CN220015790U - Injection-free square head limit bolt - Google Patents
Injection-free square head limit bolt Download PDFInfo
- Publication number
- CN220015790U CN220015790U CN202320990094.6U CN202320990094U CN220015790U CN 220015790 U CN220015790 U CN 220015790U CN 202320990094 U CN202320990094 U CN 202320990094U CN 220015790 U CN220015790 U CN 220015790U
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- China
- Prior art keywords
- screw
- bolt
- cardboard
- double
- head
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- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 239000002991 molded plastic Substances 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- Connection Of Plates (AREA)
Abstract
The utility model provides a square head limit bolt exempts from to mould plastics, includes the spiral shell head and the screw rod of being connected thereof, be equipped with the screw thread on the screw rod outer wall, be equipped with the double-screw bolt between spiral shell head and the screw rod, slide on the double-screw bolt and be provided with the cardboard, the cardboard is located the lower terminal surface of cardboard when the double-screw bolt is bottommost and extends to the screw thread department of screw rod, form the draw-in groove of bolt installation between spiral shell head and the cardboard, the lower surface of spiral shell head and the upper surface of cardboard all are provided with a plurality of anticreep piece around the double-screw bolt, through the draw-in groove between cardboard and the spiral shell head with the bolt joint on the work piece, save the process that the bolt moulded plastics, when using, nut and installed part produce the pulling force to promote the cardboard to reciprocate on the double-screw bolt for cardboard and spiral shell head firmly pressfitting on the work piece, applicable use with the work piece of different thickness, the anticreep piece of cooperation makes it more firm with the work piece connection.
Description
Technical Field
The utility model relates to a bolt, in particular to an injection-free square head limit bolt.
Background
The conventional limit bolt is required to be connected with the automobile frame or the headlight after injection molding by the mounting frame when in use, and the mode is complex in procedure and unfavorable for subsequent replacement of the bolt.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provides the injection-free square head limit bolt which is simple in structure, reasonable in design, convenient to use and firm in installation.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a square head limit bolt exempts from to mould plastics, includes the spiral shell head and the screw rod of being connected thereof, be equipped with the screw thread on the screw rod outer wall, be equipped with the double-screw bolt between spiral shell head and the screw rod, it is provided with the cardboard to slide on the double-screw bolt, the cardboard is located the lower terminal surface of cardboard when the double-screw bolt is located the lower extreme and extends to the screw thread department of screw rod, form the draw-in groove of bolt installation between spiral shell head and the cardboard, the lower surface of spiral shell head and the upper surface of cardboard all are provided with a plurality of anticreep piece around the double-screw bolt. By adopting the structure, the bolt is clamped on the workpiece through the clamping groove between the clamping plate and the screw head, the procedure of bolt injection molding is omitted, and when the clamping plate is used, the clamping plate is pushed to move upwards on the stud by pulling force generated by the nut and the mounting piece on the screw rod, so that the clamping plate and the screw head are firmly pressed on the workpiece, the clamping plate can be applied to workpieces with different thicknesses, and the clamping plate and the screw head are matched with the anti-falling block, so that the clamping plate is firmly connected with the workpiece.
Preferably, the surface of the stud is covered with an anti-slip layer, and the lower surface of the screw head and the upper surface of the clamping plate are both provided with shock absorption layers. By adopting the structure, the anti-slip layer can improve the friction between the bolt and the workpiece clamping groove, prevent the bolt from falling off from the workpiece clamping groove, and the shock-absorbing layer can not only enhance the connection firmness between the bolt and the workpiece, but also improve the shock-absorbing effect and avoid damaging the workpiece.
Preferably, the diameter of the stud is larger than that of the screw, and a transition section of an inward concave circular angle structure is arranged at the joint of the upper end of the screw and the stud.
Preferably, a plurality of sliding grooves are formed in the side wall of the stud along the axial direction of the stud, a plurality of sliding blocks are arranged at positions, corresponding to the sliding grooves, of the inner end of the clamping plate, and the stud is in sliding connection with the clamping plate through the sliding grooves and the sliding blocks. By adopting the structure, the clamping plate is ensured to slide on the stud more smoothly through the matching of the sliding groove and the sliding block.
Preferably, the screw head and the clamping plate are square structures, and the screw head, the stud and the screw are integrally formed by aluminum alloy. By adopting the structure, the square structure can effectively prevent the bolt from rotating in the market with the nut in a screwed connection mode, and the aluminum alloy can also ensure the integral strength and corrosion resistance of the bolt, so that the service life of the bolt is prolonged.
The utility model has the advantages of simple structure, reasonable design, convenient use, firm installation and the like.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a front structural cross-sectional view of an embodiment of the present utility model;
fig. 3 is a side view in cross-section of an embodiment of the present utility model.
In the figure: 1. a screw head; 2. a screw; 3. a thread; 4. a stud; 5. a clamping plate; 6. a clamping groove; 7. an anti-falling block; 8. an anti-slip layer; 9. a shock absorbing layer; 10. a transition section; 11. a chute; 12. a sliding block.
