CN112706549B

CN112706549B - Pen container

Info

Publication number: CN112706549B
Application number: CN202110044356.5A
Authority: CN
Inventors: 刘小渔
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2022-11-29
Anticipated expiration: 2041-01-13
Also published as: CN112706549A

Abstract

The invention relates to the technical field of stationery, and aims to solve the problems that at present, students generally place straight pens of various types and styles in pen containers, but pens of various types and styles are different in length, when the students want to take shorter pens, the pen containers need to be toppled over, all pens in the pen containers are poured out, when the students topple over the pen containers, dust is easy to diffuse into the air, the dust diffused into the air is easy to be sucked into lungs by the students, and the health of the students is influenced.

Description

Pen container

Technical Field

The invention relates to the technical field of stationery, in particular to a pen container.

Background

At present, students generally place various types and styles of straight bars in the pen container directly, and the straight bars are convenient to carry uniformly. However, pens of various types and styles are different in length, when a student needs to take a shorter pen, the pen container needs to be poured over, all pens in the pen container are poured out, the shorter pen is taken, great inconvenience is brought to the student to take the pen, meanwhile, dust is easily deposited in the pen container after the traditional pen container is placed for a long time, when the student pours the pen container, the dust is easily diffused into the air, and the dust diffused into the air is easily sucked into the lungs by the student, so that the health of the student is affected.

Disclosure of Invention

The pen container provided by the invention can eject pens out of the pen container, so that the convenience in use is increased, students cannot be distracted by looking for pens, and the students can learn more attentively.

In order to achieve the above object, the present invention provides the following solutions:

a pen container comprises a pen container, the pen container is a hollow cylinder, a cylindrical pressure barrel is arranged in the center of the pen container along the axial direction of the pen container, the top surface of the pen container is attached to the top end of the pressure barrel, a pen groove is arranged between the side wall of the pen container and the side wall of the pressure barrel, a circular support column is arranged at the attachment position of the top surface of the pen container and the top end of the pressure barrel, the support column is fixedly connected with the inner wall of the top surface of the pen container, an annular bulge is arranged on the outer wall of the pressure barrel, which is close to the top end, a first groove is arranged on the inner wall of the support column, a first piston is arranged on the pressure barrel, an annular disc is arranged on one side, which is close to the bottom end of the pressure barrel, of the first piston, an annular disc is fixedly connected with the inner wall of the pressure barrel, the annular disc is elastically connected with the first piston through a first spring, a second piston is arranged on one side, the second piston is elastically connected with the bottom end of the pressure barrel through a second spring, the side wall of the pressure barrel is provided with an air injection pipe, the side wall of the pressure barrel is provided with a one-way valve, the air inlet of the one-way valve is communicated with the outer space of the pressure barrel, the air outlet of the one-way valve is communicated with the pressure cavity space, a pen groove is arranged in the pen barrel, the edge of the pen groove close to the pressure barrel is fixedly connected with the top of the pen barrel, a popping device is arranged in the pen barrel, an exhaust pipe is arranged in the popping device, the air inlet of one end of the exhaust pipe close to the air injection pipe is attached to the pipe orifice of the air injection pipe far away from the side wall of the pressure barrel, a first air outlet of one end of the exhaust pipe far away from the air injection pipe is communicated with the bottom of the pen groove close to the ground, a third piston is arranged at the bottom of the pen groove close to the ground, the third piston is elastically connected with the bottom of the pen groove through a third spring, an exhaust hole with the diameter of 0.1 mm-0.5 mm is arranged on the pipe body of the exhaust pipe, a second air outlet and a third air outlet are arranged on the exhaust pipe close to the side wall of the second air outlet, a fourth piston is arranged on the exhaust pipe close to the side wall of the second air outlet, the fourth piston is elastically connected with the bent part of the L-shaped pipeline of the exhaust pipe through a fourth spring, the ash blocking plate is arranged at the outlet end of the pen groove, the ash blocking plate is hinged to the edge, close to the side wall of the pen container, of the outlet end of the pen groove, the extending section, hinged to the ash blocking plate, is provided with a warping plate, the side wall of the pen groove and the top surface of the pen container are provided with a circular arc-shaped sliding groove, the inner wall of the sliding groove is attached to the edge of the warping plate, and the sliding groove is connected with a third air outlet space of the exhaust pipe close to one side of the top surface of the pen container.

The principle of the technical scheme of the invention is as follows:

the pressure barrel is arranged in the pen container, gas in the pressure barrel is quickly injected into the exhaust pipe through the gas injection pipe by pressing the first piston of the pressure barrel, and the gas exhausted through the exhaust pipe pushes the third piston to eject the pen out of the pen slot.

The beneficial effect that this scheme produced lies in:

1. be equipped with first spring in the pressure bucket and can make first piston reset, avoid the student still need manual messenger first piston to reset after pressing first piston, increased the convenience.

2. The side wall of the pressure barrel is provided with the one-way valve, so that air can be fed through the one-way valve after being discharged out of the pressure barrel, the problem that the air in the pressure barrel cannot be supplemented after being discharged is solved, and the pressure barrel can be repeatedly used for many times.

3. The pen groove is internally provided with a third spring which can reset the third piston, so that the problem that the third piston cannot reset is solved, and the ejection device can be repeatedly used.

4. The student can make the pen pop out from the pen slot by pressing first piston, has reduced the time of looking for the pen, has increased student's learning efficiency.

5. The student can make the pen pop out from the pen slot by pressing first piston, need not pour the pen in the pen container with whole when the student looks for shorter pen, has reduced the probability that the dust of deposit in the pen container outwards diffuses.

Furthermore, the horizontal direction of the annular protrusion and the contact surface of the first groove are provided with semicircular slide rails, the horizontal direction of the first groove and the contact surface of the annular protrusion are provided with semicircular slide rails, so that the two semicircular slide rails form a circular slide rail, and a first steel ball is arranged in the circular slide rail, so that the friction force between the annular protrusion and the first groove when the pressure barrel rotates is reduced, and the pressure barrel rotates more smoothly.

Further, the exhaust pipe is provided with a second air outlet and a third air outlet, the edge of the second air outlet of the exhaust pipe is connected with the side wall of the pen groove, a fourth piston is arranged at one end, close to the second air outlet, of the exhaust pipe, the fourth piston is elastically connected with the bent portion of the L-shaped pipeline of the exhaust pipe through a fourth spring, the end, close to the pen groove, of the exhaust pipe is provided with an ash blocking plate, the ash blocking plate is hinged to the edge, close to the side wall of the pen groove, of the pen container side wall, the extending section, hinged to the ash blocking plate, is provided with a warping plate, the side wall of the pen groove and the top surface of the pen container are provided with arc-shaped sliding grooves, the inner walls of the sliding grooves are attached to the edges of the warping plate, one side, close to the top surface of the pen container, is connected with the third air outlet of the exhaust pipe in space, the ash blocking plate can be automatically opened and closed, convenience of students can be improved when the pen container is used by the students, dust in the air can not be deposited in the condition that the air is forgotten to operate the ash blocking plate, the pen groove, the side wall of the pen container, the pen can be fixed on the inner side wall of the pen groove, and the pen can be prevented from being directly connected and ejected out.

Furthermore, first piston top surface is equipped with triangular's indicator piece, indicator piece one end is along the directional groove of a pen of first piston radial direction, the indicator piece with connecting wire perpendicular to ground between the jet-propelled pipe makes the directional groove of a pen of indicator piece pop out the pen, makes things convenient for the student to use.

Furthermore, a gap is formed between the side face of the annular protrusion in the vertical direction and the side face of the first groove in the vertical direction, the side face of the first groove is of a tooth-shaped structure, a second groove is formed in the side face of the annular protrusion, a stop block is arranged in the groove, one end, close to the side face of the first groove, of the stop block is of a wedge-shaped structure, the stop block is elastically connected with the bottom of the second groove through a fifth spring, the rotating angle of the pressure barrel is fixed, and the pressure barrel is convenient for students to use.

Furthermore, a third groove is formed in the bottom of the pen container, and a conical sucker is arranged in the third groove to fix the pen container on a desktop, so that the pen container is convenient for students to use.

Drawings

Fig. 1 is a schematic cross-sectional view of embodiment 1 of the present invention.

Fig. 2 is an enlarged schematic view of part B of fig. 1.

Fig. 3 isbase:Sub>A schematic sectional view taken along the linebase:Sub>A-base:Sub>A in fig. 1.

Fig. 4 is a schematic top view of embodiment 1 of the present invention.

Detailed Description

Reference numerals in the drawings of the specification include: the pen container comprises a pen container 1, a pressure barrel 2, a pen groove 3, a first piston 51, a second piston 52, a third piston 53, a fourth piston 54, an annular disc 6, a first spring 71, a second spring 72, a third spring 73, a fourth spring 74, a fifth spring 75, a sixth spring 76, a pressure chamber 8, an air injection pipe 9, a one-way valve 10, a first rubber ring 111, a second rubber ring 112, an exhaust pipe 12, an exhaust hole 13, an ash baffle 14, a warping plate 15, a sliding groove 16, a support column 17, a first steel ball 18, a stop block 19, an indicator piece 20, a suction cup 21, a second steel ball 22, a first clamping groove 231 and a second clamping groove 232.

Example 1:

the embodiment is basically as shown in the attached figures 1-4:

a pen container 1 is shown in attached figures 1-4 and comprises a pen container 1, wherein the pen container 1 is a hollow cylinder, a cylindrical pressure barrel 2 is arranged in the center of the pen container 1 along the axial direction of the pen container 1, the top surface of the pen container 1 is attached to the top end of the pressure barrel 2, the pressure barrel 2 is communicated with the outer space of the pen container 1, a pen groove 3 is formed between the side wall of the pen container 1 and the side wall of the pressure barrel 2, an annular bulge is arranged on the outer wall of the pressure barrel 2 close to the top end, an annular support column 17 is arranged at the attachment position of the top surface of the pen container 1 and the top end of the pressure barrel 2, the support column 17 is fixedly connected with the inner wall of the top surface of the pen container 1, a first groove is formed in the inner wall of the support column 17, the annular bulge on the outer wall of the pressure barrel 2 can be embedded into the first groove, a sliding rail with a semicircular cross section is arranged on the contact surface of the annular bulge close to the ground, a sliding rail with a semicircular cross section is arranged on the first groove, and a circular sliding rail is formed by two semicircular sliding rails, and a first steel ball 18 is arranged in the sliding rail, so that the pressure barrel 2 can rotate along the axis of the pen container 1.

As shown in fig. 3, a gap is formed between the outer side wall of the annular protrusion and the inner side wall of the first groove, the inner side wall of the first groove is of a tooth-shaped structure, the outer side wall of the annular protrusion is provided with a second groove, a stop 19 is arranged in the groove, one end, close to the side surface of the first groove, of the stop 19 is of a wedge-shaped structure, the stop 19 is meshed with the side surface of the first groove, the stop 19 is elastically connected with the bottom of the second groove through a fifth spring 75, and after the pressure barrel 2 is loosened when the rotation angle of the pressure barrel 2 is 40-50 degrees, the stop 19 can limit the rotation angle of the pressure barrel 2 to 45 degrees.

As shown in fig. 1 to 4, a first piston 51 is disposed on the inner wall of the pressure barrel 2 near the top end, an annular disc 6 is disposed on one side of the first piston 51 near the bottom end of the pressure barrel 2, the edge of the annular disc 6 is fixedly connected to the inner wall of the pressure barrel 2, and the annular disc 6 is elastically connected to the first piston 51 through a first spring 71, so that the first piston 51 is reset due to the action force of the first spring 71 after moving to the bottom end of the pressure barrel 2 under pressure. The annular disc 6 is provided with a second piston 52 on one side close to the bottom end of the pressure barrel 2, so that a pressure chamber 8 is formed between the first piston 51 and the second piston 52, when the first piston 51 is pressed towards the bottom end of the pressure barrel 2, the pressure in the pressure chamber 8 is increased, the side surface of the second piston 52, which is contacted with the inner wall of the pressure barrel 2, is provided with a third groove, a second steel ball 22 is arranged in the third groove, so that the second steel ball 22 can slide in the third groove, the second steel ball 22 is connected with the bottom of the third groove through a sixth spring 76, the side wall of the pressure barrel is provided with a first clamping groove 231 with a semicircular cross section, so that the second steel ball 22 is embedded into the first clamping groove 231 under the thrust of the sixth spring 76, when the pressure in the pressure chamber 8 is increased, the second piston 52 can rapidly move towards the bottom end of the pressure barrel 2, the second piston 52 is elastically connected with the bottom end of the pressure barrel 2 through a second spring 72, and the piston can automatically reset after the pressure chamber 8 is not pressed by the pressure. The lateral wall of second piston 52 and pressure vessel 2 contact is equipped with gas ejector tube 9, second piston 52 makes pressure chamber 8 and gas ejector tube 9 space intercommunication when to pressure vessel 2 bottom, the gas that receives the compression in the pressure chamber 8 at this moment discharges from gas ejector tube 9 rapidly, the inner wall that pressure vessel 2 is close to the bottom is equipped with the second draw-in groove 232 that the cross section is semicircular, make second piston 52 can imbed second steel ball 22 in second draw-in groove 232 after moving to pressure vessel 2 bottom, make the gas in the pressure chamber 8 discharge to the inside in-process second piston 9 of gas ejector tube 9 and postpone and reset, after atmospheric pressure in the pressure chamber 8 and the gas ejector tube 9 in being close the ordinary pressure, make second piston 9 reset under the effect of second spring 72.

The side wall of the pressure barrel 2 at the position of the pressure cavity 8 is provided with the one-way valve 10, the air inlet of the one-way valve 10 is communicated with the external space of the pressure barrel 2, and the air outlet of the one-way valve 10 is communicated with the space of the pressure cavity 8, so that after the air in the pressure cavity 8 is sprayed out from the air spraying pipe 9, the air in the external space of the pressure barrel 2 is sucked into the pressure cavity 8 through the one-way valve 10 due to the reset force of the first piston 51 and the second piston 52, and the air in the pressure cavity 8 is supplemented.

The edge of the pen groove 3 close to the pressure barrel 2 is fixedly connected with the top of the pen container 1, so that pens can be inserted into the pen groove 3 from the top of the pen container 1. The pen container 1 is internally provided with a pop-up device, the pop-up device is provided with an exhaust pipe 12 in the pen container 1, the exhaust pipe 12 is provided with an air inlet, a first air outlet, a second air outlet and a third air outlet, the edge of the first air outlet of the exhaust pipe is fixedly connected with the bottom of the pen groove 3 close to the ground, the inner space of the exhaust pipe 12 is communicated with the inner wall space of the pen groove 3, meanwhile, the exhaust pipe 12 is fixed in position, the edge of the air inlet of the exhaust pipe 12 is fixedly connected with a second rubber ring 112, the air jet pipe 9 is far away from the first rubber ring 111 of the air jet port edge of the pressure barrel 2, the second rubber ring 112 is attached to the first rubber ring 111, the inner space of the air jet pipe 9 is communicated with the inner space of the exhaust pipe 12, and meanwhile, air can not leak from the joint of the air jet pipe 9 and the exhaust pipe 12. The bottom of the pen groove 3 close to the ground is provided with a third piston 53, the third piston 53 is elastically connected with the bottom of the pen groove 3 through a third spring 73, so that air can be blown up quickly after entering the bottom of the pen groove 3 through a first air outlet of the exhaust pipe 12, pens in the pen groove 3 are ejected out of the outlet end of the pen groove 3 towards the top of the pen container 1, the pipe body of the exhaust pipe 12 is provided with an exhaust hole 13 with the diameter of 0.3mm, air in the exhaust pipe 12 is slowly exhausted through the exhaust hole 13, and when the air in the exhaust pipe 12 is slowly exhausted through the exhaust hole 13, the third piston 53 is slowly reset under the tension of the third spring 73. The edge of the second air outlet of the exhaust pipe 12 is connected with the side wall of the pen groove 3, so that the inner space of the exhaust pipe 12 close to the second air outlet is communicated with the inner space of the pen groove 3, the exhaust pipe 12 close to the second air outlet is an L-shaped pipeline, one end of the exhaust pipe 12 close to the second air outlet is provided with a fourth piston 54, so that the fourth piston 54 can move towards the axis of the pen container 1 along the radial direction of the pen container 1, the fourth piston 54 is elastically connected with the bent part of the L-shaped pipeline of the exhaust pipe 12 through a fourth spring 74, and when air in the exhaust pipe 12 is slowly exhausted through the exhaust hole 13, the fourth piston 54 is slowly reset under the pulling force of the fourth spring 74. An ash baffle 14 is arranged at the outlet end of the pen groove 3, the edge of the ash baffle 14 is attached to the inner wall of the pen groove 3, the ash baffle 14 is hinged to the edge of the outlet end of the pen groove 3, which is close to the side wall of the pen container 1, one end, which is far away from the hinged part, of the ash baffle 14 is an arc-shaped edge, the ash baffle 14 can move towards the outlet end, which is far away from the pen groove 3, a rocker 15 is arranged at the hinged extension section of the ash baffle 14, the rocker 15 and the ash baffle 14 can do lever motion by taking the hinged part as a fulcrum, an arc-shaped sliding chute 16 is arranged between the side wall of the pen groove 3 and the top surface of the pen container 1, the inner wall of the sliding chute 16 is attached to the edge of the rocker 15, the cross section of the rocker 15 is triangular, the rocker 15 and the top surface of the pen container 1 form a conical space, a third air outlet of the conical space is communicated, air can be injected into the conical space through the third air outlet, the rocker 15 moves towards the side wall of the pen groove 3 after the conical space is injected into the conical space, the exhaust hole 15 drives the ash baffle to be far away from the top surface of the rocker 15, so that the inner space of the pen groove 3 is communicated with the outer space of the pen container 1, the inner space, the ash baffle 14 can not be reset slowly reset by the gravity, and the gravity of the ash baffle 14 in the reset process, and the reset of the ash baffle 14, and the reset of the pen container 14 in the reset process of the pen container 14.

The ejection device and the pen groove 3 are 1 pen storage combination, 5 pen storage combinations are arranged in the pen container 1, the first pen storage combination and the second pen storage combination form a 45-degree included angle with a connecting line of the center of the pen container 1, the second pen storage combination and the third pen storage combination form a 45-degree included angle with a connecting line of the center of the pen container 1, the third pen storage combination and the fourth pen storage combination form a 45-degree included angle with a connecting line of the center of the pen container 1, and the fourth pen storage combination and the fifth pen storage combination form a 45-degree included angle with a connecting line of the center of the pen container 1. The top surface of the first piston 51 is provided with a triangular indicating sheet 20, one end of the indicating sheet 20 points to a first pen storage combination along the radial direction of the first piston 51, a connecting line between the indicating sheet 20 and the air injection pipe 9 is perpendicular to the ground, so that after the pressure barrel 2 rotates for 45 degrees, one end of the indicating sheet 20 points to a second pen storage combination, at the moment, a first rubber ring 111 of the air injection pipe 9 is attached to a second rubber ring 112 on the exhaust pipe 12 of the second pen storage combination, and so on, when one end of the indicating sheet 20 points to an Nth pen storage combination, the first rubber ring 111 of the air injection pipe 9 can be attached to a second rubber ring 112 on the exhaust pipe 12 of the Nth pen storage combination.

The bottom of the pen container 1 is provided with a third groove, a conical sucking disc 21 is arranged in the third groove, when the bottom of the pen container 1 moves towards the ground, air in the sucking disc 21 can be discharged out of the pen container 1, the pen container 1 is fixed on the ground, and the edge of the bottom of the pen container 1 is attached to the ground.

The specific implementation process is as follows:

the student places the pen container 1 on the desktop firstly, and the student pushes down the pen container 1 to make the pen container 1 fix on the desktop, and the student rotates pressure bucket 2 and makes indicator 20 point to the pen slot 3 of wanting to deposit the pen, and the student pushes down first piston 51 and makes the hawk 14 perk, can put into the pen slot 3 with the pen this moment, and the hawk 14 automatic re-setting after gaseous through exhaust hole 13 discharge, can place the pen container 1 for a long time this moment, and the dust in the air can only deposit on the pen container 1 top surface, is convenient for the student to the clearance of pen container 1.

When a student needs to use a pen, the pressure barrel 2 can be rotated to enable the indicating sheet 20 to point to a pen slot 3 for storing the pen to be used, the first rubber ring 111 arranged on the air injection pipe 9 is attached to the second rubber ring 112 on the exhaust pipe 12, the student presses the first piston 51 to enable air to be injected into the exhaust pipe 12, the ash baffle 14 tilts, the third piston 53 tilts and the fourth piston 54 pops out at the moment, the ash baffle 14 tilts synchronously while the pen is bounced by the third piston 53, the popped pen is fixed by the fourth piston 54 at the same time, the pen is prevented from directly flying out of the pen container 1, the student can continue to learn after drawing the needed pen, the air in the exhaust pipe 12 is slowly discharged through the exhaust hole 13, and the ash baffle 14, the third piston 53 and the fourth piston 54 are reset.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A pen container comprises a pen container body and is characterized in that: the pen container is a hollow cylinder, a cylindrical pressure barrel is arranged in the center of the pen container along the axial direction of the pen container, the top surface of the pen container is attached to the top end of the pressure barrel, a pen groove is arranged between the side wall of the pen container and the side wall of the pressure barrel, an annular support column is arranged at the attachment position of the top surface of the pen container and the top end of the pressure barrel, the support column is fixedly connected with the inner wall of the top surface of the pen container, an annular bulge is arranged on the outer wall of the pressure barrel close to the top end, a first groove is arranged on the inner wall of the support column, a first piston is arranged on the inner wall of the pressure barrel close to the top end, an annular disc is arranged on one side of the first piston close to the bottom end of the pressure barrel, the edge of the annular disc is fixedly connected with the inner wall of the pressure barrel, the annular disc is elastically connected with the first piston through a first spring, a second piston is arranged on one side of the annular disc close to the bottom end of the pressure barrel, the second piston is elastically connected with the bottom end of the pressure barrel through a second spring, an air injection pipe is arranged on the side wall of the pressure barrel, and a one-way valve is arranged on the side wall of the pressure barrel, the air inlet of the one-way valve is communicated with the outer space of the pressure barrel, the air outlet of the one-way valve is communicated with the pressure cavity space, a pen groove is arranged in the pen barrel, the edge of the pen groove close to the pressure barrel is fixedly connected with the top of the pen barrel, a popping device is arranged in the pen barrel, an exhaust pipe is arranged in the popping device, the air inlet of one end of the exhaust pipe close to the air injection pipe is attached to the pipe orifice of the air injection pipe far away from the side wall of the pressure barrel, a first air outlet of one end of the exhaust pipe far away from the air injection pipe is communicated with the bottom of the pen groove close to the ground, a third piston is arranged at the bottom of the pen groove close to the ground, the third piston is elastically connected with the bottom of the pen groove through a third spring, an exhaust hole with the diameter of 0.1 mm-0.5 mm is arranged on the pipe body of the exhaust pipe, a second air outlet and a third air outlet are arranged on the exhaust pipe close to the side wall of the second air outlet, a fourth piston is arranged on the exhaust pipe close to the side wall of the second air outlet, the fourth piston is elastically connected with the bent part of the L-shaped pipeline of the exhaust pipe through a fourth spring, the ash blocking plate is arranged at the outlet end of the pen groove, the ash blocking plate is hinged to the edge, close to the side wall of the pen container, of the outlet end of the pen groove, the extending section, hinged to the ash blocking plate, is provided with a warping plate, the side wall of the pen groove and the top surface of the pen container are provided with a circular arc-shaped sliding groove, the inner wall of the sliding groove is attached to the edge of the warping plate, and the sliding groove is connected with a third air outlet space of the exhaust pipe close to one side of the top surface of the pen container.

2. A pen container according to claim 1, characterized in that: the contact surface between the horizontal direction of the annular protrusion and the first groove is provided with a semicircular slide rail, the contact surface between the horizontal direction of the first groove and the annular protrusion is provided with a semicircular slide rail, so that the two semicircular slide rails form a circular slide rail, and a first steel ball is arranged in the circular slide rail.

3. The pen container according to claim 1, characterized in that: the top surface of the first piston is provided with a triangular indicating sheet, one end of the indicating sheet points to the pen slot along the radial direction of the first piston, and a connecting line between the indicating sheet and the air injection pipe is perpendicular to the ground.

4. A pen container according to claim 1, characterized in that: a gap is formed between the side face of the annular protrusion in the vertical direction and the side face of the first groove in the vertical direction, the side face of the first groove is of a tooth-shaped structure, a second groove is formed in the side face of the annular protrusion, a stop block is arranged in the second groove, one end, close to the side face of the first groove, of the stop block is of a wedge-shaped structure, and the stop block is elastically connected with the bottom of the second groove through a fifth spring.

5. The pen container according to claim 1, characterized in that: the bottom of the pen container is provided with a third groove, and a conical sucker is arranged in the third groove.