CN210911769U

CN210911769U - Hydrolysis chalk

Info

Publication number: CN210911769U
Application number: CN201921700576.3U
Authority: CN
Inventors: 梁保勤
Original assignee: Xiangyang Aoshida Digital Technology Co ltd
Current assignee: Xiangyang Aoshida Digital Technology Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-07-03
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a hydrolysis chalk, which comprises a shell and a pen point, wherein the shell is internally provided with a hollow inner cavity, two ends of the inner cavity are opened, a water absorption column is clamped in the inner cavity and is made of high water absorption and elastic materials; one end of the pen point penetrates through the end cover and then is assembled and fixed with the ink guiding block; one end of the water absorption column is closely contacted with the ink guiding block, the inner cavity is positioned at one end of the water absorption column, which is far away from the pen point, and is also axially assembled with a pressing ring in a sealing way, the pressing ring is fixed at one end of the push rod, the other end of the push rod penetrates through a limiting ring and then is fixedly connected with the big end of the push rod, a hollow ink adding channel is arranged in the push rod, and a plurality of annular grooves are axially arranged in the circumferential direction of the push rod; the limiting ring is fixed at one end of the inner cavity, which is far away from the end cover, and is in sealing assembly with the outer wall of the inner cavity, and the push rod and the limiting ring can be axially assembled in a sliding manner; the ink adding channel penetrates through the pressure ring and is communicated with the water absorbing column. The utility model discloses the structure can prevent that liquid ink is too much and cause to reveal, can improve the writing quality simultaneously.

Description

Hydrolysis chalk

Technical Field

The utility model relates to a teaching article especially relates to a chalk of hydrolysising.

Background

The chalk is a very common teaching article at present, and the chalk in the mainstream at present is dry powder chalk, and the price is very low, but the chalk has larger dust during writing, so that the chalk has larger health influence on a user. In contrast, in recent years, a hydrolysis chalk has been introduced, which has a principle similar to that of a marker pen, and mainly uses ink injected into a pen and then is drawn out through a pen point to perform writing. The mode has no dust and long writing time, and is popular with broad teachers. However, the existing hydrolysis chalk is simple in structure and mainly comprises a shell (similar to the shell 110 in fig. 5) with an opening at one end, an end cover (similar to the end cover 150 in fig. 5) and a pen point (similar to the pen point 210 in fig. 5), wherein the end cover seals the opening end of the shell, so that a sealed space for storing ink is formed inside the shell, and the pen point penetrates through the end cover and then is in contact with the ink inside the shell, so that the ink is led out of the pen point for writing. This design, while inexpensive, has the following problems:

1. the end cover and the shell are generally screwed through the sealing threads, and ink leakage at the assembly position of the end cover and the shell is easily caused due to abrasion and the like after the end cover and the shell are disassembled for many times.

2. Since the inner cavity space inside the shell is constant, when the ink is less, the pen point cannot suck the ink once the pen point is slightly inclined upwards, and the pen cannot write, but in practical application, the pen point is basically inclined upwards to write on the blackboard.

3. The nib directly contacts the liquid ink, when the ink is more, the ink easily flows out from the assembly of the nib and the end cover, ink leakage is caused, and even if the ink is not leaked, the writing quality is influenced because the ink is too much in the nib.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects in the prior art, the technical problem to be solved in the present invention is to provide a hydrolysis chalk, which is not easy to leak ink and the pen point can obtain relatively uniform ink output.

In order to achieve the purpose, the utility model provides a hydrolysis chalk, which comprises a shell and a nib, wherein the shell is internally provided with a hollow inner cavity, two ends of the inner cavity are opened, a water absorption column is clamped and installed in the inner cavity, and the water absorption column is made of high water absorption and elastic materials; one end of the pen point penetrates through the end cover and then is assembled and fixed with the ink guiding block;

one end of the water absorption column is tightly contacted with the ink guiding block, the inner cavity is positioned at one end of the water absorption column, which is far away from the pen point, and is also axially assembled with the pressing ring in a sealing way, the pressing ring is fixed at one end of the push rod, the other end of the push rod penetrates out of the limiting ring and is fixedly connected with the big end of the push rod, a hollow ink adding channel is arranged in the push rod, and a plurality of annular grooves are axially arranged in the circumferential direction of the push rod; the limiting ring is fixed at one end of the inner cavity, which is far away from the end cover, and is in sealing assembly with the outer wall of the inner cavity, and the push rod and the limiting ring can be axially assembled in a sliding manner; the ink adding channel penetrates through the pressing ring and is communicated with the water absorbing column.

Preferably, the water absorption column is made of PU water absorption sponge.

Preferably, the end cap is screwed with one end of the inner cavity through sealing threads.

Preferably, the part of the pen point between the ink guiding block and the end part of the end cover is sleeved with a limiting block, the limiting block is used for limiting the maximum displacement of the ink guiding block moving towards the pen point, the limiting block is fixed on the inner wall of the end cover, and the pen point and the limiting block can move axially relatively.

Preferably, the pen cap is sleeved outside the end cover and the pen point.

Preferably, one end of the annular groove, which is close to the compression ring, is a vertical surface, one end of the annular groove, which is close to the large end of the push rod, is an inclined surface, and the distance between the inclined surface and the vertical surface is gradually increased from the closed end to the open end in the diameter direction of the push rod; the ring groove is assembled with the fixture block in a clamping manner, the fixture block, the inclined plane and the vertical plane corresponding surfaces are respectively provided with a matching inclined plane and a stop vertical plane, and the stop vertical plane is attached to the vertical plane; the matching inclined plane is matched with the inclined plane;

the fixture block is fixedly assembled with one end of the lock rod, an accommodating groove is formed in the assembly position of the limiting ring and the lock rod, and the fixture block can be clamped with the accommodating groove and can slide in the diameter direction of the push rod lock rod; the other end of the lock rod penetrates through the accommodating groove, the shell and the switch sliding groove and then is fixedly assembled with the large end of the lock rod, the large end of the lock rod is attached to the switch face, the switch face and the switch sliding groove are respectively arranged on the switch protrusion, the switch protrusion is fixed on the switch cylinder, the switch cylinder is sleeved outside the shell and is assembled with the shell in a circumferential rotating mode, and the auxiliary sliding groove is arranged at the position, corresponding to the switch sliding groove, of the switch cylinder.

Preferably, the distance between one end of the switch surface and the axis of the push rod gradually increases towards the distance between the other end of the switch surface and the axis of the push rod.

Preferably, a pressure spring is sleeved on the part of the lock rod, which is located between the clamping block and the inner wall of the shell.

Preferably, the ink adding channel is positioned at one end of the large end of the push rod and is in sealing assembly with the plugging plug, the plugging plug is provided with a large plugging end, and the large plugging end cannot be installed in the ink adding channel.

The utility model has the advantages that: the utility model discloses simple structure through set up the water absorption post in the inner chamber in order to absorb the ink, can prevent on the one hand that liquid ink is too much and cause to reveal, and on the other hand can carry the ink to the nib relatively evenly through the water absorption post to improve writing quality greatly. Additionally the utility model discloses a set up the push rod, can extrude water absorption column to when the relatively great china ink volume of needs, can obtain through extrusion water absorption column, also can adjust nib play china ink volume in a flexible way, thereby give the user more nimble adjustment space.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a sectional view in the front view direction of the present invention (fig. 1 is true).

Fig. 5 is an enlarged view at F1 in fig. 4.

Fig. 6 is a right side view of the present invention (fig. 1 is a perspective view).

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-6, a piece of hydrolysis chalk comprises a shell 110, an end cover 150, a pen cap 120 and a pen point 210, wherein the shell 110 is internally provided with a hollow inner cavity 111, two ends of the inner cavity are opened, a water absorption column 240 is installed in the inner cavity in a clamping manner, and the water absorption column 240 is made of a high water absorption and elastic material, such as a PU water absorption sponge. The end cap 150 is screwed to one end of the inner cavity 111 through a sealing thread, so that the end cap 150 is hermetically assembled with the inner cavity 111. One end of the pen tip 210 penetrates through the end cover 150 and then is assembled and fixed with the ink guiding block 230, the ink guiding block 230 and the pen tip 210 are both made of materials capable of absorbing ink, and materials used for the pen tip of the existing marker can be directly adopted.

The part of the pen point 210 between the ink guiding block 230 and the end of the end cover 150 is sleeved with a limiting block 220, the limiting block 220 is used for limiting the maximum displacement of the ink guiding block 230 to the pen point, the limiting block 220 is fixed on the inner wall of the end cover 150, and the pen point and the limiting block can move axially relatively.

One end of the water absorption column 240 is in close contact with the ink guide block 230, so that the ink inside the water absorption column can be transferred to the ink guide block 230, and the ink can be ensured to enter the pen point for writing. The cap 120 is sleeved on the end cap 150 and the pen tip 210, so as to protect the pen tip 210.

The inner cavity 111 is positioned at one end of the water absorption column 240 far away from the pen point and is also axially slidably and hermetically assembled with the pressing ring 310, the pressing ring 310 is fixed at one end of the push rod 130, the other end of the push rod 130 penetrates through the limiting ring 160 and then is fixedly connected with the big end 131 of the push rod, a hollow ink adding channel 132 is arranged in the push rod 130, and a plurality of annular grooves 133 are axially arranged in the circumferential direction of the push rod 130; the limiting ring 160 is fixed at one end of the inner cavity 111 far away from the end cover and is in sealing assembly with the outer wall of the inner cavity 111, and the push rod 130 and the limiting ring 160 can be axially assembled in a sliding manner.

The ink adding channel 132 penetrates through the pressing ring 310 and then is communicated with the water absorption column, one end, close to the pressing ring 310, of the annular groove 133 is a vertical surface 1332, one end, close to the large end 131 of the push rod, of the annular groove 133 is an inclined surface 1331, and the distance between the inclined surface 1331 and the vertical surface 1332 is gradually increased from the closed end to the open end in the diameter direction of the push rod 130;

the annular groove 133 is engaged with the latch 350, the latch 350 is provided with a matching inclined plane 351 and a stop vertical plane 352 on the corresponding surfaces of the inclined plane 1331 and the vertical plane 1332, and the stop vertical plane 352 is attached to the vertical plane 1332, so that the push rod 130 is prevented from moving axially towards the push rod big end 131; the engagement slope 351 is engaged with the slope 1331 so as to drive the latch 350 out of the groove to facilitate the movement of the push rod 130 toward the water absorption column 240.

The fixture block 350 is fixedly assembled with one end of the lock rod 340, an accommodating groove 161 is arranged at the assembly position of the limiting ring 160 and the lock rod 340, and the fixture block 350 can be clamped with the accommodating groove 161 and can slide in the diameter direction of the push rod lock rod 340; the other end of the lock rod 340 penetrates through the accommodating groove 161, the outer shell 110 and the switch sliding groove 331 and then is fixedly assembled with the large end 341 of the lock rod, the large end 341 of the lock rod is attached to the switch surface 332, the switch surface 332 and the switch sliding groove 331 are respectively arranged on the switch protrusion 330, the switch protrusion 330 is fixed on the switch cylinder 320, the switch cylinder 320 is sleeved outside the outer shell 110 and is assembled with the outer shell in a circumferential rotation mode, and the auxiliary sliding groove 321 is arranged at the position, corresponding to the switch sliding groove 331, of the switch cylinder 320.

The interval of switch face 332 one end and push rod axis is crescent to the interval of the other end and push rod axis to make switch cylinder 320 circumference rotate, the great end of interval of switch face 332 and push rod axis draws out locking lever 340 axial to keeping away from the push rod direction gradually, namely draws out fixture block 350, and when fixture block 350 pulled out the annular groove, the push rod can be to keeping away from end cover one end and remove. The part of the locking rod 340 between the latch 350 and the inner wall of the housing 110 is sleeved with a pressure spring 360, and the pressure spring 360 is used for applying a pushing force to the latch 350 to move towards the chute, so that the latch 350 is ensured to be clamped and assembled with the annular groove.

When the ink-absorbing pen is used, if the ink output amount of the pen point is small, the push rod can be directly pushed to the water-absorbing column, so that the water-absorbing column is extruded, more ink can be released by the water-absorbing column, and the ink output amount of the pen point is increased. Otherwise, the switch cylinder 320 is rotated and then the push rod is pulled reversely to release the compression of the water absorption column.

Preferably, the ink adding channel 132 is in sealing fit with the blocking plug 140 at one end of the push rod big end 131, the blocking plug 140 is provided with a blocking plug big end 141, and the blocking plug big end 141 cannot be installed in the ink adding channel 132, so that the blocking plug 140 is prevented from completely entering the ink adding channel 132 to block the ink adding channel 132. When ink is added, the plug 140 can be opened, ink is directly added into the inner cavity through the ink adding channel, the ink is directly absorbed by the water absorption column after entering the inner cavity, and finally the plug 140 is plugged. In this embodiment, the blocking plug 140 and the ink filling channel 132 are screwed together by sealing threads.

The details of the present invention are well known to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The hydrolysis chalk comprises a shell and a nib and is characterized in that: the inner part of the shell is a hollow inner cavity, two ends of the inner cavity are opened, a water absorption column is installed in the inner cavity in a clamping mode, and the water absorption column is made of water absorption and elastic materials; one end of the pen point penetrates through the end cover and then is assembled and fixed with the ink guiding block;

2. The hydrolyzed chalk of claim 1, wherein: the water absorption column is made of PU water absorption sponge.

3. The hydrolyzed chalk of claim 1, wherein: the end cover is screwed with one end of the inner cavity through a sealing thread.

4. The hydrolyzed chalk of claim 1, wherein: the nib is located partial overcoat between leading the black piece and the end cover tip and is equipped with the stopper, and the stopper is used for limiting the maximum displacement that leads the black piece to the nib removal, and the stopper is fixed on the end cover inner wall, but relative axial displacement between nib and the stopper.

5. The hydrolyzed chalk of claim 1, wherein: the pen cap is sleeved outside the end cover and the pen point.

6. The hydrolyzed chalk of claim 1, wherein: one end of the annular groove, which is close to the compression ring, is a vertical surface, one end, which is close to the large end of the push rod, is an inclined surface, and the distance between the inclined surface and the vertical surface is gradually increased from the closed end to the open end in the diameter direction of the push rod; the ring groove is assembled with the fixture block in a clamping manner, the fixture block, the inclined plane and the vertical plane corresponding surfaces are respectively provided with a matching inclined plane and a stop vertical plane, and the stop vertical plane is attached to the vertical plane; the matching inclined plane is matched with the inclined plane;

7. The hydrolyzed chalk of claim 6, wherein: the distance between one end of the switch surface and the axis of the push rod is gradually increased towards the distance between the other end of the switch surface and the axis of the push rod.

8. The hydrolyzed chalk of claim 6, wherein: and a pressure spring is sleeved on the part of the lock rod, which is positioned between the clamping block and the inner wall of the shell.

9. The hydrolyzed chalk of claim 1, wherein: the ink adding channel is positioned at one end of the large end of the push rod and is in sealing assembly with the plugging plug, the plugging plug is provided with a large end of the plugging plug, and the large end of the plugging plug cannot be arranged in the ink adding channel.