Pen with adjustable gravity center

Abstract

The utility model discloses a pen with an adjustable center of gravity, which comprises a shell and a pen point at the tail end of the shell, a support rod is arranged in the shell, the shell comprises an upper shell and a lower shell, the upper shell is clamped at the upper end of the support rod, the lower shell is rotatably mounted at the lower end of the support rod, and the pen point is in threaded connection with the tail end of the support rod; an adjustable balancing weight is arranged on the supporting rod and used for increasing the gravity of the pen, and writing is facilitated. A limiting part is arranged between the balancing weight and the lower shell, the lower shell is rotated, the balancing weight is driven to rotate and adjust through the limiting part, the pen holding positions of all people are different, a user can adjust the position of the balancing weight according to the different pen holding positions of the user, the gravity center of the pen is adjusted to a comfortable position, and the requirement for the comfort of the user during writing is met.

Description

Technical Field

[0001] The utility model relates to the field of object-holding pens, in particular to a pen with an adjustable center of gravity. Background Art

[0002] A pen is a common stationery in daily life, usually used for writing and widely used by people. In order to increase the stability when writing, a pen with a counterweight inside has been invented on the market. Everyone holds the pen in a different position, so the center of gravity position is also different. The existing pen with a counterweight cannot adjust the center of gravity position according to the needs of the user. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a pen with an adjustable center of gravity. In order to solve the above technical problems, the utility model provides the following technical solutions.

[0004] A pen with an adjustable center of gravity comprises a shell and a pen tip at the end of the shell, a support rod is arranged inside the shell, the shell comprises an upper shell and a lower shell, the upper shell is clamped on the upper end of the support rod, the lower shell is rotatably installed on the lower end of the support rod, and the pen tip is threadedly connected to the end of the support rod; an adjustable counterweight block is arranged on the support rod, and a limiting portion is arranged between the counterweight block and the lower shell.

[0005] Furthermore, the support rod includes a connecting rod at the upper end and a threaded rod at the lower end, the upper shell is clamped on the connecting rod, and the lower shell is sleeved on the threaded rod. The counterweight block is installed on the threaded rod by threading, and the position is adjusted by rotation.

[0006] Furthermore, the limiting part includes a first limiting plane on both sides of the counterweight block and a second limiting plane in the lower shell body. The first limiting plane and the second limiting plane are adapted to each other and always fit each other. When the lower shell body rotates, the counterweight block is driven to rotate through the first limiting plane and the second limiting plane.

[0007] Furthermore, a clamping portion is provided between the upper shell and the connecting rod, and the upper shell is fixed to the connecting rod through the clamping portion.

[0008] Furthermore, the clamping portion includes a plurality of clamping grooves on the side wall of the connecting rod, a clamping block protruding from the inner side of the upper shell, and a clamping rib protruding from the side wall of the connecting rod.

[0009] Furthermore, the clamping groove extends from the top to the bottom of the connecting rod, and the upper end of the clamping groove is open.

[0010] Furthermore, guide surfaces are provided on both sides of the open end of the clamping groove.

[0011] Furthermore, a raised limiting ring is provided on the side wall of the connecting rod, the limiting ring is located at the end of the connecting rod, and a groove body adapted to the limiting ring is provided on the inner side of the upper shell body. When the upper shell body and the connecting rod are assembled, the connecting ring is against the groove body.

[0012] Furthermore, a grip sleeve is provided on the lower shell.

[0013] Furthermore, an adjustable pen clip is provided on one side of the upper shell.

[0014] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0015] The housing of the utility model is provided with a support rod, and the housing includes an upper housing and a lower housing, the upper housing is clamped to the upper end of the support rod, the lower housing is rotatably installed at the lower end of the support rod, the pen head is threadedly connected to the end of the support rod, and the pen head presses against the lower housing from below to prevent the lower housing from falling; an adjustable counterweight is provided on the support rod, and the counterweight is used to increase the gravity of the pen for easy writing; a limiting part is provided between the counterweight and the lower housing, and the lower housing is rotated to drive the counterweight in the lower housing to rotate and adjust through the limiting part. Each person's pen holding position is different, and the user can adjust the position of the counterweight according to their different pen holding positions, and adjust the center of gravity of the pen to a more comfortable position to meet the comfort when writing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model.

[0017] Figure 2 It is a cross-sectional view of the utility model.

[0018] Figure 3 It is a three-dimensional diagram of the support rod of the utility model.

[0019] Figure 4 It is a three-dimensional diagram of the lower shell of the utility model.

[0020] Figure numerals: 1, shell, 2, pen tip, 3, support rod, 4, upper shell, 5, lower shell, 6, counterweight, 7, limiting part, 8, connecting rod, 9, threaded rod, 10, first limiting plane, 11, second limiting plane, 12, clamping part, 13, clamping groove, 14, clamping block, 15, clamping rib, 16, guide surface, 17, limiting ring, 18, groove body, 19, pen clip, 20, grip sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-4 As shown, a pen with adjustable center of gravity comprises a housing 1 and a pen tip 2 at the lower end of the housing 1. A support rod 3 is arranged inside the housing 1, and the support rod 3 is hollow inside. The pen core passes through the support rod 3 and passes out of the pen tip 2. The housing 1 comprises an upper housing 4 and a lower housing 5. The upper housing 4 is clamped at the upper end of the support rod 3, and the lower housing 5 is rotatably installed at the lower end of the support rod 3. The support rod 3 passes through the lower housing 5. The pen tip 2 is threadedly connected to the end of the support rod 3, and the pen tip 2 presses against the lower housing 5 from below to prevent the lower housing 5 from falling.

[0023] The support rod 3 is shown as having an adjustable counterweight 6, which is used to increase the gravity of the pen, increase the hand feel when writing, and make writing more stable and convenient. The counterweight 6 is adjustable and is always located in the lower shell 5 before and after adjustment. A limiting portion 7 is provided between the counterweight 6 and the lower shell 5. The lower shell 5 is rotated, and the counterweight 6 in the lower shell 5 is driven to rotate and adjust through the limiting portion 6 to change the center of gravity position of the pen. The pen holding position of each person is different. The user can adjust the position of the counterweight 6 according to their different pen holding positions, and adjust the center of gravity of the pen to a more comfortable position to meet the user's comfort when writing.

[0024] The support rod 3 shown includes a connecting rod 8 at the upper end and a threaded rod 9 at the lower end. The upper shell 4 is clamped on the connecting rod 8, and the lower shell 5 is sleeved on the threaded rod 9 and can rotate, and the pen head 2 at the lower end abuts against the lower shell 5. The counterweight 6 is circular, and the counterweight 6 is installed on the threaded rod 9 by means of threads, and the position of the counterweight 6 is adjusted by rotating the threads.

[0025] The limiting part 7 shown includes a first limiting plane 10 on both sides of the counterweight 6 and a second limiting plane inside the lower shell 5. The first limiting plane 10 is adapted to the second limiting plane 11 and is always in a fitting state. The first limiting plane 10 is against the second limiting plane 11. When the lower shell 5 is rotated, the second limiting plane 11 inside rotates synchronously, and drives the first plane 10 to rotate, and the counterweight 6 also rotates to achieve up and down displacement.

[0026] The adjustment method of the counterweight 6 is: remove the pen tip 2, move the lower shell 5 downward, and then rotate the lower shell 5 to drive the counterweight 6 to rotate synchronously and move up or down. After the adjustment is completed, manually move the lower shell 5 upward to the lower end of the upper shell 4, and finally tighten the pen tip 2 thread.

[0027] The illustrated clamping part 12 includes a plurality of clamping grooves 13 on the side wall of the connecting rod 8, a clamping block 14 protruding from the inner side of the upper shell 4, and a clamping rib 15 protruding from the side wall of the connecting rod 8. The clamping block 14 is adapted to the clamping groove 13. There are preferably two clamping grooves 13, which are distributed on both sides of the connecting rod 8. The ends of the clamping groove 13 are open. When the upper shell 4 is inserted from top to bottom into the connecting rod 8, the clamping block 14 is gradually embedded along the open part of the clamping groove 13 to prevent the upper shell 4 from rotating left and right. The clamping rib 15 is engaged with the inner wall of the upper shell 4 to prevent the upper shell 4 from falling.

[0028] Guide surfaces 16 are provided on both sides of the open end of the shown snap-in groove 13, and the guide surfaces 16 are inclined slopes. The user may need to disassemble the upper shell 4 to assemble the refill. The design of the guide surfaces 16 makes it easier for the user to assemble the upper shell 4 without having to find the position of the snap-in groove 13 very accurately. When the snap-in block 14 touches the guide surfaces 16 on both sides, the snap-in block 14 can be embedded in the snap-in groove 13 along the guide surfaces 16, which is convenient for the user to assemble.

[0029] A raised limit ring 17 is provided on the side wall of the connecting rod 8 shown in the figure. The limit ring 17 is located at the end of the connecting rod 8. A groove 18 adapted to the limit ring 17 is provided on the inner side of the upper shell 4. When the upper shell 4 and the connecting rod 8 are assembled, the limit ring 17 is located in the groove 18 and is opposed to each other and cannot go deeper, thereby preventing the upper shell 4 from being inserted too deeply.

[0030] An adjustable pen clip 19 is provided on one side of the upper shell 4, and the pen clip 19 is used to clamp the pen on the book.

[0031] As shown, a grip sleeve 20 is disposed on the lower shell body 5. The grip sleeve 20 includes a silicone material and has a soft feel, thereby increasing the grip feel when grasping.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A pen with adjustable center of gravity, comprising a shell and a pen tip at the end of the shell, characterized in that: A support rod is arranged inside the shell, and the shell includes an upper shell and a lower shell, the upper shell is clamped on the upper end of the support rod, the lower shell is rotatably installed on the lower end of the support rod, and the pen head is threadedly connected to the end of the support rod; an adjustable counterweight block is arranged on the support rod, and a limiting part is arranged between the counterweight block and the lower shell.

2. A pen with adjustable center of gravity according to claim 1, characterized in that: The support rod includes a connecting rod at the upper end and a threaded rod at the lower end. The upper shell is clamped on the connecting rod, and the lower shell is sleeved on the threaded rod. The counterweight block is installed on the threaded rod by threading, and the position is adjusted by rotation.

3. A pen with adjustable center of gravity according to claim 2, characterized in that: The limiting part includes a first limiting plane on both sides of the counterweight block and a second limiting plane in the lower shell body. The first limiting plane and the second limiting plane are adapted to each other and always fit each other. When the lower shell body rotates, the counterweight block is driven to rotate through the first limiting plane and the second limiting plane.

4. A pen with adjustable center of gravity according to claim 2, characterized in that: A clamping portion is provided between the upper shell and the connecting rod, and the upper shell is fixed on the connecting rod through the clamping portion.

5. A pen with adjustable center of gravity according to claim 4, characterized in that: The clamping part includes a plurality of clamping grooves on the side wall of the connecting rod, a clamping block protruding from the inner side of the upper shell body, and a clamping rib protruding from the side wall of the connecting rod.

6. A pen with adjustable center of gravity according to claim 5, characterized in that: The clamping groove extends from the top to the bottom of the connecting rod, and the upper end of the clamping groove is open.

7. A pen with adjustable center of gravity according to claim 6, characterized in that: Guide surfaces are arranged on both sides of the open end of the clamping groove.

8. A pen with adjustable center of gravity according to claim 2, characterized in that: A raised limiting ring is arranged on the side wall of the connecting rod, and the limiting ring is located at the end of the connecting rod. A groove body adapted to the limiting ring is arranged on the inner side of the upper shell body. When the upper shell body and the connecting rod are assembled, the connecting ring abuts against the groove body.

9. A pen with adjustable center of gravity according to claim 1, characterized in that: A grip sleeve is arranged on the lower shell body.

10. A pen with adjustable center of gravity according to claim 1, characterized in that: An adjustable pen clip is arranged on one side of the upper shell.

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