CN211314794U - A plum-shaped and sleeve combined bolt - Google Patents

Abstract

The utility model relates to a quincunx type and sleeve combined bolt, which comprises a bolt and a sleeve, the bolt comprises a bolt head, a flange plate and a screw rod, the bolt head is fixedly connected with the screw rod through the flange plate, and the The screw is provided with an external thread, the head of the bolt is arranged in a plum blossom shape, the head of the bolt is evenly provided with a number of grooves, the sleeve is sleeved on the screw, and the sleeve is on one end close to the flange. A first retaining ring is provided, the end of the sleeve away from the flange is provided with a second retaining ring, the outer wall of the screw is evenly provided with a number of limit blocks on the same circle center, and the inner wall of the sleeve is provided with a second retaining ring. A limit groove corresponding to the limit block is arranged thereon, and a first anti-skid groove is evenly arranged on the outer wall of the sleeve. The beneficial effects of the utility model are as follows: the disassembly and assembly of the bolt is easier and more convenient, the sleeve does not fall off, and the overall strength and the stability during connection are improved.

Description

A plum-shaped and sleeve combined bolt

technical field

The utility model relates to a bolt, in particular to a plum-shaped and sleeve combined bolt.

Background technique

Bolts are mechanical parts that are cylindrical, threaded fasteners with nuts. A type of fastener consisting of a head and a screw (a cylinder with an external thread) that needs to be matched with a nut to fasten and connect two parts with through holes. This form of connection is called a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.

Some existing sleeve combination bolts are very troublesome to disassemble and assemble, and the connection is not stable and firm enough, and it is easy to loosen after a long time, and the bolts are easy to break, which affects the use.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a combination bolt of a plum blossom type and a sleeve to solve the above problems.

The technical scheme of the present utility model is realized as follows: a quincunx-shaped and sleeve combined bolt includes a bolt and a sleeve, the bolt includes a bolt head, a flange plate and a screw rod, and the bolt head passes through the flange plate It is fixedly connected with the screw, the screw is provided with an external thread, the head of the bolt is arranged in a plum blossom shape, the head of the bolt is evenly provided with a number of grooves, the sleeve is sleeved on the screw, and the sleeve is The end close to the flange is provided with a first retaining ring, the end of the sleeve away from the flange is provided with a second retaining ring, and the outer wall of the screw is evenly provided with a number of limit blocks on the same circle center The inner wall of the sleeve is provided with a limit groove corresponding to the limit block, and the outer wall of the sleeve is evenly provided with a first anti-skid groove.

By adopting the above technical solutions, the disassembly and assembly of the bolts are easier and more convenient, the sleeves will not fall, and the overall strength and the stability of the connection are improved.

The utility model is further arranged as follows: the tip of one end of the screw rod is arranged away from the flange.

By adopting the above technical solution, the screw rod is easier to insert, and the installation is more convenient.

The utility model is further configured as follows: the flange plate is provided with an annular gasket facing the first retaining ring, and the annular gasket is arranged in conflict with the first retaining ring.

By adopting the above technical solution, the stability of the connection between the first retaining ring and the flange is improved, and the service life is prolonged.

The utility model is further configured as follows: a plurality of second anti-skid grooves arranged around the center are arranged on the side of the second retaining ring away from the first retaining ring.

By adopting the above technical solution, the sleeve is not easy to slide, and the connection is more stable and firm.

The utility model is further configured as follows: the number of the grooves is set to 6.

By adopting the above technical solution, the strength of the bolt head is ensured, and the connection is more stable and easy to rotate.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a specific embodiment of the present invention.

FIG. 2 is a structural cross-sectional view 1 of a specific embodiment of the present invention.

FIG. 3 is a second structural cross-sectional view of a specific embodiment of the present invention.

FIG. 4 is a left side view of the structure of the specific embodiment of the present invention.

5 is a structural side view of a sleeve in a specific embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figures 1 to 5, the present utility model discloses a quincunx type and sleeve combination bolt, comprising a bolt 1 and a sleeve 2, the bolt 1 comprising a bolt head 3, a flange 4 and a screw rod 5, The bolt head 3 is fixedly connected with the screw rod 5 through the flange 4, the screw rod 5 is provided with an external thread 6, the bolt head 3 is arranged in a plum blossom shape, and the bolt head 3 is evenly provided with a number of recesses. Slot 7, the sleeve 2 is sleeved on the screw 5, the end of the sleeve 2 close to the flange 4 is provided with a first retaining ring 8, and the end of the sleeve 2 away from the flange 4 is provided There is a second retaining ring 9, the outer wall of the screw 5 is evenly provided with a number of limit blocks 11 on the same center of the circle, and the inner wall of the sleeve 2 is provided with limit slots 12 corresponding to the limit blocks 11 , the outer wall of the sleeve 2 is evenly provided with a first anti-skid groove 13 .

By adopting the above technical solutions, the disassembly and assembly of the bolts are easier and more convenient, the sleeves will not fall, and the overall strength and the stability of the connection are improved.

In the embodiment of the present invention, the tip of one end of the screw rod 5 is arranged away from the flange 4 .

By adopting the above technical solution, the screw rod is easier to insert, and the installation is more convenient.

In the embodiment of the present invention, an annular gasket 10 is provided on the flange 4 toward the first retaining ring 8 , and the annular gasket 10 is arranged in conflict with the first retaining ring 8 .

By adopting the above technical solution, the stability of the connection between the first retaining ring and the flange is improved, and the service life is prolonged.

In the embodiment of the present invention, a plurality of second anti-skid grooves 14 arranged around the center are provided on the side of the second retaining ring 9 away from the first retaining ring 8 .

By adopting the above technical solution, the sleeve is not easy to slide, and the connection is more stable and firm.

In the embodiment of the present invention, the number of the grooves 7 is set to six.

By adopting the above technical solution, the strength of the bolt head is ensured, and the connection is more stable and easy to rotate.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the protection scope of the present invention.

Claims (5)

1. A plum-shaped and sleeve combination bolt, characterized in that: comprising a bolt (1) and a sleeve (2), the bolt (1) comprising a bolt head (3), a flange (4) and a screw (5), the bolt head (3) is fixedly connected with the screw (5) through the flange (4), the screw (5) is provided with an external thread (6), and the bolt head (3) Plum-shaped arrangement, the bolt head (3) is evenly provided with a plurality of grooves (7), the sleeve (2) is sleeved on the screw (5), and the sleeve (2) is close to the flange One end of (4) is provided with a first retaining ring (8), the end of the sleeve (2) away from the flange (4) is provided with a second retaining ring (9), and the end of the screw (5) is provided with a second retaining ring (9). A plurality of limit blocks (11) on the same circle center are evenly arranged on the outer wall, and limit grooves (12) corresponding to the limit blocks (11) are arranged on the inner wall of the sleeve (2). A first anti-skid groove (13) is evenly arranged on the outer wall of the cylinder (2). 2 . The quincunx and sleeve combined bolt according to claim 1 , wherein the screw rod ( 5 ) is arranged away from the tip of one end of the flange ( 4 ). 3 . 3. A quincunx and sleeve combination bolt according to claim 1, characterized in that: an annular washer (10) is provided on the flange plate (4) toward the first retaining ring (8), and the said flange (4) is provided with an annular washer (10). The annular washer (10) is arranged in conflict with the first retaining ring (8). 4. A quincunx and sleeve combination bolt according to claim 1, characterized in that: a side of the second retaining ring (9) away from the first retaining ring (8) is provided with a plurality of centers arranged around the center the second anti-skid groove (14). 5 . The quincunx type and sleeve combination bolt according to claim 1 , wherein the number of the grooves ( 7 ) is set to 6. 6 .

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