CN202900936U - Lock body connecting bolt - Google Patents
Lock body connecting bolt Download PDFInfo
- Publication number
- CN202900936U CN202900936U CN 201220638338 CN201220638338U CN202900936U CN 202900936 U CN202900936 U CN 202900936U CN 201220638338 CN201220638338 CN 201220638338 CN 201220638338 U CN201220638338 U CN 201220638338U CN 202900936 U CN202900936 U CN 202900936U
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- CN
- China
- Prior art keywords
- lock body
- screw
- diameter
- lock
- connecting bolt
- 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 relates to a lock body connecting bolt, comprising a screw head and a screw stud, wherein the screw stud is connected with the screw head. The lock body connecting bolt is characterized in that the screw head comprises a screw cap part, a positioning step and a guiding step which are arranged from the outer end of the screw head to the direction of the screw stud; the diameter of the positioning step is larger than the maximum diameter on the screw cap part; the working surface of the guiding step is a guiding surface; the diameter of the upper end of the guiding surface is same as that of the positioning step; and the diameter of the lower end of the guiding surface is same as the screw stud. The lock body connecting bolt has the beneficial effects that the screw cap structure is improved, the thickness of the screw cap convex out of a lock case or a cover plate of a lock body is reduced, higher requirement for the overall dimension of a lock set is met, the processing of sunk holes of the lock case or the cover plate of the lock body is avoided, the processing cost is reduced and the processing efficiency is improved; and the positioning step and the guiding step are sunk into the lock case or the cover plate of the lock body and are used for calibrating connecting holes of the lock case and the cover plate of the lock body so as to avoid dislocation and improve the connecting accuracy.
Description
Technical field
The utility model relates to a kind of lock body connecting bolt.
Background technique
The lockset overall dimension there is higher requirement, in the assembly process, has many places (at least 9～18 place) to make between lock housing and the lock cover and be screwed.If when using traditional sunk screw fixedly, need to process counterbore in lock housing or lock cover, counterbore adds that trade union increases cost and efficient is not high.If use traditional pan-headed screw, the nut on the pan-headed screw is protruding in lock housing or the lock cover outside, and nut has larger thickness, makes the lockset size not reach requirement.
Summary of the invention
The purpose of this utility model is to solve the problems referred to above of prior art existence and a kind of lock body connecting bolt is provided, improve nut structure, it is protruding in the thickness in lock housing or the lock cover outside to reduce nut, satisfy the lockset overall dimension higher requirement is arranged, and avoid lock housing or lock cover processing counterbore, cut down finished cost and improve work efficiency.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: the lock body connecting bolt, comprise the spiral shell head, be connected to the double-screw bolt on the spiral shell head, it is characterized in that described spiral shell head comprises nut section, positioning step and the guiding step of arranging from spiral shell head outer end to the double-screw bolt direction successively, the diameter of described positioning step is less than maximum diameter in the nut section, the working surface of described guiding step is guide surface, described guide surface upper end diameter is identical with the diameter of described positioning step, and described guide surface lower end diameter is identical with the diameter of described double-screw bolt.Improve nut structure, reducing nut, protruding satisfying the lockset overall dimension has higher requirement in the thickness in lock housing or the lock cover outside, and avoids lock housing or lock cover processing counterbore, cuts down finished cost and improves work efficiency.During use, positioning step and guiding step sink in lock housing or the lock cover, and are used for the attachment hole between calibration lock housing and the lock cover, avoid dislocation, improve to connect accuracy.
As the further of technique scheme improved and replenish, the utility model adopts following technical measures: for convenient processing, described guide surface is round table surface.
In order to reduce lockset surface acute angle, the exterior edge face of described nut section is arc surface.Being provided with of arc surface is beneficial to the raising comfort, avoids cutting hand or destroys the doorframe integrity.
The beneficial effect that the utlity model has: 1, improve nut structure, it is protruding in the thickness in lock housing or the lock cover outside to reduce nut, satisfying the lockset overall dimension has higher requirement, and avoids lock housing or lock cover processing counterbore, cuts down finished cost and improves work efficiency.2, positioning step and guiding step sink in lock housing or the lock cover, and are used for the attachment hole between calibration lock housing and the lock cover, avoid dislocation, improve to connect accuracy.3, the structure of the structure of guide surface and nut section exterior edge face makes things convenient for batch process on the one hand, avoids on the other hand cutting hand or destroys the doorframe integrity.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
A kind of structural representation that Fig. 2 is compared with the prior art when being the utility model use.
Fig. 3 is a kind of structural representation that the utility model uses state.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the lock body connecting bolt, as shown in Figure 1, it comprises spiral shell head 1, is connected to the double-screw bolt 2 on the spiral shell head.The spiral shell head comprises nut section 11, positioning step 12 and the guiding step 13 of arranging from spiral shell head outer end to the double-screw bolt direction successively.The working surface of guiding step 13 is guide surface 131.
As preferably, guide surface 131 is round table surface; The exterior edge face of nut section 11 is arc surface.
As preferably, the diameter of positioning step 12 is less than maximum diameter in the nut section 11, and guide surface 131 upper end diameter are identical with the diameter of described positioning step 12.Guide surface 131 lower end diameter are identical with the diameter of described double-screw bolt 2.
As shown in Figure 2, the structural representation that the sunk screw 20 that relates in the lock body connecting bolt 10 that relates to of present patent application and the prior art and pan-headed screw 30 compare.Can find out intuitively that from Fig. 2 the nut projection on the pan-headed screw 30 is the thickest, affects the lockset overall dimension; And sunk screw 20 is suitable with lock body connecting bolt 10 projections that present patent application relates to, and still, the use of sunk screw 20 need cooperate counterbore, causes the raising of processing cost.
As shown in Figure 3, on the lock housing 3 on the lockset fixing pin 5 is set, attachment hole on the cover plate 4 on the lockset is aimed at the attachment hole on the fixing pin 5, and the lock body connecting bolt 10 that present patent application relates to connects cover plate 4 and fixing pin 5, and then cover plate 4 and lock housing 3 are linked together.Nut section 11 is protruding in cover plate 4 outsides, and positioning step 12 and guiding step 13 are arranged in the attachment hole on the cover plate 4, and guiding step 13 makes the attachment hole on the cover plate 4 carry out the alignment correction effect with the attachment hole on the fixing pin 5, avoids misplacing.
The above is preferred embodiment of the present utility model only, is not limited to the utility model.In the above-described embodiments, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. lock body connecting bolt, comprise spiral shell head (1), be connected to the double-screw bolt (2) on the spiral shell head, it is characterized in that described spiral shell head comprises the nut section (11) of arranging from spiral shell head outer end to the double-screw bolt direction successively, positioning step (12) and guiding step (13), the diameter of described positioning step (12) is less than the upper maximum diameter of nut section (11), the working surface of described guiding step (13) is guide surface (131), described guide surface (131) upper end diameter is identical with the diameter of described positioning step (12), and described guide surface (131) lower end diameter is identical with the diameter of described double-screw bolt (2).
2. lock body connecting bolt according to claim 1 is characterized in that described guide surface (131) is round table surface.
3. lock body connecting bolt according to claim 1 and 2, the exterior edge face that it is characterized in that described nut section (11) is arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638338 CN202900936U (en) | 2012-11-27 | 2012-11-27 | Lock body connecting bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638338 CN202900936U (en) | 2012-11-27 | 2012-11-27 | Lock body connecting bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900936U true CN202900936U (en) | 2013-04-24 |
Family
ID=48121611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220638338 Expired - Lifetime CN202900936U (en) | 2012-11-27 | 2012-11-27 | Lock body connecting bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020232A (en) * | 2015-07-15 | 2015-11-04 | 温州市金久紧固件有限公司 | Method for closed shell to be connected with external part and bolt used by method |
| CN111017397A (en) * | 2019-12-19 | 2020-04-17 | 襄阳宏航实业有限责任公司 | Ejection seat HTY-6 type packing box and preparation method thereof |
-
2012
- 2012-11-27 CN CN 201220638338 patent/CN202900936U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020232A (en) * | 2015-07-15 | 2015-11-04 | 温州市金久紧固件有限公司 | Method for closed shell to be connected with external part and bolt used by method |
| CN105020232B (en) * | 2015-07-15 | 2019-02-12 | 温州市金久紧固件有限公司 | Method for connecting external parts by closed shell and bolt used by method |
| CN111017397A (en) * | 2019-12-19 | 2020-04-17 | 襄阳宏航实业有限责任公司 | Ejection seat HTY-6 type packing box and preparation method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |