CN220663453U

CN220663453U - Pump head device

Info

Publication number: CN220663453U
Application number: CN202223358149.6U
Authority: CN
Inventors: 李红彪
Original assignee: Zhongshan Huabaole Daily Necessities Co ltd
Current assignee: Zhongshan Huabaole Daily Necessities Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2024-03-26
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a pump head device, which is characterized in that a first reset cavity which can increase the volume of a movable component and generate air pressure difference with external atmospheric pressure when the movable component slides downwards relative to a base component is formed between the movable component and the base component; when the movable assembly is used, the movable assembly is pressed to enable the movable assembly to slide downwards relative to the base assembly, so that liquid in the temporary storage cavity can flow out of the outer side, the temporary storage cavity is isolated from the inner cavity of the container, and when the movable assembly slides downwards, the volume of the first reset cavity is increased, the atmospheric pressure in the first reset cavity is smaller than the external atmospheric pressure, and therefore the first reset cavity and the outside generate air pressure difference; therefore, the volume of the first reset cavity is changed, so that the air pressure difference is generated between the air pressure in the first reset cavity and the external atmospheric pressure, the function of automatically resetting the movable assembly is realized, and the structure of resetting is realized by adopting a spring instead, so that the utility model has the characteristics of simple structure, safety, reliability and low cost.

Description

Pump head device

Technical Field

The present utility model relates to a pump head device.

Background

In order to facilitate taking out the substances in the inner cavity of the container, a pump head device is generally adopted to take out the substances in the inner cavity of the container, and when the step of resetting is carried out, the pump head device is usually reset by adopting a spring made of metal, plastic, silica gel or other elastic materials, but the pump head device and the container have the problems of high manufacturing cost, complex structure and unsafe caused by adopting the spring for resetting.

In addition, the parts of the pump head device in the market at present are generally in an integrally formed integral structure during demolding, and the production difficulty is caused by the complex structure of the parts.

The present utility model has been made in view of the above problems.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the pump head device which can solve the problems existing in the prior art and has the characteristics of simple structure, safety, reliability and low cost.

The utility model is realized by the following technical scheme:

the pump head device comprises a base component 1, wherein a movable component 2 is slidably connected to the base component 1, a temporary storage cavity 3 is formed between the movable component 2 and the base component 1, when the movable component 2 slides downwards relative to the base component 1, the temporary storage cavity 3 is isolated from the inner cavity of a container and communicated with the outside, and when the movable component 2 slides upwards relative to the base component 1, the temporary storage cavity 3 is communicated with the inner cavity of the container and isolated from the outside; a first reset cavity 100 is formed between the movable assembly 2 and the base assembly 1, and when the movable assembly 2 slides downwards relative to the base assembly 1, the volume of the first reset cavity can be increased to generate air pressure difference with external atmospheric pressure.

The pump head device is characterized in that the base assembly 1 comprises a connecting base 11 capable of being connected with a container mouth, a temporary storage tube 12 with an opening at the upper end and a blocking at the lower end is arranged on the connecting base 11, the movable assembly 2 comprises a movable tube 21 capable of being slidably connected with the temporary storage tube 12, the opening at the lower end and the blocking at the upper end, a movable tube sealing ring 211 capable of being in sealing connection with the outer wall of the temporary storage tube 12 is arranged on the inner wall of the movable tube 21, a temporary storage tube sealing ring 121 capable of being in sealing connection with the inner wall of the movable tube 21 is arranged on the outer wall of the temporary storage tube 12, and the first reset cavity 100 is defined by the outer wall of the temporary storage tube 12, the temporary storage tube sealing ring 121, the inner wall of the movable tube 21 and the movable tube sealing ring 211; the temporary storage cavity 3 is formed by enclosing the inner cavity of the temporary storage pipe 12 and the inner cavity of the movable pipe 21.

A pump head apparatus as described above, wherein said movable assembly 2 further comprises a liquid outlet pipe 22 which is provided inside the movable pipe 21 and communicates with the outside, said liquid outlet pipe 22 being connected to the movable pipe 21; the movable assembly 2 and the base assembly 1 are provided with a valve assembly 4 which can be communicated with the inner cavity of the container and can be matched with the liquid outlet pipe 22, a first liquid outlet control structure 5 which can connect or isolate the temporary storage cavity 3 and the inner cavity of the liquid outlet pipe 22 is arranged between the liquid outlet pipe 22 and the valve assembly 4, and a second liquid outlet control structure 6 which can isolate the temporary storage cavity 3 from the inner cavity of the container when the liquid outlet pipe 22 is communicated with the temporary storage cavity 3 by the first liquid outlet control structure 5 and can isolate the temporary storage cavity 3 from the inner cavity of the container when the first liquid outlet control structure 5 isolates the temporary storage cavity 3 from the liquid outlet pipe 22 is also arranged between the liquid outlet pipe 22 and the valve assembly 4.

The pump head device is characterized in that the valve assembly 4 comprises a first valve pipe 41 which can be connected with the connecting base 11 or the temporary storage pipe 12, the upper end of the first valve pipe 41 is blocked, the lower end of the first valve pipe 41 is opened, the lower port of the first valve pipe 41 is communicated with the inner cavity of the container, the upper end of the first valve pipe 41 is connected with a second valve pipe 42 with the lower end blocked and the upper end opened, the second valve pipe 42 is positioned at the inner side of the liquid outlet pipe 22, and the upper port of the second valve pipe 42 is communicated with the inner cavity of the liquid outlet pipe 22; the first liquid outlet control structure 5 comprises a first liquid outlet window 51 arranged on the side wall of the liquid outlet pipe 22 and communicated with the temporary storage cavity 3, and a second liquid outlet window 52 which is communicated with the inner cavity of the second valve pipe 42 and can be aligned or misplaced with the first liquid outlet window 51 is arranged on the side wall of the second valve pipe 42.

A pump head device as described above, wherein the second liquid outlet control structure 6 includes a third liquid outlet window 61 provided on a side wall of the first valve tube 41 and capable of communicating the inner cavity of the first valve tube 41 with the temporary storage chamber 3, and the movable assembly 2 slides downward relative to the base assembly 1, and when the first liquid outlet window 51 is aligned with the second liquid outlet window 52, the third liquid outlet window 61 is blocked by a side wall of the liquid outlet tube 22; the third outlet window 61 is opened when the movable assembly 2 slides upwards relative to the base assembly 1 and when the first outlet window 51 is displaced from the second outlet window 52.

The pump head device is characterized in that a pushing structure 7 which can be pushed by the liquid outlet pipe 22 to enable the valve assembly 4 to slide downwards relative to the base assembly 1 when the movable assembly 2 slides downwards relative to the base assembly 1 and the first liquid outlet control structure 5 communicates the temporary storage cavity 3 with the inner cavity of the liquid outlet pipe 22 is arranged between the liquid outlet pipe 22 and the valve assembly 4; the base assembly 1 further comprises a connecting pipe 13 which can be connected with the connecting base 11 or the temporary storage pipe 12 and is communicated with the temporary storage pipe 12, the first valve pipe 41 is movably connected with the connecting base 11 and is positioned at the inner side of the connecting pipe 13, and a second reset cavity 200 which can increase the volume of the first valve pipe 41 and generate air pressure difference with external atmospheric pressure when the first valve pipe 41 slides downwards relative to the connecting pipe 13 is formed between the first valve pipe 41 and the connecting pipe 13.

The pump head device as described above is characterized in that the inner wall of the connecting pipe 13 is provided with a connecting pipe sealing ring 131 capable of being connected with the outer wall of the first valve pipe 41 in a sealing manner, the outer wall of the first valve pipe 41 is provided with a first valve pipe sealing ring 411 capable of being connected with the inner wall of the connecting pipe 13 in a sealing manner, and the second reset cavity 200 is defined by the inner wall of the connecting pipe 13, the connecting pipe sealing ring 131, the outer wall of the first valve pipe 41 and the first valve pipe sealing ring 411.

A pump head apparatus as described above, wherein said first valve tube sealing ring 411 is detachably connected to the first valve tube 41.

The pump head device is characterized in that the pushing structure 7 is a pushing step which is arranged on the first valve tube 41 and can be pushed by the edge of the lower port of the liquid outlet tube 22 when the liquid outlet tube 22 slides downwards, so that the first valve tube 41 slides downwards.

The pump head device is characterized in that the connecting pipe 13 is detachably connected with the connecting base 11 or the temporary storage pipe 12.

A pump head apparatus as described above, wherein said connection base 11 is detachably connected to a temporary storage pipe 12.

A pump head device as described above, wherein the base assembly 1 is provided with an air intake passage which connects the inner cavity of the container with the outside.

In the pump head apparatus, a third reset chamber 300 is formed between the movable assembly 2 and the base assembly 1, and the third reset chamber is formed between the movable assembly 2 and the base assembly 1, wherein the third reset chamber can reduce the volume of the movable assembly 2 when the movable assembly slides downwards relative to the base assembly 1 so as to generate an air pressure difference with external atmospheric pressure.

