TWI808512B

TWI808512B - Torque wrench

Info

Publication number: TWI808512B
Application number: TW110139169A
Authority: TW
Inventors: 李安立
Original assignee: 真好產業有限公司
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2023-07-11
Also published as: TW202317332A

Abstract

A torque wrench includes a main body, a bushing and a driving member. The main body includes a pipe casing and a working rod. The working rod is rotatably connected to the pipe casing. The bushing is arranged around the portion where the working rod protrudes from the sleeve. The bushing is fixed to the working rod. The driving member includes a perforation and a working head. The perforation extends along a first direction. The driving member is slidably arranged around one of the bushing and the pipe casing.

Description

扭力扳手torque wrench

本發明係有關於一種扭力扳手。 The invention relates to a torque wrench.

按，扭力扳手用於轉動螺栓或螺帽，該扭力扳手加裝了可以預先設定扭力值的扭力機構，以在扳動螺栓或螺帽之過程中，一旦扭力超出預設值時，即會產生跳脫之手感來提醒使用者，以避免扭力過大造成螺栓或螺帽等機件崩牙毀損等。然而，一般扭力扳手之驅動頭部的尺寸規格為固定，而會導致使用者需準備多種具有不同尺寸規格驅動頭部之扭力扳手，如此導致實用性不高，存在亟待改善之缺弊。 Press, the torque wrench is used to turn the bolt or nut. The torque wrench is equipped with a torque mechanism that can set the torque value in advance. In the process of turning the bolt or nut, once the torque exceeds the preset value, it will produce a jumping feel to remind the user, so as to avoid the damage of the bolts or nuts and other parts caused by excessive torque. However, the size of the driving head of the general torque wrench is fixed, and the user needs to prepare a variety of torque wrenches with different sizes and specifications of the driving head, which leads to low practicability and has disadvantages that need to be improved.

因此，有必要提供一種新穎且具有進步性之扭力扳手，以解決上述之問題。 Therefore, it is necessary to provide a novel and progressive torque wrench to solve the above problems.

本發明之主要目的在於提供一種扭力扳手，該扭力扳手之驅動件可拆換及滑動，因此更加具有實用性，以符合經濟效益。 The main purpose of the present invention is to provide a torque wrench, the drive part of the torque wrench can be disassembled and slidable, so it is more practical and economical.

為達成上述目的，本發明提供一種扭力扳手，包括一本體、一襯套及一驅動件。該本體定義相垂直之一第一方向及一第二方向，包括一套管及一工作桿，該工作桿沿該第一方向插設於該套管內並沿該第二方向樞接於該套管，當該工作桿受到大於一扭力預設值之扭力時會相對該套管擺動。該襯套套設於該工作桿伸出該套管之部位並與該工作桿相固定。該驅動件包括一穿孔、一工作頭及一彈抵件，該穿孔沿該第一方向穿設，該工作頭沿該第二方向延伸，該驅動件藉由該穿孔可滑動地套設於該襯套與該套管其中一者，該彈抵件設於該穿孔內並沿該第二方向彈抵於該襯套。 To achieve the above purpose, the present invention provides a torque wrench, which includes a body, a bushing and a driving part. The body defines a first direction and a second direction perpendicular to each other, including a sleeve and A working rod, the working rod is inserted in the casing along the first direction and pivotally connected to the casing along the second direction, and will swing relative to the casing when the working rod is subjected to a torsion force greater than a preset value of torsion. The bushing is set on the part where the working rod protrudes from the casing and is fixed with the working rod. The driving part includes a perforation, a working head and a resilient part, the perforating hole is pierced along the first direction, the working head extends along the second direction, the driving part is slidably sleeved on one of the bush and the sleeve through the through hole, the resilient part is arranged in the through hole and bounces against the bushing along the second direction.

1:本體 1: Ontology

11:凹孔 11: Concave hole

12:導引槽 12: Guide groove

13:樞軸 13: Pivot

14:墊圈 14: Gasket

2:套管 2: Casing

3:工作桿 3: Working rod

31:第三鎖孔 31: The third keyhole

32:第二鎖固件 32: Second locking piece

4:驅動件 4: Driver

41:穿孔 41: perforation

42:工作頭 42: Working head

421:延伸段 421: extension

422:接頭 422: Connector

43:彈抵件 43: Bouncing parts

431:卡件 431: card

432:彈性件 432: Elastic parts

44:底板 44: Bottom plate

45:頂板 45: top plate

46:第一鎖孔 46: The first keyhole

47:第一鎖固件 47: The first locking piece

5:襯套 5: Bushing

51:第二鎖孔 51: Second keyhole

52:蓋板 52: cover plate

53:容孔 53: Hole

6:套筒 6: Sleeve

61:第一端 61: first end

62:第二端 62: second end

L1:第一方向 L1: the first direction

L2:第二方向 L2: the second direction

圖1為本發明一較佳實施例之立體圖。 Fig. 1 is a perspective view of a preferred embodiment of the present invention.

圖2為本發明一較佳實施例之分解圖。 Fig. 2 is an exploded view of a preferred embodiment of the present invention.

圖3為本發明一較佳實施例之局部分解圖。 Fig. 3 is a partial exploded view of a preferred embodiment of the present invention.

圖4為本發明一較佳實施例之局部示意圖。 Fig. 4 is a partial schematic diagram of a preferred embodiment of the present invention.

圖5為本發明一較佳實施例之側視剖面圖。 Fig. 5 is a side sectional view of a preferred embodiment of the present invention.

圖6為本發明一較佳實施例之操作示意圖。 Fig. 6 is a schematic diagram of the operation of a preferred embodiment of the present invention.

圖7及8為本發明第一較佳實施例之裝配示意圖。 7 and 8 are schematic diagrams of assembly of the first preferred embodiment of the present invention.

以下僅以實施例說明本發明可能之實施態樣，然並非用以限制本發明所欲保護之範疇，合先敘明。 The following examples illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention.

請參考圖1至8，其顯示本發明之一較佳實施例，本發明之扭力扳手包括一本體1、一襯套5及一驅動件4。 Please refer to FIGS. 1 to 8 , which show a preferred embodiment of the present invention. The torque wrench of the present invention includes a body 1 , a bushing 5 and a driving member 4 .

該本體1定義相垂直之一第一方向L1及一第二方向L2，包括一套管2及一工作桿3，該工作桿3沿該第一方向L1插設於該套管2內並沿該第二方向L2樞接於該套管2，當該工作桿3受到大於一扭力預設值之扭力時會相對該套管2擺動，於本實施例中該本體1包括一樞軸13，該樞軸13沿該第二方向L2穿設於該套管2與該工作桿3，以使該工作桿3受到大於該扭力預設值之扭力時會相對該套管2擺動，以提醒使用者勿再進行鎖固。較佳地，該工作桿3套設有二墊圈14，該二墊圈14分別夾抵於該工作桿3與該套管2之間，該樞軸13位於該二墊圈14之間，該二墊圈14可避免該工作桿3相對該套管2搖晃，且可具有防水防塵之功能。 The main body 1 defines a vertical first direction L1 and a second direction L2, and includes a sleeve 2 and a working rod 3. The working rod 3 is inserted in the sleeve 2 along the first direction L1 and pivotally connected to the sleeve 2 along the second direction L2. Rod 3, so that when the working rod 3 is subjected to a torque greater than the preset value of the torque, it will swing relative to the sleeve 2, so as to remind the user not to perform locking. Preferably, the working rod 3 is covered with two washers 14, and the two washers 14 are clamped between the working rod 3 and the sleeve 2 respectively, the pivot 13 is located between the two washers 14, the two washers 14 can prevent the working rod 3 from shaking relative to the sleeve 2, and can have the function of waterproof and dustproof.

該襯套5套設於該工作桿3伸出該套管2之部位並與該工作桿3相固定。 The bushing 5 is sheathed on the part where the working rod 3 protrudes from the casing 2 and is fixed with the working rod 3 .

該驅動件4包括一穿孔41、一工作頭42及一彈抵件43，該穿孔41沿該第一方向L1穿設，該工作頭42沿該第二方向L2延伸，該驅動件4藉由該穿孔41可滑動地套設於該襯套5與該套管2其中一者，該彈抵件43設於該穿孔41內並沿該第二方向L2彈抵於該襯套5。 The driving member 4 includes a perforation 41, a working head 42 and a resilient member 43. The perforating hole 41 penetrates along the first direction L1, and the working head 42 extends along the second direction L2. The driving member 4 is slidably sleeved on one of the bush 5 and the sleeve 2 through the through hole 41. The resilient member 43 is disposed in the through hole 41 and bounces against the bushing 5 along the second direction L2.

藉此，由於該驅動件4係藉由該穿孔41可滑動地套設於該襯套5與該套管2其中一者，因此該驅動件4可方便拆除進行維修、或更換以配合不同規格尺寸之螺栓或螺帽。當該驅動件4套設於該襯套5時可進行精準控制扭力之鎖固作業(如圖1所示)，當欲進行大扭力之鎖固作業時，可將該驅動件4滑動至該套管2(如圖6所示)，使用者雙手可分別握持住該本體1之兩端以進行較大扭力之鎖固作業。 Thereby, since the driving member 4 is slidably sleeved on one of the bushing 5 and the bushing 2 through the through hole 41, the driving member 4 can be easily removed for maintenance or replaced to match bolts or nuts of different sizes. When the driving part 4 is sleeved on the bushing 5, the locking operation with precise control of torque can be performed (as shown in Figure 1). When the locking operation with high torque is desired, the driving part 4 can be slid to the bushing 2 (as shown in Figure 6), and the user can hold both ends of the body 1 with both hands to perform locking with high torque.

具體而言，該驅動件4設有一底板44，該底板44一側朝向該穿孔41，該彈抵件43設於該底板44朝向於該穿孔41之一側，該工作頭42延伸於該底板 44，該襯套5之外周壁與該套管2之外周壁分別徑向設有一凹孔11，該彈抵件43可選擇性地彈抵於其中一該凹孔11，於本實施例中該襯套5與該套管2分別設有一該凹孔11，以避免該驅動件4任意相對該襯套5或該套管2滑動，使用者欲滑動該驅動件4時需施以一較大力道方能滑動該驅動件4。要說明的是，於其它實施例中該襯套為可拆卸地套設於該工作桿，於其它實施例中該襯套與該工作桿亦可為一體連接。 Specifically, the driving member 4 is provided with a bottom plate 44, one side of the bottom plate 44 faces the through hole 41, the resilient member 43 is arranged on the side of the bottom plate 44 facing the through hole 41, and the working head 42 extends on the bottom plate 44. The outer peripheral wall of the bushing 5 and the outer peripheral wall of the sleeve 2 are respectively radially provided with a recessed hole 11, and the resilient member 43 can selectively bounce against one of the recessed holes 11. In this embodiment, the bushing 5 and the sleeve 2 are respectively provided with a recessed hole 11 to prevent the driving part 4 from sliding relative to the bushing 5 or the sleeve 2. When the user wants to slide the driving part 4, a relatively large force is required to slide the driving part 4. It should be noted that, in other embodiments, the bushing is detachably sheathed on the working rod, and in other embodiments, the bushing and the working rod can also be integrally connected.

其中，該驅動件4沿該第二方向L2相對底板44之一端設有一頂板45，該穿孔41位於該頂板45與該底板44之間，該頂板45沿該第二方向L2穿設有一第一鎖孔46，該襯套5沿該第二方向L2設有一容孔53，一第一鎖固件47穿設於該第一鎖孔46並可選擇性地伸入該容孔53，以將該驅動件4與該工作桿3相固定，於其它實施例中不設有該第一鎖固件而僅藉由該彈抵件與該凹孔之配合亦無不可。 Wherein, the driving member 4 is provided with a top plate 45 along the second direction L2 opposite to the end of the bottom plate 44, the perforation 41 is located between the top plate 45 and the bottom plate 44, the top plate 45 is pierced with a first locking hole 46 along the second direction L2, the bushing 5 is provided with a receiving hole 53 along the second direction L2, a first locking member 47 is penetrated in the first locking hole 46 and can selectively extend into the receiving hole 53, so that the driving member 4 and the working rod 3 are fixed. In other embodiments, the first locking member is not provided, and only the cooperation between the resilient member and the concave hole is not necessary.

較佳地，該襯套5之外徑的徑向尺寸等於該套管2之外徑的徑向尺寸，以使該驅動件4於該襯套5與套管2之間滑動時較平穩，該襯套5之外徑與該套管2之外徑設有一沿該第一方向L1延伸之導引槽12，該導引槽12與該容孔53相重疊，當該驅動件4滑動時，該第一鎖固件47可伸入該導引槽12進行限位，可避免該驅動件4相對該襯套5或該套管2轉動。 Preferably, the radial dimension of the outer diameter of the bushing 5 is equal to the radial dimension of the outer diameter of the bushing 2, so that the driving member 4 is relatively stable when sliding between the bushing 5 and the bushing 2. The outer diameter of the bushing 5 and the outer diameter of the bushing 2 are provided with a guide groove 12 extending along the first direction L1, and the guiding groove 12 overlaps with the receiving hole 53. When the driving member 4 slides, the first locking member 47 can extend into the guiding groove 12 to limit the position of the driving member 4. Rotate relative to the bushing 5 or the sleeve 2 .

進一步的說，該襯套5徑向設有一第二鎖孔51，該工作桿3徑向設有一第三鎖孔31，一第二鎖固件32鎖設於該第二鎖孔51與該第三鎖孔31，以使該襯套5固定於該套管2。於本實施例中該襯套5沿該第一方向L1之一端設有一蓋板52，該蓋板52抵頂於該工作桿3遠離該套管2之端面，以進行定位及避免該工作桿3外露而受到外物碰撞損壞。 Furthermore, the bushing 5 is radially provided with a second locking hole 51 , the working rod 3 is radially provided with a third locking hole 31 , and a second locking member 32 is locked in the second locking hole 51 and the third locking hole 31 so that the bushing 5 is fixed to the casing 2 . In this embodiment, one end of the bushing 5 along the first direction L1 is provided with a cover plate 52, and the cover plate 52 abuts against the end surface of the working rod 3 away from the sleeve 2 for positioning and preventing the working rod 3 from being exposed and being damaged by collision with foreign objects.

該工作頭42包括一延伸段421及多變形柱狀之一接頭422，該延伸段421連接於該接頭422與該底板44之間，該彈抵件43包括一卡件431及一彈性件432，該彈性件432彈抵於該底板44與該卡件431之間，以常態地將該彈抵件43朝該穿孔41之方向彈抵。該接頭422可供組接於一套筒6，該套筒6供組接螺栓或螺帽，該套筒6設有一較小徑之一第一端61、較大徑之一第二端62，使用者可根據螺栓或螺帽之尺寸規格而將該接頭422組接於該第一端61或該第二端62(如圖7、8所示)。於本實施例中該套管2為圓管，該工作桿3為圓桿，該穿孔41為圓孔，該接頭422為四邊形柱狀。 The working head 42 includes an extension section 421 and a joint 422 of multiple deformable columns. The extension section 421 is connected between the joint 422 and the base plate 44. The elastic piece 43 includes a clip 431 and an elastic piece 432. The joint 422 can be assembled to a sleeve 6, and the sleeve 6 is used to assemble bolts or nuts. The sleeve 6 is provided with a first end 61 with a smaller diameter and a second end 62 with a larger diameter. The user can assemble the joint 422 to the first end 61 or the second end 62 according to the size of the bolt or nut (as shown in Figures 7 and 8). In this embodiment, the casing 2 is a round tube, the working rod 3 is a round rod, the through hole 41 is a round hole, and the joint 422 is a quadrangular column.

1:本體 13:樞軸 4:驅動件 5:襯套 1: Ontology 13: Pivot 4: Driver 5: Bushing

Claims

一種扭力扳手，包括：一本體，定義相垂直之一第一方向及一第二方向，包括一套管及一工作桿，該工作桿沿該第一方向插設於該套管內並沿該第二方向樞接於該套管，當該工作桿受到大於一扭力預設值之扭力時會相對該套管擺動；一襯套，套設於該工作桿伸出該套管之部位並與該工作桿相固定；一驅動件，包括一穿孔、一工作頭及一彈抵件，該穿孔沿該第一方向穿設，該工作頭沿該第二方向延伸，該驅動件藉由該穿孔可滑動地套設於該襯套與該套管其中一者，該彈抵件設於該穿孔內並沿該第二方向彈抵於該襯套。 A torque wrench comprising: A body, defining a first direction and a second direction perpendicular to each other, including a bushing and a working rod, the working rod is inserted into the bushing along the first direction and pivotally connected to the bushing along the second direction, and will swing relative to the bushing when the working rod is subjected to a torsion force greater than a preset torque value; a bushing, sleeved on the part where the working rod protrudes from the bushing and fixed with the working rod; A driving part includes a perforation, a working head and a resilient part, the perforating hole is pierced along the first direction, the working head extends along the second direction, the driving part is slidably sleeved on one of the bush and the sleeve through the through hole, the resilient part is arranged in the through hole and bounces against the bushing along the second direction.

如請求項1所述的扭力扳手，其中該驅動件設有一底板，該底板一側朝向該穿孔，該彈抵件設於該底板朝向於該穿孔之一側，該工作頭延伸於該底板，該襯套之外周壁與該套管之外周壁分別徑向設有一凹孔，該彈抵件可選擇性地彈抵於其中一該凹孔。The torque wrench as described in claim 1, wherein the driving part is provided with a base plate, one side of the base plate faces the through hole, the spring-resisting member is arranged on the side of the base plate facing the perforation hole, the working head extends from the base plate, the outer peripheral wall of the bushing and the outer peripheral wall of the sleeve are radially provided with a recessed hole, and the resilient member can selectively spring against one of the recessed holes.

如請求項2所述的扭力扳手，其中該驅動件沿該第二方向相對底板之一端設有一頂板，該穿孔位於該頂板與該底板之間，該頂板沿該第二方向穿設有一第一鎖孔，該襯套沿該第二方向設有一容孔，一第一鎖固件穿設於該第一鎖孔並可選擇性地伸入該容孔。The torque wrench as described in claim 2, wherein the driving member is provided with a top plate at an end opposite to the bottom plate along the second direction, the through hole is located between the top plate and the bottom plate, the top plate is pierced with a first locking hole along the second direction, the bushing is provided with a receiving hole along the second direction, and a first locking member is passed through the first locking hole and can selectively extend into the receiving hole.

如請求項3所述的扭力扳手，其中該襯套之外徑的徑向尺寸等於該套管之外徑的徑向尺寸，該襯套之外徑與該套管之外徑設有一沿該第一方向延伸之導引槽，該導引槽與該容孔相重疊。The torque wrench according to claim 3, wherein the radial dimension of the outer diameter of the bush is equal to the radial dimension of the outer diameter of the sleeve, and the outer diameter of the bush and the outer diameter of the sleeve are provided with a guide groove extending along the first direction, and the guide groove overlaps with the receiving hole.

如請求項4所述的扭力扳手，其中該襯套徑向設有一第二鎖孔，該工作桿徑向設有一第三鎖孔，一第二鎖固件鎖設於該第二鎖孔與該第三鎖孔。The torque wrench according to claim 4, wherein the bushing is radially provided with a second locking hole, the working rod is radially provided with a third locking hole, and a second locking member is locked in the second locking hole and the third locking hole.

如請求項2所述的扭力扳手，其中該工作頭包括一延伸段及多變形柱狀之一接頭，該延伸段連接於該接頭與該底板之間，該彈抵件包括一卡件及一彈性件，該彈性件彈抵於該底板與該卡件之間。The torque wrench as described in claim 2, wherein the working head includes an extension section and a multi-deformable cylindrical joint, the extension section is connected between the joint and the bottom plate, the elastic piece includes a clip and an elastic piece, and the elastic piece bounces between the bottom plate and the clip.

如請求項1所述的扭力扳手，其中該本體包括一樞軸，該樞軸沿該第二方向穿設於該套管與該工作桿。The torque wrench as claimed in claim 1, wherein the body includes a pivot, and the pivot passes through the sleeve and the working rod along the second direction.

如請求項7所述的扭力扳手，其中該工作桿套設有二墊圈，該二墊圈分別夾抵於該工作桿與該套管之間，該樞軸位於該二墊圈之間。The torque wrench as claimed in item 7, wherein the working rod is covered with two washers, and the two washers are clamped between the working rod and the sleeve respectively, and the pivot is located between the two washers.

如請求項1至8其中任一項所述的扭力扳手，其中該襯套沿該第一方向之一端設有一蓋板，該蓋板抵頂於該工作桿遠離該套管之端面。The torque wrench according to any one of Claims 1 to 8, wherein one end of the bush along the first direction is provided with a cover plate, and the cover plate abuts against the end surface of the working rod away from the sleeve.

如請求項6所述的扭力扳手，其中該本體包括一樞軸，該樞軸沿該第二方向穿設於該套管與該工作桿；該工作桿套設有二墊圈，該二墊圈分別夾抵於該工作桿與該套管之間，該樞軸位於該二墊圈之間；該襯套沿該第一方向之一端設有一蓋板，該蓋板抵頂於該工作桿遠離該套管之端面；該套管為圓管，該工作桿為圓桿，該穿孔為圓孔，該接頭為四邊形柱狀。The torque wrench as described in claim 6, wherein the body includes a pivot, and the pivot passes through the sleeve and the working rod along the second direction; the working rod is covered with two washers, and the two washers are clamped between the working rod and the sleeve respectively, and the pivot is located between the two washers; one end of the bush along the first direction is provided with a cover plate, and the cover is against the end surface of the working rod away from the sleeve; the sleeve is a round tube, the working rod is a round rod, and the through hole is A circular hole, the joint is a quadrilateral column.