CN218000099U - Integrated self-tapping screw for tooth cutting tail belt gasket - Google Patents

Abstract

The utility model discloses a tooth cuts tail band packing ring integration self tapping screw relates to screw technical field, including the nut, still include connection structure, the screw body is installed to the bottom of nut, and the outer wall of screw body installs the external screw thread, the below of nut is provided with the packing ring, and the outer wall cover of packing ring below screw body is equipped with the lantern ring, the internally mounted of the lantern ring has the internal thread, connection structure is located the inside on packing ring top, connection structure includes the spread groove, the inside on packing ring top is seted up to the spread groove, and installs expanding spring in the inside bottom of spread groove, the go-between is installed on expanding spring's top, and the inserted block is all installed to the both sides on go-between top. The utility model discloses a go-between and expanding spring control rotate the degree of nut, prevent to produce the destruction to the lantern ring of connecting, and this structure has realized the control to the nut degree of rotating, prevents to produce the damage to the connecting piece when preventing smooth tooth.

Description

Integrated self-tapping screw for tooth cutting tail belt gasket

Technical Field

The utility model relates to a screw technical field specifically is a tooth cuts tail tape packing ring integration self tapping screw.

Background

The tapping screw is used for nonmetal or softer metal, bottom holes and tapping are not needed, common screws are flat-headed and consistent in thickness, holes drilled by the tapping screw are holes without tapping, the used screws are different from common screws, the pitch is larger, the tapping screw is similar to a chipless tapping screw, the tapping screw can be directly screwed in without tapping, and metal and plastic are generally used by the method.

Through retrieval, chinese patent No. CN206329600U, published 7.7.7.14.4, discloses a self-tapping screw, and the text proposes that the lower end of the screw rod (1) is provided with a tail tip (2) which is integrated with the tail tip (2), and the upper end is fixedly provided with a nut (3); the screw teeth (4) are obliquely arranged on the screw rod (1); the barb (5) is fixedly arranged at the middle section of the screw rod (1)' the degree of rotating the screw cap cannot be controlled, the connecting piece is easily damaged due to too much rotating degree, and therefore, the scheme is generated by intensive research aiming at the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tooth is cut tail area packing ring integration self tapping screw to the pivoted degree that proposes in solving above-mentioned background art is too much, easily causes its connecting piece impaired problem.

In order to achieve the above object, the utility model provides a following technical scheme: the integrated self-tapping screw comprises a screw cap and a connecting structure, wherein the screw cap is provided with a screw hole;

the connecting structure comprises a nut, a washer, a connecting structure and a bolt body, wherein the bottom end of the nut is provided with the nut body, the outer wall of the nut body is provided with an external thread, the lower part of the nut is provided with the washer, the outer wall of the nut body below the washer is sleeved with a lantern ring, the interior of the lantern ring is provided with an internal thread, and the connecting structure is positioned in the top end of the washer;

the connecting structure comprises a connecting groove, the connecting groove is arranged in the top of the gasket, an expansion spring is arranged at the bottom end of the inside of the connecting groove, the connecting ring is arranged at the top end of the expansion spring, the inserting blocks are arranged on two sides of the top end of the connecting ring, and slots are formed in the two sides of the bottom end of the nut.

Preferably, the bottom end of the external thread penetrates through the gasket and the lantern ring, and the bottom end of the external thread extends to the lower part of the lantern ring.

Preferably, the gasket ring is sleeved on the outer wall of the screw body, and the gasket ring is connected with the screw body through external threads and internal threads.

Preferably, the telescopic spring is sleeved on the outer wall of the screw body, and the connecting ring is sleeved on the outer wall of the screw body.

Preferably, the top ends of the insertion blocks penetrate through the screw caps, and the top ends of the insertion blocks extend into the slots.

Preferably, the internal thread and the external thread are matched with each other, and the gasket and the lantern ring are abutted against each other.

Preferably, the insertion block and the slot are matched with each other, and the inner diameter of the connection ring is larger than the outer diameter of the screw body.

Compared with the prior art, the beneficial effects of the utility model are that: through the direction of rotation of adjusting the nut, make the inside downstream of internal thread of screw body, then relative lantern ring then at the outer wall upward movement of screw body, can aim at inserted block and slot each other this moment, fix a position the go-between through inserted block and slot, prevent that the position of packing ring from producing the skew, press the go-between through the nut, press expanding spring through the go-between, make expanding spring shrink, treat that the go-between submerges the inside of spread groove gradually, the staff can relax the speed of rotating the nut this moment, treat that the go-between submerges the inside of spread groove completely, expanding spring has been compressed to the most contraction state this moment, the stall nut, the phenomenon of preventing the smooth tooth appears, and the degree of rotating the nut is controlled through go-between and expanding spring, prevent to produce the destruction to the lantern ring of connecting, this structure has realized the control to the nut degree of rotating, prevent to produce the damage to the connecting piece when preventing the smooth tooth.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

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

fig. 3 is a schematic view of the structure of the present invention;

fig. 4 is an enlarged schematic structural diagram of a in fig. 2 according to the present invention.

In the figure: 1. an external thread; 2. a screw body; 3. a collar; 4. a gasket; 5. a nut; 6. an internal thread; 7. connecting grooves; 8. a tension spring; 9. inserting a block; 10. a slot; 11. and (7) connecting rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Example 1: referring to fig. 1-4, a thread-cutting tail-band washer integrated self-tapping screw includes a nut 5 and a connecting structure;

the bottom end of the nut 5 is provided with a screw body 2, the outer wall of the screw body 2 is provided with an external thread 1, a gasket 4 is arranged below the nut 5, the outer wall of the screw body 2 below the gasket 4 is sleeved with a lantern ring 3, an internal thread 6 is arranged inside the lantern ring 3, the bottom end of the external thread 1 penetrates through the gasket 4 and the lantern ring 3, the bottom end of the external thread 1 extends to the lower part of the lantern ring 3, the gasket 4 is sleeved on the outer wall of the screw body 2, the lantern ring 3 and the screw body 2 are connected through the external thread 1 and the internal thread 6, and the connecting structure is positioned inside the top end of the gasket 4;

referring to fig. 1-4, the integrated self-tapping screw for the tooth-cutting tail-band gasket further comprises a connecting structure, wherein the connecting structure comprises a connecting groove 7, the connecting groove 7 is formed in the top end of the gasket 4, an expansion spring 8 is installed at the bottom end of the inside of the connecting groove 7, a connecting ring 11 is installed at the top end of the expansion spring 8, inserting blocks 9 are installed on two sides of the top end of the connecting ring 11, and inserting slots 10 are formed in the inside of two sides of the bottom end of the nut 5;

the telescopic spring 8 is sleeved on the outer wall of the screw body 2, and the connecting ring 11 is sleeved on the outer wall of the screw body 2;

the top ends of the insertion blocks 9 penetrate through the screw caps 5, and the top ends of the insertion blocks 9 extend into the slots 10;

the internal thread 6 is matched with the external thread 1, and the gasket 4 is abutted against the lantern ring 3;

the insertion block 9 is matched with the slot 10, and the inner diameter of the connecting ring 11 is larger than the outer diameter of the screw body 2;

specifically, as shown in fig. 1, 2, 3 and 4, when the mechanism is used, the nut 5 presses the coupling ring 11, the expansion spring 8 is pressed through the coupling ring 11, the expansion spring 8 contracts, and when the coupling ring 11 gradually sinks into the connecting groove 7, the worker can slow down the speed of rotating the nut 5, and when the coupling ring 11 completely sinks into the connecting groove 7, the expansion spring 8 is compressed to the most contracted state, and the nut 5 stops rotating.

The working principle is as follows: the outer wall of the screw body 2 is sleeved with the gasket 4 by an operator, then the lantern ring 3 is arranged below the screw body 2, the nut 5 is rotated, the screw body 2 is driven to rotate through the nut 5, the external thread 1 is driven to rotate through the screw body 2, the external thread 1 is matched with the internal thread 6, the screw body 2 can move along with the internal thread 6 in the lantern ring 3, the screw body 2 can move downwards in the internal thread 6 by adjusting the rotating direction of the nut 5, the opposite lantern ring 3 moves upwards in the outer wall of the screw body 2, at the moment, the plug block 9 and the slot 10 can be aligned with each other, the connecting ring 11 is positioned through the plug block 9 and the slot 10, the gasket 4 is prevented from offsetting, the connecting ring 11 is pressed through the nut 5, the expansion spring 8 is pressed through the connecting ring 11, the expansion spring 8 is contracted, the connecting ring 11 is gradually immersed in the connecting groove 7, at the moment, the speed of rotating the nut 5 can be slowed down by the operator, the operator can completely immerse the connecting ring 11 in the connecting groove 7, the expansion spring 8 is compressed to the most contracted state, the phenomenon of rotation is prevented, the nut 5, the phenomenon of sliding of the connecting ring and the nut 3 is prevented from damaging the connecting ring 3, and the degree of the nut is prevented from being damaged by the expansion spring 3, and the rotation of the connecting ring 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a tooth is cut tail and is taken integration self tapping screw of packing ring, includes nut (5), its characterized in that: the device also comprises a connecting structure;

the screw comprises a nut (5) and is characterized in that a screw body (2) is installed at the bottom end of the nut (5), an external thread (1) is installed on the outer wall of the screw body (2), a gasket (4) is arranged below the nut (5), a lantern ring (3) is sleeved on the outer wall of the screw body (2) below the gasket (4), an internal thread (6) is installed inside the lantern ring (3), and the connecting structure is located inside the top end of the gasket (4);

connection structure includes spread groove (7), inside on packing ring (4) top is seted up in spread groove (7), and inside bottom of spread groove (7) installs expanding spring (8), go-between (11) are installed on the top of expanding spring (8), and the both sides on go-between (11) top all install inserted block (9), slot (10) have all been seted up to the inside of nut (5) bottom both sides.

2. The integrated self-tapping screw with the tooth-cutting tail-band gasket as claimed in claim 1, wherein: the bottom end of the external thread (1) penetrates through the gasket (4) and the lantern ring (3), and the bottom end of the external thread (1) extends to the lower portion of the lantern ring (3).

3. The integrated self-tapping screw with the tooth-cutting tail-band gasket as claimed in claim 1, wherein: the outer wall of the screw body (2) is sleeved with the gasket (4), and the lantern ring (3) is connected with the screw body (2) through the external thread (1) and the internal thread (6).

4. The integrated self-tapping screw with the tooth-cutting tail-band gasket as claimed in claim 1, characterized in that: the outer wall of the screw body (2) is sleeved with the extension spring (8), and the outer wall of the screw body (2) is sleeved with the connecting ring (11).

5. The integrated self-tapping screw with the tooth-cutting tail-band gasket as claimed in claim 1, wherein: the top end of the insert block (9) penetrates through the nut (5), and the top end of the insert block (9) extends to the inside of the slot (10).

6. The integrated self-tapping screw with the tooth-cutting tail-band gasket as claimed in claim 1, wherein: the internal thread (6) is matched with the external thread (1), and the gasket (4) is abutted to the lantern ring (3).

7. The integrated self-tapping screw with the tooth-cutting tail-band gasket as claimed in claim 1, characterized in that: the insert block (9) is matched with the slot (10), and the inner diameter of the connecting ring (11) is larger than the outer diameter of the screw body (2).

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