CN104440782A - Screwdriver - Google Patents
Screwdriver Download PDFInfo
- Publication number
- CN104440782A CN104440782A CN201410672187.XA CN201410672187A CN104440782A CN 104440782 A CN104440782 A CN 104440782A CN 201410672187 A CN201410672187 A CN 201410672187A CN 104440782 A CN104440782 A CN 104440782A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- resilient sleeve
- screw
- elastic sleeve
- ring set
- 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.)
- Pending
Links
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
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention discloses a screwdriver in home electric appliances, and the screwdriver is particularly suitable for countersink screws. The screwdriver comprises a connecting rod, wherein a boss or groove connected with the head of a screw in an inserting mode is arranged at the bottom end of the connecting rod, the connecting rod is provided with an elastic sleeve, the upper end opening of the elastic sleeve is positioned on the connecting rod through a loop, the lower end opening of the elastic sleeve is arranged below the bottom end of the connecting rod, the vertical distance between the lower end opening of the elastic sleeve and the bottom end of the connecting rod is larger than the height value of the head of the screw, the aperture of the lower end opening of the elastic sleeve is smaller than the diameter of the head of the screw, an annular edgefold bent circularly outwards is machined on the part, below the lower end opening of the elastic sleeve, of the elastic sleeve, and an annular carrying groove bent circularly outwards is machined in the part, above the lower end opening of the elastic sleeve, of the elastic sleeve. The screwdriver overcomes the defect that a screw is prone to falling off after being taken out in the prior art, and limits the detached screw in the elastic sleeve, and the screw is easy to take and put.
Description
Technical field
The present invention relates to the provision for disengagement of screw in home appliance, be specially adapted to the stripping attachment of counterbore screw.
Background technology
In maintenance household electrical appliance process, need to dismantle the screw on casing, general screwdriver or the electric drill of adopting is dismantled.
Screw of a great variety, extracting tool also a lot of sample of its correspondence.Such as soket head cap screw, is mainly used in fastening, and dismounting man motor casing, has advantages such as being not easy sliding angle.Its conventional efficient extracting tool is the mode adopting electric drill to coordinate external hexagonal sleeve (in embedding in hexagonal), is disassembled by soket head cap screw.
The manufacturing cost of outer-hexagonal bolts is lower than interior hexagonal many, and its advantage also has spiral shell head (spanner forced position) thinner than interior hexagonal, and the not interior hexagonal of some places can replace.Cost is low in addition, and dynamic strength is little, much fewer than outer-hexagonal of the soket head cap screw that the low machinery of required precision adopts.The general dismounting adopting the sleeve (being driven by electric drill) of profile in band hexagonal to realize outer-hexagonal bolts.
In-line and cross screw, be modal screw, dismantle mainly through screwdriver.
When being applied to counterbore place, all there is following common defect in above-mentioned each screw:
The head Matching installation of electric drill or screwdriver and screw is all needed in unloading process, and electric drill or screwdriver are aimed at screw concentric, then rotate electric drill or screwdriver, screw is unscrewed, screw is separated with the counterbore on home electric appliance housing, then manually takes out screw; Electric drill or the installation between screwdriver and screw are not fixed installation, but be plugged in together by morpheme coupling, although stable synchronous rotary can be realized, but after screw unscrews, when electric drill or screwdriver stop the rotation, screw probably splits away off from electric drill or screwdriver, again fall into screw or drop to other positions, if fall into screw, screw is deducted from counterbore comparatively time-consuming with finger, if drop to other positions not easy-to-search again.
As can be seen here, although existing screw disassembling tool can efficiently loosen counterbore screw, be not easy to screw to pick and place in specific container utensil.
Summary of the invention
The invention is intended to provide a kind of device for dismounting screw being convenient to pick and place counterbore screw.
Device for dismounting screw, comprise handle or electric drill, also comprise the connecting rod with handle or electric drill output shaft fixed connection, described connecting rod bottom is provided with and the projection of screw head grafting or groove, described connecting rod is provided with resilient sleeve, the upper port of resilient sleeve is positioned on connecting rod by a ring set, resilient sleeve lower port is located at the below of described connecting rod bottom, the vertical range of described resilient sleeve lower port and connecting rod bottom is greater than the height value of screw head, the bore of resilient sleeve lower port is less than the diameter of described screw head, resilient sleeve on the downside of resilient sleeve lower port is processed with outwards leads round circular fold, resilient sleeve on the upside of resilient sleeve lower port is processed with inwardly leads round annular bracket.
Adopt device for dismounting screw of the present invention, there is following technique effect:
When 1, using, connecting rod bottom is needed to put into counterbore in the lump together with resilient sleeve, the circular fold of resilient sleeve preferentially can touch the base on screw and heavy limit, because circular fold outwards leads circle, such circular fold can expand outwardly distortion, makes screw head enter resilient sleeve inside and be plugged in together with connecting rod bottom; By handle or electric drill pivot link, the screw rod driven is separated with the counterbore on home electric appliance housing, now screw head rotates the annular bracket entering and arrive on the upside of resilient sleeve lower port; Whole connecting rod lifting, circular fold resets simultaneously, and resilient sleeve lower port diminishes, and whole screw head is held up by annular bracket, and screw head can not drop easily;
2, while taking out connecting rod, screw head is defined in resilient sleeve, and the threaded rod of screw is also outside resilient sleeve, and such workman only needs threaded rod to catch just screw to be taken out, and compared with prior art, it is quite convenient to pick and place;
3, described annular bracket and circular fold lead round structure with resilient sleeve lower port for demarcating to both direction, both are all process on resilient sleeve relevant position, directly utilize the material of resilient sleeve itself, do not need other add-on assembles and corresponding connector, global reliability is stronger and save material.
Further, described ring set is slidably socketed on connecting rod, connecting rod is installed with to block, and described supporting is connected with back-moving spring between block and ring set, and the below of described ring set is provided with descending limited block.
In unloading process, resilient sleeve can go up movement, and ring set is upwards synchronized with the movement, under action of reset spring, the acting in conjunction on circular fold back-moving spring and counterbore base and expanding outwardly, after having dismantled, circular fold self-resetting, ring set automatically resets under the effect of back-moving spring.In reseting procedure, if ring set downward storke exceedes initial position, resilient sleeve lower port is made to be deep into the screw rod lower end of screw, so likely whole screw all " can be swallowed " in resilient sleeve, screw will take out by that workman with wasting time and energy from resilient sleeve, so arrange limited block, prevent the descending long distance of ring set.
Further, described resilient sleeve offers the uniform open slot of circumference.
Arranging open slot is on the one hand deformability in order to improve resilient sleeve, being for enabling workman see the position of connecting rod lower end through open slot on the other hand, being convenient to aim at screw head.
Further, described ring set is fixed on connecting rod.
Simplify distortion as one, directly ring set can be fixed on connecting rod, and limit without spring and limited block, and the circular fold meeting directly dilatating and deformable by ring set effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of device for dismounting screw embodiment one of the present invention.
Fig. 2 is the structural representation of device for dismounting screw embodiment two of the present invention.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: connecting rod 1, to block 2, Compress Spring 3, ring set 4, resilient sleeve 5, annular bracket 6, circular fold 7, limited block 8.
Embodiment one
The present embodiment is substantially as shown in Figure 1: device for dismounting screw of the present invention, comprises connecting rod 1, and connecting rod 1 is provided with resilient sleeve 5.
Resilient sleeve 5 adopts beryllium-bronze to make, and the elastoplast such as PVC can certainly be adopted to make.
The upper port of resilient sleeve 5 is positioned on connecting rod 1 by a ring set 4, resilient sleeve 5 lower port is located at the below of described connecting rod 1 bottom, height value for screw head is the screw of 1.2cm, the vertical range of resilient sleeve 5 lower port and connecting rod 1 bottom should be set as 1.5cm, be the screw of 2.5cm for described screw head diameter, the bore of resilient sleeve 5 lower port should be set as 2cm.
As shown in Figure 1, the resilient sleeve 5 on the downside of resilient sleeve 5 lower port is outwards led and round is processed into circular fold 7, and the resilient sleeve 5 on the upside of resilient sleeve 5 lower port is inwardly led circle and is processed into annular bracket 6.
Device for dismounting screw of the present invention, also comprises the handle or electric drill that are connected with connecting rod 1, and described connecting rod 1 bottom is provided with and the projection of screw head grafting or groove.
Described ring set 4 is slidably socketed on connecting rod 1, and connecting rod 1 top is installed with to block 2, and described supporting is connected with Compress Spring 3 between block 2 and ring set 4, and the below of described ring set 4 is provided with the limited block 8 be fixed on connecting rod 1.
Embodiment two
The present embodiment is substantially as shown in Figure 2: described in being with the difference of embodiment one, the present embodiment is arranged for simplifying, eliminate limited block 8, to components such as block 2 and Compress Springs 3, resilient sleeve 5 and ring set 4 that the present invention limits only are set on connecting rod 1, its middle ring sleeve 4 is fixed on connecting rod 1, can make resilient sleeve 5 stable position like this on connecting rod 1.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (4)
1. device for dismounting screw, comprise handle or electric drill, also comprise the connecting rod with handle or electric drill output shaft fixed connection, described connecting rod bottom is provided with and the projection of screw head grafting or groove, it is characterized in that, described connecting rod is provided with resilient sleeve, the upper port of resilient sleeve is positioned on connecting rod by a ring set, resilient sleeve lower port is located at the below of described connecting rod bottom, the vertical range of described resilient sleeve lower port and connecting rod bottom is greater than the height value of screw head, the bore of resilient sleeve lower port is less than the diameter of described screw head, resilient sleeve on the downside of resilient sleeve lower port is processed with outwards leads round circular fold, resilient sleeve on the upside of resilient sleeve lower port is processed with inwardly leads round annular bracket.
2. device for dismounting screw according to claim 1, is characterized in that: described ring set is slidably socketed on connecting rod, connecting rod is installed with to block, and described supporting is connected with back-moving spring between block and ring set, and the below of described ring set is provided with descending limited block.
3. device for dismounting screw according to claim 1 and 2, is characterized in that: described resilient sleeve offers the uniform open slot of circumference.
4. device for dismounting screw according to claim 1, is characterized in that: described ring set is fixed on connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672187.XA CN104440782A (en) | 2014-11-22 | 2014-11-22 | Screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410672187.XA CN104440782A (en) | 2014-11-22 | 2014-11-22 | Screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104440782A true CN104440782A (en) | 2015-03-25 |
Family
ID=52887935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410672187.XA Pending CN104440782A (en) | 2014-11-22 | 2014-11-22 | Screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104440782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900505A (en) * | 2019-10-27 | 2020-03-24 | 北京点域科技有限公司 | Dismounting device for printing machine |
-
2014
- 2014-11-22 CN CN201410672187.XA patent/CN104440782A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110900505A (en) * | 2019-10-27 | 2020-03-24 | 北京点域科技有限公司 | Dismounting device for printing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |