CN107476883A

CN107476883A - A kind of muff for engine

Info

Publication number: CN107476883A
Application number: CN201710579721.6A
Authority: CN
Inventors: 武海光; 刘文涛
Original assignee: Ningbo Friendship Heat Insulation Material Co Ltd
Current assignee: Ningbo Friendship Heat Insulation Material Co Ltd
Priority date: 2017-07-17
Filing date: 2017-07-17
Publication date: 2017-12-15
Anticipated expiration: 2037-07-17
Also published as: CN107476883B

Abstract

The present invention provides a kind of muff for engine, the muff includes heat-insulated body and some groups of fasteners for fastening the heat-insulated body, the heat-insulated body is made up of the first body, bending body and the second body being sequentially connected, first body and second body are in cylindrical structural after being fastened by the fastener, fastener described in every group includes the hook being engaged and an extension spring, described buckle are fixed on the muff with the extension spring by rivet.In above-mentioned muff, the operation with the use of more convenient user of hook and extension spring.

Description

A kind of muff for engine

Technical field

The present invention relates to technical field of engines, more particularly to a kind of muff for engine.

Background technology

Temperature raises after flexible joint, bellows or package duct in engine etc. absorb high-temperature gas, and heat is to surrounding Distribute, in order to prevent heat from causing to damage to the parts of tube circumference, heat shield can be increased outside these pipes and be thermally shielded. But in traditional heat shield, it is outer to be fixed on these pipes that heat shield will carry out buckle, and this snap is unfavorable for user Operation.

The content of the invention

The technical problem to be solved in the present invention is to provide a kind of muff for engine, with user-friendly And engine can be incubated.

The technical scheme is that：A kind of muff for engine, the muff include heat-insulated body and For fastening some groups of fasteners of the heat-insulated body, the heat-insulated body by be sequentially connected the first body, bending body with And second body form, first body and second body fastened by the fastener after be in cylindrical structural, every group The fastener includes the hook being engaged and an extension spring, it is described buckle be fixed on the extension spring by rivet it is described On muff.

Preferably, the heat-insulated body includes internal layer, intermediate layer and outer layer, the internal layer is stainless steel wire stratum reticulare, outside Layer is rubberised layer.

Preferably, the material in the intermediate layer is glass fiber cotton or ceramic fiber cotton or high silica wool or polycrystalline fibre cotton.

Preferably, the resistance to 1200 degree of high temperature of wavefront surface.

Preferably, the intermediate layer is made up of layer of glass fiber cotton and one layer of high silica wool.

Preferably, the mesh number of the stainless steel wire stratum reticulare is 120 mesh.

Preferably, the sewing thread is made up of resistant to elevated temperatures steel wire and aramid line.

Preferably, the fastener and the rivet are made by resistant to elevated temperatures stainless steel material.

Above-mentioned technical proposal has the following advantages that or beneficial effect：In above-mentioned muff, the cooperation of hook and extension spring makes With the operation of more convenient user.The design method of three layers of insulation construction, enhances heat insulation and preservation effect.In addition, the knot of three-stage Structure design method so that whole muff is more bonded pipeline, cuts off the space of heat losses, and it is outer with pipe to add set internal layer surface Effective contact area of wall, noise and vibrations are reduced, when avoiding engine operation caused by shell wall with set internal layer space Resonance.In addition, outer layer uses silica gel cloth so that intermediate layer to be wrapped up, not only environmental protection but also prevent that intermediate layer and user's is direct Contact, is user-friendly.

Brief description of the drawings

With reference to appended accompanying drawing, more fully to describe embodiments of the invention.However, appended accompanying drawing be merely to illustrate and Illustrate, and be not meant to limit the scope of the invention.

Fig. 1 is a kind of structural representation of muff for engine of the invention；

Fig. 2 is a kind of phantom of muff for engine of the invention；

Fig. 3 is the part-structure schematic diagram of the fastener in a kind of muff for engine of the invention；

In accompanying drawing：1st, heat-insulated body；11st, the first body；12nd, body is bent；13rd, the second body；21st, internal layer；22nd, it is middle Layer；23rd, outer layer；31st, link up with；32nd, extension spring；33rd, rivet.

Embodiment

A kind of muff for engine of the invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.

As shown in figure 1, a kind of muff for engine, including：Heat-insulated body 1 and for fastening heat-insulated body 1 Some groups of fasteners.Wherein, heat-insulated body 1 is connected and composed by three parts, the first body 11 for being respectively sequentially connected, bending The body 13 of body 12 and second.Wherein, the first body 11 and the second body 13 be by being in cylindrical structural after fastener buckle, and Bending is covered by being in irregular after fastener buckle, but after the first body 11, the buckle of 12 and second body of bending body 13 A passage is internally formed, to wrap up flexible joint, bellows or package duct.It is worthy of note that because bending occurs in pipeline Situations such as, so using bending body 12, it becomes possible to ensure that whole muff is set in the flexible joint, bellows or package duct On, whole device flexibility is high, is applicable in a variety of actual states.In addition, the length of the first body 11, the second body 13 with And shape of diameter, bending body 12 etc., it can be changed according to the actual demand of user, with user-friendly.

For further, as shown in Fig. 2 the heat-insulated body 1 is made up of three-decker, respectively internal layer 21, intermediate layer 22 And outer layer 23, wherein internal layer 21 is stainless steel wire stratum reticulare, and the mesh number of the stainless steel wire stratum reticulare is preferably 120 mesh.Intermediate layer 22 be glass fiber cotton, the resistance to 1200 degree of high temperature of the glass fiber cotton.Outer layer 23 is silica gel cloth, and the thickness of the silica gel cloth is preferably 0.4cm.

For further, the material in intermediate layer 22 can also be ceramic fiber cotton or high silica wool or polycrystalline fibre cotton.This Outside, the intermediate layer 22 can also be made up of layer of glass fiber cotton and one layer of high silica wool, or by one layer of ceramic fiber cotton and one Layer glass fiber cotton is formed, or is made up of one layer of high silica wool and one layer of polycrystalline fibre cotton.By using two layers of different high temperature resistant Intermediate layer 22 is made in heat-insulated material, can further improve the heat insulation effect in intermediate layer 22, and then improve whole muff Heat insulating ability.In addition, the roughening for material used in intermediate layer 22, if user directly contacts glass fiber cotton or polycrystalline fibre cotton Or ceramic fiber cotton etc., sense of touch are bad and not environmentally, so, intermediate layer 22 is carried out to one layer of parcel again with silica gel cloth, not only Environmental protection and prevent the direct of intermediate layer 22 and user from contacting, be user-friendly.

For further, the sewing thread on the muff is made up of steel wire and aramid line, has resistant to elevated temperatures characteristic.

For further, as shown in figure 3, the fastener includes a hook 31 and an extension spring 32, the hook 31 and extension spring 32 are fixed on muff by rivet 33, and the extension spring 32 is engaged with hook 31, and muff is enclosed on into flexible joint, ripple On line pipe or package duct.Wherein, fastener and rivet 33 are made by resistant to elevated temperatures stainless steel.Button is utilized compared to traditional The operation with the use of more convenient user of the mode that sub-buckle is closed, hook 31 and extension spring 32, further, since the elastic force of extension spring 32 is made With so that the applicable conduit types of the muff are wider.

In above-mentioned muff, the operation with the use of more convenient user of hook 31 and extension spring 32.Three layers of insulation construction Design method, enhance heat insulation and preservation effect.In addition, the structure design mode of three-stage so that whole muff is more bonded Pipeline, the space of heat losses is cut off, add effective contact area of the set surface of internal layer 21 and pipe outer wall, reduce noise and shake It is dynamic, resonance when avoiding engine operation caused by shell wall with set internal layer 21 space.In addition, outer layer 23 use silica gel cloth with Intermediate layer 22 is wrapped up, not only environmental protection but also prevents the direct of intermediate layer 22 and user from contacting, is user-friendly.

For a person skilled in the art, after reading described above, various changes and modifications undoubtedly will be evident. Therefore, appended claims should regard whole variations and modifications of the true intention and scope that cover the present invention as.Weighing Any and all scope and content of equal value, are all considered as still belonging to the intent and scope of the invention in the range of sharp claim.

Claims

1. a kind of muff for engine, it is characterised in that the muff includes heat-insulated body (1) and for fastening Some groups of fasteners of the heat-insulated body (1), the heat-insulated body (1) by be sequentially connected the first body (11), bending cover Body (12) and the second body (13) are formed, and first body (11) and second body (13) are fastened by the fastener Be in afterwards cylindrical structural, fastener described in every group includes the hook (31) and an extension spring (32) being engaged, it is described buckle with The extension spring (32) is fixed on the muff by rivet (33).

2. the muff according to claim 1 for engine, it is characterised in that the heat-insulated body (1) includes interior Layer (21), intermediate layer (22) and outer layer (23), the internal layer (21) is stainless steel wire stratum reticulare, and outer layer (23) is silica gel cloth.

3. the muff according to claim 2 for engine, it is characterised in that the material of the intermediate layer (22) is Glass fiber cotton or ceramic fiber cotton or high silica wool or polycrystalline fibre cotton.

4. the muff according to claim 3 for engine, it is characterised in that the wavefront surface is resistance to 1200 degree high Temperature.

5. the muff according to claim 2 for engine, it is characterised in that the intermediate layer (22) is by one layer of glass Fiber cotton and one layer of high silica wool are formed.

6. the muff according to claim 2 for engine, it is characterised in that the mesh number of the stainless steel wire stratum reticulare For 120 mesh.

7. the muff according to claim 1 for engine, it is characterised in that the sewing thread is by resistant to elevated temperatures steel Silk and aramid line are formed.

8. the muff according to claim 1 for engine, it is characterised in that the fastener and the rivet (33) it is made by resistant to elevated temperatures stainless steel material.