CN216306449U - Fastening bolt for water tank - Google Patents
Fastening bolt for water tank Download PDFInfo
- Publication number
- CN216306449U CN216306449U CN202122992239.XU CN202122992239U CN216306449U CN 216306449 U CN216306449 U CN 216306449U CN 202122992239 U CN202122992239 U CN 202122992239U CN 216306449 U CN216306449 U CN 216306449U
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- Prior art keywords
- bolt
- head
- screw rod
- water tank
- waterproof
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Abstract
The utility model discloses a fastening bolt for a water tank, which comprises a bolt, wherein the bolt comprises a screw rod, one end of the screw rod is integrally provided with a screw head, one end of the screw rod, which is far away from the screw head, is provided with a threaded part, the outside of the bolt is coated with a waterproof part made of a high polymer material, the waterproof part specifically comprises an installation head coated outside the screw head, the lower end surface of the installation head is integrally provided with a sealing sleeve, the periphery of the sealing sleeve is provided with at least one pair of convex waterproof parts, and the sealing sleeve is coated on the periphery of the screw rod. The sealing effect can be achieved without a sealing rubber gasket, the bolt is prevented from being directly contacted with the outside, and the corrosion resistance of the bolt is improved.
Description
Technical Field
The utility model relates to the field of mechanical parts, in particular to a fastening bolt for a water tank.
Background
The water tank is an apparatus for storing water for public use, domestic water, fire water, or industrial water, and thus requires strong sealability to prevent leakage of liquid, and in addition, the water tank bolt requires good corrosion resistance to ensure that a portion exposed to the outside is not corroded to be damaged. Therefore, the conventional water tank bolt usually needs to be matched with a plurality of sealing elements such as a sealing washer, a rubber ring and the like to achieve the sealing effect, and the bolt is usually made of nylon.
This has led to the bolt of water tank when the installation extremely loaded down with trivial details to the bolt shear resistance and the tensile strength of nylon material are far less than the bolt of metal material, consequently need often change and overhaul to the bolt of water tank, have aggravated relevant staff's operating pressure greatly.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a fastening bolt for a water tank, which is realized by the following steps:
the utility model provides a fastening bolt for water tank, includes the bolt, the bolt includes the screw rod, the one end integrated into one piece of screw rod sets up the spiral shell head, the screw rod is kept away from the one end of spiral shell head sets up screw thread portion, the outside cladding of bolt has the waterproof piece of polymer polymeric material preparation, waterproof specifically including the cladding in the installation head of the outside of spiral shell head, the lower terminal surface integrated into one piece of installation head sets up the seal cover, the periphery of seal cover sets up at least a pair of convex waterproof portion, the seal cover cladding in the periphery of screw rod.
As a further improvement, the mounting head is in a spherical cylinder shape, and a pair of symmetrical dismounting planes are axially arranged on the cylindrical surface of the mounting head.
As a further improvement, the waterproof portion has a rounded truncated shape that converges in a direction away from the mounting head.
As a further improvement, the screw head is provided with a groove.
The utility model has the beneficial effects that:
1. the installation head is coated outside the screw head, and the sealing sleeve which is integrally formed with the installation head is coated outside the bolt, so that the screw head of the bolt is prevented from being directly exposed to the outside, the corrosion resistance of the bolt is improved, and the insulating property of the bolt is also improved.
2. Through the waterproof piece that has the polymer material preparation in the outside cladding of bolt to set up at least a pair of convex waterproof portion in the periphery of seal cover, realized reaching the effect of sealing washer in the traditional water tank bolt accessory, sealed cushion through waterproof portion, make the installation part still less, the dismouting is more convenient.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic cross-sectional structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The utility model provides a fastening bolt for water tank, includes bolt 2, bolt 2 includes screw rod 22, the one end integrated into one piece of screw rod 22 sets up spiral shell head 21, screw rod 22 is kept away from the one end of spiral shell head 21 sets up screw thread portion 23, the outside cladding of bolt 2 has waterproof piece 1, waterproof piece 1 is in behind the hot melt of polymer material the outside mould shaping of bolt 2. The waterproof part 1 specifically comprises an installation head 11 coated outside the screw head 21, a sealing sleeve 12 is integrally formed on the lower end surface of the installation head 11, at least one pair of convex waterproof parts 13 are arranged on the periphery of the sealing sleeve 12, and the sealing sleeve 12 is coated on the periphery of the screw rod 22.
Wherein, the sealing sleeve 12 is not covered on the thread part 23, the length of the screw 22 of the bolt 2 is defined as L, and the length of the thread part 23 is L1Said sealing sleeve 12 has a length l2Then there is l1＝40％～50％L，l225 to 30 percent. If the length of the sealing sleeve 12 is too long, the sealing sleeve 12 is wrapped outside the threaded portion 23 and then extruded by threads in the screwing process to bear axial pressure, so that the sealing sleeve 12 is damaged.
The fastening bolt for the water tank provided by the utility model has the following two installation modes:
firstly, a through hole is formed in the connected piece, the bolt 2 penetrates through the two connected pieces, and nuts are screwed on the threaded parts 23 to clamp the two connected pieces; and secondly, a threaded hole is formed in one of the connecting pieces, and the bolt 2 is screwed in the threaded hole. Therefore, for the convenience of disassembly and assembly, as a further improvement, the mounting head 11 is in a spherical cylinder shape, and a pair of symmetrical disassembly and assembly planes are axially arranged on the cylindrical surface of the mounting head 11.
In order to facilitate insertion of the sealing boot 12 into the mounting hole of the connected member and to prevent the waterproof member 1 from coming off, the waterproof portion 13 is further improved to have an inverted circular truncated cone shape that is contracted in a direction away from the mounting head 11.
Wherein, for improving injection moulding's waterproof part 1 with the tight degree of being connected of bolt 2, the phenomenon of skidding can not appear between rotatory in-process bolt 2 and the waterproof part 1 when being convenient for follow-up dismantlement bolt 2 and lead to bolt 2 can't be unscrewed, as further improvement, the ditch groove has been seted up on the spiral shell head 21. Waterproof part 1 has some materials to get into the slot when injection moulding, forms after the shaping to inlay and establishes, can more effectual drive bolt 2 rotate.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a fastening bolt for water tank, includes the bolt, the bolt includes the screw rod, the one end integrated into one piece of screw rod sets up the spiral shell head, the screw rod is kept away from the one end of spiral shell head sets up screw thread portion, a serial communication port, the outside cladding of bolt has the waterproof piece of polymer polymeric material preparation, waterproof specifically include the cladding in the installation head of the outside of spiral shell head, the lower extreme surface integrated into one piece of installation head sets up the seal cover, the periphery of seal cover sets up at least a pair of convex waterproof portion, the seal cover cladding in the periphery of screw rod.
2. The fastening bolt for water tank as claimed in claim 1, wherein the mounting head is in the shape of a spherical cylinder, and a pair of symmetrical mounting and dismounting planes are axially arranged on the cylindrical surface of the mounting head.
3. A fastening bolt for a water tank as defined in claim 1, wherein said waterproof portion has a rounded truncated shape which is contracted in a direction away from said mounting head.
4. A fastening bolt for a water tank as defined in claim 1, wherein said head is formed with a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122992239.XU CN216306449U (en) | 2021-11-30 | 2021-11-30 | Fastening bolt for water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122992239.XU CN216306449U (en) | 2021-11-30 | 2021-11-30 | Fastening bolt for water tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216306449U true CN216306449U (en) | 2022-04-15 |
Family
ID=81081817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122992239.XU Active CN216306449U (en) | 2021-11-30 | 2021-11-30 | Fastening bolt for water tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216306449U (en) |
-
2021
- 2021-11-30 CN CN202122992239.XU patent/CN216306449U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |