CN202768384U

CN202768384U - Plunger

Info

Publication number: CN202768384U
Application number: CN 201220391980
Authority: CN
Inventors: 吴建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-09
Filing date: 2012-08-09
Publication date: 2013-03-06
Anticipated expiration: 2022-08-09

Abstract

The utility model discloses a plunger which is installed in a high pressure cleaning machine and used for producing of high pressure water flow. The plunger comprises a plunger main body and a plunger inner sleeve. According to the plunger, the plunger inner sleeve is connected to one end of the plunger main body in an inserted mode, and an outer edge bus line of the plunger inner sleeve is in parallel with an outer edge bus line of the plunger main body. According to the structure, after the plunger inner sleeve is inserted into the plunger main body, the end portion of the plunger inner sleeve has a certain extending amount on the plunger main body. Besides, a structural design similar to a bottle cap in the prior art is adopted, and the edge of the plunger inner sleeve abuts against the plunger main body. The outer edge bus line of the plunger inner sleeve is in parallel with the outer edge bus line of the plunger main body so that the smooth operation of the plunger main body can be ensured, and therefore the plunger inner sleeve and the plunger main body are connected in a seamless and smooth mode. According to the plunger, due to the improvement of the inner structure of the plunger main body and the improvement of the connecting way between the plunger main body and the plunger inner sleeve, the manufacturing cost of the plunger is greatly reduced, and the connection of the plunger main body and the plunger inner sleeve is effective.

Description

A kind of plunger

Technical field

The utility model relates to the jetting machine equipment technical field, more particularly, and particularly a kind of plunger.

Background technique

Jetting machine is to make high-pressure plunger pump produce the machine that high pressure water washes body surface by power plant.It can be peeled off dirt, washes away, and reaches the purpose on cleaning of objects surface.Because be to use water jets under high pressure cleaning dirt, so high-pressure wash also is one of cleaning mode of universally acknowledged most scientific, economy, environmental protection.

One of of paramount importance parts are exactly plunger in the jetting machine, and plunger is the critical piece that produces high-pressure water flow.In the prior art, the production of plunger is to adopt the embryo spare of solid integral body to process, and its quality of processing is larger, has caused comparatively difficulty of plunger processing, causes work efficiency lower.And, adopting solid construction, manufacture cost also can be corresponding higher.

And, the plunger that provides in the prior art comprises piston body and the plunger inner sleeve that is arranged at the piston body end, and the plunger inner sleeve is inserted in the piston body, in order to guarantee the neat of end, piston body around the edge of plunger inner sleeve outwardly and plunger inner sleeve to flat.This structural design has increased the volume structure of piston body undoubtedly, improves its manufacture cost.

In sum, how to reduce the manufacture cost of plunger, become those skilled in the art's problem demanding prompt solution.

The model utility content

The technical problems to be solved in the utility model is for providing a kind of plunger, and this plunger can reduce the manufacture cost of plunger by its structural design.

For solving the problems of the technologies described above, the utility model provides a kind of plunger, be installed in the jetting machine, for generation of high-pressure water flow, comprise piston body and plunger inner sleeve, described plunger inner sleeve is plugged in an end of described piston body, and the outer rim bus of described plunger inner sleeve is parallel with the outer rim bus of described piston body.

Preferably, described piston body is hollow-core construction.

Preferably, the outer rim of described plunger inner sleeve has level and smooth chamfering.

Preferably, described piston body is the 2Cr13 piston body, and described plunger inner sleeve is the PA66 cover of plunger.

The utility model provides a kind of plunger, is installed in the jetting machine, for generation of high-pressure water flow, comprises piston body and plunger inner sleeve.In the utility model, the plunger inner sleeve is plugged in an end of piston body, and the outer rim bus of plunger inner sleeve is parallel with the outer rim bus of piston body.

In the said structure, be enclosed within the plunger be inserted in the piston body after, its end has certain overhang on piston body, and adopts the structural design be similar to bottle cap in the prior art, the edge of plunger inner sleeve props up piston body.In order to guarantee that piston body can carry out work swimmingly, the outer rim bus of plunger inner sleeve is parallel with the outer rim bus of piston body, so seamless, smooth connection between plunger inner sleeve and the piston body.

