Weighing paper storage box with paper feeding function

Abstract

The utility model provides a kind of weighing paper storage box with paper shifting function, including box body component, elastic lifting mechanism and paper shifting mechanism, the box body component includes box body and pluggable top cover, the pluggable top cover is slidably inserted in the sliding slot of box body upper portion opening, the elastic lifting mechanism includes the elastic support component of vertical being located in box body inside bottom and the weighing paper supporting plate of fixed connection with the upper end of elastic support component, and the weighing paper supporting plate vertically slidingly connected in box body;Groove is equipped between the front side plate of the sliding slot with the box body;The paper shifting mechanism is arranged on pluggable top cover for driving the weighing paper on weighing paper supporting plate along groove realizes single output.The utility model can effectively solve the problem of waste and pollution caused by easily taking out multiple sheets together in traditional taking mode.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment technology, specifically to a weighing paper storage box with a paper-dispensing function. Background Technology

[0002] Currently, most laboratory weighing papers are stored directly in their original packaging or boxes, which is inconvenient to open and close. For example, using the original packaging may require tearing or unpacking, which is cumbersome, and resealing may not guarantee a good seal. Secondly, it's easy to grab multiple sheets at once, leading to waste and potentially affecting the accuracy of experimental results in a laboratory environment if multiple sheets are used simultaneously. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a weighing paper storage box with a paper-dispensing function.

[0004] The specific technical solution is as follows: A weighing paper storage box with a paper-dispensing function includes: a box body assembly, an elastic lifting mechanism, and a paper-dispensing mechanism. The box body assembly includes a box body and a pluggable top cover. The pluggable top cover is slidably inserted into a groove on the upper part of the box body. The elastic lifting mechanism includes an elastic support assembly vertically disposed at the bottom of the inner side of the box body and a weighing paper tray fixedly connected to the upper end of the elastic support assembly. The weighing paper tray is vertically slidably connected to the box body. A groove is provided between the groove and the front side plate of the box body. The paper-dispensing mechanism is disposed on the pluggable top cover and is used to drive the weighing paper on the weighing paper tray to output a single sheet along the groove.

[0005] Optionally, the elastic support assembly includes an outer sleeve, a support spring, and an inner sleeve. The lower end of the outer sleeve is fixedly connected to the bottom of the box body, the inner sleeve is slidably connected inside the outer sleeve, and the upper end of the outer sleeve is fixedly connected to the lower end of the weighing paper tray. The two ends of the support spring are respectively connected to the bottom of the inner side of the outer sleeve and the upper part of the inner side of the inner sleeve to achieve symmetrical support for the weighing paper tray.

[0006] Optionally, the inner wall of the outer sleeve is provided with a guide groove, and the outer wall of the inner sleeve is provided with a guide protrusion that matches the guide groove, in order to limit the sliding direction of the inner sleeve within the outer sleeve.

[0007] Optionally, the paper-feeding mechanism includes two wheel supports, a rotating shaft, a paper-feeding wheel, an elastic paper-feeding plate, and a friction block. The pluggable top cover has a U-shaped opening, and the two wheel supports are respectively located on both sides of the U-shaped opening on the pluggable top cover. The rotating shaft is rotatably connected between the two wheel supports, the paper-feeding wheel is fixedly installed on the rotating shaft, the elastic paper-feeding plate is evenly distributed at equal distances along the circumference of the paper-feeding wheel, and the friction block is installed on the elastic paper-feeding plate to pass through the U-shaped opening and abut against the upper surface of the weighing paper.

[0008] Optionally, the outer surface of the friction block is a rough surface.

[0009] Optionally, each of the two dial brackets has a manual dial fixedly connected to the rotating shaft on its opposite outer side.

[0010] Optionally, the elastic paper-pulling piece is made of a corrugated spring steel sheet.

[0011] Optionally, the outer circumference of the wheel is provided with anti-slip protrusions.

[0012] Optionally, the height of the front panel of the box is lower than the opening position of the sliding grooves on both sides, and the height difference between the front panel and the sliding groove is not less than the thickness of a single sheet of weighing paper.

[0013] Optionally, the box body is made of transparent PP material.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: In this invention, the pluggable top cover and the box body are slidably connected by a sliding groove. Compared with traditional weighing paper packaging or ordinary packaging boxes, its opening and closing operation is more convenient and faster. Moreover, when closed, it can effectively prevent external dust and other impurities from entering the box and contaminating the weighing paper, thus better protecting the quality of the weighing paper. The groove between the sliding groove and the front side plate of the box body provides a dedicated channel for the output of single sheets of weighing paper. This structural design makes the taking out of the weighing paper more orderly and convenient, fundamentally changing the way weighing paper is stored and taken out, making it more suitable for the special needs of taking out weighing paper in laboratory and other scenarios. The elastic lifting mechanism, consisting of an elastic support component and a weighing paper tray, can automatically adjust the height of the weighing paper tray according to the weight of the weighing paper. In traditional weighing paper storage methods, it is easy to grab multiple sheets at once when retrieving them. However, this utility model, through its elastic lifting mechanism, can always keep the weighing paper at a suitable height regardless of the quantity, facilitating the paper-dispensing mechanism to perform single-sheet dispensing operations and improving the accuracy of weighing paper retrieval. Due to the presence of the elastic support component, the weighing paper is kept in a more orderly state within the box, avoiding the situation of grabbing multiple sheets at once due to the chaotic stacking of weighing paper, reducing waste of weighing paper, and also improving the accuracy of experimental operations. The paper-dispensing mechanism, through its specific structural design, including the coordinated action of components such as the dispensing wheel bracket, rotating shaft, dispensing wheel, elastic dispensing plate, and friction block, can accurately dispense a single sheet of weighing paper. In traditional weighing paper dispensing methods, multiple sheets of weighing paper are easily dispensed at the same time. This invention effectively solves this problem, avoiding waste and contamination of weighing paper, and is particularly suitable for use in environments such as laboratories where precise measurement of weighing paper usage is required. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the weighing paper storage box with paper-dispensing function of this utility model; Figure 2 This is a cross-sectional view of the elastic lifting mechanism in the weighing paper storage box with paper-pulling function of this utility model. Figure 3 This is a cross-sectional view of the elastic support component in the weighing paper storage box with paper-pulling function of this utility model. Figure 4 This is an exploded structural diagram of the elastic support component in the weighing paper storage box with paper-pulling function of this utility model.

[0016] In the diagram: 1. Box assembly; 11. Box body; 110. Slide groove; 111. Groove; 112. Front side panel; 12. Removable top cover; 120. U-shaped opening; 2. Elastic lifting mechanism; 21. Elastic support assembly; 211. Outer sleeve; 212. Support spring; 213. Inner sleeve; 22. Weighing paper tray; 3. Paper feeding mechanism; 31. Divider wheel bracket; 32. Rotating shaft; 33. Paper feeding wheel; 34. Elastic paper feeding piece; 35. Friction block; 36. Manual rotating wheel; 37. Anti-slip protrusion; 4. Weighing paper. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0020] The weighing paper storage box with paper-dispensing function provided in this utility model refers to... Figures 1-4 The device includes a box assembly 1, an elastic lifting mechanism 2, and a paper feeding mechanism 3. The box assembly 1 includes a box body 11 and a pluggable top cover 12. The pluggable top cover 12 is slidably inserted into a groove 110 opened on the upper part of the box body 11. The elastic lifting mechanism 2 includes an elastic support component 21 vertically disposed on the bottom inner side of the box body 11 and a weighing paper tray 22 fixedly connected to the upper end of the elastic support component 21. The weighing paper tray 22 is vertically slidably connected to the box body 11. A groove 111 is provided between the groove 110 and the front side plate 112 of the box body 11. The paper feeding mechanism 3 is disposed on the pluggable top cover 12 and is used to drive the weighing paper 4 on the weighing paper tray 22 to output a single sheet along the groove 111.

[0021] Specifically, in this embodiment, the pluggable top cover 12 is slidably inserted into the groove 110 on the upper part of the box body 11, making the opening and closing of the box body 11 convenient and quick. When the weighing paper 4 is needed, the top cover can be easily opened, and when the weighing paper 4 is stored, it can be tightly closed to prevent external dust and other impurities from entering the box and contaminating the weighing paper 4. The groove 111 between the groove 110 and the front side plate 112 of the box body 11 provides a channel for the output of a single sheet of weighing paper 4. Traditional laboratory weighing paper 4 storage methods, such as directly using weighing paper 4 packaging or ordinary packaging boxes, may require tearing or unpacking the packaging, which is relatively troublesome. Moreover, the sealing performance cannot be well guaranteed when resealing. There is no structural design for the special handling requirements of weighing paper 4. However, the structure of the box body component 1 of this utility model fundamentally changes the way weighing paper 4 is stored, making it better integrated with the handling operation. The elastic support component 21 is vertically installed at the bottom inside the box 11. When weighing paper 4 is placed into the box 11, the weighing paper tray 22 will compress the elastic element in the elastic support component 21 downward under the action of gravity. As the weighing paper 4 is continuously removed, the weighing paper tray 22 will gradually rise under the action of the elastic restoring force of the elastic element, always keeping the weighing paper 4 at a suitable height, which facilitates the paper-pulling mechanism 3 to perform single-sheet paper-pulling operation. In the traditional weighing paper 4 storage method, due to the lack of such an elastic lifting structure, when the number of weighing paper 4 decreases, the remaining weighing paper 4 will accumulate at the bottom, making it easy to grab multiple sheets at once when taking them out. The elastic lifting mechanism 2 of this utility model effectively avoids this problem. Due to the restriction of the groove 111 and the weight of the weighing paper 4, the weighing paper 4 is pulled out one sheet at a time by the paper-pulling mechanism 3, effectively solving the problem of waste and pollution caused by taking out multiple sheets at the same time in the traditional method.

[0022] The elastic support assembly 21 includes an outer sleeve 211, a support spring 212, and an inner sleeve 213. The lower end of the outer sleeve 211 is fixedly connected to the bottom of the box body 11. The inner sleeve 213 is slidably connected inside the outer sleeve 211. The upper end of the outer sleeve 211 is fixedly connected to the lower end of the weighing paper tray 22. The two ends of the support spring 212 are respectively connected to the bottom inner side of the outer sleeve 211 and the upper inner side of the inner sleeve 213 to achieve symmetrical support for the weighing paper tray 22. In the initial state, when no weighing paper 4 is placed on the weighing paper tray 22, the support spring 212 is in a naturally extended state. At this time, the inner sleeve 213 is located at a certain position inside the outer sleeve 211. The lower end of the outer sleeve 211 is firmly fixed to the bottom of the box body 11. The connection between the upper end of the outer sleeve 211 and the lower end of the weighing paper tray 22 ensures that the weighing paper tray 22 is at an initial height. When the weighing paper 4 is placed on the weighing paper tray 22, the weight of the weighing paper 4 acts on the weighing paper tray 22. Since the upper end of the outer sleeve 211 is fixedly connected to the weighing paper tray 22, the weighing paper tray 22 will move downward, which will also drive the upper end of the outer sleeve 211 downward. As the inner sleeve 213 slides downward within the outer sleeve 211 due to its sliding connection with the outer sleeve 211, it slides downward under the weight of its own weight and the pressure transmitted by the weighing paper tray 22. During this process, the two ends of the support spring 212 are connected to the inner bottom of the outer sleeve 211 and the inner upper part of the inner sleeve 213, respectively. As the inner sleeve 213 slides downward within the outer sleeve 211, the support spring 212 is compressed, converting the gravitational potential energy of the weighing paper 4 into its own elastic potential energy for storage. This allows the entire elastic support assembly 21 to adaptively adjust the height of the weighing paper tray 22 according to the weight of the weighing paper 4. When the weighing paper 4 is removed from the weighing paper tray 22, as the weight of the weighing paper 4 decreases, the pressure on the support spring 212 decreases. This restoring force acts on the upper inner side of the inner sleeve 213, pushing the inner sleeve 213 to slide upward inside the outer sleeve 211. Since the upper end of the outer sleeve 211 is fixedly connected to the weighing paper tray 22, the upward sliding of the inner sleeve 213 will drive the weighing paper tray 22 to move upward, so that the remaining weighing paper 4 on the weighing paper tray 22 is always kept at a suitable height, which facilitates the paper-picking mechanism 3 to perform single-sheet paper picking operation.

[0023] The inner wall of the outer sleeve 211 is provided with a guide groove, and the outer wall of the inner sleeve 213 is provided with a guide protrusion that matches the guide groove, which is used to limit the sliding direction of the inner sleeve 213 within the outer sleeve 211. When the weighing paper 4 is placed on the weighing paper tray 22 and the inner sleeve 213 slides downward within the outer sleeve 211, the guide structure ensures that the sliding direction of the inner sleeve 213 is accurate. This allows the support spring 212 to be uniformly compressed in the vertical direction, avoiding the twisting or uneven force of the support spring 212 due to the skewness of the inner sleeve 213. Similarly, when the weighing paper 4 is removed and the inner sleeve 213 slides upward under the restoring force of the support spring 212, the guide structure ensures that the inner sleeve 213 can be reset in the correct direction, thereby allowing the weighing paper tray 22 to rise accurately to the appropriate height, ensuring good cooperation with the paper feeding mechanism 3.

