CN216173352U

CN216173352U - Feed valve adjusting structure of diaphragm spraying machine

Info

Publication number: CN216173352U
Application number: CN202122085668.9U
Authority: CN
Inventors: 李淑红; 顾新军
Original assignee: Ningbo Lis Industrial Co ltd
Current assignee: Ningbo Lis Industrial Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-04-05
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a feed valve adjusting structure of a diaphragm sprayer, belonging to the technical field of diaphragm pumps and comprising: a base provided with a diaphragm chamber; the feeding valve is connected with the base and provided with a valve cavity and a valve core, the valve cavity is communicated with the diaphragm cavity, and the valve core is movably arranged in the valve cavity; the pushing assembly comprises a pushing seat and a push rod, the pushing seat is connected with the base, the pushing seat is provided with a through hole, the through hole is communicated with the valve cavity, and the push rod is movably arranged in the through hole in a penetrating mode and can push the valve core to move towards the diaphragm cavity. The utility model has the beneficial effects that: when the push rod is in abutting connection with the valve core, the push rod pushes the valve core to enable the valve core to reset, so that the feed valve does not need to be detached, the push rod is continuously pushed for two to three times, the valve core moves back and forth, the valve core can be reset and can recover free movement, the diaphragm spraying machine can recover normal work, and the diaphragm spraying machine is very convenient.

Description

Feed valve adjusting structure of diaphragm spraying machine

Technical Field

The utility model belongs to the technical field of diaphragm pumps, and relates to a feed valve adjusting structure of a diaphragm sprayer.

Background

Compared with a plunger type spraying machine, the piston of the diaphragm type spraying machine does not contact with the coating, so that the maintenance rate is reduced, the cost is reduced, and the use is wider. The diaphragm type spraying machine generates driving force by the movement of a piston to drive the diaphragm to move, and the piston is driven to move by the sliding block of the reversing mechanism.

For example, an invention patent application No. 201711393807.6 provides a high pressure membrane sprayer comprising: a motor assembly including a drive shaft having a cam structure formed thereon; the pump assembly is arranged in the pump cavity and comprises an upper pump body and a lower pump body connected with the upper pump body, a diaphragm cavity is formed between the upper pump body and the lower pump body, a diaphragm is arranged in the diaphragm cavity, a supporting sheet seat is arranged in the lower pump body, and the supporting sheet seat is funnel-shaped and is arranged in the diaphragm cavity and connected with the diaphragm; the movable block, the movable block slidable wears to establish the lower extreme of the lower pump body, just the movable block with the cam structure linkage is connected, the movable block passes through the cam structure is in thereby slide down in the pump body and make reciprocating motion is made to the diaphragm.

In the prior art, the input structure of the diaphragm spraying machine is directly connected with the diaphragm cavity, the valve core of the feeding valve moves up and down and sucks the coating, however, the valve core of the feeding valve and the valve seat are bonded together due to impurities in the coating, so that the feeding valve fails, the diaphragm spraying machine cannot work normally, and the feeding valve is required to be detached when the situation occurs, which is very troublesome.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a feed valve adjusting structure of a diaphragm sprayer.

The purpose of the utility model can be realized by the following technical scheme:

a feed valve adjustment structure for a membrane sprayer, comprising:

a base provided with a diaphragm chamber; the feeding valve is connected with the base and provided with a valve cavity and a valve core, the valve cavity is communicated with the diaphragm cavity, and the valve core is movably arranged in the valve cavity; the pushing assembly comprises a pushing seat and a push rod, the pushing seat is connected with the base, the pushing seat is provided with a through hole, the through hole is communicated with the valve cavity, and the push rod is movably arranged in the through hole in a penetrating mode and can push the valve core to move towards the diaphragm cavity.

Preferably, the push rod is provided with a spring seat, the push rod sleeve is provided with a first return spring, and two ends of the first return spring are respectively connected with the spring seat and the pushing seat in an abutting mode.

Preferably, the pushing seat is provided with a limiting part for limiting the moving stroke of the pushing rod.

Preferably, the through hole is arranged obliquely relative to the valve core so that the push rod pushes the valve core obliquely.

Preferably, a sealing ring is arranged between the through hole and the valve cavity.

Preferably, the valve core is provided with a sealing ring, the sealing ring is positioned in the diaphragm cavity, and the valve core is blocked in the valve cavity through the sealing ring.

Preferably, the valve core is sleeved with a second return spring, and two ends of the second return spring are respectively connected with the feed valve and the valve core in an abutting mode.

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

1. the push assembly is particularly arranged, when the push rod is in abutting connection with the valve core, the push rod pushes the valve core to enable the valve core to reset, so that the feed valve does not need to be detached, the push rod is continuously pushed for two to three times, the valve core can move back and forth, the valve core can reset and recover free movement, and the diaphragm spraying machine can recover normal work and is very convenient.

2. The first return spring enables the push rod to reset through the pushing spring seat, specifically, the first return spring compresses when the push rod is pushed to move towards the valve core, and the first return spring enables the push rod to reset through the pushing spring seat due to self elastic extension when the push rod is loosened.

3. The limiting portion is an annular structure located inside the pushing seat, and the limiting portion is connected with the first check ring in an abutting mode to limit the push rod to move, so that the push rod is prevented from flying out due to the elastic force of the first reset spring when the push rod is loosened suddenly.

Drawings

Fig. 1 is a schematic structural view of a feed valve adjusting structure of the present invention.

Fig. 2 is an exploded view of the feed valve adjustment structure of the present invention.

In the figure, 100, base; 110. a diaphragm chamber; 200. a feed valve; 210. a valve cavity; 220. A valve core; 221. a seal ring; 230. a second return spring; 310. a pushing seat; 311. A through hole; 312. a limiting part; 313. a seal ring; 320. a push rod; 321. a spring seat; 330. a first return spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 and 2, a feed valve adjusting structure of a diaphragm sprayer includes:

a base 100 provided with a diaphragm chamber 110.

The inlet valve 200 is connected to the base 100, the inlet valve 200 is provided with a valve cavity 210 and a valve core 220, the valve cavity 210 is communicated with the diaphragm cavity 110, the valve core 220 is movably arranged in the valve cavity 210, specifically, the valve core 220 is driven to move up and down by unidirectional movement of the coating, and the valve core 220 and the inlet valve 200 may be stuck by impurities in the coating in the past.

The pushing assembly comprises a pushing seat 310 and a push rod 320, the pushing seat 310 is connected with the base 100, the pushing seat 310 is provided with a through hole 311, the through hole 311 is communicated with the valve cavity 210, the push rod 320 movably penetrates through the through hole 311 and can push the valve core 220 to move towards the diaphragm cavity 110, the push rod 320 is further provided with a butting part, the butting part is a notch which is located on the end part of the push rod 320 and is matched with the valve core 220 in shape, and when the push rod 320 can be butted and connected with the valve core 220, the butting part just fits with the valve core 220.

In addition, the push rod 320 is further provided with a handle, the handle is convenient for a user to operate the push rod 320, when the handle is in interference connection with the push seat 310, the push seat 310 limits the movement of the push rod 320, and therefore the push rod 320 is effectively prevented from excessively jacking the valve core 220.

In the embodiment, the pushing assembly is particularly arranged, when the push rod 320 is abutted against and connected with the valve core 220, the push rod 320 pushes the valve core 220 to reset the valve core 220, so that the valve core 220 can be reset and restored to free movement by continuously pushing the push rod 320 for two to three times without detaching the feed valve 200, and the diaphragm sprayer is very convenient to restore to normal operation.

As shown in fig. 1 and 2, on the basis of the above embodiment, the push rod 320 is provided with a spring seat 321, the push rod 320 is sleeved with a first return spring 330, and two ends of the first return spring 330 are respectively connected with the spring seat 321 and the push seat 310 in an abutting manner.

In the present embodiment, the first return spring 330 returns the push rod 320 by pushing the spring seat 321, and specifically, the first return spring 330 is compressed when pushing the push rod 320 to move toward the valve body 220, and the first return spring 330 is extended by its own elastic force and returns the push rod 320 by pushing the spring seat 321 when releasing the push rod 320.

As shown in fig. 1 and 2, in addition to the above embodiment, the pushing base 310 is provided with a stopper 312 for limiting the moving stroke of the pushing rod 320.

In the present embodiment, the stopper 312 is an annular structure located inside the push base 310, and the stopper 312 is connected to the first spring base 321 in an abutting manner to limit the movement of the push rod 320, thereby preventing the push rod 320 from flying out due to the elastic force of the first return spring 330 when the push rod 320 is suddenly released.

As shown in fig. 1 and 2, in the above embodiment, the through hole 311 is inclined with respect to the valve body 220 so that the push rod 320 pushes the valve body 220 obliquely.

In the present embodiment, when the through hole 311 is disposed obliquely, the pushing assembly can adjust the valve core 220 without affecting the feeding of the feeding valve 200, the valve core 220 is vertical, and the push rod 320 is disposed in the through hole 311 obliquely relative to the valve core 220, so that the push rod 320 can apply an oblique acting force when moving obliquely, and the acting force can be decomposed into a horizontally-oriented acting force toward the inside of the valve cavity and a vertically-oriented acting force, so that the valve core 220 can be pushed downward.

As shown in fig. 1 and 2, in the above embodiment, the seal 313 is provided between the through hole 311 and the valve chamber 210, and in the present embodiment, the gap between the through hole 311 and the valve chamber 210 is sealed by the seal 313 to prevent the coating material from leaking from the through hole 311.

As shown in fig. 1 and 2, in the above embodiment, the valve body 220 is provided with the sealing ring 221, the sealing ring 221 is located in the diaphragm chamber 110, and the valve body 220 blocks the valve chamber 210 by the sealing ring 221.

In the present embodiment, the sealing ring 221 is located at an end of the mandrel, the base 100 is actually provided with the sealing ring 313, the mandrel can drive the sealing ring 221 to move towards the sealing ring 313, and the valve cavity 210 is blocked by the valve core 220 when the sealing ring 221 is in abutting connection with the sealing ring 313.

As shown in fig. 1 and 2, on the basis of the above embodiment, the valve core 220 is sleeved with a second return spring 230, and two ends of the second return spring 230 are respectively connected to the inlet valve 200 and the valve core 220 in an abutting manner.

In this embodiment, the valve element 220 is further provided with a second spring seat, and two ends of the second return spring 230 are respectively connected to the feed valve 200 and the second spring seat in an abutting manner, specifically, when the push rod 320 drives the valve element 220 to move toward the diaphragm chamber 110, the second return spring 230 is compressed, and when the push rod 320 is released, the second return spring 230 extends due to its own elastic force and returns the valve element 220 by pushing the second spring seat.

Preferably, the valve core 220 is further provided with an adjusting nut, the adjusting nut is in abutting connection with the second spring seat, the valve core 220 is further provided with a threaded portion, the adjusting nut is connected with the threaded portion, and the adjusting nut is screwed to change the longitudinal position of the second spring seat, so that the tightness of the second return spring 230 is adjusted, and therefore the feed valve 200 can be adjusted.

From the general theory of operation, it is connected with valve core 220 to contradict through handle promotion push rod 320, and after push rod 320 is connected with valve core 220 conflict, continue to promote push rod 320 and can make and push valve core 220, as long as promote push rod 320 two to three times in succession, make valve core 220 round trip movement, can realize that valve core 220 resets and resumes free activity, make the diaphragm flush coater resume normal work, it is very convenient.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A structure is adjusted to diaphragm flush coater's feed valve, its characterized in that includes:

a base provided with a diaphragm chamber;

the feeding valve is connected with the base and provided with a valve cavity and a valve core, the valve cavity is communicated with the diaphragm cavity, and the valve core is movably arranged in the valve cavity;

the pushing assembly comprises a pushing seat and a push rod, the pushing seat is connected with the base, the pushing seat is provided with a through hole, the through hole is communicated with the valve cavity, and the push rod is movably arranged in the through hole in a penetrating mode and can push the valve core to move towards the diaphragm cavity.

2. A feed valve adjusting structure of a diaphragm sprayer as claimed in claim 1, wherein: the push rod is provided with the spring holder, the push rod cover is equipped with first reset spring, first reset spring's both ends respectively with the spring holder and the conflict of propelling movement seat is connected.

3. A feed valve adjusting structure of a diaphragm sprayer as claimed in claim 2, wherein: the pushing seat is provided with a limiting part used for limiting the moving stroke of the pushing rod.

4. A feed valve adjusting structure of a diaphragm sprayer as claimed in claim 1, wherein: the through hole is obliquely arranged relative to the valve core, so that the push rod obliquely pushes the valve core.

5. A feed valve adjusting structure of a diaphragm sprayer as claimed in claim 1 or 4, wherein: and a sealing ring is arranged between the through hole and the valve cavity.

6. A feed valve adjusting structure of a diaphragm sprayer as claimed in claim 1, wherein: the valve core is provided with a sealing ring, the sealing ring is positioned in the diaphragm cavity, and the valve core is blocked by the sealing ring.

7. A feed valve adjusting structure of a diaphragm sprayer as claimed in claim 6, wherein: the valve core is sleeved with a second return spring, and two ends of the second return spring are respectively connected with the feed valve and the valve core in an abutting mode.