CN221033564U - Anti-loosening slotted cylindrical head screw - Google Patents
Anti-loosening slotted cylindrical head screw Download PDFInfo
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- CN221033564U CN221033564U CN202322893156.4U CN202322893156U CN221033564U CN 221033564 U CN221033564 U CN 221033564U CN 202322893156 U CN202322893156 U CN 202322893156U CN 221033564 U CN221033564 U CN 221033564U
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- screw
- nut
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- stopper
- head
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- 230000002265 prevention Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a loosening-preventing slotting cylindrical head screw which comprises a screw body, an upper nut, a lower nut, a limiting block, limiting holes, limiting nails and through holes, wherein the through holes for clamping the screw body are formed in the upper nut and the lower nut, the limiting block is positioned between the upper nut and the lower nut, the limiting holes are formed in two ends of the limiting block, and the limiting nails penetrate through the limiting holes and are arranged on the limiting block.
Description
[ Field of technology ]
The utility model relates to the technical field of screws, in particular to a loosening-preventing slotted cylindrical head screw.
[ Background Art ]
With the continuous development of the modern society, the cylindrical head screw gradually becomes an indispensable mechanical element in the mechanical production and processing process, and the screw mainly has the functions of connecting two workpieces together and fastening, and the screw is used on common equipment, such as mobile phones, computers, automobiles, bicycles, various machine tools and equipment, and almost all machines need to be used on the screw, so the screw is an indispensable industrial necessity in daily life. However, when the existing cylindrical head screw is used, the screw is usually fixed and not firm when manually operated by a screwdriver, and after long-time use, the screw is easy to loose, so that the connection is unstable, the screw head is often required to be matched with the screwdriver for screwing, once the screw head is easy to oxidize and rust after long-time use, the whole screw is required to be replaced after damage, and therefore the cost is increased.
In order to solve the problems in the prior art, as in the application number 201310612291.5, a grooved cylindrical head shaft screw is provided, and a structure in which a pressing pad and the grooved cylindrical head screw are arranged in a split manner is adopted, so that the grooved cylindrical head screw is easy to replace after a thread or a head is damaged, materials are saved, meanwhile, the pressing pad with different specifications is replaced, different actual conditions can be met, different shaft position screws are not required to be prepared, and the universality is strong. But this structure has the following disadvantages:
1. Although the structure adopts the split arrangement of the pressing pad and the slotted cylinder head screw, the screw thread or the head is easy to replace after being damaged, the pressing pad and the slotted cylinder head screw are movably sleeved, looseness is easy to occur in the long-time mutual screwing process, and the installation process is complicated.
2. The structure is not provided with a limiting block, and the cylindrical head screw is easy to loose after long-time use, so that the connection is unstable.
[ utility model ]
The utility model aims to solve the problems in the prior art, and provides a loosening-preventing slotted cylindrical head screw, wherein the head of a screw body is arranged in an upper nut and a lower nut, the upper nut and the lower nut are respectively arranged at the upper end and the lower end of a limiting block through bolts, so that the problem that the head of the screw body is easy to oxidize and rust after long-time use is solved, the screw body is more tightly and firmly connected with the limiting block through bolt fixation, loosening is difficult to occur, the cylindrical head screw can not loosen in long-time use by adding the limiting block, and the stability is improved.
In order to achieve the above purpose, the utility model provides a loosening prevention grooving cylindrical head screw which comprises a screw body, an upper nut, a lower nut, a limiting block, limiting holes, limiting nails and through holes, wherein the upper nut and the lower nut are respectively provided with the through holes for clamping the screw body, the limiting block is positioned between the upper nut and the lower nut, the two ends of the limiting block are provided with the limiting holes, and the limiting nails penetrate through the limiting holes and are arranged on the limiting block.
Preferably, the screw body comprises a screw head, a screw column and a screw tip, wherein the screw head is positioned at the upper end of the screw column, the screw tip is positioned at the lower end of the screw column, a hexagonal groove is formed in the inner surface of the screw head, an external thread is arranged on the outer surface of the screw column, and an internal thread is arranged on the inner surface of the screw column.
