CN213393061U - Multi-functional screw - Google Patents

Abstract

The utility model relates to the technical field of screws, and a multi-functional screw is disclosed, the screw cap comprises a nut, the bottom fixed mounting of nut has the connector, the bottom fixed mounting of connector has the nail body, the outside of the nail body is provided with the external screw thread, the bottom fixed mounting of nut has the lasso that is located the connector outside, the outside cover of the nail body is equipped with the second connecting piece with external screw thread threaded connection, the outside cover of the nail body is equipped with the first connecting piece that just is located second connecting piece below with external screw thread threaded connection. This multi-functional screw has advantages such as prevent that the packing ring installation from breaking, losing, has solved because the rubber packing ring is the cover in the screw outside, and the inner ring diameter of rubber packing ring is greater than the screw diameter like this, and at the in-process that the screw was twisted, the rubber packing ring probably squints the atress inhomogeneous to the fracture to the rubber packing ring volume is very little, and the screw dismouting drops the problem of losing very easily.

Description

Multi-functional screw

Technical Field

The utility model relates to a screw technical field specifically is a multi-functional screw.

Background

The screw is also called a screw and a screw rod, the screw is a general name, the screw and the screw rod are mutually distinguished, the screw is of a type with a tip at the front end, the screw pitch is larger and is generally used for fastening wooden parts and plastic parts, the screw rod is a machine screw (mechanical screw) of a type with a tip at the front end, the screw pitch is smaller and uniform and is generally used for fastening metal and machine parts.

At present, a multi-functional screw is a screw with functions of preventing looseness, sticking scraps, preventing leakage and the like, a rubber gasket is sleeved between the screw and a connecting object for connecting leakage prevention, but the rubber gasket is sleeved outside the screw, so that the diameter of an inner ring of the rubber gasket is larger than that of the screw, the rubber gasket can deviate and be stressed unevenly in the screwing process of the screw, the screw is broken, the size of the rubber gasket is very small, the screw is easy to disassemble, drop and lose, and the multi-functional screw is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a many ability screws possesses and prevents that the packing ring installation from breaking, losing advantages such as, has solved because the rubber packing ring is the cover in the screw outside, and the inner ring diameter of rubber packing ring is greater than the screw diameter like this, and at the in-process that the screw was twisted and is moved, the rubber packing ring probably squints the atress inhomogeneous to the fracture, and the rubber packing ring volume is very little, and the screw dismouting drops the problem of loss very easily.

(II) technical scheme

For the above-mentioned purpose of preventing that the installation of packing ring from breaking, losing, the utility model provides a following technical scheme: a multi-functional screw comprises a screw cap, wherein a connector is fixedly arranged at the bottom of the screw cap, a screw body is fixedly arranged at the bottom of the connector, external threads are arranged on the outer side of the screw body, a ferrule positioned on the outer side of the connector is fixedly arranged at the bottom of the screw cap, a second connecting piece in threaded connection with the external threads is sleeved on the outer side of the screw body, a first connecting piece in threaded connection with the external threads and positioned below the second connecting piece is sleeved on the outer side of the screw cap, a limiting hole is formed in the top of the screw cap, a mounting groove positioned between the ferrule and the connector is formed in the bottom of the screw cap, a leakage-proof washer attached to the ferrule and the connector is fixedly arranged in the mounting groove, a connecting groove positioned below the screw cap is formed in the top of the second connecting piece, a buffer washer, the anti-loosening layer is coated inside the external thread tooth socket, and the sticky chip layer coated outside the anti-loosening layer is arranged inside the external thread tooth.

Preferably, the connector is located inside the connecting groove, and the thickness of the connector is equal to the groove depth of the connecting groove.

Preferably, the thickness that the leak protection packing ring is located the mounting groove outside part is not less than the thickness of connector, leak protection packing ring and connector looks adaptation.

Preferably, the sum of the thicknesses of the ferrule and the buffer gasket is equal to the groove depth of the connecting groove, and the ferrule is matched with the buffer gasket.

Preferably, the locking layer is anti-loosening glue, and the locking layer coats inside periphery and the alveolus of the adjacent screw thread of external screw thread.

Preferably, the sticky chip layer is a polymer film, and the sticky chip layer is coated between adjacent threads of the external thread.

(III) advantageous effects

Compared with the prior art, the utility model provides a multi-functional screw possesses following beneficial effect:

the multi-functional screw is characterized in that the screw body is arranged, when the screw is locked with a connecting object, the buffering gasket is firstly placed into the connecting groove, the leakage-proof gasket is clamped between the connecting head and the ferrule, the nut is rotated through the limiting hole by the aid of the external auxiliary screwdriver, the external threads of the screw body are driven to sequentially drill the second connecting piece and the first connecting piece to be connected, the ferrule and the leakage-proof gasket are close to the connecting groove in the continuous descending process of the screw body, when the ferrule and the leakage-proof gasket enter the connecting groove, the ferrule is firstly contacted with the buffering gasket and is contacted with the connecting groove under the continuous rotating and pressing effect, when the nut cannot rotate, the leakage-proof gasket is completely pressed between the connecting head and the ferrule to perform the leakage-proof effect on the screw body and the second connecting piece, and in such a way, the leakage-proof gasket is clamped at the bottom of the nut, the leakage-proof gasket is installed for assistance, and the purpose of preventing the gasket from being broken and lost during installation is achieved.

Drawings

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

FIG. 2 is a connection diagram of a first connection member and a second connection member according to the present invention;

fig. 3 is an enlarged view of the structure at a position of the present invention.

In the figure: 1. a nut; 2. a connector; 3. a nail body; 4. an external thread; 5. a ferrule; 6. a first connecting member; 7. a second connecting member; 8. a limiting hole; 9. mounting grooves; 10. a leak-proof gasket; 11. connecting grooves; 12. a cushion washer; 13. a release layer; 14. a sticky layer.

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. 1-3, a multi-functional screw comprises a nut 1, a connector 2 is fixedly installed at the bottom of the nut 1, a nail body 3 is fixedly installed at the bottom of the connector 2, an external thread 4 is arranged on the outer side of the nail body 3, a ferrule 5 positioned on the outer side of the connector 2 is fixedly installed at the bottom of the nut 1, a second connecting piece 7 in threaded connection with the external thread 4 is sleeved on the outer side of the nail body 3, a first connecting piece 6 in threaded connection with the external thread 4 and positioned below the second connecting piece 7 is sleeved on the outer side of the nail body 3, a limiting hole 8 is formed in the top of the nut 1, a mounting groove 9 positioned between the ferrule 5 and the connector 2 is formed in the bottom of the nut 1, a leakage-proof washer 10 attached to the ferrule 5 and the connector 2 is fixedly installed inside the mounting groove 9, and the thickness of the, leak protection packing ring 10 and connector 2 looks adaptation, spread groove 11 that is located nut 1 below is seted up at the top of second connecting piece 7, connector 2 is located inside spread groove 11, the thickness of connector 2 equals with the groove depth of spread groove 11, the inside of spread groove 11 is provided with the buffering packing ring 12 that the cover was located the connector 2 outside and was laminated with lasso 5, lasso 5 equals the groove depth of spread groove 11 with buffering packing ring 12 thickness sum, lasso 5 and 12 looks adaptations of buffering packing ring, the inside in 4 tooth sockets of external screw thread is scribbled and is equipped with locking layer 13, locking layer 13 is the pine-proof glue, locking layer 13 coats in 4 adjacent tooth of external screw thread opposite side periphery of external screw thread and inside the tooth socket, the inside of 4 tooth of external screw thread is provided with cladding in the glutinous bits layer 14 in the locking layer 13 outside, glutinous bits layer 14 is the polymer film, glutinous bits layer 14 cladding.

In summary, in the multifunctional screw, by providing the screw body 3, when the screw is locked with a connection object, the buffer washer 12 is firstly placed in the connection groove 11, and the leakage-proof washer 10 is simultaneously clamped between the connector 2 and the ferrule 5, and then the nut 1 is rotated through the limiting hole 8 by the external auxiliary screwdriver, so that the external thread 4 of the screw body 3 is sequentially drilled into the second connection member 7 and the first connection member 6 to connect the connection members, during the continuous descending process of the screw body 3, the ferrule 5 and the leakage-proof washer 10 approach to the connection groove 11, when the ferrule 5 and the leakage-proof washer 10 enter the connection groove 11, the ferrule 5 first contacts with the buffer washer 12, and under the continuous rotating and pressing action, the leakage-proof washer 10 contacts with the connection groove 11, when the nut 1 cannot rotate, the leakage-proof washer 10 is completely pressed between the connector 2 and the ferrule 5, so as to perform the leakage-proof action on the screw body 3 and the second connection, through such a mode, with leak protection packing ring 10 card in nut 1 bottom to add and establish buffer washer 12, it is supplementary to carry out the installation of leak protection packing ring 10, reached and prevented that the packing ring installation from breaking, losing the purpose, solved because the rubber packing ring is the cover in the screw outside, the inner ring diameter of rubber packing ring is greater than the screw diameter like this, at the in-process that the screw was twisted, the rubber packing ring probably squints the atress inhomogeneous, thereby the fracture, and the rubber packing ring volume is very little, the problem that the screw dismouting dropped the loss very easily.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (6)

1. A multi-function screw comprises a nut (1), and is characterized in that: the bottom fixed mounting of nut (1) has connector (2), the bottom fixed mounting of connector (2) has the nail body (3), the outside of nail body (3) is provided with external screw thread (4), the bottom fixed mounting of nut (1) has lasso (5) that is located the connector (2) outside, the outside cover of nail body (3) is equipped with second connecting piece (7) with external screw thread (4) threaded connection, the outside cover of nail body (3) is equipped with first connecting piece (6) with external screw thread (4) threaded connection and be located second connecting piece (7) below, spacing hole (8) have been seted up at the top of nut (1), mounting groove (9) that is located between lasso (5) and connector (2) have been seted up to the bottom of nut (1), the inside fixed mounting of mounting groove (9) has leak protection packing ring (10) with lasso (5) and connector (2) laminating, the connecting groove (11) below the nut (1) is arranged at the top of the second connecting piece (7), the buffer washer (12) which is sleeved on the outer side of the connector (2) and is attached to the ferrule (5) is arranged inside the connecting groove (11), the anti-loosening layer (13) is coated inside the tooth groove of the external thread (4), and the sticky scrap layer (14) coated on the outer side of the anti-loosening layer (13) is arranged inside the thread of the external thread (4).

2. The multi-function screw of claim 1, wherein: the connector (2) is located inside the connecting groove (11), and the thickness of the connector (2) is equal to the groove depth of the connecting groove (11).

3. The multi-function screw of claim 1, wherein: the thickness that leak protection packing ring (10) are located mounting groove (9) outside portion is not less than the thickness of connector (2), leak protection packing ring (10) and connector (2) looks adaptation.

4. The multi-function screw of claim 1, wherein: the sum of the thicknesses of the ferrule (5) and the buffer gasket (12) is equal to the groove depth of the connecting groove (11), and the ferrule (5) is matched with the buffer gasket (12).

5. The multi-function screw of claim 1, wherein: locking layer (13) are locking glue, locking layer (13) coat in the adjacent relative one side periphery of thread and the inside of alveolus of external screw thread (4).

6. The multi-function screw of claim 1, wherein: the sticky scrap layer (14) is a polymer film, and the sticky scrap layer (14) is coated between adjacent threads of the external thread (4).

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