Pen with ink bag convenient to replace

Abstract

The pen comprises a pen body, an ink bag body is arranged on one side of the pen body, a connecting ring is fixedly connected to one side of the ink bag body, one side of the connecting ring is sleeved with the center of one side of the pen body, and an external sliding groove is formed in the position, close to the center, of the outer side of the connecting ring. According to the pen with the ink bag convenient to replace, through the ingenious design of the connecting ring, the external ring, the positioning plate, the fixing rod, the pulling plate and other assemblies, rapid clamping connection and separation between the ink bag body and the pen body are achieved, and a user does not need to carry out complex disassembling steps such as unscrewing a pen holder or pulling out an old ink bag; the ink bag can be easily replaced only by pulling the pulling plate, in addition, the clamping design of the external ring and the pen body and the clamping structure of the fixing rod and the fixing groove can be completed without using any tool, and the risk that the surface of the pen is scratched or the internal structure is damaged due to improper use of the tool is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pen technical field, concretely is a pen convenient for replacing ink sac. BACKGROUND

[0002] In the existing pen design, the replacement of ink sac is often a complex and tedious process, which not only brings many inconveniences to the user, but also may cause damage or ink leakage of the ink sac during the replacement process, thereby affecting the normal use of the pen.

[0003] Many existing pens require the user to disassemble the pen complexly when replacing the ink sac, which usually includes multiple steps such as unscrewing the pen barrel and pulling out the old ink sac. These steps are not only tedious, but also easy to cause damage or loss of pen parts due to improper operation. During the disassembly process, the user often needs to use various tools such as screwdrivers and pliers, which not only increases the difficulty of replacing the ink sac, but also may scratch the pen surface or damage the internal structure due to improper use of tools. SUMMARY

[0004] The utility model aims at providing a pen convenient for replacing ink sac to solve the problem that many existing pens require the user to disassemble the pen complexly when replacing the ink sac, which usually includes multiple steps such as unscrewing the pen barrel and pulling out the old ink sac. These steps are not only tedious, but also easy to cause damage or loss of pen parts due to improper operation. During the disassembly process, the user often needs to use various tools such as screwdrivers and pliers, which not only increases the difficulty of replacing the ink sac, but also may scratch the pen surface or damage the internal structure due to improper use of tools.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a pen convenient for replacing ink sac, comprising a pen body, an ink sac body is arranged on one side of the pen body, a connecting ring is fixedly connected to one side of the ink sac body, the connecting ring is sleeved with the center of one side of the pen body, an external sliding groove is formed at the center position outside the connecting ring, a positioning plate is arranged on the top and the bottom of one side in the external sliding groove, an external ring is sleeved with and clamped to the side of the pen body, a positioning groove is formed at the top and the bottom of the external ring, the positioning plate is clamped to the positioning groove through the penetration of one side to the inside of the positioning groove, recesses are formed at the center of the top and the bottom of the external surface of the external ring, a fixing rod is arranged in the recess, a fixing groove is formed at the side of the positioning plate, the opposite sides of the two fixing rods arranged upward and downward are respectively penetrated through the external ring, the pen body and the two positioning plates in sequence and extended to the inside of the two fixing grooves and clamped to the fixing grooves, and the clamping grooves are formed at the two side positions of the inside of the external ring corresponding to the bottom of the recess.

[0006] Compared with the prior art, the utility model has the advantages of:

[0007] The pen with replaceable ink sac has the advantages that the quick clamping and separation of the ink sac body and the pen body are realized through the ingenious design of the connecting ring, the external ring, the positioning plate, the fixing rod and the pull plate and the like, the user does not need to perform complicated disassembly steps such as unscrewing the pen barrel or pulling out the old ink sac, and only needs to pull the pull plate to easily replace the ink sac, in addition, the clamping design of the external ring and the pen body and the clamping structure of the fixing rod and the fixing groove can be completed without using any tool, the risk of scratching the pen surface or damaging the internal structure due to improper use of the tool is effectively avoided, the external sliding groove, the annular sliding plate and the positioning plate and the like constitute a stable sliding and positioning system, the firm installation of the ink sac body on the pen body is ensured, the clamping structure of the positioning plate and the positioning groove and the further fixing of the fixing rod and the fixing groove effectively prevent the ink sac from falling off due to shaking or external force during use, meanwhile, the annular sealing gasket design on one side of the connecting ring ensures the close contact between the ink sac and the pen body, effectively prevents the leakage of ink, and guarantees the smoothness and cleanliness of writing, the arc-shaped limiting groove, the movable block, the arc-shaped limiting block and the return spring and the like constitute an innovative limiting and returning structure, when the fixing rod is pulled, the arc-shaped limiting block slides out of the arc-shaped limiting groove to realize the unlocking of the ink sac, and when the pull plate is released, the return spring pushes the movable block and the arc-shaped limiting block to return to be clamped into the arc-shaped limiting groove to realize the locking of the ink sac. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is a structural schematic view of the utility model;

[0009] Figure 2 It is a partial enlarged schematic view of the utility model Figure 1 A;

[0010] Figure 3 It is a partial enlarged schematic view of the utility model Figure 1 B;

[0011] Figure 4 It is a structural perspective view of the fixing rod of the utility model.

[0012] In the drawing: 1, pen body; 2, ink sac body; 3, connecting ring; 4, external ring; 5, external sliding groove; 6, annular sliding plate; 7, positioning groove; 8, positioning plate; 9, annular sealing gasket; 10, fixing groove; 11, recess; 12, fixing rod; 13, arc-shaped limiting groove; 14, movable groove; 15, movable block; 16, arc-shaped limiting block; 17, return spring; 18, buckle groove; 19, pull plate; 20, fixed buckle. DETAILED DESCRIPTION

[0013] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0014] Please refer to Figures 1-4 The utility model provides a technical scheme: a pen convenient to replace ink sac, including pen body 1, the one side of pen body 1 is provided with ink sac body 2, the one side fixedly connected with connecting ring 3 of ink sac body 2, the one side of connecting ring 3 is covered with the center of pen body 1 one side, the outside of connecting ring 3 is opened with external slide groove 5 in the center position, the top and bottom of one side in external slide groove 5 are provided with positioning plate 8, the outside of connecting ring 3 is covered with external ring 4, and external ring 4 is covered with and is clamped with the side position of pen body 1, and the top position and the bottom position of the outside position of one end of pen body 1 are opened with positioning groove 7, and the one side of positioning plate 8 is penetrated to the inside of positioning groove 7 and is clamped with positioning groove 7, and the top and bottom center of external ring 4 outer surface are opened with recess 11, and recess 11 is provided with fixed rod 12 in the inside, and the side position of positioning plate 8 is opened with fixed slot 10, and the opposite side of the two fixed rods 12 arranged upwards and downwards is penetrated external ring 4, pen body 1 and two positioning plates 8 in proper order and extends to the inside of two fixed slots 10 and is clamped with fixed slot 10, and the inside of external ring 4 is opened with buckle slot 18 in the side position corresponding to the bottom of recess 11.

[0015] The inside of external slide groove 5 is slidably connected with annular slide plate 6, and the top and bottom of one side of annular slide plate 6 are fixedly connected with the other side of two positioning plates 8 respectively, and the outside of annular slide plate 6 is penetrated to the outside of external slide groove 5 and is fixedly connected with the inner wall of external ring 4.

[0016] The opposite side of the two fixed rods 12 arranged upwards and downwards is fixedly connected with pull plate 19 in the inside corresponding to recess 11.

[0017] The one side of connecting ring 3 is fixedly connected with annular sealing gasket 9, and the side surface of pen body 1 is contacted with the one side of annular sealing gasket 9.

[0018] The center position of both sides of fixed rod 12 surface is opened with arc limiting slot 13, and the inside of movable slot 14 corresponding to both sides of fixed rod 12 is opened with movable slot 14 in pen body 1, and movable block 15 is slidably connected in the inside of movable slot 14, and the opposite side of the two movable blocks 15 arranged left and right is fixedly connected with arc limiting block 16, and the side, away from movable block 15 of arc limiting block 16, is penetrated to the inside of arc limiting slot 13 and is clamped with arc limiting slot 13.

