CN201318922Y - Measuring tape capable of self locking - Google Patents
Measuring tape capable of self locking Download PDFInfo
- Publication number
- CN201318922Y CN201318922Y CNU2008201705264U CN200820170526U CN201318922Y CN 201318922 Y CN201318922 Y CN 201318922Y CN U2008201705264 U CNU2008201705264 U CN U2008201705264U CN 200820170526 U CN200820170526 U CN 200820170526U CN 201318922 Y CN201318922 Y CN 201318922Y
- Authority
- CN
- China
- Prior art keywords
- chi
- tape
- brake block
- band
- tape measure
- 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
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Abstract
The utility model discloses a measuring tape capable of self locking, comprising a tape encloser (1) and a tape (3) arranged in the tape encloser (1) and wound on a tape core (2). A brake block (4) is pivoted in the tape encloser (1), close to an opening (11) of the tape encloser. The measuring tape is characterized in that the upper part of the brake block(4)is exposed out of the side wall of the tape encloser (1) to form a button part (41) and the lower part of the brake block is arranged to be a press part (42) which extends downward and can rest against the upper surface of the tape (3); and an elastic reset structure is arranged between the brake block (4) and the tape encloser (1) to enable the brake block to deflect so as to make the press part (42) have the tendency of compacting the tape (3) all the time. The press part at the lower part of the brake block of the measuring tape directly rests against the upper surface of the tape, instead of contacting with the upper surface of the tape through an additional stop block, so the tape can be positioned automatically, thus greatly simplifying the structure of the measuring tape and at the same time reliably realizing that the tape can be positioned automatically when the tape is drawn out.
Description
Technical field
The utility model relates to a kind of tape measure, relates in particular to a kind of tape measure of automatic locking scale band.
Background technology
Existing tape measure structure generally comprises the chi shell and is located in it and is wound on chi band on the chi core, and this chi band can bounce back under the restoring force effect of the torsion spring of chi in-core automatically.General this tape measure its also the chi shell be provided with the device that can make the chi band brake, to prevent that the chi band from bouncing back fast, the locking key that this general using is arranged on the chi shell outside makes the chi band brake and the lock-bit of pulling out by an arrestment mechanism, and will make chi take back volume, then discharges locking key.This tape measure is pulled out and locking key when not pressing as yet at the chi band, the restoring force of torsion spring will directly drive chi and take back and contract on the chi core, particularly the chi band is pulled out when longer, retraction force ten sides of chi band are powerful so that injure finger, and because retraction speed is very fast, the user also is difficult to be able to do in time cushion by pushing locking key.
As a patent No. is a kind of chi band tape measure of location automatically so the Chinese utility model patent " a kind of chi band automatically location tape measure " of ZL200420119196.8 (notification number is CN2767951Y) has disclosed, and includes the chi box and sets within it and be wound on chi band, scotch, the spring on the wheel hub and run through the button that the chi box is provided with; Wherein, scotch is articulated in the position of contiguous ruler box mouth in the chi box, and is positioned on the chi band; Spring also is located at the position of contiguous ruler box mouth in the chi box, and the head of scotch is kept towards the chi belt deflector until inconsistent with the chi band; The medial extremity and the scotch of button offset, and this button drives scotch and departs from the chi band when being pressed.This utility model has not only been realized the automatic location of chi band when pulling out reliably by form the scotch design of friction catch with the chi band under the spring action of pretension, effectively prevents the quick retraction of chi band and injures finger.
But aforementioned patent not only needs button for realizing this goal of the invention, cooperates the automatic location that just can finish the chi band when also needing scotch and spring, thus the structure relative complex, and also difficulty is also compared in assembling.
In sum, the existing tape measure that the chi band is located automatically also can be further improved.
Summary of the invention
Technical problem to be solved in the utility model is the tape measure that a kind of automatic locking scale band is provided at above-mentioned prior art present situation, and this tape measure has simple and reasonable and locatees firm advantage.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of tape measure of automatic locking scale band, include the chi shell and be located in it and be wound on chi band on the chi core, contiguous chi faucal position is articulated with a brake block in this chi shell, this brake block is positioned at chi band top, it is characterized in that: the sidewall that the chi shell is exposed on the top of described brake block forms button portion, the press section that the energy of downward extension directly cooperates with the conflict of chi band upper surface is formed at the bottom of brake block, and is provided with between brake block and chi shell and allows brake block deflection and make the press section compress the elastic reset structure of chi band trend all the time.
Above-mentioned elastic reset structure can be the support spring of the button subordinate side that is arranged at brake block, and support spring is positioned at the top of the pivot of brake block.And support spring can adopt structure setting: be provided with a spring base in the chi shell, described support spring is placed in this spring base.
Certainly, above-mentioned elastic reset structure can also be for being arranged at the torsion spring on the brake block pivot.
For between the press section that makes brake block and the chi band enough friction brake force being arranged, be plane contact between above-mentioned press section and the chi band upper surface.Can strengthen the locating effect between support press section and the chi band like this.
Further improve and be, also be provided with a friction block on the following inwall of above-mentioned chi shell, this friction block is positioned at the below of chi band and contacts with chi band lower surface, and friction block be positioned at the press section under.By the co-extruded chi band of friction block and press section, effectively that chi is with lock in the chi shell like this.
Compared with prior art, advantage of the present utility model is: the press section of brake block bottom is directly to conflict in chi band upper surface in this tape measure, rather than contact with chi band upper surface by other scotch, be that brake block in original tape measure is to act on scotch earlier, again by the conflict of scotch in the chi band, realization is to the automatic location of chi band, thus simplify the structure of tape measure greatly, and realized the automatic location of chi band when pulling out equally reliably.
Description of drawings
Fig. 1 is the structural representation (chi band positioning states) of the utility model embodiment;
Fig. 2 is the structural representation (the chi band is removed positioning states) of the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, 2, be a preferred embodiment of the present utility model.
A kind of tape measure of automatic locking scale band includes chi shell 1 and is located in it and is wound on chi band 3 on the chi core 2, and contiguous chi faucal 11 positions are articulated with a brake block 4 in this chi shell 1, and this brake block 4 is positioned at chi band 3 tops.
The both sides, middle part of this brake block 4 articulate by pivot 43 and chi shell 1, the sidewall that chi shell 1 is exposed on the top of brake block 4 forms button portion 41, the press section 42 that directly cooperates with the conflict of chi band 3 upper surfaces of downward extension is formed at the bottom of brake block 4, this press section 42 is roughly shaft-like, simultaneously, between brake block 4 and chi shell 1, be provided with and allow brake block 4 deflections and make press section 42 compress the elastic reset structure of chi band 3 trend all the time.
Elastic reset structure in the present embodiment is the support spring 5 that is arranged at button portion 41 belows of brake block 4, and support spring 5 is positioned at the top of the pivot 43 of brake block 4, be provided with a spring base 6 in the chi shell 1, support spring 5 is placed in this spring base 6, an end that is support spring 5 is resisted against in the spring base 6, the upper end of support spring 5 is resisted against the lower surface of button portion 41, this support spring 5 applies obliquely elastic force just for the button portion 41 of brake block 4 like this, guarantees that brake block 4 has the trend around pivot 43 counter clockwise direction rotation as shown in Figure 1, 2.
Certainly, the elastic reset structure also can be the torsion spring that is arranged on the brake block pivot.
Between press section 42 and chi band 3 upper surfaces is plane contact.
Also be provided with a friction block 7 on the following inwall of chi shell 1, this friction block 7 is positioned at the below of chi band 3 and in chi band 3 lower surfaces contacts, and friction block 7 be positioned at press section 42 under, promptly under normal conditions the bottom surface of friction block 7 and press section 42 over against.
Principle of work of the present utility model and process are as follows:
When chi band 3 was extracted out, under the drive forward of chi band 3, the press section 42 of brake block can be to the rotation of previous crops distance element, and chi band 3 also can be extracted out smoothly.
After chi band 3 is extracted out, because the effect of support spring 5, make brake block 4 remain the trend that rotates counterclockwise, be brake block 4 42 bottom surfaces, press section all the time with chi band 3 upper surface rubbing contact, simultaneously friction block 7 also with chi band 3 lower surface rubbing contact, guarantee that chi band 3 is locked in the chi shell 1 under press section 42 and friction block 7 co-extruded effects.
When the needs chi is taken back when contracting, only need the button portion 41 of pushing brake block 4 with thumb, brake block 4 overcomes the elastic force of support spring 5, drive brake block 4 around pivot 43 clockwise deflections, slightly upwards mention 42 bottom surfaces, press section of brake block like this, thereby the upper surface that departs from chi band 3, chi band 3 bounces back under the effect of torsion spring on the chi core 2 automatically, and after the power disappearance that acts in the button portion 41, same, the support spring 5 of button portion 42 belows can make brake block 4 automatic deflections reset again, and then makes 42 bottom surfaces, press section of brake block prop up chi band 3 again, and another prevents chi band 3 retractions.
Claims (6)
1, a kind of tape measure of automatic locking scale band, include chi shell (1) and be located in it and be wound on chi band (3) on the chi core (2), contiguous chi faucal (11) position is articulated with a brake block (4) in this chi shell (1), this brake block (4) is positioned at chi band (3) top, it is characterized in that: the sidewall that chi shell (1) is exposed on the top of described brake block (4) forms button portion (41), the press section (42) that the energy of downward extension directly cooperates with the conflict of chi band (3) upper surface is formed at the bottom of brake block (4), and is provided with between brake block (4) and chi shell (1) and allows brake block (4) deflection and make press section (42) compress the elastic reset structure of chi band (3) trend all the time.
2, the tape measure of automatic locking scale band according to claim 1, it is characterized in that: described elastic reset structure is the support spring (5) below the button portion (41) that is arranged at brake block (4), and support spring (5) is positioned at the top of the pivot (43) of brake block (4).
3, the tape measure of automatic locking scale band according to claim 2 is characterized in that: be provided with a spring base (6) in the described chi shell (1), described support spring (5) is placed in this spring base (6).
4, the tape measure of automatic locking scale band according to claim 1 is characterized in that: described elastic reset structure is the torsion spring that is arranged on the brake block pivot.
5, the tape measure of automatic locking scale band according to claim 1 is characterized in that: be plane contact between described press section (42) and chi band (3) upper surface.
6, according to the tape measure of the described automatic locking scale of arbitrary claims band in the claim 1～5, it is characterized in that: also be provided with a friction block (7) on the following inwall of described chi shell (1), this friction block (7) is positioned at the below of chi band (3) and contacts with chi band (3) lower surface, and friction block (7) be positioned at press section (42) under.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201705264U CN201318922Y (en) | 2008-12-19 | 2008-12-19 | Measuring tape capable of self locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201705264U CN201318922Y (en) | 2008-12-19 | 2008-12-19 | Measuring tape capable of self locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318922Y true CN201318922Y (en) | 2009-09-30 |
Family
ID=41197686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201705264U Expired - Lifetime CN201318922Y (en) | 2008-12-19 | 2008-12-19 | Measuring tape capable of self locking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318922Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063097A (en) * | 2011-10-20 | 2013-04-24 | 上海田岛工具有限公司 | Manufacture method of tape claw |
| CN110566615A (en) * | 2019-09-10 | 2019-12-13 | 宁波帅特龙集团有限公司 | energy storage self-locking device of rotary damper |
| CN111834844A (en) * | 2019-04-16 | 2020-10-27 | 深圳市承越创展科技有限公司 | Flexible data line |
| CN113057563A (en) * | 2021-03-23 | 2021-07-02 | 温州医科大学附属第一医院 | Automatic control device for endoscope operation instrument |
| CN115191633A (en) * | 2022-07-16 | 2022-10-18 | 红云红河烟草(集团)有限责任公司 | Tobacco airing rack |
-
2008
- 2008-12-19 CN CNU2008201705264U patent/CN201318922Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063097A (en) * | 2011-10-20 | 2013-04-24 | 上海田岛工具有限公司 | Manufacture method of tape claw |
| CN111834844A (en) * | 2019-04-16 | 2020-10-27 | 深圳市承越创展科技有限公司 | Flexible data line |
| CN110566615A (en) * | 2019-09-10 | 2019-12-13 | 宁波帅特龙集团有限公司 | energy storage self-locking device of rotary damper |
| CN113057563A (en) * | 2021-03-23 | 2021-07-02 | 温州医科大学附属第一医院 | Automatic control device for endoscope operation instrument |
| CN115191633A (en) * | 2022-07-16 | 2022-10-18 | 红云红河烟草(集团)有限责任公司 | Tobacco airing rack |
| CN115191633B (en) * | 2022-07-16 | 2023-07-25 | 红云红河烟草(集团)有限责任公司 | Tobacco airing rack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090930 |
|
| CX01 | Expiry of patent term |