CN203471672U - Ratchet wheel screwdriver - Google Patents
Ratchet wheel screwdriver Download PDFInfo
- Publication number
- CN203471672U CN203471672U CN201320582234.2U CN201320582234U CN203471672U CN 203471672 U CN203471672 U CN 203471672U CN 201320582234 U CN201320582234 U CN 201320582234U CN 203471672 U CN203471672 U CN 203471672U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- control lever
- rear portion
- ratchet wheel
- screwdriver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
- B25B15/04—Screwdrivers operated by rotating the handle with ratchet action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
- B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
- B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
- B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
A ratchet wheel screwdriver comprises a control rod, a ratchet wheel rod and a reversing cover. Two openings communicated to the hollow center of the control rod are formed in the outer surface of the rear portion of the control rod. Each opening internally contains a ratchet wheel piece and a spring, wherein the outer side end of the ratchet wheel piece is exposed out of the opening and located on the inner surface of the reversing cover, and the inner side end of the ratchet wheel piece is exposed out of the opening and matched with a ratchet wheel. Two control grooves are formed in the positions, matched with the outer side ends of the ratchet wheel pieces, on the inner surface of the reversing cover. When the reversing cover rotates on the outer side of the rear portion of the control rod towards one side, one control groove is matched with the outer side end of one ratchet wheel piece to make the inner side end of the ratchet wheel piece inwards abut against the ratchet wheel, and the ratchet wheel rod can rotate only in one direction relative to the control rod. The ratchet wheel screwdriver is simple in structure, convenient to install and easy to machine, the ratchet wheel rod can rotate in one direction relative to the control rod, rotation in the process of tightening a screw is avoided, and the ratchet wheel screwdriver is higher in use efficiency and more convenient to use.
Description
Technical field
The utility model relates to a kind of screwdriver, particularly relates to a kind of ratchet screwdriver.
Background technology
Screwdriver is as a kind of conventional handware, and for slack adjuster, common screwdriver generally includes handle, knife bar and cutter head, and user drives knife bar and cutter head to rotate by turning handle, thereby cutter head drives screw turns to carry out slack adjuster.General screwdriver rely on manpower to rotate completely to use relatively effort and also direction wayward, in rotation process, may cause convolution to make service efficiency lower.
Therefore, occurred that some can realize the ratchet screwdriver of unidirectional idle running, as disclosed in Chinese patent " CN2307658Y " " hidden ratchet screw driver " and Chinese patent " CN2900088Y " disclosed " a kind of Combined ratchet screw driver ", the disclosed ratchet screwdriver of Chinese patent " CN2307658Y " comprises spring, extension bar and drive link and by positioning ratchet wheel, the ratchet group that left-hand ratchet and dextrad ratchet form, the parts such as location lug, the disclosed ratchet screwdriver of Chinese patent " CN2900088Y " comprises Connection Block, commutation cover, brake block, the structures such as arcuated sliding bush, two ratchet screwdriver although it is so all can be realized the unidirectional idle running of this ratchet screwdriver, but these ratchet screwdriver complex structures, volume is larger, and assemble and manufacture also relative complex, easily because damage or the disappearance of a finding cause the malfunctioning of screwdriver.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of simple in structure, the ratchet screwdriver that can realize one-directional rotation easy to assembly is installed.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of ratchet screwdriver, comprise control lever, ratchet bar and commutation cover, the front portion of described control lever connects extraneous handle or is directly available for users to uses, the rear portion hollow of described control lever, the front portion of described ratchet bar is a ratchet, on its outer surface, there is ratchet, described ratchet be inserted in the rear portion of this control lever and can be in the rear portion of control lever around himself axle rotation, the rear portion of ratchet bar is that a junction connects outside driver bit, the described commutation enclosure is in the rear outside of this control lever, it is characterized in that:
The outer surface at the rear portion of described control lever is provided with two openings that are communicated to the center of its hollow, in described opening, be equipped with from inside to outside ratchet sheet and spring, between described spring and described commutation cover, be also provided with a spring base, the two ends of described spring are butted on respectively between spring base and ratchet sheet, the outboard end of described ratchet sheet is exposed to described opening and is positioned at commutation cover inner surface, the medial extremity of described ratchet sheet is exposed to described opening and matches with described ratchet, the position matching with the outboard end of described ratchet sheet on the inner surface of described commutation cover is provided with two and controls grooves, and lateral one side that covers on the rear portion of control lever along with commutation is rotated, one of them of described control groove matches and makes the medial extremity of ratchet sheet inwardly prop up ratchet with the outboard end of ratchet sheet described in one of them, make ratchet bar can only make with respect to control lever the one-directional rotation of a direction.
Preferably, for the position of retainer spring, described spring base is provided with two inside outstanding fixed blocks, and described spring is placed on described fixed block outside.
Preferably, the upper end of described ratchet sheet is wide compared with lower end, and described opening and described ratchet plate shape match, and the upper end outboard end of described ratchet sheet is exposed to described opening and is positioned at described control groove.
For the ease of controlling gear, in the external rear face of described control lever, one is distolateral, be provided with a blind hole radially along described control lever, from inside to outside accommodating back-moving spring and steel ball successively in described blind hole, described back-moving spring makes described steel ball have all the time outstanding laterally trend, the inner surface of described commutation cover be provided with match with described steel ball, along the inner surface side face of described commutation cover locating hole spaced apart.
In order to make overall structure after the assembling axial location firmly and between positioning control bar, ratchet bar and commutation cover, on the outer surface at the rear portion of described control lever, be also provided with the hole of the ratchet in a rear portion accommodating wedge type block and that lead to described control lever, the bottom of described ratchet is provided with the collar that a circle concaves, and the medial extremity of described wedge type block is stuck in described collar.
In order to make the overall structure of described screwdriver more firmly be difficult for getting loose, on the outer surface at the rear portion of described control lever, be also provided with a spring leaf, described spring leaf makes to have tension force between commutation cover and the rear portion of control lever between commutation cover and the rear portion of control lever, between described collar and the rear portion of ratchet bar, be provided with a step surface, the bottom of described commutation cover is positioned on described step surface.
Compared with prior art, the utility model has the advantage of this ratchet screwdriver, not only simple in structure, and easy for installation, be easy to processing, and can realize ratchet bar with respect to the one-directional rotation of control lever, prevent the revolution in tighten the screws process, make the service efficiency of this ratchet screwdriver higher, be more convenient for using.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of ratchet screwdriver of the present utility model.
Fig. 2 is the cutaway view along A-A line in Fig. 1.
Fig. 3 is the cutaway view along B-B line in Fig. 1.
Fig. 4 is the cutaway view along C-C line in Fig. 1.
Fig. 5 is the exploded view of ratchet screwdriver of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Ratchet screwdriver of the present utility model, as Figure 1-5, comprises control lever 1, ratchet bar 2 and commutation cover 3.The front portion 11 of described control lever 1 connects extraneous handle or is directly available for users to uses, and rear portion 12 hollows of control lever 1 are connected with ratchet bar 2 and commutation cover 3.The front portion of ratchet bar 2 is a ratchet 21, on its outer surface, there is ratchet, described ratchet 21 is inserted in the rear portion 12 of this control lever 1 and can be around the axle rotation of himself in the rear portion 12 of control lever 1, and the rear portion of ratchet bar 2 is that a junction 22 connects outside driver bit.Commutation cover 3 is placed on 12 outsides, rear portion of this control lever 1, ratchet 21 belows of described ratchet bar 2, be between ratchet 21 and connecting portion 22, to be provided with a step surface 25, the bottom of described commutation cover 3 is located on described step surface 25 to locate the axial location of described commutation cover 3.
A side on rear portion 12 outer surfaces of described control lever 1, be provided with two openings 121 that are communicated to the center of its hollow, in this opening 121, be equipped with respectively from inside to outside ratchet sheet 23 and spring 24, described ratchet sheet 23 exposes the inner side and its medial extremity that are positioned at described opening 121 and matches with the ratchet 21 at the rear portion 12 of control lever 1, the outboard end of described ratchet sheet 23 is exposed to the inner surface that described opening 121 outsides are positioned at described commutation cover 3, and described spring 24 makes ratchet sheet 23 have inside all the time trend.Between the commutation cover 3 in 12 outsides, rear portion of described spring 24 and control lever 1, be also provided with a spring base 4, described spring base 4 is provided with that two centers to control lever 1 are outstanding, i.e. inside outstanding fixed block 41, and described spring 24 is just placed on described fixed block 41 outsides and one end is butted on described spring base 4.
And as Fig. 3, shown in 5, the upper end of this ratchet sheet 23 is wide compared with lower end, described opening 121 matches with the shape of described ratchet sheet 23, the outboard end of described ratchet sheet 23 upper ends is exposed to the inner surface that described opening 121 is positioned at described commutation cover 3, the medial extremity of described ratchet sheet 23 is exposed to described opening 121 and matches with described ratchet 21, the position matching with the outboard end of described ratchet sheet 23 on the inner surface of described commutation cover 3 is provided with two and controls grooves 31, the outboard end of described ratchet sheet 23 is just placed in this control groove 31, and along with lateral one side at commutation cover 3 rear portions 12 at control lever 1 is rotated, one end of described control groove 31 will prop up the outboard end of described ratchet sheet 23, make the medial extremity of ratchet sheet 23 inwardly prop up ratchet 21, make this ratchet bar 2 can only do with respect to control lever 1 the unidirectional rotation of a direction.When commutation cover 3 rotates to opposite side, ratchet bar 2 can only be made with respect to control lever 1 one-directional rotation of other direction.And then realize the locking of the one-directional rotation between control lever 1 and ratchet bar 2, and preventing when using screwdriver, the also revolution thereupon of rotating ratchet bar 2 along with control lever 1, has improved the efficiency of tightening screw.For example, as shown in Figure 3, when commutation cover 3 rotates the outboard end that blocks ratchet sheet 23 to the control grooves 31 in left side, the medial extremity of this ratchet sheet 23 inwardly blocks ratchet 21, now ratchet can clockwise rotate with respect to described control lever 1, because ratchet 21 ratchet sheet 23 compressible spring 24 while clockwise rotating, and when ratchet 21 rotates counterclockwise with respect to control lever 1, because the effect of ratchet sheet 23 cannot be rotated ratchet 21, vice versa.
Preferably, opposite side on rear portion 12 outer surfaces of described control lever 1, be provided with a blind hole extending radially inwardly 122 along described control lever 1, from inside to outside accommodating back-moving spring 123 and steel ball 124 successively in described blind hole 122, described back-moving spring 123 makes described steel ball 124 have all the time outstanding laterally trend.That the inner surface of described commutation cover 3 is provided with is that match with described steel ball 124, along the inner surface side face of described commutation cover 3 locating hole 32 spaced apart.When commutation cover 3 rotates in control lever 1 outside, described steel ball 124 snaps in locating hole 32 to locate described commutation cover 3 in the position of control lever 1 outer rotation, matching with the position of the control groove 31 of commutation cover 3 in the position of this locating hole 32, makes this commutation cover 3 control ratchet bar 2 more obvious with respect to the gear of the one-directional rotation of control lever 1.
And axial location between control lever 1 and ratchet bar 2 is fixing not to be moved mutually in order to make, on the outer surface at the rear portion 12 of described control lever 1, be also provided with the hole (not shown) of an accommodating wedge type block 5, the ratchet 21 in described rear portion 12 is led in this hole, and be provided with the collar 26 that a circle concaves between described ratchet 21 and the rear portion connecting portion 22 of ratchet bar 2, as shown in Figure 5, the medial extremity of this wedge type block 5 is just stuck in described collar 26, and the rear portion 12 of control lever 1 and the axial location between ratchet bar 2 are determined.And in order to prevent mutually deviating from displacement between ratchet bar 2 and commutation cover 3, the outside of this wedge type block 5 is also provided with a spring leaf 6, described spring leaf 6 also can be located at wedge type block outside, as long as spring leaf 6 is between commutation cover 3 and the rear portion 12 of control lever 1, this spring leaf 6 makes to have tension force between commutation cover 3 and the rear portion 12 of control lever 1, and then makes mutually not deviate between commutation cover 3 and the rear portion 12 of control lever 1.Such structure can prevent that control lever 1 and ratchet bar 2 and commutation cover 3 from producing axial displacement, makes the ratchet screwdriver structure after assembling more firmly be difficult for getting loose.Described collar 26 is between the step surface and described ratchet 21 of above-mentioned placement commutation cover 3 bottoms.
This ratchet screwdriver, not only simple in structure, and also easy for installation, be easy to processing, and can realize ratchet bar with respect to the one-directional rotation of control lever, prevent the revolution in tighten the screws process, make the service efficiency of this ratchet screwdriver higher, be more convenient for using.
Although more than described preferred embodiment of the present utility model in detail, should be expressly understood that, for a person skilled in the art, the utility model can have various modifications and variations.All any modifications of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model within spirit of the present utility model and principle.
Claims (6)
1. a ratchet screwdriver, comprise control lever (1), ratchet bar (2) and commutation cover (3), the front portion (11) of described control lever (1) connects extraneous handle or is directly available for users to uses, rear portion (12) hollow of described control lever (1), the front portion of described ratchet bar (2) is a ratchet (21), on its outer surface, there is ratchet, described ratchet (21) be inserted in the rear portion (12) of this control lever (1) and can be in the rear portion (12) of control lever (1) around himself axle rotation, the rear portion of ratchet bar (2) is that a junction (22) connects outside driver bit, described commutation cover (3) is placed on the outside, rear portion (12) of this control lever (1), it is characterized in that:
The outer surface at the rear portion (12) of described control lever (1) is provided with two openings (121) that are communicated to the center of its hollow, in described opening (121), be equipped with from inside to outside ratchet sheet (23) and spring (24), between described spring (24) and described commutation cover (3), be also provided with a spring base (4), the two ends of described spring (24) are butted on respectively between spring base (4) and ratchet sheet (23), the outboard end of described ratchet sheet (23) is exposed to described opening (121) and is positioned at commutation cover (3) inner surface, the medial extremity of described ratchet sheet (23) is exposed to described opening (121) and matches with described ratchet (21), the position matching with the outboard end of described ratchet sheet (23) on the inner surface of described commutation cover (3) is provided with two and controls grooves (31), and along with commutation cover (3) rotates in the lateral at the rear portion (12) of control lever (1) side, one of them of described control groove (31) matches and makes the medial extremity of ratchet sheet (23) inwardly prop up ratchet (21) with the outboard end of ratchet sheet (23) described in one of them, make ratchet bar (2) can only make with respect to control lever (1) one-directional rotation of a direction.
2. ratchet screwdriver as claimed in claim 1, is characterized in that: described spring base (4) is provided with two inside outstanding fixed blocks (41), and described spring (24) is placed on described fixed block (41) outside.
3. ratchet screwdriver as claimed in claim 1, it is characterized in that: the upper end of described ratchet sheet (23) is wide compared with lower end, described opening (121) matches with described ratchet sheet (23) shape, and the upper end outboard end of described ratchet sheet (23) is exposed to described opening (121) and is positioned at described control groove (31).
4. ratchet screwdriver as claimed in claim 1, it is characterized in that: a side on rear portion (12) outer surface of described control lever (1), be provided with a blind hole radially (122) along described control lever (1), from inside to outside accommodating back-moving spring (123) and steel ball (124) successively in described blind hole (122), described back-moving spring (123) makes described steel ball (124) have all the time outstanding laterally trend, the inner surface of described commutation cover (3) is provided with described steel ball (124) and matches, along the inner surface side face of described commutation cover (3) locating hole (32) spaced apart.
5. ratchet screwdriver as claimed in claim 1, it is characterized in that: the hole that is also provided with the ratchet (21) in an a rear portion accommodating wedge type block (5) and that lead to described control lever (1) (12) on the outer surface at the rear portion (12) of described control lever (1), between the rear portion of described ratchet (21) and ratchet bar (2), be provided with the collar (26) that a circle concaves, the medial extremity of described wedge type block (5) is stuck in described collar (26).
6. ratchet screwdriver as claimed in claim 5, it is characterized in that: on the outer surface at the rear portion (12) of described control lever (1), be also provided with a spring leaf (6), described spring leaf (6) is positioned between commutation cover (3) and the rear portion (12) of control lever (1) and makes to have tension force between commutation cover (3) and the rear portion (12) of control lever (1), between the rear portion of described collar (26) and ratchet bar (2), be provided with a step surface (25), the bottom of described commutation cover (3) is positioned on described step surface (25).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582234.2U CN203471672U (en) | 2013-09-18 | 2013-09-18 | Ratchet wheel screwdriver |
| PCT/CN2013/001279 WO2015039267A1 (en) | 2013-09-18 | 2013-10-23 | Ratchet screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582234.2U CN203471672U (en) | 2013-09-18 | 2013-09-18 | Ratchet wheel screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203471672U true CN203471672U (en) | 2014-03-12 |
Family
ID=50220080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320582234.2U Expired - Lifetime CN203471672U (en) | 2013-09-18 | 2013-09-18 | Ratchet wheel screwdriver |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203471672U (en) |
| WO (1) | WO2015039267A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763754A (en) * | 2015-04-22 | 2015-07-08 | 上海齐迈五金有限公司 | Ratchet wheel |
| CN107457749A (en) * | 2017-09-19 | 2017-12-12 | 昆山义成工具有限公司 | the bending structure of handle |
| CN110355711A (en) * | 2019-08-14 | 2019-10-22 | 李理 | A kind of screwdriver with ratchet structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI576211B (en) * | 2016-03-31 | 2017-04-01 | Shao-Wei Chen | Ratchet screwdriver |
| TWI792504B (en) * | 2021-08-18 | 2023-02-11 | 義成工廠股份有限公司 | Ratchet screwdriver structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201579728U (en) * | 2009-12-17 | 2010-09-15 | 上虞环洲工具有限公司 | Disassembling tool |
| CN201659524U (en) * | 2010-02-08 | 2010-12-01 | 浙江三鼎工具有限公司 | Ratchet device of screwdriver, ratchet screwdriver and ratchet screwdriver handle |
| CN102198648B (en) * | 2010-03-25 | 2015-05-06 | 孙成纲 | Screwdriver of ratchet mechanism |
| CN201711912U (en) * | 2010-06-18 | 2011-01-19 | 工丰企业股份有限公司 | Telescopic type precise ratchet screwdriver |
| CN202780966U (en) * | 2012-08-21 | 2013-03-13 | 绍兴三鼎工具有限公司 | Ratchet screwdriver handle |
| CN202922503U (en) * | 2012-11-13 | 2013-05-08 | 孙成纲 | Ratchet wheel screwdriver |
-
2013
- 2013-09-18 CN CN201320582234.2U patent/CN203471672U/en not_active Expired - Lifetime
- 2013-10-23 WO PCT/CN2013/001279 patent/WO2015039267A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763754A (en) * | 2015-04-22 | 2015-07-08 | 上海齐迈五金有限公司 | Ratchet wheel |
| CN107457749A (en) * | 2017-09-19 | 2017-12-12 | 昆山义成工具有限公司 | the bending structure of handle |
| CN110355711A (en) * | 2019-08-14 | 2019-10-22 | 李理 | A kind of screwdriver with ratchet structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015039267A1 (en) | 2015-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203471672U (en) | Ratchet wheel screwdriver | |
| US9061546B2 (en) | Hub assembly for a bicycle | |
| US7527462B2 (en) | Ratchet clutch type cargo binding device for wheeled vehicle | |
| US20050011921A1 (en) | Lock fixing device for bicycle | |
| CN207771684U (en) | A kind of ratchet screwdriver | |
| CN102198648B (en) | Screwdriver of ratchet mechanism | |
| WO2016065671A1 (en) | Three gear-position ratcheting tool | |
| CN202922503U (en) | Ratchet wheel screwdriver | |
| CN102357855A (en) | Screw driver | |
| CN204843982U (en) | Ratchet screwdriver | |
| CN204135953U (en) | Ratchet spanner | |
| TWM515935U (en) | Assembled ratchet wrench | |
| CN203266531U (en) | Ratchet wheel screwdriver | |
| CN201326614Y (en) | Eccentric wheel for wood board connection | |
| CN203510045U (en) | Ratchet wheel screwdriver | |
| CN202391885U (en) | Furniture connecting fastener | |
| CN201645375U (en) | Ratchet wrench | |
| CN204036351U (en) | A kind of ratchet structure of screwdriver | |
| CN204397779U (en) | A kind of ratchet mechanism | |
| CN220302405U (en) | Leaf fork capable of being quickly installed for decorative ceiling fan | |
| CN201625945U (en) | Screwdriver with ratchet mechanism | |
| CN206416100U (en) | One kind rotation dismantling device | |
| CN219413435U (en) | Ratchet mechanism and screwdriver | |
| CN114135157B (en) | Handle and method for mounting handle | |
| CN108621074B (en) | Novel power-assisted handle of hexagonal wrench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
|
| CX01 | Expiry of patent term |