CN209908952U

CN209908952U - Improved anti-falling screw structure

Info

Publication number: CN209908952U
Application number: CN201920428905.7U
Authority: CN
Inventors: 孙云虎
Original assignee: Yihan Mechanics And Technology (shanghai) Co Ltd
Current assignee: Yihan Mechanics And Technology (shanghai) Co Ltd
Priority date: 2019-03-31
Filing date: 2019-03-31
Publication date: 2020-01-07
Anticipated expiration: 2029-03-31

Abstract

The utility model discloses an improved generation anti-drop screw structure, including the limiting plate, the left side fixedly connected with screw thread of limiting plate is tied, the right side of limiting plate is provided with the carousel, the left side fixedly connected with locating lever of carousel, the left end of locating lever runs through the limiting plate and extends to the spacing bearing of the inside fixedly connected with that the screw thread was tied, the left side of spacing bearing and the inside fixed connection that the screw thread was tied, the helicla flute has been seted up on the surface of locating lever, the surface cover of helicla flute is equipped with the transmission sleeve. The utility model discloses a set up the cooperation of limiting plate, threaded bolt, carousel, spacing bearing, helicla flute, transmission cover, locating piece, transmission post, reference column, baffle, reset spring, lifter plate, fixed column, locating plate and locating lever, make the locating lever to right side fixed connection, fix through the locating lever, prevent that the phenomenon of rocking from appearing in the screw, solved current bolt problem that can not anti-drop.

Description

Improved anti-falling screw structure

Technical Field

The utility model relates to a screw technical field specifically is an improved generation anti-drop screw structure.

Background

Bolts are mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

The screw is one of bolt, and mainly used is fixed, but current bolt can not anti-drop, leads to the user the phenomenon that the screw dropped to appear easily when using, and the not convenient to use person uses to the practicality of bolt has been reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improved generation anti-drop screw structure possesses anti-drop's advantage, has solved current bolt problem that can not anti-drop.

In order to achieve the above object, the utility model provides a following technical scheme: an improved anti-drop screw structure comprises a limiting plate, wherein a threaded bolt is fixedly connected to the left side of the limiting plate, a turntable is arranged on the right side of the limiting plate, a positioning rod is fixedly connected to the left side of the turntable, the left end of the positioning rod penetrates through the limiting plate and extends to the inside of the threaded bolt, a limiting bearing is fixedly connected to the left side of the limiting bearing and is fixedly connected to the inside of the threaded bolt, a spiral groove is formed in the surface of the positioning rod, a transmission sleeve is sleeved on the surface of the spiral groove, a positioning block is fixedly connected to the inside of the transmission sleeve, one end, close to the spiral groove, of the positioning block extends to the inside of the spiral groove, a transmission column is fixedly connected to the top and the bottom of the left side of the transmission sleeve, a positioning column penetrates through the threaded, the outer side of the partition board is fixedly connected with a return spring, the outer side of the return spring is fixedly connected with a lifting plate, the outer side of the lifting plate is fixedly connected with a fixing column, and the outer side of the fixing column is fixedly connected with a positioning plate.

Preferably, the bottom on carousel right side is provided with the pilot pin, the left side of pilot pin runs through the carousel and extends to the inside of limiting plate.

Preferably, the surface of the positioning rod is fixedly connected with a positioning bearing, and the right side of the positioning bearing is fixedly connected with the limiting plate.

Preferably, the top and the bottom of the transmission sleeve are both fixedly connected with sliding blocks, the top and the bottom of the threaded bolt are both provided with sliding grooves, and the sliding blocks are in sliding connection with the sliding grooves.

Preferably, the top and the bottom of the left side of the threaded bolt are both provided with positioning holes, and the positioning holes are matched with the transmission column for use.

Preferably, the surface of the partition plate is fixedly connected with the positioning column, and the partition plate is positioned at the middle shaft of the inner wall of the positioning column.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up the limiting plate, the screw thread is tied, the carousel, spacing bearing, the helicla flute, the drive sleeve, the locating piece, the transmission post, the reference column, a separation plate, reset spring, the lifter plate, the fixed column, the cooperation of locating plate and locating lever, make the locating lever to right side fixed connection, fix through the locating lever, prevent that the phenomenon of rocking from appearing in the screw, the problem that current bolt can not anti-drop has been solved, this improved generation anti-drop screw structure, possess anti-drop's advantage, the phenomenon that the user can not appear dropping in the screw when using, convenient to use person uses, thereby the practicality of bolt has been improved.

2. The utility model discloses a set up the locating pin, can fix the carousel, prevent that the carousel from appearing the pivoted phenomenon when not needing to rotate, through setting up positioning bearing, can fix the locating lever, prevent that the phenomenon that the locating lever from appearing rocking, through setting up slider and spout, can fix the transmission cover, prevent that the transmission cover from appearing the phenomenon of rocking, through setting up the locating hole, can protect the screw bolt, prevent that frictional phenomenon from appearing with the transmission post in the screw bolt.

Drawings

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

FIG. 2 is an enlarged view of a portion of the structure A in FIG. 1 according to the present invention;

fig. 3 is a front view schematically illustrating the structure of fig. 1 according to the present invention.

In the figure: the device comprises a limiting plate 1, a threaded bolt 2, a rotary table 3, a limiting bearing 4, a spiral groove 5, a transmission sleeve 6, a positioning block 7, a transmission column 8, a positioning column 9, a partition plate 10, a return spring 11, a lifting plate 12, a fixing column 13, a positioning plate 14, a positioning rod 15, a positioning bolt 16, a positioning bearing 17, a sliding block 18, a sliding groove 19 and a positioning hole 20.

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, an improved anti-drop screw structure comprises a limiting plate 1, a threaded bolt 2 is fixedly connected to the left side of the limiting plate 1, a rotary disc 3 is arranged on the right side of the limiting plate 1, a positioning bolt 16 is arranged at the bottom of the right side of the rotary disc 3, the left side of the positioning bolt 16 penetrates through the rotary disc 3 and extends to the inside of the limiting plate 1, the rotary disc 3 can be fixed by arranging the positioning bolt 16 to prevent the rotary disc 3 from rotating when the rotary disc 3 does not need to rotate, a positioning rod 15 is fixedly connected to the left side of the rotary disc 3, a positioning bearing 17 is fixedly connected to the surface of the positioning rod 15, the right side of the positioning bearing 17 is fixedly connected to the limiting plate 1, the positioning rod 15 can be fixed by arranging the positioning bearing 17 to prevent the positioning rod 15 from shaking, a limiting bearing 4 is fixedly connected to the, the left side of the limiting bearing 4 is fixedly connected with the inside of the threaded bolt 2, the surface of the positioning rod 15 is provided with a spiral groove 5, the surface of the spiral groove 5 is sleeved with a transmission sleeve 6, the top and the bottom of the transmission sleeve 6 are both fixedly connected with a slide block 18, the top and the bottom of the threaded bolt 2 are both provided with a slide groove 19, the slide block 18 is slidably connected with the slide groove 19, the transmission sleeve 6 can be fixed by arranging the slide block 18 and the slide groove 19, the phenomenon that the transmission sleeve 6 shakes is prevented, the inside of the transmission sleeve 6 is fixedly connected with a positioning block 7, one end of the positioning block 7, which is close to the spiral groove 5, extends into the spiral groove 5, the top and the bottom of the left side of the transmission sleeve 6 are both fixedly connected with a transmission column 8, the top and the bottom of the left side of the threaded bolt 2 are both, the phenomenon of friction between the threaded bolt 2 and the transmission column 8 is prevented, the left side of the transmission column 8 penetrates through the threaded bolt 2 and extends to the outside of the threaded bolt 2 and is fixedly connected with a positioning column 9, a partition plate 10 is arranged inside the positioning column 9, the surface of the partition plate 10 is fixedly connected with the positioning column 9, the partition plate 10 is positioned at the middle shaft of the inner wall of the positioning column 9, the outer side of the partition plate 10 is fixedly connected with a return spring 11, the outer side of the return spring 11 is fixedly connected with a lifting plate 12, the outer side of the lifting plate 12 is fixedly connected with a fixing column 13, the outer side of the fixing column 13 is fixedly connected with a positioning plate 14, and the positioning rod 15 is fixedly connected towards the right side through the matching of a limiting plate 1, the threaded bolt 2, a rotary disc 3, a limiting bearing 4, a spiral groove 5, a transmission sleeve 6, a positioning block 7, fix through locating lever 15, prevent that the phenomenon that the screw from appearing rocking, solved current bolt can not anti-drop's problem, this improved generation anti-drop screw structure possesses anti-drop's advantage, and the phenomenon that the user screw can not appear dropping when using, and convenient to use person uses to the practicality of bolt has been improved.

When the device is used, a user manually rotates the rotary disc 3, the rotary disc 3 drives the positioning rod 15 to rotate, the positioning rod 15 drives the spiral groove 5 to rotate, the spiral groove 5 drives the transmission sleeve 6 to move leftwards through the positioning block 7, the transmission sleeve 6 drives the transmission post 8 to move leftwards, the transmission post 8 drives the positioning post 9 to move leftwards, the positioning plate 14 is pressed, the positioning plate 14 moves inwards, the positioning plate 14 is inserted into a workpiece needing a screw, the rotary disc 3 rotates reversely, the positioning post 9 rotates, then the limiting plate 1 rotates manually, the limiting plate 1 drives the threaded bolt 2 to rotate, the nut is connected with the threaded bolt 2, the positioning rod 15 penetrates through the nut, the reset spring 11 resets, the reset spring 11 drives the lifting plate 12 to move outwards, the lifting plate 12 drives the fixing column 13 to move outwards, the fixing column 13 drives the positioning plate 14 to move outwards, and the nut is fixed, thereby achieving the anti-drop effect.

In summary, the following steps: this improved generation anti-drop screw structure, through limiting plate 1, threaded bolt 2, carousel 3, spacing bearing 4, helicla flute 5, transmission sleeve 6, locating piece 7, transmission post 8, reference column 9, baffle 10, reset spring 11, lifter plate 12, fixed column 13, locating plate 14 and locating lever 15's cooperation, solved current bolt problem that can not anti-drop.

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.

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

1. The utility model provides an improved generation anti-drop screw structure, includes limiting plate (1), its characterized in that: the left side of the limiting plate (1) is fixedly connected with a threaded bolt (2), the right side of the limiting plate (1) is provided with a turntable (3), the left side of the turntable (3) is fixedly connected with a positioning rod (15), the left end of the positioning rod (15) penetrates through the limiting plate (1) and extends to the inner part of the threaded bolt (2) to be fixedly connected with a limiting bearing (4), the left side of the limiting bearing (4) is fixedly connected with the inner part of the threaded bolt (2), a spiral groove (5) is formed in the surface of the positioning rod (15), a transmission sleeve (6) is sleeved on the surface of the spiral groove (5), a positioning block (7) is fixedly connected with the inner part of the transmission sleeve (6), one end, close to the spiral groove (5), of the positioning block (7) extends to the inner part of the spiral groove (5), and a transmission column (8) is, the left side of transmission post (8) runs through threaded bolt (2) and extends to outside fixedly connected with reference column (9) that threaded bolt (2), the inside of reference column (9) is provided with baffle (10), the outside fixedly connected with reset spring (11) of baffle (10), the outside fixedly connected with lifter plate (12) of reset spring (11), the outside fixedly connected with fixed column (13) of lifter plate (12), the outside fixedly connected with locating plate (14) of fixed column (13).

2. The improved anti-drop screw structure of claim 1, wherein: the bottom on carousel (3) right side is provided with pilot pin (16), the left side of pilot pin (16) runs through carousel (3) and extends to the inside of limiting plate (1).

3. The improved anti-drop screw structure of claim 1, wherein: the surface of the positioning rod (15) is fixedly connected with a positioning bearing (17), and the right side of the positioning bearing (17) is fixedly connected with the limiting plate (1).

4. The improved anti-drop screw structure of claim 1, wherein: the top and the bottom of the transmission sleeve (6) are fixedly connected with sliding blocks (18), the top and the bottom of the threaded bolt (2) are provided with sliding grooves (19), and the sliding blocks (18) are in sliding connection with the sliding grooves (19).

5. The improved anti-drop screw structure of claim 1, wherein: locating holes (20) are formed in the top and the bottom of the left side of the threaded bolt (2), and the locating holes (20) are matched with the transmission column (8) for use.

6. The improved anti-drop screw structure of claim 1, wherein: the surface of the partition plate (10) is fixedly connected with the positioning column (9), and the partition plate (10) is located at the middle shaft of the inner wall of the positioning column (9).