Detailed Description
The technical scheme of the utility model is further specifically described below through specific embodiments and with reference to the accompanying drawings.
Examples:
the utility model provides a square head limit bolt exempts from to mould plastics, includes screw head 1 and the screw rod 2 of being connected with it as shown in fig. 1-3, be equipped with screw thread 3 on the screw rod 2 outer wall, be equipped with double-screw bolt 4 between screw head 1 and the screw rod 2, the diameter of double-screw bolt 4 is greater than the diameter of screw rod 2, the upper end of screw rod 2 is equipped with the changeover portion 10 of indent round angle structure with the junction of double-screw bolt 4, slide on the double-screw bolt 4 and be provided with cardboard 5, cardboard 5 is located the lower terminal surface of cardboard 5 and extends to the screw thread 3 department of screw rod 2 when the screw rod 4 is located the lower extreme, form draw-in groove 6 of bolt installation between screw head 1 and the cardboard 5, through the draw-in groove 6 between cardboard 5 and the screw head 1 with the bolt joint on the work piece, save the process of bolt moulding plastics, when using, nut and installed part produce pulling force to promote cardboard 5 on the double-screw bolt 4 for the upper shift of work piece, make cardboard 5 and screw head 1 firmly pressfitting on the work piece, applicable work piece with different thickness, the upper surface of cardboard 1 and the upper surface of cardboard are provided with a plurality of blocks 7 around the upper surface of cardboard 5 and the top surface 7 and a plurality of the slider 11 and are equipped with a plurality of slide 11 and are more than slide 11, and are the side wall 11 through the slider 11, and are the side-slip-shaped, are the side-shaped, and are equipped with a plurality of the slide 11 and are more than slide 11 and are connected with the slide 11.
The surface of double-screw bolt 4 covers and has skid resistant course 8, and skid resistant course 8 can improve the friction between bolt and the work piece draw-in groove 6, avoids the bolt to drop from work piece draw-in groove 6, the lower surface of screw head 1 and the upper surface of cardboard 5 all are equipped with buffer layer 9, and buffer layer 9 not only can strengthen the firm in connection nature of bolt and work piece, but also can improve the shock attenuation effect, avoids damaging the work piece.
The screw head 1 and the clamping plate 5 are square structures, the square structures can effectively prevent the bolts from rotating in the market with the nuts in a screwed connection mode, the screw head 1, the stud 4 and the screw 2 are integrally formed by aluminum alloy, the aluminum alloy can also ensure the integral strength and corrosion resistance of the bolts, and the service life of the bolts is prolonged.
The above-described embodiment is only a preferred embodiment of the present utility model, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (5)
1. The utility model provides a square head limit bolt exempts from to mould plastics, includes screw head (1) and screw rod (2) rather than being connected, be equipped with screw thread (3), its characterized in that on screw rod (2) outer wall: be equipped with double-screw bolt (4) between spiral shell head (1) and screw rod (2), it is provided with cardboard (5) to slide on double-screw bolt (4), the lower terminal surface of cardboard (5) extends to screw rod (2) screw thread (3) department when cardboard (5) are located double-screw bolt (4) lower extreme, form draw-in groove (6) of bolt installation between spiral shell head (1) and cardboard (5), the lower surface of spiral shell head (1) and the upper surface of cardboard (5) all are provided with a plurality of anticreep piece (7) around double-screw bolt (4).
2. The injection-free square head limit bolt according to claim 1, wherein: the surface of double-screw bolt (4) is covered with anti-skidding layer (8), the lower surface of spiral shell head (1) and the upper surface of cardboard (5) all are equipped with buffer layer (9).
3. The injection-free square head limit bolt according to claim 1, wherein: the diameter of the stud (4) is larger than that of the screw (2), and a transition section (10) with an inward concave rounded angle structure is arranged at the joint of the upper end of the screw (2) and the stud (4).
4. The injection-free square head limit bolt according to claim 1, wherein: the side wall of the stud (4) is axially provided with a plurality of sliding grooves (11), the inner end of the clamping plate (5) is provided with a plurality of sliding blocks (12) corresponding to the sliding grooves (11), and the stud (4) is in sliding connection with the clamping plate (5) through the sliding grooves (11) and the sliding blocks (12).
5. The injection-free square head limit bolt according to claim 1, wherein: the screw head (1) and the clamping plate (5) are square structures, and the screw head (1), the stud (4) and the screw (2) are integrally formed by aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320990094.6U CN220015790U (en) | 2023-04-27 | 2023-04-27 | Injection-free square head limit bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320990094.6U CN220015790U (en) | 2023-04-27 | 2023-04-27 | Injection-free square head limit bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220015790U true CN220015790U (en) | 2023-11-14 |
Family
ID=88686124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320990094.6U Active CN220015790U (en) | 2023-04-27 | 2023-04-27 | Injection-free square head limit bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220015790U (en) |
-
2023
- 2023-04-27 CN CN202320990094.6U patent/CN220015790U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |