CN221348170U - Valve suction valve core structure for high-pressure airless spraying machine - Google Patents

Abstract

The utility model discloses a valve-sucking valve core structure for a high-pressure airless spraying machine, which comprises a main valve body, wherein one side of the main valve body is provided with the valve-sucking valve body, the middle of the main valve body is provided with a feeding hole, the inner diameter surface of the upper half part of the feeding hole is provided with a first internal thread, a feeding cavity with an upper layer and a lower layer is arranged above the first internal thread, the lower layer of the feeding cavity is a circular feeding part, the upper layer of the feeding cavity is a plurality of buffer grooves which are arranged around the outer edge of the feeding part at equal angles, and the buffer grooves are communicated with the feeding part; a cover plate matched with the buffer groove is arranged in the feeding cavity, the thickness of the cover plate is smaller than the depth of the buffer groove, and an elastic part for pulling the cover plate is arranged between the cover plate and the feeding part so as to adjust the capacity of the feeding cavity; the utility model adopts the extension spring as the elastic component, can provide stable pressure, and enables the capacity of the feeding cavity to be adjusted, thereby enlarging the cavity, enabling the fluid feed liquid to flow more smoothly and reducing the abrasion of internal parts.

Description

Valve suction valve core structure for high-pressure airless spraying machine

Technical Field

The utility model relates to the technical field of high-pressure airless spray coating machines, in particular to a valve core structure of a suction valve for a high-pressure airless spray coating machine.

Background

The high-pressure airless sprayer is advanced coating equipment and is widely applied to the industrial field. The high-pressure airless sprayer adopts a high-pressure pump to push the paint to a spray gun, and the spraying material is finely divided and accelerated by gas, so that the high-efficiency and uniform coating process is realized, and the working principle of the high-pressure airless sprayer is that the paint is sent to the spray gun by using the pressure generated by the high-pressure pump. During spraying, the coating is finely divided into very small particles through a nozzle, and a high-velocity stream is formed due to the high-pressure spraying. The high-speed liquid flow can be uniformly sprayed on the surface of a coated object to form a uniform and smooth coating.

When the pump head of the high-pressure airless sprayer works, the pump head needs to work by feeding and discharging through the valve body, the valve body adopted by the existing pump head of the high-pressure airless sprayer is of a generally integrated structure, when spraying is carried out, the valve body of the main valve body is possibly damaged due to overlarge internal pressure of the sprayer, and once the valve body of the valve body is damaged, the whole valve body structure needs to be replaced, so that a large amount of cost is lost.

Disclosure of utility model

The utility model aims to solve the problem that the valve body of the valve is damaged due to the fact that the internal pressure of the high-pressure airless sprayer is too high when spraying is carried out, and the whole valve body structure needs to be replaced, so that the valve core structure of the suction valve for the high-pressure airless sprayer is provided.

The utility model realizes the above purpose through the following technical scheme: the valve core structure of the suction valve for the high-pressure airless spraying machine comprises a main valve body, wherein one side of the main valve body is provided with the valve body of the suction valve, the middle of the main valve body is provided with a feed inlet, the inner diameter surface of the upper half part of the feed inlet is provided with a first internal thread, a feed cavity with an upper layer and a lower layer is arranged above the first internal thread, the lower layer of the feed cavity is a circular feed part, the upper layer of the feed cavity is provided with a plurality of buffer grooves which are arranged around the outer edge of the feed part at equal angles, and the buffer grooves are communicated with the feed part; the feeding cavity is internally provided with a cover plate matched with the buffer groove, the thickness of the cover plate is smaller than the depth of the buffer groove, and an elastic component for pulling the cover plate is arranged between the cover plate and the feeding part so as to adjust the capacity of the feeding cavity.

Further, a plurality of cylindrical grooves are formed in the feeding portion, one end of the elastic component is fixedly installed in the grooves, and the other end of the elastic component is fixedly connected with the cover plate.

Further, the elastic member is an extension spring.

Further, a discharging cavity is formed in the valve body of the suction valve, a discharging pipe is arranged on one side of the valve body of the discharge valve, the discharging pipe is communicated with the discharging cavity, and external threads are arranged on the outer surface of the discharging pipe.

Further, a first discharging channel is formed in the first internal thread, penetrates through the main valve body and is communicated with the discharging cavity.

Further, the top of the valve body is provided with a screw seal due to sealing.

Compared with the prior art, the utility model has the beneficial effects that:

1. By using a cover plate and an elastic member, an adjustment of the size of the feed chamber volume can be achieved. The traction relation between the cover plate and the feeding part ensures the tight combination of the cover plate and the feeding part, and when the feed liquid is flushed into the feeding cavity at high speed, the combination of the elastic part and the cover plate enables the feed liquid to be well buffered;

2. the extension spring is adopted as an elastic component, so that stable pressure can be provided, and the capacity of the feeding cavity is adjusted, so that the cavity is enlarged, the fluid feed liquid flows more smoothly, and the abrasion of internal parts is reduced; one end of the spring is fixedly arranged in the groove of the feeding part, the other end of the spring is connected with the cover plate, and the capacity of the feeding cavity can be flexibly controlled by adjusting the tension of the spring.

3. The upper layer of the feeding cavity is provided with a plurality of buffer grooves around the outer edge of the feeding part, and through the design of the buffer grooves, the paint can flow into the feeding cavity more uniformly.

4. A discharging cavity is arranged in the valve body of the suction valve, a discharging pipe is connected with the discharging cavity, and an external thread is arranged on the outer surface of the discharging pipe. This design allows for easy connection of the tapping pipe to a spray gun or other spray tool for smooth supply of paint.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of A-A of FIG. 1;

Fig. 3 is an exploded view of the present utility model.

In the figure: the device comprises a 1-main valve body, a 2-suction valve body, a 3-feed inlet, a 4-first internal thread, a 5-feed cavity, a 6-cover plate, a 7-elastic part, an 8-discharge pipe, a 9-first discharge channel and a 10-spiral sealing piece;

21-discharge cavity, 51-feeding portion, 52-buffer tank and 511-groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The valve core structure for the high-pressure airless spraying machine comprises a main valve body 1, wherein one side of the main valve body 1 is provided with a valve body 2, the middle of the main valve body 1 is provided with a feed inlet 3, the inner diameter surface of the upper half part of the feed inlet 3 is provided with a first internal thread 4, a feed cavity 5 with an upper layer and a lower layer is arranged above the first internal thread 4, the lower layer of the feed cavity 5 is a circular feed part 51, the upper layer of the feed cavity 5 is a plurality of buffer grooves 52 which are arranged around the outer edge of the feed part 51 at equal angles, and the buffer grooves 52 are communicated with the feed part 51; a cover plate 6 matched with the buffer groove 52 is arranged in the feeding cavity 5, the thickness of the cover plate 6 is smaller than the depth of the buffer groove 52, and an elastic part 7 for pulling the cover plate 6 is arranged between the cover plate 6 and the feeding part 51 so as to adjust the capacity of the feeding cavity 5; wherein, the feeding part 51 is provided with a plurality of cylindrical grooves 511, one end of the elastic component 7 is fixedly arranged in the grooves 511, the other end of the elastic component 7 is fixedly connected with the cover plate 6, and the elastic component 7 is an extension spring; when the liquid suction valve is used, after the liquid suction valve is installed and fixed in the feed inlet 3 through the first internal thread 4, feed liquid enters from the feed inlet 3 through the liquid suction valve, and high-speed feed liquid enters into the feed cavity 5 from the feed inlet 3, then enters the feed part 51 to impact the cover plate 6, the cover plate 6 plays a role in buffering through traction of the elastic component, in addition, after the cover plate 6 is impacted by the feed liquid, the capacity of the feed cavity 5 is increased, and the feed liquid enters the buffer groove 52, so that impact pressure of the high-speed feed liquid on the valve body 2 of the discharge valve is reduced;