A pump head apparatus as described above, wherein a locking structure 400 capable of locking the movable assembly 2 relative to the base assembly 1 is provided between the movable assembly 2 and the base assembly 1.

Compared with the prior art, the utility model has the following advantages:

1. the utility model can increase the volume of the movable component and generate air pressure difference with external atmospheric pressure by forming a first reset cavity between the movable component and the base component when the movable component slides downwards relative to the base component; when the movable assembly is used, the movable assembly is pressed to enable the movable assembly to slide downwards relative to the base assembly, so that liquid in the temporary storage cavity can flow out of the outer side, the temporary storage cavity is isolated from the inner cavity of the container, and when the movable assembly slides downwards, the volume of the first reset cavity is increased, the atmospheric pressure in the first reset cavity is smaller than the external atmospheric pressure, and therefore the first reset cavity and the outside generate air pressure difference; when the external force acting on the movable assembly is removed, the air pressure in the first reset cavity pulls the movable assembly to slide upwards for reset at the moment, so that the liquid in the inner cavity of the container enters the temporary storage cavity, and the temporary storage cavity is isolated from the outside.

2. According to the utility model, the connecting pipe is detachably connected with the connecting base or the temporary storage pipe, so that the base assembly is divided into the connecting base, the temporary storage pipe and the connecting pipe which are independent of each other, and the production can be facilitated.

3. According to the utility model, the function of automatic resetting of the movable assembly is realized through the first resetting cavity, the second resetting cavity and the third resetting cavity, the structure of resetting is realized by adopting a spring instead, the resetting effect can be improved, and the movable assembly resetting device has the characteristics of safety, reliability and low cost.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is one of the sectional views of embodiment 1 of the present utility model;

FIG. 2 is a second cross-sectional view of embodiment 1 of the present utility model;

FIG. 3 is a third cross-sectional view of embodiment 1 of the present utility model;

FIG. 4 is a cross-sectional view of example 2 of the present utility model;

FIG. 5 is a cross-sectional view of example 3 of the present utility model;

FIG. 6 is a cross-sectional view of example 4 of the present utility model;

FIG. 7 is a cross-sectional view of example 5 of the present utility model;

FIG. 8 is a cross-sectional view of example 6 of the present utility model;

FIG. 9 is one of the sectional views of embodiment 7 of the present utility model;

FIG. 10 is a second cross-sectional view of embodiment 7 of the present utility model;

fig. 11 is an exploded view of example 7 of the present utility model.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to fig. 1-11.

Examples

As shown in fig. 1-3, a pump head device of the present utility model comprises a base assembly 1, wherein a movable assembly 2 is slidably connected to the base assembly 1, a temporary storage cavity 3 is formed between the movable assembly 2 and the base assembly 1, when the movable assembly 2 slides downward relative to the base assembly 1, the temporary storage cavity 3 is isolated from the container cavity and is communicated with the outside, and when the movable assembly 2 slides upward relative to the base assembly 1, the temporary storage cavity 3 is communicated with the container cavity and is isolated from the outside; a first reset cavity 100 is formed between the movable assembly 2 and the base assembly 1, and when the movable assembly 2 slides downwards relative to the base assembly 1, the volume of the first reset cavity can be increased to generate air pressure difference with external atmospheric pressure. The utility model can increase the volume of the movable component and generate air pressure difference with external atmospheric pressure by forming a first reset cavity between the movable component and the base component when the movable component slides downwards relative to the base component; when the movable assembly is used, the movable assembly is pressed to enable the movable assembly to slide downwards relative to the base assembly, so that liquid in the temporary storage cavity can flow out of the outer side, the temporary storage cavity is isolated from the inner cavity of the container, and when the movable assembly slides downwards, the volume of the first reset cavity is increased, the atmospheric pressure in the first reset cavity is smaller than the external atmospheric pressure, and therefore the first reset cavity and the outside generate air pressure difference; when the external force acting on the movable assembly is removed, the air pressure in the first reset cavity pulls the movable assembly to slide upwards for reset at the moment, so that the liquid in the inner cavity of the container enters the temporary storage cavity, and the temporary storage cavity is isolated from the outside.

As shown in fig. 1-3, the base assembly 1 comprises a connection base 11 capable of being connected with a container mouth, a temporary storage tube 12 with an opening at the upper end and a blocking at the lower end is arranged on the connection base 11, the movable assembly 2 comprises a movable tube 21 capable of being slidably connected with the temporary storage tube 12, the opening at the lower end and the blocking at the upper end, a movable tube sealing ring 211 capable of being in sealing connection with the outer wall of the temporary storage tube 12 is arranged on the inner wall of the movable tube 21, a temporary storage tube sealing ring 121 capable of being in sealing connection with the inner wall of the movable tube 21 is arranged on the outer wall of the temporary storage tube 12, and the first reset cavity 100 is surrounded by the outer wall of the temporary storage tube 12, the temporary storage tube sealing ring 121, the inner wall of the movable tube 21 and the movable tube sealing ring 211; the temporary storage cavity 3 is formed by enclosing the inner cavity of the temporary storage pipe 12 and the inner cavity of the movable pipe 21. When the movable assembly 2 is used, the movable tube 21 is pushed down to slide downwards relative to the temporary storage tube 12, so that the volume of the first reset cavity 100 is increased, the air pressure in the first reset cavity 100 is smaller than the external atmospheric pressure, and when the external force acting on the movable assembly is removed, the air pressure in the first reset cavity 100 pulls the movable tube 21 to slide upwards relative to the temporary storage tube 12 for reset.

As shown in fig. 1-3, the movable assembly 2 further includes a liquid outlet pipe 22 located inside the movable pipe 21 and communicating with the outside, and the liquid outlet pipe 22 is connected to the movable pipe 21; the movable assembly 2 and the base assembly 1 are provided with a valve assembly 4 which can be communicated with the inner cavity of the container and can be matched with the liquid outlet pipe 22, a first liquid outlet control structure 5 which can connect or isolate the temporary storage cavity 3 and the inner cavity of the liquid outlet pipe 22 is arranged between the liquid outlet pipe 22 and the valve assembly 4, and a second liquid outlet control structure 6 which can isolate the temporary storage cavity 3 from the inner cavity of the container when the liquid outlet pipe 22 is communicated with the temporary storage cavity 3 by the first liquid outlet control structure 5 and can isolate the temporary storage cavity 3 from the inner cavity of the container when the first liquid outlet control structure 5 isolates the temporary storage cavity 3 from the liquid outlet pipe 22 is also arranged between the liquid outlet pipe 22 and the valve assembly 4.

As shown in fig. 1-3, the valve assembly 4 comprises a first valve tube 41 capable of being connected with the connection base 11 or the temporary storage tube 12, the upper end of the first valve tube 41 is blocked, the lower end of the first valve tube 41 is open, the lower port of the first valve tube 41 is communicated with the inner cavity of the container, the upper end of the first valve tube 41 is connected with a second valve tube 42 with the lower end blocked and the upper end open, the second valve tube 42 is positioned at the inner side of the liquid outlet tube 22, and the upper port of the second valve tube 42 is communicated with the inner cavity of the liquid outlet tube 22; the first liquid outlet control structure 5 comprises a first liquid outlet window 51 arranged on the side wall of the liquid outlet pipe 22 and communicated with the temporary storage cavity 3, and a second liquid outlet window 52 which is communicated with the inner cavity of the second valve pipe 42 and can be aligned or misplaced with the first liquid outlet window 51 is arranged on the side wall of the second valve pipe 42.

As shown in fig. 1-3, the second liquid outlet control structure 6 includes a third liquid outlet window 61 provided on the sidewall of the first valve tube 41 and capable of communicating the inner cavity of the first valve tube 41 with the temporary storage chamber 3, and the movable assembly 2 slides downward relative to the base assembly 1, and when the first liquid outlet window 51 is aligned with the second liquid outlet window 52, the third liquid outlet window 61 is blocked by the sidewall of the liquid outlet tube 22; the third outlet window 61 is opened when the movable assembly 2 slides upwards relative to the base assembly 1 and when the first outlet window 51 is displaced from the second outlet window 52. When in use, the movable assembly 2 is pressed downwards to enable the movable tube 21 to slide downwards relative to the temporary storage tube 12, so that the volume of the first reset cavity 100 is increased, the air pressure in the first reset cavity 100 is smaller than the external atmospheric pressure, and meanwhile, the volume of the temporary storage cavity 3 is compressed by the movable tube 21 and gradually reduced;

