1362982 六、發明說明： 【發明所屬之技術領域】 本發明與手工工具的技術有關，特別是指一種棘輪結 構。 【先前技術】1362982 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to the art of hand tools, and more particularly to a ratchet structure. [Prior Art]
棘輪結構由於具有單向轉動的逆止效果，因此自開發以 來’在各種I具與裝置上被廣為應用，在多方研究與開發 下棘輪的技術也漸填成熟，後來更發展出能調整棘輪逆止 方向的、纟°構’ > 巾華民國專利申請錢「_216535」、專利 名和棘輪扳手工作頭結構」的技術，不過此種技術在實際 使用後U要雜棘輪的逆止方向，必須旋轉中間的方向 旋紐C方向％紅在施力上並不容易，而且常常有過緊難以 旋動的缺點，於是市而， 由上又開發出它種技術，能讓調整棘輪 逆止方向的動作更為容易； 其中一種如中華民 半民國專利申請案號「093122236」、專利 名稱「高扭力棘輪起子4 〜卞J的技術，如第1圖所示，是在一基 座A穿設一接頭B，兮虹π n '亥接碩B用以連接工具或裝置，且該接Since the ratchet structure has the reverse effect of one-way rotation, it has been widely used in various I tools and devices since its development. The ratchet technology has gradually matured under various research and development, and later it has been developed to adjust the ratchet. In the reverse direction, the structure of the 纟 构 ' > towel Republic of China patent application money "_216535", patent name and ratchet wrench work head structure, but this technology in the actual use of U ratcheting direction of the reverse direction, must Rotating the middle direction of the knob C direction % red is not easy to apply force, and often has the disadvantage of being too tight and difficult to rotate, so the city has developed a technique that allows the adjustment of the ratchet to reverse the direction. The action is easier; one of them is the technology of the Chinese People's Republic of China Patent Application No. "093122236" and the patent name "High Torque Ratchet Screwdriver 4~卞J, as shown in Figure 1, which is a one on the base A. Connector B, 兮虹π n 'Hai Shuo B is used to connect tools or devices, and the connection
頭B外側具有齒部Bi，4 — A 该基座A具有一容納凹槽A1及一位 移GJ槽A2，s亥容納凹播λ，& > 匕Α1供該接頭β穿設，且該容納凹槽 Α1内設有一第一齒土鬼 All與該第一齒塊Al2The outer side of the head B has a tooth portion Bi, 4 - A. The base A has a receiving groove A1 and a displacement GJ groove A2, and the shoal accommodates the concave λ, &> 匕Α1 for the joint β to be pierced, and the a first toothed ghost All and the first toothed block A2 are disposed in the receiving groove Α1
All及一第二齒塊A12 ’該第一齒塊 間又設一彈簧A13，該基座A側邊設 3 1362982 一彈簧A3及一鋼珠A4，以一外蓋C蓋在該基座A外，該外 蓋C具一第一檔塊C1、一第二檔塊C2、一位移塊C3及三凹 槽C4，該第一擋塊C1與該容納凹槽A1内的第一齒塊All 相對，’該第二檔塊C2與該容納凹槽A1内的第二齒塊A12 相對，該位移塊C3容納在該位移凹槽A2内，該鋼珠A4受 該彈簧A3推抵而容納於該外蓋C的其中一凹槽C4内； 調整棘輪的逆止方向時，順時鐘旋轉該外蓋C，如第2 圖所示，該鋼珠A4會位移到該外蓋C的另一凹槽C4内，該 位移塊C3會移動到該位移凹槽A2的一端，該第一擋塊C1 會擋止該第一齒塊All，如此順時鐘轉動該接頭B，該接頭 B的齒部B1會與該第二齒塊A12嚙合，令該接頭B與該基 座A連動，若逆時鐘轉動該接頭B，該接頭B會將該第二齒 塊A12向該第一齒塊All的方向推擠並壓縮該彈簧A13，使 該第二齒塊A12位移並與該接頭B的齒部B1脫離，讓該接 頭B空轉； 反之逆時鐘旋轉該外蓋C，如第3圖所示，該鋼珠A4 會位移到該外蓋C的再一凹槽C4内，該位移塊C3會移動到 該位移凹槽A2的另一端，該第二擋塊C2會擋止該第二齒塊 A12，如此逆時鐘轉動該接頭B，該接頭B的齒部B1會與該 第一齒塊All嚙合，令該接頭B與該基座A連動，若順時鐘 轉動該接頭B，該接頭B會將該第一齒塊All向該第二齒塊 A12的方向推擠並壓縮該彈簧A13，使該第一齒塊All位移 1362982 並與該接頭B的齒部B1脫離，讓該接頭B空轉； 可知只要旋轉該外蓋C便能輕易地調整棘輪的逆止方 向，但前述的技術中，該第一齒塊All與該第二齒塊A12 在該容納凹槽A1内並無定位結構，僅是容納在該容納凹槽 A1内，因此組裝時各元件容易掉落，且裝配上也較不易， 為解決前述各種問題，本發明人便開發出一種棘輪結構。 • 【發明内容】 本發明目的在提供一種棘輪結構，將二齒塊樞接設置， . 且旋轉一外蓋抵頂其中一齒塊，便能調整該棘輪結構的逆止 方向，讓操作與組配更為容易。 為達前述目的，該棘輪結構包含一基座、一接頭、二齒 塊及一外蓋，該基座具二枢柱，該接頭可轉動地設在該基 春座，該接頭外侧具齒部，二該齒塊分別設在該基座的樞柱， 各該齒塊與該接頭的齒部相對，該基座與各該齒塊間具有一 彈性推抵結構，各該彈性推抵結構推動各該齒塊以各該枢柱 為轴心進行轉動，且二該齒塊的轉動方向相反，該外蓋可轉 動地設在該基座，該外蓋具一凸塊，該凸塊供抵頂其中一齒 塊； 如此只轉動該外蓋，便能以該外蓋的凸塊抵頂定位其中 .一齒塊，另一齒塊便與該接頭的齒部嚙合，讓該基座向一方 5 1362982 向轉動時能連動該接頭以驅動工具轉動，該基座向另一方向 轉動時則與該接頭空轉，提供逆止的效果，更換該凸ά抵頂 的齒塊，就能提供反方向轉動的逆止效果，達到調整該棘輪 結構逆止方向的目的； 由於是轉動該外蓋進行調整，因此調整上相當容易，且 各該齒塊是枢設在該基座，因此組配過程相當容易，不會有 以往元件容易脫落掉出的缺點。 另外，該棘輪結構只要使用一齒塊便能與該接頭的齒部 嚙合而提供逆止的效果，也能和前述相同，達到操作與組配 容易的優點，且解決以往元件容易脫落掉出的問題。 【實施方式】 本發明棘輪結構的實施例如第4至5圖所示，包含： 一基座10，具二樞柱11、一容納槽12、二定位塊13、 一卡扣部14及三鋼珠槽15，且三該鋼珠槽15間以二凹道 16連接成一列； 一接頭20，一端設在該基座10的容納槽12内，令該 接頭20可在該容納槽12内轉動，該接頭20另一端為連接 端21，該連接端21供連接套筒、起子頭或接桿等工具，該 接頭20外側具環狀排列的齒部22 ; 一第一齒塊3.0，具有一穿孔31及一齒部32，該基座 1362982 10的一樞柱11插入該第一齒塊30的穿孔31，令該第一齒 塊30枢設在該基座10，該第一齒塊30的齒部32·與該接頭 20的齒部22相對，且該第一齒塊30與該基座10間具有一 彈性推抵結構Z，該彈性推抵結構Z推動該第一齒塊30以 該樞柱11為軸心進行轉動，令該第一齒塊30的齒部32向 該接頭20的齒部22位移； 一第二齒塊40，具有一穿孔41及一齒部42，該基座 10的另一枢柱11插入該第二齒塊.40 .的穿孔41，令該第二 齒塊40枢設在该基座10，該第二齒塊40的齒部42與該接 頭20的齒部22相對，且該第二齒塊40與該基座10間具有 一彈性推抵結構Z，該彈性推抵結構Z推動該第二齒塊40 以該樞柱11為軸心進行轉動，令該第二齒塊40的齒部42 向該接頭20的齒部22位移，且該第一齒塊30及該第二齒 塊40的轉動方向相反，此實施例中，該第一齒塊30及該第 二齒塊40的彈性推抵結構Z為同一者，該彈性推抵結構Z 為一長條狀且彎曲的彈片，該彈片的中段抵頂在該基座10 的卡扣部14，該彈片分別以兩端抵頂該第一齒塊30及該第 二齒塊40 ;以及 一外蓋50，具一凹槽51、一穿孔52、一凸塊53、一彈 簧54及一鋼珠55，該凹槽51位於該外蓋50内部側面，一 C型扣511外側容納在該凹槽51，内側扣合在該基座10的 卡扣部14，令該外蓋50設在該基座10，且該外蓋50可相 7 1362982 對該基座10轉動，該穿孔52供該接頭20的連接端21穿出， 該凸塊53分別與該第一齒塊30及該第二齒塊40相對，該 凸塊53上具一凹洞531，該彈簧54及該鋼珠55依序容納 在該凹洞531内，且該鋼珠55容納在該基座10的其中一鋼 珠槽15内。 首先逆時鐘轉動該外蓋50，如第6圖所示，該鋼珠55 會由該基座10的一鋼珠槽15内通過一凹道16而進入另一 鋼珠槽15，該凸塊53也會抵頂該第一齒塊30，令該第一齒 塊30轉動，且該第一齒塊30的齒部32脫離該接頭20的齒 部22，該凸塊53並與該基座10的一定位塊13夾住該第一 齒塊30，又使推動該第一齒塊30的彈性推抵結構Z蓄力， 如此該第二齒塊40的齒部42便與該接頭20的齒部22嚙 合，該基座10逆時鐘轉動時，該基座10便能以該第二齒塊 40推動該接頭20同步轉動，讓該接頭20能驅動工具轉動， 該基座10順時鐘轉動時，如第7圖所示，該第二齒塊40 轉動，使該第二齒塊40的齒部42脫離該接頭20的齒部22, 讓該基座10與該接頭20空轉，如此便能以該第二齒塊40 達到逆止效果，該彈性推抵結構Z還會以彈性將該第二齒塊 40推抵復位； 若順時鐘轉動該外蓋50，如第8圖所示，該外蓋50的 凸塊53脫離該第一齒塊30，該彈性推抵結構Z會推抵該第 1362982 一齒塊30轉動，令該第一齒塊30的齒部32與該接頭20 的齒部22嚙合，該凸塊53會抵頂該第二齒塊40，令該第 二齒塊40轉動，且該第二齒塊40的齒部42脫離該接頭20 的齒部22，該凸塊53並與該基座10的另一定位塊13夾住 該第二齒塊40，又使推動該第二齒塊40的彈性推抵結構Z 蓄力， 該基座10順時鐘轉動時，該接頭20與該基座10會連 動而同步轉動，該基座10逆時鐘轉動時，如第9圖所示，. 該第一齒塊30會轉動，使該第一齒塊30的齒部32脫離該 接頭20的齒部22，讓該基座10與該接頭20空轉，如此便 能以該第一齒塊3 0達到逆止效果； 可知只要轉動該外蓋50，調整該凸塊53抵頂該第一齒 塊30或該第二齒塊40，便能調整該棘輪結構的逆止方向， 與以往必須轉動中間的方向旋鈕相較，調整更為容易，且該 第一齒塊30及該第二齒塊40是以該基座10的樞柱11樞設 在該基座10，與以往齒塊容納在凹槽内的組配方式相較， 組配過程更容易，也不會有元件容易脫落掉出的缺點。 另外，該基座10與該第一齒塊30及該第二齒塊40間 的彈性推抵結構Z，可如第10圖所示，該基座10分別以一 彈性推抵結構Z推抵該第一齒塊30及該第二齒塊40，且此 實施例中，各該彈性推抵結構Z為一彈片，各該彈片一端插 9 1362982 在該基座10的卡扣部14，另一端分別抵頂該第一齒塊30 及該第二齒塊40，也能分別使該第一齒塊30及該第二齒塊 40以該基座10的枢柱11為軸心進行轉動1且令該第一齒 塊30的齒部32及該第二齒塊40的齒部42向該接頭20的 齒部22位移，該第一齒塊30及該第二齒塊40也朝相反方 向轉動； 轉動該外蓋50，也能調整該外蓋50的凸塊53抵頂該 第一齒塊30或該第二齒塊40，如第11圖所示，以該凸塊 53抵頂該第一齒塊30，可使該第二齒塊40提供逆止的效 果，如第12圖所示，以該凸塊53抵頂該第二齒塊40，可 使該第一齒塊30提供逆止的效果，與前述可達到相同的目 的與功效。 而且，即使單獨使用該第一齒塊30，也能達到逆止的 效果，如第13圖所示，該第一齒塊30的齒部32與該接頭 20的齒部22嚙合，當該基座10順時鐘轉動時，會以該第 一齒塊30推抵該接頭20同步轉動，當該基座10逆時鐘轉 動時，該第一齒塊30會轉動，使該第一齒塊30的齒部32 脫離該接頭20的齒部22，讓該基座10與該接頭20空轉， 如此便能以該第一齒塊30達到逆止效果； 且當如第14圖所示旋轉該外蓋50，便能以該外蓋50 的凸塊53抵頂該第一齒塊30轉動，該第一齒塊30的齒部 1362982 : 32脫離該接頭20的齒部22,讓該接頭20與該基座10之間 空轉，讓該基座10的轉動不會影響該接頭20的轉動。 1362982 【圖式簡單說明】 第1圖 習知棘輪結構的示意圖。 第2圖 習知棘輪結構的第二齒塊提供逆止的示意圖。 第3圖習知棘輪結構的第一齒塊提供逆止的示意圖。 第4圖本發明實施例的分解圖。 第5圖本發明實施例的組合示意圖。 第6圖本發明實施例第一齒塊脫離且第二齒塊提供 逆止效果的示意圖。 第7圖本發明實施例接頭相對第二齒塊空轉的示意 圖。 . 第8圖本發明實施例第二齒塊脫離且第一齒塊提供 逆止效果的示意圖。 第9圖本發明實施例接頭相對第一齒塊空轉的示意 圖。 第10圖本發明實施例基座分別以一彈性推抵結構推 抵第一齒塊及第二齒塊的示意圖。 第11圖第10圖中第二齒塊提供逆止效果的示意圖。 第12圖第10圖中第一齒塊提供逆止效果的示意圖。 第13圖本發明實施例單獨使用第一齒塊且第一齒塊 提供逆止效果的示意圖。 第14圖本發明實施例單獨使用第一齒快且第一齒塊 空轉的示意圖。 