CN204739062U - Waterproof screw - Google Patents
Waterproof screw Download PDFInfo
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- CN204739062U CN204739062U CN201520484807.7U CN201520484807U CN204739062U CN 204739062 U CN204739062 U CN 204739062U CN 201520484807 U CN201520484807 U CN 201520484807U CN 204739062 U CN204739062 U CN 204739062U
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- spiral shell
- water
- groove
- shell head
- screw rod
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Abstract
The utility model discloses a waterproof screw, include: spiral shell head, screw rod and thread, the spiral shell head is equipped with towards the recess of spiral shell head indent in the junction with the screw rod, the marine glue snare is located on the screw rod and is arranged the recess of spiral shell head in, and the spiral shell head forms unsettled flange in the radial outside of recess. The recess of the overhead increase indent of spiral shell to assemble waterproof rubber ring in the groove, because of the notched restriction, the expansion scope of waterproof rubber ring will receive the restriction behind the pressurized, avoid waterproof rubber ring inner ring to expand problem too big and the screw rod phase separation because of the pressurized, so play good water -proof effects. The spiral shell head forms unsettled flange structure in the radial outside of recess, waterproof screw install the back, and the unsettled flange of spiral shell head covers post screw rod and waterproof rubber ring totally, prevents that the rainwater from directly flowing through to waterproof rubber ring, changes and permeates in avoiding the rainwater follow clearance of screw rod.
Description
Technical field
The utility model relates to technical field of fastening, discloses a kind of Water-proof screw especially.
Background technique
Fastening piece be exactly fastening two or more parts (or component) be fastenedly connected become one overall time the general name of class mechanical parts that adopts.Screw is a most widely used class fastening piece.Along with the continuous change and progress of using scope and Environmental Conditions, more demand be it is also proposed to screw.
To the water-proof function needs that the screw of open air use just has proposition higher.To this, also there are relevant technical research and improvement result.Such as, patent CN203161761U has opened a kind of Water-proof screw, it comprises screw rod and screw head, one end of described screw rod is connected with the inner side surface of screw head, be characterized in, the inner side surface of described screw head is provided with the toroidal cavity concentric with screw head, and the inner peripheral surface of described toroidal cavity is the round table surface that outer imperial palace is little.The design of toroidal cavity and the vertical object of group coordinate the effect that can reach waterproof, thus save rubber ring.And for example, patent CN204127069U discloses a kind of Water-proof screw assembly, comprise screw, waterproof shell fragment and waterproof grommet, by arranging receiving groove in the relative waterproof grommet side of waterproof shell fragment, waterproof grommet is made to be arranged in described receiving groove, the elasticity tension of restriction waterproof grommet, avoid waterproof grommet when stressed excessive, elasticity tension is excessive, its inner ring is extruded expansion thus separates with the stud cylinder of described screw and forms gap, can not closely cooperate with screw, and then the problem of object of waterproof sealing can not be reached.
In prior art, mainly still carry out water-tight by arranging seal ring.But seal ring is when pressurized is excessive, and its inner ring is easily separated with the screw rod of screw by expanding and forms gap, and then affects waterproofing effect and the classification of waterproof of screw.
Model utility content
The purpose of this utility model is to provide a kind of Water-proof screw, spiral shell head increases the groove of indent, and waterproof apron is assembled in groove, avoid waterproof apron inner ring because pressurized expansion excessive and with the problem that screw rod is separated, play good waterproofing effect and improve classification of waterproof.
The utility model provides a kind of Water-proof screw, comprising:
Spiral shell head, is positioned at the head of Water-proof screw;
Screw rod, is connected with spiral shell head, axially extends to the afterbody of Water-proof screw; Wherein, spiral shell head is provided with the groove towards spiral shell head indent in the joint with screw rod;
Thread, is arranged on the border of screw rod; With
Waterproof apron, is sheathed on screw rod, and is placed in the groove of spiral shell head.
Spiral shell head increases the groove of indent, and waterproof apron is assembled in groove, because of reeded restriction after pressurized, the expansion scope of waterproof apron will be restricted, avoid the problem that waterproof apron inner ring is separated with screw rod because pressurized expansion is excessive, so play good waterproofing effect.
