TWI648138B

TWI648138B - Pipe cutting device

Info

Publication number: TWI648138B
Application number: TW106104948A
Authority: TW
Inventors: 鄭人豪; 鄭宇傑
Original assignee: 鄭人豪; 鄭宇傑
Priority date: 2017-02-15
Filing date: 2017-02-15
Publication date: 2019-01-21
Also published as: TW201831293A

Abstract

本發明係包括一手動鉗、一刀片及一控制鈕。手動鉗具有一弧形軌、一更換開口、一軸孔及一軸件；弧形軌具有一內凹槽。刀片設於手動鉗內，並具有一刀片軸孔及一控制孔，軸件穿過刀片軸孔，將刀片樞設於軸孔。控制鈕穿設於弧形軌，並具有一刀片限制部及一擋部；刀片限制部插設於控制孔。當控制鈕移動至對應內凹槽，可上提而退離控制孔，並藉擋部擋止於內凹槽，再將軸件抽離軸孔及刀片軸孔，刀片即可從更換開口抽離，反向操作即可更換新刀片。故，本案達到兼具不需拆殼即可更換刀片，與可快速移動刀片至所要之位置等優點。The invention includes a hand pliers, a blade and a control button. The manual clamp has an arcuate rail, a replacement opening, a shaft hole and a shaft member; the curved rail has an inner groove. The blade is disposed in the manual clamp and has a blade shaft hole and a control hole, and the shaft member passes through the blade shaft hole to pivot the blade to the shaft hole. The control button is disposed on the curved rail and has a blade limiting portion and a blocking portion; the blade limiting portion is inserted into the control hole. When the control button is moved to the corresponding inner groove, it can be lifted up and retracted from the control hole, and the retaining portion is stopped in the inner groove, and then the shaft member is pulled away from the shaft hole and the blade shaft hole, and the blade can be pumped from the replacement opening. The new blade can be replaced by reverse operation. Therefore, in this case, the blade can be replaced without removing the shell, and the blade can be quickly moved to the desired position.

Description

切管裝置Pipe cutting device

本發明係有關一種切管裝置，尤指一種兼具不需拆殼即可更換刀片，與可快速移動刀片至所要之位置之切管裝置。The invention relates to a pipe cutting device, in particular to a pipe cutting device which can replace a blade without removing the shell and can quickly move the blade to a desired position.

傳統之切管裝置(例如為切管鉗，圖中未示)，其刀片在更換時需要將外殼整個拆開，再將中央銷拔出且勾住刀片之彈簧也要分離，才能將刀片取出。反之，若要裝入新刀片，也要反向進行上述動作，因此，整個更換刀片之作業十分麻煩。其次，傳統之切管裝置在進刀時，只能一格一格的方式將刀片推進，無法一次快速移動，也造成使用上之不便。有鑑於此，必需研發出可解決上述習用缺點之技術。The traditional pipe cutting device (for example, pipe cutting pliers, not shown), the blade needs to be completely disassembled when the blade is replaced, and the center pin is pulled out and the spring of the blade is also separated to take the blade out. . On the other hand, if a new blade is to be loaded, the above action is reversed, so that the entire blade replacement operation is troublesome. Secondly, the conventional pipe cutting device can only advance the blade in a one-frame manner when feeding, and cannot move at a time, which also causes inconvenience in use. In view of this, it is necessary to develop a technique that can solve the above disadvantages.

本發明之目的，在於提供一種切管裝置，其兼具不需拆殼即可更換刀片，與可快速移動刀片至所要之位置等優點。特別是，本發明所欲解決之問題係在於傳統在更換時需要將外殼整個拆開，再將中央銷拔出且勾住刀片之彈簧也要分離，才能將刀片取出。反之，若要裝入新刀片，也要反向進行上述動作，因此，整個更換刀片之作業十分麻煩。其次，傳統之切管裝置在進刀時，只能一格一格的方式將刀片推進，無法一次快速移動，也造成使用上之不便等問題。解決上述問題之技術手段係提供一種切管裝置，其包括：一手動鉗，係設有一殼體及一活動握柄；該殼體係具有一弧形軌、一更換開口、一軸孔及一軸件；該弧形軌具有一第一端、一第二端及一內凹槽，該內凹槽係鄰近該第一端；該活動握柄係樞接於該殼體；一刀片，係設於該殼體內，並具有一刀片軸孔及一控制孔，該軸件係穿過該刀片軸孔，用以將該刀片樞設於該軸孔；一控制鈕，係穿設於該弧形軌；該控制鈕具有一頭部、一桿部、一刀片限制部及一擋部；該頭部係外露於該弧形軌；該桿部係插設於該弧形軌，該刀片限制部係插設於該控制孔；該擋部係從該桿部上朝橫向延伸，並介於該頭部與該刀片限制部之間；藉此，當該控制鈕移動至該第一端時，係具有一上移位置及一下壓位置；當在該上移位置，該擋部係進入該內凹槽而被限制於該第一端，該刀片限制部抽離該控制孔，並當該軸件抽離該軸孔及該刀片軸孔，該刀片係可從該更換開口抽離更換；當在該下壓位置；該擋部係退離該內凹槽，該刀片限制部***該控制孔，該軸件***該軸孔及該刀片軸孔，該刀片係可被固定於該殼體。本發明之上述目的與優點，不難從下述所選用實施例之詳細說明與附圖中，獲得深入瞭解。茲以下列實施例並配合圖式詳細說明本發明於後：It is an object of the present invention to provide a pipe cutting device which has the advantages of replacing the blade without removing the casing and moving the blade to a desired position. In particular, the problem to be solved by the present invention is that conventionally, the outer casing needs to be disassembled when it is replaced, and the central pin is pulled out and the spring that hooks the blade is also separated to take out the blade. On the other hand, if a new blade is to be loaded, the above action is reversed, so that the entire blade replacement operation is troublesome. Secondly, when the traditional pipe cutting device is fed, the blade can only be pushed one by one, and cannot be moved at a time, which also causes inconvenience in use and the like. The technical means for solving the above problems is to provide a pipe cutting device, comprising: a manual clamp having a casing and a movable grip; the casing having an arcuate rail, a replacement opening, a shaft hole and a shaft member; The curved rail has a first end, a second end and an inner groove, the inner groove is adjacent to the first end; the movable grip is pivotally connected to the housing; a blade is disposed on the The inside of the housing has a blade shaft hole and a control hole, the shaft member passes through the blade shaft hole for pivoting the blade to the shaft hole; a control button is disposed on the curved rail; The control button has a head, a rod portion, a blade limiting portion and a blocking portion; the head portion is exposed on the curved rail; the rod portion is inserted into the curved rail, and the blade limiting portion is inserted Provided in the control hole; the blocking portion extends laterally from the rod portion and is interposed between the head portion and the blade restricting portion; thereby, when the control button is moved to the first end, An up position and a down position; when in the up position, the block enters the inner groove and is limited to the first End, the blade limiting portion is pulled away from the control hole, and when the shaft member is pulled away from the shaft hole and the blade shaft hole, the blade can be pulled away from the replacement opening; when in the depressed position; the blocking portion The inner recess is retracted, the blade restricting portion is inserted into the control hole, the shaft member is inserted into the shaft hole and the blade shaft hole, and the blade can be fixed to the housing. The above objects and advantages of the present invention will be readily understood from the following detailed description of the preferred embodiments illustrated herein. The invention will be described in detail in the following examples in conjunction with the drawings:

參閱第1、第2A、第3A及第5圖，本發明係為一切管裝置，其包括一手動鉗10、一刀片20及一控制鈕30。關於該手動鉗10，係設有一殼體10A及一活動握柄10B；該殼體10A係具有一弧形軌11、一更換開口12、一軸孔13及一軸件14。該弧形軌11具有一第一端111、一第二端112及一內凹槽113(參閱第7B、第8A及第8B圖)，該內凹槽113係鄰近該第一端111；該活動握柄10B係樞接於該殼體10A。關於該刀片20，係設於該殼體10A內，並具有一刀片軸孔21及一控制孔22，該軸件14係穿過該刀片軸孔21，用以將該刀片20樞設於該軸孔13。關於該控制鈕30，係穿設於該弧形軌11；該控制鈕30具有一頭部31、一桿部32、一刀片限制部33及一擋部34；該頭部31係外露於該弧形軌11；該桿部32係插設於該弧形軌11，該刀片限制部33係插設於該控制孔22；該擋部34係從該桿部22上朝橫向延伸，並介於該頭部31與該刀片限制部33之間。藉此，當該控制鈕30移動至該第一端111時，係具有一上移位置P1及一下壓位置P2；當在該上移位置P1(參閱第8A圖)，該擋部34係進入該內凹槽113而被限制於該第一端，該刀片限制部33抽離該控制孔22，並當該軸件14抽離該軸孔13及該刀片軸孔21，該刀片20係可從該更換開口12抽離更換(如第2B圖所示)。當在該下壓位置P2(參閱第8B圖)；該擋部34係退離該內凹槽113，該刀片限制部33***該控制孔22，該軸件14***該軸孔13及該刀片軸孔21，該刀片20係可被固定於該殼體10A。實務上，該殼體10A又有一工作開口15，其係鄰近該更換開口12，當該殼體10A與該活動握柄10B相對夾合，該工作開口15係供該刀片20進行剪切(通常是進行切管)。該手動鉗10又具有一單向制動機構10C，其包括一單向擋止件16及一扭力彈簧17，該扭力彈簧17係以一端固定於該殼體10A，並以另端固定於該單向擋止件16。該刀片20對應該單向擋止件16，而具有一單向制動齒部23，其供該刀片20單向卡合於該單向擋止件16。參閱第5及第6圖，該控制鈕30可再包括一彈性件35；該桿部32對應該彈性件35，而具有一環凹槽321；該彈性件35係一端固定於該殼體10A，且另端固定於該環凹槽321。藉此，當該控制鈕30位於該下壓位置P2，係可推動該控制鈕30於該弧形軌11內移動(如第7A圖所示，可於該第一端111與該第二端112之間移動)，而可帶動該刀片20於該工作開口15內快速單向移動(如第4圖所示，假設快速移動至一待剪切位置PA，該彈性件35同步被拉伸，唯圖面未顯示，合先陳明)，當放開該控制鈕30，該刀片20係被該彈性件35拉住，且該單向制齒部23係被該單向擋止件16擋止(可參考第3A圖之卡止定位對應關係)，而可被定位。參閱第3A圖，本發明又具有一解除連桿40，係具有一連桿軸心41、一解除端部42及一被動端部43，該連桿軸心41係供該解除連桿40可轉動的設於該活動握柄10B，該解除端部42係對應該單向擋止件16。該活動握柄10B對應該被動端部43，而具有一反向推掣部18。藉此，當將該活動握柄10B朝該殼體10A的反向扳開(如第3B圖)，該反向推掣部18係向上頂抵該被動端部43，該解除連桿40係以該連桿軸心41於該活動握柄10B上轉動，該解除端部42係向下壓制該單向擋止件16(壓縮該扭力彈簧17而移動至一釋放位置PM)，該單向制動齒部23脫離該單向擋止件16，則該彈性件35將該刀片20拉動復位。並當放開該活動握柄10B(回到如第3A圖之狀態)，則該扭力彈簧17推動該單向擋止件16復位卡合於該單向制動齒部23(公知單向定位裝置之技術原理，為業界悉知，恕不贅述)。本發明之重點在於，當該刀片20需要換刀時，只要下列兩個動作即可達成： [a] 先將該控制鈕30退回該弧形軌之該第一端111(可參閱第7A及第7B圖)，再(用手指)將該頭部31拉起至該上移位置P1(如第8A圖所示)，該刀片限制部33退離該控制孔22。 [b] 將該軸件14拔出。 [c] 該刀片20係對應該更換開口12，且不被該刀片限制部33及該軸件14限制，而可從該更換開口12將該刀片20拔出。而要置入該(新)刀片20時，係先將該刀片20從該更換開口12置入該殼體10A內，並將該軸件14***該刀片軸孔21及該軸孔13，初步先將該刀片20固定，再將該頭部31下壓至該下壓位置P2，該刀片限制部33***該控制孔22，即可完成換刀作業，十分方便。本發明之優點及功效係如下所述： [1] 不需拆殼即可更換刀片。先將該控制鈕退回該弧形軌之該第一端，再拉起至該上移位置，則該刀片限制部退離該控制孔，再將該軸件拔出，即可從該更換開口抽換該刀片。完全不用拆開該殼體。故，不需拆殼即可更換刀片。 [2] 可快速移動刀片至所要之位置。當該控制鈕位於該下壓位置，可推動該控制鈕於該弧形軌內移動，而帶動該刀片於該工作開口內快速單向移動至定位。故，可快速移動刀片至所要之位置。以上僅是藉由較佳實施例詳細說明本發明，對於該實施例所做的任何簡單修改與變化，皆不脫離本發明之精神與範圍。Referring to Figures 1, 2A, 3A and 5, the present invention is a tubular device comprising a hand pliers 10, a blade 20 and a control button 30. The manual clamp 10 is provided with a casing 10A and a movable grip 10B. The casing 10A has an arcuate rail 11, a replacement opening 12, a shaft hole 13 and a shaft member 14. The curved rail 11 has a first end 111, a second end 112 and an inner recess 113 (see FIGS. 7B, 8A and 8B). The inner recess 113 is adjacent to the first end 111; The movable grip 10B is pivotally connected to the housing 10A. The blade 20 is disposed in the housing 10A and has a blade shaft hole 21 and a control hole 22, and the shaft member 14 passes through the blade shaft hole 21 for pivoting the blade 20 to the blade 20 Shaft hole 13. The control button 30 is disposed on the curved rail 11; the control button 30 has a head 31, a rod portion 32, a blade limiting portion 33 and a blocking portion 34; the head portion 31 is exposed to the The arcuate rail 11 is inserted into the arcuate rail 11 , and the blade limiting portion 33 is inserted into the control hole 22 . The retaining portion 34 extends laterally from the stem portion 22 and Between the head 31 and the blade restricting portion 33. Thereby, when the control button 30 is moved to the first end 111, it has an up position P1 and a lower pressure position P2; when in the up position P1 (see FIG. 8A), the block 34 enters The inner groove 113 is restricted to the first end, the blade restricting portion 33 is pulled away from the control hole 22, and when the shaft member 14 is pulled away from the shaft hole 13 and the blade shaft hole 21, the blade 20 can be The replacement opening 12 is removed from the replacement opening (as shown in Fig. 2B). When in the depressed position P2 (see FIG. 8B); the stop 34 is retracted from the inner recess 113, the blade restricting portion 33 is inserted into the control hole 22, the shaft member 14 is inserted into the shaft hole 13 and the blade The shaft hole 21, the blade 20 can be fixed to the housing 10A. In practice, the housing 10A has a working opening 15 adjacent to the replacement opening 12, and when the housing 10A is opposite to the movable grip 10B, the working opening 15 is for cutting the blade 20 (usually Is to cut the pipe). The manual forceps 10 further has a one-way brake mechanism 10C, which includes a one-way stop member 16 and a torsion spring 17 fixed to the housing 10A at one end and fixed to the single end at the other end. To the stopper 16. The blade 20 corresponds to the one-way stop member 16 and has a one-way brake toothing 23 for the blade 20 to be unidirectionally engaged with the one-way stop member 16. Referring to FIGS. 5 and 6, the control button 30 can further include an elastic member 35; the rod portion 32 corresponds to the elastic member 35 and has a ring groove 321; the elastic member 35 is fixed at one end to the housing 10A. And the other end is fixed to the ring groove 321 . Thereby, when the control button 30 is located at the pressing position P2, the control button 30 can be pushed to move in the curved rail 11 (as shown in FIG. 7A, at the first end 111 and the second end) Moving between 112), the blade 20 can be quickly moved in one direction in the working opening 15 (as shown in FIG. 4, the elastic member 35 is synchronously stretched, assuming rapid movement to a to-be-cut position PA, The only surface is not shown, and the control knob 30 is released. The blade 20 is pulled by the elastic member 35, and the one-way toothed portion 23 is blocked by the one-way stopper 16. (Refer to the card positioning relationship in Figure 3A), but can be positioned. Referring to FIG. 3A, the present invention further has a release link 40 having a link shaft 41, a release end portion 42 and a passive end portion 43. The link shaft 41 is provided for the release link 40. Rotating is provided on the movable grip 10B, and the releasing end portion 42 corresponds to the one-way stopper 16. The movable grip 10B corresponds to the passive end portion 43 and has a reverse pusher portion 18. Thereby, when the movable grip 10B is pulled away from the reverse direction of the housing 10A (as shown in FIG. 3B), the reverse push portion 18 is upwardly abutted against the passive end portion 43, and the release link 40 is attached. Rotating the connecting rod shaft 41 on the movable grip 10B, the releasing end portion 42 presses the one-way stopper 16 downward (compressing the torsion spring 17 to move to a release position PM), the one-way When the brake tooth portion 23 is disengaged from the one-way stopper 16, the elastic member 35 pulls the blade 20 to be reset. And when the movable grip 10B is released (returning to the state as shown in FIG. 3A), the torsion spring 17 pushes the one-way stopper 16 to be resetly engaged with the one-way brake tooth portion 23 (known one-way positioning device) The technical principle is known to the industry and will not be discussed. The focus of the present invention is that when the blade 20 requires a tool change, the following two actions can be achieved: [a] The control button 30 is first returned to the first end 111 of the curved track (see section 7A and 7B), the head 31 is pulled up (to the upper shift position P1) (as shown in FIG. 8A), and the blade restricting portion 33 is retracted from the control hole 22. [b] Pull out the shaft member 14. [c] The blade 20 is adapted to replace the opening 12 and is not restricted by the blade restraining portion 33 and the shaft member 14, and the blade 20 can be pulled out from the replacement opening 12. When the (new) blade 20 is to be inserted, the blade 20 is first inserted into the housing 10A from the replacement opening 12, and the shaft member 14 is inserted into the blade shaft hole 21 and the shaft hole 13, preliminary The blade 20 is first fixed, and the head 31 is pressed down to the pressing position P2. The blade restricting portion 33 is inserted into the control hole 22 to complete the tool changing operation, which is very convenient. The advantages and functions of the present invention are as follows: [1] The blade can be replaced without removing the shell. First, the control button is returned to the first end of the arc-shaped rail, and then pulled up to the up-shifting position, the blade limiting portion is retracted from the control hole, and the shaft member is pulled out, and the replacement opening can be removed from the opening. Replace the blade. It is not necessary to disassemble the housing at all. Therefore, the blade can be replaced without removing the shell. [2] Quickly move the blade to the desired position. When the control button is in the depressed position, the control button can be pushed to move in the curved rail, and the blade is driven to move in a one-way direction to the positioning in the working opening. Therefore, the blade can be quickly moved to the desired position. The present invention has been described in detail with reference to the preferred embodiments of the present invention, without departing from the spirit and scope of the invention.

10‧‧‧手動鉗 10‧‧‧Manual pliers

10A‧‧‧殼體 10A‧‧‧shell

10B‧‧‧活動握柄 10B‧‧‧ Activity grip

10C‧‧‧單向制動機構 10C‧‧‧One-way brake mechanism

11‧‧‧弧形軌 11‧‧‧ Curved rail

111‧‧‧第一端 111‧‧‧ first end

112‧‧‧第二端 112‧‧‧ second end

113‧‧‧內凹槽 113‧‧‧ Inside groove

12‧‧‧更換開口 12‧‧‧Replacement opening

13‧‧‧軸孔 13‧‧‧Axis hole

14‧‧‧軸件 14‧‧‧ shaft parts

15‧‧‧工作開口 15‧‧‧Work opening

16‧‧‧單向擋止件 16‧‧‧One-way stop

17‧‧‧扭力彈簧 17‧‧‧Torque spring

18‧‧‧反向推掣部 18‧‧‧Reverse Promotion Department

20‧‧‧刀片 20‧‧‧blade

21‧‧‧刀片軸孔 21‧‧‧blade hole

22‧‧‧控制孔 22‧‧‧Control hole

23‧‧‧單向制動齒部 23‧‧‧One-way brake tooth

30‧‧‧控制鈕 30‧‧‧Control button

31‧‧‧頭部 31‧‧‧ head

32‧‧‧桿部 32‧‧‧ pole

321‧‧‧環凹槽 321‧‧‧ ring groove

33‧‧‧刀片限制部 33‧‧‧ Blade Restriction Department

34‧‧‧擋部 34‧‧ ‧ blocking

35‧‧‧彈性件 35‧‧‧Flexible parts

40‧‧‧解除連桿 40‧‧‧Remove the connecting rod

41‧‧‧連桿軸心 41‧‧‧Connector shaft

42‧‧‧解除端部 42‧‧‧Remove the end

43‧‧‧被動端部 43‧‧‧ Passive end

P1‧‧‧上移位置 P1‧‧‧Upshift position

P2‧‧‧下壓位置 P2‧‧‧down position

PA‧‧‧待剪切位置 PA‧‧‧ to be cut position

PM‧‧‧釋放位置 PM‧‧‧ release position

第1圖係本發明之分解之示意圖第2A圖係本發明之外觀之示意圖第2B圖係本發明之不需拆殼即可抽離刀片之示意圖第3A圖係本發明之各元件對應關係之示意圖第3B圖係第3A圖之部分元件之動作對應關係之示意圖第4圖係係本發明之刀片快速移動至定位之示意圖第5圖係本發明之控制鈕之示意圖第6圖係第5圖之剖視圖第7A圖係本發明之控制鈕於弧形軌內移動之示意圖第7B圖係本發明之內凹槽與弧形軌之對應關係之示意圖第8A圖係本發明之控制鈕位於上移位置之示意圖第8B圖係本發明之控制鈕位於下壓位置之示意圖1 is a schematic view of the decomposition of the present invention, FIG. 2A is a schematic view of the appearance of the present invention, and FIG. 2B is a schematic view of the present invention, which can be pulled out of the blade without removing the casing. FIG. 3A is a correspondence diagram of the components of the present invention. FIG. 3B is a schematic diagram showing the action correspondence of some components of FIG. 3A. FIG. 4 is a schematic diagram of the blade moving to the positioning of the present invention. FIG. 5 is a schematic diagram of the control button of the present invention. FIG. 7A is a schematic view showing the movement of the control knob of the present invention in a curved rail. FIG. 7B is a schematic diagram showing the correspondence between the inner groove and the curved rail of the present invention. FIG. 8A is a control knob of the present invention which is moved upward. Figure 8B is a schematic view of the control knob of the present invention in a depressed position

Claims

一種切管裝置，係包括：一手動鉗，係設有一殼體及一活動握柄；該殼體係具有一弧形軌、一更換開口、一軸孔及一軸件；該弧形軌具有一第一端、一第二端及一內凹槽，該內凹槽係鄰近該第一端；該活動握柄係樞接於該殼體；一刀片，係設於該殼體內，並具有一刀片軸孔及一控制孔，該軸件係穿過該刀片軸孔，用以將該刀片樞設於該軸孔；一控制鈕，係穿設於該弧形軌；該控制鈕具有一頭部、一桿部、一刀片限制部及一擋部；該頭部係外露於該弧形軌；該桿部係插設於該弧形軌，該刀片限制部係插設於該控制孔；該擋部係從該桿部上朝橫向延伸，並介於該頭部與該刀片限制部之間；藉此，當該控制鈕移動至該第一端時，係具有一上移位置及一下壓位置；當在該上移位置，該擋部係進入該內凹槽而被限制於該第一端，該刀片限制部抽離該控制孔，並當該軸件抽離該軸孔及該刀片軸孔，該刀片係可從該更換開口抽離更換；當在該下壓位置；該擋部係退離該內凹槽，該刀片限制部***該控制孔，該軸件***該軸孔及該刀片軸孔，該刀片係可被固定於該殼體；其中，該殼體又有一工作開口，其係鄰近該更換開口，當該殼體與該活動握柄相對夾合，該工作開口係供該刀片進行剪切。 A pipe cutting device includes: a manual clamp having a casing and a movable grip; the casing has an arcuate rail, a replacement opening, a shaft hole and a shaft member; the curved rail has a first a second end and an inner groove adjacent to the first end; the movable grip is pivotally connected to the housing; a blade is disposed in the housing and has a blade shaft a hole and a control hole, the shaft member passes through the blade shaft hole for pivoting the blade to the shaft hole; a control button is disposed on the arc track; the control button has a head, a rod portion, a blade limiting portion and a blocking portion; the head portion is exposed to the arc-shaped rail; the rod portion is inserted into the arc-shaped rail, and the blade limiting portion is inserted into the control hole; a portion extending laterally from the stem portion and interposed between the head portion and the blade restraining portion; thereby, when the control button is moved to the first end, the portion has an up position and a lower pressure position When in the up position, the blocking portion enters the inner groove and is restricted to the first end, and the blade restricting portion is pulled away from the control hole, When the shaft member is pulled away from the shaft hole and the blade shaft hole, the blade is detachable from the replacement opening; when in the depressed position; the stop is retracted from the inner groove, and the blade restriction portion is inserted The control hole, the shaft member is inserted into the shaft hole and the blade shaft hole, the blade can be fixed to the housing; wherein the housing has a working opening adjacent to the replacement opening, when the housing is The movable grip is relatively clamped, and the working opening is for cutting by the blade.

如申請專利範圍第1項所述之切管裝置，其中：該手動鉗又具有一單向制動機構，其包括一單向擋止件及一扭力彈簧；該扭力彈簧係以一端固定於該殼體，並以另端固定於該單向擋止件；該刀片對應該單向擋止件，而具有一單向制動齒部，其供該刀片單向卡合於該單向擋止件；該控制鈕係包括一彈性件；該桿部對應該彈性件，而具有一環凹槽；該彈性件係一端固定於該殼體，且另端固定於該環凹槽；藉此，當該控制鈕位於該下壓位置，係可推動該控制鈕於該弧形軌內移動，而可帶動該刀片於該工作開口內快速單向移動，當放開該控制鈕，該刀片係被該彈性件拉住，且該單向制齒部係被該單向擋止件擋止，而可被定位；並當該單向制動機構釋放該刀片，該彈性件係透過該桿部，拉動該刀片復位。The pipe cutting device of claim 1, wherein: The manual clamp further has a one-way brake mechanism including a one-way stop and a torsion spring; the torsion spring is fixed to the housing at one end and fixed to the one-way stop at the other end; The blade corresponds to the one-way stopper, and has a one-way brake tooth portion for the blade to be unidirectionally engaged with the one-way stopper; the control button includes an elastic member; the rod portion corresponds to the elastic member And having a ring groove; the elastic member is fixed at one end to the casing, and the other end is fixed to the ring groove; thereby, when the control button is located at the pressing position, the control button can be pushed to the arc Moving in the rail, the blade can be driven to move in one direction quickly in the working opening. When the control button is released, the blade is pulled by the elastic member, and the one-way toothing portion is blocked by the one-way gear. The stop is blocked and can be positioned; and when the one-way brake mechanism releases the blade, the elastic member is transmitted through the shaft to pull the blade to reset.