CN211550202U - Plum flat head screw - Google Patents
Plum flat head screw Download PDFInfo
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- CN211550202U CN211550202U CN201922215427.4U CN201922215427U CN211550202U CN 211550202 U CN211550202 U CN 211550202U CN 201922215427 U CN201922215427 U CN 201922215427U CN 211550202 U CN211550202 U CN 211550202U
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- 230000000670 limiting effect Effects 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a plum blossom flat head screw, which relates to the technical field of mechanical parts, and the key point of the technical proposal is that the screw comprises a screw head and a rod body fixed on the screw head, wherein the screw head comprises a fixed part fixedly connected with the rod body and a rotating part rotatably connected with the fixed part; a plurality of sliding grooves are formed in one side, close to the rotating part, of the fixing part, a fixing plate is fixed on the fixing part, and through holes are formed in the positions, overlapped with the sliding grooves, of the fixing plate; the bottom end of the rotating part is fixed with a limiting ring, the outer diameter of the limiting ring is the same as that of the rotating part and is larger than the radius of the fixing plate, the inner diameter of the limiting ring is smaller than that of the fixing plate, and a fixing column capable of sliding in the sliding groove is fixed inside the rotating part. The utility model discloses can reduce the screw because of the touching of spiral shell head produces not hard up, increase the effect of screwed connection's stability.
Description
Technical Field
The utility model relates to a machinery accessories technical field especially relates to a plum blossom crew cut screw.
Background
The screw is widely applied to the current production and life as a connecting accessory; because the connecting effect is good and the disassembly is convenient, the connecting structure is generally accepted by people. After the screw reconnection was accomplished, the spiral shell head exposes in the outward appearance of object, and the object is at the in-process that uses, because of the diverse of in service behavior, at the in-process that uses, probably touches the surface of spiral shell head, and the screw that connects when touching probably produces not hard up to screwed connection's stability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a plum blossom crew cut screw can reduce the screw because of the touching of spiral shell head produces not hard up, increases screwed connection's stability.
In order to achieve the above purpose, the utility model provides a following technical scheme: a kind of plum blossom flat head screw, including the spiral shell head and body of rod fixed on spiral shell head, the said spiral shell head includes the fixed part fixedly connected with body of rod and rotates the turning part rotatably connected with fixed part; a plurality of sliding grooves are formed in one side, close to the rotating part, of the fixing part, a fixing plate is fixed on the fixing part, and through holes are formed in the positions, overlapped with the sliding grooves, of the fixing plate; the bottom end of the rotating part is fixed with a limiting ring, the outer diameter of the limiting ring is the same as that of the rotating part and is larger than the radius of the fixing plate, the inner diameter of the limiting ring is smaller than that of the fixing plate, and a fixing column capable of sliding in the sliding groove is fixed inside the rotating part.
By adopting the technical scheme, the rotating part is rotatably connected with the fixed part, and when the fixed part needs to be rotated, the fixed column is inserted into the limiting groove, and the fixed part is driven to rotate by the fixed column; the outside of spout is arranged in to ordinary fixed column, and the fixed part can not be driven in the rotation of rotation portion, even the spiral shell head receives the touching also can not drive the screw and rotate, increases screwed connection's stability.
The utility model discloses further set up to: the width of through-hole is less than the width of spout, and the centre of through-hole is provided with the width and the same clearing hole of spout radius, the one end that the fixed column is close to the fixed part is fixed with the stopper, and the radius of stopper is less than the width of clearing hole and is greater than the width of through-hole.
Through adopting above-mentioned technical scheme, when screw in or screw out the screw, the fixed column rotates the tip of spout, and the fixed column is difficult to extract from the spout under the limiting displacement of stopper this moment, reduces to make the fixed column follow the condition appearance that deviates from in the spout at screw in or screw out, the screw in and the screw out of being convenient for.
The utility model discloses further set up to: and the edge of the limiting block close to the fixed part is provided with a round angle.
Through adopting above-mentioned technical scheme, the fillet can reduce the stopper and be close to the sectional area of fixed part one side, and the stopper of being convenient for passes the clearing hole.
The utility model discloses further set up to: an elastic piece is arranged in the rotating part and drives the rotating part to move in the direction away from the fixing part.
Through adopting above-mentioned technical scheme, the elastic component drives rotation portion to the direction motion of keeping away from the fixed part for rotation portion and fixed part separation when placing, the condition that the fixed column entered into in the spout appears when reducing to place, stability when increasing to place.
The utility model discloses further set up to: the circle center of the fixed part is provided with a placing groove, and the elastic part comprises a guide pillar which is fixed at the circle center of the rotating part and can be inserted into the placing groove and a spring which is sleeved on the guide pillar.
Through adopting above-mentioned technical scheme, the guide pillar increases the gliding stability of rotating part.
The utility model discloses further set up to: the side wall of the rotating part is provided with a rotating hole.
Through adopting above-mentioned technical scheme, when the recess wearing and tearing subassembly of dismantling was difficult to with the recess cooperation, can insert the dead lever and rotate downtheholely, be convenient for dismantle the spiral shell head.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the rotating part is rotatably connected with the fixed part, and when the fixed part needs to be rotated, the fixed column is inserted into the limiting groove, and the fixed part is driven to rotate by the fixed column; usually, the fixed column is arranged on the outer side of the sliding chute, the rotation of the rotating part cannot be transmitted to the fixed part, and the screw cannot be driven to rotate even if the screw head is touched, so that the stability of screw connection is improved;
2. when the screw is screwed in or out, the fixing column rotates to the end part of the sliding chute, and at the moment, the fixing column is difficult to pull out from the sliding chute under the limiting action of the limiting block, so that the situation that the fixing column is separated from the sliding chute when the screw is screwed in or out is reduced, and the screw is convenient to screw in and screw out;
3. the fillet can reduce the sectional area that the stopper is close to fixed part one side, and the stopper of being convenient for passes the clearing hole.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is a schematic view showing the overall structure of the screw head;
fig. 3 is a schematic view showing a structure of the rotating part.
In the figure: 1. a screw head; 11. a pocket; 2. a rod body; 3. a fixed part; 31. a chute; 32. a fixing plate; 321. a through hole; 322. through the hole; 33. a placement groove; 4. a rotating part; 41. rotating the hole; 42. a limiting ring; 43. fixing a column; 44. a limiting block; 441. round corners; 45. a guide post; 46. a spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): a plum blossom flat head screw, see figure 1, includes the spiral shell head 1 and fixes the body of rod 2 on spiral shell head 1. The end of the rod 2 away from the screw head 1 is formed with a recess 11, the recess 11 is matched with a screwing tool (generally a screwdriver), and the recess 11 is plum blossom-shaped. The quincunx pockets 11 can withstand higher torques and reduce damage to the screw head and/or the tool.
Referring to fig. 2 and 3, the rod comprises a fixed portion 3 fixedly connected with the rod body 2 and a rotating portion 4 rotatably connected with the fixed portion 3.
A plurality of sliding grooves 31 (4 in the figure) are formed in one side of the fixed part 3 close to the rotating part 4, and the sliding grooves 31 are arc-shaped; the circle center of the fixing part 3 is also provided with a placing groove 33. The fixing portion 3 is fixed with a fixing plate 32, and the radius of the fixing plate 32 is larger than that of the fixing portion 3. A through hole 321 is opened at the position where the fixing plate 32 coincides with the chute 31, the center line of the through hole 321 coincides with the center line of the chute 31, and the width of the through hole 321 is smaller than the width of the chute 31. The through hole 322 having the same width as the radius of the slide groove 31 is provided in the middle of the through hole 321.
The side wall of the rotating part 4 is provided with a rotating hole 41. The bottom end of the rotating part 4 is fixed with a limiting ring 42, the outer diameter of the limiting ring 42 is the same as that of the rotating part and is larger than the radius of the fixing plate 32, and the inner diameter of the limiting ring 42 is smaller than that of the fixing plate 32, so that the fixing plate 32 can slide in the rotating part 4 and is difficult to slide out of the rotating part 4. Fixed columns 43 with the same number as the sliding grooves 31 are fixed inside the rotating part 4, and the radius of each fixed column 43 is smaller than the width of the through hole 321; the fixing column 43 is fixed with a limiting block 44 at one end close to the fixing part 3, and the radius of the limiting block 44 is smaller than the width of the passing hole 322 and larger than the width of the passing hole 321. The edge of the stopper 44 near the fixing portion 3 is provided with a rounded corner 441. A guide post 45 slidably connected to the placement groove 33 is fixed to the rotating portion 4, and a spring 46 is sleeved on the guide post 45. Both ends of the spring 46 are respectively abutted against the fixed plate 32 and the rotating portion 4, and the spring 46 drives the rotating portion 4 to move in a direction away from the fixed portion 3.
The using method comprises the following steps: when the screw is rotated, the limiting block 44 of the fixing column 43 passes through the through hole 322 and is inserted into the sliding groove 31, the rotating portion is screwed at the moment, the fixing column 43 is abutted to the sliding groove 31, the rotating portion 4 rotates to drive the fixing portion 3 to rotate, and therefore the screw is driven to rotate. After the screw rotates, the rotating portion 4 rotates reversely, so that the fixing post 43 is separated from the sliding slot 31, at this time, the rotating portion 4 is driven by the spring 46 to keep a distance from the fixing portion 3, and the rotation of the rotating portion 4 cannot drive the fixing portion 3 and the rod body 2 to rotate. Therefore, when the screw head 1 is touched, the rotation of the rod body 2 can be reduced, the looseness of the screw caused by the touch of the screw head is reduced, and the stability of screw connection is improved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (6)
1. The utility model provides a plum blossom flat head screw, includes spiral shell head (1) and fixes body of rod (2) on spiral shell head (1), its characterized in that: the screw head (1) comprises a fixed part (3) fixedly connected with the rod body (2) and a rotating part (4) rotatably connected with the fixed part (3); a plurality of sliding grooves (31) are formed in one side, close to the rotating part (4), of the fixing part (3), a fixing plate (32) is fixed on the fixing part (3), and through holes (321) are formed in the position, overlapped with the sliding grooves (31), of the fixing plate (32); the bottom end of the rotating part (4) is fixed with a limiting ring (42), the outer diameter of the limiting ring (42) is the same as that of the rotating part (4) and is larger than the radius of the fixing plate (32), the inner diameter of the limiting ring (42) is smaller than that of the fixing plate (32), and a fixing column (43) capable of sliding in the sliding groove (31) is fixed inside the rotating part (4).
2. The grub screw of claim 1, wherein: the width of the through hole (321) is smaller than that of the sliding chute (31), a through hole (322) with the width being the same as that of the radius of the sliding chute (31) is formed in the middle of the through hole (321), a limiting block (44) is fixed to one end, close to the fixing portion (3), of the fixing column (43), and the radius of the limiting block (44) is smaller than that of the through hole (322) and larger than that of the through hole (321).
3. The grub screw of claim 2, wherein: and a round corner (441) is arranged at the edge of the limiting block (44) close to the fixing part (3).
4. The grub screw of claim 1, wherein: an elastic piece is arranged in the rotating part (4) and drives the rotating part (4) to move towards the direction away from the fixing part (3).
5. The grub screw of claim 4, wherein: the circle center of the fixed part (3) is provided with a placing groove (33), and the elastic part comprises a guide pillar (45) which is fixed at the circle center of the rotating part (4) and can be inserted into the placing groove (33) and a spring (46) sleeved on the guide pillar (45).
6. The grub screw of claim 1, wherein: the side wall of the rotating part (4) is provided with a rotating hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215427.4U CN211550202U (en) | 2019-12-05 | 2019-12-05 | Plum flat head screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922215427.4U CN211550202U (en) | 2019-12-05 | 2019-12-05 | Plum flat head screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211550202U true CN211550202U (en) | 2020-09-22 |
Family
ID=72505578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922215427.4U Active CN211550202U (en) | 2019-12-05 | 2019-12-05 | Plum flat head screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211550202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754052A (en) * | 2022-04-22 | 2022-07-15 | 上海华育金属有限公司 | Novel screw |
-
2019
- 2019-12-05 CN CN201922215427.4U patent/CN211550202U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754052A (en) * | 2022-04-22 | 2022-07-15 | 上海华育金属有限公司 | Novel screw |
| CN114754052B (en) * | 2022-04-22 | 2023-07-25 | 上海华育金属有限公司 | Novel screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Plum blossom flat head screw Effective date of registration: 20231218 Granted publication date: 20200922 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: Shanghai Huayu metal Co.,Ltd. Registration number: Y2023310000875 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |