CN204419803U - A kind of hex head bolt installing good airproof performance - Google Patents
A kind of hex head bolt installing good airproof performance Download PDFInfo
- Publication number
- CN204419803U CN204419803U CN201520057812.XU CN201520057812U CN204419803U CN 204419803 U CN204419803 U CN 204419803U CN 201520057812 U CN201520057812 U CN 201520057812U CN 204419803 U CN204419803 U CN 204419803U
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- China
- Prior art keywords
- screw rod
- bolt
- bolt head
- head
- flange plate
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- 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 - Fee Related
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- Gasket Seals (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a kind of hex head bolt installing good airproof performance, comprise bolt head and the bolt head bottom surface screw rod to downward-extension, the external frame of described bolt head is hexahedron, flange plate is provided with between described bolt head and screw rod, described flange plate and bolt head and screw rod are structure as a whole, described flange plate is in a side end face of screw rod is provided with, external annular groove, the outer wall that described interior annular groove is close to screw rod is arranged, described external annular groove is arranged along the edge of flange plate, in described, the first rubber seal and the second rubber seal is respectively arranged with in external annular groove, described flange plate is that conical surface is arranged near one end end face of bolt head.Hex head bolt structure of the present utility model is more reasonable, greatly can improve and be connected the sealing between part, causing to avoid screw rod position to occur corrosion, with the phenomenon being connected part and occurring clamping stagnation, dismantling more convenient, and not fragile during dismounting, favourablely to increase the service life.
Description
Technical field
The utility model relates to mechanical fasteners link field, is specifically related to a kind of hex head bolt installing good airproof performance.
Background technique
Bolt is by head and a screw rod class fastening connection piece dimerous, need and nut screw connection, for being fastenedly connected two parts with through hole, this Connecting format claims bolt to connect, as nut is screwed off from bolt, can make again these two parts separately, therefore bolt connection belongs to removably connect.
Hex head bolt generally includes bolt head and the bolt head bottom surface screw rod to downward-extension, and the external frame of bolt head is hexahedron.But, existing hex head bolt is after fastenings, sealing between its bolt head and fastened part is poor, the joint of hex head bolt and part is easily occurred, and liquid infiltrates phenomenon, after long-time use will there is corrosion in hex head bolt, thus hex head bolt and part can be caused to occur the phenomenon of clamping stagnation, make the dismounting of hex head bolt more difficult, even if dismantle successfully, the possibility that hex head bolt is scrapped is also very large, and due to the structure of hex head bolt comparatively single, when turning, a kind of spanner of specification can only be adopted, poor for applicability, also there is skidding simultaneously.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of hex head bolt installing good airproof performance, the sealing solving existing hex head bolt is poor, easy generation corrosion and occur connecting catching phenomenon, causes dismounting difficulty, and the high deficiency of scrappage after dismounting.
In order to solve the problem existing for background technique, the utility model have employed following technological scheme: a kind of hex head bolt installing good airproof performance, comprise bolt head and the bolt head bottom surface screw rod to downward-extension, the external frame of described bolt head is hexahedron, flange plate is provided with between described bolt head and screw rod, described flange plate and bolt head and screw rod are structure as a whole, described flange plate is in a side end face of screw rod is provided with, external annular groove, the outer wall that described interior annular groove is close to screw rod is arranged, described external annular groove is arranged along the edge of flange plate, in described, the first rubber seal and the second rubber seal is respectively arranged with in external annular groove, described flange plate is that conical surface is arranged near one end end face of bolt head.
By adopting technique scheme, structure of the present utility model is more reasonable, by being provided with inner and outer rings connected in star in the bottom surface of flange plate and being respectively equipped with the first rubber seal and the second rubber seal in inner and outer rings connected in star, the sealing that can greatly improve this hex head bolt and be connected between part, thus the screw rod position of hex head bolt can be avoided to occur corrosion and cause and the phenomenon being connected part and occurring clamping stagnation, it is made to dismantle more convenient, and not fragile during dismounting, favourablely to increase the service life.
Further setting of the present utility model: described bolt head offers interior hexagonal groove away from one end of screw rod, the described center of interior hexagonal groove and the center of bolt head are on same straight line.
By adopting technique scheme, thus enabling hex head bolt be undertaken being wrenched or unclamping by inner hexagon spanner, making its applicability better, making the use of hex head bolt more convenient.
Further setting of the present utility model: the sidewall of described bolt head is evenly provided with some anti-skidding ribs.
By adopting technique scheme, the setting of anti-skidding rib can improve the skid resistance of bolt head sidewall greatly, the frictional force between instrument and bolt head can be increased, to reduce active force during operation tool, thus be conducive to the using effect improving this hex head bolt.
Further setting of the present utility model: described bolt head forms six bolt head chamferings away from one end end face of screw rod on orthohexagonal six angles, and the figure that described bolt head chamfering surrounds is orthohexagonal incircle.
By adopting technique scheme, thus make the hexagon dihedral in bolt head front become arc transition, and can effectively avoid occurring that bolt head scratches other part surfaces or scratches the situation of people's skin, makes its structure more reasonable.
Further setting of the present utility model: the bottom end of described screw rod is extended regular hexagon boss, the bottom surface of described regular hexagon boss is provided with cross recess.
By adopting technique scheme, thus the dismounting mode of this hex head bolt can be increased further, to realize multiple installation and removal mode, optimizing the dismounting function of hex head bolt further.
The beneficial effects of the utility model are: structure of the present utility model is more reasonable, by being provided with inner and outer rings connected in star in the bottom surface of flange plate and being respectively equipped with the first rubber seal and the second rubber seal in inner and outer rings connected in star, greatly can improve and be connected the sealing between part, cause to avoid its screw rod position to occur corrosion and the phenomenon being connected part and occurring clamping stagnation, dismantle more convenient, and not fragile during dismounting, favourablely to increase the service life.
Accompanying drawing explanation
Fig. 1 is a kind of plan view installing the hex head bolt of good airproof performance of the present utility model;
Fig. 2 is a kind of plan view installing the hex head bolt of good airproof performance of the present utility model;
Fig. 3 is a kind of worm's eye view installing the hex head bolt of good airproof performance of the present utility model.
Embodiment
In order to make content of the present utility model more clear, below in conjunction with embodiment, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1 to Figure 3, a kind of hex head bolt installing good airproof performance of the utility model embodiment, comprise bolt head 1 and the bolt head 1 bottom surface screw rod 2 to downward-extension, the external frame of bolt head 1 is hexahedron, further, flange plate 3 is provided with between bolt head 1 and screw rod 2, this flange plate 3 and bolt head 1 and screw rod 2 are structure as a whole, further, at flange plate 3 in a side end face of screw rod 2 is provided with, external annular groove 31, 32, and the outer wall that interior annular groove 31 is close to screw rod 2 is arranged, external annular groove 32 is arranged along the edge of flange plate 3, further, interior, external annular groove 31, the first rubber seal 4 and the second rubber seal 5 is respectively arranged with in 32, flange plate 3 is that conical surface is arranged near one end end face of bolt head 1, this hex head bolt structure is more reasonable, in being provided with in the bottom surface of flange plate 3, external annular groove 31, 32 and in, external annular groove 31, the first rubber seal 4 and the second rubber seal 5 is respectively equipped with in 32, the sealing that can greatly improve this hex head bolt and be connected between part, thus screw rod 2 position of hex head bolt can be avoided to occur corrosion and cause and the phenomenon being connected part and occurring clamping stagnation, it is made to dismantle more convenient, and it is not fragile during dismounting, favourablely to increase the service life.
In the present embodiment, bolt head 1 offers interior hexagonal groove 11 away from one end of screw rod 2, the center of this interior hexagonal groove 11 and the center of bolt head 1 are on same straight line, thus enable hex head bolt be undertaken being wrenched or unclamping by inner hexagon spanner, make its applicability better, make the use of hex head bolt more convenient.
In the present embodiment, the sidewall of bolt head 1 is evenly provided with some anti-skidding ribs 6, the setting of its anti-skidding rib 6 can improve the skid resistance of bolt head 1 sidewall greatly, thus the frictional force that can increase between instrument and bolt head 1, to reduce active force during operation tool, thus be conducive to the using effect improving this hex head bolt.
In the present embodiment, bolt head 1 forms six bolt head chamferings 12 away from one end end face of screw rod 2 on orthohexagonal six angles, and the figure that bolt head chamfering 12 surrounds is orthohexagonal incircle, thus make the hexagon dihedral in bolt head 1 front become arc transition, and can effectively avoid occurring that bolt head 1 scratches other part surfaces or scratches the situation of people's skin, makes its structure more reasonable.
In the present embodiment, the bottom end of screw rod 2 is extended regular hexagon boss 7, and the bottom surface of regular hexagon boss 7 is provided with cross recess 71, thus the dismounting mode of this hex head bolt can be increased further, to realize multiple installation and removal mode, optimize the dismounting function of hex head bolt further.
Claims (5)
1. one kind the hex head bolt of good airproof performance is installed, comprise bolt head and the bolt head bottom surface screw rod to downward-extension, the external frame of described bolt head is hexahedron, it is characterized in that: between described bolt head and screw rod, be provided with flange plate, described flange plate and bolt head and screw rod are structure as a whole, described flange plate is in a side end face of screw rod is provided with, external annular groove, the outer wall that described interior annular groove is close to screw rod is arranged, described external annular groove is arranged along the edge of flange plate, in described, the first rubber seal and the second rubber seal is respectively arranged with in external annular groove, described flange plate is that conical surface is arranged near one end end face of bolt head.
2. a kind of hex head bolt installing good airproof performance according to claim 1, it is characterized in that: described bolt head offers interior hexagonal groove away from one end of screw rod, the described center of interior hexagonal groove and the center of bolt head are on same straight line.
3. a kind of hex head bolt installing good airproof performance according to claim 1, is characterized in that: the sidewall of described bolt head is evenly provided with some anti-skidding ribs.
4. a kind of hex head bolt installing good airproof performance according to claim 1 or 2 or 3, it is characterized in that: described bolt head forms six bolt head chamferings away from one end end face of screw rod on orthohexagonal six angles, and the figure that described bolt head chamfering surrounds is orthohexagonal incircle.
5. a kind of hex head bolt installing good airproof performance according to claim 1, it is characterized in that: the bottom end of described screw rod is extended regular hexagon boss, the bottom surface of described regular hexagon boss is provided with cross recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057812.XU CN204419803U (en) | 2015-01-28 | 2015-01-28 | A kind of hex head bolt installing good airproof performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057812.XU CN204419803U (en) | 2015-01-28 | 2015-01-28 | A kind of hex head bolt installing good airproof performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419803U true CN204419803U (en) | 2015-06-24 |
Family
ID=53470177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520057812.XU Expired - Fee Related CN204419803U (en) | 2015-01-28 | 2015-01-28 | A kind of hex head bolt installing good airproof performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685414A (en) * | 2021-09-02 | 2021-11-23 | 浙江盛世瑞金紧固件股份有限公司 | Extrusion type sealing bolt self-adaptive to mounting plane |
-
2015
- 2015-01-28 CN CN201520057812.XU patent/CN204419803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685414A (en) * | 2021-09-02 | 2021-11-23 | 浙江盛世瑞金紧固件股份有限公司 | Extrusion type sealing bolt self-adaptive to mounting plane |
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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: 20150624 Termination date: 20170128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |