CN108506615B

CN108506615B - Hose clamp for clamping flange

Info

Publication number: CN108506615B
Application number: CN201810194187.1A
Authority: CN
Inventors: 张泽; 张炳昌; 陆倍兴; 张建杰; 顾铭杰
Original assignee: Ningbo Changle Hose Clamps Co ltd
Current assignee: Ningbo Changle Hose Clamps Co ltd
Priority date: 2018-03-09
Filing date: 2018-03-09
Publication date: 2022-01-11
Anticipated expiration: 2038-03-09
Also published as: CN108506615A

Abstract

The invention discloses a hose clamp for clamping a flange, which is characterized in that: comprises a strap, at least 2 flange clamping flaps and a locking component; the strap is provided with a strap body, one end of the strap body is provided with a first connecting part, the other end of the strap body is provided with a second connecting part, the first connecting part and the second connecting part are connected through the locking component, and the inner side of the strap body is provided with a track strip along the extension direction of the strap; the flange joint lamella cross-section is "ji" style of calligraphy to be circular-arc extension, flange joint lamella excircle department has the guide slot, the guide slot with track strip block.

Description

Hose clamp for clamping flange

Technical Field

The invention relates to a hoop, in particular to a hose clamp for clamping a flange

Background

The flange is often adopted in the connection of pipeline to connect, and the connection of flange is mostly the bolt fastening, also can adopt the larynx hoop to connect fixedly.

The existing hose clamp is often single in function and free of variability, the shape of a connected flange is fixed, the disassembly is complex, and the hose clamp cannot meet market requirements well.

Disclosure of Invention

The invention mainly aims to provide a hose clamp which is convenient to disassemble and firm and stable in connection.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a hose clamp for clamping a flange comprises a strap, at least 2 flange clamping flaps and a locking assembly; the strap is provided with a strap body, one end of the strap body is provided with a first connecting part, the other end of the strap body is provided with a second connecting part, and the first connecting part and the second connecting part are connected through the locking component; the track strips are arranged on the inner side of the strap body along the extension direction of the strap; the section of the flange clamping flap is in a shape of a Chinese character ji and extends in an arc shape, and the outer circle of the flange clamping flap is provided with a guide groove which is clamped with the track strip; make flange joint lamella can along the strap body removes, so set up, can use the flange joint lamella of different quantity and different structures on a strap, be convenient for connect different flanges.

The locking component comprises a first clamping block, a bolt and a second clamping block, the first clamping block is arranged on the first connecting portion, the second clamping block is arranged on the second connecting portion, the first clamping block is provided with a clamping interface, the second clamping block is provided with a threaded hole, the head of the bolt is clamped on the clamping interface, and the threaded portion of the bolt is connected with the threaded hole.

Preferably, the first connecting portion is formed by bending one end of the strap, the end portion of the strap is fixed to the same end of the strap to form a first annular structure, a first slot is formed in the bent portion along the extension direction of the strap, and the first clamping block is inserted into the first annular structure; the second connecting portion are formed by bending the other end of the strap, the end portion of the strap is fixed to the strap to form a second annular structure, a second groove hole is formed in the bent portion along the extension direction of the strap, and the second clamping block is inserted into the second annular structure in an inserting mode.

Preferably, flange joint lamella cross-section is "ji" style of calligraphy, including the diapire and connect in the first lateral wall and the second lateral wall of diapire both sides, first lateral wall with angle between the diapire is greater than 90 degrees, the second lateral wall with angle between the diapire is greater than 90 degrees. So set up, make flange joint lamella can extrude the flange after screwing up the bolt when joint flange, makes the connection of flange inseparabler.

Preferably, the first clamping block and the second clamping block are both cylindrical, a circular pit is further formed in the first clamping block, the bolt head is cylindrical, and the pit is matched with the bolt head. First joint piece and second joint piece adopt cylindrical structure, make first joint piece with second joint piece can freely rotate in first connecting portion and the second connecting portion, can be along with angle change automatic adjustment at the tightening process of bolt, avoided the deformation of strap, and can rotate second joint piece when taking off the hose clamp, conveniently take off, the pit with the bolt head cooperatees for one section distance of reverse movement is needed when the bolt is dismantled, just can upwards break away from the joint mouth after making the bolt head shift out the pit.

Preferably, the cross section of the track strip is trapezoidal, and the cross section of the guide groove is trapezoidal corresponding to the cross section of the track strip.

The invention has the advantages that:

(1) different flanges can be connected by inserting different flange connecting flaps on the strap, so that different connection requirements are met, and the use mode of the hose clamp is more diversified;

(2) the first connecting block is provided with a clamping interface, so that the hose clamp is more convenient to disassemble and assemble.

Drawings

FIG. 1 is a perspective view of a preferred embodiment according to the present invention;

FIG. 2 is an elevational view of a preferred embodiment according to the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2 in accordance with a preferred embodiment of the present invention;

FIG. 4 is a perspective view of a flanged coupling flap according to a preferred embodiment of the present invention;

FIG. 5 is a perspective view of a band according to a preferred embodiment of the present invention;

fig. 6 is an exploded view of a locking assembly according to a preferred embodiment of the present invention.

The clamping band comprises a clamping band body 1, a clamping band body 11, a track bar 12, a first connecting portion 13, a first slotted hole 131, a second connecting portion 14, a second slotted hole 141, a first flange clamping flap 21, a second flange clamping flap 22, a bottom wall 221, a guide groove 2211, a first side wall 222, a second side wall 223, a third flange clamping flap 23, a first clamping block 31, a pit 311, a clamping interface 312, a second clamping block 32 and a bolt 33.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

A hose clamp for clamping flanges as shown in fig. 1 to 2, which comprises a strap 1, a first flange clamping flap 21, a second flange clamping flap 22, a third flange clamping flap 23 and a locking component; the strap 1 is provided with a strap body 11, one end of the strap body 11 is provided with a first connecting portion 13, the other end of the strap body 11 is provided with a second connecting portion 14, the first connecting portion 13 and the second connecting portion 14 are connected through the locking component, and the inner side of the strap body 11 is provided with a track bar 12 along the extension direction of the strap; the section of the flange clamping flap 22 is in a shape of a Chinese character ji and extends in an arc shape, a guide groove 2211 is arranged at the outer circle of the flange clamping flap 22, and the guide groove 2211 is clamped with the track bar 12;

combine fig. 6 to show, locking Assembly includes first joint piece 31, bolt 33 and second joint piece 32, first joint piece 31 set up in first connecting portion 13, second joint piece 32 set up in second connecting portion 14, first joint piece 31 has joint interface 312, second joint piece 32 has the screw hole, bolt 33 head joint in joint interface 312 department, the screw portion of bolt 33 with the screw hole is connected.

With reference to fig. 5, the first connecting portion 13 is formed by bending one end of the strap 1, the end of the strap 1 is fixed to the same end of the strap 1 to form a first annular structure, a first slot 131 is formed at the bent portion along the extending direction of the strap 1, and the first clamping block 31 is inserted into the first annular structure; the second connecting portion 14 is formed by bending the other end of the strap 1, the end portion of the strap is fixed on the strap 1 to form a second annular structure, a second slot 141 is formed in the bent portion along the extending direction of the strap 1, and the second clamping block 32 is inserted into the second annular structure.

As shown in fig. 4, the cross section of the flange clamping flap is in a shape of a Chinese character ji, and includes a bottom wall 221, and a first side wall 222 and a second side wall 223 connected to two sides of the bottom wall 221, an angle between the first side wall 222 and the bottom wall 221 is greater than 90 degrees, and an angle between the second side wall 223 and the bottom wall 221 is greater than 90 degrees.

The first clamping block 31 and the second clamping block 32 are cylindrical, a circular concave pit 311 is further formed in the first clamping block 31, the head of the bolt is cylindrical, and the concave pit 311 is matched with the head of the bolt.

The section of the track strip 12 is trapezoidal, and the section of the guide groove is trapezoidal corresponding to the section of the track strip 12.

And (4) selecting matched flange clamping flaps according to the shape of the flange, inserting the flange clamping flaps on the hoop belt, and locking the bolts to realize flange connection. When the hose clamp needs to be unfastened, the bolt head can be separated from the clamping interface 312 by reversely rotating the section of the bolt, so that the quick separation is realized.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A hose clamp for clamping a flange is characterized in that: comprises a strap (1), at least 2 flange clamping flaps and a locking component; the strap (1) is provided with a strap body (11), one end of the strap body (11) is provided with a first connecting portion (13), the other end of the strap body (11) is provided with a second connecting portion (14), the first connecting portion (13) and the second connecting portion (14) are connected through the locking assembly, and the inner side of the strap body (11) is provided with a track bar (12) along the extension direction of the strap; the section of the flange clamping flap (22) is in a shape of a Chinese character ji and extends in an arc shape, a guide groove (2211) is formed in the outer circle of the flange clamping flap (22), and the guide groove (2211) is clamped with the track strip (12);

locking Assembly includes first joint piece (31), bolt (33) and second joint piece (32), first joint piece (31) set up in first connecting portion (13), second joint piece (32) set up in second connecting portion (14), first joint piece (31) have joint interface (312), second joint piece (32) have the screw hole, bolt (33) head joint in joint interface (312) department, the screw portion of bolt (33) with the screw hole is connected.

2. A throat band for a clamp flange according to claim 1, wherein: the first connecting part (13) is formed by bending one end of the strap (1), the end part of the strap (1) is fixed on the same end of the strap (1) to form a first annular structure, a first slotted hole (131) is formed in the bending position along the extension direction of the strap (1), and the first clamping block (31) is inserted into the first annular structure; the second connecting portion (14) is formed by bending the other end of the strap (1), the end portion of the strap is fixed to the strap (1) to form a second annular structure, a second slotted hole (141) is formed in the bending position along the extending direction of the strap (1), and the second clamping block (32) is inserted into the second annular structure.

3. A throat band for a clamp flange according to claim 2, wherein: flange joint lamella cross-section is "ji" style of calligraphy, including diapire (221) and connect in first lateral wall (222) and second lateral wall (223) of diapire (221) both sides, first lateral wall (222) with the angle between diapire (221) is greater than 90 degrees, second lateral wall (223) with the angle between diapire (221) is greater than 90 degrees.

4. A throat band for a clamp flange according to claim 3, wherein: first joint piece (31) with second joint piece (32) all are cylindrically, still be provided with circular pit (311) on first joint piece (31), the bolt head is cylindrically, pit (311) with the bolt head cooperatees.

5. A throat band for a clamp flange according to claim 1, wherein: the cross section of the track strip (12) is trapezoidal, and the cross section of the guide groove is trapezoidal corresponding to the cross section of the track strip (12).