the liquid outlet pipe 22 slides downwards towards the opposite valve assembly 4, in the sliding process, a first liquid outlet window 51 on the liquid outlet pipe 22 is aligned and communicated with a second liquid outlet window 52 on the second valve pipe 42, at the moment, liquid contained in the temporary storage cavity 3 flows out of the outer port of the liquid outlet pipe 22 through the first liquid outlet window 51, the second liquid outlet window 52 and the inner cavity of the liquid outlet pipe 22, at the moment, a third liquid outlet window 61 is blocked by the side wall of the liquid outlet pipe 22, and the temporary storage cavity 3 is isolated from the inner cavity of the container;

when the external force acting on the movable assembly is removed, the air pressure in the first reset cavity 100 pulls the movable tube 21 to slide upwards for reset, so that the movable assembly 2 is reset upwards relative to the base assembly 1, and in the reset process, the first liquid outlet window 51 on the liquid outlet pipe 22 and the second liquid outlet window 52 on the second valve pipe 42 are dislocated, so that the temporary storage cavity 3 is isolated from the inner cavity of the liquid outlet pipe 22; at the same time, the third liquid outlet window 61 on the first valve tube 41 is opened by the side wall of the liquid outlet tube 22, so that the temporary storage cavity 3 is communicated with the inner cavity of the container, and at the moment, the liquid contained in the inner cavity of the container is pumped into the temporary storage cavity 3 through the inner cavity of the first valve tube 51 and the third liquid outlet window 61.

As shown in fig. 1-3, a pushing structure 7 is arranged between the liquid outlet pipe 22 and the valve assembly 4, and can be pushed by the liquid outlet pipe 22 to enable the valve assembly 4 to slide downwards relative to the base assembly 1 when the movable assembly 2 slides downwards relative to the base assembly 1 and the first liquid outlet control structure 5 communicates the temporary storage cavity 3 with the inner cavity of the liquid outlet pipe 22; the base assembly 1 further comprises a connecting pipe 13 which can be connected with the connecting base 11 or the temporary storage pipe 12 and is communicated with the temporary storage pipe 12, the first valve pipe 41 is movably connected with the connecting base 11 and is positioned at the inner side of the connecting pipe 13, and a second reset cavity 200 which can increase the volume of the first valve pipe 41 and generate air pressure difference with external atmospheric pressure when the first valve pipe 41 slides downwards relative to the connecting pipe 13 is formed between the first valve pipe 41 and the connecting pipe 13.

As shown in fig. 1-3, the inner wall of the connecting pipe 13 is provided with a connecting pipe sealing ring 131 capable of being connected with the outer wall of the first valve pipe 41 in a sealing manner, the outer wall of the first valve pipe 41 is provided with a first valve pipe sealing ring 411 capable of being connected with the inner wall of the connecting pipe 13 in a sealing manner, and the second reset cavity 200 is defined by the inner wall of the connecting pipe 13, the connecting pipe sealing ring 131, the outer wall of the first valve pipe 41 and the first valve pipe sealing ring 411.

As shown in fig. 1-3, the first valve tube sealing ring 411 is detachably connected to the first valve tube 41 for ease of production.

As shown in fig. 1-3, the pushing structure 7 is a pushing step that is disposed on the first valve tube 41 and can be pushed by the edge of the lower port of the liquid outlet tube 22 when the liquid outlet tube 22 slides downward, so that the first valve tube 41 slides downward.

As shown in fig. 1-3, for easy and smooth extraction, the base assembly 1 is provided with an air inlet passageway 8 for connecting the inner cavity of the container with the outside. When the liquid in the inner cavity of the container is pumped into the temporary storage cavity 3, external air enters the inner cavity of the container through the air inlet passage 8 to supplement air.

As shown in fig. 1-3, the air intake passage 8 includes an air intake slot 82 provided on the inner wall of the connection base 11 and communicating with the inner cavity of the container, the upper end of the air intake slot 82 communicates with an air inlet 81 provided on the upper end of the connection base 11, and a movable pipe sealing ring 212 is provided on the outer wall of the movable pipe 21, which can open the air inlet 81 when the movable pipe 21 slides downward and can block the air inlet 81 when the movable pipe 21 slides upward and resets.

Working principle of example 1:

as shown in fig. 1 to 3, in use, the user operates the movable assembly 2 to slide downward relative to the base assembly 1, and during this sliding process, the movable tube 21 slides downward relative to the temporary storage tube 12, so that the volume in the first reset chamber 100 gradually increases, and the air pressure in the first reset chamber 100 is less than the external atmospheric pressure;

simultaneously, the liquid outlet pipe 22 moves downwards relative to the valve assembly 4, so that the first liquid outlet window 51 is aligned and communicated with the second liquid outlet window 52, the temporary storage cavity is communicated with the inner cavity of the liquid outlet pipe, the third liquid outlet window 61 is blocked by the inner wall of the liquid outlet pipe 22, the temporary storage cavity is isolated from the inner cavity of the container, namely, the liquid in the temporary storage cavity 3 can flow out of the outer side from the outer port of the liquid outlet pipe;

then the edge of the lower port of the liquid outlet pipe 22 is abutted against the pushing step on the first valve pipe 41, so that the liquid outlet pipe 22 pushes the valve component 4 to move downwards, and the first valve pipe 41 slides downwards relative to the connecting pipe 13, so that the volume in the second reset cavity 200 is gradually increased, namely the air pressure in the second reset cavity 200 is smaller than the external atmospheric pressure;

when the external force acting on the movable assembly 2 is removed, the air pressure of the first reset cavity 100 pulls the movable tube 21 to slide upwards and reset relative to the temporary storage tube 12, the air pressure of the second reset cavity 200 pulls the first valve tube 41 to slide upwards and reset relative to the connecting tube, and in the resetting process, the air pressure in the first reset cavity 100 is greater than the air pressure in the second reset cavity 20, so that the first liquid outlet window 51 of the liquid outlet tube 22 and the second liquid outlet window 52 on the second valve tube 42 are misplaced, the temporary storage cavity 3 is isolated from the outside, the third liquid outlet window 61 on the first valve tube 41 is opened by the side wall of the liquid outlet tube 22, and the temporary storage cavity 3 is communicated with the inner cavity of the container.

Examples

Embodiment 2 is different from embodiment 1 in that the connection pipe 13 is detachably connected with the connection base 11 as shown in fig. 4. The connecting pipe sealing ring 131 is formed by the edge of the lower port of the temporary storage pipe 12.

Examples

Embodiment 3 is different from embodiment 1 in that the connection pipe 13 is detachably connected with the connection base 11 as shown in fig. 5. The connecting pipe sealing ring 131 is formed by the edge of the lower port of the temporary storage pipe 12. The first valve tube sealing ring 411 and the first valve tube 41 are integrally formed as a whole.

Examples

Embodiment 4 is different from embodiment 1 in that, as shown in fig. 6, the connecting pipe 13 and the temporary storage pipe 12 are integrally formed as a whole. The connecting pipe 13 and the temporary storage pipe 12 are detachably connected with the connecting base 11, respectively.

Examples

Embodiment 5 is different from embodiment 1 in that the temporary storage pipe 12 is detachably connected to the connection base 11 as shown in fig. 7. The connecting pipe 13 is detachably connected with the temporary storage chamber 12. The connecting pipe sealing ring 131 is formed by the edge of the lower port of the temporary storage pipe 12.

Examples

Embodiment 6 is different from embodiment 1 in that the temporary storage pipe 12 is detachably connected to the connection base 11 as shown in fig. 8. The connecting pipe 13 is detachably connected with the temporary storage chamber 12. The connecting pipe sealing ring 131 is formed by the edge of the lower port of the temporary storage pipe 12. The first valve tube sealing ring 411 and the first valve tube 41 are integrally formed as a whole.

Examples

Embodiment 7 is different from embodiment 1 in that, as shown in fig. 9 to 11, a third reset chamber 300 is formed between the movable assembly 2 and the base assembly 1, which can reduce the volume of the movable assembly 2 when it slides downward with respect to the base assembly 1 to generate an air pressure difference with the external atmospheric pressure. When the movable assembly is used, the movable assembly is pressed to enable the movable assembly to slide downwards relative to the base assembly, so that liquid in the temporary storage cavity can flow out of the outer side, the temporary storage cavity is isolated from the inner cavity of the container, in the process that the movable assembly slides downwards, the volume of the first reset cavity is increased, the atmospheric pressure in the first reset cavity is smaller than the external atmospheric pressure, so that the first reset cavity and the outside generate an air pressure difference, meanwhile, the volume of the third reset cavity 300 is reduced, the atmospheric pressure in the third reset cavity 300 is larger than the external atmospheric pressure, and the third reset cavity 300 and the outside generate an air pressure difference; when the external force action on the movable assembly is removed, the air pressure in the first reset cavity pulls the movable assembly to slide upwards for reset, and meanwhile, the air pressure in the third reset cavity 300 drives the movable assembly to slide upwards for reset, so that the liquid in the inner cavity of the container enters the temporary storage cavity, and the temporary storage cavity is isolated from the outside, therefore, the utility model realizes the function of automatically resetting the movable assembly by changing the air pressure difference between the air pressure in the first reset cavity and the air pressure in the third reset cavity 300 and the external atmospheric pressure by changing the volumes of the first reset cavity and the third reset cavity 300, and replaces the structure of adopting a spring to realize resetting.

As shown in fig. 9-11, a locking structure 400 capable of locking the movable assembly 2 relative to the base assembly 1 is arranged between the movable assembly 2 and the base assembly 1. When assembling, the movable assembly 2 is operated to slide downwards relative to the base assembly 1 until the locking structure 400 locks the movable assembly 2 relative to the base assembly 1, so that the movable assembly 2 is ensured to be always retracted into the base assembly 1 in the processes of storage, transportation, carrying and the like, thereby relatively reducing the whole volume of the pump head device and facilitating storage and transportation.

As shown in fig. 9-11, the locking structure 400 includes a locking protrusion 410 provided on an outer wall of the movable tube 21, a through hole 420 provided on the connection base 11 and used for allowing the locking protrusion 410 to pass through when the movable assembly 2 slides downward relative to the base assembly 1, and a locking notch 430 provided on the connection base 11 and communicated with the through hole 420, and when the locking protrusion 410 passes through the through hole 420, the movable assembly 2 rotates relative to the base assembly 1 to enable the locking protrusion 410 and the locking notch 430 to cooperate to lock the movable assembly 2 relative to the base assembly 1, so that locking is stable and design is reasonable.

As shown in fig. 9 and 10, the pushing structure 7 includes a pushing groove 71 provided on the second valve tube 42 and a pushing protrusion 72 provided at the lower end of the liquid outlet tube 22 and capable of being used with the pushing groove 71. When the movable assembly 2 slides downwards relative to the base assembly 1, the pushing protrusion 72 is in abutting fit with the lower wall of the pushing groove 71, and when the movable assembly 2 slides upwards relative to the base assembly 1 for resetting, the pushing protrusion 72 is in abutting fit with the upper wall of the pushing groove 71, so that the liquid outlet pipe 22 can conveniently drive the second valve pipe 42 to slide, and meanwhile, the liquid outlet pipe 22 can be prevented from being separated from the second valve pipe 42, and normal use is ensured.

Claims

1. The pump head device is characterized by comprising a base component (1), wherein a movable component (2) is slidably connected to the base component (1), a temporary storage cavity (3) is formed between the movable component (2) and the base component (1), when the movable component (2) slides downwards relative to the base component (1), the temporary storage cavity (3) is isolated from the inner cavity of the container and is communicated with the outside, and when the movable component (2) slides upwards relative to the base component (1), the temporary storage cavity (3) is communicated with the inner cavity of the container and is isolated from the outside; a first reset cavity (100) which can increase the volume of the movable component (2) and generate air pressure difference with external atmospheric pressure when the movable component (2) slides downwards relative to the base component (1) is formed between the movable component (2) and the base component (1);

the base assembly (1) comprises a connecting base (11) capable of being connected with a container opening, a temporary storage tube (12) with an opening at the upper end and a blocking at the lower end is arranged on the connecting base (11), the movable assembly (2) comprises a movable tube (21) capable of being connected with the temporary storage tube (12) in a sliding mode, the lower end of the movable tube is open, the upper end of the movable tube is blocked, a movable tube sealing ring (211) capable of being connected with the outer wall of the temporary storage tube (12) in a sealing mode is arranged on the inner wall of the movable tube (21), a temporary storage tube sealing ring (121) capable of being connected with the inner wall of the movable tube (21) in a sealing mode is arranged on the outer wall of the temporary storage tube (12), and the first reset cavity (100) is defined by the outer wall of the temporary storage tube (12), the temporary storage tube sealing ring (121), the inner wall of the movable tube (21) and the movable tube sealing ring (211); the temporary storage cavity (3) is formed by enclosing an inner cavity of the temporary storage pipe (12) and an inner cavity of the movable pipe (21);

the connecting base (11) is detachably connected with the temporary storage pipe (12).

2. A pump head apparatus according to claim 1, characterized in that the movable assembly (2) further comprises a liquid outlet pipe (22) located inside the movable pipe (21) and communicating with the outside, the liquid outlet pipe (22) being connected to the movable pipe (21); the movable assembly (2) is provided with a valve assembly (4) which can be communicated with the inner cavity of the container and can be matched with the liquid outlet pipe (22) between the movable assembly (2) and the base assembly (1), a first liquid outlet control structure (5) which can connect or isolate the temporary storage cavity (3) with the inner cavity of the liquid outlet pipe (22) is arranged between the liquid outlet pipe (22) and the valve assembly (4), and a second liquid outlet control structure (6) which can isolate the temporary storage cavity (3) from the inner cavity of the container when the first liquid outlet control structure (5) is communicated with the liquid outlet pipe (22) and can isolate the temporary storage cavity (3) from the inner cavity of the container when the first liquid outlet control structure (5) is isolated from the liquid outlet pipe (22).

3. A pump head device according to claim 2, characterized in that the valve assembly (4) comprises a first valve tube (41) capable of being connected with the connecting base (11) or the temporary storage tube (12), the upper end of the first valve tube (41) is blocked and the lower end is opened, the lower port of the first valve tube (41) is communicated with the inner cavity of the container, the upper end of the first valve tube (41) is connected with a second valve tube (42) with the lower end blocked and the upper end opened, the second valve tube (42) is positioned inside the liquid outlet tube (22), and the upper port of the second valve tube (42) is communicated with the inner cavity of the liquid outlet tube (22); the first liquid outlet control structure (5) comprises a first liquid outlet window (51) which is arranged on the side wall of the liquid outlet pipe (22) and is communicated with the temporary storage cavity (3), and a second liquid outlet window (52) which is communicated with the inner cavity of the second valve pipe (42) and can be aligned or misplaced with the first liquid outlet window (51) is arranged on the side wall of the second valve pipe (42).

4. A pump head apparatus according to claim 3, wherein the second tapping control structure (6) comprises a third tapping window (61) provided in a side wall of the first valve tube (41) and communicating the inner chamber of the first valve tube (41) with the temporary storage chamber (3), the movable assembly (2) sliding downwards relative to the base assembly (1) and being blocked by a side wall of the tapping tube (22) when the first tapping window (51) is aligned with the second tapping window (52); when the movable assembly (2) slides upwards relative to the base assembly (1) and when the first liquid outlet window (51) and the second liquid outlet window (52) are misplaced, the third liquid outlet window (61) is opened.

5. A pump head device according to claim 3, characterized in that a pushing structure (7) is arranged between the liquid outlet pipe (22) and the valve component (4), wherein the valve component (4) can slide downwards relative to the base component (1) by being pushed by the liquid outlet pipe (22) when the movable component (2) slides downwards relative to the base component (1) and the first liquid outlet control structure (5) communicates the temporary storage cavity (3) with the inner cavity of the liquid outlet pipe (22); the base assembly (1) further comprises a connecting pipe (13) which can be connected with the connecting base (11) or the temporary storage pipe (12) and is communicated with the temporary storage pipe (12), the first valve pipe (41) is movably connected with the connecting base (11) and is positioned on the inner side of the connecting pipe (13), and a second reset cavity (200) which can increase the volume of the first valve pipe (41) and generate air pressure difference with external atmospheric pressure when the first valve pipe (41) slides downwards relative to the connecting pipe (13) is formed between the first valve pipe (41) and the connecting pipe (13).

6. The pump head device according to claim 5, wherein the inner wall of the connecting pipe (13) is provided with a connecting pipe sealing ring (131) capable of being in sealing connection with the outer wall of the first valve pipe (41), the outer wall of the first valve pipe (41) is provided with a first valve pipe sealing ring (411) capable of being in sealing connection with the inner wall of the connecting pipe (13), and the second reset cavity (200) is formed by the inner wall of the connecting pipe (13), the connecting pipe sealing ring (131), the outer wall of the first valve pipe (41) and the first valve pipe sealing ring (411).

7. A pump head arrangement according to claim 6, characterized in that the first valve tube sealing ring (411) is detachably connected to the first valve tube (41).

8. A pump head apparatus according to claim 5, wherein the pushing structure (7) is a pushing step provided on the first valve tube (41) and capable of being pushed by the edge of the lower port of the liquid outlet tube (22) when the liquid outlet tube (22) slides downward, so that the first valve tube (41) slides downward.

9. Pump head device according to claim 5, characterized in that the connecting tube (13) is detachably connected to the connecting base (11) or the temporary storage tube (12).

10. A pump head apparatus according to any one of claims 1 to 9, wherein a third reset chamber (300) is formed between the movable member (2) and the base member (1) to reduce the volume of the movable member (2) when it slides downward relative to the base member (1) to create a pressure difference with the external atmospheric pressure.

11. Pump head device according to claim 1, characterized in that a locking structure (400) is provided between the movable element (2) and the base element (1) for locking the movable element (2) relative to the base element (1).