CN204458729U - A kind of have the bolt preventing extension stem from skidding off function - Google Patents
A kind of have the bolt preventing extension stem from skidding off function Download PDFInfo
- Publication number
- CN204458729U CN204458729U CN201520092238.1U CN201520092238U CN204458729U CN 204458729 U CN204458729 U CN 204458729U CN 201520092238 U CN201520092238 U CN 201520092238U CN 204458729 U CN204458729 U CN 204458729U
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- CN
- China
- Prior art keywords
- extension stem
- penetration hole
- skidding
- clamping stagnation
- function
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Abstract
The utility model discloses screw, aim to provide and a kind of there is the bolt preventing extension stem from skidding off function, its drip irrigation device is: comprise screw body, nut, described nut is provided with penetration hole, extension stem is provided with in described penetration hole, described screw body is provided with the rotating disc with fan-shaped boss, the side away from rotating disc of described fan-shaped boss is provided with the plane of inclination of conflicting with extension stem end face, the true dip direction of described plane of inclination is that the straight flange of fan-shaped boss the same side tilts to the straight flange of opposite side, the clamping stagnation portion for increasing clamping stagnation power between extension stem and penetration hole hole wall is provided with in described penetration hole.
Description
Technical field
The utility model relates to a kind of screw, has in particular to a kind of the bolt preventing extension stem from skidding off function.
Background technique
Screw is widely used in the middle of real life and production, its effect is self-evident, but the nut of existing screw is equipped with cross recess or a word groove, in the middle of the practical process of reality, tightening screw can coordinate screw-driver to use together usually, different operator use the power used during screw-driver different, and for same screw, the pressure maximum that the power that operator use can bear once the sidewall exceeding its groove, just there will be the situation of twisting flower, because the degree of depth of the cross recess on existing screw nut or a word groove is all fixing dead, after spending once stubborn, screw-driver or other instruments all cannot insert in groove, screw just cannot continue to be screwed into or to back-out, operator generally can adopt hacksaw to saw out groove faced with this situation on nut, then extend in groove with sheet instrument and just can turn screw, this process extremely bothers, but also will several instruments how for subsequent use, bring greatly inconvenience to production and life.
At present, on market (application number be 201420436208.3 Chinese patent disclose a kind of screw), comprise screw body, nut, described nut comprises the first nut, second nut, one end of described first nut is fixedly connected with screw body, first nut is provided with rotating disc away from one end of screw body, drive plate, described rotating disc is disk, described rotating disc is arranged with the first nut is concentric, rotating disc is articulated with the first nut one end away from screw body, articulating point is positioned at the central position of rotating disc, described rotating disc is provided with the fan-shaped boss of more than 2 or 2 away from the side of the first nut, described fan-shaped boss uniform circular is distributed in the side of rotating disc away from the first nut, the side away from rotating disc of described fan-shaped boss is provided with plane of inclination, the true dip direction of described plane of inclination is that the straight flange of fan-shaped boss the same side tilts to the straight flange of opposite side, the circumferential side wall of described rotating disc is provided with the flank of tooth, described drive plate is circular fluted disc, drive plate is articulated with the first nut one end away from screw body, the flank of tooth of described drive plate circumferential surface and the flank of tooth of rotating disc suitable, the cavity that can hold rotating disc and drive plate is provided with in described second nut, the opening of described cavity is relative with the first nut, the circumferential side wall of described second nut is provided with and runs through groove, described run through groove size and drive plate suitable, the side of the opening of described second nut is fixedly connected with the side of the first nut away from screw body, described second nut is provided with cross recess away from the side of the first nut, penetration hole, extension stem, described extension stem is all consistent with the quantity of fan-shaped boss with the quantity of penetration hole, described extension stem and penetration hole suitable, described penetration hole is corresponding with fan-shaped boss to be arranged, one end and the plane of inclination of extension stem are inconsistent, although said structure can solve after original cross recess or a word groove twisted and spend, the problem that screw still can be back-outed smoothly or be screwed into, but this structure also exists very large defect, namely because not arranging position-limit mechanism between extension stem and penetration hole, thus cause extension stem easily to skid off in penetration hole, affect normal using process.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is that providing a kind of has the bolt preventing extension stem from skidding off function.
For achieving the above object, the utility model provides following technological scheme: a kind of have the bolt preventing extension stem from skidding off function, comprise screw body, nut, described nut is provided with penetration hole, extension stem is provided with in described penetration hole, described screw body is provided with the rotating disc with fan-shaped boss, the side away from rotating disc of described fan-shaped boss is provided with the plane of inclination of conflicting with extension stem end face, the true dip direction of described plane of inclination is that the straight flange of fan-shaped boss the same side tilts to the straight flange of opposite side, the clamping stagnation portion for increasing clamping stagnation power between extension stem and penetration hole hole wall is provided with in described penetration hole.
Preferably, the hole wall of described penetration hole is provided with standing groove, described clamping stagnation portion comprises supporting member, and described supporting member is positioned at standing groove and can be inconsistent with extension stem surface, is also provided with for promoting supporting member and the surperficial elastic member pushed against of extension stem in described standing groove.
Preferably, described supporting member is provided with support end, the sidewall of described extension stem is established the embedded groove embedded for support end with several.
Preferably, described support end is protruding disc shape, the annular groove of described embedded groove to be cross section be circular arc.
Preferably, described clamping stagnation portion is the seal ring being positioned at penetration hole.
Compared with prior art, the beneficial effects of the utility model are: when not needing to use the plane of inclination on fan-shaped boss that nut surface is extremely given prominence on top on extension stem, be arranged on the clamping stagnation portion in penetration hole, the effect of clamping stagnation extension stem will be played, even if user is whole screw upset or rock, whole extension stem still can be trapped in penetration hole, can not skid off penetration hole because of the effect of external force, avoids extension stem surprisingly skid off penetration hole and lose, in addition on the one hand, when needs use extension stem, the rotatable whole rotating disc of user, make extension stem by the plane of inclination on fan-shaped boss extremely outstanding for top on extension stem nut surface, although and have the existence in clamping stagnation portion in this process, but the effect increasing clamping stagnation power between extension stem and penetration hole hole wall is only played in clamping stagnation portion, instead of restriction extension stem skids off from penetration hole completely, so whole extension stem still can successfully eject, and when pushing up ideal position, the clamping stagnation portion moment all plays the effect of clamping stagnation, user is when using crow bar rotary screw, extension stem also can not slide down along penetration hole, use more smooth and easy, convenient.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme of the utility model embodiment, below the accompanying drawing of embodiment is introduced briefly, apparent, the accompanying drawing in the following describes only relates to one or more embodiment of the present utility model, but not to restriction of the present utility model.
To be that the utility model is a kind of have the structural representation preventing extension stem from skidding off the screw embodiment one of function to Fig. 1;
To be that the utility model is a kind of have the plan view preventing extension stem from skidding off the screw embodiment one of function to Fig. 2;
Fig. 3 is the sectional view of A-A in Fig. 2;
Fig. 4 is the partial enlarged drawing of B in Fig. 3;
To be that the utility model is a kind of have the cross-sectional view preventing extension stem from skidding off the screw embodiment two of function to Fig. 5;
Fig. 6 is the partial enlarged drawing of C in Fig. 5.
Reference character: 1, screw body; 2, nut; 3, penetration hole; 4, extension stem; 5, rotating disc; 6, fan-shaped boss; 7, plane of inclination; 8, clamping stagnation portion; 81, supporting member; 811, support end; 9, standing groove; 10, elastic member; 11, embedded groove; 12, seal ring.
Embodiment
For making the object of the utility model embodiment, technological scheme and advantage clearly, to the utility model is a kind of below with reference to Fig. 1 to Fig. 6 there is the screw embodiment preventing extension stem from skidding off function does and describe clearly and completely further.Obviously, described embodiment is section Example of the present utility model, instead of whole embodiments.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, belongs to the scope of the utility model protection.
For the utility model is a kind of, there is the accompanying drawing preventing extension stem from skidding off the screw embodiment one of function in Fig. 1 to Fig. 4, repeat no more in the technical characteristics that the part in these figure is identical with the content quoted as proof in background technique and its this specification of beneficial effect.
Can know in Fig. 4 and find out, screw body 1 is provided with nut 2, the hole wall of penetration hole 3 is provided with the standing groove 9 of more than 1 or 1, the quantity of standing groove 9 is preferably multiple, and multiple standing groove 9 is along the length direction circumferentially array distribution of penetration hole 3, supporting member 81 is equipped with in each standing groove 9, and be connected with elastic member 10 between supporting member 81 and standing groove 9 bottom land, supporting member 81 is provided with support end 811 away from one end of elastic member 10, support end 811 is subject to the elastic force effect of elastic member 10 and inconsistent with extension stem 4 sidewall, the sidewall of extension stem 4 is also provided with the embedded groove 11 embedded for support end 811.
By arranging clamping stagnation portion 8 in penetration hole 3, when not needing to use the plane of inclination 7 on fan-shaped boss 6 top on extension stem 4 to outstanding nut 2 surface, be arranged on the clamping stagnation portion 8 in penetration hole 3, the effect of clamping stagnation extension stem 4 will be played, even if user is whole screw upset or rock, whole extension stem 4 still can be trapped in penetration hole 3, can not skid off penetration hole 3 because of the effect of external force, avoids extension stem 4 surprisingly skid off penetration hole 3 and lose, in addition on the one hand, when needs use extension stem 4, the rotatable whole rotating disc 5 of user, make extension stem 4 by the plane of inclination 7 on fan-shaped boss 6, top on extension stem 4 is surperficial to outstanding nut 2, although and have the existence in clamping stagnation portion 8 in this process, but the effect increasing clamping stagnation power between extension stem 4 and penetration hole 3 hole wall is only played in clamping stagnation portion 8, instead of restriction extension stem 4 skids off from penetration hole 3 completely, so whole extension stem 4 still can successfully eject, and when pushing up ideal position, clamping stagnation portion 8 moment all plays the effect of clamping stagnation, user is when using crow bar rotary screw, extension stem 4 also can not slide down along penetration hole 3, use more smooth and easy, convenient.
The hole wall of penetration hole 3 is provided with standing groove 9, clamping stagnation portion 8 comprises supporting member 81, described supporting member 81 is positioned at standing groove 9 and can be inconsistent with extension stem 4 surface, the elastic member 10 pushed against for promoting supporting member 81 and extension stem 4 surface is also provided with in standing groove 9, what elastic member 10 can promote supporting member 81 and extension stem 4 surface supports power, and elastic member 10 is preferably spring, because passable everywhere on spring market, less expensive, and the elastic force of various spring is multifarious, the demand that this place supports power can be met, also support power for later stage adjustment to provide convenience.
The mating reaction of support end 811 and embedded groove 11, also can prevent extension stem 4 from skidding off from penetration hole 3 further, because support end 811 is once be embedded in the middle of embedded groove 11, just be equivalent to add the friction factor between supporting member 81 and extension stem 4, make clamping stagnation effect more outstanding, the disc shape that end of conflicting is protruding, described embedded groove 11 for cross section be the annular groove of circular arc, the conflict end of disc design and cross section are that the annular groove of circular arc type cooperatively interacts, on the basis strengthening clamping stagnation effect, when needs eject extension stem 4, the disc of support end 811 can skid off more swimmingly in annular groove, improve the flexible sensitivity of whole extension stem 4.
There is the schematic diagram preventing extension stem 4 from skidding off the screw embodiment two of function for the utility model is a kind of shown in Fig. 5 and Fig. 6, can find out from accompanying drawing, this embodiment only arranges a seal ring 12 in penetration hole 3, the setting of seal ring 12: the clamping stagnation power between extension stem 4 and penetration hole 3 can be strengthened on the one hand, the function preventing dust from entering can also be played on the other hand, also the appearance catching phenomenon making rotating disc 5 due to extraneous entering of dust is prevented, extend the working life of screw, the seal ring 12 needing to arrange more than 1 that certainly can use according to reality also or the size of replacing seal ring 12, to promote clamping stagnation power and sealing effect.
The above is only exemplary embodiment of the present utility model, but not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.
Claims (5)
1. one kind has the bolt preventing extension stem from skidding off function, comprise screw body, nut, described nut is provided with penetration hole, extension stem is provided with in described penetration hole, described screw body is provided with the rotating disc with fan-shaped boss, the side away from rotating disc of described fan-shaped boss is provided with the plane of inclination of conflicting with extension stem end face, the true dip direction of described plane of inclination is that the straight flange of fan-shaped boss the same side tilts to the straight flange of opposite side, it is characterized in that: be provided with the clamping stagnation portion for increasing clamping stagnation power between extension stem and penetration hole hole wall in described penetration hole.
2. according to claim 1 a kind ofly have the bolt preventing extension stem from skidding off function, it is characterized in that: the hole wall of described penetration hole is provided with standing groove, described clamping stagnation portion comprises supporting member, described supporting member is positioned at standing groove and can be inconsistent with extension stem surface, is also provided with for promoting supporting member and the surperficial elastic member pushed against of extension stem in described standing groove.
3. according to claim 2 a kind ofly have the bolt preventing extension stem from skidding off function, it is characterized in that: described supporting member is provided with support end, the sidewall of described extension stem established the embedded groove embedded for support end with several.
4. according to claim 3 a kind ofly have the bolt preventing extension stem from skidding off function, it is characterized in that: described support end is protruding disc shape, the annular groove of described embedded groove to be cross section be circular arc.
5. according to claim 1 a kind ofly have the bolt preventing extension stem from skidding off function, it is characterized in that: described clamping stagnation portion is the seal ring being positioned at penetration hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092238.1U CN204458729U (en) | 2015-02-07 | 2015-02-07 | A kind of have the bolt preventing extension stem from skidding off function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092238.1U CN204458729U (en) | 2015-02-07 | 2015-02-07 | A kind of have the bolt preventing extension stem from skidding off function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458729U true CN204458729U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520092238.1U Expired - Fee Related CN204458729U (en) | 2015-02-07 | 2015-02-07 | A kind of have the bolt preventing extension stem from skidding off function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144926A (en) * | 2019-06-07 | 2019-08-20 | 庞永庆 | A kind of damping building structure of pillar ground |
-
2015
- 2015-02-07 CN CN201520092238.1U patent/CN204458729U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144926A (en) * | 2019-06-07 | 2019-08-20 | 庞永庆 | A kind of damping building structure of pillar ground |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20160207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |