或損壞之偵測單元。 201204576 【實施方式】 有關本發明之前述及其他技術内容、特點與功效’在 以下配合參考圖式之_個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖2、圖3及1114 4r ^ 〇〇 圖，本發明胎壓偵測器之較佳實 施例是安裝於輪胎之-氣嘴1G上，並包含：—套筒卜一 外蓋2、一鎖固裝置3,及一伯測單元4。 ^ 本實施例之套筒i為金屬材料製成’並包括一個圍繞 -中心軸線設置並界；^出—容置^間13的圍繞壁u，及 -自該圍繞壁11頂周緣向中心轴線突出之抵靠環壁η。 該圍繞壁11具有一個與該抵靠環壁12間隔並朝向該容置 空間的内螺紋部⑴，而該抵靠環㈣具有一與該容 置空間η相通的穿孔121，以及—垂直於該圍繞壁心 内周面並朝向該容置空間13的環形第_抵接面122。 該外蓋2包括一突出於該套筒1之穿孔m的突出部 21’及一位在該突出部21下方並抵靠在該套筒i之第一 抵接面122下方的外蓋突壁22,該外蓋突壁22具有一自 該突出部21底周緣向外突出的環突部223,及一由該環突 部223向下延伸的限位部224 ’該環突部223具卜環: 該第—抵接面122抵#的第二抵接面221，該限位部以 具有-個環形並位在該第二抵接s 221下方的第 222。於本實施例中該外蓋2是由例如塑膠等絕緣材質製 成。 本實施例之鎖固裝置3亦為金屬材質製成，並包括— 5 201204576 個與外蓋2共同界定出一氣密空間35的鎖固座3ι，該鎖 2座31具有一個環形的底壁3U、一環自該底壁311往上 突出並和外蓋2之外蓋突壁22内外套合的對接環壁313， 以及一個自該底壁311往下突出並和氣嘴1G對接的氣嘴电 裝壁314,該底壁311具有一朝向輪胎方向的迫緊抵面 ⑴，以及—環朝向外蓋突壁22㈣二失面315。所述鎖 固裝置3還包括一個夾設在第一及第二夹面222、⑴間 並為橡膠材質製成的氣封環圈34、—縣在該套筒丄之内 螺紋部111處的螺接主座32’以及數個螺裝在該螺接主座 32上的迫緊螺絲33。所述氣封環圈34其截斷面不限為矩 形’亦可為概呈圓形之態樣。 32具有一個與該套筒丨之内螺紋部 322、一個朝向該鎖固座31之迫緊抵面 該螺接主座 螺合的外螺紋部 312的頂環面323、—個底環面324,以及數個等角度地貫 穿該頂環面323及底環面324的迫緊螺孔321，所述迫緊 螺絲33是個別地螺裝在該螺接主座32的迫緊螺孔321 内’並個別具有-個抵接在該迫緊抵面312下方的迫緊端 331。 該偵測單元4是置放於氣密空間35 $，並包括一可 感測氣密空間35内部壓力的感知模組41、一電連接於該Referring to FIG. 1, a known tire detector is mounted on a nozzle 5 of a tire, and includes a base 8 and a screw on the base 8 to jointly define an outer cover 6 of an airtight space 7. And a detection unit tl 9 accommodated in the airtight space 7. The base 8 includes a locking portion 81 for locking the air nozzle 5 of the tire, a bead ejector tab 82 mounted in the locking portion 81, and a base projecting upwardly and having an external thread. Screw portion 83. The outer cover 6 has a top wall 61, and a cover screw portion 9 extending downward from the outer periphery of the top wall 61 and screwed into the base screw portion 83 includes a battery unit ... electrically connected to the battery unit 91: The sensing module 92 is provided between the outer cover 6 and the base 8 and has functions such as tire pressure measurement, micro processing and radio frequency. The tire pressure tester is installed on the tire of the car when it is used. That is, the wire pressure detector will rotate at high speed with the tire, and it is unavoidable, which will cause severe vibrations in the car. However, the conventional tire pressure detector simply screws the outer cover 6 and the base 8 in a screw-locking manner, and is not only easy to loosen due to vibrations, because the sensing core group 92 of the detecting unit 9 is only It is clamped between the outer cover 6 and the base 8. Therefore, when the outer casing 6 and the base 8 are relatively loose, the airtight space 7 cannot be secured. The function of detecting the tire pressure is assembled in the airtight space 7. The detection unit 9 of P is also easily damaged. 201204576 The patent number of the certificate No. 1326249 applied for by the applicant in this case is mainly combined by the package method. Although this patent can ensure better airtightness and assembly stability, it is inconvenient to replace the battery because the components are not easily disassembled. SUMMARY OF THE INVENTION Therefore, (4) of the present invention provides a tire pressure detector having better assembly stability and airtightness while providing an easy-to-replace part. Thus, the tire pressure detector of the present invention comprises a sleeve, an outer cover, a locking device and a detecting unit. The sleeve includes a surrounding wall ′ defining a accommodating space and a wall (4) abutting against the ring wall. The surrounding wall has an internal threaded portion facing the accommodating space and spaced from the abutment ring wall, the abutment ring wall having a first abutting surface facing the accommodating space. (4) The outer cover has an outer cover projecting wall abutting against the first abutting surface of the sleeve. The locking device is screwed on the inner threaded portion of the sleeve and connected to the air nozzle, and the outer cover protruding wall abuts against the first abutting surface of the sleeve, and has a cover and the outer cover A locking seat that defines an airtight space. The picking unit is configured to detect tire pressure and is installed in the airtight space. The utility model has the advantages that the sleeve and the locking device are mutually abutted and screwed together, and the abutting ring wall and the surrounding wall of the sleeve can fully cover and fix the outer cover protruding wall and The locking mechanism enables the tire pressure detector to be assembled in a relatively simple manner and obtains better structural stability and airtightness. Further, the sleeve can be disengaged from the locking device by rotating the sleeve, so that the user can continue to repair the abnormality or damage detection unit in the airtight space. The above-mentioned and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to Figures 2, 3 and 1114, a preferred embodiment of the tire pressure detector of the present invention is mounted on the tire-air nozzle 1G and comprises: - a sleeve, an outer cover 2, a The locking device 3 and a primary measuring unit 4. The sleeve i of the present embodiment is made of a metal material and includes a surrounding wall which is disposed around the center axis, and a surrounding wall u that accommodates the space 13, and - from the top circumference of the surrounding wall 11 to the central axis The line protrudes against the ring wall η. The surrounding wall 11 has an internal thread portion (1) spaced from the abutting ring wall 12 and facing the accommodating space, and the abutting ring (4) has a through hole 121 communicating with the accommodating space η, and - perpendicular to the An annular abutting surface 122 surrounding the inner peripheral surface of the wall and facing the accommodating space 13. The outer cover 2 includes a protruding portion 21' protruding from the through hole m of the sleeve 1, and a cover protruding wall below the protruding portion 21 and abutting against the first abutting surface 122 of the sleeve i 22, the outer cover protruding wall 22 has an annular protrusion 223 protruding outward from the bottom periphery of the protruding portion 21, and a limiting portion 224 extending downward from the annular protruding portion 223. Ring: The first abutting surface 122 abuts the second abutting surface 221 of the #, the limiting portion has a 222th portion with a ring shape and below the second abutting s 221 . In the present embodiment, the outer cover 2 is made of an insulating material such as plastic. The locking device 3 of the present embodiment is also made of a metal material, and includes - 5 201204576 a locking seat 3 ι which defines an airtight space 35 together with the outer cover 2, the locking 2 seat 31 has an annular bottom wall 3U Abutting ring wall 313 protruding upward from the bottom wall 311 and fitting with the outer cover 2 of the outer cover 2, and a nozzle electric cable protruding downward from the bottom wall 311 and abutting the air nozzle 1G The wall 314 has a pressing face (1) facing the tire direction, and the ring faces the outer cover wall 22 (four) two facets 315. The locking device 3 further includes a gas seal ring 34 sandwiched between the first and second clamping faces 222, (1) and made of rubber material, and the county is located at the inner threaded portion 111 of the sleeve The main seat 32' is screwed and a plurality of tightening screws 33 screwed onto the main seat 32. The gas seal ring 34 has a cross section which is not limited to a rectangular shape, and may be a substantially circular shape. 32 has a top ring surface 323, a bottom ring surface 324, with an internal threaded portion 322 of the sleeve, a male threaded portion 312 that is screwed toward the screwing main seat toward the locking seat 31. And a plurality of pressing screw holes 321 extending through the top ring surface 323 and the bottom ring surface 324 at equal angles, and the pressing screws 33 are individually screwed into the tightening screw holes 321 of the screwing main seat 32. 'And individually have a pressing end 331 that abuts against the pressing surface 312. The detecting unit 4 is disposed in the airtight space 35 $ and includes a sensing module 41 that can sense the internal pressure of the airtight space 35, and is electrically connected thereto.
感知模組41的電池组42，以好_ I w以及加強該電池組42以及感 知模組41於氣密空間3 5内夕m知&田^ 1 J 鬥之固位效果的限位緩衝墊43。 本實施例之限位緩衝墊43為橡膠材質所製成。 本實施例於組裝時，先蔣所；+、Α μ , 町无將所逑感知模組41、電池組 201204576 =及限位緩衝墊43置放由鎖固座31及外蓋2所界定的氣 在工間35内’並於該外蓋2及鎖固座31間爽設該氣封環 圈34。而該套筒】是框套在外蓋2及鎖固座^的外周圍， 藉由將螺接主座32螺鎖在套筒1的内螺紋部U1上，以及 在該螺接主座32的各個迫緊㈣321内螺裝迫緊螺絲 33 ’最後再分別以—樹月旨5膠合封閉住該等迫緊螺絲w 下方以防止使用者隨意拆卸，即完成組合。The battery pack 42 of the sensing module 41 is _ I w and the limit buffer for enhancing the retention effect of the battery pack 42 and the sensing module 41 in the airtight space 3 5 Pad 43. The position cushion 43 of this embodiment is made of a rubber material. In the embodiment, in the assembly, the first Chiang Kai-shek; +, Α μ, the town no-sense sensing module 41, the battery pack 201204576 = and the limit cushion 43 are placed by the locking seat 31 and the outer cover 2 The gas is inside the work chamber 35' and the gas seal ring 34 is cooled between the outer cover 2 and the lock seat 31. The sleeve is sleeved on the outer periphery of the outer cover 2 and the locking seat, by screwing the screw main seat 32 to the internal thread portion U1 of the sleeve 1, and at the screw main seat 32. Each of the tightening (four) 321 screws and tightening screws 33' finally closes the pressing screws w with the glue of the tree to prevent the user from disassembling at random, that is, the combination is completed.
本實施例之胎壓偵測器在組裝後，可以藉該螺接主座 32頂推該鎖固座31 ’而將外蓋2之外蓋突壁22、氣封環 圈34以及鎖固座31夾緊於該套筒】之第一抵接面122及 螺接主座32的頂環面323間外，還可以利用該等迫緊螺 絲33抵靠在該鎖固座31的迫緊抵面3i2下方，而達到將 該鎖固座3"主該外蓋2方向迫緊的目的。在雙重的螺接 及塵迫之後，*僅可以提高該氣密空帛35的氣密性，藉 由該等迫緊螺絲、33的頂抵，亦可達到螺裝後不易鬆脫的 效果。另夕卜，該外蓋突壁22之限位部224是環抱在該鎖 固座31之對接環壁313外，如此亦有助於該外蓋2组裝 之穩固性。故本發明之整體組裝結構不僅穩固、不易鬆 脫’亦具有氣密性佳的優點。 能 範 屬 准以上所述者，僅為本發明之較佳實施例而已，當不 以此限定本發明實施之範圍，即大凡依本發明中請專利 圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 本發明專利涵蓋之範圍内。 圖式簡單說明】 201204576 圖1是一種習知胎壓偵測器的組合剖視圖； 圖2是一立體分解圖，顯示本發明胎壓偵測器之一較 佳實施例； 圖3是該較佳實施例之一剖視組合圖，顯示二迫緊螺 絲預備鎖合前之組合態樣；及 圖4是類似圖3的視圖，顯示將該等迫緊螺絲鎖合後 之態樣。After the tire pressure detector of the embodiment is assembled, the screwing main seat 32 can be used to push the locking seat 31 ′, and the outer cover 2 covers the outer wall 22, the air sealing ring 34 and the locking seat. 31 is clamped between the first abutting surface 122 of the sleeve and the top ring surface 323 of the screw main seat 32, and the pressing screw 33 can be used to abut against the locking seat 31. Below the face 3i2, the purpose of tightening the lock 3" the main cover 2 is achieved. After the double screwing and dusting, * can only improve the airtightness of the airtight space 35, and by the pressing of the tightening screws 33, the effect of loosening after screwing can be achieved. In addition, the limiting portion 224 of the outer cover wall 22 is surrounded by the butting ring wall 313 of the locking seat 31, which also contributes to the stability of assembly of the outer cover 2. Therefore, the overall assembled structure of the present invention is not only stable, but also easy to loosen, and has the advantage of good airtightness. The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent of the patent and the invention description in the present invention. Variations and modifications are still within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a conventional tire pressure detector; FIG. 2 is an exploded perspective view showing a preferred embodiment of the tire pressure detector of the present invention; FIG. One embodiment of the embodiment is a cross-sectional view showing a combination of the two tightening screws before the lock is prepared; and FIG. 4 is a view similar to FIG. 3, showing the state in which the tightening screws are locked.
201204576201204576
【主要元件符號說明】 1 ....... …·套筒 312 ... •…迫緊抵面 10…… …·氣嘴 313… •…對接環壁 11…… …·圍繞壁 314… •…氣嘴組裝壁 111… •…内螺紋部 315 ... •…第一夾面 12…… •…抵靠環壁 32…… 螺接主座 m... …·穿孔 321… •…迫緊螺孔 122… —第 抵接面 322… •…外螺紋部 13…… •…容置空間 323… •…頂環面 2 ....... .···外蓋 324… •…底環面 21…… …·突出部 33…… •…迫緊螺絲 22…… •…外蓋突壁 331… •…迫緊端 221 ··· …·第二抵接面 34…… •…氣封環圈 222… —第 炎面 35·...· •…氣密空間 223 ·... …·環突部 4…… •…偵測單元 224… •…限位部 41 ••… •…感知模組 3 ....... •…鎖固裝置 42·...· •…電池組 31…… •…鎖固座 43••… •…限位緩衝墊 311… •…底壁 5…… 树月曰[Description of main component symbols] 1. . . . ... sleeve 312 ... • ... pressing surface 10 ... ... gas nozzle 313 ... • ... butt ring wall 11 ... ... ... around wall 314 ... •...air nozzle assembly wall 111... •...internal threaded portion 315 ... •...first clamping surface 12... •... against ring wall 32... screwed main seat m... ... perforated 321... ...tightening screw hole 122... - abutting surface 322... • outer thread portion 13... •... housing space 323... • top ring surface 2 . . . . •...Bottom ring surface 21...··Protruding part 33...•...Tightening screw 22...•...Outer cover protruding wall 331...•...Tightening end 221 ·····Second abutting surface 34... •...Air seal ring 222...—The first face 35·...· •...Airtight space 223 ·...·End ring 4... •...Detection unit 224... •...Limit part 41 • •... •...sensing module 3 ....... •...locking device 42·...·•...battery pack 31... •...locking seat 43••... •...limit cushion 311... •...Bottom wall 5...