CN1121548C

CN1121548C - Evaporation internal combustion engine water tank

Info

Publication number: CN1121548C
Application number: CN 00119119
Authority: CN
Inventors: 蒋尧夫
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-17
Filing date: 2000-06-17
Publication date: 2003-09-17
Anticipated expiration: 2020-06-17
Also published as: CN1272591A

Abstract

The present invention relates to a water tank of an evaporation type internal combustion engine. The lower edge of a funnel of the water tank is provided with a connecting flange which corresponds to a window of the water tank, and the funnel of the water tank is tightly clamped on the water tank by elastic deformation to realize locating connection. A plastic nylon funnel can be directly arranged on the water tank, and a stamped metal plate funnel is reliable after a sealing rubber ring is additionally arranged. The screwing helix angle of the funnel and a locating boss ensure that the present invention is convenient and precise for assembly and disassembly. The water tank realizes the screw bolt-free locating connection of the funnel of the water tank with the water tank, reduces weight, saves energy and has beautiful appearance. The water tank is especially suitable for various single-cylinder evaporation type diesel engines and is applied to various water tanks for casting, die casting, stamping, injection molding, etc.

Description

A kind of water tank of evaporation internal combustion engine

The invention relates to a kind of water tank of evaporation internal combustion engine, particularly the water tank of single-cylinder horizontal internal-combustion engine.

The watered cup of the water tank of internal-combustion engine of present known evaporative heat loss is that the location is screwed onto above the tank upper cover or one is made in the fusion of the loam cake of direct and split type water tank.Watered cup and tank upper cover that Chinese patent ZL98214163.7ZL98246506.8 ZL93237712.2 ZL90219981.1 ZL90221192.7 discloses on the part water tank are located structure and the structure that is spirally connected, and contain the tank funnel that integral body is made on the split type tank upper cover.Existing tank funnel and water tank are located by connecting and will use bolt to tighten, and when tank upper cover uses the metal sheet punching press to make, connect the difficulty that is manufactured with of screw.Using bolt to tighten increases the many again consumption installation times of cost.

The purpose of the invention provides a kind of water tank of evaporation internal combustion engine, this water tank can realize that tank funnel also can be located by connecting on the tank upper cover easily without the bolt connection, mounting or dismounting are convenient, save cost, the suitable especially water tank watered cup that is applied in sheetmetal punching press water tank and sheetmetal punching press is located by connecting on the scheme, also can be applied in being located by connecting between punching press or injection moulding watered cup and various water tank.

The purpose of the invention be achieved in that water tank watered cup periphery have with tank upper cover on the shape that is complementary of window edge, with pack into window on the tank upper cover of funnel, periphery is gone up and after the flange that is provided with embeds window edge on the water tank funnel is located by connecting on the tank upper cover below the funnel.Tank funnel can be designed to circle, it is circular that the window on the tank upper cover also is designed to coupling, after the tank funnel flange that is located by connecting is put into window on the tank upper cover, below the rotatable boss that snaps in the loam cake window, is located by connecting funnel on water tank.Can also positioning boss be set at the place of compressing that is located by connecting, can be located by connecting more accurately, make the design axis alignment of tank funnel and water tank integral body, be connected firmly and more attractive in appearance.Also tank funnel can be become rectangle with window design on the tank upper cover, after the funnel flange snaps in window on the tank upper cover, the elasticity sex change of its generation makes funnel firmly be connected on the water tank, because the positioning action of rectangular design, funnel can not rotate, and also can make the design axis alignment of funnel and water tank.During dismounting, prize funnel with bottle opener and get final product.Circular funnel also reliably produces the window that the flange of resiliently deformable snaps on the tank upper cover and realizes being located by connecting and not screwing design, only depend on the tension force of resiliently deformable flange realize to connect, also can add positioning boss and make between funnel and water tank not occurred level swing offset.Can also place the elastic packing cushion rubber at funnel and water tank junction surface place, the performance of cushion rubber resiliently deformable is more excellent more than the deformation behavior at stamping part and moulding edge, can make the convenient and realization reliably of being located by connecting of funnel and water tank.

Adopt technique scheme to realize being located by connecting of tank funnel and water tank, the fastening piece that can be located by connecting can only depend on the snap action of funnel and water tank joint flange to realize being located by connecting.On the large-scale industrial production production line, assembling rhythm and the time compole tight, this snap-in funnel fit can be removed the workman and gets screw, puts screw, tightens action such as screw, improves work efficiency.Because the minimizing of fastening piece is until removing this realization of goal, the minimizing of number of spare parts directly causes purchasing the decline with administration cost.Because the resiliently deformable that takes place when packing into is also little, adopt to screw out or prize mode with bottle opener to dismantle tank funnel also very convenient.If also put into O-ring seal when being located by connecting, then mounting or dismounting can be convenient reliable.When adopting the thick even thinner metallic plate punching of 1.5mm to make water tank, be spirally connected as still doing the location with prior art, the weldering nut easily causes the box deformation distortion on tank lid, increases cost and destroys attractive in appearance.As use the aluminium alloy plate punching press, then want the welded nut cost bigger more difficult.And use the invention, then take refuge and become easy.Even for existing water tank, this Placement by flange chucking also can be used, and punching press or injection moulding funnel can both conveniently install to various die casting, punching press, injection moulding water tank and get on.

Below in conjunction with embodiment the invention is further specified:

Fig. 1 is the sectional drawing of a kind of single-cylinder horizontal diesel engine radiator of the invention embodiment;

Fig. 2 is the plan view of a kind of single-cylinder horizontal diesel engine radiator of the invention embodiment;

Fig. 3, Fig. 4 are the enlarged views of the different details of E portion of the invention embodiment single-cylinder horizontal diesel engine radiator;

Fig. 5, Fig. 6 are the enlarged views of the different details of F portion of the invention embodiment single-cylinder horizontal diesel engine radiator;

Fig. 7 is the tank funnel that supplies the filler pipe access of another embodiment's single-cylinder horizontal diesel engine radiator of the invention and the sectional drawing of water tank connection part;

Fig. 8 is the plan view of tank funnel and water tank joint among Fig. 7.

Among the figure: 1, tank upper cover 2, tank funnel 3, water tank lower body 4, water flowing window 7, loam cake is along 8, funnel hole 14, hole 19 is located by connecting, flange 20, crimping limit, location 21, funnel dash edge mouth 22, cushion rubber 23, boss 28, boss 33, loam cake window bead flange 34, loam cake window bead groove 61, lifting bolt hole 70, lower body bead 121, hole H is located by connecting, the cushion rubber thickness G, the funnel flange embeds the vertical depth M of tank lid window edge, the protruding leakage edge of funnel embeds the horizontal depth N of tank lid window edge, can insert the gap a of bottle opener, helix angle.

In the water tank that Fig. 1, Fig. 2 provide, penetrate bolt in the hole 14 that is located by connecting water tank lower body 3 is located by connecting on the diesel-engine body, the cooling water chamber on the water flowing window 4 corresponding bodies.Can hold in the lifting bolt hole 61 and pass lifting bolt.Be located by connecting hole 121 for connecting fuel tank usefulness.Loam cake bead 7 is located by connecting with lower body bead 70.Circular tank funnel 2 and tank upper cover 1 are the metal sheet drawing among the figure.The tank funnel flange 19 that three tank upper cover window bead grooves 34 among Fig. 2 can hold three correspondences is put into from the top down, rotatable hopper 2 in the horizontal direction then, flange 19 is embedded below the boss 33, the be positioned resiliently deformable chucking of crimping

limit

20 and 19 generations of flange of funnel 2 is fixed on the boss 33, realizes being located by connecting without fastening piece.Oppositely horizontally rotate funnel, then can split out.Funnel hole 8 is for adding water and evaporative heat loss.When adding water, prevents in funnel dash edge mouth 21 leaking and strengthening the funnel bulk strength.Crimping limit, location 20 is that metal sheet is made into bilayer thickness when folding down, and can compress tank upper cover effectively, can make the sectional shape with the O-ring seal coupling.

Fig. 3 is a kind of details amplification profile of E portion among Fig. 1.The thickness H of cushion rubber 22 can be compressed the height G that contracts to less than the boss on the water tank flange 33 28 by the workman, workmans loosen the pressure to funnel 2 after boss 28 location snap in funnel flange 19, cushion rubber 22 recovers thickness H, and funnel 2 promptly reliably is located by connecting on the tank upper cover 1.

Fig. 4 is another details amplification profile of E portion among Fig. 1.To tank upper cover 1, go to more easy and convenient accurate location in order to make the workman assemble funnel 2, increased helix angle a, the workman puts into funnel 2 on the tank upper cover, when horizontally rotating funnel 2 clockwise, resiliently deformable is taken place to the height G less than boss 23 to pressing down the thickness H that makes cushion rubber 22 in funnel 2, can make boss 23 embed corresponding pit on the tank upper cover window bead 33, loosen pressure this moment, funnel 2 is promptly fixedly positioning and is connected on the water tank 1.In this assembly process, being provided with of helix angle a can alleviate labor strength, and screw-in power can reduce, and oppositely dismounting is also more convenient.

Fig. 5 is a kind of details amplification profile of F portion among Fig. 1, shows the metal sheet punching press and makes the crimping limit, location 20 of funnel 2, the details of flange 19.The resiliently deformable of cushion rubber 22 can be blocked water and not allow and leak, and again can tensioning pushes down tank funnel and is located by connecting on water tank.Block the deficiency of funnel on water tank for remedying the elastic force that only depends on the sheetmetal distortion to produce without cushion rubber, prevent that slight gap is leaked between sheet metal and sheet metal, add the boss location, can improve Location accuracy again by noise reduction sound with the cushion rubber embedding.

Fig. 6 is the another kind of details amplification profile of F portion among Fig. 1, shows the plastic production funnel and is loaded on connection details on the water tank.The horizontal depth M that flange 19 snaps in the bead boss 33 of loam cake 1 is exactly the resiliently deformable gap of flange 19, and with upwards prizing crimping limit, location 20 behind the bottle opener insertion gap N, the distance that makes flange 19 generation resiliently deformables is above M, and funnel is promptly split out.This structure also is suitable for the punching press funnel, can be used on the various water tanks, being located by connecting of circle, rectangle, special-shaped various funnels and various water tanks, as long as get the reasonable section shape of suitable amount of deformation M and flange 19, tank funnel slightly firmly is loaded on above the water tank once clapping reliably to locate by the workman.And add the position that rational gap N and plane arrangement sets are inserted bottle opener, can prize funnel easily equally.Also can quote the technological scheme of establishing among the ZL992152992, below crimping limit, location 20, establish an annular groove and embed cushion rubber, improve sealing effect for the annular groove that embeds O-ring seal.

Be a kind of deformation design of watered cup 2 among Fig. 7, Fig. 8, purpose is can put leather hose to add water and ventilative on funnel 2, is mainly three-wheel transporter and uses.Provided window on the tank upper cover 1 structure that turnup is connected with funnel 2 that makes progress among the figure.Because the thickness H of cushion rubber 22 can be by artificial compression to less than clearance G, the flange 19 of funnel 2 is put into groove 34 after, loose one's grip after screwing in below the boss 33, the effect of cushion rubber 22 elastic forces is promptly finished and is located by connecting, and adds the positioning boss better effects if.

Above-mentioned various tank funnel is connected details with assembling between water tank; only specifically depict a part of embodiment of the invention; according to the principle of technique scheme, those of ordinary skill can be combined into more embodiment easily, should also belong to the protection domain of the invention.

Claims

1, a kind of water tank of evaporation internal combustion engine, the window [4] that communicates with cooling water in the body is arranged at this water tank lower body [3] bottom, tank upper cover [1] is located by connecting into integrated water tank with lower body [3] or integral body casts out tank shell, bolt passes the hole that is located by connecting [14] and water tank can be assemblied on the internal combustion (IC) engine airframe, can adorn watered cup [2] on the water tank, it is characterized in that:

Have on the tank funnel [2] and block the flange [19] that adds water window edge [33] on the tank upper cover [1], have on the tank upper cover [1] and can be added water window edge [33] by what blocked the flange of tank funnel [2] [19].

2, water tank according to claim 1 is characterized in that: on the flange [19] of tank funnel [2] positioning boss [23] is arranged.

3, water tank according to claim 1 is characterized in that: adding of tank upper cover [1] has positioning boss [28] on the water window edge [33].

4, water tank according to claim 1 is characterized in that: adding of the crimping limit, location [20] of tank funnel [2] and tank upper cover [1] has O-ring seal [22] between water window edge [33].