CN114636033A

CN114636033A - Built-in metal, graphite sealing washer take clamp

Info

Publication number: CN114636033A
Application number: CN202011488066.1A
Authority: CN
Inventors: 理查德·格林
Original assignee: Funwick Precision Technology Kunshan Co ltd
Current assignee: Funwick Precision Technology Kunshan Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2022-06-17

Abstract

The invention relates to a belt clamp internally provided with a metal and graphite sealing ring, which comprises a binding belt, a fastening assembly, a metal gasket and a graphite gasket; the metal gasket is arranged on the inner side of the binding belt, two bulges are arranged on the inner side of the metal gasket, the bulges are provided with top planes, and a concave channel is formed between the two bulges; a graphite gasket is embedded in the groove channel, and the height of the graphite gasket is greater than that of the protrusion; the edges of two sides of the metal gasket extend out of the flanges respectively towards the outer side of the binding belt, and the flanges and the metal gasket surround the binding belt from three sides. Through the mode, the metal washer and the graphite washer in the band clamp are reliably connected with the band, so that the band clamp is convenient and efficient to mount and dismount; meanwhile, the top plane arranged on the bulge is matched with the graphite gasket, so that high-degree sealing connection of the cylinder body is realized.

Description

Built-in metal, graphite sealing washer take clamp

Technical Field

The invention relates to the field of pipeline connection, in particular to a belt clamp.

Background

The clamp is a connection device for connecting grooved pipes, valves and pipe fittings. In an exhaust system and a power system of an automobile, a metal hose is generally accepted and used in domestic and foreign industries as an upgrading product of a traditional corrugated pipe. The metal hoses are connected in various manners, and the metal hoses are directly welded or connected through flanges in a conventional manner, but the direct welding manner causes troubles in future maintenance or replacement and large workload, and the flange connection avoids the problems, but still does not solve the troubles of heaviness, difficulty in installation, difficulty in disassembly and time consumption. Researchers have therefore designed band clamps to replace flange connections.

CN201720458341.2 discloses an interior band clamp of establishing metal, graphite sealing washer, be applicable to two barrel and connect to the barrel that will connect is not complete contact between, needs to leave the clearance, and under this condition, use this band clamp to have good effect, the ribbon can be fine fixed need two barrels of connecting and keep two barrels not to contact each other, tightly supports the graphite packing ring that the section of thick bamboo wall can play good sealed effect. On one hand, however, the ribbon and the metal washer of the clamp are separately arranged, so that a plurality of persons are required to cooperate to operate during installation, and the clamp cannot be operated by one person, or the metal washer and the ribbon are welded and fixed, and the shape deformation of the metal washer is limited, so that the metal washer is not beneficial to installation; on the other hand, the bulge arranged on the metal gasket is in a hill shape, and the graphite gasket is extruded from the top of the bulge under the action of pressure, so that the space on one side of the hill-shaped downhill is enlarged, and the sealing effect is easily lost.

Disclosure of Invention

In view of the above problems in the prior art, the main objects of the present invention are: the utility model provides an interior band clamp of establishing metal, graphite packing ring, this inboard metal packing ring both sides edge of band clamp is equipped with the flange, makes metal packing ring and ribbon not phase separation, realizes the convenient installation of band clamp, and two archs are equipped with the top plane on the metal packing ring simultaneously, and even graphite packing ring pressurized deformation gets into the top plane region, still can play sealed effect.

In order to achieve the purpose, the technical scheme disclosed by the invention is as follows: a belt clamp internally provided with metal and graphite sealing rings comprises a belt, a fastening assembly, a metal gasket and a graphite gasket; the metal gasket is arranged on the inner side of the binding belt, two bulges are arranged on the inner side of the metal gasket, and a concave channel is formed between the two bulges; the graphite gasket is embedded in the groove channel, and the height of the graphite gasket is greater than that of the protrusion; the protruding top plane that is equipped with, metal packing ring both sides edge stretches out the flange to the ribbon outside respectively, the flange with metal packing ring surrounds from trilateral the ribbon.

Preferably, two end parts of the ribbon are respectively provided with a flange, the flanges are fixed on the ribbon to form a hollow structure, and a first lock hole and a second lock hole are formed on the flanges; the fastening assembly comprises a bolt, a nut, a first cushion block and a second cushion block, the first cushion block and the second cushion block are respectively arranged in the hollow structure, the bolt sequentially penetrates through the first lock hole, the first cushion block and the second cushion block, which are turned over at one side end of the belt, the second lock hole, the second cushion block, which is turned over at the other side end of the belt, and the first lock hole and the second cushion block are fixed in a threaded manner.

Preferably, one end of the metal washer is connected with the other end in a sliding mode.

Preferably, the fastening assemblies are provided in two groups.

Preferably, the length of the overlapped part of the two end parts of the metal gasket is 1/16-1/8 of the perimeter of the metal gasket; the height ratio of the graphite gasket to the protrusions is (1.5-2):1, and the height difference is less than 5 mm.

Preferably, the materials of the cable tie, the fastening assembly and the metal washer are 304 stainless steel.

Preferably, the carbon content of the graphite gasket is greater than or equal to 98%, and the sulfur content is less than 0.03%.

Preferably, the ribs are continuously arranged along two side edges of the metal gasket.

Preferably, the flanges are arranged at intervals along two side edges of the metal gasket.

Preferably, the tail end of the rib is crimped on the outer side of the cable tie after being bent.

The invention has the beneficial effects that: the flanges arranged on the edges of the two sides of the metal gasket are used for enabling the ribbon and the metal gasket to form an integrated assembling structure, so that the ribbon and the metal gasket are more convenient to mount and dismount. Meanwhile, the metal gasket is provided with two bulges, and the bulges are provided with top planes instead of the bulges of the hill structures, so that the graphite gasket can still have a good sealing effect even if the graphite gasket is deformed under pressure to enter the top plane area.

Drawings

The invention is further illustrated with reference to the following figures and examples.

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

fig. 2 is a cross-sectional view of a metal gasket 2 according to the present invention;

fig. 3 is a cross-sectional view of a band 1 with a band clamp, a metal washer 2 and a graphite washer 21 according to the present invention;

figure 4 is a cross-sectional view of a band 1, a metal washer 2 and a graphite washer 21 according to another embodiment of the invention;

fig. 5 is an enlarged partial view of the fastener assembly of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

Referring to fig. 1-5, an embodiment of the present invention includes:

example 1: a belt clamp with a metal and graphite sealing ring arranged inside comprises a belt 1, a fastening assembly, a metal washer 20 and a graphite washer 21; the metal washer 20 is arranged on the inner side of the ribbon 1, two bulges are arranged on the inner side of the metal washer 20, and a concave channel 202 is formed between the two

bulges

200 and 201; a graphite gasket 21 is embedded in the concave channel 202, and the height of the graphite gasket 21 is greater than that of the

protrusion

200 or 201; the

bulges

200 and 201 are provided with top planes, two side edges of the metal washer 20 respectively extend out of the flanges 7 towards the outer side of the ribbon, and the flanges 7 and the metal washer 20 surround the ribbon 1 from three sides.

Example 2: the difference between the embodiment and the embodiment 1 is that in the embodiment, two end parts of the ribbon 1 are respectively provided with a flange 10, the flanges 10 are fixed on the ribbon 1 to form a hollow structure, and a first lock hole and a second lock hole are formed on the flanges 10; the fastening assembly comprises a bolt 3, a nut 5, a first cushion block 4 and a second cushion block 41, the first cushion block 4 and the second cushion block 41 are respectively arranged in the hollow structure, the bolt 3 sequentially penetrates through a first lock hole of a flanging 10 at one side end part of the ribbon 1, the first cushion block 4 and the second cushion block, a second lock hole of a flanging at the other side end part of the ribbon is fixed with the nut 5 through threads after the first lock hole of the flanging at the other side end part of the ribbon 1.

Example 3: the difference between this embodiment and embodiment 2 is that in this embodiment, the metal washer is bent round into an O-shape, and one end is slidably connected to the other end.

Example 4: the difference between this embodiment and embodiment 3 is that in this embodiment, two sets of fastening members are provided

Example 5: the difference between the embodiment and the embodiment 4 is that in the embodiment, the length of the overlapped part of the two end parts of the metal gasket is 1/16 to 1/8 of the perimeter of the metal gasket; the height ratio of the graphite gasket to the protrusions is (1.5-2):1, and the height difference is less than 5 mm.

Example 6: the difference between this embodiment and embodiment 5 is that in this embodiment, the material of the tie, the fastening assembly, and the metal washer is 304 stainless steel.

Example 7: the difference between this example and example 6 is that in this example, the carbon content of the graphite gasket 21 is 98% or more, and the sulfur content is less than 0.03%.

Example 8: this embodiment is different from embodiment 7 in that ribs 7 are continuously provided along both side edges of the metal gasket 2 in this embodiment.

Example 9: the difference between this embodiment and embodiment 7 is that in this embodiment, the ribs 7 are disposed at intervals along both side edges of the metal gasket 2.

Example 10: the difference between this embodiment and embodiment 9 is that in this embodiment, the end of the rib is crimped to the outside of the band after being bent (see fig. 4).

Claims

1. A belt clamp internally provided with metal and graphite sealing rings comprises a belt, a fastening assembly, a metal gasket and a graphite gasket; the metal gasket is arranged on the inner side of the binding belt, two bulges are arranged on the inner side of the metal gasket, and a concave channel is formed between the two bulges; the graphite gasket is embedded in the groove channel, and the height of the graphite gasket is greater than that of the protrusion; the method is characterized in that: the protruding top plane that is equipped with, metal packing ring both sides edge stretches out the flange to the ribbon outside respectively, the flange with metal packing ring surrounds from trilateral the ribbon.

2. The belt clamp with the metal and graphite sealing ring arranged inside as claimed in claim 1, wherein two ends of the belt are respectively provided with a flange, the flanges are fixed on the belt to form a hollow structure, and a first lock hole and a second lock hole are formed on the flanges; the fastening assembly comprises a bolt, a nut, a first cushion block and a second cushion block, the first cushion block and the second cushion block are respectively arranged in the hollow structure, the bolt sequentially penetrates through the first lock hole, the first cushion block and the second cushion block, which are turned over at one side end of the belt, the second lock hole, the second cushion block, which is turned over at the other side end of the belt, and the first lock hole and the second cushion block are fixed in a threaded manner.

3. A band clamp with an internal metal, graphite seal ring according to claim 2, wherein said metal washer is slidably connected at one end to the other end.

4. A band clamp with built-in metal, graphite sealing rings according to claim 3, wherein said fastening assemblies are provided in two groups.

5. The band clamp with an internal metal and graphite sealing ring according to claim 4, wherein the length of the overlapped portion of the two end portions of the metal gasket is 1/16 to 1/8 of the circumference of the metal gasket; the height ratio of the graphite gasket to the protrusions is (1.5-2):1, and the height difference is less than 5 millimeters.

6. The band clamp with the metal and graphite sealing ring inside as claimed in claim 5, wherein the material of said band, said fastening assembly and said metal washer is 304 stainless steel.

7. The band clamp with an internal metal graphite seal ring according to claim 6, wherein said graphite gasket has a carbon content of 98% or more and a sulfur content of less than 0.03%.

8. The band clamp with an internal metal graphite seal ring according to claim 7, wherein said ribs are continuously provided along both side edges of said metal washer.

9. The band clamp with an internal metal graphite seal ring according to claim 7, wherein said retaining edges are spaced from both side edges of said metal washer.

10. The band clamp with the metal and graphite sealing ring inside as claimed in claim 9, wherein the end of the rib is bent and pressed on the outside of the band.