Liquid spraying blackboard eraser

Abstract

A liquid spraying blackboard eraser comprises a shell and a liquid spraying bottle installed in the shell. The shell comprises an upper cover and a base which are connected with each other, and an open slot is formed in one side of the upper cover; a quick release structure is arranged between the side, provided with the opening groove, of the upper cover and the base, the quick release structure comprises a push button which is arranged in the opening groove in a sliding mode, and the push button comprises a limiting part; the limiting step is arranged on the upper cover and located in the opening groove; the push button can slide to an unlocking position or an initial position; when the push button is located at the initial position, the limiting part of the push button is located above the limiting step and abuts against the limiting step so as to prevent the upper cover from being separated from the base. And when the push button slides to the unlocking position, the limiting part of the push button is separated from the limiting step, so that the upper cover can be separated from the base. The liquid spraying blackboard eraser is convenient to disassemble and not prone to damage.

Description

Technical Field

[0001] This utility model relates to the field of teaching stationery technology, specifically to a spray-on eraser. Background Technology

[0002] In teaching or meetings, it is often necessary to record some content on a whiteboard. However, the writing on the whiteboard tends to solidify on the surface after a period of time. To remove solidified ink stains from the whiteboard, a spray eraser with a built-in spray bottle has been developed. When it is necessary to wipe the solidified ink stains on the whiteboard surface, pressing the spray bottle wets the solidified ink stains, achieving a better erasing effect.

[0003] Chinese utility model patent CN217022011U discloses a spray-on wiper, the structure of which is as follows: Figure 1 As shown, the device includes a connecting housing, a wiping plate 1a, and a spray bottle 2a. The spray bottle 2a has a nozzle 3a with a button 4a. The connecting housing includes a detachably connected first housing 5a and second housing 6a. The first housing 5a has a notch 7a, a snap-fit ​​protrusion 8a, and a snap-fit ​​groove 9a on the snap-fit ​​protrusion 8a. The second housing 6a has a snap-fit ​​recess and a snap-fit ​​block on the snap-fit ​​recess. When installing the connecting housing, the first housing 5a and second housing 6a are closed, so that the snap-fit ​​protrusion 8a is inserted into the snap-fit ​​recess and the snap-fit ​​block is inserted into the snap-fit ​​groove 9a. When disassembling the connecting housing, tools or fingers are used to pry open the first housing 5a and second housing 6a by inserting them into the notch 7a, thereby disengaging the snap-fit ​​block from the snap-fit ​​groove 9a.

[0004] However, the existing spray wipes have the following technical problems: when it is necessary to disassemble the connecting housing to replenish the liquid in the spray bottle 2a, tools or fingers must be used to pry open the first housing 5a and the second housing 6a, which is very difficult to remove and can easily damage the product. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a spray plate wipe that is easy to remove and does not easily damage the product.

[0006] The technical solution of this utility model is: a spray wiper, comprising a housing and a spray bottle installed inside the housing; the housing includes an upper cover and a base connected to each other, and an opening groove is provided on one side of the upper cover; a quick-release structure is provided between the side of the upper cover with the opening groove and the base, the quick-release structure including...

[0007] A push button is slidably disposed in the opening slot, the push button including a limiting part;

[0008] A limiting step is provided on the upper cover and located in the opening groove;

[0009] The push button can be slid to the unlock position or the initial position; when the push button is in the initial position, the limiting part of the push button is located above the limiting step and abuts against it to prevent the top cover and the base from separating; when the push button is slid to the unlock position, the limiting part of the push button separates from the limiting step, thereby separating the top cover and the base.

[0010] The working principle of this new type of spray-on scouring pad is as follows:

[0011] During normal use, the limiting part of the push button is limited on the limiting step of the upper cover, preventing the push button from being pressed down and thus preventing the upper cover from separating from the base. When it is necessary to disassemble the housing to replenish the liquid in the spray bottle, push the push button to the unlock position, and the limiting part of the push button will disengage from the limiting step. At this time, press down the push button, and the push button can be separated from the upper cover through the opening groove, thereby realizing the separation of the upper cover from the base.

[0012] With the above structure, this utility model has the following advantages:

[0013] When removing the housing of this spray plate wiper, simply push the push button to the unlock position to release the limit part of the push button from the upper cover. Then press the push button down to separate the push button from the upper cover, thereby separating the upper cover from the base. The entire removal process only requires one hand to unlock, which is very convenient and labor-saving. No brute force is required, and it is not easy to damage the product.

[0014] Preferably, the quick-release structure also includes a button, one end of which is linked to the push button, and the other end of which is linked to the nozzle of the spray bottle. This design allows the push button to not only perform a quick-release action but also, in conjunction with the button, to perform a pressing action on the nozzle. The overall structure is ingeniously designed, integrating and reusing different functions, while also simplifying the overall structure.

[0015] Preferably, the push button further includes a sliding part and a pressing part disposed on one side of the sliding part; the opening groove extends from the upper cover to the base, the sliding part of the push button is slidably connected in the opening groove of the upper cover, and the pressing part of the push button is linked to the button through the opening groove of the base; the limiting step is disposed at the end of the opening groove. This arrangement is reasonable, facilitating both the sliding of the push button within the opening groove and the pressing of the push button on the button. The limiting step at the end of the opening groove allows the push button to slide to the initial position when pushed inwards and to slide to the unlocked position when pushed outwards.

[0016] Preferably, an elastic reset member is also included, disposed between the pressing part of the push button and the button, to drive the push button to reset and limit the limiting part on the limiting step of the upper cover. When the button is stationary, the elastic reset member deforms to allow the pressing part to move outward relative to the button. This configuration allows the push button to automatically reset, facilitates repeated water spraying and pressing, ensures a reliable connection between the upper cover and the base, and prevents accidental operation. Furthermore, when the push button is pulled out, the button does not activate, thus preventing water spraying during removal.

[0017] Preferably, the pressing part of the push button has a limiting post on the side near the button, the limiting post passing through the end of the button, and the elastic reset member sleeved on the limiting post. One end of the elastic reset member abuts against the end of the button, and the other end abuts against the limiting post, so that the pressing part of the push button is pressed tightly against the end of the button. This arrangement simplifies the linkage structure between the pressing part of the push button and the end of the button, and the elastic reset member ensures a tight fit between the pressing part of the push button and the end of the button, thereby making the pressing of the spray bottle more reliable.

[0018] Preferably, the end of the limiting post is provided with a fastener, one end of the elastic reset member abuts against the end of the button and the other end abuts against the fastener on the limiting post. This arrangement not only facilitates the installation of the limiting post and the elastic reset member, but also allows for adjustment of the elastic force of the elastic reset member.

[0019] Preferably, the sliding part of the push button is slidably connected to the side of the button. This arrangement further ensures the sliding direction of the push button, allowing it to reliably be positioned against or disengage from the top cover.

[0020] Preferably, one of the sliding portion of the push button and the side of the button is provided with a groove, and the other is provided with a slider. The sliding portion of the push button is slidably connected to the side of the button through the groove and the slider. This sliding connection structure between the push button and the button is simple and compact.

[0021] Preferably, the limiting part is disposed at one end of the sliding part near the limiting step, and the limiting part and the side of the button form a limiting groove; when the push button is pushed inward, the slider slides in the sliding groove and the limiting step slides in the limiting groove. This arrangement not only further restricts the sliding direction of the push button, but also ensures that when liquid is sprayed, the limiting part of the push button can be reliably limited on the limiting step of the upper cover, so that the upper cover and the base are reliably connected.

[0022] Preferably, the top cover and the base are hinged or detachably connected via a snap-fit ​​or plug-in structure on opposite sides of the quick-release structure. This arrangement allows the other side of the top cover to also separate from the base, making it easier to remove the spray bottle.

[0023] Preferably, the plug-in structure includes a positioning post disposed on one of the upper cover and the base, and a positioning hole disposed on the other. This plug-in structure is simple and easy to assemble and disassemble.

[0024] Preferably, the nozzle is provided with a spray pipe, and the base is provided with a spray nozzle. The spray pipe passes through the button and is aligned with the spray nozzle. This arrangement not only allows the spray pipe to spray water mist to the desired location, but also uses the spray pipe to limit the nozzle and the button together. Attached image description:

[0025] Figure 1 This is a schematic diagram of the structure of an existing spray plate wiper;

[0026] Figure 2 This is a schematic diagram of the structure of the spray plate wiper of this utility model in its initial position;

[0027] Figure 3 This is another structural diagram of the spray plate wiper of this utility model in its initial position;

[0028] Figure 4 This is a top view of the spray plate wiper of this utility model in its initial position;

[0029] Figure 5 for Figure 4 Cross-sectional view at the midline AA′;

[0030] Figure 6 This is a schematic diagram of the structure of the liquid spraying plate wiper in the unlocked position.

[0031] Figure 7 This is a cross-sectional view of the spray plate wiper of this utility model in the unlocked position;

[0032] Figure 8 This is a schematic diagram of the structure of the spray plate of this utility model during spraying;

[0033] Figure 9 This is a cross-sectional view of the spray plate of this utility model during spraying.

[0034] Figure 10 This is a schematic diagram of the structure of the spray plate wiper after concealing the push button of this utility model;

[0035] Figure 11 This is a schematic diagram of the structure of the spray plate wiper after concealing the top cover of this utility model;

[0036] Figure 12 This is a schematic diagram of the structure of the spray plate wiper after concealing the base;

[0037] In the existing technical drawings: 1a-wiping plate, 2a-spray bottle, 3a-spray head, 4a-button, 5a-first housing, 6a-second housing, 7a-groove, 8a-snap-fitting protrusion, 9a-snap-fitting groove;

[0038] In the figures of this utility model: 1-shell, 2-spray bottle, 3-top cover, 4-base, 5-nozzle, 6-button, 7-quick release structure, 8-push button, 9-sliding part, 10-pressing part, 11-opening groove, 12-limiting step, 13-elastic reset component, 14-limiting post, 15-fastener, 16-sliding groove, 17-slider, 18-limiting groove, 19-positioning post, 20-positioning hole, 21-spray pipe, 22-spray nozzle, 23-observation window, 24-limiting structure of spray bottle, 25-limiting structure of nozzle, 26-sliding structure of button, 27-finger position, 28-accommodating groove, 29-limiting part, 30-wiping cloth. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0040] Example:

[0041] like Figure 2-12 As shown, a spray wiper includes a housing 1 and a spray bottle 2 installed inside the housing 1; the housing 1 includes an upper cover 3 and a base 4 connected to each other, and an opening groove 11 is provided on one side of the upper cover 3; a quick-release structure 7 is provided between the side of the upper cover 3 with the opening groove 11 and the base 4, the quick-release structure 7 including...

[0042] Push button 8 is slidably disposed in the opening slot 11, and push button 8 includes a limiting part 29;

[0043] A limiting step 12 is provided on the upper cover 3 and located in the opening groove 11;

[0044] The push button 8 can be slid to the unlock position or the initial position; when the push button 8 is in the initial position, the limiting part 29 of the push button 8 is located above the limiting step 12 and abuts against it to prevent the top cover 3 and the base 4 from separating; when the push button 8 is slid to the unlock position, the limiting part 29 of the push button 8 separates from the limiting step 12 so that the top cover 3 and the base 4 can be separated.

[0045] In this embodiment, when removing the housing 1, the spray plate wiper only needs to push the push button 8 to the unlock position to release the limiting part 29 of the push button 8 from the upper cover 3. Then, by pressing down the push button 8, the push button 8 can be separated from the upper cover 3, thereby realizing the separation of the upper cover 3 from the base 4. The entire removal process only requires one hand to unlock, which is very convenient and labor-saving. It does not require brute force and is not easy to damage the product.

[0046] The quick-release structure 7 also includes a button 6, one end of which is linked to the push button 8, and the other end of which is linked to the nozzle 5 of the spray bottle 2. This design allows the push button 8 to not only perform a quick-release action, but also to perform a pressing action on the nozzle 5 through its cooperation with the button 6. The overall structure is ingeniously designed, with different functions integrated and reused, and the structure is relatively simple.

