CN221257367U - Self-filling countersunk head bolt - Google Patents
Self-filling countersunk head bolt Download PDFInfo
- Publication number
- CN221257367U CN221257367U CN202323131102.0U CN202323131102U CN221257367U CN 221257367 U CN221257367 U CN 221257367U CN 202323131102 U CN202323131102 U CN 202323131102U CN 221257367 U CN221257367 U CN 221257367U
- Authority
- CN
- China
- Prior art keywords
- sealing cover
- filling
- self
- gasket
- countersunk head
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 241000587161 Gomphocarpus Species 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model relates to the technical field of self-filling countersunk head bolts, and discloses a self-filling countersunk head bolt. According to the screw cap screwing device, when the screw driver is required to be screwed, the screw driver is inserted, the sealing cap is pushed down to enable the elastic body to deform, after the screw driver is withdrawn after screwing, the elastic body elastically recovers to jack the sealing cap until the lower end of the pulling foot of the sealing cap is limited by the gasket, and the screw cap screwing device does not need to completely punch a screw bolt, so that damage to structural strength of the screw bolt is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of self-filling countersunk bolts, in particular to a self-filling countersunk bolt.
Background
Bolts are a common type of connection and are very commonly used in the industry. In order to ensure the surface smoothness of the mechanical structure, countersunk bolts are usually required to be used, the heads of the countersunk bolts are provided with grooves in the shape of a Chinese character 'yi', a Chinese character 'ji', a hexagon and the like, and the grooves are exposed on the surface of the mechanical structure, so that the surface smoothness is not good, the surface is not smooth, the surface is not attractive, negative effects can be generated in the use process of the mechanical structure, for example, the countersunk bolts on the surface of an airplane are used, and the grooves can bring extra flight resistance to the airplane.
Aiming at the grooves of the countersunk head bolts in the use environment, the current practice is to fill the grooves by special small components or putty, so that the surfaces of the nail heads of the countersunk head bolts are flush, the small components or putty are very inconvenient, time-consuming and labor-consuming in the filling process, and are easy to fall off under the conditions of long-time vibration, corrosion and the like, or the countersunk head bolts need to be re-screwed or disassembled in a short time after the filling, so that the small components or putty are not easy to disassemble.
Prior art CN208397100U, a self-filling countersunk head bolt, belongs to bolt structural design field, self-filling countersunk head bolt includes bolt main part, filling rod, elastic component and blanking cover, the bolt main part has the through-hole that runs through along the bolt axis, the filling rod reaches the elastic component is arranged in the through-hole, have the shoulder in the through-hole be used for making under the elastic component effect the upper end of filling rod keeps flush with the head of bolt main part, the blanking cover is fixed in relatively the bottom of bolt main part is used for supporting the elastic component. The self-filling countersunk head bolt is characterized in that the relative positions of a filling rod and a bolt main body are controlled to obtain a smooth and smooth countersunk head surface, so that a mechanical structure connected by the self-filling countersunk head bolt has a smooth and smooth surface;
However, due to the structural design, the middle part of the bolt is changed into a hollow structure, so that the structural strength of the bolt is greatly reduced, the bolt is very easy to generate metal fatigue fracture, and the safety is seriously influenced.
Disclosure of utility model
The utility model aims to solve the technical problems that: in order to overcome the problems presented above, a self-filling countersunk head bolt is provided which solves the problems presented above.
The utility model solves the technical problems by adopting the following technical scheme:
The self-filling countersunk head bolt comprises a bolt with an inner hexagonal hole at the upper end, wherein a first counter bore section and a second counter bore section are arranged at the top end of the bolt, and the self-filling countersunk head bolt further comprises an elastomer, a gasket and a sealing cover;
The lower end of the sealing cover is fixedly provided with two sealing cover pulling feet which are symmetrically arranged at intervals, the lower end of the sealing cover pulling feet is provided with a chamfer, the elastic body is plugged into the second counter bore section, the gasket is fixedly arranged at the bottom of the first counter bore section, when the sealing cover is installed, the sealing cover is vertically pressed down, so that the lower end of the sealing cover pulling feet penetrates through the gasket and abuts against the second counter bore section after being deformed, at the moment, the sealing cover seals the inner hexagonal hole, when a screwdriver is needed to be screwed, the sealing cover is pushed down after the screwdriver is inserted, the elastic body is deformed, after the screwdriver is withdrawn after the screwing, the elastic body elastically restores to jack up the sealing cover until the lower end of the sealing cover pulling feet is limited by the gasket.
Preferably, when the hook head part at the lower end of the cover pulling foot abuts against the lower end face of the gasket, the upper end face of the cover is flush with the upper end face of the bolt.
Preferably, the lower end surface of the gasket is fixed in the first counter bore section by gluing.
Preferably, the gasket is fixed in the first counter bore section through interference mechanical fit, and the lower end face of the gasket abuts against the bottom wall of the first counter bore section.
Preferably, the elastomer is a rubber particle.
Preferably, the cover is injection molded from a plastic material, which reduces manufacturing difficulties.
