CN217328028U - Anti-loosening double-section screw countersunk head screw - Google Patents

Abstract

The utility model discloses a locking two-section silk countersunk head screw, including screw rod and slot subassembly, the upper end of screw rod is connected with the nut, the slot subassembly is seted up in the upper wall of nut, and the slot subassembly includes main slot and spout, two walls are provided with the spout about the inside of main slot, and two walls all are provided with the extension subassembly around the main slot, the extension subassembly includes movable piece and spring two, and the inside of movable piece is provided with spring two, the movable piece is elastic connection with spring two, and the movable piece is sliding connection with the spout. This locking two-section silk countersunk screw compares with current countersunk screw, through the back-and-forth movement of movable plate on the spout, changes the shape of master recess, and the different instrument of the use of being convenient for carries out the dismouting, can block the position of inside fastening through rotor plate extrusion arc, prevents not hard up, carries out the secondary through the fastening groove and is fixed with being connected of resettlement groove, improves the fastening of screw.

Description

Anti-loosening double-section screw countersunk head screw

Technical Field

The utility model relates to a screw technical field specifically is a locking two-section screw countersunk screw.

Background

The countersunk head screw is also called a countersunk head screw and is also called a flat machine screw, and is a building part, the countersunk head screw can sink to the lower surface to enable the surface to be flat, a countersunk hole needs to be drilled at the corresponding position of the countersunk head for a harder object, and in short, the countersunk head is the head of the screw which can keep the surface flat after being installed.

In the use process of the existing countersunk head screw, the screw twisting mode is single, the used tool has uniqueness, corresponding fastening or loosening treatment cannot be performed on the screw at certain moments, the working efficiency is easily influenced, and technical innovation is performed on the basis of the existing countersunk head screw according to the conditions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a locking double-section screw countersunk screw to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a locking two-section silk countersunk head screw, includes screw rod and slot subassembly, the upper end of screw rod is connected with the nut, the upper wall at the nut is seted up to the slot subassembly, and the slot subassembly includes main slot and spout, two walls are provided with the spout about the inside of main slot, and two walls all are provided with the extension subassembly around the main slot, the extension subassembly includes movable piece and spring two, and the inside of movable piece is provided with spring two, the movable piece is elastic connection with spring two, and the movable piece is sliding connection with the spout.

Further, the inside upper end of screw rod is provided with fastening components, and fastening components includes fastening groove and stopper, both ends all are provided with the stopper about the inside in fastening groove.

Furthermore, fastening components still includes extending groove and arc, the extending groove has all been seted up to two walls around the fastening groove, and both ends all are provided with the arc around the inside of fastening groove.

Furthermore, the inside middle part in fastening groove is provided with stirs the subassembly, and stirs the subassembly and include poker rod and rotor plate, the lower extreme welding of poker rod has the rotor plate.

Furthermore, the outside of the poke rod is provided with a first spring, and the upper end of the poke rod is connected with an auxiliary recess.

Furthermore, the outside upper end of screw rod is provided with the protection piece, and the outside lower extreme of screw rod is connected with coupling assembling.

Further, coupling assembling includes nut, resettlement groove and slipmat, the upper wall of nut is connected with the slipmat, and the resettlement groove has been seted up to the inside of nut.

Compared with the prior art, the beneficial effects of the utility model are that:

the shape of the main concave groove is changed through the back-and-forth movement of the movable sheet, so that different tools can be conveniently used for dismounting, the inner fastening part can be clamped through extruding the arc-shaped plate by the rotating sheet, the loosening is prevented, the secondary fixation is carried out through the connection of the fastening groove and the placing groove, and the fastening performance of the screw is improved;

1. the utility model discloses a setting of poker rod, the rotor, the fastening groove, the stopper, the extension groove, the arc, main recess and auxiliary recess, when needing to fasten the object, through rotating main recess earlier, make the screw reach the assigned position, can drive auxiliary recess and move about when rotating main recess, through the poker rod this moment, drive the rotor card on the stopper, can not influence the fastening work of screw with this, after the screw reaches the assigned position, through the reverse rotation auxiliary recess, let the rotor extrude the arc, let one end of arc stretch out the fastening groove outside through the extension groove, with this reach the effect of blocking the outside fastening object, can prevent that the fastening object from taking place to become flexible in the use;

2. the utility model discloses a screw rod, protection piece, fastening groove, nut, resettlement groove and slipmat's setting, through the nut of rotating on the screw rod, let protection piece and slipmat closely laminate, because both are made through the rubber material, take place deformation when the extrusion, can play the locking of certain effect not hard up, rethread fastening groove can insert the resettlement groove, let the screw fixation glue of placing in the resettlement inslot spill over, then let fastening groove and resettlement groove between closely link to each other, increase the fixed effect of screw with this, improve the fastening of screw;

3. the utility model discloses a movable plate, spring two, the setting of main slot and spout, main slot is a cross slot, need cooperate cross screwdriver to use, the rethread sets up the movable plate, extrude spring two and slide on the spout through removing the movable plate, let a cross recess of main slot become long, can use through flat style of calligraphy screwdriver this moment, through removing the movable plate, can still use when main slot notch is destroyed, the use tool that can effectual selection screw elasticity through this equipment, can both facilitate the use under the different situation of being convenient for.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of a locking double-section countersunk head screw of the present invention;

FIG. 2 is a schematic top view of a locking double-section countersunk head screw according to the present invention;

fig. 3 is the utility model relates to a local spatial structure schematic diagram of locking double-section screw countersunk head screw fastening groove.

In the figure: 1. a screw; 2. a nut; 3. the component is stirred; 301. a poke rod; 302. a rotating sheet; 4. a first spring; 5. a protective sheet; 6. a fastening assembly; 601. a fastening groove; 602. a limiting block; 603. an extension groove; 604. an arc-shaped plate; 7. a connecting assembly; 701. a nut; 702. a placing groove; 703. a non-slip mat; 8. an extension assembly; 801. a movable plate; 802. a second spring; 9. a dimple assembly; 901. a main recess; 902. a chute; 10. a sub-dimple.

Detailed Description

As shown in fig. 1-2, a locking double-section countersunk head screw includes a screw 1 and a socket assembly 9, the upper end of the screw 1 is connected with a nut 2, the socket assembly 9 is arranged on the upper wall of the nut 2, the socket assembly 9 includes a main socket 901 and a sliding slot 902, the left and right walls of the main socket 901 are provided with the sliding slots 902, the front and back walls of the main socket 901 are provided with extension assemblies 8, each extension assembly 8 includes a movable plate 801 and a spring two 802, the movable plate 801 is provided with the spring two 802, the movable plate 801 is elastically connected with the spring two 802, the movable plate 801 is slidably connected with the sliding slot 902, the main socket 901 is a cross socket, and is used in cooperation with a cross screwdriver, and by arranging the movable plate 801, the movable plate 801 presses the spring two 802 and slides on the sliding slot, so that a cross-shaped recess of the main socket 902 is lengthened, at the moment, the screwdriver can be used through a flat straight screwdriver, the screwdriver can still be used when the notch of the main recess 901 is damaged by moving the movable plate 801, a tool for using the tightness of the screw can be effectively selected through the screwdriver, the screwdriver can be conveniently used under different conditions, the protection plate 5 is arranged at the upper end of the outer part of the screw 1, the lower end of the outer part of the screw 1 is connected with the connecting assembly 7, the connecting assembly 7 comprises a nut 701, a placing groove 702 and an anti-slip pad 703, the anti-slip pad 703 is connected to the upper wall of the nut 701, the placing groove 702 is formed in the nut 701, the protection plate 5 and the anti-slip pad 703 are tightly attached by rotating the nut 701 on the screw 1, the protection plate 5 and the anti-slip pad 703 are made of rubber materials, the protection plate and the anti-slip pad deform during extrusion, play a certain role in anti-loosening, and can be inserted into the placing groove 702 through the fastening groove 601, so that the screw fixing glue placed in the placing groove 702 overflows, then, the fastening slot 601 is tightly connected with the placing slot 702, so as to increase the fixing effect of the screw and improve the fastening performance of the screw.

As shown in fig. 1 and 3, a fastening assembly 6 is disposed at the upper end of the interior of the screw rod 1, the fastening assembly 6 includes a fastening groove 601 and a limiting block 602, the limiting block 602 is disposed at both left and right ends of the interior of the fastening groove 601, the fastening assembly 6 further includes an extending groove 603 and an arc plate 604, the front and rear walls of the fastening groove 601 are both provided with the extending groove 603, the front and rear ends of the interior of the fastening groove 601 are both provided with the arc plates 604, the middle portion of the interior of the fastening groove 601 is provided with a toggle assembly 3, the toggle assembly 3 includes a toggle rod 301 and a rotating plate 302, the lower end of the toggle rod 301 is welded with the rotating plate 302, the exterior of the toggle rod 301 is provided with a first spring 4, the upper end of the toggle rod 301 is connected with an auxiliary recess 10, when an object needs to be fastened, the screw reaches a designated position by rotating the main recess 901 first, the auxiliary recess 10 is driven to move when the main recess 901 is rotated, at this time, the toggle rod 301, drive rotor plate 302 card on stopper 602 to this can not influence the fastening work of screw, after the screw reached the assigned position, through antiport auxiliary recess 10, let rotor plate 302 extrude arc 604, let the one end of arc 604 stretch out fastening groove 601 outside through extension groove 603, reach the effect of blocking outside fastening object with this, can prevent that fastening object from taking place not hard up in the use.

The working principle is as follows: when the anti-loose double-section screw countersunk head screw is used, firstly, when an object is fastened, the main recess 901 is rotated firstly, the auxiliary recess 10 is driven to move at this time, the rotating sheet 302 is driven to be clamped on the limiting block 602, so that the fastening work of the screw cannot be influenced, after the screw reaches a designated position, the first spring 4 is extruded by reversely rotating the auxiliary recess 10, the rotating sheet 302 is enabled to extrude the arc-shaped plate 604, the other end of the arc-shaped plate 604 extends out of the fastening groove 601 through the extending groove 603, so as to clamp an external fastening object, so that the fastening object can be prevented from loosening in the using process, the protective sheet 5 and the anti-slip mat are tightly attached by rotating the nut 701 on the screw rod 1, because both are made of rubber materials, the anti-loose screw 703 can play a certain role due to deformation during extrusion, and then can be inserted into the installation groove 702 through the fastening groove 601, let the screw fixation who places in the inside of resettlement groove 702 glue and spill over, then let between fastening groove 601 and the resettlement groove 702 closely link to each other, through this dual effect, improve the fastening nature of screw, main recess 901 is a cross recess, need cooperate cross screwdriver to use, the rethread sets up movable plate 801, extrude spring two 802 and slide on spout 902 through removing movable plate 801, a recess that lets main recess 901 cross becomes long, can use through flat style of calligraphy screwdriver this moment, through removing movable plate 801, can still can use when main recess 901 notch is destroyed, with this can both facilitate the use under the different situation, this is exactly the theory of operation of this locking double-section silk countersunk head screw.

Claims (7)

1. The utility model provides a locking two-section silk countersunk head screw, includes screw rod (1) and recess subassembly (9), its characterized in that, the upper end of screw rod (1) is connected with nut (2), the upper wall in nut (2) is seted up in recess subassembly (9), and recess subassembly (9) include main recess (901) and spout (902), two walls are provided with spout (902) about the inside of main recess (901), and two walls all are provided with around main recess (901) and extend subassembly (8), it includes movable plate (801) and spring two (802) to extend subassembly (8), and the inside of movable plate (801) is provided with spring two (802), movable plate (801) are elastic connection with spring two (802), and movable plate (801) are sliding connection with spout (902).

2. The anti-loosening double-section countersunk head screw according to claim 1, characterized in that a fastening assembly (6) is arranged at the upper end of the inside of the screw rod (1), the fastening assembly (6) comprises a fastening groove (601) and a limiting block (602), and the limiting block (602) is arranged at each of the left and right ends of the inside of the fastening groove (601).

3. The anti-loosening double-section countersunk head screw according to claim 2, characterized in that the fastening assembly (6) further comprises an extension groove (603) and arc plates (604), the extension groove (603) is formed in each of the front wall and the rear wall of the fastening groove (601), and the arc plates (604) are arranged at each of the front end and the rear end of the inside of the fastening groove (601).

4. The anti-loosening double-section screw countersunk head screw according to claim 2, characterized in that a poking assembly (3) is arranged in the middle of the inner part of the fastening groove (601), the poking assembly (3) comprises a poking rod (301) and a rotating sheet (302), and the rotating sheet (302) is welded at the lower end of the poking rod (301).

5. The anti-loose double-section screw countersunk head screw according to claim 4, characterized in that a first spring (4) is arranged outside the poke rod (301), and a sub-recess (10) is connected to the upper end of the poke rod (301).

6. The anti-loosening double-section screw countersunk head as claimed in claim 1, wherein a protective plate (5) is arranged at the outer upper end of the screw rod (1), and a connecting assembly (7) is connected to the outer lower end of the screw rod (1).

7. The anti-loose double-section screw countersunk head screw according to claim 6, characterized in that the connecting assembly (7) comprises a nut (701), a placing groove (702) and a non-slip pad (703), the non-slip pad (703) is connected to the upper wall of the nut (701), and the placing groove (702) is opened inside the nut (701).

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