[0019] The two movable blocks 15 arranged left and right are fixedly connected with reset springs 17 on the opposite sides, and the sides away from the movable blocks 15 are fixedly connected with one side in the movable slot 14.

[0020] The two sides of the bottom of the pull plate 19 are fixedly connected with fixed buckles 20, and the sides away from the pull plate 19 are penetrated into the inside of the buckle slot 18 and are buckled with the buckle slot 18.

[0021] Working principle: the user first needs to preliminarily position the ink sac body 2 through the connecting ring 3 on it and the pen body 1, specifically, one side of the connecting ring 3 is sleeved with the center of one side of the pen body 1, so that the ink sac body 2 can be accurately placed in the predetermined position of the pen body 1, in this process, the external sliding groove 5 opened on the outside of the connecting ring 3 and the inside of the positioning plate 8 play a key role, the positioning plate 8 can slide in the external sliding groove 5 and move to the appropriate position as needed, when the ink sac body 2 is correctly placed, one side of the positioning plate 8 will be penetrated into the inside of the positioning slot 7 on the outer side of one end of the pen body 1 and buckled with the positioning slot 7, this step ensures the preliminary stability and positioning accuracy of the ink sac body 2 on the pen body 1, after the preliminary positioning is completed, the external ring 4 and the positioning plate 8 need to be further fixed to ensure the firm installation of the ink sac body 2, the user needs to sleeve the external ring 4 on the outside of the connecting ring 3 and make it sleeve and buckle with the side of the pen body 1, in this step, the external ring 4 not only plays a fixing role, but also provides convenience for ink sac replacement through its design, then the user needs to operate the pull plate 19 and the fixed rod 12 thereon, specifically, the two fixed rods 12 arranged up and down need to be penetrated into the inside of the external ring 4, the pen body 1 and the two positioning plates 8 and finally extended to the inside of the fixed slot 10 on the positioning plate 8 and buckled with the fixed slot 10, in this process, the pull plate 19 not only serves as a carrier for the fixed rod 12, but also realizes the stable installation of the pull plate 19 and the fixed rod 12 through the fixed buckles 20 on the bottom thereof and the buckle slots 18 in the inside of the external ring 4, in order to further enhance the stability of the ink sac body 2 and prevent it from falling off or shaking during use, the utility model also designs a set of limiting and resetting mechanism, the arc-shaped limiting slots 13 on the surface of the fixed rod 12 and the movable slot 14 in the inside of the pen body 1, the movable block 15 and the arc-shaped limiting block 16 in the inside thereof cooperate with each other, when the fixed rod 12 is correctly installed, the arc-shaped limiting block 16 will be penetrated into the inside of the arc-shaped limiting slot 13 and buckled with the arc-shaped limiting slot 13, this step ensures that the fixed rod 12 will not move or fall off at will when subjected to external force, at the same time, the reset springs 17 fixedly connected on the opposite sides of the two movable blocks 15 also play a key role, the reset springs 17 can maintain a certain tension after the arc-shaped limiting block 16 is buckled with the arc-shaped limiting slot 13, so as to help the arc-shaped limiting block 16 reset quickly and buckle again when needed.

[0022] In summary: the pen with replaceable ink sac, through the clever design of connecting ring 3, external ring 4, positioning plate 8, fixed rod 12 and pull plate 19 and other components, the quick clamping and separation between the ink sac body 2 and the pen body 1 is realized, the user does not need to carry out complex disassembly steps, such as unscrewing the pen barrel or pulling out the old ink sac, only needs to pull the pull plate 19 to easily complete the replacement of the ink sac, in addition, the clamping design of the external ring 4 and the pen body 1, and the clamping structure of the fixed rod 12 and the fixed groove 10, can be completed without using any tools, effectively avoiding the risk of scratching the surface of the pen or damaging the internal structure due to improper use of tools, a stable sliding and positioning system is formed by the components such as external sliding groove 5, annular sliding plate 6 and positioning plate 8, ensuring the firm installation of the ink sac body 2 on the pen body 1, the clamping structure of the positioning plate 8 and the positioning groove 7, and the further fixation of the fixed rod 12 and the fixed groove 10, effectively prevent the ink sac from falling off due to shaking or external force during use, at the same time, the design of the annular sealing gasket 9 on one side of the connecting ring 3 ensures the close contact between the ink sac and the pen body 1, effectively preventing the leakage of ink, ensuring the smoothness and cleanliness of writing, an innovative limiting and resetting structure is formed by the components such as arc limiting groove 13, movable block 15, arc limiting block 16 and reset spring 17, when the fixed rod 12 is pulled, the arc limiting block 16 will slide out of the arc limiting groove 13, realizing the unlocking of the ink sac; when the pull plate 19 is released, the reset spring 17 will push the movable block 15 and the arc limiting block 16 to reset, re-clamp into the arc limiting groove 13, realizing the locking of the ink sac.

[0023] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0024] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fountain pen with easily replaceable ink cartridges, comprising a pen body (1), characterized in that: One side of the pen body (1) is provided with an ink cartridge body (2), and a connecting ring (3) is fixedly connected to one side of the ink cartridge body (2). One side of the connecting ring (3) is fitted with the center of one side of the pen body (1). An external sliding groove (5) is provided on the outer side of the connecting ring (3) near the center. Positioning plates (8) are provided on the top and bottom of one side of the external sliding groove (5). An external ring (4) is fitted on the outer side of the connecting ring (3). The external ring (4) is fitted and snapped onto one side of the pen body (1). Positioning grooves (7) are provided on the top and bottom of one side of the pen body (1) near the outer side. (8) One side extends into the interior of the positioning groove (7) and engages with the positioning groove (7). The outer ring (4) has grooves (11) at the center of the top and bottom of its outer surface. A fixing rod (12) is provided inside the groove (11). A fixing groove (10) is provided on one side of the positioning plate (8). The two fixing rods (12) provided above and below each other pass through the outer ring (4), the pen body (1) and the two positioning plates (8) respectively and extend into the interior of the two fixing grooves (10) and engage with the fixing grooves (10). The outer ring (4) has buckle grooves (18) on both sides of the bottom of the corresponding groove (11).

2. The fountain pen with an easily replaceable ink cartridge according to claim 1, characterized in that: The external slide groove (5) is internally connected to an annular slide plate (6). The top and bottom of one side of the annular slide plate (6) are fixedly connected to the other side of the two positioning plates (8), respectively. The outer side of the annular slide plate (6) extends through to the outside of the external slide groove (5) and is fixedly connected to the inner wall of the external ring (4).

3. The fountain pen with an easily replaceable ink cartridge according to claim 1, characterized in that: Two fixed rods (12) set at the top and bottom are fixedly connected to a pull plate (19) inside the groove (11) on the opposite side of the two fixed rods (12).

4. A fountain pen with an easily replaceable ink cartridge according to claim 1, characterized in that: One side of the connecting ring (3) is fixedly connected to an annular sealing gasket (9), and one side of the annular sealing gasket (9) is in contact with the side surface of the pen body (1).

5. A fountain pen with an easily replaceable ink cartridge according to claim 1, characterized in that: Arc-shaped limiting grooves (13) are provided on both sides of the surface of the fixed rod (12) near the center. Movable grooves (14) are provided on both sides of the pen body (1) corresponding to the fixed rod (12). Movable blocks (15) are slidably connected inside the movable grooves (14). Arc-shaped limiting blocks (16) are fixedly connected to the opposite side of the two movable blocks (15) on the left and right. The side of the arc-shaped limiting block (16) away from the movable block (15) penetrates into the interior of the arc-shaped limiting groove (13) and engages with the arc-shaped limiting groove (13).

6. A fountain pen with an easily replaceable ink cartridge according to claim 5, characterized in that: Two movable blocks (15) set on the left and right are fixedly connected to a return spring (17) on the opposite side. The side of the return spring (17) away from the movable block (15) is fixedly connected to the side of the movable groove (14).

7. A fountain pen with an easily replaceable ink cartridge according to claim 3, characterized in that: The bottom of the pull plate (19) is fixedly connected to two sides by fixing buckles (20). The side of the fixing buckle (20) away from the pull plate (19) extends into the inside of the buckle groove (18) and engages with the buckle groove (18).

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