CN216300594U

CN216300594U - Writing brush

Info

Publication number: CN216300594U
Application number: CN202022701914.4U
Authority: CN
Inventors: 黄好语
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2022-04-15
Anticipated expiration: 2030-11-20

Abstract

The utility model provides a writing brush, and belongs to the technical field of writing tools. The ink storage brush pen solves the problems that the existing ink storage brush pen is troublesome to operate and small in capacity when needing ink. This writing brush, including the pen-holder, can dismantle the nib of connecting in the pen-holder front end and the brush hair of locating the nib front end, inner chamber and the air guide hole that extends along its length direction have in the pen-holder, inner chamber internal seal and sliding fit have a piston, the piston is cut apart into the inner chamber and is store up the ink chamber and admit air the chamber, the rear end and the chamber intercommunication of admitting air of air guide hole, have in the nib with store up the water conservancy diversion hole of ink chamber intercommunication and with the inlet port of the front end intercommunication of air guide hole, the front end in water conservancy diversion hole extends to brush hair department, the lateral wall of nib has the cavity, the front end and the cavity intercommunication of inlet port, be equipped with the resilience button that is used for controlling water conservancy diversion hole break-make in the cavity, still be equipped with on the nib when water conservancy diversion hole switches on and be used for to the pump gas structure of inlet port pump gas. The utility model has the advantages of reasonable structural design, large ink storage capacity, convenient operation and the like.

Description

Writing brush

Technical Field

The utility model belongs to the technical field of writing tools and relates to a writing brush.

Background

The traditional writing brush generally comprises a pen holder and a pen point, and does not have an ink storage function, so that the traditional writing brush adopts an ink dipping writing mode, and is inconvenient to carry ink when going out.

The Chinese patent discloses a fountain brush pen (No. CN 1070143), which comprises a pen head, a pen holder and an ink storage tube, wherein the pen head is connected with the ink storage tube through an ink amount control sleeve, the inner wall of the ink amount control sleeve is in threaded fit with a clamping ring fixed at the tail of the pen head, a guide storage layer capable of guiding and storing ink is arranged on the inner wall of a front cavity of the ink amount control sleeve, and ink in the ink storage tube supplies ink to the pen head through an ink guide groove on the outer wall of the clamping ring and the guide storage layer in the front cavity of the ink amount control sleeve, so that automatic sufficient ink supply can be ensured, ink can not drop randomly, the fountain brush can continuously write without dipping ink, and can be carried with a pen cap.

When the ink needs to be supplied to the writing brush, the tail sleeve is opened, the ink pumping piston is pushed to enable the ink in the ink storage tube to flow to the writing brush head, and the operation is complex; because the pole portion that pushes away the china ink piston occupies certain space, the inner structure overall arrangement is unreasonable, for increase ink storage tube capacity, just needs to increase the length of writing brush to lead to the length of whole writing brush longer, will influence the normal use of writing brush.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a writing brush convenient to operate during ink supply.

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

the utility model provides a writing brush, includes the pen-holder, can dismantle the pen hair of connecting in the nib of pen-holder front end and locating the nib front end, the pen-holder in have inner chamber and the air guide hole that extends along its length direction, inner chamber internal seal and sliding fit have a piston, the piston cut apart into the inner chamber and store up the ink chamber and admit air the chamber, the rear end and the chamber intercommunication that admits air of air guide hole, the nib in have with store up the air inlet of the water conservancy diversion hole of ink chamber intercommunication and with the front end intercommunication of air guide hole, the front end in water conservancy diversion hole extends to a writing brush hair department, the lateral wall of nib has the cavity, the front end and the cavity intercommunication of inlet port, the cavity in be equipped with the resilience button that is used for controlling water conservancy diversion hole break-make, the nib on still be equipped with when water conservancy diversion hole switches on and be used for the pump gas structure to the inlet port pump gas.

When the rebound button is not pressed, the ink storage cavity is in a closed state, and ink in the ink storage cavity cannot flow to the brush hair through the flow guide hole. When needing to carry chinese ink to the writing brush hair, press the resilience button, make the water conservancy diversion hole switch on, simultaneously through pumping structure to the inlet port pump gas, gaseous process air guide hole entering air inlet chamber, the pressure increase in the air inlet chamber promotes the piston and moves forward along the inner chamber, will be located the chinese ink of storing up the ink chamber and impel forward, chinese ink flows to the writing brush hair through the water conservancy diversion hole, after the chinese ink of flow direction writing brush hair is appropriate, unclamp the resilience button, close the water conservancy diversion hole after the resilience button kick-backs, stop supplying ink to the writing brush hair.

In foretell writing brush, the nib on have radial extension and with the mounting hole of water conservancy diversion hole intercommunication, the outer end and the cavity intercommunication of mounting hole, the inner of mounting hole is equipped with the spring, rebound button sealed and sliding fit in the mounting hole, rebound button on have the intercommunicating pore parallel with the water conservancy diversion hole, the spring action is in rebound button's the inner, intercommunicating pore and water conservancy diversion hole disconnection when not pressing rebound button.

In order to guarantee that the communication hole is parallel to the water conservancy diversion hole, set the cross-section of resilient button to non-circular, like square, regular hexagon etc. for the unable circumferential direction of resilient button. When ink needs to be conveyed to the pen hair, the rebound button is pressed to move towards the inner end of the mounting hole, the spring is compressed, the communication hole moves inwards together until the communication hole is communicated with the flow guide hole, and the ink in the ink storage cavity can flow to the pen hair through the flow guide hole and the communication hole.

After the rebound button is released, the rebound button moves outwards under the action of the compressed spring, and when the rebound button is reset to a normal state, the communication hole is disconnected with the flow guide hole. In order to prevent the rebound button from being separated from the mounting hole, a limit position can be arranged between the mounting hole and the rebound button so as to limit the moving range of the rebound button; or one end of the spring is fixed at the inner end of the mounting hole, and the inner end of the rebound button is fixedly connected with the other end of the spring.

In foretell writing brush, pump gas structure including locating the diaphragm that is used for sealing the cavity of cavity opening part, the outer end of resilient button wears out the diaphragm and links firmly with the diaphragm is sealed, resilient button on be equipped with the connecting hole of inner and cavity intercommunication, the outer end of connecting hole is located resilient button's outer terminal surface.

When needing to carry chinese ink to the brush hair, when pressing the rebound button, block up the connecting hole through the thumb, will drive the diaphragm and move to the cavity in the pressing process, the inside gas of cavity is compressed, when intercommunicating pore and water conservancy diversion hole intercommunication, because the atmospheric pressure of admitting air intracavity is greater than the pressure of storing up the intracavity, promotes the piston and moves forward, will be located the chinese ink propelling movement forward of storing up the intracavity. After the rebound button is loosened, the spring enables the rebound button to reset, the rebound button drives the diaphragm to reset, at the moment, outside air can enter the concave cavity through the connecting hole, and the piston cannot move after the rebound button is loosened.

The above operations are repeated to make proper amount of ink flow to the brush hair. The area of the diaphragm is approximately equal to that of the thumb surface, the diaphragm can be completely pressed into the concave cavity, unnecessary deformation of the diaphragm is avoided, and the reliability of pressure increase in the air inlet cavity is further ensured.

In the above writing brush, the air pumping structure includes a connection tube connected to the air inlet and an air bag connected to the other end of the connection tube. The connecting pipe is detachably connected with the air inlet, and when the communication hole is disconnected with the flow guide hole, the connecting pipe is not connected with the air inlet. When ink needs to be conveyed to the brush hair, the connecting pipe is connected with the air inlet, then the rebound button is pressed to enable the communicating hole to be communicated with the flow guide hole, then the inflatable air bag is extruded, air is pumped into the air inlet cavity through the air inlet and the air guide hole, the pressure in the air inlet cavity is increased, the piston is pushed to move forwards, and the ink in the ink storage cavity is pushed forwards. When the ink flowing to the brush hair is proper, the rebound button is loosened, and the connecting pipe is disconnected with the air inlet hole.

In the writing brush, the inner end of the mounting hole is provided with the air release hole, and the outer end of the air release hole extends to the outer surface of the brush head. When pressing the rebound button, the gaseous effluvium in the mounting hole is let out to the ventilative hole of accessible, avoids the rebound button to press unmovable problem.

In the writing brush, the rear end of the air inlet cavity is provided with a limiting bulge. When the ink storage cavity is filled with ink, the piston is prevented from completely abutting against the rear end of the air inlet cavity, and the situation that air cannot enter the air inlet cavity is avoided.

Compared with the prior art, the writing brush has the following advantages: the structure is reasonable in design, the operation is convenient when the ink is conveyed to the brush hair, and good sealing can be realized when the ink is not conveyed to the brush hair; the ink storage amount can be effectively ensured on the premise of not lengthening the length of the pen holder, and the internal space is reasonably utilized.

Drawings

FIG. 1 is a cross-sectional view of a writing brush in a non-ink-supplying state according to an embodiment.

FIG. 2 is a cross-sectional view of a writing brush in an ink supply state according to an embodiment.

FIG. 3 is a cross-sectional view of the pen tip provided in the first embodiment.

Fig. 4 is a sectional view of a writing brush provided in the second embodiment.

In the figure, 1, a penholder; 11. an air vent; 12. an ink storage chamber; 13. an air inlet cavity; 14. a limiting bulge; 2. a pen point; 21. a flow guide hole; 22. an air inlet; 23. a concave cavity; 24. mounting holes; 25. an air release hole; 3. writing brush hair; 4. a piston; 5. a rebound button; 51. a communicating hole; 52. connecting holes; 6. a spring; 7. a membrane; 8. taking over a pipe; 9. an inflatable air bag.

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.

Example one

The writing brush shown in fig. 1 comprises a pen holder 1, a pen point 2 detachably connected to the front end of the pen holder 1 and a brush 3 arranged at the front end of the pen point 2, specifically, an external thread is arranged at the rear end of the pen point 2, an internal thread is arranged at the front end of the pen holder 1, and the pen holder 1 is in threaded connection with the pen point 2. The penholder 1 and the pen point 2 are made of metal materials, such as aluminum alloy, and the wall thickness is thin. As shown in figure 1, an inner cavity and an air guide hole 11 which extend along the length direction of the penholder 1 are arranged in the penholder 1, a piston 4 is hermetically and slidably matched in the inner cavity, the inner cavity is divided into an ink storage cavity 12 and an air inlet cavity 13 by the piston 4, the rear end of the air guide hole 11 is communicated with the air inlet cavity 13, and a limiting protrusion 14 is arranged at the rear end of the air inlet cavity 13. The piston 4 is made of rubber or silica gel, and the friction force between the piston 4 and the inner wall of the ink storage cavity 12 is reduced as much as possible while the sealing is ensured.

As shown in FIG. 3, the pen head 2 has a diversion hole 21 and an air inlet hole 22 communicated with the ink storage cavity 12, and after the pen barrel 1 is connected with the pen head 2, the air inlet hole 22 is communicated with the air guide hole 11. The front end of the guide hole 21 extends to the pen hair 3, the side wall of the pen point 2 is provided with a concave cavity 23, the front end of the air inlet hole 22 is communicated with the concave cavity 23, a rebound button 5 for controlling the on-off of the guide hole 21 is arranged in the concave cavity 23, and the pen point 2 is further provided with an air pumping structure for pumping air to the air inlet hole 22 when the guide hole 21 is communicated.

As shown in fig. 1, when the rebound button 5 is not pressed, the ink storage chamber 12 is in a closed state, and ink inside the ink storage chamber does not flow to the brush hair 3 through the diversion hole 21. When ink needs to be conveyed to the brush hair 3, the rebound button 5 is pressed, as shown in fig. 2, the diversion hole 21 is conducted, air is pumped to the air inlet 22 through the air pumping structure, air enters the air inlet cavity 13 through the air guide hole 11, the pressure in the air inlet cavity 13 is increased, the piston 4 is pushed to move forwards along the inner cavity, the ink in the ink storage cavity 12 is pushed forwards, the ink flows to the brush hair 3 through the diversion hole 21, after the appropriate amount of the ink flowing to the brush hair 3 is obtained, the rebound button 5 is released, the diversion hole 21 is closed after the rebound button 5 rebounds, and ink supply to the brush hair 3 is stopped.

As shown in FIG. 3, the pen head 2 is provided with a mounting hole 24 which extends radially and is communicated with the diversion hole 21, the inner end of the mounting hole 24 is provided with a relief hole 25, the diameter of the relief hole 25 is smaller, and the outer end of the relief hole 25 extends to the outer surface of the pen head 2. When the rebound button 5 is pressed, air in the mounting hole 24 can be discharged through the air release hole 25, and the problem that the rebound button 5 cannot be pressed is avoided. As shown in fig. 3, the outer end of the mounting hole 24 is communicated with the cavity 23, the inner end of the mounting hole 24 is provided with a spring 6, the rebound button 5 is hermetically and slidably fitted in the mounting hole 24, the rebound button 5 is provided with a communication hole 51 parallel to the diversion hole 21, the spring 6 acts on the inner end of the rebound button 5, and the communication hole 51 is disconnected from the diversion hole 21 when the rebound button 5 is not pressed.

In order to ensure that the communication hole 51 is parallel to the pilot hole 21, the section of the rebound button 5 is set to be non-circular, such as square, regular hexagon, or the like, so that the rebound button 5 cannot be rotated circumferentially. When ink needs to be conveyed to the brush hair 3, the rebound button 5 is pressed, the rebound button 5 moves towards the inner end of the mounting hole 24, the spring 6 is compressed, the communication hole 51 gradually moves inwards until the communication hole 51 is communicated with the diversion hole 21, and the ink in the ink storage cavity 12 can flow to the brush hair 3 through the diversion hole 21 and the communication hole 51.

After the rebound button 5 is released, the rebound button 5 is moved outward by the compression spring 6, and when the rebound button 5 is returned to the normal state, the communication hole 51 is disconnected from the pilot hole 21. In order to prevent the rebound button 5 from being separated from the mounting hole 24, a limit position can be arranged between the mounting hole 24 and the rebound button 5 so as to limit the moving range of the rebound button 5; or one end of the spring 6 is fixed at the inner end of the mounting hole 24, and the inner end of the rebound button 5 is fixedly connected with the other end of the spring 6.

As shown in fig. 1-3, the pumping structure includes a diaphragm 7 disposed at an opening of the cavity 23 and used for closing the cavity 23, an outer end of the resilient button 5 penetrates through the diaphragm 7 and is fixedly connected to the diaphragm 7 in a sealing manner, a connecting hole 52 is disposed on the resilient button 5, an inner end of the connecting hole is communicated with the cavity 23, and an outer end of the connecting hole 52 is located on an outer end surface of the resilient button 5. When ink needs to be conveyed to the brush hair 3, the rebound button 5 is pressed, meanwhile, the connecting hole 52 is blocked by a thumb, the diaphragm 7 is driven to move into the cavity 23 in the pressing process, gas inside the cavity 23 is compressed, and as shown in fig. 2, when the communication hole 51 is communicated with the flow guide hole 21, the piston 4 is pushed to move forwards to push the ink in the ink storage cavity 12 forwards due to the fact that the air pressure in the air inlet cavity 13 is larger than the pressure in the ink storage cavity 12. After the rebound button 5 is released, the spring 6 enables the rebound button 5 to reset, the rebound button 5 drives the diaphragm 7 to reset, at the moment, outside air can enter the concave cavity 23 through the connecting hole 52, and the piston 4 is effectively prevented from moving after the rebound button 5 is released. By repeating the above operation, an appropriate amount of ink can be made to flow toward the brush bristles 3.

The area of the membrane 7 is approximately equal to the area of the thumb surface, so that the membrane 7 can be completely pressed into the cavity 23, unnecessary deformation of the membrane 7 is avoided, and the reliability of pressure increase in the air inlet cavity 13 is ensured. The membrane 7 is made of rubber or silica gel, has the thickness of 1mm-2mm, is not easy to generate local expansion deformation, and is beneficial to realizing the compression of air.

Example two

The construction principle of the present embodiment is substantially the same as that of the first embodiment except that, as shown in fig. 4, the air pumping structure includes a connection tube 8 connected to the air intake hole 22 and an inflatable air bag 9 connected to the other end of the connection tube 8.

The adapter tube 8 is detachably connected with the air inlet 22, and when the communication hole 51 is disconnected with the diversion hole 21, the adapter tube 8 is not connected with the air inlet 22. When ink needs to be conveyed to the brush hair 3, the connecting pipe 8 is connected with the air inlet hole 22, then the rebound button 5 is pressed, the communication hole 51 is communicated with the flow guide hole 21, then the inflatable air bag 9 is squeezed, air is pumped into the air inlet cavity 13 through the air inlet hole 22 and the air guide hole 11, the pressure in the air inlet cavity 13 is increased, the piston 4 is pushed to move forwards, and the ink in the ink storage cavity 12 is pushed forwards. When the ink flowing to the brush hair 3 is proper, the rebound button 5 is released, and the connecting pipe 8 is disconnected from the air inlet 22.

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 writing brush comprises a pen holder (1), a brush head (2) detachably connected to the front end of the pen holder (1) and brush bristles (3) arranged at the front end of the brush head (2), and is characterized in that the pen holder (1) is internally provided with an inner cavity and an air guide hole (11) extending along the length direction of the pen holder, a piston (4) is hermetically and slidably matched in the inner cavity and divides the inner cavity into an ink storage cavity (12) and an air inlet cavity (13), the rear end of the air guide hole (11) is communicated with the air inlet cavity (13), the brush head (2) is internally provided with a flow guide hole (21) communicated with the ink storage cavity (12) and an air inlet hole (22) communicated with the front end of the air guide hole (11), the front end of the flow guide hole (21) extends to the brush bristles (3), the side wall of the brush head (2) is provided with a concave cavity (23), and the front end of the air inlet hole (22) is communicated with the concave cavity (23), a rebound button (5) used for controlling the on-off of the diversion hole (21) is arranged in the concave cavity (23), and an air pumping structure used for pumping air to the air inlet hole (22) when the diversion hole (21) is communicated is further arranged on the pen point (2).

2. The writing brush according to claim 1, wherein the writing brush head (2) is provided with a mounting hole (24) extending radially and communicating with the guide hole (21), the outer end of the mounting hole (24) is communicated with the cavity (23), the inner end of the mounting hole (24) is provided with a spring (6), the rebounding button (5) is hermetically and slidably fitted in the mounting hole (24), the rebounding button (5) is provided with a communication hole (51) parallel to the guide hole (21), the spring (6) acts on the inner end of the rebounding button (5), and the communication hole (51) is disconnected from the guide hole (21) when the rebounding button (5) is not pressed.

3. The writing brush according to claim 2, wherein the pumping structure comprises a diaphragm (7) arranged at the opening of the cavity (23) and used for closing the cavity (23), the outer end of the resilient button (5) penetrates through the diaphragm (7) and is fixedly connected with the diaphragm (7) in a sealing manner, a connecting hole (52) is formed in the resilient button (5), the inner end of the connecting hole is communicated with the cavity (23), and the outer end of the connecting hole (52) is located on the outer end face of the resilient button (5).

4. The writing brush according to claim 2, wherein the air pumping structure comprises a connection tube (8) connected with the air inlet hole (22) and an air-filled air bag (9) connected to the other end of the connection tube (8).

5. Writing brush according to claim 2 or 3 or 4, characterized in that the inner end of the mounting hole (24) has a relief hole (25), and the outer end of the relief hole (25) extends to the outer surface of the brush head (2).

6. Writing brush according to claim 1 or 2 or 3 or 4, characterized in that the rear end of the air inlet chamber (13) has a limit projection (14).