CN205966207U - Air cap for spray gun - Google Patents

Abstract

The utility model provides an air cap for spray gun, includes: a gas passage has been seted up along the axial of air cap main part to the air cap main part, be provided with in the gas passage with the becket of gas passage shape adaptation, the becket is provided with one, the becket be conical loop to be constructed, the lateral surface of becket is balanced with the gas passage, the becket adopts the same material to make with the air cap main part, the becket sets up in the air cap main part and rather than integrated into one piece. The utility model discloses in, the becket only is provided with one, sets up back in the gas passage with the becket, covers the internal surface of whole gas passage by the becket, can avoid appearing in the gas passage condition in gap so completely, and this structure can improve the stability of high pressure draught circulation. Through the structure design, the utility model discloses higher structural strength not only has to, gas flow's stability can obtain great degree ground and promote.

Description

Spray gun air cap

Technical field

This utility model is related to abrasive blast equipment technical field, more specifically, particularly to a kind of spray gun air cap.

Background technology

Spray gun is a kind of equipment being discharged rapidly by the use of liquid or compressed air as power, is generally used for spraying and clear Clean.

Spray gun typically all can be provided with an air cap passing through for air-flow, because air-flow is high pressure draught, because This, it is very serious for the erosive wear of air cap.Typically all can be in the gas passage of air cap in conventional art Multiple beckets are set, using becket, air cap are protected, after becket occurs more serious abrasion, only need Becket to be changed.

Utility model content

(1) technical problem

Existing air cap adopts the structure of setting becket, although it can reduce the mill of air cap to a certain extent Damage, but, the assembly precision due to being provided with becket in gas passage, between becket, between becket and air cap Relatively low, once gap occurs between becket and air cap, then can cause very big impact to the circulation of high pressure draught.

(2) technical scheme

This utility model provides a kind of spray gun air cap, including：

Air cap main body, described air cap main body is metal integral structure, and described air cap main body is pyramidal structure, Axial direction along described air cap main body offers a gas passage, and described air cap main body includes miner diameter end and big footpath End, described gas passage from described miner diameter end to described bigger diameter end diameter incremented by successively, be provided with described gas passage with The becket of described gas passage shape adaptation, described becket is provided with one, and described becket is the ring structure of taper, institute State the lateral surface of becket and described gas passage offsets, on the end face of described bigger diameter end, be provided with spline structure；

Described becket is made using identical material with described air cap main body；

Described becket is arranged in described air cap main body and is integrally formed with it.

Preferably, the medial surface in described becket is coated with ceramic layer.

(3) beneficial effect

The spray gun air cap that this utility model provides, its overall structure is identical with traditional air cap, but, this Air cap main body is made using identical metal material by utility model with becket, and, in this utility model, becket It is provided only with one, after becket is arranged in gas passage, by the inner surface of the whole gas passage of metal ring cover, so The situation that gap occurs in gas passage can be avoided completely, this structure can improve the stability of high pressure draught circulation.Separately Outward, in this utility model, gas passage its diameter incremented by successively from miner diameter end to bigger diameter end, the structure of becket is led to gas The planform adaptation in road, so can improve the assembly precision between becket and air cap main body, reduce metal further The probability in gap occurs between ring and air cap main body.By said structure design, this utility model not only has higher Structural strength, and, the stability of gas circulation accesses and largely lifted.

Brief description

Fig. 1 is the structural representation of spray gun air cap in this utility model embodiment；

In FIG, component names and the corresponding relation of accompanying drawing number are：

Air cap main body 1, gas passage 2, becket 3, ceramic layer 4,

Miner diameter end a, bigger diameter end b.

Specific embodiment

With reference to the accompanying drawings and examples embodiment of the present utility model is described in further detail.Following examples For this utility model is described, but can not be used for limiting scope of the present utility model.

In description of the present utility model, unless otherwise stated, " multiple " are meant that two or more；Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of instruction such as " afterbody " or position close System is based on orientation shown in the drawings or position relationship, is for only for ease of description this utility model and simplifies description, rather than Indicate or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not It is interpreted as to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " etc. are only used for describing purpose, and can not It is interpreted as indicating or imply relative importance.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary.For this For the those of ordinary skill in field, concrete meaning in this utility model for the above-mentioned term can be understood with concrete condition.

Refer to Fig. 1, Fig. 1 is the structural representation of spray gun air cap in this utility model embodiment.

This utility model provides a kind of spray gun air cap, including：Air cap main body 1, air cap main body 1 is metal system Integral structure, air cap main body 1 is pyramidal structure, and the axial direction along air cap main body 1 offers a gas passage 2, air Cap main body 1 includes miner diameter end a and bigger diameter end b, gas passage 2 from miner diameter end a to bigger diameter end b diameter incremented by successively, in gas It is provided with the becket 3 with gas passage 2 shape adaptation, becket 3 is provided with one, and becket 3 is from air cap in body passage 2 The miner diameter end a of main body 1 is extended to the bigger diameter end b of air cap main body 1, and becket 3 is the ring structure of taper, becket 3 Lateral surface is offseted with gas passage 2, is provided with spline structure on the end face of bigger diameter end b；Becket 3 is adopted with air cap main body 1 Made with identical material；Becket 3 is arranged in air cap main body 1 and is integrally formed with it.

Specifically, the medial surface in becket 3 is coated with ceramic layer 4.

The spray gun air cap that this utility model provides, its overall structure is identical with traditional air cap, but, this Air cap main body 1 is made using identical metal material by utility model with becket 3, and, in this utility model, metal Ring 3 is provided only with one, after becket 3 is arranged in gas passage 2, is covered the interior table of whole gas passage 2 by becket 3 Face, so can avoid the situation gap in gas passage 2 completely, and this structure can improve the steady of high pressure draught circulation Qualitative.In addition, in this utility model, gas passage 2 its diameter incremented by successively from miner diameter end a to bigger diameter end b, becket 3 Structure is adapted to the planform of gas passage 2, so can improve the assembly precision between becket 3 and air cap main body 1, Reduce the probability that gap occurs between becket 3 and air cap main body 1 further.By said structure design, this practicality is new Type not only has higher structural strength, and, the stability of gas circulation accesses and largely lifted.

Based on said structure design, this utility model is coated with ceramic layer 4 in the medial surface of becket 3, and ceramic layer 4 is compared For traditional metal material, the smooth degree on its wearability and surface is all higher.

It should be noted that：Made using identical material between air cap main body 1 and becket 3 in this utility model, And, two parts are integrally machined using thermoforming technology and form, and are formed with integral structure, so its overall construction intensity is relatively High.

Embodiment of the present utility model is given for the sake of example and description, and is not exhaustively or to incite somebody to action This utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art See.Select and description embodiment is in order to principle of the present utility model and practical application are more preferably described, and make this area Those of ordinary skill is it will be appreciated that this utility model is thus design is suitable to the various embodiments with various modifications of special-purpose.

Claims (2)

1. a kind of spray gun air cap is it is characterised in that include：

Air cap main body (1), described air cap main body is metal integral structure, and described air cap main body is pyramidal structure, Axial direction along described air cap main body offers a gas passage (2), described air cap main body include miner diameter end (a) and Bigger diameter end (b), described gas passage, from described miner diameter end to described bigger diameter end diameter incremented by successively, sets in described gas passage It is equipped with the becket (3) with described gas passage shape adaptation, described becket is provided with one, described becket is taper Ring structure, the lateral surface of described becket is offseted with described gas passage, is provided with spline knot on the end face of described bigger diameter end Structure；

Described becket is made using identical material with described air cap main body；

Described becket is arranged in described air cap main body and is integrally formed with it.

2. spray gun air cap according to claim 1 it is characterised in that

Medial surface in described becket is coated with ceramic layer (4).