TW202024443A - Connection device for axially connecting two rods and connection method thereof with which the ends of two rods are allow to completely abut each other - Google Patents

Connection device for axially connecting two rods and connection method thereof with which the ends of two rods are allow to completely abut each other Download PDF

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TW202024443A
TW202024443A TW107147280A TW107147280A TW202024443A TW 202024443 A TW202024443 A TW 202024443A TW 107147280 A TW107147280 A TW 107147280A TW 107147280 A TW107147280 A TW 107147280A TW 202024443 A TW202024443 A TW 202024443A
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rod
internal thread
hole
rods
thread
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TW107147280A
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TWI695920B (en
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恕如 林
楊添理
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恕如 林
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Abstract

The present invention provides a connection device for axially connecting two rods and a connection method thereof, including: providing a hollow sleeve with a through hole axially penetrating therethrough has and having two opposite ends having inner diameter surfaces that are formed thereon with a left internal thread and a right internal thread, respectively; a first rod having one end formed thereon with a left external thread; and a second rod having one end formed thereon with a right external thread; and screwing the left external thread and the right external thread to the left internal thread and the right internal thread, respectively, wherein the device can be formed with a non-threaded section in the hollow sleeve, or provided with a spacer placed axially into the through hole of the hollow sleeve, and the hollow sleeve is rotated to simultaneously drive the first rod and the second rod to move toward each other until the ends of the first rod and the second rod abut the spacer; or alternatively, the end of one of the first rod and the second rod is formed with a non-threaded protruding end, and the hollow sleeve is rotated until the protruding end and the end of the other rod abut each other.

Description

將兩桿件軸向連接的連接裝置及其連接方法Connecting device and connecting method for axially connecting two rods

本發明提供一種將兩桿件軸向連接的連接裝置及其連接方法，尤其是一種利用軸向貫穿的中空套筒的將諸如鋼筋的兩桿件軸向連接的連接裝置及使用該裝置將兩桿件軸向連接的方法。The present invention provides a connecting device for axially connecting two rods and a connecting method thereof, in particular to a connecting device for axially connecting two rods such as steel bars by using an axially penetrating hollow sleeve and using the device to connect the two rods. The method of axial connection of rods.

在建築及土木工程中，鋼筋混凝土構造（Reinforced Concrete，RC）及鋼骨鋼筋混凝土構造（Steel Reinforced Concrete，SRC）中均需使用鋼筋建造其結構，為了方便搬運及儲存，會在鋼筋製造場所將製造好的鋼筋裁切成特定長度後，再運送至工地使用，因各建築的高度不一，通常需使用特定工法將多條鋼筋連接以延伸其長度，同時須考慮連接的強度，常見的鋼筋連接方法主要包括綁紮連接法、熔接法以及機械連接法等。In construction and civil engineering, both reinforced concrete (Reinforced Concrete, RC) and steel reinforced concrete (Steel Reinforced Concrete, SRC) structures need to be constructed with steel bars. In order to facilitate handling and storage, they will The manufactured steel bars are cut into specific lengths and then transported to the construction site for use. Because the height of each building is different, it is usually necessary to use a specific construction method to connect multiple steel bars to extend its length. At the same time, the strength of the connection must be considered. Common steel bars The connection methods mainly include binding connection method, welding method and mechanical connection method.

在綁紮連接法中，最常使用傳統人工搭接法，其將搭接的鋼筋進行人工綑紮後再行灌漿，因此人工搭接法易受綑紮品質或灌漿程序而影響搭接強度。熔接法中常用的方法包括電阻銲接法和摩擦熔接法，其中，電阻銲接法利用電流產生電阻熱鎔化鋼筋接觸面的金屬後，再將鋼筋加壓接合，然而，銲接連接法易受銲接過程中產生的氣泡、銲接處的夾角及結構變化等因素影響連接強度。In the lashing connection method, the traditional manual lap method is most often used, which manually bundles the overlapped steel bars before grouting. Therefore, the manual lap method is susceptible to the quality of the tying or the grouting procedure and affects the lap strength. Commonly used methods in the welding method include resistance welding and friction welding. Among them, the resistance welding method uses electric current to generate resistance heat to smelt the metal of the steel bar contact surface, and then press the steel bar to join. However, the welding connection method is susceptible to the welding process. Factors such as air bubbles, welding angles and structural changes affect the strength of the connection.

相較於前述方法，機械連接法通常使用套筒擠壓接頭，或將鋼筋滾壓出螺牙後，再以螺紋連接接頭將鋼筋連接，其優點為接頭強度高、加工快速、節能且接合速度快，因此發展出各種螺紋接頭的鋼筋續接器，常見的鋼筋續接器包括中華民國專利公告號M560495之新型專利中的圖6所揭露的鋼筋續接器，包括具有相對設置的螺紋一母續接件，以及具有分別配合母續接件的螺紋的螺牙的兩公續接件，兩公續接件分別和鋼筋摩擦熔接等的方式連接，並且透過公續接件與母續接件的螺接而續接兩鋼筋，然而，在此實施例中，仍須對鋼筋進行相對耗能的摩擦熔接加工後再使用鋼筋續接器以機械方式續接。Compared with the aforementioned methods, the mechanical connection method usually uses sleeve extrusion joints, or after the steel bars are rolled out of the threads, the steel bars are connected by threaded joints. Its advantages are high joint strength, fast processing, energy saving and joining speed Fast, therefore, a variety of threaded joint rebar splicers have been developed. Common rebar splicers include the rebar splicer disclosed in Figure 6 in the new patent of the Republic of China Patent Publication No. M560495, which includes a thread-female connector with a relative arrangement The splices, and two male splices with threads respectively matching the threads of the female splices, and the two male splices are respectively connected to the reinforcing steel by friction welding, etc., and are connected to the female splices through the male splices However, in this embodiment, it is still necessary to perform relatively energy-consuming friction welding processing on the steel bars before using a steel bar splicer to mechanically connect the two steel bars.

並且，在此類套筒式鋼筋續接器中，為了方便鋼筋的續接作業，將母續接件的兩螺紋相對設置，並且分別將已與鋼筋連接的兩公續接件的螺牙旋入母續接件的螺紋數圈至軸向對準，再使用夾具旋轉母續接件以同時將兩公續接件與母續接件螺合固定，然而，因為兩公續接件的螺牙初始旋入的圈數通常不一致，可能導致在旋轉母續接件進行螺合固定時，初始旋入圈數較多的公續接件的螺牙完全旋入母續接件的螺紋後便停止螺合固定，並且使初始旋入圈數較少的公續接件的螺牙尚有一部分未懸入母續接件的螺紋，使兩公續接件的螺牙末端相對的側面未能完全抵靠而產生縫隙，因而造成接續的鋼筋強度下降，容易在未完全抵靠而產生的縫隙處產生彎折甚至斷裂而影響鋼筋結構的安全性。In addition, in this type of telescopic rebar splicer, in order to facilitate the rebar splicing operation, the two threads of the female splice are arranged oppositely, and the threads of the two male splices that have been connected to the reinforcing steel are respectively screwed. Insert the thread of the female connector several times until it is aligned in the axial direction, and then use the clamp to rotate the female connector to fix the two male connector and the female connector at the same time. However, because of the screw of the two male connector The initial number of turns of the thread is usually inconsistent, which may cause the thread of the male connector with a large number of initial turns to be completely screwed into the thread of the female connector when the female connector is screwed and fixed. Stop screwing and fixing, and make the thread of the male connector with a small initial number of turns have a part that is not suspended in the thread of the female connector, so that the opposite sides of the screw ends of the two male connectors cannot Complete abutment creates a gap, which causes the strength of the continuous steel bars to decrease, and it is easy to bend or even break at the gap caused by incomplete abutment, which affects the safety of the steel structure.

綜合先前技術提到的各種待解決的問題，本發明旨在提供一種將兩桿件軸向連接的連接裝置及其連接方法，用以解決先前技術中，連接的結構容易在兩桿件的端部未完全抵靠而產生的縫隙處產生彎折甚至斷裂而影響連接結構的問題。Based on the various problems to be solved in the prior art, the present invention aims to provide a connecting device and a connecting method for axially connecting two rods, so as to solve the problem that in the prior art, the connecting structure is easy to be at the end of the two rods. The problem of bending or even breaking at the gap caused by the incomplete abutment of the part, which affects the connection structure.

本發明提供一種將兩桿件軸向連接的連接裝置，其技術手段可以包括：一中空套筒，具有軸向貫通相對兩端的一通孔，該通孔的內徑表面從一第一端往相對的一第二端的方向延伸一長度地形成一左內螺紋，且從該第二端往該第一端的方向延伸一長度地形成一右內螺紋；一第一桿件，其一端的外徑形成具有一長度的一左外螺紋，該左外螺紋螺旋配合於該中空套筒的該左內螺紋；以及一第二桿件，其一端的外徑形成具有一長度的一右外螺紋，該右外螺紋螺旋配合於該中空套筒的該右內螺紋；其中，該中空套筒被操作往一方向旋轉時，使該第一桿件與該第二桿件同時往彼此靠近的方向軸向地移動，直到該第一、二桿件的端部彼此抵觸以完成連接。The present invention provides a connecting device for axially connecting two rods. The technical means may include: a hollow sleeve with a through hole axially penetrating opposite ends, and the inner diameter surface of the through hole is opposite from a first end A left internal thread extends from the second end to the first end to form a left internal thread, and a right internal thread extends from the second end to the first end to form a right internal thread; a first rod with an outer diameter at one end A left external thread having a length is formed, and the left external thread is screw-fitted with the left internal thread of the hollow sleeve; and a second rod member whose outer diameter at one end forms a right external thread having a length, the The right external thread is screw-fitted to the right internal thread of the hollow sleeve; wherein, when the hollow sleeve is operated to rotate in one direction, the first rod and the second rod are moved toward each other at the same time. Move it until the ends of the first and second rods collide with each other to complete the connection.

本發明的其中一特徵為該左內螺紋與右內螺紋均延伸至中空套筒的中間位置，並且該左內螺紋延伸至該通孔內部的終端與該右內螺紋延伸至該通孔內部的終端彼此鄰接。One of the features of the present invention is that the left internal thread and the right internal thread both extend to the middle position of the hollow sleeve, and the left internal thread extends to the end of the through hole and the right internal thread extends to the end of the through hole. The terminals are adjacent to each other.

本發明的其中一特徵為可以進一步包括至少一墊片，該墊片被軸向地置入中空套筒的通孔中，並且透過旋轉中空套筒將第一、二桿件的端部抵觸於該墊片的相對兩面以完成連接，以使兩桿件端部之間不存在縫隙，從而避免連接的結構從該縫隙處斷裂。One of the features of the present invention is that it may further include at least one gasket, which is axially inserted into the through hole of the hollow sleeve, and the ends of the first and second rods are contacted by rotating the hollow sleeve. The two opposite sides of the gasket are connected to complete the connection, so that there is no gap between the ends of the two rods, so as to prevent the connected structure from breaking through the gap.

本發明的其中一特徵為該第一與第二桿件的至少其中之一，可以在其端部形成有不具螺紋的突出端，並透過旋轉中空套筒將第一、二桿件的兩突出端係彼此抵觸以完成連接，以使兩桿件端部之間不存在縫隙，從而避免連接的結構從該縫隙處斷裂。One of the features of the present invention is that at least one of the first and second rods can be formed with a non-threaded protruding end at its end, and the two protruding ends of the first and second rods can be protruded by rotating the hollow sleeve. The end systems conflict with each other to complete the connection, so that there is no gap between the ends of the two rods, so as to prevent the connected structure from breaking through the gap.

本發明的其中一特徵為該通孔的內徑表面由一中線位置往該第一端與該第二端分別軸向延伸一長度地形成一無螺紋段，該無螺紋段的內徑大於該通孔的內徑且不具有螺紋，並透過旋轉中空套筒將第一、二桿件的兩端部係彼此抵觸以完成連接，以使兩桿件端部之間不存在縫隙，從而避免連接的結構從該縫隙處斷裂。One of the features of the present invention is that the inner diameter surface of the through hole axially extends a length from a midline position to the first end and the second end to form a threadless section, and the inner diameter of the threadless section is larger than The inner diameter of the through hole is not threaded, and the two ends of the first and second rods are connected to each other by rotating the hollow sleeve, so that there is no gap between the ends of the two rods, thereby avoiding The connected structure breaks through the gap.

本發明的其中一特徵為該通孔的第一端與第二端可以分別形成有第一擴大孔與第二擴大孔，第一擴大孔與第二擴大孔的內徑大於通孔的內徑且均不具有螺紋，以使該兩桿件可以方便地穿入中空套筒。One of the features of the present invention is that the first end and the second end of the through hole can be respectively formed with a first enlarged hole and a second enlarged hole, the inner diameter of the first enlarged hole and the second enlarged hole is larger than the inner diameter of the through hole And neither has threads, so that the two rods can be easily inserted into the hollow sleeve.

本發明的其中一特徵為該通孔從第一端至第二端以相同的內徑延伸，第一桿件的左外螺紋的長度範圍以相同的外徑延伸，並且第二桿件的右外螺紋的長度範圍以相同的外徑延伸。One of the features of the present invention is that the through hole extends from the first end to the second end with the same inner diameter, the length range of the left external thread of the first rod extends with the same outer diameter, and the right The length range of the external thread extends with the same outer diameter.

本發明的其中一特徵為該通孔的左內螺紋與右內螺紋的長度範圍可以分別形成為對稱的錐形孔，第一、二桿件的左外螺紋與右外螺紋的長度範圍分別形成為對應錐形孔的錐形體。One of the features of the present invention is that the length ranges of the left internal thread and the right internal thread of the through hole can be respectively formed as symmetrical tapered holes, and the length ranges of the left external thread and the right external thread of the first and second rods are respectively formed It is the cone corresponding to the cone hole.

本發明提供一種將兩桿件軸向連接的方法，其技術手段包括：提供一中空套筒，在該中空套筒的軸向貫通的一通孔的相對兩端往相對方向的中間位置分別延伸形成一左內螺紋與一右內螺紋，並且該左、右內螺紋的終端彼此鄰接；提供一第一桿件，在其一端的外徑形成匹配於該左內螺紋的一左外螺紋；提供一第二桿件，在其一端的外徑形成匹配於該右內螺紋的一右外螺紋；將該第一桿件的該左外螺紋螺旋組合於該左內螺紋，以及將該第二桿件的該右外螺紋螺旋組合於該右內螺紋；將該中空套筒往一方向旋轉，使該第一桿件與該第二桿件同時往彼此靠近的方向軸向地移動，直到該第一、二桿件的端部彼此抵觸以完成連接。The present invention provides a method for axially connecting two rods. The technical means includes: providing a hollow sleeve. The opposite ends of a through hole penetrated in the axial direction of the hollow sleeve are respectively formed to extend toward the middle position of the opposite direction. A left internal thread and a right internal thread, and the terminals of the left and right internal threads are adjacent to each other; a first rod member is provided with an outer diameter at one end of which is formed with a left external thread matching the left internal thread; A second rod, forming a right external thread matching the right internal thread at the outer diameter of one end; screwing the left external thread of the first rod with the left internal thread, and the second rod The right external thread of the screw is combined with the right internal thread; the hollow sleeve is rotated in one direction, so that the first rod and the second rod move axially toward each other at the same time, until the first , The ends of the two rods conflict with each other to complete the connection.

本發明提供之連接方法的其中一特徵為可以進一步提供至少一墊片，該墊片被軸向地置入中空套筒的通孔中，並將透過旋轉中空套筒將第一、二桿件的端部抵觸於該墊片的相對兩面以完成連接，以使兩桿件端部之間不存在縫隙，從而避免連接的結構從該縫隙處斷裂。One of the features of the connection method provided by the present invention is that it can further provide at least one gasket, which is axially inserted into the through hole of the hollow sleeve, and the first and second rods are rotated through the hollow sleeve. The ends of the rod abut against the opposite sides of the gasket to complete the connection, so that there is no gap between the ends of the two rods, so as to prevent the connected structure from breaking through the gap.

本發明提供之連接方法的其中一特徵為第一與第二桿件的至少其中之一，可以在其具有螺紋的端部形成有不具螺紋的突出端，並透過旋轉中空套筒將第一、二桿件的兩突出端彼此抵觸以完成連接，以使兩桿件端部之間不存在縫隙，從而避免連接的結構從該縫隙處斷裂。One of the characteristics of the connection method provided by the present invention is that at least one of the first and second rods can have a threaded end formed with a non-threaded protruding end, and the first, The two protruding ends of the two rods interfere with each other to complete the connection, so that there is no gap between the ends of the two rods, so as to prevent the connected structure from breaking through the gap.

另外，本發明的各個實施例不限於以上描述者，並且本領域通常知識者可以由以下描述清楚地理解未提及的其他實施例。In addition, the various embodiments of the present invention are not limited to those described above, and those of ordinary skill in the art can clearly understand other embodiments not mentioned from the following description.

以下將結合本發明實施例中的附圖，對本發明實施例中的技術方案進行清楚、完整地描述，顯然，所描述的實施例僅僅是本發明一部分實施例，而不是全部的實施例。基於本發明中的實施例，本領域通常知識者在沒有做出進步性改良前提下所獲得的所有其他實施例，都屬於本發明保護的範圍。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making progressive improvements fall within the protection scope of the present invention.

此外，在本發明的以下描述中，可能省略對已知相關技術的詳細說明，以避免不必要地模糊本發明的主題。In addition, in the following description of the present invention, detailed descriptions of known related technologies may be omitted to avoid unnecessarily obscuring the subject of the present invention.

參照圖1A至圖1C，根據本發明的第一實施例，將兩桿件軸向連接的連接裝置包括中空套筒10、兩桿件20（即第一桿件20a與第二桿件20b）和至少一個墊片30，為提升連接強度，中空套筒10與兩桿件20可以由相同的材料製成，其中，中空套筒10具有沿著該連接裝置的軸線x軸向貫通其相對兩端的通孔14，通孔14的內徑表面從第一端15a往相對的第二端15b的方向延伸一長度以形成左內螺紋11a，且從第二端15b往第一端15a的方向延伸一長度地形成右內螺紋11b，並且左內螺紋11a延伸至通孔14內部的終端與該右內螺紋11b延伸至通孔14內部的終端彼此鄰接，該鄰接的位置較佳地位於中空套筒10的中央的中線位置ML。墊片30的外徑小於通孔14的內徑，因此可以將墊片30軸向地置入通孔14內。在本發明的實施例中，第一桿件20a與第二桿件20b可以是鋼筋；第一桿件20a的一端的外徑形成具有一長度的左外螺紋21a，左外螺紋21a螺旋配合於中空套筒10的左內螺紋11a；並且第二桿件20b的一端的外徑形成具有一長度的右外螺紋21b，右外螺紋21b螺旋配合於中空套筒10的右內螺紋11b；其中，將墊片30置入通孔14內，並將左、右外螺紋21a、21b分別旋入左、右內螺紋11a、11b數圈後（如圖1A及1B所示），由於左、右內螺紋11a、11b為彼此相對地設置，在使用諸如扳手的夾持工具將中空套筒10往螺合旋緊的方向旋轉時，可以使第一桿件20a與第二桿件20b同時往彼此靠近的方向軸向地移動，同時，因為左內螺紋11a與右內螺紋11b均延伸至中空套筒10的中線位置ML，因此在將第一桿件20a與第二桿件20b螺合於中空套筒10並且旋緊過程中，由於墊片30不具螺紋且其外徑小於通孔14的內徑而可以隨第一桿件20a或第二桿件20b的端部推動而移動；並且由於墊片30存在一厚度，使得倘若第一桿件20a的左外螺紋21a端部先到達中空套筒10之中線位置ML時，會推動墊片30超過該中線位置ML，讓隨後移動而至的第二桿件20b的右外螺紋21b端部得以抵觸到墊片30（如圖1C所示）；反之，倘若第二桿件20b的右外螺紋21b端部先到達中空套筒10之中線位置ML時，也會推動墊片30超過該中線位置ML，讓隨後移動而至的第一桿件20a端部得以抵觸到墊片30；因此，在完全鎖緊第一桿件20a與第二桿件20b時，即使左、右外螺紋21a、21b一開始旋入左、右內螺紋11a、11b的圈數不一致，第一桿件20a與第二桿件20b端部仍可以分別完全抵觸於該墊片30的相對兩側面而不存在縫隙，從而避免了連接的結構從該縫隙處斷裂的問題。透過這種連接裝置，不需花費2倍的時間分別將第一桿件20a與第二桿件20b螺合於中空套筒10中，並且由於只旋轉中空套筒10而不是旋轉第一桿件20a或第二桿件20b，可以解決第一桿件20a或第二桿件20b已固定於另一物體上，而無法旋轉第一桿件20a或第二桿件20b的問題。1A to 1C, according to the first embodiment of the present invention, the connecting device for axially connecting two rods includes a hollow sleeve 10 and two rods 20 (ie, the first rod 20a and the second rod 20b) And at least one washer 30, in order to improve the connection strength, the hollow sleeve 10 and the two rods 20 can be made of the same material, wherein the hollow sleeve 10 has two opposite sides extending axially along the axis x of the connecting device. The inner diameter surface of the through hole 14 extends from the first end 15a to the opposite second end 15b to form a left internal thread 11a, and extends from the second end 15b to the first end 15a. A right internal thread 11b is formed in a length, and the end of the left internal thread 11a extending to the inside of the through hole 14 and the terminal of the right internal thread 11b extending to the inside of the through hole 14 are adjacent to each other, and the abutting position is preferably located in the hollow sleeve 10 is the center line position ML. The outer diameter of the gasket 30 is smaller than the inner diameter of the through hole 14, so the gasket 30 can be axially inserted into the through hole 14. In the embodiment of the present invention, the first rod 20a and the second rod 20b may be steel bars; the outer diameter of one end of the first rod 20a forms a left external thread 21a having a length, and the left external thread 21a is screwed into The left internal thread 11a of the hollow sleeve 10; and the outer diameter of one end of the second rod 20b forms a right external thread 21b having a length, and the right external thread 21b is screw-fitted to the right internal thread 11b of the hollow sleeve 10; wherein, Put the washer 30 into the through hole 14, and screw the left and right external threads 21a, 21b into the left and right internal threads 11a, 11b, respectively, after several turns (as shown in Figures 1A and 1B). The threads 11a and 11b are arranged opposite to each other. When the hollow sleeve 10 is rotated in the direction of screwing and tightening with a clamping tool such as a wrench, the first rod 20a and the second rod 20b can be simultaneously approached to each other At the same time, because the left internal thread 11a and the right internal thread 11b both extend to the center line position ML of the hollow sleeve 10, the first rod 20a and the second rod 20b are screwed into the hollow During the tightening process of the sleeve 10, since the gasket 30 has no thread and its outer diameter is smaller than the inner diameter of the through hole 14, it can move with the push of the end of the first rod 20a or the second rod 20b; The sheet 30 has a thickness such that if the end of the left external thread 21a of the first rod 20a reaches the center line position ML of the hollow sleeve 10 first, the spacer 30 will be pushed beyond the center line position ML, and then moved to The end of the right external thread 21b of the second rod 20b can interfere with the gasket 30 (as shown in Figure 1C); on the contrary, if the end of the right external thread 21b of the second rod 20b reaches the hollow sleeve 10 first When the line position ML, the washer 30 will also be pushed beyond the midline position ML, so that the end of the first rod 20a that moves thereafter can interfere with the washer 30; therefore, the first rod 20a is completely locked with In the case of the second rod 20b, even if the left and right external threads 21a, 21b are initially screwed into the left and right internal threads 11a, 11b, the ends of the first rod 20a and the second rod 20b can still be completely separated. There is no gap between the two opposite sides of the gasket 30, thereby avoiding the problem of the connecting structure breaking through the gap. Through this connection device, it is not necessary to spend twice the time to screw the first rod 20a and the second rod 20b into the hollow sleeve 10 respectively, and because only the hollow sleeve 10 is rotated instead of the first rod 20a or the second rod 20b can solve the problem that the first rod 20a or the second rod 20b is fixed to another object, and the first rod 20a or the second rod 20b cannot be rotated.

參照圖2，根據本發明的第二實施例，可以在第一桿件20a與第二桿件20b的至少其中之一（即圖2中的第一桿件20a），在其具有左外螺紋21a的端部軸向突出地形成有不具螺紋且外徑小於左、右內螺紋11a、11b的外徑的突出端22a，該突出端22a可以利用倒角加工技術來形成，接著以與本發明的第一實施例相同的方式將第一桿件20a與第二桿件20b螺合於中空套筒10中，其中，由於突出端22a不具螺紋，且其外徑小於左、右內螺紋11a、11b的內徑，所以突出端22a可以輕易地穿入中空套筒10的通孔14，並且可以不受左、右內螺紋11a、11b的螺紋形狀的限制，而隨第一桿件20a的端部的位置移動而移動；由於突出端22a在軸向上存在一突出長度，使得第一桿件20a與第二桿件20b的相對兩端往中空套筒10的中間位置移動時，該突出端22a會先超過中線位置ML，讓隨後移動而至的第二桿件20b的端部得以抵觸到突出端22a的端部；因此，在完全鎖緊第一桿件20a與第二桿件20b時，即使左、右外螺紋21a、21b一開始旋入左、右內螺紋11a、11b的圈數不一致，突出端22a和第二桿件20b的端部仍可以完全抵觸而不在其之間存在縫隙，從而避免了連接的結構從該縫隙處斷裂的問題。2, according to the second embodiment of the present invention, at least one of the first rod 20a and the second rod 20b (ie, the first rod 20a in FIG. 2) has a left external thread The end of 21a is axially protrudingly formed with a protruding end 22a having no thread and an outer diameter smaller than the outer diameter of the left and right internal threads 11a, 11b. The protruding end 22a can be formed by chamfering processing technology, and then the same as the present invention The first rod 20a and the second rod 20b are screwed into the hollow sleeve 10 in the same manner as in the first embodiment, wherein, because the protruding end 22a is not threaded, and its outer diameter is smaller than the left and right internal threads 11a, 11b, so the protruding end 22a can easily penetrate into the through hole 14 of the hollow sleeve 10, and can not be restricted by the thread shape of the left and right internal threads 11a, 11b, but with the end of the first rod 20a Because the protruding end 22a has a protruding length in the axial direction, when the opposite ends of the first rod 20a and the second rod 20b move to the middle position of the hollow sleeve 10, the protruding end 22a Will first exceed the midline position ML, so that the end of the second rod 20b that moves thereafter can interfere with the end of the protruding end 22a; therefore, when the first rod 20a and the second rod 20b are completely locked Even if the left and right external threads 21a, 21b are screwed into the left and right internal threads 11a, 11b at the beginning, the number of turns is different, the protruding end 22a and the end of the second rod 20b can still completely interfere without a gap between them. , Thereby avoiding the problem of the connection structure breaking from the gap.

此外，同樣參照圖2，根據本發明的第二實施例，中空套筒10可以進一步包括分別形成於通孔14的第一端15a與第二端15b的第一擴大孔12a和第二擴大孔12b，第一擴大孔12a與第二擴大孔12b的內徑大於通孔14的內徑，且第一擴大孔12a與第二擴大孔12b均不具有螺紋，使第一桿件20a的左外螺紋21a以及第二桿件20b的右外螺紋21b可以分別容易地導入到第一擴大孔12a和第二擴大孔12b中，接著透過第一擴大孔12a和第二擴大孔12b的輔助，容易地對準並且旋入左、右內螺紋11a、11b中。其中，通孔14從第一擴大孔12a至第二擴大孔12b以相同的內徑延伸，並且，第一桿件20a上形成有左外螺紋21a的長度t以及第二桿件20b上形成有右外螺紋21b的長度t，均以與通孔14的內徑相同的外徑延伸；並且，為了使左、右外螺紋21a、21b鎖入中空套筒10後讓突出端22a可以超過中線位置ML，左、右外螺紋21a、21b的長度t相加後等於中空套筒10的軸向長度L（即2t）。In addition, referring also to FIG. 2, according to the second embodiment of the present invention, the hollow sleeve 10 may further include a first enlarged hole 12a and a second enlarged hole formed at the first end 15a and the second end 15b of the through hole 14, respectively. 12b, the inner diameters of the first enlarged hole 12a and the second enlarged hole 12b are larger than the inner diameter of the through hole 14, and the first enlarged hole 12a and the second enlarged hole 12b are not threaded, so that the left outer side of the first rod 20a The thread 21a and the right external thread 21b of the second rod 20b can be easily introduced into the first enlarged hole 12a and the second enlarged hole 12b, respectively, and then with the aid of the first enlarged hole 12a and the second enlarged hole 12b, it is easy Align and screw into the left and right internal threads 11a, 11b. Wherein, the through hole 14 extends from the first enlarged hole 12a to the second enlarged hole 12b with the same inner diameter, and the first rod 20a is formed with a length t of the left external thread 21a and the second rod 20b is formed with The length t of the right external thread 21b is extended with the same outer diameter as the inner diameter of the through hole 14; and, in order to lock the left and right external threads 21a, 21b into the hollow sleeve 10, the protruding end 22a can exceed the center line At position ML, the sum of the length t of the left and right external threads 21a and 21b is equal to the axial length L of the hollow sleeve 10 (ie, 2t).

參照圖3，本發明的第三實施例，可以將左、右外螺紋11a、11b的長度均設計為t，由左外螺紋11a的端部延伸的突出部22a的長度進一步加長成為t’，為了配合左、右外螺紋11a、11b以及突出部22a的長度總和2t+ t’，中空套筒10的內側表面上具有左、右內螺紋的範圍的長度L1設為2t+ t’，並且，中空套筒10兩端的第一擴大孔12a與第二擴大孔12b的長度設為L2，因此，中空套筒10的長度L為L1+2L2，即為2t+ t’+2L2，也就是說，除了將左外螺紋21a、突出端22a以及右外螺紋21b的長度完全容納於中空套筒10的內側表面上具有螺紋的範圍之外，中空套筒10兩端的第一擴大孔12a與第二擴大孔12b分別進一步容納了第一桿件20a與第二桿件20b上不具螺紋的的一部分的長度，使第一桿件20a與第二桿件20b上的螺紋完全被包覆於中空套筒10中，進一步保護了第一桿件20a與第二桿件20b具有螺紋的部分。3, in the third embodiment of the present invention, the length of the left and right external threads 11a, 11b can be designed as t, and the length of the protrusion 22a extending from the end of the left external thread 11a is further lengthened to t', In order to match the total length of the left and right external threads 11a, 11b and the protrusion 22a of 2t+t', the length L1 of the range of the left and right internal threads on the inner surface of the hollow sleeve 10 is set to 2t+t', and the hollow sleeve The length of the first enlarged hole 12a and the second enlarged hole 12b at both ends of the cylinder 10 is set to L2. Therefore, the length L of the hollow sleeve 10 is L1+2L2, which is 2t+t'+2L2, that is, except for the left The lengths of the external thread 21a, the protruding end 22a, and the right external thread 21b are completely accommodated outside the range of threads on the inner surface of the hollow sleeve 10. The first enlarged hole 12a and the second enlarged hole 12b at both ends of the hollow sleeve 10 are respectively It further accommodates the length of a portion of the first rod 20a and the second rod 20b that is not threaded, so that the threads on the first rod 20a and the second rod 20b are completely covered in the hollow sleeve 10, and further The threaded parts of the first rod 20a and the second rod 20b are protected.

此外，雖然圖式沒有顯示，但在另一實施例中，通孔14的內徑表面上形成有左內螺紋11a與右內螺紋11b的部分可以分別形成為彼此對稱的錐形孔，而第一桿件20a與第二桿件20b上分別具有左外螺紋21a、右外螺紋21b的部分分別形成為對應該等錐形孔的錐形體。In addition, although the drawing is not shown, in another embodiment, the portion of the inner diameter surface of the through hole 14 where the left internal thread 11a and the right internal thread 11b are formed can be respectively formed as tapered holes symmetrical to each other, and the first The portions of the one rod 20a and the second rod 20b respectively having the left external thread 21a and the right external thread 21b are respectively formed into cones corresponding to the tapered holes.

參照圖4A，本發明的中空套筒10的外圍可以形成為圓柱形狀，工作人員可以使用諸如管鉗扳手的夾持工具旋轉中空套筒10，以將其同時與第一桿件20a和第二桿件20b螺合旋緊。或者，中空套筒10的外圍也可以形成為具有六邊形角柱的結構（如圖4B所示），讓工作人員可以利用一般扳手操作旋緊中空套筒10。4A, the outer periphery of the hollow sleeve 10 of the present invention can be formed into a cylindrical shape, and the worker can use a clamping tool such as a pipe wrench to rotate the hollow sleeve 10 to simultaneously connect it with the first rod 20a and the second rod 20a and the second rod. The rod 20b is screwed and tightened. Alternatively, the outer periphery of the hollow sleeve 10 may also be formed into a structure with hexagonal corner posts (as shown in FIG. 4B), so that the staff can use a general wrench to tighten the hollow sleeve 10.

圖5A至圖5D說明了根據本發明的第三實施例的將兩桿件軸向連接的連接方法的步驟，包括：將具有突出端22a的第一桿件20a與中空套筒10軸向對準（圖5A）；將第一桿件20a的左外螺紋21a旋入中空套筒10的左內螺紋11a數圈（圖5B）；將第二桿件20b的右外螺紋21b旋入中空套筒10的右內螺紋11b數圈（圖5C）；並且使用諸如板手的夾持工具將中空套筒10往螺合旋緊的方向旋轉，使第一桿件20a與第二桿件20b同時往彼此靠近的方向軸向地移動，直到第一桿件20a的突出端22a與第二桿件20b的端部彼此完全抵觸以完成連接（圖5D）。5A to 5D illustrate the steps of a method of connecting two rods axially according to a third embodiment of the present invention, including: axially aligning the first rod 20a with the protruding end 22a and the hollow sleeve 10 Standard (Figure 5A); screw the left external thread 21a of the first rod 20a into the left internal thread 11a of the hollow sleeve 10 for several turns (Figure 5B); screw the right external thread 21b of the second rod 20b into the hollow sleeve The right internal thread 11b of the barrel 10 has several turns (Figure 5C); and use a clamping tool such as a wrench to rotate the hollow sleeve 10 in the direction of screwing and tightening, so that the first rod 20a and the second rod 20b are simultaneously Move axially toward each other until the protruding end 22a of the first rod 20a and the end of the second rod 20b completely conflict with each other to complete the connection (Figure 5D).

參照圖6A至圖6C，根據本發明的第四實施例，可以由中空套筒10的通孔14的內徑表面的中線位置ML分別往第一端15a和第二端15b軸向地延伸一長度而形成無螺紋段16，無螺紋段16的內徑大於通孔14的內徑且不具有螺紋，並且無螺紋段16的兩端分別與左內螺紋11a和右內螺紋11b的終端彼此鄰接；接著以與本發明的第一實施例相同的方式將第一桿件20a與第二桿件20b螺合於中空套筒10中；如圖6C所示，在將左、右外螺紋21a、21b分別旋入左、右內螺紋11a、11b至左、右外螺紋21a、21b的端部超過左、右內螺紋11a、11b各自與無螺紋段16的交接處之後，即使左、右外螺紋21a、21b一開始旋入左、右內螺紋11a、11b的圈數不一致，例如，左外螺紋21a一開始旋入左內螺紋11a的圈數較右外螺紋21b一開始旋入右內螺紋11b的圈數多，使得在旋緊過程中，當左外螺紋21a的端部先抵達中線位置ML時，由於無螺紋段16不具螺紋，且其內徑大於左、右外螺紋21a、21b的外徑，使左、右外螺紋21a、21b不受無螺紋段16的形狀限制，仍可以繼續旋轉中空套筒10以旋緊該連接結構，並且，在完全鎖緊第一桿件20a與第二桿件20b時，第一桿件20a與第二桿件20b端部仍可以完全抵觸而不在其之間存在縫隙，從而避免了連接的結構從該縫隙處斷裂的問題，並且其中，左、右外螺紋21a、21b的端部的交接處不位在中線位置ML而是往第二端15b稍微偏移。同樣地，雖然圖未顯示，假設右外螺紋21b一開始旋入右內螺紋11b的圈數較左外螺紋21a一開始旋入左內螺紋11a的圈數多，由於無螺紋段16的存在，在完全鎖緊第一桿件20a與第二桿件20b時，第一桿件20a與第二桿件20b的端部仍可以完全抵觸而不在其之間存在縫隙，並且其中，左、右外螺紋21a、21b的端部的交接處不位在中線位置ML而是往第一端15a稍微偏移。6A to 6C, according to the fourth embodiment of the present invention, the hollow sleeve 10 can be axially extended to the first end 15a and the second end 15b from the center line position ML of the inner diameter surface of the through hole 14 A length of the unthreaded section 16 is formed. The inner diameter of the unthreaded section 16 is larger than the inner diameter of the through hole 14 and does not have threads. The two ends of the unthreaded section 16 are connected to the ends of the left internal thread 11a and the right internal thread 11b, respectively. Adjacent; then the first rod 20a and the second rod 20b are screwed into the hollow sleeve 10 in the same manner as the first embodiment of the present invention; as shown in FIG. 6C, the left and right external threads 21a , 21b are screwed into the left and right internal threads 11a, 11b respectively until the ends of the left and right external threads 21a, 21b exceed the junction between the left and right internal threads 11a, 11b and the unthreaded section 16, even if the left and right external threads The number of turns of the threads 21a, 21b into the left and right internal threads 11a, 11b at the beginning is inconsistent. For example, the number of turns of the left external thread 21a into the left internal thread 11a is more than that of the right external thread 21b into the right internal thread. 11b has a large number of turns, so that during the tightening process, when the end of the left external thread 21a first reaches the center line position ML, because the unthreaded section 16 has no thread, and its inner diameter is larger than the left and right external threads 21a, 21b The outer diameter of the left and right external threads 21a, 21b is not restricted by the shape of the unthreaded section 16, and the hollow sleeve 10 can still be rotated to tighten the connection structure, and the first rod 20a and the In the case of the second rod 20b, the ends of the first rod 20a and the second rod 20b can still completely conflict without a gap between them, thereby avoiding the problem of the connecting structure breaking from the gap, and the left , The junction of the ends of the right external threads 21a, 21b is not located at the center line position ML but slightly offset to the second end 15b. Similarly, although not shown in the figure, it is assumed that the number of turns of the right external thread 21b initially screwed into the right internal thread 11b is more than the number of turns of the left external thread 21a initially screwed into the left internal thread 11a. Due to the existence of the threaded section 16, When the first rod member 20a and the second rod member 20b are completely locked, the ends of the first rod member 20a and the second rod member 20b can still completely interfere without a gap between them, and among them, the left and right outer The junction of the ends of the threads 21a and 21b is not located at the center line position ML but slightly offset to the first end 15a.

對於本領域通常知識者而言，顯然本發明不限於上述示範性實施例的細節，而且在不背離本發明的精神或基本特徵的情況下，能夠以其他的具體形式實現本發明。因此，無論從哪一點來看，均應將實施例看作是示範性的，而且是非限制性的，本發明的範圍由申請專利範圍而不是上述說明限定，因此旨在將落在申請專利範圍的等同要件的含義和範圍內的所有變化囊括在本發明內。不應將本說明書中的任何元件符號視為限制所涉及的申請專利範圍。For those skilled in the art, it is obvious that the present invention is not limited to the details of the foregoing exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the scope of the patent application rather than the above description, so it is intended to fall within the scope of the patent application. All changes within the meaning and scope of equivalent elements of are included in the present invention. Any element symbols in this specification should not be regarded as limiting the scope of the patent application involved.

10:中空套筒 11a:左內螺紋11b:右內螺紋12a:第一擴大孔12b:第二擴大孔14:通孔15a:第一端15b:第二端16:無螺紋段20:桿件20a:第一桿件20b:第二桿件21a:左外螺紋21b:右外螺紋22a:突出端30:墊片ML:中線位置X:軸線10: Hollow sleeve 11a: Left internal thread 11b: Right internal thread 12a: First enlarged hole 12b: Second enlarged hole 14: Through hole 15a: First end 15b: Second end 16: Unthreaded section 20: Rod 20a: first rod 20b: second rod 21a: left external thread 21b: right external thread 22a: protruding end 30: gasket ML: center line position X: axis

圖1A～1C為根據本發明的第一實施例，顯示將兩個桿件透過中空套筒與墊片連接組合的結構示意圖； 圖2為根據本發明的第二實施例，顯示中空套筒與兩桿件螺紋長度配合關係的示意圖； 圖3為根據本發明的第三實施例，顯示中空套筒與兩個桿件之另一螺紋長度配合關係以及突出端之另一形態的示意圖； 圖4A為顯示本發明之中空套筒的外徑形成為圓形柱狀之軸向側視示意圖； 圖4B為顯示本發明之中空套筒的外徑形成為具有六邊形角柱狀之軸向側視示意圖； 圖5A～5D為根據本發明的第三實施例，顯示將兩桿件軸向連接中空套筒的組裝步驟示意圖；以及 圖6A～6C為根據本發明的第四實施例，顯示將兩個桿件透過在其中間位置具有無螺紋段的中空套筒連接組合的結構示意圖。Figures 1A to 1C are schematic diagrams showing the structure of connecting two rods through a hollow sleeve and a gasket according to the first embodiment of the present invention; Figure 2 is a second embodiment of the present invention, showing the hollow sleeve and A schematic diagram of the matching relationship between the thread lengths of the two rods; Figure 3 is a schematic diagram showing another thread length matching relationship between the hollow sleeve and the two rods and another form of the protruding end according to the third embodiment of the present invention; Figure 4A To show that the outer diameter of the hollow sleeve of the present invention is formed into a circular columnar axial side view; Figure 4B is to show that the outer diameter of the hollow sleeve of the present invention is formed to have a hexagonal angular columnar axial side view Schematic diagram; Figures 5A to 5D are diagrams showing the assembly steps of connecting two rods axially to the hollow sleeve according to the third embodiment of the present invention; and Figures 6A to 6C are diagrams of the fourth embodiment according to the present invention, showing the two A schematic diagram of the structure of connecting and combining two rods through a hollow sleeve with a non-threaded section at the middle position.

10:中空套筒 10: Hollow sleeve

11a:左內螺紋 11a: Left internal thread

11b:右內螺紋 11b: Right internal thread

12a:第一擴大孔 12a: The first enlarged hole

12b:第二擴大孔 12b: second enlarged hole

20a:第一桿件 20a: first member

20b:第二桿件 20b: second member

21a:左外螺紋 21a: Left external thread

21b:右外螺紋 21b: Right external thread

22a:突出端 22a: Overhang

X:軸線 X: axis

Claims (10)

一種將兩桿件軸向連接的連接裝置，包括： 一中空套筒，具有軸向貫通相對兩端的一通孔，該通孔的內徑表面從一第一端往相對的一第二端的方向延伸一長度地形成一左內螺紋，且從該第二端往該第一端的方向延伸一長度地形成一右內螺紋； 一第一桿件，其一端的外徑形成具有一長度的一左外螺紋，該左外螺紋螺旋配合於該中空套筒的該左內螺紋；以及 一第二桿件，其一端的外徑形成具有一長度的一右外螺紋，該右外螺紋螺旋配合於該中空套筒的該右內螺紋； 其中，該中空套筒被操作往一方向旋轉時，使該第一桿件與該第二桿件同時往彼此靠近的方向軸向地移動，直到該第一、二桿件的端部彼此抵觸以完成連接。A connecting device for axially connecting two rods, comprising: a hollow sleeve with a through hole axially penetrating opposite ends, the inner diameter surface of the through hole extends from a first end to an opposite second end A left internal thread is formed in a length, and a right internal thread is formed in a direction extending from the second end to the first end for a length; a first rod member, an outer diameter of one end of which forms a left External thread, the left external thread is screw-fitted to the left internal thread of the hollow sleeve; and a second rod, the outer diameter of one end of which forms a right external thread with a length, and the right external thread is screw-fitted to the The right internal thread of the hollow sleeve; wherein, when the hollow sleeve is operated to rotate in one direction, the first rod and the second rod are moved axially toward each other at the same time, until the first , The ends of the two rods conflict with each other to complete the connection. 根據請求項1所述之將兩桿件軸向連接的連接裝置，其中，該左內螺紋與該右內螺紋均延伸至該中空套筒的中間位置，並且該左內螺紋延伸至該通孔內部的終端與該右內螺紋延伸至該通孔內部的終端彼此鄰接。The connecting device for axially connecting two rods according to claim 1, wherein the left internal thread and the right internal thread both extend to the middle position of the hollow sleeve, and the left internal thread extends to the through hole The inner terminal and the terminal of the right internal thread extending to the inside of the through hole are adjacent to each other. 根據請求項2所述之將兩桿件軸向連接的連接裝置，其中，進一步包括至少一墊片，該墊片被軸向地置入該中空套筒的該通孔中，該第一、二桿件的端部係抵觸於該墊片的相對兩面以完成該連接。The connecting device for axially connecting two rods according to claim 2, which further includes at least one gasket, the gasket being axially inserted into the through hole of the hollow sleeve, the first, The ends of the two rods abut against the opposite sides of the gasket to complete the connection. 根據請求項2所述之將兩桿件軸向連接的連接裝置，其中，該第一桿件與該第二桿件的至少其中之一，在其具有該左外螺紋或該右外螺紋的端部軸向突出地形成有不具螺紋的一突出端，該第一、二桿件的該兩端部係彼此抵觸以完成該連接。The connecting device for axially connecting two rods according to claim 2, wherein at least one of the first rod and the second rod has the left external thread or the right external thread A protruding end without a thread is formed axially protruding from the end, and the two ends of the first and second rods abut each other to complete the connection. 根據請求項1所述之將兩桿件軸向連接的連接裝置，其中，該通孔的內徑表面由一中線位置往該第一端與該第二端分別軸向延伸一長度地形成一無螺紋段，該無螺紋段的內徑大於該通孔的內徑且不具有螺紋。The connecting device for axially connecting two rods according to claim 1, wherein the inner diameter surface of the through hole is formed by axially extending a length from a center line position to the first end and the second end respectively An unthreaded section whose inner diameter is greater than the inner diameter of the through hole and does not have threads. 根據請求項1至5中任一項所述之將兩桿件軸向連接的連接裝置，其中，該通孔的該第一端與該第二端分別形成有一第一擴大孔與一第二擴大孔，該第一擴大孔與該第二擴大孔的內徑大於該通孔的內徑，且該第一擴大孔與該第二擴大孔均不具有螺紋。The connecting device for axially connecting two rods according to any one of claims 1 to 5, wherein the first end and the second end of the through hole are respectively formed with a first enlarged hole and a second An enlarged hole, the inner diameter of the first enlarged hole and the second enlarged hole is larger than the inner diameter of the through hole, and the first enlarged hole and the second enlarged hole have no thread. 根據請求項1至5中任一項所述之將兩桿件軸向連接的連接裝置，其中，該通孔從該第一端至該第二端以相同的內徑延伸，該第一桿件的該左外螺紋的長度範圍以相同的外徑延伸，並且該第二桿件的該右外螺紋的長度範圍以相同的外徑延伸。The connecting device for axially connecting two rods according to any one of claims 1 to 5, wherein the through hole extends from the first end to the second end with the same inner diameter, and the first rod The length range of the left external thread of the element extends with the same outer diameter, and the length range of the right external thread of the second rod element extends with the same outer diameter. 一種將兩桿件軸向連接的方法，包括： 提供一中空套筒，在該中空套筒的軸向貫通的一通孔的相對兩端往相對方向的中間位置分別延伸形成一左內螺紋與一右內螺紋，並且該左、右內螺紋的終端彼此鄰接； 提供一第一桿件，在其一端的外徑形成匹配於該左內螺紋的一左外螺紋； 提供一第二桿件，在其一端的外徑形成匹配於該右內螺紋的一右外螺紋； 將該第一桿件的該左外螺紋螺旋組合於該左內螺紋，以及將該第二桿件的該右外螺紋螺旋組合於該右內螺紋； 將該中空套筒往一方向旋轉，使該第一桿件與該第二桿件同時往彼此靠近的方向軸向地移動，直到該第一、二桿件的端部彼此抵觸以完成連接。A method for axially connecting two rods includes: providing a hollow sleeve, and a left internal thread and a left internal thread and a left internal thread and a left internal thread and a left internal thread and a left internal thread Right internal thread, and the terminals of the left and right internal threads are adjacent to each other; provide a first rod, and form a left external thread matching the left internal thread at the outer diameter of one end; provide a second rod, The outer diameter of one end forms a right external thread that matches the right internal thread; the left external thread of the first rod is spirally combined with the left internal thread, and the right external thread of the second rod is spiral Combined with the right internal thread; rotating the hollow sleeve in one direction so that the first rod and the second rod move axially toward each other at the same time, until the ends of the first and second rods The parts conflict with each other to complete the connection. 根據請求項8所述之方法，其中，進一步提供至少一墊片，該墊片被軸向地置入該中空套筒的該通孔中，該第一、二桿件的端部係抵觸於該墊片的相對兩面以完成該連接。The method according to claim 8, wherein at least one gasket is further provided, the gasket is axially inserted into the through hole of the hollow sleeve, and the ends of the first and second rods are in contact with The opposite sides of the gasket complete the connection. 根據請求項8所述之方法，其中，該第一桿件與該第二桿件的至少其中之一，在其具有該左外螺紋或該右外螺紋的端部軸向突出地形成有不具螺紋的一突出端，該第一、二桿件的該兩突出端係彼此抵觸以完成該連接。The method according to claim 8, wherein at least one of the first rod member and the second rod member is axially protrudingly formed with an end portion having the left external thread or the right external thread. A protruding end of the screw thread and the two protruding ends of the first and second rods conflict with each other to complete the connection.
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