[0047] The push button 8 also includes a sliding part 9 and a pressing part 10 disposed on one side of the sliding part 9; the opening groove 11 extends from the upper cover 3 to the base 4, the sliding part 9 of the push button 8 is slidably connected in the opening groove 11 of the upper cover 3, and the pressing part 10 of the push button 8 is linked to the button 6 through the opening groove 11 of the base 4; the limiting step 12 is disposed at the end of the opening groove 11. This arrangement is reasonable, which facilitates the sliding of the push button 8 in the opening groove 11 by using the sliding part 9, and facilitates the pressing of the push button 8 on the button 6 by using the pressing part 10. The limiting step 12 is disposed at the end of the opening groove 11 so that the push button 8 can slide to the initial position when pushed inward, and slide to the unlocked position when pushed outward.

[0048] It also includes an elastic reset member 13, which is disposed between the pressing part 10 of the push button 8 and the button 6, so as to drive the push button 8 to reset and limit the limiting part 29 on the limiting step 12 of the upper cover 3. When the button 6 is stationary, the elastic reset member 13 deforms to allow the pressing part 10 to move outward relative to the button 6. This setting allows the push button 8 to automatically reset, which is convenient for repeated water spraying and pressing, ensures a reliable connection between the upper cover 3 and the base 4, and prevents accidental operation. At the same time, when the push button 8 is pulled out, the button 6 does not move, which can also realize that water is not sprayed during the removal process.

[0049] The pressing part 10 of the push button 8 has a limiting post 14 on the side near the button 6. The limiting post 14 passes through the end of the button 8. The elastic reset member 13 is sleeved on the limiting post 14. One end of the elastic reset member 13 abuts against the end of the button 6 and the other end abuts against the limiting post 14, so that the pressing part 10 of the push button 8 is pressed tightly against the end of the button 6. In this embodiment, the elastic reset member 13 is a compression spring. This arrangement makes the linkage structure between the pressing part 10 of the push button 8 and the end of the button 6 relatively simple, and the elastic reset member 13 can make the pressing part 10 of the push button 8 and the end of the button 6 tightly fit together, thereby making the pressing of the spray bottle 2 more reliable.

[0050] The end of the limiting post 14 is provided with a fastener 15. One end of the elastic reset member 13 abuts against the end of the button 6 and the other end abuts against the fastener 15 on the limiting post 14. In this embodiment, the fastener 15 includes a screw and a washer. This arrangement not only facilitates the installation of the limiting post 14 and the elastic reset member 13, but also allows for adjustment of the elastic force of the elastic reset member 13.

[0051] The sliding part 9 of the push button 8 is slidably connected to the side of the button 6. This setting can further ensure the sliding direction of the push button 8, so that the push button 8 can be reliably limited or disengaged from the upper cover 3.

[0052] The sliding part 9 of the push button 8 and the side of the button 6 are both provided with a groove 16 and a slider 17, respectively. The sliding part 9 of the push button 8 is slidably connected to the side of the button 6 through the groove 16 and the slider 17. In this embodiment, the slider 17 is provided on the sliding part 9 of the push button 8, and the groove 16 is provided on the side of the button 6. The cross-section of the groove 16 is T-shaped. This sliding connection structure between the push button 8 and the button 6 is simple and compact.

[0053] A limiting part 29 is disposed at one end of the sliding part 9 near the limiting step 12, and the limiting part 29 and the side of the button 6 form a limiting groove 18; when the push button 8 is pushed inward, the slider 17 slides in the sliding groove 16 and the limiting step 12 slides in the limiting groove 18; in this embodiment, the limiting groove 18 is U-shaped; when the push button 8 is reset, there is a gap between the end of the limiting part 29 and the end of the opening groove 11, and this gap matches the pressing stroke of the nozzle 5. This setting not only further restricts the sliding direction of the push button 8, but also ensures that when spraying liquid, the limiting part 29 of the push button 8 can be reliably limited on the limiting step 12 of the upper cover 3, so that the upper cover 3 and the base 4 are reliably connected.

[0054] The top cover 3 and the base 4 are hinged on opposite sides of the quick-release structure 7 or detachably connected via a snap-fit ​​or plug-in structure. This arrangement allows the other side of the top cover 3 to also separate from the base 4, making it easier to remove the spray bottle 2.

[0055] The plug-in structure includes a positioning post 19 located on one of the upper cover 3 and the base 4, and a positioning hole 20 located on the other. This plug-in structure is simple and easy to assemble and disassemble.

[0056] The spray bottle 2 is confined within the housing 1, and the button 6 is slidably connected between the base 4 and the nozzle 5 of the spray bottle 2, with the nozzle 5 confined on the button 6. In this embodiment, the limiting structure 24 of the spray bottle, the limiting structure 25 of the nozzle, and the sliding structure 26 of the button can all be achieved using existing technologies. This layout is reasonable and can ensure that the button 6 can reliably press the nozzle 5 of the spray bottle 2.

[0057] The nozzle 5 is equipped with a spray pipe 21, and the base 4 is equipped with a spray nozzle 22. The spray pipe 21 passes through the button 6 and is aligned with the spray nozzle 22. This arrangement not only allows water mist to be sprayed to the desired location using the spray pipe 21, but also uses the spray pipe 21 to further limit the nozzle 5 and the button 6 together.

[0058] The spray bottle 2 has a transparent body and an observation window 23 on its top cover 3. This feature allows for easy monitoring of the remaining liquid level in the spray bottle 2, enabling timely replenishment of the liquid.

[0059] In this embodiment, the front side of the base 4 extends upward in an L-shape, and the quick-release structure 7 is provided on the front side of the upper cover 3 and the base 4; the push button 8 and the opening slot 11 are both L-shaped, and the opening slot 11 extends from the top of the upper cover 3 to the front side of the base 4; the sliding part 9 slides back and forth in the opening slot 11 where the upper cover 3 is located, and the pressing part 10 presses back and forth in the opening slot 11 where the base 4 is located; the left and right sides of the upper cover 3 are provided with inwardly recessed finger positions 27 for easy gripping; the rear side of the upper cover 3 is provided with a positioning post 19, and the rear side of the base 4 is provided with a positioning hole 20. After the upper cover 3 is closed on the base 4, the positioning post 19 is inserted into the positioning hole 20 and located in the cavity formed by the upper cover 3 and the base 4; the bottom of the base 4 is provided with a receiving groove 28, and the wiping cloth 30 is installed in the receiving groove 28. Figure 7 The diagram illustrates the installation position of the wiping cloth 30; in this embodiment, the directions of up, down, left, right, front, and back are... Figure 2 As the standard.

[0060] The working principle of the spray-on stencil in this embodiment is as follows:

[0061] During normal use, push button 8 is in the initial position, such as... Figures 2-5 As shown, the pressing part 10 of the push button 8 is connected to the base 4, and the limiting part 29 of the push button 8 is limited on the limiting step 12 of the upper cover 3, preventing the push button 8 from being pressed down, thus preventing the upper cover 3 from being separated from the base 4; when picking it up, the thumb is in the finger position 27 on the left side of the upper cover 3, the ring finger and little finger are in the finger position 27 on the right side of the upper cover 3, and the index finger is on the push button 8; when spraying liquid is needed, push the push button 8 inward, as shown. Figure 8 and Figure 9 As shown, the slider 17 of the sliding part 9 slides in the groove 16 on the side of the button 6, and the limiting step 12 slides in the limiting groove 18, so that the limiting part 29 is reliably limited on the limiting step 12 and will not separate from the upper cover 3. At the same time, the pressing part 10 drives the button 6 to press the nozzle 5 of the spray bottle 2 through the elastic reset member 13. The nozzle 5 sprays water mist through the spray pipe 21 and the spray nozzle 22 to wet the wiping cloth 30. After spraying, the push button 8 is released. The push button 8 is reset by the elastic reset member 13 to facilitate the next spraying. When it is necessary to disassemble the housing 1 to replenish the liquid in the spray bottle 2, push the push button 8 outward to the unlock position, as shown. Figure 6 and Figure 7As shown, when the limiting part 29 disengages from the limiting step 12, the push button 8 is pressed down, and the sliding part 9 can be separated from the upper cover 3 through the opening groove 11. Therefore, the side of the upper cover 3 with the quick-release structure 7 is separated from the base 4, while the other side of the upper cover 3 is inserted into the base 4 in this embodiment. By pulling out the upper cover 3 with a little force, the positioning pin 19 can be disengaged from the positioning hole 20, and the other side of the upper cover 3 can also be separated from the base 4. When reinstalling, align the positioning pin 19 of the upper cover 3 with the positioning hole 20 of the base 4 and press it down, so that one side of the upper cover 3 can be inserted into the base 4. Then push the push button 8 outward and press down the upper cover 3 at the same time, so that the sliding part 9 can pass through the opening groove 11, release the push button 8, and the push button 8 resets to limit the limiting part 29 on the limiting step 12. At this time, the other side of the upper cover 3 is also connected to the base 4.

Claims

1. A spray wiper, comprising a housing (1) and a spray bottle (2) installed within the housing (1); the housing (1) comprises an upper cover (3) and a base (4) connected to each other, and an opening slot (11) is provided on one side of the upper cover (3); characterized in that: A quick-release structure (7) is provided between the side of the upper cover (3) with the opening groove (11) and the base (4), the quick-release structure (7) including A push button (8) is slidably disposed in the opening slot (11), the push button (8) including a limiting part (29); A limiting step (12) is provided on the upper cover (3) and located in the opening slot (11); The push button (8) can be slid to the unlock position or the initial position; when the push button (8) is in the initial position, the limiting part (29) of the push button (8) is located above the limiting step (12) and abuts against it to prevent the top cover (3) and the base (4) from separating; when the push button (8) is slid to the unlock position, the limiting part (29) of the push button (8) separates from the limiting step (12) so that the top cover (3) and the base (4) can be separated.

2. The spray squeegee according to claim 1, characterized in that: The quick-release structure (7) also includes a button (6), one end of which is linked to the push button (8), and the other end of which is linked to the nozzle (5) of the spray bottle (2).

3. The spray squeegee according to claim 2, characterized in that: The push button (8) also includes a sliding part (9) and a pressing part (10) disposed on one side of the sliding part (9); the opening groove (11) extends from the upper cover (3) to the base (4), the sliding part (9) of the push button (8) is slidably connected in the opening groove (11) of the upper cover (3), and the pressing part (10) of the push button (8) is linked to the button (6) through the opening groove (11) of the base (4); the limiting step (12) is disposed at the end of the opening groove (11).

4. A spray squeegee according to claim 3, characterized in that: It also includes an elastic reset member (13), which is disposed between the pressing part (10) of the push button (8) and the button (6) to drive the push button (8) to reset so that the limiting part (29) is limited on the limiting step (12) of the upper cover (3). When the button (6) is stationary, the elastic reset member (13) deforms so that the pressing part (10) can move outward relative to the button (6).

5. A spray squeegee according to claim 4, characterized in that: The pressing part (10) of the push button (8) has a limiting post (14) on the side near the button (6). The limiting post (14) passes through the end of the button (6). The elastic reset member (13) is sleeved on the limiting post (14). One end of the elastic reset member (13) abuts against the end of the button (6) and the other end abuts against the limiting post (14), so that the pressing part (10) of the push button (8) is pressed tightly against the end of the button (6).

6. A spray squeegee according to claim 3, characterized in that: The sliding part (9) of the push button (8) is slidably connected to the side of the button (6).

7. A spray squeegee according to claim 6, characterized in that: The sliding part (9) of the push button (8) and the side of the button (6) are provided with a groove (16) and a slider (17), respectively. The sliding part (9) of the push button (8) is slidably connected to the side of the button (6) through the groove (16) and the slider (17).

8. A spray-on scrubber according to claim 7, characterized in that: The limiting part (29) is disposed at one end of the sliding part (9) near the limiting step (12), and the limiting part (29) and the side of the button (6) form a limiting groove (18); when the push button (8) is pushed inward, the slider (17) slides in the slide groove (16) and the limiting step (12) slides in the limiting groove (18).

9. A spray stencil according to claim 1, characterized in that: The upper cover (3) and the base (4) are hinged on opposite sides of the quick-release structure (7) or detachably connected by a snap-fit ​​structure or a plug-in structure.

10. A spray squeegee according to claim 9, characterized in that: The plug-in structure includes a positioning post (19) disposed on one of the upper cover (3) and the base (4) and a positioning hole (20) disposed on the other.

Images