CN215060303U

CN215060303U - Built-in metal, graphite sealing washer take clamp

Info

Publication number: CN215060303U
Application number: CN202023028728.5U
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: 2021-12-07
Anticipated expiration: 2030-12-16

Abstract

The utility model relates to an interior establish metal, graphite sealing washer's area clamp, including ribbon, metal washer, graphite washer, bolt, nut and cushion, two tip of ribbon are equipped with the turn-ups respectively, and the turn-ups is fixed and is formed hollow structure on the ribbon, inlays respectively in the hollow structure and is equipped with the cushion, all is equipped with the through-hole that allows the bolt to pass on hollow structure's both sides lateral wall and the cushion, and the head of bolt is equipped with the platform, through-hole interference fit on platform and a slice cushion, and the bolt afterbody passes the through-hole on hollow structure both sides lateral wall and another slice cushion, with nut thread fixing. In this way, the utility model discloses metal packing ring and graphite packing ring in the band clamp link to each other with the ribbon is reliable, gain good sealed effect, and it is also more convenient to install and dismantle simultaneously.

Description

Built-in metal, graphite sealing washer take clamp

Technical Field

The utility model relates to a pipe connection field, concretely relates to take 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 the 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 instead of 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 fixed two barrels that need to connect and keep two barrels not to contact each other, and the graphite packing ring that supports at the section of thick bamboo wall can play good sealed effect. However, the locking mode of this kind of clamp adopts traditional T type bolt, gudgeon locking mode, and T type bolt, gudgeon are located respectively in the turn-ups's at ribbon both ends hollow structure promptly, make gudgeon and T type bolt be close to each other through lock nut, and then drive the turn-ups at ribbon both ends and be close to each other to reach locking effect. However, the end parts of the trunnion and the T-shaped bolt in the locking mode always have a certain distance, two ends of the binding band can not be in complete contact all the time, meanwhile, the end parts of the trunnion and the T-shaped bolt do not fill the inner space of the hollow structure formed by the flanging of the binding band, the flanging of the binding band is deformed after being stressed, the graphite gasket below the trunnion and the T-shaped bolt is inconsistent in locking force compared with other parts, the locking force is not uniformly distributed on the whole graphite gasket, and therefore the sealing effect of the band clamp is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to overcome the defects and provide a band clamp with good sealing, even distribution of locking force, compact structure, convenient loading and unloading and long service life, which is internally provided with metal and graphite washers.

In order to achieve the above purpose, the utility model discloses a technical scheme is: a belt clamp with a metal and graphite sealing ring arranged inside comprises a belt, a metal washer, a graphite washer, a bolt, a nut and a cushion block, wherein the metal washer is arranged on the inner side of the belt, two bulges are arranged on the inner side of the metal washer, and a concave channel is formed between the two bulges; the graphite gasket is embedded in the groove; the two ends of the binding belt are respectively provided with a flanging, the flanging is fixed on the binding belt to form a hollow structure, the cushion blocks are respectively embedded in the hollow structure, the side walls on the two sides of the hollow structure and the cushion blocks are respectively provided with through holes allowing the bolts to pass, the head of each bolt is provided with a platform, the platform is in interference fit with the through holes in the cushion blocks, and the tail of each bolt passes through the side walls on the two sides of the hollow structure and the other through holes in the cushion blocks and is fixed with the nut in a threaded manner.

Preferably, the number of the bolts is 2, the number of the nuts is 2, and the number of the through holes in each cushion block is 2.

Preferably, the two through holes on the cushion block and the platform of the bolt head are regular polygons.

Preferably, the through hole on the outer side wall of the hollow structure is a regular polygon.

Preferably, the regular polygon is a square or a regular hexagon.

Preferably, a step is arranged on one side, facing the flanging, of the nut.

Preferably, the step is cylindrical.

Preferably, the tail end of the bolt is provided with a device for preventing the nut from falling off.

Preferably, the nut falling-off preventing device is a protruding structure formed by extrusion at the tail end of the bolt.

The utility model discloses in the nut orientation turn-ups one side is equipped with the step, prevents when the dismouting nut, assembly and disassembly tools and ribbon bump.

The through holes in the side wall of the outer side of the hollow structure formed by the turned-over edges at the two ends of the binding belt are regular polygons, so that platforms at the end parts of the bolts can pass through.

After the nut is assembled on the bolt, a protruding structure such as a protruding part or a flange is extruded at the tail end of the bolt through pressing operation, and the nut is prevented from falling off from the bolt accidentally when being disassembled.

The utility model has the advantages that: the utility model discloses two tip of well ribbon are equipped with the turn-ups respectively, the turn-ups is fixed on the ribbon, form hollow structure, it is equipped with the cushion to inlay respectively in the hollow structure, the cushion is full inside hollow structure, when locking the cushion through screw bolt and nut, because the supporting role of cushion, the hollow structure of ribbon tip turn-ups department can not warp or warp lessly, make metal packing ring and inlay to establish at the inboard graphite packing ring locking force evenly distributed of metal packing ring, and then make the graphite packing ring tightly support on section of thick bamboo wall, thereby play good sealed effect.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

FIG. 2 is a partial enlarged view of the flanged band clamp of the present invention;

FIG. 3 is a schematic structural view of the cushion block with a hoop according to the present invention;

fig. 4 is a schematic structural view of the nut with a clamp according to the present invention;

FIG. 5 is an enlarged view of a portion of the band clamp of the present invention;

fig. 6 is a schematic structural view of the band clamp bolt of the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1-6, an embodiment of the present invention includes:

example 1: a belt clamp internally provided with metal and graphite sealing rings comprises a belt clamp 1, a metal washer 20, a graphite washer 21, a bolt 3, a nut 5 and cushion blocks 4 and 41, wherein the metal washer 20 is arranged on the inner side of the belt clamp 1, two

bulges

200 and 201 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; the two ends of the ribbon 1 are respectively provided with a turned-over edge 10, the turned-over edges 10 are fixed on the ribbon 1 to form a hollow structure, cushion blocks 4 and 41 are respectively embedded in the hollow structure, through holes allowing the bolt 3 to pass through are formed in the side walls on the two sides of the hollow structure and the cushion blocks 4 and 41, the head of the bolt 3 is provided with a step 31, the step 31 is in interference fit with the through hole 420 in one cushion block, and the tail of the bolt 3 passes through the through

holes

100 and 420 in the side walls on the two sides of the hollow structure and the other cushion block to be fixed with the nut 5 in a threaded mode.

Example 2: the difference between this embodiment and embodiment 1 is that in this embodiment, there are 2 bolts 3, 2 nuts 5, and 2 through holes 420 on each of the spacers 4 and 41.

Example 3: the difference between this embodiment and embodiment 2 is that in this embodiment, the two through holes 420 on the spacers 4 and 41 and the step 51 on the head of the bolt are both regular polygons.

Example 4: the present embodiment is different from embodiment 3 in that the through hole 100 on the outer side wall of the hollow structure is a regular polygon in the present embodiment.

Example 5: the present embodiment is different from embodiment 4 in that the regular polygon is a square, and may be a regular hexagon.

Example 6: the present embodiment is different from embodiment 5 in that, in the present embodiment, a step 51 is provided on the nut 5 side toward the burring 10.

Example 7: the present embodiment is different from embodiment 6 in that the step 51 is cylindrical in the present embodiment.

Example 8: the difference between this embodiment and embodiment 7 is that in this embodiment, the tail end of the bolt 3 is provided with a device for preventing the nut 5 from falling off, such as a snap spring.

Example 9: the difference between this embodiment and embodiment 7 is that in this embodiment, the means for preventing the nut from falling off is a protruding structure extruded on the tail end of the bolt.

Claims

1. The utility model provides an interior band clamp of establishing metal, graphite sealing washer, includes ribbon, metal packing ring, graphite packing ring, bolt, nut and cushion, its characterized in that: 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; the two ends of the binding belt are respectively provided with a flanging, the flanging is fixed on the binding belt to form a hollow structure, the cushion blocks are respectively embedded in the hollow structure, the side walls on the two sides of the hollow structure and the cushion blocks are respectively provided with through holes allowing the bolts to pass, the head of each bolt is provided with a platform, the platform is in interference fit with the through holes in the cushion blocks, and the tail of each bolt passes through the side walls on the two sides of the hollow structure and the other through holes in the cushion blocks and is fixed with the nut in a threaded manner.

2. The band clamp with an internal metal and graphite sealing ring according to claim 1, wherein there are 2 bolts, 2 nuts and 2 through holes in each spacer.

3. The band clamp with an internal metal and graphite seal ring according to claim 2, wherein the two through holes of the spacer and the platform of the bolt head are regular polygons.

4. The band clamp with an internal metal-graphite seal ring according to claim 3, wherein the through hole in the outer side wall of the hollow structure has a regular polygon shape.

5. The band clamp with an internal metal-graphite seal ring according to claim 4, wherein the regular polygon is a square or a hexagon.

6. The band clamp with an internal metal and graphite seal ring according to claim 5, wherein said nut has a step on a side facing said flange.

7. The band clamp with an internal metal graphite seal ring according to claim 6, wherein said step is cylindrical.

8. The band clamp with an internal metal graphite seal ring according to claim 7, wherein the end of said bolt is provided with means for preventing the nut from falling off.

9. The band clamp with an internal metal graphite seal ring according to claim 8, wherein said means for preventing said nut from falling off is a projection formed by extrusion at the end of said bolt.