CN218031003U - Prevent accurate screw of fracture - Google Patents

Abstract

The utility model relates to a screw technical field, concretely relates to prevent accurate screw of fracture, which comprises a wood board, the mounting panel, screw body and fixed block, the mounting panel has the screw hole, the one end of screw body runs through the plank, and with the mutual adaptation of screw hole, the other end at the screw body is installed to the fixed block, the one end of screw body has the through-hole, the through-hole has first screw thread, still include the drilling subassembly, the drilling subassembly includes first cone, cylinder and trompil unit, cylinder and first cone fixed connection, cylindrical outward appearance wall has the second screw thread, the below at first cone is installed to the trompil unit, the both sides of first cone have the recess respectively, the rotatable first cone of user, and then take off whole drilling subassembly, and then avoid taking place because long and thin tip and accidental injury's the condition to the user.

Description

Prevent accurate screw of fracture

Technical Field

The utility model relates to a screw technical field especially relates to an anti-cracking's accurate screw.

Background

The screw is a common fixing part in life, and in the use of the precision screw, the end part of the screw is just drilled into a wood board, and the wood board is cracked, so that the drilling failure is caused.

In the prior art, the end part of the precision screw is slender, so that the occurrence of wood board cracking is reduced.

However, in the above method, since the end portion of the precision screw becomes slender, the slender end portion may cause a risk of accidental touch injury to the user after the fixing is completed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent accurate screw of fracture, solved because the tip of accurate screw becomes long and thin, after fixed the completion, long and thin tip can bring the mistake for the user and touch the problem of injured risk.

In order to achieve the above object, the utility model provides an anti-cracking precision screw, which comprises a wood board, a mounting plate, a screw body and a fixed block, wherein the mounting plate is provided with a threaded hole, one end of the screw body penetrates through the wood board and is mutually matched with the threaded hole, the fixed block is arranged at the other end of the screw body, one end of the screw body is provided with a through hole, the through hole is provided with a first thread,

the drilling device also comprises a drilling component;

the drilling subassembly includes first cone, cylinder and trompil unit, the cylinder with first cone fixed connection, and be located the top of first cone, cylindrical outward appearance wall has the second screw thread, first screw thread with the mutual adaptation of second screw thread, the trompil unit is installed the below of first cone, the both sides of first cone have the recess respectively.

Wherein, the drilling subassembly still includes two cushions, two the cushion is all installed on the first cone, every the cushion is located respectively correspondingly inside the recess.

The drilling assembly further comprises a rubber pad, the rubber pad is installed above the first cone and sleeved outside the cylinder, and the rubber pad is located between the upper portion of the first cone and one end of the screw body.

The hole opening unit comprises a drilling screw and a second cone, one end of the drilling screw is fixedly connected with the first cone and is located below the first cone, and the second cone is fixedly connected with the other end of the drilling screw.

The anti-cracking precision screw further comprises a rotating assembly, and the rotating assembly is mounted above the fixing block.

The rotating assembly comprises a protruding block and a magnet, the protruding block is fixedly connected with the fixed block and located above the fixed block, the protruding block is provided with a cross-shaped groove, and the magnet is installed inside the cross-shaped groove.

The anti-cracking precision screw further comprises a nut, wherein the nut is matched with the screw body and is located below the mounting plate.

The utility model discloses an anti-cracking's accurate screw, through the screw body, with can with the mounting panel is fixed on the plank, through first screw thread with the second screw thread can be right first cone is dismantled, through the trompil unit, can be right the plank trompil, thereby be convenient for squeeze into the screw body, because first screw thread with the mutual adaptation of second screw thread, the user is through clockwise rotating first cone makes it fix on the screw body, so when the staff clockwise rotates during the screw body, make drilling subassembly follows the rotation, first cone can not become flexible and drop, and turns over and tighten more, during drilling, the trompil unit at first with the plank contacts to carry out the trompil, then first cone with the plank contacts, thereby enlarges the drilling scope, and then makes the screw body pass the plank, then with the mutual adaptation of screw hole of mounting panel, and then right the mounting panel is fixed, and after fixed accomplishing, the user can also avoid the trompil to make through the mistake to the recess, anticlockwise rotation first cone can pull down the drilling subassembly through above-mentioned structure the plank sets up, can also avoid the trompil to the user tip to dismantle its trompil owing to the plank.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is an overall schematic configuration diagram of a first embodiment of the present invention.

Fig. 2 is an overall sectional view of the first embodiment of the present invention.

Fig. 3 is an overall schematic configuration diagram of a second embodiment of the present invention.

Fig. 4 is an overall sectional view of a second embodiment of the present invention.

101-wood board, 102-mounting board, 103-screw body, 104-fixing block, 105-threaded hole, 106-through hole, 107-first thread, 108-first cone, 109-cylinder, 110-second thread, 111-groove, 112-soft pad, 113-rubber pad, 114-drilling screw, 115-second cone, 116-nut, 201-lug, 202-magnet and 203-cross groove.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, which are described below by way of example with reference to the accompanying drawings, and which are intended to illustrate the present invention and are not to be construed as limiting the same.

The first embodiment:

referring to fig. 1 to 2, wherein fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention, fig. 2 is a sectional view of the first embodiment of the present invention, the present invention provides an anti-cracking precision screw, including a wood board 101, a mounting plate 102, a screw body 103, a nut 116, a fixing block 104 and a drilling assembly, the mounting plate 102 has a threaded hole 105, one end of the screw body 103 has a through hole 106, the through hole 106 has a first thread 107, the drilling assembly includes a first cone 108, a cylinder 109, a hole-forming unit, two cushions 112 and a rubber cushion 113, an outer wall of the cylinder 109 has a second thread 110, two sides of the first cone 108 have grooves 111 respectively, and the hole-forming unit includes a drilling screw 114 and a second cone 115.

For the present embodiment, the screw body 103 is rotated to make the drilling screw 114 and the second cone 115 contact with the wood board 101 first, drill the wood board 101, then the screw body 103 penetrates through the wood board 101, and after drilling is finished, the first cone 108 is pinched by the two grooves 111, and then the screw body rotates counterclockwise, so as to take down the whole drilling assembly.

Wherein, the one end of screw body 103 runs through plank 101, and with screw hole 105 mutual adaptation, fixed block 104 is installed the other end of screw body 103, cylinder 109 with first cone 108 fixed connection, and be located the top of first cone 108, the exterior wall of cylinder 109 has second screw thread 110, first screw thread 107 with second screw thread 110 mutual adaptation, the trompil unit is installed the below of first cone 108, the both sides of first cone 108 have recess 111 respectively. The mounting plate 102 can be fixed to the board 101 by the screw body 103, the first cone 108 can be detached by the first thread 107 and the second thread 110, and the board 101 can be perforated by the hole-forming unit, so that the screw body 103 can be driven conveniently.

Next, two of the cushions 112 are mounted on the first cone 108, and each cushion 112 is located inside the corresponding groove 111. By means of the cushion 112, the user can rotate the first cone 108 while holding the two grooves 111 more comfortably without slipping.

Meanwhile, the rubber pad 113 is installed above the first cone 108 and sleeved outside the cylinder 109, and the rubber pad 113 is located between the upper side of the first cone 108 and one end of the screw body 103. The friction force between the first cone 108 and the screw body 103 is increased by the rubber pad 113, so that the first cone 108 and the screw body 103 are fixed more tightly.

In addition, one end of the drilling screw 114 is fixedly connected to the first cone 108 and is located below the first cone 108, and the second cone 115 is fixedly connected to the other end of the drilling screw 114. The second cone 115 is loaded by the drilling screw 114, and the second cone 115 is first contacted with the wood board 101, so that the drilling screw 114 and the second cone 115 open the wood board 101.

Finally, the nut 116 is fitted to the screw body 103 and located below the mounting plate 102. The nut 116 makes the screw body 103 fix the mounting plate 102 more firmly and tightly.

When the anti-cracking precision screw of the embodiment is used, a worker rotates the screw body 103, so that the drilling assembly rotates along with the screw, because the first threads 107 and the second threads 110 are mutually matched, the user rotates the first cone 108 clockwise to fix the screw body 103, so that the screw body 103 only needs to rotate clockwise during drilling, the first cone 108 cannot loosen and is screwed more and more, during drilling, the second cone 115 firstly contacts the wood board 101, the second cone 115 enters the wood board 101, the drilling screw 114 is right to drill the wood board 101 further, then the drilling range is enlarged through the second cone 115, finally, the screw body 103 penetrates through the wood board 101, finally, the screw hole 105 is mutually matched, then the screw cap 116 is screwed on to complete drilling and fix the mounting board 102, after the fixing is completed, the user rotates the second cone 115 anticlockwise through holding two grooves 111, so that the whole drilling assembly is taken down, the screw can be used for dismounting the protruding end of the screw, and avoiding damage to the end of the screw.

The second embodiment:

on the basis of the first embodiment, please refer to fig. 3 to fig. 4, wherein fig. 3 is a schematic overall structural diagram of the second embodiment of the present invention, fig. 4 is a sectional view of the second embodiment of the present invention, the present invention provides an anti-cracking precision screw, which further comprises a rotation assembly, the rotation assembly comprises a projection 201 and a magnet 202, and the projection 201 has a cross-shaped groove 203.

For the present embodiment, the user can rotate the screw body 103 by using the sleeve matched with the protrusion 201, or can rotate the screw body 103 by using the phillips screwdriver matched with the phillips recess 203, and the magnet 202 can be attached to the phillips screwdriver.

Wherein the rotating assembly is installed above the fixed block 104. Through the rotating assembly, the screw body 103 can be rotated.

Next, the protrusion 201 is fixedly connected to the fixing block 104 and located above the fixing block 104, the protrusion 201 has a cross-shaped groove 203, and the magnet 202 is installed inside the cross-shaped groove 203. The projection 201 is matched with a corresponding sleeve, so that the screw body 103 is rotated by the sleeve, and when a user uses a phillips screwdriver to match with the phillips recess 203, the magnet 202 attracts the phillips screwdriver.

When using the accurate screw of an anti-cracking of this embodiment, it is right as required during plank 101 drills, the user at first use the cross screwdriver with the mutual adaptation of cross recess 203, pass through this moment magnet 202's effect, lug 201 can adsorb on the cross screwdriver, thereby makes the user only through the cross screwdriver alright with screw body 103 takes up, passes through in addition the setting of lug 201, the user also can use with the sleeve of the mutual adaptation of lug 201, rotate through the sleeve lug 201, thereby drive the fixed block 104 with screw body 103 rotates, and then the completion is right the drilling of plank 101 sets up through above-mentioned structure, and the user of being convenient for uses multiple instrument to rotate screw body 103 helps promoting user experience.

While the above disclosure describes one or more preferred embodiments of the present invention, it should be understood that there is no intent to limit the scope of the claims, and it is intended that all or a portion of the process flow of the above embodiments be practiced and equivalents thereof within the scope of the claims.

Claims (7)

1. An anti-cracking precision screw comprises a wood board, a mounting plate, a screw body and a fixing block, wherein the mounting plate is provided with a threaded hole, one end of the screw body penetrates through the wood board and is matched with the threaded hole, the fixing block is arranged at the other end of the screw body, one end of the screw body is provided with a through hole, the through hole is provided with a first thread, and the anti-cracking precision screw is characterized in that,

the drilling device also comprises a drilling component;

the drilling subassembly includes first cone, cylinder and trompil unit, the cylinder with first cone fixed connection, and be located the top of first cone, cylindrical outward appearance wall has the second screw thread, first screw thread with the mutual adaptation of second screw thread, the trompil unit is installed the below of first cone, the both sides of first cone have the recess respectively.

2. The precision screw for preventing cracking of claim 1,

the drilling assembly further comprises two cushions, wherein the cushions are mounted on the first cone, and each cushion is located in the corresponding groove.

3. The precision screw for preventing cracking of claim 2,

the drilling assembly further comprises a rubber pad, the rubber pad is arranged above the first cone and sleeved outside the cylinder, and the rubber pad is located between the upper portion of the first cone and one end of the screw body.

4. The crack-resistant precision screw of claim 3,

the trompil unit includes drilling screw and second cone, the drilling screw one end with first cone fixed connection, and be located the below of first cone, the second cone with the other end fixed connection of drilling screw.

5. The crack-resistant precision screw of claim 4,

the anti-cracking precision screw further comprises a rotating assembly, and the rotating assembly is installed above the fixing block.

6. The precision screw for preventing cracking of claim 5,

the rotating assembly comprises a protruding block and a magnet, the protruding block is fixedly connected with the fixing block and located above the fixing block, the protruding block is provided with a cross groove, and the magnet is installed inside the cross groove.

7. The precision screw for preventing cracking of claim 1,

the anti-cracking precision screw further comprises a nut, wherein the nut is matched with the screw body and is located below the mounting plate.

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