CN211778430U

CN211778430U - Two-way set screw

Info

Publication number: CN211778430U
Application number: CN202020333918.9U
Authority: CN
Inventors: 蔡民平
Original assignee: Fujian Jinjiang Self Tapping Screw Co ltd
Current assignee: Fujian Jinjiang Self Tapping Screw Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-10-27
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a two-way fixed screw, its characterized in that: the screw is a bidirectional screw and is provided with a bolt tube in a matching way, the bolt tube comprises a bolt seat, a bolt body and a rotating ratchet tube, the end part of the rotating ratchet tube is provided with a ratchet wheel, an inner hole of the rotating ratchet tube is provided with a thread matched with the screw, the bolt seat is provided with a pawl matched with the ratchet wheel for non-return, and the bolt seat and the bolt body are detachably and fixedly arranged; when the product of the utility model is used for installation, only the bolt pipe needs to be drilled and installed on the wall body, one end of the bidirectional screw is fixed on an object, then the other end of the bidirectional screw exposed out of the object is pressed into the inner hole of the bolt pipe, and the fixed non-return is realized by utilizing the non-return principle of the one-way ratchet wheel and the pawl; the utility model has the advantages of reasonable design, the part is stable, and the product of demolising if needs can use as long as tear the pawl on the seat of a bolt all the other unchangeable that keep, is applicable very much when installing objects of a class of house plate.

Description

Two-way set screw

Technical Field

The utility model relates to a fastener, more specifically it relates to a two-way set screw.

Background

The large-sized doorplate or plaque is hung on a flat wall surface or an object surface, and in order to not destroy the appearance effect of the front surface, back drilling or various modes are generally adopted for fixing, and a bidirectional threaded screw is just one mode; at present, the two-way screws proposed to meet the market demand are generally screws with two-sided positive and negative teeth or screws with the same direction of teeth, and the actual application and fixation usually only uses one end of the screw thread, and the other side is more measures such as glue or expansion and knocking, so that the use is very inconvenient, and the service life of the measures is uncertain.

SUMMERY OF THE UTILITY MODEL

To the problem that exists, the utility model discloses a two-way fixed screw, its bolt pipe through possessing and keeping motionless rotation solves the normal problem of two-way screw installation, has also guaranteed the succinct convenience of installation simultaneously.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a two-way set screw, includes screw and embolium pipe, its characterized in that: the bolt tube comprises a bolt seat, a bolt body and a rotary ratchet tube movably arranged relative to the bolt body, a ratchet wheel is arranged at the end part of the rotary ratchet tube, a screw thread matched with the screw is arranged in an inner hole of the ratchet tube, a pawl matched with the ratchet wheel for stopping the rotation is arranged on the bolt seat, and the bolt seat and the bolt body are detachably and fixedly arranged.

As a further arrangement for the scheme, the pawl is movably arranged on the bolt seat through a rotating shaft.

As a further arrangement for the scheme, the pawl is further provided with a spring ejection mechanism in a matching manner.

As a further arrangement for the scheme, lubricating oil which is beneficial to the movement of the rotating ratchet tube is arranged between the rotating ratchet tube and the bolt body.

As a further arrangement for the above solution, the bolt tube is externally threaded on the outside.

Compared with the prior art, the utility model, following outstanding advantage has:

the product of the utility model is installed by drilling a hole on the wall body to install the bolt pipe, fixing one end of the two-way screw on the object, then pressing the other end of the two-way screw exposed out of the object into the inner hole of the bolt pipe, rotating the ratchet pipe to rotate continuously due to the relationship between external force and thread, interfering the pawl and the ratchet wheel when rotating reversely, and preventing the rotation of the ratchet pipe, so that the screw can not be withdrawn, and realizing fixed non-return by using the non-return principle of the one-way ratchet wheel and the pawl; the utility model has the advantages of reasonable design, the part is stable, and the product of demolising as required, as long as tear the pawl on the seat of a bolt all the other unchangeable that keep can use, very suitable for when installing a class of object of house plate, guaranteed not to destroy openly to wait to adorn the appearance design on object surface, and install in outdoor being difficult for demolising stolen.

Drawings

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

fig. 2 is a schematic structural view of the ratchet and pawl of the present invention.

Reference numerals: 1. a screw; 2. a plug tube; 3. a bolt seat; 31. a pawl; 311. a rotating shaft; 312. a spring ejection mechanism; 4. a plug body; 5. rotating the ratchet tube; 51. a ratchet wheel; 52. and (4) threading.

Detailed Description

The following detailed description describes embodiments of the invention, examples of which are intended to explain the invention, and the terms "upper", "lower", "top", "bottom", and the like in the embodiments indicate positional or orientational relationships and are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the components or elements so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

As shown in fig. 1-2, the utility model provides a two-way fixed screw, including screw 1 and bolt 2, its characterized in that: the bolt tube 2 comprises a bolt seat 3, a bolt body 4 and a rotary ratchet tube 5 movably arranged relative to the bolt body 4, a ratchet 51 is arranged at the end part of the rotary ratchet tube 5, a thread 52 matched with a screw is arranged in an inner hole of the ratchet tube, a pawl 31 matched with the ratchet 51 for non-return is arranged on the bolt seat 3, and the bolt seat 3 and the bolt body 4 are detachably and fixedly arranged.

As a further arrangement for the above solution, the pawl 31 is movably disposed on the bolt seat 3 through a rotating shaft 311.

As a further arrangement for the above solution, the pawl 31 is further provided with a spring ejection mechanism 312.

As a further arrangement for the scheme, lubricating oil which is beneficial to the movement of the rotating ratchet tube 5 is arranged between the rotating ratchet tube 5 and the bolt body 4.

As a further provision for this, the bolt tube 2 is externally threaded.

The utility model discloses the product application method, drill hole on the wall body in advance, again with the bolt pipe dress, again fix one end of two-way screw on the object, then expose the other end of object with two-way screw and impress the bolt pipe hole, this process is because of external force and screw thread relation, rotates ratchet pipe and constantly rotates, pawl and ratchet interference during the reversal, rotate the ratchet pipe and can't move about, therefore the screw also can't withdraw from, utilize the non return principle of one-way ratchet and pawl to realize fixed non return; the utility model has the advantages of reasonable design, the part is stable, and the product of demolising as required, as long as tear the pawl on the seat of a bolt all the other unchangeable that keep can use, very suitable for when installing a class of object of house plate, guaranteed not to destroy openly to wait to adorn the appearance design on object surface, and install in outdoor being difficult for demolising stolen.

The above description should not be taken as limiting the invention, but is made merely for the purpose of assisting in the explanation of the invention. The preferred embodiments are not exhaustive of all of the elements

In detail, the present invention is not limited to the specific embodiments, and any modifications, equivalent replacements, improvements, etc. within the design concept of the present invention should be included within the protection scope of the present invention. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand and utilize the invention.

Claims

1. The utility model provides a two-way set screw, includes screw (1) and bolt pipe (2), its characterized in that: the bolt tube (2) comprises a bolt seat (3), a bolt body (4) and a rotary ratchet tube (5) movably arranged relative to the bolt body (4), a ratchet wheel (51) is arranged at the end of the rotary ratchet tube (5), a thread (52) matched with a screw is arranged in an inner hole of the rotary ratchet tube, a pawl (31) matched with the ratchet wheel (51) in a non-return manner is arranged on the bolt seat (3), and the bolt seat (3) and the bolt body (4) are detachably and fixedly arranged.

2. A bi-directional set screw according to claim 1, characterised in that the pawl (31) is movably mounted on the bolt seat (3) by means of a pivot (311).

3. A bi-directional set screw according to claim 2, characterised in that the pawl (31) is further provided with a spring ejection mechanism (312).

4. A bidirectional fixing screw as set forth in claim 3, characterized in that a lubricant facilitating the movement of the rotating ratchet tube (5) is provided between the rotating ratchet tube (5) and the bolt body (4).

5. A bi-directional set screw according to claim 4, characterised in that the bolt tube (2) is externally threaded.