Chalk box
By adopting a vertical sliding mount and slot structure in the chalk box, the problems of different chalk lengths and chalk gray are solved, and the stable storage and dust collection of chalk is achieved, which improves the use safety.
Patent Information
- Application Number
- CN202421217087.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The chalk lengths in existing chalk boxes are different and mixed, resulting in instability. Chalk gray can easily cause health risks, and chalk gray is easily inhaled during use.
A chalk box is designed, adopting a vertical sliding mount and slot structure. The bottom end of the chalk is inserted vertically into the slot. After use, it can be reinserted to avoid mixing and breaking; at the same time, it passes through the powder leakage hole and adsorption sponge structure. Collect chalk ash to prevent dust from overflowing.
It effectively avoids instability caused by different lengths of chalk and health risks of chalk ash inhalation, and improves the convenience and safety of chalk.
Smart Images
Figure CN222246669U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of teaching tools, in particular to a chalk box. Background Art
[0002] Chalk boxes are common teaching tools in the classroom, which are usually placed on the podium to hold chalks. Common chalk boxes are square boxes with a storage cavity for storing chalks. During use, the user takes out chalks from the chalk box for use. The length of the chalks becomes shorter after use. When the chalks are put back into the chalk box, chalks of different lengths in the chalk box are mixed together. Mixed and disordered chalks in the chalk box are likely to cause instability of the chalks, and the chalks are prone to breakage in the chalk box.
[0003] In addition, when chalk is in use, its surface will be stained with chalk dust. When it is thrown back into the chalk box, the chalk dust will be brought into the chalk box. When the user approaches the chalk box to look for chalk, he or she is likely to inhale a certain amount of chalk dust, which poses a certain health risk. Utility Model Content
[0004] In order to improve the problems existing in the above-mentioned technology, the present application provides a chalk box.
[0005] The present application provides a chalk box adopting the following technical solution:
[0006] A chalk box comprises a shell, a mounting seat is vertically slidably arranged in the shell, a plurality of slots are provided on the mounting seat, the slots are used for vertically inserting the bottom end of the chalk, and a fixing piece for fixing the position of the mounting seat on the shell is provided on the shell; a first powder leakage hole connected to the slot is provided on the mounting seat, a shell cover is hinged on the top of the shell, and an adsorption sponge is provided on the inner side of the shell cover.
[0007] By adopting the above technical solution, when using the chalk box to place chalks, the bottom end of the chalk is vertically inserted into the slot, so that multiple chalks are vertically placed in the slot; during the use of the chalk box, the shell cover rotates to expose the internal space of the shell, and then the sliding mounting seat can drive the slot to drive the chalk thereon to be exposed, and then the position of the mounting seat is fixed by the fixing piece, so that it is convenient for the user to take the chalk for use, and when the user has finished using the chalk, the chalk can be reinserted into the corresponding slot, thereby avoiding that chalks of different lengths are mixed and placed in the chalk box in disorder, which causes the chalk to break due to instability; and this method is also beneficial to the subsequent use of the user, by avoiding the chalks from being mixed in the chalk box, and thus avoiding the user from approaching the chalk box to search, thereby preventing the user from inhaling chalk dust in the process of turning over the chalk.
[0008] In addition, when the chalk is placed in the slot, excess chalk dust carried and stained on the chalk will leak to the bottom of the shell through the first powder leakage hole, and when the shell cover is rotated to close the shell, that is, the chalk box is placed without being used, the adsorption sponge on the inside of the shell can absorb the chalk dust floating in the shell, thereby preventing the chalk dust from overflowing when the chalk box is subsequently punched in and used again, causing accidental inhalation by the user.
[0009] Optionally, a plurality of guide grooves are provided on the mounting seat, each guide groove is connected to a slot, and a cross section of the guide groove gradually increases in a direction away from the corresponding slot.
[0010] By adopting the above technical solution, the bottom of the chalk is inserted into the slot through the guide groove. Since the cross-section of the guide groove gradually increases in the direction away from the corresponding slot, that is, the guide groove is in the shape of an outward-expanding trumpet, the chalk inserted into the slot is guided, which is beneficial to the insertion of the chalk.
[0011] Optionally, a sponge layer is provided on the inner wall of the slot.
[0012] By adopting the above technical solution, when the bottom end of the chalk is inserted into the slot, the sponge layer abuts against the outer wall of the chalk. On the one hand, the sponge layer can improve the stability of the chalk when it is in the slot, and on the other hand, it can absorb the chalk dust attached to the outer wall of the chalk to a certain extent, which is beneficial to the user's use.
[0013] Optionally, a first vertically arranged sliding groove is provided on the shell, and the fixing member includes a guide block slidably arranged in the first sliding groove, a positioning rod is slidably arranged on the guide block, and a positioning plate is provided on the shell, and a plurality of positioning holes are vertically arranged on the positioning plate, and the positioning holes are used for inserting the positioning rod.
[0014] By adopting the above technical solution, the sliding of the guide block in the first slide groove drives the mounting seat to slide. When the mounting seat slides to a suitable position, the positioning rod is slid to insert the positioning rod into the corresponding positioning hole. The position of the positioning rod on the positioning plate is thereby fixed, thereby fixing the position of the mounting seat. The fixing method is simple and convenient.
[0015] Optionally, an anti-slip plate is provided on the positioning rod, a matching hole for inserting the anti-slip plate is provided at the positioning hole, a column groove coaxial with the positioning rod is provided on the guide block, the positioning rod is slid in the column groove, and a spring connected to one end of the positioning rod away from the anti-slip plate is provided in the column groove.
[0016] By adopting the above technical solution, when the mounting seat slides to an appropriate position, the positioning rod is slid to insert the positioning rod into the corresponding positioning hole. At this time, the anti-slip plate is inserted into the corresponding matching hole. During this process, the spring is stretched and deformed, and then the anti-slip plate can be rotated. The positioning rod is thereby rotated in the column groove. After the anti-slip plate is rotated to abut against the positioning plate, the positioning plate is located between the spring and the anti-slip plate. Under the pulling action of the spring, the anti-slip plate will maintain abutment against the positioning plate and its sliding direction close to the column groove will be restricted, thereby improving the stability of the positioning rod when it is inserted into the positioning hole and preventing the positioning rod from being separated from the positioning groove.
[0017] Optionally, a plurality of slots are provided on a side of the anti-slip plate away from the positioning rod, and each slot is connected to one of the positioning holes and is used for the anti-slip plate to be inserted therein.
[0018] By adopting the above technical solution, the card slot is used for the anti-slip plate to be inserted into to improve the stability of the anti-slip plate when it is fixed, and then the stability of the positioning rod when it is inserted into the positioning hole is further improved, ultimately achieving the purpose of improving the stability of the mounting base when it is fixed.
[0019] Optionally, a first ring plate is provided on the positioning rod, and a second ring plate is provided in the column groove, and the first ring plate abuts against the second ring plate to limit the positioning rod from being separated from the column groove.
[0020] By adopting the above technical solution, the sliding of the positioning rod in the column groove drives the first ring plate to slide. When the first ring plate slides to abut against the second ring plate, the continued sliding of the first ring plate in the same direction is restricted, thereby restricting the continued sliding of the positioning rod in the same direction, thereby preventing the positioning rod from leaving the column groove.
[0021] Optionally, a second vertically arranged slide groove is provided in the shell, and a sliding block is provided on the mounting seat. The sliding block is located in the second slide groove and slidably cooperates with the second slide groove.
[0022] By adopting the above technical solution, when the mounting seat slides in the shell, the slider slides synchronously in the second sliding groove, thereby improving the stability of the mounting seat during sliding and avoiding misalignment during the sliding of the mounting seat.
[0023] Optionally, a powder collecting drawer is slidably provided at the bottom of the shell, and the powder collecting drawer is communicated with the bottom space of the shell.
[0024] By adopting the above technical solution, when the chalk is placed in the slot, the excess chalk dust carried and stained on the chalk will leak through the first powder leakage hole into the powder collecting drawer at the bottom of the shell body. The powder collecting drawer collects the chalk dust, which is beneficial to the subsequent processing of the chalk dust in the chalk box.
[0025] In summary, the present application includes at least one of the following beneficial technical effects:
[0026] 1. It is convenient for users to take chalk for use. After using the chalk, the user can reinsert the chalk into the corresponding slot, thereby preventing chalks of different lengths from being mixed and placed in a disorderly manner in the chalk box, which may cause the chalk to break due to instability; and this method is also beneficial to the subsequent use of the user. By preventing the chalk from being mixed in the chalk box, the user can avoid approaching the chalk box to search for it, thereby preventing the user from inhaling chalk dust when turning over the chalk;
[0027] 2. When the chalk is placed in the slot, the excess chalk dust carried and stained on the chalk will leak to the bottom of the shell through the first powder leakage hole, and when the shell cover is rotated to close the shell, that is, the chalk box is placed without being used, the adsorption sponge inside the shell can absorb the floating chalk dust in the shell, thereby preventing the chalk dust from overflowing when the chalk box is subsequently used again and causing the user to inhale it accidentally;
[0028] 3. The bottom of the chalk is inserted into the slot through the guide groove. Since the cross section of the guide groove gradually increases in the direction away from the corresponding slot, that is, the guide groove is in the shape of an outward-expanding trumpet, the chalk inserted into the slot is guided, which is conducive to the insertion of the chalk. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a structural schematic diagram of a chalk box in an embodiment of the present application;
[0030] Figure 2 is a schematic diagram of an embodiment of the present application at another angle;
[0031] Figure 3 is a cross-sectional view of an embodiment of the present application;
[0032] Figure 4 is a schematic diagram of a mounting base in an embodiment of the present application;
[0033] Figure 5 It is a cross-sectional view of the guide block in the embodiment of the present application.
[0034] Explanation of the reference numerals in the accompanying drawings: 1. Shell; 2. Mounting seat; 3. Slot; 4. First powder leakage hole; 5. Shell cover; 6. Adsorption sponge; 7. Guide groove; 8. Sponge layer; 9. First slide groove; 10. Guide block; 11. Positioning rod; 12. Positioning plate; 13. Positioning hole; 14. Anti-slip plate; 15. Matching hole; 16. Column groove; 17. Spring; 18. Slot; 19. First ring plate; 20. Second ring plate; 21. Second slide groove; 22. Sliding block; 23. Powder collecting drawer; 24. Handle; 25. First magnetic block; 26. Second magnetic block; 27. Second powder leakage hole. DETAILED DESCRIPTION
[0035] The following is combined with Figure 1-5 This application is described in further detail.
[0036] The present application embodiment discloses a chalk box. Figure 1 and Figure 2 The chalk box comprises a housing 1, a mounting seat 2 is vertically slidably arranged in the housing 1, a plurality of slots 3 are provided on the mounting seat 2, the slots 3 are used for vertically inserting the bottom end of the chalk, and a fixing member is provided on the housing 1 for fixing the position of the mounting seat 2 on the housing 1; Figure 3 A first powder leakage hole 4 communicating with the slot 3 is provided on the mounting seat 2, a shell cover 5 is hinged on the top of the shell body 1, and an adsorption sponge 6 is arranged inside the shell cover 5.
[0037] Reference Figure 3 and Figure 4 A plurality of guide grooves 7 are provided on the mounting seat 2, each of which is connected to a slot 3. The cross section of the guide groove 7 gradually increases in the direction away from the corresponding slot 3, and the guide groove 7 is in the shape of a trumpet expanding outward. A sponge layer 8 is fixed to the inner wall of the slot 3; the bottom of the chalk is inserted into the slot 3 through the guide groove 7, and the guide groove 7 guides the chalk inserted into the slot 3 to facilitate the docking of the chalk with the slot 3. When the bottom end of the chalk is inserted into the slot 3, the sponge layer 8 abuts against the outer wall of the chalk. On the one hand, the sponge layer 8 can improve the stability of the chalk when it is located in the slot 3, and on the other hand, it can adsorb the chalk dust attached to the outer wall of the chalk to a certain extent.
[0038] Reference Figure 2 and Figure 3 A powder collecting drawer 23 is slidably provided at the bottom of the shell 1, and a handle 24 is fixed on the powder collecting drawer 23, and the powder collecting drawer 23 is connected to the bottom space of the shell 1; when the chalk is placed in the slot 3, the excess chalk dust carried and stained on the chalk will leak into the powder collecting drawer 23 at the bottom of the shell 1 through the first powder leakage hole 4, and the powder collecting drawer 23 can be pulled out by pulling the handle 24 to process the chalk dust in the chalk box.
[0039] Reference Figure 3 In the embodiment of the present application, in order to further facilitate the powder collecting drawer 23 to collect and process the chalk dust in the chalk box, a plurality of second powder leakage holes 27 are also provided on the mounting base 2, and the chalk dust in the chalk box can leak into the powder collecting drawer 23 at the bottom of the shell 1 through the second powder leakage holes 27.
[0040] Reference Figure 1 and Figure 3The housing 1 is provided with a first vertically arranged slot 9, and the fixing member includes a guide block 10 slidably arranged in the first slot 9, and two positioning rods 11 are slidably arranged on the guide block 10, and the two positioning rods 11 are arranged horizontally and can slide in a direction away from or close to each other; two opposite positioning plates 12 are fixed on the housing 1, and the guide block 10 is located between the two positioning plates 12, and each positioning plate 12 corresponds to a positioning rod 11, and each positioning plate 12 is provided with a plurality of positioning holes 13 distributed vertically, and the positioning rod 11 can be inserted into the positioning hole 13 on the corresponding positioning plate 12. The sliding of the guide block 10 in the first slot 9 drives the mounting seat 2 to slide, and when the mounting seat 2 slides to a suitable position, the positioning rod 11 is slid so that the positioning rod 11 is inserted into the corresponding positioning hole 13, and the position of the positioning rod 11 on the positioning plate 12 is thereby fixed, thereby fixing the position of the mounting seat 2.
[0041] In order to prevent chalk dust from overflowing through the first slide groove 9, two relative soft pads or sponges (not shown in the figure) can be fixed in the first slide groove 9. The two soft pads or sponges fit together to close the first slide groove 9. When the guide block 10 slides in the first slide groove 9, the guide block 10 will push the two soft pads or sponges apart to avoid sliding obstruction.
[0042] Reference Figure 3 and Figure 5 A locking plate 18 is provided on the positioning rod 11, and a matching hole 15 for inserting the locking plate 14 and a slot 18 for inserting the locking plate 14 are provided on the positioning plate 12. The slot 18 is provided on the side of the positioning plate 12 away from the guide block 10, and each positioning hole 13 is connected with a matching hole 15 and a slot 18; a column groove 16 coaxial with the positioning rod 11 is provided on the guide block 10, and the positioning rod 11 is slidably arranged in the column groove 16, and a first ring plate 19 is integrally formed on the positioning rod 11, and a second ring plate 20 is fixed in the column groove 16. The first ring plate 19 abuts against the second ring plate 20 to limit the positioning rod 11 from leaving the column groove 16, and a spring 17 is installed in the column groove 16, one end of the spring 17 is fixed to the positioning plate 12, and the other end is fixed to the first ring plate 19 on the corresponding positioning rod 11.
[0043] When the mounting base 2 slides to a suitable position, the positioning rod 11 is slid so that the positioning rod 11 is inserted into the corresponding positioning hole 13. At this time, the anti-slip plate 14 is inserted into the corresponding matching hole 15. During this process, the spring 17 is stretched and deformed, and then the anti-slip plate 14 can be rotated, and the positioning rod 11 is thereby rotated in the column groove 16. The anti-slip plate 14 can be rotated to be inserted into the card groove 18. Under the pulling action of the spring 17, the anti-slip plate 14 will maintain contact with the positioning plate 12 and its sliding direction close to the column groove 16 is restricted, thereby improving the stability of the positioning rod 11 when it is inserted into the positioning hole 13, and preventing the positioning rod 11 from being separated from the positioning groove.
[0044] Reference Figure 1and Figure 2 A first magnetic block 25 is fixed on the shell cover 5, a second magnetic block 26 is fixed on the top of one side of the shell body 1, and another second magnetic block 26 is fixed on the other side of the shell body 1. The two second magnetic blocks 26 are magnetically attracted to the first magnetic block 25. When the shell cover 5 is rotated to close the shell body 1, the first magnetic block 25 is attracted to one second magnetic block 26. When the shell cover 5 is rotated to open the shell body 1, the first magnetic block 25 is attracted to the other second magnetic block 26, thereby facilitating the closing or opening of the shell body 1, and further improving the convenience of the chalk box during use.
[0045] The implementation principle of a chalk box in the embodiment of the present application is as follows: when using the chalk box to place chalks, the bottom end of the chalk is vertically inserted into the slot 3, so that multiple chalks are vertically placed in the slot 3; during the use of the chalk box, the shell cover 5 rotates to expose the internal space of the shell 1, and then the sliding mounting seat 2 can drive the slot 3 to drive the chalk thereon to be exposed, and then the position of the mounting seat 2 is fixed by the fixing piece, so that it is convenient for the user to take the chalk for use. After the user has used the chalk, the chalk can be reinserted into the corresponding slot 3, thereby avoiding that chalks of different lengths are mixed and placed in the chalk box in disorder, which causes the chalk to break due to instability; and this method is also beneficial to the subsequent use of the user, by avoiding the chalks from being mixed in the chalk box, and thus avoiding the user from approaching the chalk box to search, thereby preventing the user from inhaling chalk dust in the process of turning over the chalk.
[0046] In addition, when the chalk is placed in the slot 3, the excess chalk dust carried and stained on the chalk will leak to the bottom of the shell 1 through the first powder leakage hole 4, and when the shell cover 5 is rotated to close the shell 1, that is, the chalk box is placed without being used, the adsorption sponge 6 on the inside of the shell 1 can adsorb the chalk dust floating in the shell 1, thereby preventing the chalk dust from overflowing when the chalk box is subsequently punched in and used again, causing the user to inadvertently inhale it.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A chalk box, characterized in that: The invention comprises a shell (1), a mounting seat (2) is vertically slidably arranged in the shell (1), a plurality of slots (3) are provided on the mounting seat (2), the slots (3) are used for vertically inserting the bottom of the chalk, and a fixing member for fixing the position of the mounting seat (2) on the shell (1) is provided on the shell (1); a first powder leakage hole (4) connected to the slots (3) is provided on the mounting seat (2), and a shell cover (5) is hingedly connected to the top of the shell (1). An adsorption sponge (6) is arranged on the inner side of the shell cover (5); a first sliding groove (9) arranged vertically is provided on the shell (1); the fixing member comprises a guide block (10) slidably arranged in the first sliding groove (9); a positioning rod (11) is slidably arranged on the guide block (10); a positioning plate (12) is arranged on the shell (1); a plurality of positioning holes (13) are vertically provided on the positioning plate (12); the positioning holes (13) are used for inserting the positioning rod (11); The positioning rod (11) is provided with an anti-slip plate (14), the positioning hole (13) is provided with a matching hole (15) for inserting the anti-slip plate (14), the guide block (10) is provided with a column groove (16) coaxial with the positioning rod (11), the positioning rod (11) is slidably arranged in the column groove (16), and a spring (17) connected to one end of the positioning rod (11) away from the anti-slip plate (14) is arranged in the column groove (16); the anti-slip A plurality of slots (18) are provided on the side of the plate (14) facing away from the positioning rod (11), each slot (18) is connected to one of the positioning holes (13) and is used for the anti-slip plate (14) to be inserted therein; a first ring plate (19) is provided on the positioning rod (11), and a second ring plate (20) is provided in the column groove (16); the first ring plate (19) abuts against the second ring plate (20) to limit the positioning rod (11) from being detached from the column groove (16).
2. A chalk box according to claim 1, characterized in that: The mounting seat (2) is provided with a plurality of guide grooves (7), each guide groove (7) is connected to a slot (3), and the cross section of the guide groove (7) gradually increases in a direction away from the corresponding slot (3).
3. A chalk box according to claim 1, characterized in that: The inner wall of the slot (3) is provided with a sponge layer (8).
4. A chalk box according to claim 1, characterized in that: A second vertically arranged slide groove (21) is provided in the housing (1), and a sliding block (22) is provided on the mounting seat (2). The sliding block (22) is located in the second slide groove (21) and is slidably matched with the second slide groove (21).
5. A chalk box according to claim 1, characterized in that: A powder collecting drawer (23) is slidably provided at the bottom of the shell (1), and the powder collecting drawer (23) is communicated with the bottom space of the shell (1).