Liquid crystal blackboard damping and silencing writing pen

Abstract

The utility model relates to a liquid crystal blackboard shock absorption and noise elimination writing pen which aims at reducing writing noise generated when the writing pen makes contact with a liquid crystal blackboard and improving use comfort. The writing pen comprises a pen body which is hollow; the pen point is used for realizing effective contact with a liquid crystal blackboard; the buffer spring sleeves the top of the pen head and is used for providing backward buffer force when the pen head is in contact with the liquid crystal blackboard; the spring plug and the pen point are relatively fixed, the buffer spring is clamped between the pen point and the spring plug, the buffer spring is limited to fall off, and the position of the buffer spring is kept stable; the spring plug is installed in the movable fixing piece, and the spring plug cannot be separated from the movable fixing piece.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal blackboard accessories, in particular to a liquid crystal blackboard shock-absorbing and noise-reducing writing pen. Background Art

[0002] In modern education and conference scenarios, LCD blackboards are widely used as intelligent writing and display devices. These devices are usually equipped with special writing pens for users to write and operate. However, the existing LCD blackboard writing pens on the market generally use hard wool felt as the pen head material. This material is prone to produce crisp and loud noise when it comes into contact with the LCD blackboard with hollow honeycomb board or foam core board as the bottom plate.

[0003] The experimental measurement results show that the noise generated by using a traditional hard wool felt pen on an LCD blackboard can reach 45-55 decibels. This level of noise not only disrupts the normal progress of classes and meetings, but also in the application of multimedia teaching and remote conferencing, the noise can be transmitted through the microphone, which has an adverse effect on the audio playback quality and remote interactive experience.

[0004] Due to the large resonance and noise generated by traditional LCD blackboard writing pens when in use, there is an urgent need to develop a new type of writing pen that can effectively reduce noise while maintaining a good writing experience, so as to improve the acoustic environment of teaching and meetings and enhance the multimedia interactive experience. Utility Model Content

[0005] The main purpose of the utility model is to provide a liquid crystal blackboard damping and noise-reducing writing pen, aiming to solve the technical problem that the current liquid crystal blackboard writing pen generates large reverberation and noise when in use.

[0006] To achieve the above purpose, the utility model provides a liquid crystal blackboard damping and noise-reducing writing pen, comprising:

[0007] The pen body is hollow;

[0008] The pen tip is used to achieve effective contact with the liquid crystal blackboard;

[0009] A buffer spring, sleeved on the top of the pen tip, for providing a backward buffer force when the pen tip contacts the liquid crystal blackboard;

[0010] A spring plug, wherein the spring plug is relatively fixed to the pen tip and the buffer spring is clamped between the pen tip and the spring plug to limit the buffer spring from falling off and keep its position stable;

[0011] A movable fixing part, wherein the spring plug is installed in the movable fixing part, and the spring plug cannot be separated from the movable fixing part;

[0012] The pen tip can move relative to the movable fixing member, but the pen tip cannot be separated from the movable fixing member.

[0013] Preferably, the pen tip comprises a movable rod, the buffer spring is sleeved on the movable rod, and the spring plug is fixedly connected to the movable rod.

[0014] Preferably, the movable fixing member is composed of three parts: a connecting tube, a fixing tube and a docking tube, and two ends of the fixing tube are fixedly connected to the connecting tube and the docking tube respectively.

[0015] Preferably, the movable fixing part is provided with a first limiting ring, a second limiting ring and a third limiting ring, the first limiting ring and the second limiting ring form a first limiting cavity in the movable fixing part, the buffer spring is arranged in the first limiting cavity, the second limiting ring and the third limiting ring form a second limiting cavity in the movable fixing part, the spring plug is arranged in the second limiting cavity, and the third limiting ring and the top wall of the docking tube form a third limiting cavity.

[0016] Preferably, the liquid crystal blackboard shock-absorbing and noise-reducing writing pen further comprises a magnet, and the magnet is fixedly mounted in the third limiting cavity.

[0017] Preferably, the liquid crystal blackboard shock-absorbing and noise-absorbing writing pen also includes a buffering silicone pad, which is installed in the second limiting cavity and is arranged between the top of the spring plug and the third limiting ring.

[0018] Preferably, the inner diameters of the first limiting ring and the second limiting ring are equal and smaller than the outer diameter of the buffer spring.

[0019] Preferably, the fixing tube is composed of two semi-cylindrical tubes, and a clamping groove and a clamping block are provided on the docking surface of the fixing tube. When the two semi-cylindrical tubes are combined into the fixing tube, the clamping block is clamped in the clamping groove.

[0020] Preferably, a limiting groove is provided on the pen tip for limiting the length of the connecting tube extending into the interior of the pen tip.

[0021] Preferably, the pen head is also provided with a replaceable pen tip, and the shape of the part of the pen tip that contacts the liquid crystal blackboard is designed to be a round head, a pointed head or a flat head to meet different writing needs.

[0022] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0023] This LCD blackboard shock-absorbing and sound-absorbing writing pen has the following beneficial effects:

[0024] 1. Reduce noise: By adopting the design of buffer spring and movable fixing parts, the noise generated when the pen tip contacts the LCD blackboard is effectively reduced, reducing the interference to the teaching and meeting environment.

[0025] 2. Improve writing comfort: Due to the setting of buffer springs and silicone cushions and other structures, the writing pen can provide appropriate buffering force when it comes into contact with the LCD blackboard, reduce hand pressure, and improve writing comfort.

[0026] 3. Enhanced durability: The pen head is equipped with a replaceable nib. Users can choose nibs of different shapes according to writing needs, which extends the service life of the writing pen.

[0027] 4. Improved compatibility: The pen tip is designed to be round, pointed or flat to adapt to different writing styles and needs, increasing the scope of application of the writing pen.

[0028] 5. Optimized structural design: The movable fixing part is composed of a connecting tube, a fixing tube and a docking tube. A limiting ring is arranged inside to form multiple limiting cavities, so that the pen head, buffer spring, spring plug and other components can be stably fixed in their respective positions, ensuring the overall stability of the writing pen.

[0029] 6. Easy to assemble and maintain: The fixed cylinder consists of two semi-cylindrical cylinders. The design of the slot and the block facilitates the assembly and disassembly of the writing pen, and is convenient for maintenance and replacement of parts.

[0030] 7. Improve practicality: A magnet is fixedly installed in the third limit cavity, which can absorb small metal objects and increase the practicality of the writing pen.

[0031] In summary, the patented design of the LCD blackboard shock-absorbing and noise-reducing writing pen not only reduces the noise during writing and improves writing comfort, but also enhances the durability and compatibility of the writing pen, optimizes the structural design, is easy to assemble and maintain, improves practicality, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the liquid crystal blackboard shock-absorbing and noise-reducing writing pen of the utility model;

[0033] Figure 2 This is an exploded view of the liquid crystal blackboard shock-absorbing and noise-reducing writing pen of the utility model;

[0034] Figure 3 It is a structural schematic diagram of the movable fixing member of the utility model;

[0035] Figure 4 It is a structural schematic diagram of the pen tip of the utility model. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the scheme 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 of 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.

[0037] The utility model proposes a liquid crystal blackboard damping and sound-absorbing writing pen, please refer to Figure 1 and Figure 2 ,

[0038] The pen body 100 of the liquid crystal blackboard shock-absorbing and noise-reducing writing pen is hollow, and the hollow pen body 100 helps to reduce the weight of the entire writing pen, making it easier to hold and operate.

[0039] The pen head 200 of the liquid crystal blackboard damping and noise-reducing writing pen is used to achieve effective contact with the liquid crystal blackboard;

[0040] The liquid crystal blackboard shock-absorbing and noise-absorbing writing pen includes a buffer spring 400, which is sleeved on the top of the pen tip 200 and is used to provide a backward buffer force when the pen tip 200 contacts the liquid crystal blackboard; a spring plug 500, which is relatively fixed to the pen tip 200 and clamps the buffer spring 400 between the pen tip 200 and the spring plug 500 to limit the buffer spring 400 from falling off and keep its position stable; a movable fixing part 300, the spring plug 500 is installed in the movable fixing part 300, and the spring plug 500 cannot be separated from the movable fixing part 300; wherein, the pen tip 200 can move relative to the movable fixing part 300, but the pen tip 200 cannot be separated from the movable fixing part 300. The pen tip 200 includes a movable rod 202, the buffer spring 400 is sleeved on the movable rod 202, and the spring plug 500 is fixedly connected to the movable rod 202. Please refer to Figure 3 The movable fixing part 300 is composed of three parts: a connecting tube 301, a fixing tube 303, and a docking tube 302. The two ends of the fixing tube 303 are fixedly connected to the connecting tube 301 and the docking tube 302 respectively. The movable fixing part 300 is provided with a first limiting ring 304, a second limiting ring 305, and a third limiting ring 306. The first limiting ring 304 and the second limiting ring 305 enclose a first limiting cavity 307 in the movable fixing part 300. The buffer spring 400 is arranged in the first limiting cavity 307. The second limiting ring 305 and the third limiting ring 306 enclose a second limiting cavity 308 in the movable fixing part 300. The spring plug 500 is arranged in the second limiting cavity 308. The third limiting ring 306 and the top wall of the docking tube 302 enclose a third limiting cavity 309. The inner diameters of the first limiting ring 304 and the second limiting ring 305 are equal and smaller than the outer diameter of the buffer spring 400.

[0041] The buffer spring 400 is sleeved on the top of the pen tip 200. When the pen tip 200 contacts the liquid crystal blackboard, it can provide a backward buffering force to reduce noise. The spring plug 500 is relatively fixed to the pen tip 200, clamping the buffer spring 400 to prevent it from falling off, and keeping it in a proper position to maintain a stable buffering effect. The spring plug 500 is installed in the movable fixing part 300 to ensure that the spring plug 500 will not be detached, while allowing the pen tip 200 to have a certain amount of movable space relative to the movable fixing part 300, but the pen tip 200 itself cannot be detached from the movable fixing part 300. The movable rod 202 is a part of the pen tip 200, and the buffer spring 400 is sleeved on the movable rod 202, and the spring plug 500 is fixedly connected to the movable rod 202, ensuring the overall stability of the buffer system. The three parts of the connecting tube 301, the fixed tube 303 and the docking tube 302 constitute the main structure of the movable fixing member 300, wherein the two ends of the fixed tube 303 are fixedly connected to the connecting tube 301 and the docking tube 302 respectively, forming a stable structural frame. The first limiting ring 304, the second limiting ring 305, and the third limiting ring 306: These annular structures are arranged in the movable fixing member 300, and they form the first, second, and third limiting cavities 309 together with the fixed tube 303. The first limiting cavity 307 is used to place the buffer spring 400, the second limiting cavity 308 is used to place the spring plug 500, and the third limiting cavity 309 is located at the top of the docking tube 302. The space enclosed by the first limiting cavity 307 and the second limiting cavity 308 is used to limit the range of motion of the buffer spring 400 to ensure that the spring remains in the correct position. The second limiting cavity 308 ensures that the position of the spring plug 500 is stable. The third limiting cavity 309 may be used to install other components, such as a magnet 700 or a buffering silicone pad 600. Through this internal structure design, the liquid crystal blackboard shock-absorbing and noise-reducing writing pen is intended to reduce noise when writing and improve the user's writing experience. Each component is carefully designed to ensure that the pen head 200 can effectively buffer the impact when contacting the liquid crystal blackboard, thereby reducing the noisy sound caused by hard contact.

[0042] Preferably, the liquid crystal blackboard damping and noise-absorbing writing pen also includes a magnet 700, which is fixedly installed in the third limiting cavity 309. In the preferred embodiment of the liquid crystal blackboard damping and noise-absorbing writing pen, a magnet 700 fixedly installed in the third limiting cavity 309 is also included. In this preferred embodiment, a small magnet 700 is installed in the third limiting cavity 309. Since the third limiting cavity 309 is close to the top of the pen body 100, the position of the magnet 700 is relatively high, which may help to balance the weight distribution of the pen body 100. The addition of the magnet 700 adds other uses to the writing pen. For example, it can be used to absorb small metal objects, such as paper clips, staples, etc., thereby acting as a temporary magnetic clamp or facilitating users to quickly access these small objects during teaching and meetings. The magnet 700 needs to be installed in the third limiting cavity 309 in a fixed manner to ensure that it will not move or fall off during use. This may require an appropriate fixing structure, such as an adhesive, a fastening device or other forms of physical fixing methods. When designing a writing pen containing magnet 700, the effect of magnet 700 on other components (especially metal components) needs to be considered to avoid functional failure caused by magnetic field interference or attraction. The addition of magnet 700 not only improves the versatility of the writing pen, but may also help improve the stability of the writing pen, because the weight of magnet 700 can act as a counterweight to help reduce the shaking of the pen when writing quickly.

[0043] In the preferred embodiment of the liquid crystal blackboard damping and noise-absorbing writing pen, a buffering silicone soft pad 600 is also included, which is installed in the second limiting cavity 308 and is located between the top of the spring plug 500 and the third limiting ring 306. This soft pad is made of a soft and elastic silicone material, and its main function is to provide a further buffering effect to reduce the noise generated when the pen head 200 contacts the liquid crystal blackboard. The buffering silicone soft pad 600 is arranged between the top of the spring plug 500 and the third limiting ring 306. This position can ensure that when the pen head 200 is subjected to pressure, the movement of the top of the spring plug 500 is damped by the soft pad, thereby reducing noise. By adding a buffering silicone soft pad 600, the damping effect of the writing pen is enhanced, which helps to improve the comfort when writing and may reduce the wear and tear on the surface of the liquid crystal blackboard caused by long-term use of hard objects for writing. When designing a writing pen containing a buffering silicone soft pad 600, it is necessary to consider the material selection, thickness and hardness of the soft pad, which will directly affect the buffering effect and writing experience. The buffer silicone pad 600 needs to be fixed in the second limiting cavity 308 in an appropriate manner to ensure that it does not shift or fall off during the writing process.

[0044] In the preferred embodiment of the liquid crystal blackboard damping and sound-absorbing writing pen, the design of the fixed cylinder 303 adopts a combined structure of two semi-cylindrical cylinders. The structure of the two semi-cylindrical cylinders simplifies the manufacturing process of the fixed cylinder 303, because the complex circular structure can be made in two parts and then combined. This can reduce the complexity of the mold and reduce the manufacturing cost. In order to fix the two semi-cylindrical cylinders together, their butt surfaces are respectively designed with a slot and a block. When the two semi-cylindrical cylinders are aligned and pressed together, the block will be stuck in the corresponding slot to form a stable connection. The cooperation of the slot and the block can prevent the two semi-cylindrical cylinders from separating during use, ensuring the overall stability and strength of the fixed cylinder 303. The design of the slot and the block also helps to prevent the loosening problem caused by long-term use or repeated assembly, thereby extending the service life of the writing pen. If some internal parts need to be repaired or replaced, the user can separate the two semi-cylindrical cylinders by simply disengaging the block from the slot, so as to quickly and easily access the internal structure. By providing the slots and blocks on the butt joint surface, the two semi-cylindrical tubes can be evenly butted when assembled, avoiding instability or unnecessary friction caused by uneven butt joint surfaces. The slots and blocks are designed to not only provide mechanical fixation, but also to a certain extent enhance the structural strength of the entire fixed tube 303, especially when bearing the pressure generated by the repeated movement of the pen head 200.

[0045] Please refer to Figure 4 In a preferred embodiment of the liquid crystal blackboard damping and noise-absorbing writing pen, a limiting groove 203 is designed on the pen head 200 for limiting the length of the connecting tube 301 extending into the inside of the pen head 200. The limiting groove 203 ensures that the length of the connecting tube 301 entering the pen head 200 is accurate and consistent, which is essential for maintaining the correct relationship between the pen head 200 and the movable fixing member 300. The limiting groove 203 can prevent the connecting tube 301 from being inserted too deeply into the pen head 200, and such excessive insertion may cause the pen head 200 to fail to work properly or damage the internal structure. By providing a clear indication of the insertion depth, the limiting groove 203 simplifies the assembly process of the pen head 200 and the connecting tube 301, allowing users or manufacturers to easily and accurately complete this step during assembly. Correct positioning not only helps to maintain the stability of the pen head 200, but also helps to ensure the correct function of the buffer spring 400 and other internal components, thereby optimizing the writing experience. By limiting the movement of the connecting tube 301, the limiting groove 203 helps to reduce internal wear that may be caused by frequent use, thereby improving the overall durability of the writing pen. If the pen tip 200 or other internal components need to be replaced, the limit groove 203 can be used as a quick positioning point to help the user quickly find the correct component position, simplifying the maintenance or replacement process. In mass production, the limit groove 203 can ensure that the pen tip 200 and the connecting tube 301 of each writing pen have the same matching size and position, which helps to improve product consistency and quality control.

[0046] In a preferred embodiment of the liquid crystal blackboard damping and sound-absorbing writing pen, the pen head 200 is partially designed as a replaceable pen tip 201, which provides a variety of writing styles and adaptability. The pen tip 201, as the part of the writing pen that directly contacts the liquid crystal blackboard, may be worn after long-term use. The replaceable design allows the user to easily replace the new pen tip 201, thereby extending the service life of the writing pen and maintaining the best writing effect. Provide pen tips 201 of different shapes—round, pointed or flat—to adapt to different writing styles and needs. The round pen tip 201 is suitable for writing larger fonts or graffiti, the pointed pen tip 201 is suitable for fine writing or drawing, and the flat pen tip 201 may be more suitable for side writing or writing methods that require wider lines. The pen tip 201 is composed of hard wool felt and ABS plastic. The wool felt material has good absorbency and can provide moderate friction to produce clear marks on the liquid crystal blackboard; while ABS plastic is a durable plastic material that can enhance the structural stability and durability of the pen tip 201. The pen tip 201, which combines wool felt and ABS plastic, can provide a good writing experience without damaging the LCD blackboard. This mixed material design aims to balance the writing fluency and durability of the pen tip 201. The design of the pen tip 201 should ensure that the user can easily remove and install a new pen tip 201, which may be achieved by simple pressing, rotation or other mechanical fixing methods. Providing pen tips 201 of different shapes to meet personal preferences increases the attractiveness of the product and may attract a wider user group. When the pen tip 201 is worn, the user does not need to replace the entire writing pen, but only needs to replace the pen tip 201 part, which reduces the long-term use cost. In summary, the LCD blackboard shock-absorbing and noise-reducing writing pen with a replaceable pen tip 201 design not only provides long-term economy and convenient maintenance, but also can meet the personalized writing needs of different users. By providing a variety of shapes and pen tips 201 made of high-quality materials, this writing pen can adapt to various writing scenarios while maintaining a good writing experience and protection of the LCD blackboard.

[0047] It should be noted that the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] The above are only partial or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A liquid crystal blackboard damping and sound-absorbing writing pen, characterized in that: include: The pen body is hollow; The pen tip is used to achieve effective contact with the liquid crystal blackboard; A buffer spring, sleeved on the top of the pen tip, for providing a backward buffer force when the pen tip contacts the liquid crystal blackboard; A spring plug, wherein the spring plug is relatively fixed to the pen tip and the buffer spring is clamped between the pen tip and the spring plug to limit the buffer spring from falling off and keep its position stable; A movable fixing part, wherein the spring plug is installed in the movable fixing part, and the spring plug cannot be separated from the movable fixing part; The pen tip can move relative to the movable fixing member, but the pen tip cannot be separated from the movable fixing member.

2. The liquid crystal blackboard shock-absorbing and sound-absorbing writing pen according to claim 1 is characterized in that: The pen tip comprises a movable rod, the buffer spring is sleeved on the movable rod, and the spring plug is fixedly connected to the movable rod.

3. The liquid crystal blackboard damping and sound-absorbing writing pen according to claim 1 is characterized in that: The movable fixing member is composed of three parts: a connecting tube, a fixing tube and a docking tube. The two ends of the fixing tube are fixedly connected to the connecting tube and the docking tube respectively.

4. The liquid crystal blackboard damping and sound-absorbing writing pen according to claim 3 is characterized in that: The movable fixing part is provided with a first limiting ring, a second limiting ring and a third limiting ring, the first limiting ring and the second limiting ring form a first limiting cavity in the movable fixing part, the buffer spring is arranged in the first limiting cavity, the second limiting ring and the third limiting ring form a second limiting cavity in the movable fixing part, the spring plug is arranged in the second limiting cavity, and the third limiting ring and the top wall of the docking tube form a third limiting cavity.

5. The liquid crystal blackboard damping and sound-absorbing writing pen according to claim 4 is characterized in that: The liquid crystal blackboard shock-absorbing and noise-reducing writing pen also includes a magnet, and the magnet is fixedly installed in the third limiting cavity.

6. The liquid crystal blackboard damping and sound-absorbing writing pen according to claim 4, characterized in that: The liquid crystal blackboard shock-absorbing and noise-absorbing writing pen also includes a buffer silicone cushion, which is installed in the second limiting cavity and is arranged between the top of the spring plug and the third limiting ring.

7. The liquid crystal blackboard shock-absorbing and sound-absorbing writing pen according to claim 4 is characterized in that: The inner diameters of the first limiting ring and the second limiting ring are equal and smaller than the outer diameter of the buffer spring.

8. The liquid crystal blackboard damping and sound-absorbing writing pen according to claim 3 is characterized in that: The fixed tube is composed of two semi-cylindrical tubes. A clamping groove and a clamping block are arranged on the butt joint surface of the fixed tube. When the two semi-cylindrical tubes are combined into the fixed tube, the clamping block is clamped in the clamping groove.

9. The liquid crystal blackboard damping and sound-absorbing writing pen according to claim 3, characterized in that: The pen tip is provided with a limiting groove for limiting the length of the connecting tube extending into the interior of the pen tip.

10. The liquid crystal blackboard damping and sound-absorbing writing pen according to claim 1, characterized in that: The pen head is also provided with a replaceable pen tip, and the shape of the part of the pen tip contacting the liquid crystal blackboard is designed to be a round head, a pointed head or a flat head to meet different writing needs.

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