The utility model has the advantages and positive effects that: when the screw driver is needed to be screwed, the screw driver is inserted and then the sealing cover is pushed down to enable the elastic body to deform, after the screw driver is withdrawn after screwing, the elastic body elastically recovers to jack up the sealing cover until the lower end of the pulling foot of the sealing cover is limited by the gasket, compared with the prior art, the screw bolt is free from being completely punched, the damage to the structural strength of the screw bolt is effectively reduced, and the screw bolt is simple to assemble.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic top view of the present utility model;
FIG. 2 is a schematic diagram of the present utility model in full section;
Fig. 3 is a schematic view of the present utility model in full section.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Embodiments of the utility model are described in further detail below with reference to the attached drawing figures:
1-3, the self-filling countersunk head bolt comprises a bolt 17 with an inner hexagonal hole 14 at the upper end, a first counter bore section 15 and a second counter bore section 16 are arranged at the top end of the bolt 17, and the self-filling countersunk head bolt further comprises an elastomer 13, a gasket 12 and a sealing cover 10;
The lower end of the sealing cover 10 is fixedly provided with two sealing cover pulling feet 11 which are symmetrically arranged at intervals, the lower end of the sealing cover pulling foot 11 is provided with a chamfer, the elastic body 13 is plugged into the second counter bore section 16, the gasket 12 is fixedly arranged at the bottom of the first counter bore section 15, when the sealing cover 10 is installed, the sealing cover 10 is vertically pressed down, so that the lower end of the sealing cover pulling foot 11 penetrates through the gasket 12 and abuts against the second counter bore section 16 after being deformed, at this time, the sealing cover 10 seals the inner hexagonal hole 14, when the screw driver is needed to be screwed, the sealing cover 10 is pushed down after the screw driver is inserted, so that the elastic body 13 is deformed, after the screw driver is withdrawn after the screw driver is screwed out, the elastic body 13 is elastically restored to jack the sealing cover 10 until the lower end of the sealing cover pulling foot 11 is not limited by the gasket 12.
Preferably, when the hook head portion at the lower end of the cover pulling foot 11 abuts against the lower end face of the gasket 12, the upper end face of the cover 10 is flush with the upper end face of the bolt 17.
Preferably, the lower end surface of the gasket 12 is fixed in the first counterbore section 15 by gluing.
Preferably, the gasket 12 is secured within the first counterbore section 15 by an interference mechanical fit, and the lower end surface of the gasket 12 abuts the bottom wall of the first counterbore section 15.
Preferably, the elastic body 13 is a rubber particle body.
Preferably, the closure 10 is injection molded from a plastic material, which reduces manufacturing difficulties.
It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the utility model is not limited to the examples described in the detailed description, but rather falls within the scope of the utility model as defined by other embodiments derived from the technical solutions of the utility model by those skilled in the art.
Claims (6)
1. The utility model provides a self-filling countersunk head bolt, includes bolt (17) that upper end has interior hexagonal hole (14), its characterized in that: the top end of the bolt (17) is provided with a first counter bore section (15) and a second counter bore section (16), and the bolt further comprises an elastomer (13), a gasket (12) and a sealing cover (10);
The lower end of the sealing cover (10) is fixedly provided with two sealing cover pulling feet (11) which are symmetrically arranged at intervals left and right, the lower end of the sealing cover pulling foot (11) is provided with a chamfer, the elastic body (13) is plugged into the second counter bore section (16), the gasket (12) is fixedly arranged at the bottom of the first counter bore section (15), the sealing cover (10) is installed, when the sealing cover (10) is vertically pressed down, the sealing cover pulling foot (11) penetrates through the gasket (12) and abuts against the second counter bore section (16) after being deformed, at the moment, the sealing cover (10) seals the inner hexagonal hole (14), when a screwdriver is needed to be screwed in, the sealing cover (10) is pushed down after the screwdriver is inserted, the elastic body (13) is elastically restored to jack the sealing cover (10) until the lower end of the sealing cover pulling foot (11) is deformed, and the sealing cover pulling foot (11) is completely damaged by the sealing cover is completely, and compared with the prior art, the sealing cover is completely reduced in strength and the structure of the sealing cover (17).
2. A self-filling countersunk head bolt according to claim 1, wherein: when the hook head part at the lower end of the cover pulling foot (11) is abutted against the lower end face of the gasket (12), the upper end face of the cover (10) is flush with the upper end face of the bolt (17).
3. A self-filling countersunk head bolt according to claim 2, wherein: the lower end face of the gasket (12) is fixed in the first counter bore section (15) through gluing.
4. A self-filling countersunk head bolt according to claim 2, wherein: the gasket (12) is fixed in the first counter bore section (15) through interference mechanical fit, and the lower end face of the gasket (12) abuts against the bottom wall of the first counter bore section (15).
5. A self-filling countersunk head bolt according to claim 3 or 4, wherein: the elastic body (13) is a rubber particle body.
6. A self-filling countersunk head bolt according to claim 5, wherein: the closure (10) is injection molded from a plastics material, which reduces the difficulty of manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323131102.0U CN221257367U (en) | 2023-11-20 | 2023-11-20 | Self-filling countersunk head bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323131102.0U CN221257367U (en) | 2023-11-20 | 2023-11-20 | Self-filling countersunk head bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221257367U true CN221257367U (en) | 2024-07-02 |
Family
ID=91652998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323131102.0U Active CN221257367U (en) | 2023-11-20 | 2023-11-20 | Self-filling countersunk head bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221257367U (en) |
-
2023
- 2023-11-20 CN CN202323131102.0U patent/CN221257367U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |