CN207771684U - A kind of ratchet screwdriver - Google Patents
A kind of ratchet screwdriver Download PDFInfo
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- CN207771684U CN207771684U CN201820072627.1U CN201820072627U CN207771684U CN 207771684 U CN207771684 U CN 207771684U CN 201820072627 U CN201820072627 U CN 201820072627U CN 207771684 U CN207771684 U CN 207771684U
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- ratchet
- rear portion
- bar
- reversing switch
- screwdriver
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Abstract
A kind of ratchet screwdriver, including Ratchet body, ratchet bar and reversing switch, the front of ratchet bar is a tooth set, in the rear portion insertion tooth set of Ratchet body, the ratchet of two and the ratchet cooperation on tooth set inner surface are equipped in Ratchet body, reversing switch is an annular collar, reversing switch is set in the rear portion front position of Ratchet body, the front end face that the rear end of reversing switch is covered with tooth offsets, pass through aperture is axially offered in ratchet bar, the rear portion of Ratchet body axially offers corresponding centre bore, the rear portion of Ratchet body passes through through hole with after tooth set connection positioning by rivet, centre bore is by Ratchet body and ratchet bar riveting.The utility model is not only simple in structure, and easy for installation, and easy to process, the phenomenon that one-directional rotation of the ratchet bar relative to Ratchet body may be implemented, turned round when avoiding tightening screw, overall structure firm stable, the service efficiency higher for making the ratchet screwdriver, is more convenient for using.
Description
Technical field
The utility model is related to a kind of screwdrivers, more particularly to a kind of ratchet screwdriver.
Background technology
Screwdriver is used for slack adjuster as a kind of common handware, and common screwdriver generally includes handle, knife bar
And cutter head, user drive knife bar and cutter head to rotate by rotational handle, to which cutter head drives screw rotation to carry out slack adjuster.One
As screwdriver fully rely on manpower rotation to use relatively elaborate and direction not easy to control, may in rotation process
Cause convolution service efficiency relatively low.Therefore, the ratchet screwdriver unidirectionally to dally, such as Chinese patent can be realized by occurring some
" a kind of combination disclosed in " hidden ratchet screw driver " and Chinese patent " CN2900088Y " disclosed in " CN2307658Y "
Formula ratchet screwdriver "；Ratchet screwdriver disclosed in Chinese patent " CN2307658Y " include spring, extension bar and drive link and
The components such as the ratchet group, the positioning lug that are made of positioning ratchet wheel, left-hand ratchet and dextrad ratchet；Chinese patent
Ratchet screwdriver disclosed in " CN2900088Y " includes the structures such as connecting seat, retainer ring, brake block, arcuated sliding bush, although in this way
Two ratchet screwdriver can realize the unidirectional idle running of the ratchet screwdriver, but these ratchet screwdrivers it is complicated,
Volume is larger, and assembles and manufacture is also relative complex, is easy because the damage of small part or missing lead to screwdriver
Failure.
Through looking into, the Chinese patent of existing Patent No. 201520581104.6《A kind of ratchet screwdriver》, including control-rod,
The front of ratchet bar and annular ring, the ratchet bar is a sleeve, and the inner surface of the sleeve has a circle ratchet, the control
The rear portion of bar is inserted into the sleeve and can be rotated around the axis of its own in the sleeve, the rear portion of the control-rod
Fore-end is exposed to the sleeve, and is exposed on the position of the sleeve and is cased with annular ring, it is characterised in that：The control
It is set on the outer surface at the rear portion of bar processed there are two the groove to extend internally, interior be inserted into of the groove is equipped with spinal plate, the spinal plate
There is tooth form in outboard end and can be moved left and right along the week of control-rod in the outboard end of groove, in described two grooves
There is the outboard end of spinal plate the trend with the ratchet clamping in sleeve interior surface, the inner surface of annular ring to be equipped with control
The outboard end of groove, the control groove and two panels spinal plate cooperates, and as annular ring is outside the rear portion of control-rod
The rotation of side so that wherein a piece of in two panels spinal plate is separated with ratchet.This ratchet screwdriver has in structure to be changed greatly very much
Into, but structure is simple not enough, installation is also not convenient and fast.
Utility model content
The technical problem to be solved by the utility model is to provide it is a kind of it is simple in structure, be connected firmly and stablize and easy for installation
Efficiently ratchet screwdriver.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of ratchet screwdriver, including ratchet
Main body, ratchet bar and reversing switch, the front of ratchet bar are a tooth set, in the rear portion insertion tooth set of Ratchet body, Ratchet body
It is inside equipped with the ratchet of two and the ratchet cooperation on tooth set inner surface, reversing switch is an annular collar, and reversing switch is arranged
In the rear portion front position of Ratchet body, the front end face that the rear end of reversing switch is covered with tooth offsets, it is characterised in that：The ratchet
Axially offer pass through aperture in bar, the rear portion of Ratchet body axially offers corresponding centre bore, the rear portion of Ratchet body with
Pass through through hole, centre bore by Ratchet body and ratchet bar riveting by rivet after tooth set connection positioning, ratchet bar is in riveting
It can be rotated after connecing.
As an improvement, the through hole is the interior hexagonal stepped hole that rear portion aperture is big, front aperture is small, in Ratchet body
The aperture in heart hole is consistent with the front aperture of ratchet bar, and the rear end of rivet is corresponding with the interior rear portion aperture of hexagonal stepped hole
Hexagon, rivet is plugged in interior hexagonal stepped hole, centre bore, the step surface phase of the rear end of rivet and interior hexagonal stepped hole
To fixation.
As an improvement, the outer surface side at the rear portion of the Ratchet body is opened up, there are two what is extended internally to be set for ratchet
The locating notch entered, ratchet are plugged on corresponding in locating notch respectively, and outer end face is shaped to and tooth set inner surface
The dentalation that ratchet is meshed is set on the inner surface of reversing switch there are two control groove corresponding with ratchet, and control is recessed
The outboard end of slot and two panels ratchet cooperates, and as reversing switch is in the rotation of the rear outside of Ratchet body,
So that wherein a piece of in two panels ratchet is separated with ratchet.
As an improvement, the recessed translot being connected with two locating notches on the rear end face of the Ratchet body, in translot
Equipped with a ratchet spring, ratchet spring cross-brace makes ratchet have and is turned out always and tooth between two ratchets
The trend that the ratchet of set inner surface is meshed.
It improves again, the locating notch is mutually parallel the internal stretch to Ratchet body, and the bottom of locating notch is circular arc
The inner end of slot, ratchet is corresponding arc surface, and the inner end of ratchet can be arranged in arc groove to left-right rotation.
Improve again, the rear portion position corresponding with reversing switch of the Ratchet body be equipped with it is at least one radially
The blind hole of extension, spring and steel ball are equipped in blind hole successively from inside to outside, and spring makes steel ball has to protrude outward always to hold out against
The trend of reversing switch.
It improves again, three positioning grooves to match with steel ball is equipped at intervals on the inner surface of the reversing switch.
Further, the positioning groove is three of left, center, right setting, when steel ball is located at intermediate positioning groove, spine
Calvus is just ratcheting with ratchet, and ratchet bar does not rotate；When reversing switch rotates, steel ball is located at the positioning groove of left or right side
When, ratchet bar one-directionally rotates clockwise or counterclockwise respectively.
Finally, the rear portion of the ratchet bar is the interconnecting piece being connected with external driver bit, in the through hole of ratchet bar
Equipped with magnet, there is gap between magnet and the outer end of rivet.
Compared with prior art, the advantages of the utility model：A perforative Hexagon hole, spine are axially offered in ratchet bar
The rear portion of wheel body axially offers corresponding centre bore, and the two is fixed by rivet interlacement, is not only connected firmly in this way, but also
Also eliminate the structures such as original jacking block so that process and assemble and is more convenient.The utility model is not only simple in structure, and installs
It is convenient and easy to process, one-directional rotation of the ratchet bar relative to Ratchet body may be implemented, turned round when avoiding tightening screw
The phenomenon that, overall structure firm stable makes the service efficiency higher of the ratchet screwdriver, is more convenient for using.
Description of the drawings
Fig. 1 is the structural schematic diagram of the ratchet screwdriver of the utility model embodiment；
Fig. 2 is the sectional view of the line A-A along Fig. 1；
Fig. 3 is the sectional view of the line B-B along Fig. 1；
Fig. 4 is the sectional view of the line C-C along Fig. 1；
Fig. 5 is the exploded view of the ratchet screwdriver of the utility model embodiment；
Fig. 6 is the exploded view of another angle of the ratchet screwdriver of the utility model embodiment.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing embodiment.
As shown in figures 1 to 6, the ratchet screwdriver of the utility model embodiment, including Ratchet body 1, ratchet bar 2 and commutation
Switch 3, the rear portion of ratchet bar 2 are the interconnecting piece of the external driver bit of connection, and the front of ratchet bar 2 is that a tooth covers 21, tooth set 21
Ratchet 211 is laid on inner surface, the front of Ratchet body 1 connects extraneous handle or is directly available for users to use, spine
In the rear portion insertion tooth set 21 of wheel body 1, it is equipped with what the ratchet 211 that two cover with tooth on 21 inner surfaces coordinated in Ratchet body 1
Ratchet 6, reversing switch 3 are an annular collar, and reversing switch 3 is set in the rear portion front position of Ratchet body 1, reversing switch
3 rear end and the front end face of tooth set 21 offset, and pass through aperture is axially offered in ratchet bar 2, and through hole is that rear portion aperture is big, preceding
The small interior hexagonal stepped hole 22 in portion aperture, the rear portion of Ratchet body 1 axially offer corresponding centre bore 11, the hole of centre bore 11
Diameter is consistent with the front aperture of ratchet bar 2, and interior hexagonal ladder is passed through by rivet 4 in the rear portion insertion tooth set 21 of Ratchet body 1
Hole 22, centre bore 11 are by Ratchet body 1 and 2 riveting of ratchet bar, and the gap of rivet 4 is 0.1mm or so, and ratchet bar 2 is in riveting
It is rotary after 4 pressure of nail, the rear end of rivet 4 is hexagonal corresponding with the rear portion aperture of interior hexagonal stepped hole 22
Shape, the step surface of the rear end of rivet 4 and interior hexagonal stepped hole 22 offset fixation, the not only structure by the way of the connection of rivet 4
Simply, easy to assembly, also so that ratchet bar 2 and 1 stable connection of Ratchet body are reliable, occur turning round when avoiding tightening screw shows
As being equipped with a magnet 5 in the interior hexagonal stepped hole 22 of ratchet bar 2, magnet 5 is convenient for the connection with external driver bit, magnetic
There is gap between iron 5 and the outer end of rivet 4, under the suction of magnet 5, ratchet bar 2 is made to abut Ratchet body 1, fortune
Row is more steady；
It is scarce that the outer surface side at the rear portion of Ratchet body 1 opens up that there are two positioning be placed in for ratchet 6 that extend internally
Mouth 12, ratchet 6 is plugged on respectively in corresponding locating notch 12, and outer end face is shaped to cover the ratchet of 21 inner surfaces with tooth
211 dentalations 61 being meshed, locating notch 12 are mutually parallel the internal stretch to Ratchet body 1, the bottom of locating notch 12
Portion is arc groove, and the inner end of ratchet 6 is corresponding arc surface, and the inner end of ratchet 6 can be arranged in arc groove to left-right rotation
It is interior, it is set on the inner surface of reversing switch 3 there are two control groove 31 corresponding with ratchet 6, controls groove 31 and two panels pawl
The outboard end of piece 6 cooperates, and as reversing switch 3 is in the rotation of the rear outside of Ratchet body 1 so that two panels spine
Wherein a piece of and ratchet 211 in calvus 6 is separated；It is recessed on the rear end face of Ratchet body 1 to be connected with two locating notches 12
Logical translot 13, translot 13 is interior to be equipped with a ratchet spring 7, and 7 cross-brace of ratchet spring makes pawl between two ratchets 6
Piece 6, which has to be turned out always, covers the trend that the ratchet 211 of 21 inner surfaces is meshed with tooth；The rear portion of Ratchet body 1 and commutation
3 corresponding position of switch is equipped at least one blind hole 14 radially extended, is equipped with successively from inside to outside in blind hole 14
Spring 9 and steel ball 8, spring 9 protrude outward the trend for holding out against reversing switch 3 always so that steel ball 8 has, reversing switch 3 it is interior
Three positioning grooves to match with steel ball 8 32 are equipped at intervals on surface, positioning groove 32 is three of left, center, right setting, is made
Reversing switch 3 relative to Ratchet body 1 rotate so that control ratchet 6 outboard end it is mobile when gear definitely,
Easily controllable, when steel ball 8 is located at interfix groove 32, ratchet 6 is just ratcheting with ratchet 211, and ratchet bar 2 does not rotate；
When reversing switch 3 rotates, when steel ball 8 is located at the positioning groove 32 of left or right side, ratchet bar 2 is made clockwise or counterclockwise respectively
One-directional rotation.
Assemble flow is such：
1, it is put into spring 9 and steel ball 8 in the blind hole 14 of Ratchet body 1, reversing switch 3 is shifted onto bottom；
2, two ratchets 6 are put in the locating notch 12 of Ratchet body 1, and ratchet spring 7 is put into intermediate translot 13；
7 both ends of ratchet spring push ratchet 6 to turn outward respectively against two ratchets 6；
3, the teeth portion edge of the tooth of ratchet bar 2 set 21 is put the oil fat, tooth set 21 is sleeved on Ratchet body 1, and rivet 4 is from ratchet
The Hexagon hole stepped hole 22 of bar 2 is passed through to the centre bore 11 of Ratchet body 1, is finally riveted, gap 0.1mm or so；
4, in centre position (when i.e. steel ball 8 is located at interfix groove 32), ratchet bar 2 cannot rotate reversing switch 3, change
To switch 2 on earth (when i.e. steel ball 8 is located at left side positioning groove 32), ratchet bar 2 rotates counterclockwise, reversing switch 3 clockwise
To on earth (when i.e. steel ball 8 is located at right positioner groove 32), ratchet bar 2 rotates clockwise counterclockwise；
5, the 22 bottom rivet magnet 5 of Hexagon hole of ratchet bar 2.
Although the preferred embodiments of the utility model have been described above in detail, it is to be clearly understood that for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (9)
1. the front of a kind of ratchet screwdriver, including Ratchet body, ratchet bar and reversing switch, ratchet bar is a tooth set, ratchet
In the rear portion insertion tooth set of main body, the ratchet of two and the ratchet cooperation on tooth set inner surface, commutation are equipped in Ratchet body
Switch is an annular collar, and reversing switch is set in the rear portion front position of Ratchet body, rear end and the tooth set of reversing switch
Front end face offsets, it is characterised in that：Pass through aperture is axially offered in the ratchet bar, the rear portion of Ratchet body axially offers
Corresponding centre bore, the rear portion of Ratchet body pass through through hole, centre bore by ratchet master with after tooth set connection positioning by rivet
Body and ratchet bar riveting, what ratchet bar can rotate after staking.
2. ratchet screwdriver according to claim 1, it is characterised in that：The through hole big, front hole for rear portion aperture
The small interior hexagonal stepped hole of diameter, the aperture of the centre bore of Ratchet body is consistent with the front aperture of ratchet bar, the rear end of rivet
For hexagon corresponding with the interior rear portion aperture of hexagonal stepped hole, rivet is plugged in interior hexagonal stepped hole, centre bore, rivet
The step surface of rear end and interior hexagonal stepped hole offset fixation.
3. ratchet screwdriver according to claim 1 or 2, it is characterised in that：The outer surface at the rear portion of the Ratchet body
Side is opened up there are two the locating notch being placed in for ratchet to extend internally, and ratchet is plugged on corresponding locating notch respectively
In, outer end face is shaped to cover the dentalation that the ratchet of inner surface is meshed with tooth, and the inner surface of reversing switch is equipped with two
A control groove corresponding with ratchet, control groove and the outboard end of two panels ratchet cooperate, and with commutation
Switch the rotation in the rear outside of Ratchet body so that wherein a piece of in two panels ratchet is separated with ratchet.
4. ratchet screwdriver according to claim 3, it is characterised in that：It is recessed with two on the rear end face of the Ratchet body
The translot that a locating notch is connected is equipped with a ratchet spring in translot, ratchet spring cross-brace between two ratchets,
Make ratchet that there is the trend for being turned out be meshed with the ratchet of tooth set inner surface always.
5. ratchet screwdriver according to claim 3, it is characterised in that：The locating notch is mutually parallel to Ratchet body
Internal stretch, the bottom of locating notch is arc groove, and the inner end of ratchet is corresponding arc surface, and the inner end of ratchet can be left
The right side is rotatably arranged in arc groove.
6. ratchet screwdriver according to claim 3, it is characterised in that：The rear portion of the Ratchet body and reversing switch phase
Corresponding position is equipped at least one blind hole radially extended, and spring and steel ball are equipped with successively from inside to outside in blind hole,
Spring makes steel ball has to protrude outward the trend for holding out against reversing switch always.
7. ratchet screwdriver according to claim 6, it is characterised in that：It is equipped at intervals on the inner surface of the reversing switch
Three positioning grooves to match with steel ball.
8. ratchet screwdriver according to claim 7, it is characterised in that：The positioning groove is the three of left, center, right setting
A, when steel ball is located at intermediate positioning groove, ratchet is just ratcheting with ratchet, and ratchet bar does not rotate；When reversing switch turns
Dynamic, when steel ball is located at the positioning groove of left or right side, ratchet bar one-directionally rotates clockwise or counterclockwise respectively.
9. ratchet screwdriver according to claim 3, it is characterised in that：The rear portion of the ratchet bar is and external screwdriver
The interconnecting piece that head is connected, the through hole of ratchet bar is interior to be equipped with magnet, has gap between magnet and the outer end of rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820072627.1U CN207771684U (en) | 2018-01-16 | 2018-01-16 | A kind of ratchet screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820072627.1U CN207771684U (en) | 2018-01-16 | 2018-01-16 | A kind of ratchet screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207771684U true CN207771684U (en) | 2018-08-28 |
Family
ID=63212969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820072627.1U Active CN207771684U (en) | 2018-01-16 | 2018-01-16 | A kind of ratchet screwdriver |
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| Country | Link |
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| CN (1) | CN207771684U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397194A (en) * | 2018-12-12 | 2019-03-01 | 绍兴环洲工具制造有限公司 | Hand-held tool commutation ratchet device |
| CN109877752A (en) * | 2019-04-15 | 2019-06-14 | 宁波泓谊塑胶科技有限公司 | A kind of internal-gear type ratchet screwdriver |
| CN111839868A (en) * | 2020-08-17 | 2020-10-30 | 江苏安惠医疗器械有限公司 | Light neck brace and application |
-
2018
- 2018-01-16 CN CN201820072627.1U patent/CN207771684U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109397194A (en) * | 2018-12-12 | 2019-03-01 | 绍兴环洲工具制造有限公司 | Hand-held tool commutation ratchet device |
| CN109877752A (en) * | 2019-04-15 | 2019-06-14 | 宁波泓谊塑胶科技有限公司 | A kind of internal-gear type ratchet screwdriver |
| CN111839868A (en) * | 2020-08-17 | 2020-10-30 | 江苏安惠医疗器械有限公司 | Light neck brace and application |
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