CN216733650U

CN216733650U - Rear-pressure brush pen

Info

Publication number: CN216733650U
Application number: CN202123162055.7U
Authority: CN
Inventors: 黄士原; 黄兴钰; 巫致宽
Original assignee: Dongguan Bodeng Industrial Co ltd
Current assignee: Dongguan Bodeng Industrial Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-06-14
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses a rear-pressure brush pen, which comprises a pen tube, a valve seat, a refill seat, a piston rod, a rear gland, foam and a brush refill; the pen tube is provided with a liquid storage cavity with an opening at the front end; the valve seat is arranged in the front end opening of the liquid storage cavity; the refill seat is arranged at the front end of the pen tube and covers the valve seat in a sealing manner; the piston rod is elastically arranged on the valve seat in a pressing and movable manner and is positioned in the liquid storage cavity; the rear gland can be movably arranged at the rear end of the pen tube in a pressing way; the foam is arranged in the refill seat and positioned in front of the valve seat; the brush pen core is arranged on the pen core seat; the rear end of the liquid storage cavity of the pen tube is sealed with the rebound part, and the rear gland is arranged right behind the rebound part and connected with the rebound part, so that the rear gland can be movably arranged at the rear end of the pen tube in a pressing manner; the liquid in the liquid storage cavity can be conveyed to the foam and the hairbrush pen core by the product in a back pressing mode; and the rebound part is in a multilayer circular wavy structure, is rich in elasticity and has the effect of increasing rebound after being pressed.

Description

Rear-pressure brush pen

Technical Field

The utility model belongs to the technical field of the brush pen technique and specifically relates to indicate a back pressure brush pen.

Background

A conventional pen usually uses a container to contain a specific liquid, such as pen ink, and a brush pen core and a pen cap that can be removed at will are connected to the open end of the container, so that the contained liquid flows to the head of the brush pen core, and the liquid is absorbed by the capillary structure of the brush pen core, so that a user can write with the liquid on the brush pen core.

The existing hairbrush pen core is made of a soft material, so that water cannot be discharged in a mode of pressing the pen core forwards, and a pressing structure adopting the mode of pressing water backwards has the problem of poor resilience; in addition, when the existing hairbrush pen is transported, stored and displayed as a commodity, liquid in the hairbrush pen is easy to leak and contaminate everywhere due to careless squeezing of a container, the anti-overflow design structure of the known hairbrush pen core is complex, the production is inconvenient, and water outlet is not smooth due to unreasonable anti-overflow structure; therefore, a solution to the above problem is desired.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a back pressure brush pen, and it can effectively solve current brush pen and go out water and press the relatively poor problem of structure resilience because of the softer mode that can't do the refill and press forward of brush refill material.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a rear-pressing brush pen comprises a pen tube, a valve seat, a pen refill seat, a piston rod, a rear pressing cover, foam and a brush pen refill; the pen tube is provided with a liquid storage cavity with an opening at the front end, the back end of the liquid storage cavity is sealed with a rebound part, and the rebound part is of a multilayer circular wave structure; the valve seat is arranged in the front end opening of the liquid storage cavity; the refill seat is arranged at the front end of the pen tube and covers the valve seat in a sealing manner; the piston rod is of an integrated solid structure, can be elastically pressed and movably arranged on the valve seat and is positioned in the liquid storage cavity, and the rear end of the piston rod is connected with the rebound part; the rear gland can be movably arranged at the rear end of the pen tube in a pressing manner, and is positioned right behind the rebound part and connected with the rebound part; the foam is arranged in the refill seat and positioned in front of the valve seat; the brush pen core is arranged on the pen core seat, the front end of the brush pen core extends forwards out of the pen core seat, and the rear end of the brush pen core is inserted into the foamed plastic.

As a preferred scheme, the valve seat includes a front seat body and a rear seat body, the front seat body and the rear seat body are assembled together front and back and enclose to form a cavity, the front seat body is provided with a front through hole communicated with the cavity, the rear seat body is provided with a rear through hole communicated with the cavity, the rear through hole is a tapered hole, the outer side surface of the front end of the piston rod extends to form a tapered portion matched with the rear through hole, the tapered portion is located in the cavity, the front end of the piston rod is sleeved with a spring, one end of the spring abuts against the tapered portion, and the other end of the spring abuts against the front seat body.

Preferably, the front end of the piston rod is provided with a pressing part, the pressing part penetrates through the front through hole and presses the foam forwards, and the outer diameter of the pressing part is smaller than the inner diameter of the front through hole.

Preferably, the front side of the front seat body is provided with a rib protruding forwards.

Preferably, the ribs are arc-shaped and are two ribs symmetrically arranged with respect to the front through hole.

Preferably, the rear end of the refill seat is provided with an internal thread, the front end of the pen tube is provided with an external thread, and the external thread and the internal thread are screwed and connected fixedly.

Preferably, the brush pen further comprises a pen cover, the pen cover is detachably arranged on the pen core seat and covers the brush pen core, and the front end face of the pen cover is a concave face conforming to the shape of a pressed finger.

As a preferable scheme, a connection column extends backwards from the center of the springback part, a connection hole is formed in the rear gland, the connection column is inserted into the connection hole, a positioning hole is formed in the connection column, and the rear end of the piston rod is inserted into the positioning hole.

As a preferable scheme, the rear end of the pen tube is concavely provided with a groove, and the front end surface of the groove is a concave surface conforming to the shape of a pressed finger; the rear gland can be movably arranged in the groove in a pressing way.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

the rear end of a liquid storage cavity of the pen tube is sealed with a rebound part, and a rear gland is arranged right behind the rebound part and connected with the rebound part, so that the rear gland can be movably arranged at the rear end of the pen tube in a pressing manner; the liquid in the liquid storage cavity can be conveyed to the foam and the hairbrush pen core by the product in a back pressing mode; the rebound part is of a multilayer circular wavy structure, is rich in elasticity and has the effect of increasing rebound after being pressed; simultaneously, the piston rod is the integral type solid construction, makes things convenient for its elasticity to press to assemble in the stock solution intracavity movably, and simple structure brings the facility for production.

And secondly, the ribs are convexly arranged on the front side surface of the front seat body forward, so that the air convection between the valve body and the foam is increased, the liquid in the liquid storage cavity and the foam is favorably conveyed into the hairbrush refill, and the hairbrush refill brings convenience for use.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is an assembled perspective view of a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view of a preferred embodiment of the present invention;

FIG. 4 is a diagram illustrating a state of use of the preferred embodiment of the present invention;

FIG. 5 is a schematic view of a pen barrel according to a preferred embodiment of the present invention;

fig. 6 is an exploded view of the structure a of fig. 2.

The attached drawings indicate the following:

10. pen tube 101 and liquid storage cavity

102. External thread 103, groove

11. Springback part 111 and connecting column

112. Positioning hole 20, valve seat

201. Cavity 21, front seat body

211. Front through hole 212, rib

22. Rear seat body 221 and rear through hole

30. Refill seat 301 and internal thread

40. Piston rod 41 and tapered portion

42. Pressing part 50 and rear gland

51. Connecting hole 60, foamed plastic

70. Brush pen core 80 and pen cap

90. A spring.

Detailed Description

Referring to fig. 1 to 6, the detailed structure of the preferred embodiment of the present invention is shown, which includes a pen tube 10, a valve seat 20, a refill seat 30, a piston rod 40, a rear gland 50, a foam 60 and a brush refill 70.

The pen tube 10 is provided with a liquid storage cavity 101 with an opening at the front end, the rear end of the liquid storage cavity 101 is sealed with a rebound part 11, the rebound part 11 is of a multi-layer circular wave structure, the multi-layer wave wall thickness of the rebound part 11 is thin, and a good rebound effect can be achieved even if no elastic part is arranged; in this embodiment, the front end of the pen barrel 10 is provided with an external thread 102; a connecting column 111 extends backwards from the center of the springback part 11, and a positioning hole 112 is formed in the connecting column 111; the rear end of the pen tube 10 is concavely provided with a groove 103, and the front end face of the groove 103 is a concave face conforming to the shape of a pressed finger.

The valve seat 20 is installed in the front end opening of the liquid storage chamber 101; in this embodiment, the valve seat 20 includes a front seat body 21 and a rear seat body 22, the front seat body 21 and the rear seat body 22 are assembled together in a front-back manner and enclose to form a cavity 201, the front seat body 21 is provided with a front through hole 211 communicating with the cavity 201, the rear seat body 22 is provided with a rear through hole 221 communicating with the cavity 201, and the rear through hole 221 is a tapered hole; the front side of the front seat body 21 is convexly provided with ribs 212 forward to increase air convection, and the ribs 212 are arc-shaped and are two symmetrically arranged relative to the front through hole 211.

The refill seat 30 is arranged at the front end of the pen tube 10 and covers the valve seat 20; in this embodiment, the rear end of the refill seat 30 is provided with an internal thread 301, and the internal thread 301 is screwed and fixed with the external thread 102.

The piston rod 40 is of an integrated solid structure, is simple in structure and convenient to assemble, the piston rod 40 can be elastically pressed and movably arranged on the valve seat 20 and is positioned in the liquid storage cavity 101, and the rear end of the piston rod 40 is connected with the rebound part 11; in this embodiment, a tapered portion 41 adapted to the rear through hole 221 extends from an outer side surface of the front end of the piston rod 40, the tapered portion 41 is located in the cavity 201, the front end of the piston rod 40 is sleeved with a spring 90, one end of the spring 90 abuts against the tapered portion 41, and the other end of the spring 90 abuts against the front seat 21; the rear end of the piston rod 40 is inserted into the positioning hole 112; the front end of the piston rod 40 is provided with a pressing part 42, and the pressing part 42 penetrates through the front through hole 211 and is pressed forwards against the foam 60; the outer diameter of the pressing portion 42 is smaller than the inner diameter of the front through hole 211.

The rear gland 50 is arranged at the rear end of the pen tube 10 in a pressing and movable manner, and the rear gland 50 is positioned right behind the rebound part 11 and is connected with the rebound part 11; in the present embodiment, the rear cover 50 has a connection hole 51 therein, the connection post 111 is inserted into the connection hole 51, and the rear cover 50 is movably mounted in the groove 103 in a pressing manner, so that the rear cover 50 is prevented from being touched by mistake.

The foam 60 is disposed in the refill seat 30 and in front of the valve seat 20.

The brush cartridge 70 is mounted on the cartridge holder 30, the front end of the brush cartridge 70 is protruded forward of the cartridge holder 30, and the rear end of the brush cartridge 70 is inserted into the foam 60.

The writing brush further comprises a pen cap 80, the pen cap 80 is detachably arranged on the pen core seat 30 and covers the brush pen core 70, the front end surface of the pen cap 80 is a concave surface conforming to the shape of a pressing finger, and the pen cap 80 can be overlapped on the rear pressing cover 50, so that the comfort level can be increased, and the pressing force can be reduced.

Detailed description the assembly process of this embodiment is as follows:

firstly, the piston rod 40 is inserted into the liquid storage cavity 101 through the rear through hole 221 of the rear seat body 22, and the rear end of the piston rod 40 is connected with the rebound part 11; then, the spring 90 is sleeved at the front end of the piston rod 40, and the front seat body 21 and the rear seat body 22 are spliced together front and back; then, the brush pen core 70 is installed on the pen core seat 30, and the foam 60 is arranged in the pen core seat 30; finally, the refill seat 30 and the pen tube 10 are screwed and fixed.

When the brush pen is used, the rear gland 50 is pressed, the rebound part 11 and the spring 90 are compressed, so that the piston rod 40 opens the rear through hole 221 downwards, liquid flows to the cavity 201 from the liquid storage cavity 101 and then enters the foam 60, and the liquid permeates into the brush pen core 70 to be discharged.

The utility model discloses a design focus lies in: firstly, a rebound part is sealed at the rear end of a liquid storage cavity of the pen tube, and a rear gland is arranged right behind the rebound part and connected with the rebound part, so that the rear gland can be movably arranged at the rear end of the pen tube in a pressing manner; the liquid in the liquid storage cavity can be conveyed to the foam and the hairbrush pen core by the product in a back pressing mode; the rebound part is of a multilayer circular wavy structure, is rich in elasticity and has the effect of increasing rebound after being pressed; meanwhile, the piston rod is of an integrated solid structure, so that the piston rod can be conveniently and flexibly assembled in the liquid storage cavity by elastic pressing, the structure is simple, and convenience is brought to production; secondly, through protruding being equipped with the rib forward in the leading flank of preceding pedestal, increase the air convection current before valve body and the bubble cotton, be favorable to the liquid transport in stock solution chamber and the bubble cotton to the brush refill, facilitate for the use.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A back pressure brush pen is characterized in that: comprises a pen tube, a valve seat, a refill seat, a piston rod, a rear gland, foam and a hairbrush refill; the pen tube is provided with a liquid storage cavity with an opening at the front end, the back end of the liquid storage cavity is sealed with a rebound part, and the rebound part is of a multilayer circular wave structure; the valve seat is arranged in the front end opening of the liquid storage cavity; the refill seat is arranged at the front end of the pen tube and covers the valve seat in a sealing way; the piston rod is of an integrated solid structure, can be elastically pressed and movably arranged on the valve seat and is positioned in the liquid storage cavity, and the rear end of the piston rod is connected with the rebound part; the rear gland can be movably arranged at the rear end of the pen tube in a pressing manner, and is positioned right behind the rebound part and connected with the rebound part; the foam is arranged in the refill seat and positioned in front of the valve seat; the brush pen core is arranged on the pen core seat, the front end of the brush pen core extends forwards out of the pen core seat, and the rear end of the brush pen core is inserted into the foamed plastic.

2. The rear pressure brush pen according to claim 1, wherein: the valve seat comprises a front seat body and a rear seat body, the front seat body and the rear seat body are spliced together in the front and the rear direction and form a cavity in an enclosing mode, a front through hole communicated with the cavity is formed in the front seat body, a rear through hole communicated with the cavity is formed in the rear seat body, the rear through hole is a tapered hole, a tapered portion matched with the rear through hole extends out of the outer side face of the front end of the piston rod, the tapered portion is located in the cavity, a spring is sleeved at the front end of the piston rod, one end of the spring abuts against the tapered portion, and the other end of the spring abuts against the front seat body.

3. The post-pressure brush pen according to claim 2, wherein: the front end of the piston rod is provided with a pressing part which penetrates through the front through hole to press the foam forwards, and the outer diameter of the pressing part is smaller than the inner diameter of the front through hole.

4. The rear pressure brush pen according to claim 2, wherein: the front side surface of the front seat body is convexly provided with a rib forwards.

5. The rear pressure brush pen according to claim 4, wherein: the rib is the arc to for two of relative preceding through-hole symmetry setting.

6. The rear pressure brush pen according to claim 1, wherein: the rear end of the refill seat is provided with internal threads, the front end of the pen tube is provided with external threads, and the external threads and the internal threads are screwed and connected fixedly.

7. The rear pressure brush pen according to claim 1, wherein: the brush pen further comprises a pen cover, the pen cover is detachably arranged on the pen core seat and covers the brush pen core, and the front end face of the pen cover is a concave surface conforming to the shape of a pressing finger.

8. The rear pressure brush pen according to claim 1, wherein: the center of the springback part extends backwards to form a connecting column, a connecting hole is formed in the rear gland, the connecting column is inserted into the connecting hole, a positioning hole is formed in the connecting column, and the rear end of the piston rod is inserted into the positioning hole.

9. The rear pressure brush pen according to claim 1, wherein: the rear end of the pen tube is concavely provided with a groove, and the front end surface of the groove is a concave surface conforming to the shape of a pressing finger; the rear gland can be movably arranged in the groove in a pressing way.