Referring to fig. 2-3, a discharge cavity 21 is formed in the valve body 2 of the suction valve, a discharge pipe 8 is arranged on one side of the valve body 2 of the suction valve, the discharge pipe 8 is communicated with the discharge cavity 21, external threads are arranged on the outer surface of the discharge pipe 8, a first discharge channel 9 is formed at the first internal thread 4, the first discharge channel 9 penetrates through the main valve body 1 and is communicated with the discharge cavity 21, and a sealing screw element 10 is arranged at the top of the valve body 2 of the suction valve due to sealing; when the high-speed feed liquid feeding device is used, the high-speed feed liquid is well buffered due to the cooperation of the cover plate 6, the elastic component 7 and the buffer groove 52 when entering the feed cavity 5, so that the feed liquid enters the discharge cavity 21 from the first discharge channel 9 and is led out through the discharge pipe 8.

Working principle: after the liquid suction valve is installed and fixed in the feed inlet 3 through the first internal thread 4, feed liquid enters from the feed inlet 3 through the liquid suction valve, high-speed feed liquid enters into the feed cavity 5 from the feed inlet 3, then enters into the feed part 51 and impacts the cover plate 6, the cover plate 6 plays a role in buffering the feed liquid through the traction of the elastic component 7, in addition, after the feed liquid impacts the cover plate 6, the capacity of the feed cavity 5 is increased, the feed liquid enters into the buffer groove 52, then the feed liquid with pressure buffered enters into the discharge cavity 21 through the first discharge channel 9, and is led out through the discharge pipe 8, and finally an external spray gun or other spraying tools are connected with the feed liquid through the internal thread on the outer surface of the discharge pipe 8, so that spraying operation is performed.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a inhale valve case structure for high pressure airless spraying machine, includes main valve body (1), main valve body (1) one side is equipped with inhales valve body (2), its characterized in that: the main valve comprises a main valve body (1), wherein a feed inlet (3) is arranged in the middle of the main valve body (1), a first internal thread (4) is arranged on the inner diameter surface of the upper half part of the feed inlet (3), a feed cavity (5) with an upper layer and a lower layer is arranged above the first internal thread (4), the lower layer of the feed cavity (5) is a circular feed part (51), the upper layer of the feed cavity (5) is a plurality of buffer grooves (52) which are arranged around the outer edge of the feed part (51) at equal angles, and the buffer grooves (52) are communicated with the feed part (51); set up in feed chamber (5) with buffer tank (52) assorted lid plywood (6), the thickness of lid plywood (6) is less than the degree of depth of buffer tank (52), lid plywood (6) with set up between feed portion (51) and pull elastic component (7) of lid plywood (6), in order to adjust the capacity size in feed chamber (5).

2. The suction valve core structure for a high-pressure airless sprayer according to claim 1, characterized in that: a plurality of cylindrical grooves (511) are formed in the feeding portion (51), one end of the elastic component (7) is fixedly installed in the grooves (511), and the other end of the elastic component (7) is fixedly connected with the cover plate (6).

3. The suction valve core structure for a high-pressure airless sprayer according to claim 2, characterized in that: the elastic component (7) is an extension spring.

4. The suction valve core structure for a high-pressure airless sprayer according to claim 2, characterized in that: offer ejection of compact chamber (21) in inhaling valve body (2), one side of inhaling valve body (2) is equipped with discharging pipe (8), discharging pipe (8) with ejection of compact chamber (21) intercommunication, discharging pipe (8) surface is equipped with the external screw thread.

5. The suction valve core structure for a high-pressure airless sprayer according to claim 4, characterized in that: a first discharging channel (9) is formed in the first internal thread (4), and the first discharging channel (9) penetrates through the main valve body (1) and is communicated with the discharging cavity (21).

6. The suction valve core structure for a high-pressure airless sprayer according to claim 5, characterized in that: the top of the suction valve body (2) is provided with a spiral sealing piece (10) for sealing.