12 1362982 【主要元件符號說明】 《習知》 基座A 第一齒塊Al 1 彈簧A13 彈簧A3 容納凹槽A1 第二齒塊A12 位移凹槽A2 鋼珠A4A and a second tooth block A12' is further provided with a spring A13 between the first tooth block, and a side of the base A is provided with a spring A3 and a steel ball A4, and an outer cover C is disposed outside the base A. The outer cover C has a first block C1, a second block C2, a displacement block C3 and a third groove C4. The first block C1 is opposite to the first block All in the receiving groove A1. , the second block C2 is opposite to the second block A12 in the receiving groove A1. The displacement block C3 is received in the displacement groove A2, and the steel ball A4 is pushed by the spring A3 to be accommodated outside. Inside one of the grooves C4 of the cover C; when adjusting the reverse direction of the ratchet, the outer cover C is rotated clockwise, as shown in Fig. 2, the steel ball A4 is displaced into the other groove C4 of the outer cover C The displacement block C3 will move to one end of the displacement groove A2, and the first block C1 will block the first tooth block All, so that the joint B is rotated clockwise, and the tooth portion B1 of the joint B will be The second block A12 is engaged, so that the joint B is interlocked with the base A. If the joint B is rotated counterclockwise, the joint B pushes and compresses the second block A12 toward the first block All. The spring A 13, the second tooth block A12 is displaced and disengaged from the tooth portion B1 of the joint B, and the joint B is idling; otherwise, the outer cover C is rotated counterclockwise, as shown in Fig. 3, the steel ball A4 is displaced to the In the further groove C4 of the outer cover C, the displacement block C3 will move to the other end of the displacement groove A2, and the second block C2 will block the second tooth block A12, thus rotating the joint B counterclockwise. The tooth portion B1 of the joint B is engaged with the first tooth block All, so that the joint B is interlocked with the base A. If the joint B is rotated clockwise, the joint B will guide the first tooth block All to The direction of the second tooth block A12 pushes and compresses the spring A13 to displace the first tooth block All 1362982 and disengage from the tooth portion B1 of the joint B, so that the joint B is idling; it can be seen that the outer cover C can be rotated The reverse direction of the ratchet is easily adjusted. However, in the foregoing technique, the first block A1 and the second block A12 have no positioning structure in the receiving groove A1, and are only accommodated in the receiving groove A1. Therefore, the components are easily dropped during assembly, and assembly is also difficult. In order to solve the various problems described above, the inventors developed Kind of ratchet structure. SUMMARY OF THE INVENTION The object of the present invention is to provide a ratchet structure, which is provided by pivotally connecting two teeth blocks, and rotating an outer cover against one of the tooth blocks to adjust the reverse direction of the ratchet structure, allowing operation and grouping Matching is easier. For the above purpose, the ratchet structure comprises a base, a joint, a two-toothed block and an outer cover, the base has two pivot posts, the joint is rotatably disposed on the base spring, and the outer side of the joint has teeth The two tooth blocks are respectively disposed on the pivot post of the base, and each of the tooth blocks is opposite to the tooth portion of the joint. The base and each of the tooth blocks have an elastic pushing structure, and each of the elastic pushing structures pushes Each of the blocks rotates with each of the pivots as an axis, and the two blocks rotate in opposite directions. The outer cover is rotatably disposed on the base, and the outer cover has a protrusion, and the protrusion is provided One of the top teeth; thus only rotating the outer cover, the one of the teeth can be positioned by the bump of the outer cover, and the other tooth block engages with the tooth of the joint, so that the base is facing one side 5 1362982 The joint can be linked to rotate the tool when it rotates. When the base rotates in the other direction, it will idle with the joint, providing a back-stop effect. Replacing the block of the crown against the top can provide the opposite direction. The reverse effect of the rotation achieves the purpose of adjusting the direction of the ratchet structure in the reverse direction; Outer cover is adjusted, and therefore relatively easy adjustment, and each of the toothed block is pivoted at the base, and therefore fairly easy to process with the group, there is no conventional element off easily fall out of drawbacks. In addition, the ratchet structure can provide a reverse effect by engaging a tooth portion of the joint by using a tooth block, and can also achieve the advantages of easy operation and assembly as described above, and solve the problem that the conventional component is easily detached. problem. Embodiments of the present invention, as shown in FIGS. 4 to 5, include: a base 10 having two pivot posts 11, a receiving slot 12, two positioning blocks 13, a latching portion 14, and three steel balls. The slot 15 and the three ball slots 15 are connected in a row by two recesses 16; a joint 20 is disposed at one end in the receiving slot 12 of the base 10, so that the joint 20 can be rotated in the receiving slot 12, The other end of the joint 20 is a connecting end 21 for connecting a sleeve, a screwdriver head or a post, and the outer side of the joint 20 has an annularly arranged tooth portion 22; a first tooth block 3.0 having a through hole 31 And a toothed portion 32, a pivot post 11 of the base 1362982 is inserted into the through hole 31 of the first tooth block 30, and the first tooth block 30 is pivoted on the base 10, and the tooth of the first tooth block 30 The portion 32 is opposite to the tooth portion 22 of the joint 20, and the first tooth block 30 and the base 10 have an elastic pushing structure Z, and the elastic pushing structure Z pushes the first tooth block 30 to the pivot The column 11 is rotated about the axis to displace the tooth portion 32 of the first tooth block 30 toward the tooth portion 22 of the joint 20; a second tooth block 40 having a through hole 41 and a tooth portion 42 The other pivot post 11 of the base 10 is inserted into the through hole 41 of the second tooth block 40. The second tooth block 40 is pivoted on the base 10, and the tooth portion 42 of the second tooth block 40 is The tooth portion 22 of the joint 20 is opposite, and the second tooth block 40 and the base 10 have an elastic pushing structure Z, and the elastic pushing structure Z pushes the second tooth block 40 with the pivot column 11 as an axis. Rotating, the tooth portion 42 of the second tooth block 40 is displaced toward the tooth portion 22 of the joint 20, and the first tooth block 30 and the second tooth block 40 are rotated in opposite directions. In this embodiment, the first The elastic pushing structure Z of the one tooth block 30 and the second tooth block 40 is the same, and the elastic pushing structure Z is a long and curved elastic piece, and the middle part of the elastic piece abuts the card of the base 10 The buckle portion 14 has the two ends abutting against the first tooth block 30 and the second tooth block 40, and an outer cover 50 having a groove 51, a through hole 52, a protrusion 53 and a spring 54. And a steel ball 55, the groove 51 is located on the inner side surface of the outer cover 50, a C-shaped buckle 511 is accommodated in the groove 51 outside, and the inner side is fastened to the buckle portion 14 of the base 10, so that the outer cover 50 is provided At the base 10, The outer cover 50 is rotatable to the base 10 by a phase 1 , which is provided for the connection end 21 of the joint 20 , and the protrusion 53 is opposite to the first tooth block 30 and the second tooth block 40 , respectively. The protrusion 53 has a recess 531. The spring 54 and the steel ball 55 are sequentially received in the recess 531, and the steel ball 55 is received in one of the ball grooves 15 of the base 10. First, the outer cover 50 is rotated counterclockwise. As shown in FIG. 6, the steel ball 55 passes through a recess 16 in the ball groove 15 of the base 10 and enters another steel ball groove 15, and the convex block 53 also Abutting the first tooth block 30, the first tooth block 30 is rotated, and the tooth portion 32 of the first tooth block 30 is disengaged from the tooth portion 22 of the joint 20, and the bump 53 is combined with the base 10 The positioning block 13 clamps the first tooth block 30, and in turn pushes the elastic force of the first tooth block 30 against the structure Z, so that the tooth portion 42 of the second tooth block 40 and the tooth portion 22 of the joint 20 When the base 10 is rotated counterclockwise, the base 10 can push the joint 20 to rotate synchronously with the second tooth block 40, so that the joint 20 can drive the tool to rotate. When the base 10 rotates clockwise, such as As shown in FIG. 7, the second tooth block 40 is rotated to disengage the tooth portion 42 of the second tooth block 40 from the tooth portion 22 of the joint 20, so that the base 10 and the joint 20 are idling, so that the The second tooth block 40 reaches a backstop effect, and the elastic pushing structure Z also elastically pushes the second tooth block 40 against the reset; if the outer cover 50 is rotated clockwise, as shown in FIG. 8, the outer cover 50 The protrusion 53 is disengaged from the first tooth block 30, and the elastic pushing structure Z pushes against the 1362982, a tooth block 30, so that the tooth portion 32 of the first tooth block 30 meshes with the tooth portion 22 of the joint 20. The second block 40 is rotated against the second block 40, and the tooth portion 42 of the second block 40 is disengaged from the tooth portion 22 of the joint 20, and the bump 53 is The other positioning block 13 of the base 10 clamps the second block 40, and the elastic force of the second block 40 is pushed against the structure Z. When the base 10 rotates clockwise, the joint 20 and the joint 20 The base 10 is synchronously rotated, and when the base 10 is rotated counterclockwise, as shown in FIG. 9, the first tooth block 30 is rotated to disengage the tooth portion 32 of the first tooth block 30 from the joint 20. The tooth portion 22 allows the base 10 and the joint 20 to idle, so that the first tooth block 30 can achieve the reverse effect; it can be seen that the outer cover 50 is rotated, and the protrusion 53 is adjusted to abut the first The tooth block 30 or the second tooth block 40 can adjust the reverse direction of the ratchet structure, and the adjustment is easier compared with the direction knob that has to be rotated in the past, and the first tooth block 30 and The second tooth block 40 is pivotally mounted on the base 10 by the pivot post 11 of the base 10. Compared with the conventional manner in which the prior tooth block is accommodated in the groove, the assembly process is easier and there are no components. The disadvantage of easy to fall off. In addition, the elastic pushing structure Z between the base 10 and the first tooth block 30 and the second tooth block 40 can be pushed by the elastic pushing structure Z as shown in FIG. 10 . The first tooth block 30 and the second tooth block 40, and in this embodiment, each of the elastic pushing structures Z is a spring piece, and each of the elastic pieces is inserted into the latching portion 14 of the base 10 at one end, and the other The first tooth block 30 and the second tooth block 40 are respectively pivoted by the pivot column 11 of the base 10 as the axis of the first tooth block 30 and the second tooth block 40, respectively. The tooth portion 32 of the first tooth block 30 and the tooth portion 42 of the second tooth block 40 are displaced toward the tooth portion 22 of the joint 20, and the first tooth block 30 and the second tooth block 40 are also facing in opposite directions. Rotating the outer cover 50, the protrusion 53 of the outer cover 50 can also be adjusted to abut the first tooth block 30 or the second tooth block 40, as shown in FIG. The first tooth block 30 can provide the second tooth block 40 with a backstop effect. As shown in FIG. 12, the first tooth block 30 can be provided by the protrusion 53 abutting the second tooth block 40. The effect of the backstop is the same as the foregoing Purpose and efficacy. Moreover, even if the first tooth block 30 is used alone, the effect of the backstop can be achieved. As shown in Fig. 13, the tooth portion 32 of the first tooth block 30 meshes with the tooth portion 22 of the joint 20, when the base When the seat 10 rotates clockwise, the first tooth block 30 pushes against the joint 20 to rotate synchronously. When the base 10 rotates counterclockwise, the first tooth block 30 rotates to make the first tooth block 30 The tooth portion 32 is disengaged from the tooth portion 22 of the joint 20, and the base 10 and the joint 20 are idling, so that the first tooth block 30 can achieve the reverse effect; and when the outer cover is rotated as shown in FIG. 50, the first tooth block 30 can be rotated by the protrusion 53 of the outer cover 50. The tooth portion 1362982: 32 of the first tooth block 30 is separated from the tooth portion 22 of the joint 20, and the joint 20 is The base 10 is idling so that the rotation of the base 10 does not affect the rotation of the joint 20. 1362982 [Simple description of the drawing] Fig. 1 Schematic diagram of a conventional ratchet structure. Figure 2 The second tooth block of the conventional ratchet structure provides a schematic representation of the backstop. Figure 3 shows a schematic representation of the first tooth block of the conventional ratchet structure. Figure 4 is an exploded view of an embodiment of the invention. Figure 5 is a schematic view showing the combination of the embodiments of the present invention. Fig. 6 is a schematic view showing the first tooth block being detached and the second tooth block providing a backstop effect in the embodiment of the present invention. Fig. 7 is a schematic view showing the joint of the embodiment of the present invention with respect to the second tooth block idling. Figure 8 is a schematic illustration of the second tooth block being detached and the first tooth block providing a backstop effect in accordance with an embodiment of the present invention. Figure 9 is a schematic illustration of the joint of the embodiment of the invention idling relative to the first tooth block. Fig. 10 is a schematic view showing the pedestal of the embodiment of the present invention with a resilient pushing structure against the first tooth block and the second tooth block, respectively. The second block in Fig. 11 is a schematic view showing the effect of the backstop. The first tooth block of Fig. 12 and Fig. 10 provides a schematic diagram of the effect of the backstop. Fig. 13 is a schematic view showing the use of the first tooth block alone and the first tooth block providing a backstop effect in the embodiment of the present invention. Fig. 14 is a schematic view showing the first embodiment of the present invention using the first tooth fast and the first tooth block idling. 12 1362982 [Description of main component symbols] "Knowledge" Base A First tooth block Al 1 Spring A13 Spring A3 Acoustic groove A1 Second tooth block A12 Displacement groove A2 Steel ball A4
接頭B 外蓋C 第二檔塊C2 凹槽C4 《本發明》 基座10 容納槽12 卡扣部14 ώ道16 齒部Β1 第一檔塊C1 位移塊C3 枢柱11 定位塊13 鋼珠槽15 接頭20 連接端21 第一齒塊30 齒部32 穿孔41 外蓋50 C型扣511 齒部22 穿孔31 第二齒塊40 齒部42 凹槽51 穿孔52 13 1362982Connector B Cover C Second block C2 Groove C4 <<The present invention》 Base 10 accommodating groove 12 Snap portion 14 Ramp 16 Tooth Β 1 First block C1 Displacement block C3 Pivot column 11 Positioning block 13 Ball groove 15 Connector 20 connection end 21 first tooth block 30 tooth portion 32 perforation 41 outer cover 50 C-type buckle 511 tooth portion 22 perforation 31 second tooth block 40 tooth portion 42 groove 51 perforation 52 13 1362982
凸塊53 凹洞531 彈簧54 鋼珠55 彈性推抵結構ZBump 53 recess 531 spring 54 steel ball 55 elastic push structure Z
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