WO2023092952A1

WO2023092952A1 - Waterproof pressing pump capable of preventing liquid from entering via air supplementing hole

Info

Publication number: WO2023092952A1
Application number: PCT/CN2022/091017
Authority: WO
Inventors: 莫恒进; 林添大
Original assignee: 中山市联昌喷雾泵有限公司
Priority date: 2021-11-27
Filing date: 2022-05-05
Publication date: 2023-06-01
Also published as: CN216581924U

Abstract

A waterproof pressing pump capable of preventing a liquid from entering via an air supplementing hole, comprising screw threads, a body, a lock cover, a pressing head, a main column, an auxiliary column, a piston, a spring, and a glass ball, wherein an annular stop table is arranged on the body at the lower portion of the air supplementing hole; a liquid-proof sealing piece is further comprised; the spring is arranged on the bottom plate of a locking cavity in a guide sealing sleeve; the upper end of the spring extends into a lower spring cavity; the lower end of a cylindrical sealing ring is matched with the annular stop table on the body; in a locking state, the cylindrical sealing ring covers the air supplementing hole, the lower end of the cylindrical sealing ring is matched with the annular stop table, and an annular driving table is attached to an annular seat plate; and in a natural state, the bottom plate of the locking cavity is attached to the annular seat plate, the upper end of the piston is tightly matched with the lower end of the cylindrical sealing ring, and the piston covers the air supplementing hole. According to the arrangement of the liquid-proof sealing piece, in the locking state, the liquid-proof sealing piece covers the air supplementing hole, and in the natural state after unlocking, the piston covers the air supplementing hole, and thus, air supplementing is smooth, and a liquid is prevented from polluting the spring.

Description

A press pump that is waterproof, prevents and prevents air hole from entering liquid

technical field

The present invention relates to push pumps.

Background technique

In the current prior art, a press pump includes a thread, a body, a lock cover, a press head, a main column, an auxiliary column, a piston, a spring, and a glass ball. The body includes an interface, a flange, an air supply hole and a single To the valve seat, the lock cover includes a locking cavity, a guide hole and an annular seat on the bottom plate of the locking cavity, and the press head includes a liquid inlet pipe and a liquid outlet channel; the interface passes through the through hole of the screw top plate, and the lock cover is inserted into the body Inside, the interface is inserted into the annular connection groove of the annular seat; the auxiliary column is inserted into the lower end of the main column, and the piston cooperates with the lower end of the auxiliary column and the main column. There is a problem: when the bottle body is tilted, the liquid in the bottle enters the body.

Contents of the invention

The object of the present invention is to provide a press pump which is waterproof and prevents liquid from entering the air supply hole, which has the feature of preventing liquid from entering the main body through the air supply hole.

The present invention is achieved in the following way: a press pump for waterproofing, preventing air filling holes, including screw teeth, a body, a lock cover, a press head, a main column, an auxiliary column, a piston, a spring and a glass ball. Interface, flange, air supply hole and one-way valve seat, the lock cover includes a locking cavity, a guide hole and an annular seat on the bottom plate of the locking cavity, and the press head includes a liquid inlet pipe and a liquid outlet channel; the interface passes through the thread The through hole of the top plate, the lock cover is inserted into the body, and the interface is inserted into the annular connection groove of the annular seat; the lower end of the auxiliary column is inserted into the main column, and the piston cooperates with the lower end of the auxiliary column and the main column; the special features are: The body at the lower part of the air supply hole is provided with an annular stopper;

The lock cover also includes a guide sealing sleeve arranged on the bottom plate of the lock cavity and surrounding the guide hole;

Several axial protrusions are provided on the outer peripheral surface of the liquid inlet pipe of the pressing head;

The main column also includes a sleeve, a dividing plate connecting the sleeve and the main column, an air guide hole on the dividing plate and an annular driving platform arranged on the main column, and the dividing plate divides the sleeve into an upper connection chamber and an upper connection cavity. lower spring chamber;

It also includes a liquid-proof seal, the liquid-proof seal includes an annular seat plate and a cylindrical sealing ring, the annular seat plate and the cylindrical sealing ring, and the outer peripheral surface of the cylindrical sealing ring is hyperbolic;

The spring is set on the bottom plate of the locking cavity in the guide sealing sleeve, the main column passes through the guiding hole of the locking cavity and the annular seat plate of the liquid-proof seal, the annular driving table is matched with the annular seat, and the main column is matched with the guiding hole. , the upper end of the spring extends into the lower spring cavity, the lower end and the bottom plate in the guide seal sleeve, the guide seal sleeve extends into the sleeve and is slidably matched and sealed with the sleeve; the lower end of the cylindrical seal ring and the annular stopper on the body Fitting; the liquid inlet pipe of the press head is inserted into the upper connecting cavity, and the axial protrusion and the inner surface of the sleeve at the upper connecting cavity form an air guide groove; in the locked state, the cylindrical sealing ring covers the air supply hole, and the cylindrical sealing ring The lower end cooperates with the annular stopper, and the annular driving platform is attached to the annular seat plate; in the natural state, the bottom plate of the locking chamber is attached to the annular seat plate, and the upper end of the piston is closely matched with the lower end of the cylindrical sealing ring, and the piston is covered and compensated. stomata.

The waterproof and air-replenishing press pump described above is special in that: the lower end of the cylindrical sealing ring of the liquid-proof seal is provided with an external interface, and in the natural state, the external interface is inserted into the upper end of the piston Inside.

The waterproof and air-replenishing press pump described above is special in that: the upper end of the annular seat of the lock cover is provided with an annular insertion groove;

Also includes an outer lock cover, the outer lock cover includes a body and a frustoconical cover,

The body part is inserted into the annular insertion groove, and the frustum-shaped cover part slides with the main column.

The waterproof and air-replenishing press pump described above is special in that: the upper end of the outer peripheral surface of the guide seal sleeve is provided with an annular protrusion, and the annular protrusion is connected to the outer ring of the lower spring chamber. The inner surfaces of the wall panels are a sliding fit and seal.

The present invention is a waterproof and anti-gas hole press pump, the liquid-proof seal is set, in the locked state, the liquid-proof seal covers the gas hole, and in the natural state after unlocking, the piston covers the gas hole, and the gas is unimpeded , to prevent liquid contamination of the spring.

Description of drawings

Fig. 1 is a sectional view of the locked state of the present invention.

Fig. 2 is a cross-sectional view of the present invention in a natural state after unlocking.

Fig. 3 is one of the three-dimensional exploded views of the present invention.

Fig. 4 is the second perspective exploded view of the present invention.

Fig. 5 is a perspective view of the press head of the present invention.

Fig. 6 is a three-dimensional sectional view of the locking cover of the present invention.

Fig. 7 is a perspective sectional view of the body of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a water-proof and air-replenishing press pump includes a screw thread 1, a body 2, a lock cover 3, a press head 4, a main column 5, an auxiliary column 6, a piston 7, a spring 8 and a glass ball 9. The body 2 includes an interface 21, a flange 22, an air supply hole 23 and a one-way valve seat 24 on the upper end, and the lock cover 3 includes a locking cavity 31, a guide hole 32 and an annular seat 33 on the bottom plate of the locking cavity , the press head 4 includes a liquid inlet pipe 41 and a liquid outlet channel 42; the interface 21 passes through the through hole of the screw top plate, the locking cavity 31 of the lock cover 3 is inserted into the body 2, and the interface 21 is inserted into the annular connection groove 331 of the annular seat 33 Inside; the lower end of the auxiliary column 6 and the main column 5 is inserted, and the piston 7 cooperates with the lower end of the auxiliary column 6 and the main column 5; the glass ball 9 is located on the one-way valve seat 24;

The body 2 at the lower part of the air supply hole 23 is provided with an annular stopper 25;

The lock cover 3 also includes a guide sealing sleeve 34 arranged on the bottom plate of the lock chamber 31 and surrounding the guide hole 32;

Several axial projections 411 are provided on the outer circumferential surface of the liquid inlet pipe 41 of the press head 4;

The main column 5 also includes a sleeve 51, a dividing plate 52 connecting the sleeve 51 and the main column, an air guide hole 521 on the dividing plate and an annular driving platform 53 arranged on the main column. The dividing plate 52 will cover the The barrel is divided into an upper connection cavity 541 and a lower spring cavity 542;

Also includes a liquid-proof seal 10, the liquid-proof seal 10 includes an annular seat plate 101 and a cylindrical sealing ring 102, the annular seat plate 101 is connected with the cylindrical sealing ring 102, and the outer peripheral surface of the cylindrical sealing ring 102 is hyperbolic ;

The spring 8 is arranged on the bottom plate of the locking chamber 31 in the guide sealing sleeve 34, the main column 5 passes through the guide hole 32 of the locking chamber and the annular seat plate 101 of the liquid-proof seal 10, the annular driving table 53 and the annular seat plate 101 cooperation, the main column 5 and the guide hole 321 clearance fit, the upper end of the spring 8 extends into the lower spring cavity 542, the lower end and the bottom plate of the locking cavity 31 in the guide seal sleeve 34, the guide seal sleeve 34 extends into the sleeve 51 and Slidingly fit and seal with the sleeve 51; the lower end of the cylindrical sealing ring 102 cooperates with the annular stopper 25 on the body 2; the liquid inlet pipe 41 of the press head 4 is inserted into the upper connection cavity 541, and the axial protrusion 411 is in contact with the upper The inner surface of the sleeve 51 at the connection cavity 541 constitutes the air guide groove 12; in the locked state, the cylindrical sealing ring 102 covers the air supply hole 23, the lower end of the cylindrical sealing ring 102 cooperates with the annular stopper 25, and the annular driving platform 53 and the The annular seat plate 101 fits together; in a natural state, the bottom plate of the locking cavity 31 fits with the annular seat plate 101, the upper end of the piston 7 is closely matched with the lower end of the cylindrical sealing ring 102, and the piston 7 covers the air supply hole 23;

When supplementing air, the dotted line and the arrow path shown in Figure 2, the outside air passes through the air guide groove 12 formed by the liquid inlet pipe 41 and the sleeve 51, the air guide hole 521 on the partition, the lower spring chamber 542, and the guide seal sleeve 34 , The guide hole 32 enters the body 2; as shown in Figure 1, the liquid inlet pipe and the sleeve 51 are located in the press head 4, effectively preventing the entry of external water and waterproofing;

When external water enters between the locking cavity 31 and the guide sealing sleeve 34, due to the sealing of the sleeve 51 of the main column 5 and the guide sealing sleeve 34, it can prevent external water from entering the lower spring chamber 542 and corroding the spring 8.

The lower end of the sleeve 51 is provided with a locking external thread 511 , and the inner wall of the locking chamber 31 is provided with an internal thread 311 , and in the locked state, the locking external thread and the internal thread are screwed together.

As a further improvement of the present invention: the lower end of the cylindrical sealing ring 102 of the liquid-proof seal 10 is provided with an external interface 1021 , and in the natural state, the external interface 1021 is inserted into the upper end of the piston 7 . In the locked state, the lower end of the cylindrical sealing ring 102 on the upper part of the external interface 1021 cooperates with the annular stopper 25;

The upper end of the annular seat 33 of the lock cover 3 is provided with an annular insertion groove 332;

Also includes an outer lock cover 11, the outer lock cover 11 includes a body 11 and a truncated cone cover 12,

The body portion 11 is inserted into the annular insertion groove 332 , and the frustum-shaped cover portion 12 is slidingly fitted with the main column 5 .

The upper end of the outer peripheral surface of the guide sealing sleeve 34 is provided with an annular protrusion 341 , and the annular protrusion 341 is slidingly fitted and sealed with the inner surface of the outer ring wall plate of the lower spring chamber 542 .

In the natural state after unlocking as shown in Figure 2, press the button 4, the button 4, the main column 5, the auxiliary column 6 and the piston 7 move downward together, the piston 7 moves downward, and the body 4 on the upper part of the piston 7 generates Negative pressure, the air outside the bottle enters the body 2 through the air guide groove 12 formed by the liquid inlet pipe 41 and the sleeve 51, the air guide hole 521 on the partition, the lower spring chamber 542, the guide seal sleeve 34, and the guide hole 32; After the piston 7 moves a certain distance, during the downward movement of the main column 5, the annular drive table 53 drives the liquid-proof seal 10 to move downward until the liquid-proof seal 10 cooperates with the annular stopper 25 to stop the liquid-proof seal. Part 10 covers the air supply hole 23, that is, the cylindrical sealing ring 102 on the upper part of the external interface 1021 cooperates with the annular stopper 25 to stop;

Press head 4 loses pressure, and under the action of spring 8, main column 5, auxiliary column 6 and piston 7 move upward; then piston 7 drives liquid-proof seal 10 to move upward to the state shown in FIG. 2 .

When the water in the space between the locking chamber 31 and the guide sealing sleeve 34 reaches a certain water level, in the state shown in Figure 2, when the main column 5 moves downward, the water passes through the sleeve 51 of the main column 5 and the truncated cone cover. The gap between the parts 12 is discharged, and a gap appears between the sleeve 51 and the truncated conical cover part 12 under pressure.

What has been described above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, some improvements and modifications can be made without departing from the principle of the present invention, which are also regarded as the protection scope of the present invention.

Claims

A water-proof and anti-gas hole pump, including screw teeth, body, lock cover, press head, main column, auxiliary column, piston, spring and glass ball, the body includes an interface on the upper end, a flange, and an air hole and one-way valve seat, the lock cover includes a locking cavity, a guide hole and an annular seat on the bottom plate of the locking cavity, the press head includes a liquid inlet pipe and a liquid outlet channel; the interface passes through the through hole of the screw top plate, and the lock cover Inserted into the body, the interface is inserted into the annular connecting groove of the annular seat; the lower end of the auxiliary column is inserted into the main column, and the piston cooperates with the lower end of the auxiliary column and the main column; stop platform;

The lock cover also includes a guide sealing sleeve arranged on the bottom plate of the lock cavity and surrounding the guide hole;

Several axial protrusions are provided on the outer peripheral surface of the liquid inlet pipe of the pressing head;

The main column also includes a sleeve, a dividing plate connecting the sleeve and the main column, an air guide hole on the dividing plate and an annular driving platform arranged on the main column, and the dividing plate divides the sleeve into an upper connection chamber and an upper connection cavity. lower spring chamber;

It also includes a liquid-proof seal, the liquid-proof seal includes an annular seat plate and a cylindrical sealing ring, the annular seat plate and the cylindrical sealing ring, and the outer peripheral surface of the cylindrical sealing ring is hyperbolic;

The spring is set on the bottom plate of the locking cavity in the guide sealing sleeve, the main column passes through the guiding hole of the locking cavity and the annular seat plate of the liquid-proof seal, the annular driving table is matched with the annular seat, and the main column is matched with the guiding hole. , the upper end of the spring extends into the lower spring cavity, the lower end and the bottom plate in the guide seal sleeve, the guide seal sleeve extends into the sleeve and is slidably matched and sealed with the sleeve; the lower end of the cylindrical seal ring and the annular stopper on the body Fitting; the liquid inlet pipe of the press head is inserted into the upper connecting cavity, and the axial protrusion and the inner surface of the sleeve at the upper connecting cavity form an air guide groove; in the locked state, the cylindrical sealing ring covers the air supply hole, and the cylindrical sealing ring The lower end is matched with the annular stopper, and the annular drive table is attached to the annular seat plate; in the natural state, the bottom plate of the locking chamber is attached to the annular seat plate, and the upper end of the piston is closely matched with the lower end of the cylindrical sealing ring, and the piston is covered and supplemented. stomata.
According to claim 1, a water-proof and air-replenishing press pump, characterized in that: the lower end of the cylindrical sealing ring of the liquid-proof seal is provided with an external interface, and in the natural state, the external interface is inserted into the Inside the upper end of the piston.
According to claim 1, a water-proof and air-replenishing hole press pump is characterized in that: the upper end of the ring seat of the lock cover is provided with an annular insertion groove;

Also includes an outer lock cover, the outer lock cover includes a body and a frustoconical cover,

The body part is inserted into the annular insertion groove, and the frustum-shaped cover part slides with the main column.
According to claim 1, 2 or 3, a waterproof and air-replenishing press pump, characterized in that: the upper end of the outer peripheral surface of the guide seal sleeve is provided with an annular protrusion, and the annular protrusion is connected to the The inner surface of the outer ring wall plate of the lower spring chamber is slidingly fitted and sealed.