Preferably, bolts are arranged on two sides of the outer parts of the upper nut and the lower nut, a plurality of bolt holes matched with the bolts are formed in the limiting block, and the upper nut and the lower nut penetrate through the bolt holes through the bolts and are detachably mounted on the limiting block.
Preferably, a round hole for clamping in the screw body is formed in the limiting block near the center, and the size of the round hole is matched with the screw body.
Preferably, two ends of the limiting block are connected with protruding blocks, limiting nails are arranged on the protruding blocks, and the protruding blocks and the limiting blocks are of an integrated structure.
Preferably, the screw body sequentially penetrates through the through hole, the round hole and is installed with the upper nut, the limiting block and the lower nut, the screw head in the screw body is located inside the upper nut and is clamped with the round hole on the limiting block, and the screw column and the screw tip in the screw body are located at the lower end of the limiting block.
The utility model has the beneficial effects that: according to the utility model, the upper screw cap and the lower screw cap are arranged on the head of the screw body, so that the screw body is prevented from being oxidized and rusted easily in the outdoor long-time use process, and the service life is prolonged. Through setting up the cooperation of stopper and screw body and using, the spacing nail is installed at the both ends of stopper, can carry out further spacing after fixing the screw body, prevents to take place not hard up at the screw body in long-time use to improve the stability of connection. Through all adopting demountable installation with screw body, go up nut, lower nut, stopper, can dismantle the change comparatively convenient, can not appear the circumstances of installation difficulty then, reduce installation time, improve work efficiency.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
[ Description of the drawings ]
FIG. 1 is a front view of the structure of the loosening prevention slotted cylinder head screw of the present utility model;
FIG. 2 is a schematic front view of a stopper of the loosening prevention slotted cylinder head screw of the present utility model;
FIG. 3 is a schematic view of a screw body of the loosening prevention slotted cylinder head screw of the present utility model;
FIG. 4 is a schematic view of the screw head of the anti-loosening slotted cylinder head screw of the present utility model;
FIG. 5 is an exploded view of the loosening prevention slotted cylinder head screw of the present utility model;
FIG. 6 is a schematic view of an upper nut and a lower nut of the anti-loosening slotted cylinder head screw of the present utility model;
In the figure: 1-screw body, 2-upper nut, 3-lower nut, 4-stopper, 41-lug, 5-spacing hole, 6-spacing nail, 7-through-hole, 8-bolt, 9-bolt hole, 10-round hole, 11-screw head, 12-screw post, 13-screw point, 111-hexagonal groove, 122-external screw thread, 123-internal screw thread.
[ Detailed description ] of the invention
Referring to fig. 1, 2 and 3, the anti-loosening slotted cylindrical head screw comprises a screw body 1, an upper nut 2, a lower nut 3, a limiting block 4, a limiting hole 5, a limiting nail 6 and a through hole 7, wherein through holes 7 for clamping the screw body 1 are formed in the upper nut 2 and the lower nut 3, the limiting block 4 is positioned between the upper nut 2 and the lower nut 3, limiting holes 5 are formed in two ends of the limiting block 4, the limiting nail 6 penetrates through the limiting hole 5 and is mounted on the limiting block 4, the screw body 1 comprises a screw head 11, a screw column 12 and a screw tip 13, the screw head 11 is positioned at the upper end of the screw column 12, the screw tip 13 is positioned at the lower end of the screw column 12, a hexagonal groove 111 is formed in the inner surface of the screw head 11, external threads 122 are formed in the outer surface of the screw column 12, internal threads 123 are formed in the inner surfaces of the screw column 12, bolts 8 are formed in two sides of the outer parts of the upper nut 2 and the lower nut 3, a plurality of bolt holes 9 matched with the bolts 8 are formed in the limiting block 4, and the upper nut 2 and the lower nut 3 can be dismounted through the bolt holes 9 and the bolt holes 4.
Referring to fig. 4, 5 and 6, according to the anti-loosening slotted cylindrical head screw disclosed by the utility model, a round hole 10 for clamping a screw body 1 is formed in the limit block 4 near the center, the size of the round hole 10 is matched with that of the screw body 1, two ends of the limit block 4 are connected with a bump 41, a limit nail 6 is installed on the bump 41, the bump 41 and the limit block 4 are of an integrated structure, the screw body 1 sequentially passes through a through hole 7 and the round hole 10 to be installed with an upper screw cap 2, the limit block 4 and a lower screw cap 3, a screw head 11 in the screw body 1 is positioned in the upper screw cap 2 and is clamped with the round hole 10 on the limit block 4, and a screw column 12 and a screw tip 13 in the screw body 1 are positioned at the lower end of the limit block 4.
The working process of the utility model comprises the following steps:
According to the anti-loosening grooving cylindrical head screw disclosed by the utility model, in the working process, the screw tip 13 in the screw body 1 sequentially penetrates through the through hole 7 and the round hole 10 until the screw head 11 clamps the round hole 10, the upper screw cap 2 and the lower screw cap 3 are installed with the limiting block 4 through the bolt hole 9 by the bolt 8, the limiting block 6 is installed at two ends of the limiting block 4, the screw body 1 can be further limited after being fixed, the screw body 1 is prevented from loosening in the long-time use process, so that the connection stability is improved, the upper screw cap 2 and the lower screw cap 3 can be prevented from being oxidized and rusted easily outside the screw body 1 in the long-time outdoor use process, the service life is prolonged, the screw body 1, the upper screw cap 2, the lower screw cap 3 and the limiting block 4 can be detached and replaced conveniently by adopting detachable installation, the installation difficulty is avoided, the installation time is shortened, and the working efficiency is improved.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (6)
1. Locking fluting cylinder head screw that moves, its characterized in that: including screw body (1), go up nut (2), lower nut (3), stopper (4), spacing hole (5), spacing nail (6), through-hole (7), go up nut (2) and lower nut (3) inside all offer and be used for screw body (1) card to go into through-hole (7), stopper (4) are located between last nut (2) and lower nut (3), spacing hole (5) have been seted up at the both ends of stopper (4), spacing nail (6) run through spacing hole (5) and install on stopper (4).
2. The anti-loosening slotted cylinder head screw as defined in claim 1, wherein: screw body (1) include screw head (11), screw post (12), screw point (13), screw head (11) are located the upper end of screw post (12), screw point (13) are located the lower extreme of screw post (12), hexagonal groove (111) have been seted up to screw head (11) internal surface, screw post (12) surface is equipped with external screw thread (122), screw post (12) internal surface is equipped with internal screw thread (123).
3. The anti-loosening slotted cylinder head screw as defined in claim 1, wherein: the upper screw cap (2) and the lower screw cap (3) are respectively provided with a bolt (8), a plurality of bolt holes (9) matched with the bolts (8) are formed in the limiting block (4), and the upper screw cap (2) and the lower screw cap (3) penetrate through the bolt holes (9) through the bolts (8) and are detachably mounted with the limiting block (4).
4. The anti-loosening slotted cylinder head screw as defined in claim 1, wherein: a round hole (10) for clamping in the screw body (1) is formed in the limiting block (4) near the center, and the size of the round hole (10) is matched with that of the screw body (1).
5. The anti-loosening slotted cylinder head screw as defined in claim 1, wherein: two ends of the limiting block (4) are connected with protruding blocks (41), limiting nails (6) are arranged on the protruding blocks (41), and the protruding blocks (41) and the limiting block (4) are of an integrated structure.
6. The loosening prevention slotted cylinder head screw as defined in any one of claims 1-5, wherein: screw body (1) pass through-hole (7), round hole (10) in proper order and install with last nut (2), stopper (4), lower nut (3), screw head (11) in screw body (1) are located the inside and joint mutually with round hole (10) on stopper (4) of last nut (2), screw post (12) and screw point (13) in screw body (1) are located stopper (4) lower extreme.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322893156.4U CN221033564U (en) | 2023-10-27 | 2023-10-27 | Anti-loosening slotted cylindrical head screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322893156.4U CN221033564U (en) | 2023-10-27 | 2023-10-27 | Anti-loosening slotted cylindrical head screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221033564U true CN221033564U (en) | 2024-05-28 |
Family
ID=91181355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322893156.4U Active CN221033564U (en) | 2023-10-27 | 2023-10-27 | Anti-loosening slotted cylindrical head screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221033564U (en) |
-
2023
- 2023-10-27 CN CN202322893156.4U patent/CN221033564U/en active Active
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