Preferably, ringwise, described waterproof apron is O type circle to described groove entirety.
Preferably, groove annular diameters is identical with screw diameter, and the corner of described bottom portion of groove is curved corner.
Preferably, be curved corner bottom the inner ring of described groove He bottom outer shroud, both radians are identical, are symmetrical set.
Waterproof apron generally adopts the O such as silica gel ring, rubber ring type circle, and bottom portion of groove adopts curved corner, coordinates more tight with the O type circle after pressurized.
Preferably, the outer shroud top of described groove is curved corner, and described arc is the arc radially expanded, and forms the structure that open top is large, bottom opening is little.
After O type circle pressurized, closely cooperate with the curved corner of bottom portion of groove bottom it, its expansionary force progressively will be transferred to O type circle top, and groove top is set to the large arc expansion opening of opening, be convenient to the stress relief after the pressurized of O type circle, O type circle engaged more tight.
Preferably, spiral shell head forms unsettled flange at the radial outside of groove.
Preferably, unsettled flange is the plane tilted in the side of Water-proof screw head, and this clinoplain and Water-proof screw axially form acute angle, are generally 45 ° to 75 °.
Preferably, the unsettled flange of groove both sides is symmetrical arranged, and the angle that two clinoplains are formed is 90 °-150 °, is preferably 120 °-150 °.
After Water-proof screw is installed, the unsettled flange of spiral shell head covers post screw rod and waterproof apron completely, prevents rainwater from directly flowing through to waterproof apron, more easily avoids rainwater to permeate from the gap of screw rod.
Preferably, Luo Toushang is provided with type groove, such as hexangle type groove, blossom type groove etc.
The beneficial effects of the utility model have:
1, spiral shell head increases the groove of indent, and waterproof apron is assembled in groove, because of reeded restriction after pressurized, the expansion scope of waterproof apron will be restricted, avoid the problem that waterproof apron inner ring is separated with screw rod because pressurized expansion is excessive, so play good waterproofing effect.
2, spiral shell head forms unsettled flanged structure at the radial outside of groove, and after Water-proof screw is installed, the unsettled flange of spiral shell head covers post screw rod and waterproof apron completely, prevents rainwater from directly flowing through to waterproof apron, more easily avoids rainwater to permeate from the gap of screw rod.
3, bottom portion of groove adopts curved corner, and the outer shroud top of groove is the curved corner expanded outwardly, and O type circle is engaged more tight.
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of embodiment 1 Water-proof screw (combination waterproof apron).
Fig. 2 is the sectional structure schematic diagram of embodiment 1 Water-proof screw (not combining waterproof apron).
Fig. 3 is the sectional structure enlarged diagram of the spiral shell head of embodiment 1 Water-proof screw.
Fig. 4 is embodiment 2 Water-proof screw (not combining waterproof apron) structural representation.
Fig. 5 is the left TV structure schematic diagram of embodiment 2 Water-proof screw.
In figure, 1-spiral shell head, 2-screw rod, 3-thread, 4-waterproof apron, 5-groove, the unsettled flange of 6-, 7-type groove.
Embodiment
The present embodiment is the utility model preferred implementation, and other its principles all are identical with the present embodiment or approximate with basic structure, all within the utility model protection domain.
Embodiment 1
Incorporated by reference to referring to accompanying drawing 1 to 3, the Water-proof screw of the present embodiment, comprising:
Spiral shell head 1, is positioned at the head of Water-proof screw, and Luo Toushang is provided with hexangle type groove 7;
Screw rod 2, is connected with spiral shell head 1, axially extends to the afterbody of Water-proof screw; Wherein, spiral shell head 1 is provided with the groove 5 towards spiral shell head 1 indent in the joint with screw rod 2;
Thread 3, is arranged on the border of screw rod 2; With
Waterproof apron 4, is sheathed on screw rod 2, and is placed in the groove 5 of spiral shell head 1;
Wherein, spiral shell head 1 forms unsettled flange 6 at two radial outsides of groove 5; The unsettled flange 6 of groove 5 both sides is symmetrical arranged, and unsettled flange 6 is the plane tilted in the side of Water-proof screw head, and this clinoplain and Water-proof screw axially form 60 ° of acute angles, and the angle that two clinoplains are formed is 120 °.Certainly, the acute angle that the clinoplain of unsettled flange 6 head side and Water-proof screw are axially formed, can be selected within the scope of 75 ° at 45 °, corresponding, the angle that two clinoplains are formed is then within the scope of 90 °-150 °.
Spiral shell head increases the groove of indent, and waterproof apron is assembled in groove, because of reeded restriction after pressurized, the expansion scope of waterproof apron will be restricted, avoid the problem that waterproof apron inner ring is separated with screw rod because pressurized expansion is excessive, so play good waterproofing effect.After Water-proof screw is installed, the unsettled flanged structure of spiral shell head covers post screw rod and waterproof apron completely, prevents rainwater from directly flowing through to waterproof apron, more easily avoids rainwater to permeate from the gap of screw rod.
As the preferred version of the present embodiment, more specifically, ringwise, waterproof apron 4 generally adopts the O such as silica gel ring, rubber ring type circle to described groove 5 entirety;
Groove 5 annular diameters is identical with screw rod 2 diameter, is curved corner bottom the inner ring of groove 5 He bottom outer shroud, and both radians are identical, are symmetrical set;
The outer shroud top of groove 5 is curved corner, and described arc is the arc radially expanded, and forms the structure that open top is large, bottom opening is little.
Bottom portion of groove adopts curved corner, coordinates more tight with the O type circle after pressurized.After O type circle pressurized, closely cooperate with the curved corner of bottom portion of groove bottom it, its expansionary force progressively will be transferred to O type circle top, and groove top is set to the large arc expansion opening of opening, be convenient to the stress relief after the pressurized of O type circle, O type circle engaged more tight.
Embodiment 2
Incorporated by reference to referring to accompanying drawing 4 to 5, the Water-proof screw of the present embodiment, comprising:
Spiral shell head 1, is positioned at the head of Water-proof screw, and spiral shell head 1 is provided with hexangle type groove 7; Certainly, the shape of grooved can be selected according to needs, and such as the present embodiment just selects blossom type groove;
Screw rod 2, is connected with spiral shell head 1, axially extends to the afterbody of Water-proof screw; Wherein, spiral shell head 1 is provided with the annular groove 5 towards spiral shell head 1 indent in the joint with screw rod 2;
Thread 3, is arranged on the border of screw rod 1; With
Waterproof apron (not shown), is the O such as silica gel ring, rubber ring type circle, is sheathed on screw rod 2, and is placed in the annular groove 5 of spiral shell head 1;
Concrete, groove 4 annular diameters is identical with screw rod 2 diameter, and be curved corner bottom the inner ring of described groove 5 He bottom outer shroud, both radians are identical, are symmetrical set;
The outer shroud top of described groove 5 is curved corner, and described arc is the arc radially expanded, and forms the structure that open top is large, bottom opening is little;
Wherein, spiral shell head 1 forms unsettled flange 6 at two radial outsides of groove 5; The unsettled flange 6 of groove 5 both sides is symmetrical arranged, and unsettled flange 6 is the plane tilted in the side of Water-proof screw head, and this clinoplain and Water-proof screw axially form 60 ° of acute angles, and the angle that two clinoplains are formed is 120 °.Certainly, the clinoplain of unsettled flange 6 head side and Water-proof screw axially form acute angle, can be selected at 45 ° within the scope of 75 °, corresponding, the angle that two clinoplains are formed is then within the scope of 90 °-150 °.
Spiral shell head increases the groove of indent, and waterproof apron is assembled in groove, because of reeded restriction after pressurized, the expansion scope of waterproof apron will be restricted, avoid the problem that waterproof apron inner ring is separated with screw rod because pressurized expansion is excessive, so play good waterproofing effect.After Water-proof screw is installed, the unsettled flanged structure of spiral shell head covers post screw rod and waterproof apron completely, prevents rainwater from directly flowing through to waterproof apron, more easily avoids rainwater to permeate from the gap of screw rod.
Bottom portion of groove adopts curved corner, coordinates more tight with the O type circle after pressurized.After O type circle pressurized, closely cooperate with the curved corner of bottom portion of groove bottom it, its expansionary force progressively will be transferred to O type circle top, and groove top is set to the large arc expansion opening of opening, be convenient to the stress relief after the pressurized of O type circle, O type circle engaged more tight.
Above disclosedly be only preferred embodiment of the present utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (10)
1. a Water-proof screw, is characterized in that: comprising:
Spiral shell head, is positioned at the head of Water-proof screw;
Screw rod, is connected with spiral shell head, axially extends to the afterbody of Water-proof screw; Wherein, spiral shell head is provided with the groove towards spiral shell head indent in the joint with screw rod;
Thread, is arranged on the border of screw rod; With
Waterproof apron, is sheathed on screw rod, and is placed in the groove of spiral shell head.
2. Water-proof screw according to claim 1, is characterized in that: ringwise, described waterproof apron is O type circle to described groove entirety.
3. Water-proof screw according to claim 2, is characterized in that: groove annular diameters is identical with screw diameter, and the corner of described bottom portion of groove is curved corner.
4. Water-proof screw according to claim 3, is characterized in that: be curved corner bottom the inner ring of described groove He bottom outer shroud, and both radians are identical, are symmetrical set.
5. the Water-proof screw according to claim 3 or 4, is characterized in that: the outer shroud top of described groove is curved corner, and described arc is the arc radially expanded, and forms the structure that open top is large, bottom opening is little.
6. the Water-proof screw according to claim 1 or 3, is characterized in that: spiral shell head forms unsettled flange at the radial outside of groove.
7. Water-proof screw according to claim 6, is characterized in that: unsettled flange is the plane tilted in the side of Water-proof screw head, and this clinoplain and Water-proof screw axially form acute angle, and described acute angle is 45 ° to 75 °.
8. Water-proof screw according to claim 7, is characterized in that: the unsettled flange of groove both sides is symmetrical arranged, and the angle that two clinoplains are formed is 90 °-150 °.
9. Water-proof screw according to claim 8, is characterized in that: the angle that two clinoplains are formed is 120 °-150 °.
10. Water-proof screw according to claim 6, is characterized in that: Luo Toushang is provided with type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484807.7U CN204739062U (en) | 2015-07-07 | 2015-07-07 | Waterproof screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484807.7U CN204739062U (en) | 2015-07-07 | 2015-07-07 | Waterproof screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204739062U true CN204739062U (en) | 2015-11-04 |
Family
ID=54420801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520484807.7U Expired - Fee Related CN204739062U (en) | 2015-07-07 | 2015-07-07 | Waterproof screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204739062U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321599A (en) * | 2016-10-27 | 2017-01-11 | 苏州市淞舜五金有限公司 | Truss-head screw |
| CN110578742A (en) * | 2019-09-27 | 2019-12-17 | 昆山达亚汽车零部件有限公司 | Sealing mechanism of automobile control chamber cover plate |
-
2015
- 2015-07-07 CN CN201520484807.7U patent/CN204739062U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321599A (en) * | 2016-10-27 | 2017-01-11 | 苏州市淞舜五金有限公司 | Truss-head screw |
| CN110578742A (en) * | 2019-09-27 | 2019-12-17 | 昆山达亚汽车零部件有限公司 | Sealing mechanism of automobile control chamber cover plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000, 1F2, west of No. 27, Guangsha Road, ten industrial zone, lower Town, Fuyong Town, Shenzhen, Guangdong, Baoan District Patentee after: Shenzhen deep impression fastening Polytron Technologies Inc Address before: 518000, 1F2, west of No. 27, Guangsha Road, ten industrial zone, lower Town, Fuyong Town, Shenzhen, Guangdong, Baoan District Patentee before: Deep image fastening system (Shenzhen) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20180707 |