JP3237745U

JP3237745U - Tool fittings

Info

Publication number: JP3237745U
Application number: JP2022001077U
Authority: JP
Inventors: 文宏江
Original assignee: 薪螢企業有限公司
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-06-03
Anticipated expiration: 2032-04-06

Abstract

PROBLEM TO BE SOLVED: To provide a tool joint which can relay between an automatic rotary tool and a lock tool, has a simple structure, can be operated quickly and is convenient.
SOLUTION: This is a tool joint including a main body, a relay member, an elastic member and at least one receiving member. The main body is provided with a connecting portion having a through hole in the radial direction, and the locking member is formed into the through hole. It is housed in a movable manner. The relay member is inserted into the main body and can move to the first position and the second position. When the relay member is located at the first position, the relay member is pressed radially by the locking member, and the relay member is the first. When located in two positions, the relay member is not pressed against the locking member.
[Selection diagram] Fig. 1

Description

本考案は、工具継手に関する。 The present invention relates to a tool joint.

一般に、ロック作業を行う時、空気又は電動のいずれかの回転工具を用いてロック部材に接続してロックするが、従来の回転工具の駆動端に駆動レバーが設けられ、駆動レバーはロック部材に接続され、駆動レバーがロック部材に接続されることにより、駆動端が回転すると、レバーを回転駆動させてロック作業を行う。しかしながら、ロック部材が多種の仕様（例えば、ねじ、ナット及びボルト等）を有するため、実際の作業時に、駆動端は、スリーブ又は他の工具に接続されるように異なる駆動レバーを交換する必要があり、それによりナット又はボルト等のロック部材をロックすることができ、このように使用には不便であり、改善すべき欠点がある。 Generally, when performing locking work, a drive lever is provided at the drive end of a conventional rotary tool, and the drive lever is attached to the lock member, although it is connected to and locked to the lock member using either an pneumatic or electric rotary tool. When the drive end is rotated by being connected and the drive lever is connected to the lock member, the lever is rotationally driven to perform the locking operation. However, because the locking member has a variety of specifications (eg, screws, nuts and bolts, etc.), during actual work the drive end will need to be replaced with a different drive lever to connect to the sleeve or other tool. Yes, it can lock locking members such as nuts or bolts, which is inconvenient to use and has drawbacks to be improved.

そこで、上記した問題を解決するために、新規で進歩性のある工具継手を提供する必要がある。 Therefore, in order to solve the above-mentioned problems, it is necessary to provide a new and inventive step tool joint.

本考案は、自動回転工具とロック工具とを中継することができ、構造が簡単だけでなく操作が迅速に便利である工具継手を提供することを主な目的とする。 The main object of the present invention is to provide a tool joint that can relay between an automatic rotary tool and a lock tool, and is not only simple in structure but also quick and convenient to operate.

上記の目的を達成するために、本考案の工具継手は、本体、中継部材、弾性部材及び少なくとも１つの受止部材を含む。該本体は、径方向に貫通孔が開設された接続部が設けられ、係止部材が該貫通孔に移動可能に収容される。該中継部材は、該本体に挿設されて第１位置と第２位置に移動可能であり、該中継部材が該第１位置に位置する時、該中継部材が該係止部材に径方向に押圧し、該係止部材を径方向の外向きに押圧させ、該中継部材が該第２位置に位置する時、該中継部材が該係止部材に押圧されず、該係止部材を径方向の内向きに移動可能にさせ、該中継部材の該接続部から離れた一端に多角形の接続孔が設けられる。該弾性部材は、該本体と該中継部材との間に当接し、該中継部材を常に該第１位置に向けて移動させる。該少なくとも１つの受止部材は、該本体に設けられ、該中継部材が該本体から離脱することを回避するように該中継部材を受け止める。 In order to achieve the above object, the tool joint of the present invention includes a main body, a relay member, an elastic member and at least one receiving member. The main body is provided with a connecting portion having a through hole formed in the radial direction, and the locking member is movably accommodated in the through hole. The relay member is inserted into the main body and can move to the first position and the second position, and when the relay member is located at the first position, the relay member is radially attached to the locking member. Press and press the locking member radially outward, and when the relay member is located at the second position, the relay member is not pressed against the locking member and the locking member is pressed radially outward. Is movable inward, and a polygonal connection hole is provided at one end of the relay member away from the connection portion. The elastic member abuts between the main body and the relay member, and the relay member is always moved toward the first position. The at least one receiving member is provided on the main body and receives the relay member so as to prevent the relay member from detaching from the main body.

本考案の第１好ましい実施例の斜視図である。It is a perspective view of the 1st preferable embodiment of this invention. 本考案の第１好ましい実施例の分解図である。It is an exploded view of the 1st preferable Example of this invention. 本考案の第１好ましい実施例の分解図である。It is an exploded view of the 1st preferable Example of this invention. 本考案の第１好ましい実施例の操作の断面図である。It is sectional drawing of the operation of 1st preferable embodiment of this invention. 本考案の第１好ましい実施例の操作の断面図である。It is sectional drawing of the operation of 1st preferable embodiment of this invention. 本考案の第１好ましい実施例の他の態様の模式図である。It is a schematic diagram of another embodiment of the 1st preferred embodiment of the present invention. 本考案の第１好ましい実施例の他の態様の模式図である。It is a schematic diagram of another embodiment of the 1st preferred embodiment of the present invention. 本考案の第２好ましい実施例の斜視図である。It is a perspective view of the 2nd preferable embodiment of this invention. 本考案の第２好ましい実施例の分解図である。It is an exploded view of the 2nd preferable Example of this invention. 本考案の第２好ましい実施例の分解図である。It is an exploded view of the 2nd preferable Example of this invention. 本考案の第２好ましい実施例の操作の断面図である。It is sectional drawing of the operation of the 2nd preferable embodiment of this invention. 本考案の第２好ましい実施例の操作の断面図である。It is sectional drawing of the operation of the 2nd preferable embodiment of this invention.

以下、実施例にて本考案の可能な実施形態を説明するが、本考案の特許範囲を制限するものではない。 Hereinafter, possible embodiments of the present invention will be described with reference to examples, but the scope of the present invention is not limited.

図１から図５を参照し、それが本考案の第１好ましい実施例を示し、本考案の工具継手は、本体１、中継部材２、弾性部材３及び少なくとも１つの受止部材４を含む。 1 to 5, which show a first preferred embodiment of the present invention, the tool joint of the present invention includes a body 1, a relay member 2, an elastic member 3 and at least one receiving member 4.

該本体１には、径方向に貫通孔１２が開設された接続部１１が設けられ、係止部材１３が該貫通孔１２に移動可能に収容される。 The main body 1 is provided with a connecting portion 11 having a through hole 12 formed in the radial direction, and the locking member 13 is movably accommodated in the through hole 12.

該中継部材２は、該本体１に挿設されて第１位置と第２位置に移動可能であり、該中継部材２が該第１位置に位置する時、該中継部材２は、該係止部材１３に径方向に押圧され、該係止部材１３を径方向の外向きに押圧させ、該中継部材２が該第２位置に位置する時、該中継部材２は該係止部材１３に押圧されず、該係止部材１３を径方向の内向きに移動可能にさせ、該中継部材２の該接続部１１から離れた一端には自動回転工具に接続されるための多角形の接続孔２２３が設けられ、本実施例では、該接続孔２２３は四角孔であり、他の実施例では、六角孔又は他の形状であってもよい。 The relay member 2 is inserted into the main body 1 and can move to the first position and the second position, and when the relay member 2 is located at the first position, the relay member 2 is locked. When the member 13 is pressed radially and the locking member 13 is pressed outward in the radial direction and the relay member 2 is located at the second position, the relay member 2 presses against the locking member 13. Instead, the locking member 13 is made movable inward in the radial direction, and one end of the relay member 2 away from the connection portion 11 has a polygonal connection hole 223 for being connected to the automatic rotary tool. In this embodiment, the connection hole 223 is a square hole, and in other embodiments, it may be a hexagonal hole or another shape.

該弾性部材３は、該本体１と該中継部材２との間に当接し、該中継部材２を常に該第１位置に向けて移動させる。本実施例では、該中継部材２が該第１位置に向かう時、該中継部材２は該接続部１１から離れた方向に移動し、他の実施例では、該第１位置と該第２位置との相対位置は逆に設置されてもよい。 The elastic member 3 abuts between the main body 1 and the relay member 2, and the relay member 2 is always moved toward the first position. In this embodiment, when the relay member 2 heads toward the first position, the relay member 2 moves in a direction away from the connection portion 11, and in other embodiments, the first position and the second position. The relative position with and may be reversed.

該少なくとも１つの受止部材４は該本体１に設けられ、該中継部材２が該本体１からするように該中継部材２を受け止め、すなわち、該中継部材２が該第１位置に位置する時、該受止部材４は該中継部材２に受け止められる。 When the at least one receiving member 4 is provided on the main body 1 and the relay member 2 receives the relay member 2 as if it is from the main body 1, that is, when the relay member 2 is located at the first position. , The receiving member 4 is received by the relay member 2.

該中継部材２は、押圧部材２１及び接続ロッド２２をさらに含み、該押圧部材２１と該接続ロッド２２とが接続され、該中継部材２が該第１位置に位置する時、該押圧部材２１は該係止部材１３に径方向に押圧され、該係止部材１３を径方向の外向きに押圧させ、該中継部材２が該第２位置に位置する時、該押圧部材２１は該係止部材１３に押圧されず、該係止部材１３を径方向の内向きに移動可能にさせる。 The relay member 2 further includes a pressing member 21 and a connecting rod 22, and when the pressing member 21 and the connecting rod 22 are connected and the relay member 2 is located at the first position, the pressing member 21 When the locking member 13 is pressed radially and the locking member 13 is pressed radially outward and the relay member 2 is located at the second position, the pressing member 21 is the locking member. The locking member 13 is made movable inward in the radial direction without being pressed by the 13.

実際の操作時、ロック工具（図４、図５に示すスリーブ）を該接続部１１に嵌設しようとし、且つ該中継部材２が該第１位置に位置する時、該係止部材１３は該ロック工具と干渉し、該ロック工具を該本体１に押し当て続けると、該本体１が該ロック工具と該回転工具との間に挟まれて該中継部材２を該第２位置に移動させ、該係止部材１３が径方向の内向きに移動すると、該ロック工具は該接続部１１に円滑に嵌設され、それにより使用が便利であり、そして、該中継部材２が該第１位置に位置する時、該受止部材４は該中継部材２に受け止められ、該中継部材２が該本体１から離脱することを回避できる。 During the actual operation, when the locking tool (sleeve shown in FIGS. 4 and 5) is to be fitted to the connecting portion 11 and the relay member 2 is located at the first position, the locking member 13 is said to have the same. When the lock tool interferes with the lock tool and the lock tool is continuously pressed against the main body 1, the main body 1 is sandwiched between the lock tool and the rotary tool to move the relay member 2 to the second position. When the locking member 13 moves inward in the radial direction, the locking tool is smoothly fitted to the connecting portion 11, which is convenient to use, and the relay member 2 is in the first position. When positioned, the receiving member 4 is received by the relay member 2, and the relay member 2 can be prevented from being separated from the main body 1.

具体的には、該本体１の該接続部１１が設けられていない一端には嵌孔１４が開設され、該中継部材２は該嵌孔１４に移動可能に挿設され、該貫通孔１２は該嵌孔１４に連通し、該嵌孔１４の孔壁には少なくとも１つの収容孔１４１が穿設され、該接続ロッド２２の外周壁には第２環状溝２２１が設けられ、該少なくとも１つの受止部材４は、該少なくとも１つの収容孔１４１に収容されて該第２環状溝２２１に囲まれ、該少なくとも１つの収容孔１４１と該第２環状溝２２１の少なくとも１つの溝幅は、該受止部材４の径方向の寸法よりも大きく、該嵌孔１４は非円形孔であり、該接続ロッド２２は、形状が該嵌孔１４に対応する非円形のロッド部材であり、各該受止部材４は係止ボールであり、本実施例では、該第２環状溝２２１の溝幅は、該受止部材４の径方向の寸法よりも大きく、該第１位置と該第２位置との距離とする。 Specifically, a fitting hole 14 is opened at one end of the main body 1 where the connecting portion 11 is not provided, the relay member 2 is movably inserted into the fitting hole 14, and the through hole 12 is formed. At least one accommodating hole 141 is formed in the hole wall of the fitting hole 14 so as to communicate with the fitting hole 14, and a second annular groove 221 is provided in the outer peripheral wall of the connection rod 22. The receiving member 4 is accommodated in the at least one accommodating hole 141 and surrounded by the second annular groove 221. The at least one accommodating hole 141 and the at least one groove width of the second annular groove 221 are the same. Larger than the radial dimension of the receiving member 4, the fitting hole 14 is a non-circular hole, and the connecting rod 22 is a non-circular rod member whose shape corresponds to the fitting hole 14, and each of the receiving members is The stopping member 4 is a locking ball, and in this embodiment, the groove width of the second annular groove 221 is larger than the radial dimension of the receiving member 4, and the first position and the second position The distance is.

ここで、該押圧部材２１は該接続ロッド２２に螺合され、該接続ロッド２２の径方向の寸法は該押圧部材２１の径方向の寸法よりも大きく、該押圧部材２１には雄ねじ２１１が設けられ、該接続ロッド２２には該雄ねじ２１１に螺合される雌ねじ２２２が設けられる。 Here, the pressing member 21 is screwed into the connecting rod 22, the radial dimension of the connecting rod 22 is larger than the radial dimension of the pressing member 21, and the pressing member 21 is provided with a male screw 211. The connection rod 22 is provided with a female screw 222 screwed into the male screw 211.

さらに、該嵌孔１４は、大径部１４２及び小径部１４３を含み、該大径部１４２は、該小径部１４３の該接続部１１から離れた一端に位置して段部１４４が形成され、該弾性部材３は、該押圧部材２１の該大径部１４２に突出する部分に嵌設されて該段部１４４と該接続ロッド２２の端面に当接し、該嵌孔１４は該本体１の対向する両端を貫通し、該接続ロッド２２は、該大径部１４２に回転不能に挿設され、本実施例では、該大径部１４２は六角孔状であり、該接続ロッド２２は六角柱状であり、これにより、該接続ロッド２２が該大径部１４２に対して回転できないようにし、本実施例の他の態様では、図６及び図７のように、接続ロッド２２Ｂ、２２Ｃの該大径部に挿入された一端は、楕円扁平状であってもよいし、方形状であってもよい。 Further, the fitting hole 14 includes a large-diameter portion 142 and a small-diameter portion 143, and the large-diameter portion 142 has a step portion 144 formed at one end of the small-diameter portion 143 away from the connection portion 11. The elastic member 3 is fitted in a portion of the pressing member 21 protruding from the large diameter portion 142 and abuts on the step portion 144 and the end surface of the connecting rod 22, and the fitting hole 14 faces the main body 1. The connecting rod 22 is rotatably inserted into the large diameter portion 142 so as to penetrate both ends thereof. In this embodiment, the large diameter portion 142 has a hexagonal hole shape, and the connecting rod 22 has a hexagonal columnar shape. This prevents the connecting rod 22 from rotating with respect to the large diameter portion 142, and in another embodiment of the present embodiment, as shown in FIGS. 6 and 7, the large diameter of the connecting rods 22B and 22C. One end inserted into the portion may be elliptical flat or square.

なお、本実施例の該押圧部材２１が該接続ロッド２２に螺合される（他の実施例では接続されてもよい）ため、製造時、該接続ロッド２２は単一の仕様で大量に製造することができ、該押圧部材２１及び該本体１は、実際の使用に応じて異なる仕様のロック工具に使用するために異なる仕様を有し、該押圧部材２１と該接続ロッド２２とが接続されることにより、該押圧部材２１と該接続ロッド２２とを同動接続させることができ、このように該接続ロッド２２と該押圧部材２１が一体に成形する製造コストを低減することができる。 Since the pressing member 21 of this embodiment is screwed into the connecting rod 22 (may be connected in other embodiments), the connecting rod 22 is manufactured in large quantities with a single specification at the time of manufacturing. The pressing member 21 and the main body 1 have different specifications for use in a lock tool having different specifications depending on actual use, and the pressing member 21 and the connecting rod 22 are connected to each other. Thereby, the pressing member 21 and the connecting rod 22 can be connected in the same motion, and thus the manufacturing cost for integrally forming the connecting rod 22 and the pressing member 21 can be reduced.

本実施例では、該押圧部材２１には斜面部２１２及び縮径部２１３が設けられ、該斜面部２１２は該縮径部２１３の方向に傾斜し、該中継部材２が該第１位置に位置する時、該斜面部２１２は該貫通孔１２に対応し、該中継部材２が該第２位置に位置する時、該縮径部２１３は該貫通孔１２に対応し、該斜面部２１２は、該縮径部２１３の該接続ロッド２２から離れた一側に位置する。本実施例では、該係止部材１３は、移動を容易にするように係止ボールである。 In this embodiment, the pressing member 21 is provided with a slope portion 212 and a reduced diameter portion 213, the slope portion 212 is inclined in the direction of the reduced diameter portion 213, and the relay member 2 is positioned at the first position. When the slope portion 212 corresponds to the through hole 12, when the relay member 2 is located at the second position, the reduced diameter portion 213 corresponds to the through hole 12, and the slope portion 212 corresponds to the through hole 12. It is located on one side of the reduced diameter portion 213 away from the connecting rod 22. In this embodiment, the locking member 13 is a locking ball so as to facilitate movement.

また、好ましくは、本実施例では、互いに接続された胴部５１と頂部５２を含むブッシュ５をさらに含み、該胴部５１は該本体１の該接続部１１から離れた一端に嵌設され、該頂部５２は、該接続ロッド２２に嵌設された穿設孔５３を含む。該ブッシュ５は、これらの受止部材４がこれらの収容孔１４１から離脱することを回避するように、これらの受止部材４を制限することができる。 Further, preferably, in this embodiment, a bush 5 including a body portion 51 and a top portion 52 connected to each other is further included, and the body portion 51 is fitted to one end of the main body 1 away from the connection portion 11. The top 52 includes a drilling hole 53 fitted in the connecting rod 22. The bush 5 can limit these receiving members 4 so as to prevent these receiving members 4 from detaching from these accommodating holes 141.

詳しくは、該工具継手は、該中継部材２が該本体１に挿入されていない部位に回転可能に嵌設された把持スリーブ２３をさらに含み、該把持スリーブ２３と該中継部材２との間には少なくとも１つの係止当接部材２３１が係止当接され、本実施例では、２つの該係止当接部材２３１を含み、そのうちの一方の該係止当接部材２３１は該把持スリーブ２３の内周壁と該中継部材２の外周壁との間に係止当接され、他方の該係止当接部材２３１は該中継部材２の外周壁と該把持スリーブ２３の該本体１から離れた一端に係止当接され、該把持スリーブ２３が該中継部材２に対して軸方向に沿って移動することを防止し、使用者は、該把持スリーブ２３を把持して操作することができ、作業時に該中継部材２が回転して中継部材２が手と擦れてけがをすることを回避することができる。 More specifically, the tool joint further includes a gripping sleeve 23 rotatably fitted in a portion where the relay member 2 is not inserted into the body 1, between the gripping sleeve 23 and the relay member 2. In this embodiment, at least one locking contact member 231 is locked and contacted, and in this embodiment, the locking contact member 231 is included, and one of the locking contact members 231 is the gripping sleeve 23. The locking contact was made between the inner peripheral wall of the relay member 2 and the outer peripheral wall of the relay member 2, and the other locking contact member 231 was separated from the outer peripheral wall of the relay member 2 and the main body 1 of the gripping sleeve 23. The gripping sleeve 23 is locked and abutted at one end to prevent the gripping sleeve 23 from moving along the axial direction with respect to the relay member 2, and the user can grip and operate the gripping sleeve 23. It is possible to prevent the relay member 2 from rotating and the relay member 2 from rubbing against the hand and being injured during the work.

図８から図１２を参照し、本考案の好ましい第２実施例では、該押圧部材２１Ａは該接続ロッド２２Ａと一体成形され、該接続ロッド２２Ａの径方向の寸法は該押圧部材２１Ａの径方向の寸法よりも大きく、該押圧部材２１Ａの使用材料のコストを低減することができる。 With reference to FIGS. 8 to 12, in a preferred second embodiment of the present invention, the pressing member 21A is integrally molded with the connecting rod 22A, and the radial dimension of the connecting rod 22A is the radial dimension of the pressing member 21A. It is larger than the size of the above, and the cost of the material used for the pressing member 21A can be reduced.

該本体１Ａの該接続部１１が設けられていない一端には嵌孔１４が開設され、該中継部材２Ａは該嵌孔１４に移動可能に挿設され、該貫通孔１２は該嵌孔１４に連通し、該嵌孔１４の孔壁には第１環状溝１４５Ａが設けられ、該接続ロッド２２Ａの外周壁には第２環状溝２２１が設けられ、該受止部材４Ａは該第１環状溝１４５Ａに収容されて該第２環状溝２２１に囲まれ、該第１環状溝１４５Ａと該第２環状溝２２１の少なくとも１つの溝幅は該受止部材４Ａの軸方向の厚さよりも大きく、該嵌孔１４は非円形孔であり、該接続ロッド２２Ａは、形状が該嵌孔１４に対応する非円形のロッド部材であり、該受止部材４ＡはＣ字形のスナップリングであり、本実施例では、該第２環状溝２２１の溝幅は該受止部材４Ａの方向の厚さよりも大きく、該第１位置と該第２位置との距離とする。 A fitting hole 14 is opened at one end of the main body 1A where the connecting portion 11 is not provided, the relay member 2A is movably inserted into the fitting hole 14, and the through hole 12 is inserted into the fitting hole 14. A first annular groove 145A is provided in the hole wall of the fitting hole 14, a second annular groove 221 is provided in the outer peripheral wall of the connection rod 22A, and the receiving member 4A is provided with the first annular groove. It is housed in 145A and surrounded by the second annular groove 221. The width of at least one of the first annular groove 145A and the second annular groove 221 is larger than the axial thickness of the receiving member 4A, and the groove width is larger than the axial thickness of the receiving member 4A. The fitting hole 14 is a non-circular hole, the connecting rod 22A is a non-circular rod member whose shape corresponds to the fitting hole 14, and the receiving member 4A is a C-shaped snap ring. Then, the groove width of the second annular groove 221 is larger than the thickness in the direction of the receiving member 4A, and is the distance between the first position and the second position.

１、１Ａ本体
１１接続部
１２貫通孔
１３係止部材
１４嵌孔
１４１収容孔
１４２大径部
１４３小径部
１４４段部
１４５Ａ第１環状溝
２、２Ａ中継部材
２１、２１Ａ押圧部材
２１１雄ねじ
２１２斜面部
２１３縮径部
２２、２２Ａ、２２Ｂ、２２Ｃ接続ロッド
２２１第２環状溝
２２２雌ねじ
２２３接続孔
２３把持スリーブ
２３１係止当接部材
３弾性部材
４、４Ａ受止部材
５ブッシュ
５１胴部
５２頂部
５３穿設孔 1, 1A Main body 11 Connection part 12 Through hole 13 Locking member 14 Fitting hole 141 Storage hole 142 Large diameter part 143 Small diameter part 144 Step part 145A First annular groove 2, 2A Relay member 21, 21A Pressing member 211 Male screw 212 Slope 213 Reduced diameter part 22, 22A, 22B, 22C Connection rod 221 Second annular groove 222 Female screw 223 Connection hole 23 Grip sleeve 231 Locking contact member 3 Elastic member 4, 4A Receiving member 5 Bush 51 Body 52 Top 53 Hole

Claims

It ’s a tool fitting,
A main body in which a connecting portion having a through hole is provided in the radial direction and a locking member is movably housed in the through hole,
It is a relay member that is inserted into the main body and can move to the first position and the second position. When the relay member is located at the first position, the relay member is radially connected to the locking member. When the relay member is positioned at the second position, the relay member is not pressed against the locking member, and the locking member is pressed to the diameter of the locking member. The relay member, which is movable inward in the direction and has a polygonal connection hole at one end away from the connection portion of the relay member, and the relay member.
An elastic member that abuts between the main body and the relay member and constantly moves the relay member toward the first position.
A tool joint provided on the body, comprising at least one receiving member that receives the relay member so as to prevent the relay member from detaching from the body.

The relay member further includes a pressing member and a connecting rod, and when the pressing member and the connecting rod are connected and the relay member is located at the first position, the pressing member is radially connected to the locking member. When the relay member is positioned at the second position, the pressing member is not pressed by the locking member, and the locking member is pressed radially outward. The tool joint according to claim 1, wherein the tool joint is movable inward.

A fitting hole is provided at one end of the main body where the connection portion is not provided, the relay member is movably inserted into the fitting hole, the through hole communicates with the fitting hole, and the fitting hole is formed. At least one accommodating hole is formed in the hole wall, a second annular groove is provided in the outer peripheral wall of the connecting rod, and the at least one receiving member is accommodated in the at least one accommodating hole. Surrounded by a second annular groove, the at least one accommodating hole and the at least one groove width of the second annular groove are larger than the radial dimension of the receiving member, and the fitting hole is a non-circular hole. The tool joint according to claim 2, wherein the connecting rod is a non-circular rod member whose shape corresponds to the fitting hole, and each receiving member is a locking ball.

The pressing member is screwed into the connecting rod, the radial dimension of the connecting rod is larger than the radial dimension of the pressing member, the pressing member is provided with a male screw, and the connecting rod is provided with the male screw. The tool joint according to claim 2, wherein a female screw to be screwed is provided.

The fitting hole includes a large-diameter portion and a small-diameter portion, the large-diameter portion has a step portion formed at one end of the small-diameter portion away from the connection portion, and the elastic member is a pressing member of the pressing member. It is fitted in a portion protruding from the large diameter portion and abuts on the end surface of the step portion and the connection rod, the fitting hole penetrates both opposite ends of the main body, and the connection rod is attached to the large diameter portion. The tool joint according to claim 3, which is inserted so as not to rotate.

The pressing member is provided with a slope portion and a reduced diameter portion, the slope portion is inclined in the direction of the reduced diameter portion, and when the relay member is located at the first position, the slope portion is formed in the through hole. Correspondingly, when the relay member is located at the second position, the reduced diameter portion corresponds to the through hole, and the slope portion is located on one side of the reduced diameter portion away from the connecting rod. Item 2. The tool joint according to Item 2.

Further including a bush containing a torso and a top connected to each other, the torso is fitted at one end of the body away from the connection, and the top is fitted with a hole fitted in the connection rod. The tool joint according to claim 2, including the tool joint.

The relay member further includes a gripping sleeve rotatably fitted in a portion not inserted into the body, and at least one locking contact member is locked between the gripping sleeve and the relay member. The tool joint according to claim 1, which is in contact with the tool joint.

The tool joint according to claim 2, wherein the pressing member is integrally molded with the connecting rod, and the radial dimension of the connecting rod is larger than the radial dimension of the pressing member.

A fitting hole is provided at one end of the main body where the connection portion is not provided, the relay member is movably inserted into the fitting hole, the through hole communicates with the fitting hole, and the fitting hole is formed. A first annular groove is provided in the hole wall, a second annular groove is provided in the outer peripheral wall of the connecting rod, and the receiving member is accommodated in the first annular groove and surrounded by the second annular groove. The width of at least one of the first annular groove and the second annular groove is larger than the axial thickness of the receiving member, the fitting hole is a non-circular hole, and the connecting rod has the shape described above. The tool joint according to claim 2, wherein the rod member is a non-circular rod member corresponding to a fitting hole, and the receiving member is a C-shaped snap ring.