阅读说明：本技术 一种揿帽防脱结构及笔 (Cap anti-disengaging structure and pen ) 是由 徐瀚奇 于 2021-03-08 设计创作，主要内容包括：本发明涉及一种揿帽防脱结构,包括：顶端侧壁带有挂钩的安装槽的笔杆、两侧对称开设有腰形孔的揿帽以及挂钩,挂钩的固定端穿过揿帽上的两个腰形孔后过盈插接在安装槽内。本发明还涉及一种使用揿帽防脱结构的笔。使用这种笔可有效防止儿童发生误吞揿帽的事件发生。(The invention relates to a press cap anti-drop structure, comprising: the pen holder with the mounting groove for the hook on the side wall at the top end, the snap cap with the waist-shaped holes symmetrically formed in two sides and the hook are arranged, and the fixed end of the hook penetrates through the two waist-shaped holes in the snap cap and then is inserted into the mounting groove in an interference manner. The invention also relates to a pen using the snap cap anti-disengaging structure. The pen can effectively prevent the occurrence of the event that the child mistakenly swallows the snap cap.)

1. A snap cap anti-disengaging structure is characterized by at least comprising:

the pen holder (1), the side wall of the top end of the pen holder (1) is provided with an installation groove (11) of the hook (3), and the installation groove (11) is vertically arranged;

the two sides of the press cap (2) are symmetrically provided with waist-shaped holes (21);

a hook (3), the fixed end (31) of the hook (3) passes through the two waist-shaped holes (21) on the snap cap (2) and then is inserted in the mounting groove (11) in an interference manner.

2. The snap cap separation prevention structure according to claim 1, wherein: the pen holder is characterized in that a fixing groove (12) is further formed in the pen holder (1), the fixing groove (12) is opposite to the mounting groove (11), and a center connecting line between the fixing groove and the mounting groove passes through the circle center of the cross section of the pen holder (1).

3. The snap cap separation prevention structure according to claim 1, wherein: the mounting groove (11) is a semi-closed spherical groove or a semi-closed cylindrical groove.

4. The snap cap separation prevention structure according to claim 2, wherein: the bottom of the fixing groove (12) is a hemispherical groove.

5. The snap cap separation preventing structure according to claim 1 or 2, wherein: the fixing end (31) of the hook (3) is provided with a barb (311), and the barb (311) is extruded and keeps tending to open in the process of inserting the fixing end (31) of the hook (3) into the installation groove (11) and after the insertion is finished.

6. The snap cap release preventing structure according to claim 5, wherein: be provided with fixture block (111) on the lateral wall of mounting groove (11), the in-process of mounting groove (11) is pegged graft into in stiff end (31) of couple (3), and fixture block (111) extrusion barb (311) to after the installation of couple (3) targets in place, barb (311) offset with fixture block (111) lower extreme.

7. A pen comprising the snap cap coming-off prevention structure of claim 5, wherein: the pen core jumping mechanism comprises a rotating wheel (6) with the bottom end butted with the top of the pen core (5), a pressing wheel (7) with the bottom end butted with the rotating wheel (6) and the top end connected with the pressing cap (2), and a spring (8) sleeved at the lower part of the pen core (5); the upper end of the spring (8) is abutted against the pen core (5), and the lower end of the spring (8) is abutted against the inner wall of the furled part at the lower end of the pen holder (1); the outer side of the lower end of the pressing wheel (7) is provided with a plurality of convex parts (71), the outer side of the upper end of the rotating wheel (6) is provided with a plurality of tooth parts (61), a gap (62) for the convex parts (71) to penetrate through is formed between the adjacent tooth parts (61), and the lower end face of each convex part (71) is provided with a bevel (711) which is meshed with the upper end face of the corresponding tooth part (61) and is used for driving the rotating wheel (6) to rotate in the circumferential direction.

Technical Field

The invention belongs to the technical field of pen making, and particularly relates to a snap cap anti-disengaging structure and a pen.

Background

Because children are different in growth stages, children particularly like to plug articles into mouths in a certain specific stage, particularly in the long tooth stage, when the children write by using a ball pen or a gel pen, the children often bite the snap cap part at the mouth, and when the children are carelessly or are threatened by external fright, collided or flapped, the children are easy to eat by mistake carelessness or swallow the snap cap, so that the accidental accidents of suffocation and death are caused. Therefore, in order to prevent children from suffocating when eating the snap cap by mistake and rescue time, some pen manufacturing enterprises design through holes on the snap cap. When children mistakenly swallow the press cap to be clamped in the throat, the air channel is still left in the throat due to the through holes in the press cap, and the time for rescuing the children is prolonged.

However, with the life saving hole, a new problem arises. Firstly, dust is easy to accumulate in the pen, and the ink consumption speed is accelerated; secondly, compared with the snap caps without the rescue holes, the snap caps with the rescue holes have obviously reduced anti-extrusion strength, and children are easy to damage and hurt the throat when mistakenly swallowed and clamped in the throat; thirdly, the life-saving hole arranged on the snap cap can not avoid the situation that the child swallows the life-saving cap by mistake and can not reduce the probability that the child swallows the life-saving cap by mistake.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a snap cap separation preventing structure which can effectively prevent a snap cap from being separated, thereby preventing children from eating it by mistake, and a pen using the same.

A snap cap separation prevention structure at least comprises:

the side wall of the top end of the pen holder is provided with an installation groove of the hook, and the installation groove is vertically formed;

the two sides of the press cap are symmetrically provided with waist-shaped holes;

and the fixed end of the hook penetrates through the two waist-shaped holes on the snap cap and then is inserted in the mounting groove in an interference manner.

The fixed end of the hook penetrates through the two waist-shaped holes on the snap cap and then is inserted into the mounting groove in a downward interference manner, and the barb is extruded and keeps tending to open in the process and after the insertion is finished. The hole on the snap cap is a waist-shaped hole, so that after the installation is finished, the snap cap can still move up and down within a certain range, the function of the snap cap is not affected, and when the snap cap needs to be taken down, the lower end of the waist-shaped hole can be abutted against the hook, so that the snap cap cannot be taken down.

Preferably, the penholder is further provided with a fixing groove, the fixing groove and the mounting groove are arranged oppositely, and a central connecting line between the fixing groove and the mounting groove passes through the circle center of the cross section of the penholder. Through setting up fixed slot and mounting groove, the both sides of couple are restricted by fixed slot and mounting groove respectively, prevent effectively that the couple from taking place circumferential direction.

Preferably, the mounting groove is a semi-closed spherical groove or a semi-closed cylindrical groove.

Preferably, the bottom of the fixing groove is a hemispherical groove.

The hemisphere slot setting of the bottom of mounting groove and fixed slot can match the couple surface that the steel wire buckled the constitution for contact surface is bigger between the two, improves the stability between the two.

Preferably, the fixed end of couple is provided with the barb, inserts the in-process of inserting into the mounting groove at the fixed end of couple and inserts the back barb that finishes and be extruded and keep tending towards the trend of opening.

Preferably, be provided with the fixture block on the lateral wall of mounting groove, the in-process of inserting into the mounting groove is inserted to the stiff end of couple, and fixture block extrusion barb to after the installation of couple targets in place, the barb offsets with the fixture block lower extreme.

The pen comprises the snap cap anti-disengaging structure, a jumping mechanism and a pen core, wherein the jumping mechanism comprises a rotating wheel, the bottom end of the rotating wheel is abutted against the top of the pen core, a snap wheel, the bottom end of the snap wheel is abutted against the rotating wheel, the top end of the snap wheel is connected with the snap cap, and a spring, the spring is sleeved at the lower part of the pen core; the upper end of the spring is abutted against the refill, and the lower end of the spring is abutted against the inner wall of the furled part at the lower end of the pen holder; the outer side of the lower end of the pressing wheel is provided with a plurality of convex parts, the outer side of the upper end of the rotating wheel is provided with a plurality of tooth parts, a gap for the convex parts to pass through is formed between the adjacent tooth parts, and the lower end surfaces of the convex parts form inclined planes which are meshed with the upper end surfaces of the tooth parts and used for driving the rotating wheel to rotate in the circumferential direction.

In order to achieve the purpose, the invention adopts the following technical scheme:

compared with the prior art, the invention has the beneficial effects that:

1. the press cap anti-disengaging structure is arranged, the fixed end of the hook penetrates through the two waist-shaped holes on the press cap and then is inserted into the mounting groove in a downward interference mode, and the barb is extruded and keeps tending to open in the process and after the insertion is finished. The hole on the snap cap is a waist-shaped hole, so that after the installation is finished, the snap cap can still move up and down within a certain range, the function of the snap cap is not affected, and when the snap cap needs to be taken down, the lower end of the waist-shaped hole can be abutted against the hook, so that the snap cap cannot be taken down.

2. Through setting up fixed slot and mounting groove, the both sides of couple are restricted by fixed slot and mounting groove respectively, prevent effectively that the couple from taking place circumferential direction.

3. The hemisphere slot setting of the bottom of mounting groove and fixed slot can match the couple surface that the steel wire buckled the constitution for contact surface is bigger between the two, improves the stability between the two.

Drawings

Fig. 1 is a schematic view of a snap cap anti-dropping structure and a pen.

Fig. 2 is a cross-sectional view of the pen.

Fig. 3 is a partially enlarged view of fig. 2 at a in embodiment 1.

Fig. 4 is a schematic view of the structure of the snap cap.

Fig. 5 is a schematic view of the hook structure.

Fig. 6 is a structural schematic view of a cartridge.

FIG. 7 is a schematic view of the construction of the thumb wheel and jog wheel.

Fig. 8 is a partially enlarged view of fig. 2 at a in embodiment 2.

Detailed Description

The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.

Example 1: (FIGS. 1 to 7 are drawings of the present embodiment)

As shown in fig. 1, the snap cap anti-drop structure comprises: a penholder 1, a press cap 2 and a hook 3.

The structure of the cartridge 1 is shown in fig. 6. The top of pen-holder 1 is vertical to be seted up mounting groove 11 and fixed slot 12, and fixed slot 12 sets up with mounting groove 11 relatively, and the centre of a circle of the cross section of pen-holder 1 is passed through to the central line between the two. The mounting groove 11 is a semi-closed spherical groove or a semi-closed cylindrical groove (preferably a semi-closed cylindrical groove) and is formed on the inner wall of the top end of the pen holder 1. The bottom of the fixing groove 12 is a hemispherical groove.

The snap cap 2 is constructed as shown in figure 4. Waist-shaped holes 21 are symmetrically formed in the two sides of the snap cap 2, and the connecting line of the central points of the two waist-shaped holes 21 passes through the circle center of the cross section of the snap cap 2.

The structure of the hook 3 is shown in fig. 5. The hook 3 is formed by bending a stainless steel wire and comprises a horizontal connecting part 32, a vertically arranged fixed end 31 and a hook part 33 designed in an arc shape. One end of the connecting portion 32 is connected to the fixing end 31, and the other end of the connecting portion 32 is connected to the hook portion 33. A hanger 34 having a smooth outer surface is provided at the lower end of the hook portion 33, and the hanger 34 is preferably a plastic ball. By providing the hanger 34, possible damage to a person by the sharp portion of the hook portion 33 is avoided. A barb 311 is provided at the lower end of the fixed end 31, and the barb 311 cannot be disposed inside the fixed end 31 and thus cannot be in contact with the inner wall of the seating groove 12, and it is preferable that the barb 311 is disposed outside the lower end of the fixed end 31. The barb 311 is formed by cutting at the lower end of the fixed end 31.

The installation process of the snap-on cap anti-disengaging structure is as follows: the fixed end 31 of the hook 3 passes through the two waist-shaped holes 21 on the snap cap 2 and then is inserted into the mounting groove 11 in an interference manner. The barb 311 is pressed and maintains a tendency to open during the insertion of the fixed end 31 of the hook 3 into the installation groove 11 and after the insertion. Because the hole on the snap cap 2 is the waist-shaped hole 21, after the installation is finished, the snap cap 2 can still move up and down in a certain range, when the snap cap 2 moves to the lowest end, the upper end of the waist-shaped hole 21 is abutted against the connecting part 32 of the hook 3; when the snap cap 2 is moved to the highest end, the lower end of the waist-shaped hole 21 is abutted against the connection part 32 of the hook 3, and thus the snap cap 2 cannot be removed.

Furthermore, the outer surface of the snap cap 2 is cylindrical, and the outer surface is smooth and is not easy to bear force. This arrangement makes the coefficient of surface friction of the snap cap 2 small, and it becomes very difficult to construct the snap cap retaining structure by the snap cap 2. And if the snap cap 2 is to be removed by the hook 3, it is certainly realized by the hook part 33 of the hook 3. In the process of taking down the press cap 2 through the hook part 33, the hook 3 is acted by the rotating force and slightly rotates by taking the lower end of the fixed end 31 of the hook 3 as a rotating point; or the lower end of the fixed end 31 of the hook 3 is used as a rotation point to rotate, the friction force between the hook 3 and the inner wall of the mounting groove 11 becomes larger, and the snap cap 2 can not be taken down by manpower.

The pen shown in fig. 1-2 and 7 comprises a snap cap anti-drop structure composed of a pen holder 1, a snap cap 2 and a hook 3, and further comprises a jumping mechanism and a pen core 5. The jumping mechanism comprises a rotating wheel 6, a pressing wheel 7, a spring 8 and a connecting piece 9. The bottom end of the rotating wheel 6 is abutted against the top of the pen core 5; the connecting piece 9 is sleeved on the upper part of the pressing wheel 7; the bottom end of the pressing wheel 7 is abutted against the turning wheel 6, and the top end of the pressing wheel 7 is connected with the connecting piece 9. The spring 8 is sleeved at the lower part of the refill 5, the upper end of the spring 8 is abutted to the refill 5, and the lower end of the spring 8 is abutted to the inner wall of the furled part at the lower end of the pen holder 1.

As shown in fig. 7, a plurality of convex portions 71 are provided on the outer side of the lower end of the knock roller 7, a plurality of tooth portions 61 are provided on the outer side of the upper end of the rotor 6, a gap 62 through which the convex portions 71 pass is formed between adjacent tooth portions 61, and a slope 711 which abuts against the upper end surface of the tooth portion 61 and drives the rotor 6 to rotate in the circumferential direction is formed on the lower end surface of the convex portion 71. When the pressing cap 2 pushes the connecting piece 9 to move up and down axially, the pressing wheel 7 drives the rotating wheel 6 to rotate circumferentially, the pen core 5 is driven to rotate circumferentially and simultaneously realize axial expansion and contraction under the condition that the gap 62 exists, and the spring 8 provides restoring force in the process of 3. The above structure is prior art and is not described in detail.

Further, the pen holder 1 is integrally formed and comprises a pen body, a pen point and the like which are integrally injection-molded. The pen is matched with structures such as a snap cap anti-disengaging structure, and any part forming the pen is difficult to take down after being installed. Therefore, the mistake swallowing event of the child in the pen using process can be avoided.

Example 2: (FIGS. 1 to 2, 4 to 8 are drawings of the present embodiment)

As shown in fig. 1, the snap cap anti-drop structure comprises: a penholder 1, a press cap 2 and a hook 3.

The structure of the cartridge 1 is shown in fig. 6. The top of pen-holder 1 is vertical to be seted up mounting groove 11 and fixed slot 12, and fixed slot 12 sets up with mounting groove 11 relatively, and the centre of a circle of the cross section of pen-holder 1 is passed through to the central line between the two. The mounting groove 11 is a semi-closed spherical groove or a semi-closed cylindrical groove (preferably a semi-closed cylindrical groove) and is formed on the inner wall of the top end of the pen holder 1. The bottom of the fixing groove 12 is a hemispherical groove. As shown in fig. 8, a latch 111 is provided on a side wall of the mounting groove 11, and preferably, the latch 111 is integrally injection-molded with the barrel 1 and completely surrounds the inner side wall of the mounting groove 11.

The snap cap 2 is constructed as shown in figure 4. Waist-shaped holes 21 are symmetrically formed in the two sides of the snap cap 2, and the connecting line of the central points of the two waist-shaped holes 21 passes through the circle center of the cross section of the snap cap 2.

The structure of the hook 3 is shown in fig. 5. The hook 3 is formed by bending a stainless steel wire and comprises a horizontal connecting part 32, a vertically arranged fixed end 31 and a hook part 33 designed in an arc shape. One end of the connecting portion 32 is connected to the fixing end 31, and the other end of the connecting portion 32 is connected to the hook portion 33. A hanger 34 having a smooth outer surface is provided at the lower end of the hook portion 33, and the hanger 34 is preferably a plastic ball. By providing the hanger 34, possible damage to a person by the sharp portion of the hook portion 33 is avoided. A barb 311 is provided at the lower end of the fixed end 31, and the barb 311 cannot be disposed inside the fixed end 31 and thus cannot be in contact with the inner wall of the seating groove 12, and it is preferable that the barb 311 is disposed outside the lower end of the fixed end 31. The barb 311 is formed by cutting at the lower end of the fixed end 31.

The installation process of the snap-on cap anti-disengaging structure is as follows: the fixed end 31 of the hook 3 passes through the two waist-shaped holes 21 on the snap cap 2 and then is inserted into the mounting groove 11 in an interference manner. In the process that the fixed end 31 of the hook 3 is inserted into the mounting groove 11, the barb 311 is extruded by the fixture block 111, and after the hook 3 is mounted in place, the barb 311 abuts against the lower end of the fixture block 111. And, the barb 311 is pressed and maintains a tendency to be opened in the process of inserting the fixed end 31 of the hook 3 into the installation groove 11 and after the insertion is completed. Because the hole on the snap cap 2 is the waist-shaped hole 21, after the installation is finished, the snap cap 2 can still move up and down in a certain range, when the snap cap 2 moves to the lowest end, the upper end of the waist-shaped hole 21 is abutted against the connecting part 32 of the hook 3; when the snap cap 2 is moved to the highest end, the lower end of the waist-shaped hole 21 is abutted against the connection part 32 of the hook 3, and thus the snap cap 2 cannot be removed.

Furthermore, the outer surface of the snap cap 2 is cylindrical, and the outer surface is smooth and is not easy to bear force. This arrangement makes the coefficient of surface friction of the snap cap 2 small, and it becomes very difficult to construct the snap cap retaining structure by the snap cap 2. And if the snap cap 2 is to be removed by the hook 3, it is certainly realized by the hook part 33 of the hook 3. In the process of taking down the press cap 2 through the hook part 33, the hook 3 is acted by the rotating force and slightly rotates by taking the lower end of the fixed end 31 of the hook 3 as a rotating point; or the lower end of the fixed end 31 of the hook 3 is used as a rotation point to rotate, the friction force between the hook 3 and the inner wall of the mounting groove 11 becomes larger, and the snap cap 2 can not be taken down by manpower.

The pen shown in fig. 1-2 and 7 comprises a snap cap anti-drop structure composed of a pen holder 1, a snap cap 2 and a hook 3, and further comprises a jumping mechanism and a pen core 5. The jumping mechanism comprises a rotating wheel 6, a pressing wheel 7, a spring 8 and a connecting piece 9. The bottom end of the rotating wheel 6 is abutted against the top of the pen core 5; the connecting piece 9 is sleeved on the upper part of the pressing wheel 7; the bottom end of the pressing wheel 7 is abutted against the turning wheel 6, and the top end of the pressing wheel 7 is connected with the connecting piece 9. The spring 8 is sleeved at the lower part of the refill 5, the upper end of the spring 8 is abutted to the refill 5, and the lower end of the spring 8 is abutted to the inner wall of the furled part at the lower end of the pen holder 1.

As shown in fig. 7, a plurality of convex portions 71 are provided on the outer side of the lower end of the knock roller 7, a plurality of tooth portions 61 are provided on the outer side of the upper end of the rotor 6, a gap 62 through which the convex portions 71 pass is formed between adjacent tooth portions 61, and a slope 711 which abuts against the upper end surface of the tooth portion 61 and drives the rotor 6 to rotate in the circumferential direction is formed on the lower end surface of the convex portion 71. When the pressing cap 2 pushes the connecting piece 9 to move up and down axially, the pressing wheel 7 drives the rotating wheel 6 to rotate circumferentially, the pen core 5 is driven to rotate circumferentially and simultaneously realize axial expansion and contraction under the condition that the gap 62 exists, and the spring 8 provides restoring force in the process of 3. The above structure is prior art and is not described in detail.

Further, the pen holder 1 is integrally formed and comprises a pen body, a pen point and the like which are integrally injection-molded. The pen is matched with structures such as a snap cap anti-disengaging structure, and any part forming the pen is difficult to take down after being installed. Therefore, the mistake swallowing event of the child in the pen using process can be avoided.

Example 3:

the difference between this embodiment and embodiment 1 is that a hook seat (not shown) is embedded in the top end of the pen holder 1. The outer wall of the hook seat is abutted against the inner wall of the penholder 1, and the mounting groove 11 and the fixing groove 12 are formed in the hook seat. The hook seat is made of rubber, so that larger friction force can be generated between the hook seat and the hook 3, and the snap cap is not easy to be separated.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.