CN218151899U - Novel self-tapping screw - Google Patents

Abstract

The utility model discloses a novel self-tapping screw, which comprises an external screw cylinder, a tapping unit and a positioning unit; the outer side end of the outer cylinder is provided with self-tapping threads; the tapping unit contains and leaks the bits mouth, strengthen the inner core, strengthen the head of attacking, attack the head screw thread, the card cap of boring, cross draw-in groove, lock the screw groove and prop the cap subassembly, the spaced apart bits mouth that leaks that is equipped with on the self tapping screw thread, the internally mounted of outer barrel has the enhancement inner core, the lower extreme of strengthening the inner core is connected at the upper end middle part of strengthening the head of attacking, strengthen the lower extreme of connecting at outer barrel in the upper end of attacking, strengthen the outside end of attacking and install the head screw thread, the card cap of boring is installed to the upper end of outer barrel, the upper end of strengthening the inner core is connected at the lower extreme middle part of card cap of boring, this novel self tapping screw, can be when tapping connection begins, can fix a position the screw, tapping connection effect is more stable, and after the tapping is connected, can also protect the screw body, reduce the entering of rainwater, the life-span of improving the use.

Description

Novel self-tapping screw

Technical Field

The utility model relates to a self tapping screw technical field specifically is a novel self tapping screw.

Background

The self-tapping screw is mainly used for connecting and fixing thin plate pieces, such as a color steel plate and a color steel plate, and the color steel plate is connected with a purline and a wall beam. The self-tapping screw is mainly used for connecting and fixing thin plate pieces, such as a color steel plate and a color steel plate, and the color steel plate is connected with a purline and a wall beam.

The patent publication of No. CN206545633U among the prior art discloses a novel self tapping screw, include stainless steel skin, toughness inner core and prevent askew gasket, the stainless steel skin is including the nail pole, be equipped with the screw thread on the nail pole, screw thread central authorities are equipped with the breach, nail pole upper end fixed mounting has the nail lid, nail lid central authorities are equipped with cross-shaped groove, nail pole lower part fixed mounting has the pin fin, prevent askew gasket and locate pin fin and nail pole junction, prevent askew gasket central authorities and be equipped with the round hole the same with the outer diameter of stainless steel, toughness inner core fixed mounting is within the stainless steel skin.

Although the anti-skew gasket is arranged, when the self-tapping screw drill rotates to carry out tapping connection, the self-tapping screw drill cannot be well attached to an external iron product to be connected, so that the tapping connection is easy to incline, the screw body cannot be well protected, and the using effect is general.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a novel self tapping screw, can connect when beginning at the tapping, can fix a position the screw, tapping wireless connection is more stable, and connects the back at the tapping, can also protect the screw body, reduces the entering of rainwater, improves the life-span of using, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a novel self-tapping screw comprises an outer screw barrel, a tapping unit and a positioning unit;

an outer screw cylinder: self-tapping threads are arranged at the outer side end;

tapping unit: the novel chip removing and clamping device comprises chip removing openings, a reinforcing inner core, a reinforcing tapping head, tapping threads, a drill clamping cap, a cross clamping groove, a screw locking groove and a cap supporting component, wherein the chip removing openings are formed in the tapping threads at intervals, the reinforcing inner core is arranged in an outer screw cylinder, the lower end of the reinforcing inner core is connected to the middle of the upper end of the reinforcing tapping head, the upper end of the reinforcing tapping head is connected to the lower end of the outer screw cylinder, the tapping threads are arranged at the outer side end of the reinforcing tapping head, the drill clamping cap is arranged at the upper end of the outer screw cylinder, the upper end of the reinforcing inner core is connected to the middle of the lower end of the drill clamping cap, the cross clamping groove is formed in the upper end of the drill clamping cap, the screw locking grooves are formed in the left end and the right end of the inside of the drill clamping cap, and the cap supporting component is in threaded connection with the outer screw cylinder through the tapping threads; the external cross drill bit can be clamped into the cross clamping groove on the clamping drill cap, so that the external screw cylinder and the reinforced inner core synchronously rotate, when the external cross drill bit rotates, the tapping threads on the reinforced tapping head can be quickly fed into the ironwork, the reinforced inner core can improve the strength of the self-tapping screw, and when the self-tapping screw is connected, partial scrap iron can be properly discharged through the scrap discharge port.

A positioning unit: is arranged on the supporting cap component.

Furthermore, the cap supporting assembly comprises a positioning spiral ring and a rotating backing ring, the inner side end of the positioning spiral ring is in threaded connection with the outer cylinder through self-tapping threads, and the upper end of the positioning spiral ring is rotatably connected with the rotating backing ring. The contact area between the drill clamping cap and an external ironwork can be increased through the positioning spiral ring, and after the self-tapping connection is in place, the rotating backing ring can rotate and prop against the center of the lower end of the drill clamping cap.

Furthermore, the positioning unit comprises an upper arc groove, a lower arc groove and an upper arc strip and a lower arc strip, wherein the four upper arc grooves and the four lower arc grooves are formed in the outer side end of the positioning spiral ring at equal intervals, and the four upper arc strips and the four lower arc strips are respectively connected in the four upper arc grooves and the four lower arc grooves in a corresponding sliding manner. The upper arc strip and the lower arc strip can slide stably by utilizing the upper arc groove and the lower arc groove.

Furthermore, the positioning unit further comprises a positioning sliding cylinder and a soft magnetic ring, the outer ends of the four upper and lower arc bars are connected below the inner end of the positioning sliding cylinder, and the soft magnetic ring is mounted at the lower end of the positioning sliding cylinder. The upper arc strip and the lower arc strip slide to drive the positioning sliding barrel to move up and down, so that the drilling cap can be conveniently wrapped and clamped after tapping connection, and the soft magnetic ring can be quickly adsorbed to an external ironwork.

Further, the positioning unit still contains a section of thick bamboo inner arc piece and elasticity arc strip, the section of thick bamboo inner arc piece is all installed at both ends about the inside smooth section of thick bamboo of location, the nearly heart end at the internal portion of lock silk groove is installed to the elasticity arc strip. The inner arc block of the barrel is convenient to be matched with the matching arc plate, and the elastic arc strip is utilized, so that the stability of fixing the drill clamping cap can be improved without external force.

Further, the positioning unit further comprises an in-groove sliding plate and a matching arc plate, the in-groove sliding plate is connected to the far end inside the lock wire groove in a sliding mode, and the far end of the in-groove sliding plate is connected to the plane end of the matching arc plate. The matching arc plate can be driven to slide by the in-groove sliding plate, and after the tapping is in place, the matching arc plate is pushed to be matched with the in-cylinder arc block under the action of the elastic arc strip.

Further, the positioning sliding cylinder further comprises a cylinder sealing thread, and the upper end inside the positioning sliding cylinder is provided with the cylinder sealing thread. The sealing barrel screw threads are utilized to conveniently connect the sealing barrel screw barrel.

Further, still include a section of thick bamboo spiral shell section of thick bamboo and hand rotary groove dish, the lower extreme of a section of thick bamboo spiral shell section of thick bamboo passes through the inside upper end of a section of thick bamboo screw thread connection in location smooth section of thick bamboo, the hand rotary groove dish is installed to the upper end of a section of thick bamboo spiral shell section of thick bamboo of sealing. After tapping connection, the sealing barrel screw barrel is quickly rotated by the hand-rotating groove disc to be in threaded connection with the upper end of the inside of the positioning sliding barrel.

Compared with the prior art, the beneficial effects of the utility model are that: this novel self tapping screw has following benefit:

1. this novel self tapping screw is equipped with the tapping unit, and outside cross drill bit can block in the cross draw-in groove on the card drill bit cap, makes outer screw shell and the synchronous rotation of enhancement inner core, during the rotation, utilizes the enhancement earlier to attack in the entering ironwork that the head screw thread on the head can be quick, and intensity is higher, and is not fragile, strengthens the intensity that the inner core can improve this self tapping screw, improves life, when self tapping is connected, lets out bits mouth can be appropriate partial iron fillings of discharging, increases the stability of connecting.

2. This novel tapping unit that self tapping screw was equipped with can improve the area of contact of card boring cap and outside ironwork through the location spiro ring, improves the stability of connecting, connects the back that targets in place at the self tapping, and it is rotatable to rotate the backing ring, is pushing up the lower extreme center of card boring cap, prevents that excessive tapping from connecting.

3. This novel self tapping screw is equipped with the positioning unit, and the stable slip of arc about the arc groove can make about utilizing, the slip of arc can drive the smooth section of thick bamboo in location from top to bottom, conveniently wraps up the card nut of boring after the tapping is connected, prevents the corrosion, utilizes the absorption of soft magnetic ring can be quick and outside ironwork, when making things convenient for the tapping, fixes a position.

4. This novel positioning unit that self tapping screw was equipped with utilizes the inslot slide can drive the cooperation arc board and slide, and the back that targets in place in the tapping, under the effect of elasticity arc strip, the cooperation of arc board and section of thick bamboo inner arc piece is promoted to cooperate, realizes preventing not hard up to the fixing of card nut of boring to a certain extent.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the front cross-sectional structure of the present invention;

fig. 3 is a schematic view of a partial enlarged structure at a in fig. 2 according to the present invention;

fig. 4 is a schematic diagram of the internal structure of the lock wire slot of the present invention.

In the figure: the screw comprises an outer screw cylinder 1, a self-tapping screw 2, a tapping unit 3, a chip discharge port 31, a reinforced inner core 32, a reinforced tapping head 33, a tapping head screw 34, a drill cap 35, a cross clamping groove 36, a screw locking groove 37, a positioning spiral ring 38, a rotating backing ring 39, a positioning unit 4, an upper arc groove and a lower arc groove 41, an upper arc strip 42, a lower arc strip 42, a positioning slide cylinder 43, a soft magnetic ring 44, an inner arc block 45, an elastic arc strip 46, an inner sliding plate 47, a matching arc plate 48, a screw thread 5, a screw cylinder 6 and a rotary groove disk 7 by hand.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a novel self-tapping screw comprises an outer screw barrel 1, a tapping unit 3 and a positioning unit 4;

an outer screw cylinder 1: the outer side end is provided with a self-tapping thread 2;

the tapping unit 3: the chip-removing screw comprises a chip-discharging port 31, a reinforcing inner core 32, a reinforcing tapping head 33, tapping threads 34, a drill clamping cap 35, a cross clamping groove 36, a screw locking groove 37 and a cap supporting assembly, wherein the chip-discharging port 31 is arranged on a self-tapping thread 2 at intervals, the reinforcing inner core 32 is arranged inside an outer screw barrel 1, the lower end of the reinforcing inner core 32 is connected to the middle of the upper end of the reinforcing tapping head 33, the upper end of the reinforcing tapping head 33 is connected to the lower end of the outer screw barrel 1, the tapping threads 34 are arranged at the outer side end of the reinforcing tapping head 33, the drill clamping cap 35 is arranged at the upper end of the outer screw barrel 1, the upper end of the reinforcing inner core 32 is connected to the middle of the lower end of the drill clamping cap 35, the cross clamping groove 36 is arranged at the upper end of the drill clamping cap 35, the screw locking grooves 37 are arranged at the left end and the right end of the inside of the drill clamping cap 35, and the cap supporting assembly is in threaded connection with the outer screw barrel 1 through the self-tapping thread 2; outside cross drill bit can block in the cross draw-in groove 36 on the card nut 35, make outer section of thick bamboo 1 and strengthen inner core 32 synchronous rotation, during the rotation, utilize earlier to strengthen in the entering ironwork that the head screw thread 34 on the head 33 can be quick, and intensity is higher, and is not fragile, strengthen inner core 32 and can improve this self tapping screw's intensity, and the service life is prolonged, when the self tapping is connected, but the chip mouth 31 proper discharge part iron fillings increase the stability of connecting.

The cap supporting component comprises a positioning screw ring 38 and a rotating backing ring 39, the inner side end of the positioning screw ring 38 is in threaded connection with the outer screw cylinder 1 through a self-tapping thread 2, and the upper end of the positioning screw ring 38 is rotatably connected with the rotating backing ring 39. The contact area between the drill clamping cap 35 and an external ironwork can be increased through the positioning spiral ring 38, the connection stability is improved, and after the self-tapping connection is in place, the rotating backing ring 39 can rotate to prop against the center of the lower end of the drill clamping cap 35, so that the excessive tapping connection is prevented.

Further comprising a positioning unit 4: is arranged on the supporting cap component.

The positioning unit 4 comprises an upper arc groove 41, a lower arc groove 41, an upper arc strip 42 and a lower arc strip 42, wherein the four upper arc grooves 41 and the four lower arc strips 42 are arranged at the outer side end of the positioning spiral ring 38 at equal intervals, and the four upper arc strips 42 and the four lower arc strips 42 are respectively and correspondingly connected in the four upper arc grooves 41 and the four lower arc grooves in a sliding manner. The upper and lower arc bars 42 can stably slide by the upper and lower arc grooves 41.

The positioning unit 4 further comprises a positioning slide cylinder 43 and a soft magnetic ring 44, the outer ends of the four upper and lower arc bars 42 are connected below the inner end of the positioning slide cylinder 43, and the soft magnetic ring 44 is mounted at the lower end of the positioning slide cylinder 43. The upper and lower arc strips 42 slide to drive the positioning sliding barrel 43 to move up and down, so that the drilling cap 35 is conveniently wrapped and clamped after tapping connection, corrosion is prevented, the soft magnetic ring 44 can be quickly adsorbed on an external ironware, and positioning is performed when tapping is convenient.

The positioning unit 4 further comprises an inner cylinder arc block 45 and an elastic arc strip 46, the inner cylinder arc block 45 is mounted at the left end and the right end inside the positioning sliding cylinder 43, and the elastic arc strip 46 is mounted at the proximal end inside the wire locking groove 37. Utilize a section of thick bamboo inner arc piece 45 convenient and cooperation arc 48 cooperation, realize preventing not hard up to the fixed of card nut 35 certain degree, utilize elasticity arc 46, under no external force, can improve the stability fixed to card nut 35.

The positioning unit 4 further comprises an in-groove sliding plate 47 and a matching arc plate 48, the in-groove sliding plate 47 is slidably connected to the far end inside the lock wire groove 37, and the far end of the in-groove sliding plate 47 is connected to the plane end of the matching arc plate 48. Utilize the inslot slide 47 can drive the slip of cooperation arc board 48, and the back is put in place in the tapping, under the effect of elasticity arc 46, the cooperation of promotion cooperation arc board 48 and section of thick bamboo inner arc piece 45 realizes fixing the card nut 35 to a certain extent, prevents to become flexible.

The sealing device further comprises a sealing barrel thread 5, and the sealing barrel thread 5 is formed in the upper end of the inside of the positioning sliding barrel 43. The sealing barrel screw thread 5 is used for conveniently connecting the sealing barrel screw barrel 6.

The sealing device further comprises a sealing barrel screw barrel 6 and a hand-turning groove disc 7, the lower end of the sealing barrel screw barrel 6 is in threaded connection with the upper end of the inside of the positioning sliding barrel 43 through a sealing barrel thread 5, and the hand-turning groove disc 7 is installed at the upper end of the sealing barrel screw barrel 6. After tapping connection, the sealing barrel screw barrel 6 is rapidly rotated by utilizing the hand-rotating groove disc 7 to be in threaded connection with the upper end of the inner part of the positioning sliding barrel 43, so that the clamping drill cap 35 can be protected, and rainwater can be prevented from being corroded.

When in use: firstly, the soft magnetic ring 44 is quickly adsorbed with an external ironwork, so that the reinforced tapping head 33 corresponds to a connection position to be tapped, then, an external cross-shaped drill bit is clamped into the cross-shaped clamping groove 36 on the clamping drill cap 35 to rotate, until the reinforced tapping head 33 is contacted with the ironwork, when the positioning spiral ring 38 is positioned at the upper end of the upper arc strip 42 and the lower arc strip 42, force is vertically applied to the rotating external cross-shaped drill bit, namely, the tapping head threads 34 on the reinforced tapping head 33 can be quickly inserted into the ironwork, when the positioning spiral ring is rotated to a proper position, the matched arc plate 48 is firstly close to the inner proximal end of the wire locking groove 37 under the action of the in-cylinder arc block 45, so that the in-groove sliding plate 47 applies elastic deformation to the elastic arc strip 46, after the positioning spiral ring is rotated to a proper position, the deformed elastic arc strip 46 applies force to the in-groove sliding plate 47 and the matched arc plate 48, so that the matched arc plate 48 and the in-cylinder arc block 45 are matched to finish unidirectional self-locking of the clamping drill cap 35, finally, the manual rotation groove disc 7 is rotated, so that the threaded connection of the positioning slide cylinder 6 is in the positioning slide cylinder 43, the clamping drill cap 35 can be protected, the rainwater can be more stably corroded, and the rainwater can be more stably.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A novel self-tapping screw is characterized in that: comprises an outer screw cylinder (1), a tapping unit (3) and a positioning unit (4);

outer barrel (1): the outer side end is provided with a self-tapping thread (2);

tapping unit (3): contain and let out bits mouth (31), strengthen inner core (32), strengthen the head of attacking (33), attack the head screw thread (34), card drill cap (35), cross draw-in groove (36), lock screw groove (37) and prop the cap subassembly, the spaced apart chip mouth (31) that is equipped with on self tapping screw thread (2), the internally mounted of outer barrel (1) has and strengthens inner core (32), strengthen the lower extreme of inner core (32) and connect in the upper end middle part of strengthening the head of attacking (33), strengthen the upper end of the head of attacking (33) and connect the lower extreme in outer barrel (1), strengthen the outside end of the head of attacking (33) and install the head screw thread (34), card drill cap (35) is installed to the upper end of outer barrel (1), strengthen the upper end of inner core (32) and connect in the lower extreme middle part of card drill cap (35), cross draw-in groove (36) has been seted up to the upper end of card drill cap (35), lock screw groove (37) have all been seted up to both ends about card drill cap (35) is inside, prop the subassembly and pass through outer barrel (2) and self tapping screw thread connection (1);

positioning unit (4): is arranged on the supporting cap component.

2. A novel self-tapping screw as defined in claim 1, wherein: the cap supporting component comprises a positioning spiral ring (38) and a rotating backing ring (39), the inner side end of the positioning spiral ring (38) is in threaded connection with the outer screw cylinder (1) through a self-tapping thread (2), and the upper end of the positioning spiral ring (38) is rotatably connected with the rotating backing ring (39).

3. A novel self-tapping screw as defined in claim 2, wherein: the positioning unit (4) comprises an upper arc groove (41) and a lower arc groove (42), the outer side end of the positioning spiral ring (38) is equidistantly provided with four upper arc grooves (41) and four lower arc grooves (41), and the four upper arc grooves (42) and the four lower arc grooves (42) are respectively connected in the four upper arc grooves and the four lower arc grooves (41) in a corresponding sliding manner.

4. A novel self-tapping screw as defined in claim 3, wherein: the positioning unit (4) further comprises a positioning sliding cylinder (43) and a soft magnetic ring (44), the outer ends of the four upper and lower arc strips (42) are connected to the lower portion of the inner end of the positioning sliding cylinder (43), and the soft magnetic ring (44) is installed at the lower end of the positioning sliding cylinder (43).

5. A novel self-tapping screw as defined in claim 4, wherein: positioning unit (4) still contain a section of thick bamboo inner arc piece (45) and elasticity arc strip (46), arc piece (45) in the section of thick bamboo are all installed at the inside left and right sides both ends of location slide cartridge (43), the nearly heart end in lock silk groove (37) is installed in elasticity arc strip (46).

6. A novel self-tapping screw as defined in claim 1, wherein: positioning unit (4) still contain inslot slide (47) and cooperation arc board (48), inslot slide (47) sliding connection is at the inside telecentric end of lock silk groove (37), the plane end of cooperation arc board (48) is connected to the telecentric end of inslot slide (47).

7. A novel self-tapping screw as defined in claim 4, wherein: the sealing device is characterized by further comprising a sealing barrel thread (5), and the sealing barrel thread (5) is formed in the upper end of the inside of the positioning sliding barrel (43).

8. A novel self-tapping screw as defined in claim 7, wherein: still including sealing a section of thick bamboo spiral shell section of thick bamboo (6) and hand turn groove dish (7), the lower extreme of sealing a section of thick bamboo spiral shell section of thick bamboo (6) is through sealing a section of thick bamboo screw thread (5) threaded connection in the inside upper end of location slide cartridge (43), hand turn groove dish (7) are installed to the upper end of sealing a section of thick bamboo spiral shell section of thick bamboo (6).

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