In the utility model and since by the plunger inner sleeve realize with piston body between the centering that aligns, the plunger inner sleeve adopts plastics to make usually in the prior art, therefore, can reduce to a certain extent the manufacture cost of plunger.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to the accompanying drawing that provides other accompanying drawing.

Fig. 1 is the structural representation of plunger among a kind of embodiment of the utility model;

The corresponding relation of component names and reference character is among Fig. 1:

Piston body 1; Plunger inner sleeve 2.

Embodiment

Core of the present utility model is for providing a kind of plunger, and this plunger can reduce the manufacture cost of plunger by its structural design.

In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Please refer to Fig. 1, Fig. 1 is the structural representation of plunger among a kind of embodiment of the utility model.

The utility model provides a kind of plunger, is installed in the jetting machine, for generation of high-pressure water flow, comprises piston body 1 and plunger inner sleeve 2.In the utility model, plunger inner sleeve 2 is plugged in an end of piston body 1, and the outer rim bus of plunger inner sleeve 2 is parallel with the outer rim bus of piston body 1.

Said structure comparatively figuratively speaking is exactly: plunger inner sleeve 2 in being inserted into piston body 1 after, its end has certain overhang on piston body 1, and adopt the structural design that is similar to bottle cap in the prior art, the edge of plunger inner sleeve 2 props up piston body 1.In order to guarantee that piston body 1 can carry out work swimmingly, the outer rim bus of plunger inner sleeve 2 is parallel with the outer rim bus of piston body 1, so seamless, smooth connection between plunger inner sleeve 2 and the piston body 1.

In the utility model and since by plunger inner sleeve 2 realize with piston body 1 between the centering that aligns, in the prior art plunger inner sleeve 2 usually the employing plastics make, therefore, can reduce to a certain extent the manufacture cost of plunger.

Particularly, in order further to reduce the manufacture cost of plunger, in the present embodiment, piston body 1 has adopted hollow-core construction.As a kind of general knowledge as can be known, for measure-alike parts, its hollow-core construction is for solid construction, and quality can descend on certain degree to some extent.So, in the utility model, the plunger quality lightens, and is convenient to mechanical adding and holds when machining, thereby reduce its difficulty of processing, improves work efficiency.And owing to adopting hollow-core construction, it is made required material and reduces the manufacture cost reduction.In sum, the utility model can solve comparatively difficulty of plunger machining operation, the problem that manufacture cost is higher owing to having adopted hollow-core construction.

Particularly, the outer rim of plunger inner sleeve 2 has level and smooth chamfering, and appearance looks elegant so not only can also be avoided adopting right-angle structure and the scuffing problem between parts comparatively sharply and is easily caused in the end that causes.

Particularly, piston body 1 is the 2Cr13 piston body, and plunger inner sleeve 2 is the PA66 cover of plunger.

The 2Cr13 Martensitic Stain Less Steel, hardness is high under as-quenched, and corrosion resistance is good.

PA66 (polyamide 66 or nylon 66) is widely used in automotive industry, Instrument shell and other product that need to have impact resistance and high strength to require.

Claims

1. a plunger is installed in the jetting machine, for generation of high-pressure water flow, comprises piston body (1) and plunger inner sleeve (2), it is characterized in that,

Described plunger inner sleeve (2) is plugged in an end of described piston body (1), and the outer rim bus of described plunger inner sleeve (2) is parallel with the outer rim bus of described piston body (1).

2. plunger according to claim 1 is characterized in that, described piston body (1) is hollow-core construction.

3. plunger according to claim 1 is characterized in that, the outer rim of described plunger inner sleeve (2) has level and smooth chamfering.

4. according to claim 1 to 3 each described plungers, it is characterized in that, described piston body (1) is the 2Cr13 piston body, and described plunger inner sleeve (2) is the PA66 cover of plunger.