[0024] The paper-feeding mechanism 3 includes two wheel supports 31, a rotating shaft 32, a paper-feeding wheel 33, an elastic paper-feeding piece 34, and a friction block 35. A U-shaped opening 120 is provided on the pluggable top cover 12. The two wheel supports 31 are respectively located on both sides of the U-shaped opening 120 on the pluggable top cover 12. The rotating shaft 32 is rotatably connected between the two wheel supports 31 through a bearing. The paper-feeding wheel 33 is fixedly installed on the rotating shaft 32. The elastic paper-feeding piece 34 is evenly distributed at equal distances along the periphery of the paper-feeding wheel 33. The friction block 35 is installed on the elastic paper-feeding piece 34 and is used to pass through the U-shaped opening 120 and abut against the upper surface of the weighing paper 4. Both outer sides of the two dial brackets 31 are provided with manual dial wheels 36 that are coaxially and fixedly connected to the rotating shaft 32. When the user manually rotates the manual dial wheel 36 on the outer side of the dial bracket 31, the power will be transmitted to the rotating shaft 32 through the dial bracket 31. Since the rotating shaft 32 and the dial bracket 31 are rotatably connected, and the paper-shifting wheel 33 is fixedly installed on the rotating shaft 32, the rotation of the manual dial wheel 36 will drive the rotating shaft 32 to rotate, and then drive the paper-shifting wheel 33 to rotate. During the rotation of the paper-shifting wheel 33, the elastic paper-shifting pieces 34 that are evenly distributed along the circumference will rotate together with the paper-shifting wheel 33. The friction blocks 35 on the elastic paper-shifting pieces 34 abut against the upper surface of the weighing paper 4 because they pass through the U-shaped opening 120. When the elastic paper-shifting pieces 34 rotate with the paper-shifting wheel 33, the friction blocks 35 will drive the weighing paper 4 that is in contact with them to move under the action of friction. Due to the elasticity of the elastic paper-pulling pieces 34, the friction block 35 can always maintain appropriate contact with the weighing paper 4, ensuring that the weighing paper 4 is not damaged due to excessive pressure, nor is it unable to move due to insufficient pressure. Moreover, since the elastic paper-pulling pieces 34 are evenly distributed at equal intervals, only one friction block 35 will effectively contact the topmost weighing paper 4 at a time and pull it out, thereby realizing the single-sheet weighing paper 4 pulling operation.

[0025] The outer surface of the friction block 35 is rough. The rough surface of the friction block 35 can increase the friction with the weighing paper 4, making the paper-pulling operation more reliable. The greater friction allows the friction block 35 to move the weighing paper 4 faster, thereby increasing the paper-pulling speed. In places such as laboratories where the weighing paper 4 needs to be used frequently, improving the paper-pulling efficiency can save operation time and improve work efficiency.

[0026] The flexible paper-pulling piece 34 is made of a corrugated spring steel sheet. This corrugated spring steel sheet allows the flexible paper-pulling piece 34 to better adapt to various conditions on the surface of the weighing paper 4, ensuring the accuracy of each sheet being pulled. The elasticity and adaptability of the corrugated spring steel sheet result in a more uniform stress distribution during paper pulling, reducing the possibility of damage caused by excessive local stress. This helps extend the service life of the flexible paper-pulling piece 34, thereby reducing the frequency of maintenance and replacement of parts and lowering operating costs.

[0027] The outer circumference of the rotary wheel is provided with anti-slip protrusions 37, which allow users to control the rotation of the rotary wheel more precisely, thereby achieving more accurate paper-pulling operation and improving the comfort and convenience of operation. Users do not need to spend too much effort to prevent their hands from slipping during operation, and can perform paper-pulling operation more easily. This convenience is even more obvious during long-term operation.

[0028] The height of the front panel 112 of the housing 11 is lower than the opening of the side slides 110, and the height difference between the front panel 112 and the slides 110 is not less than the thickness of a single sheet of weighing paper 4. This height design of the front panel 112 ensures smooth output of a single sheet of weighing paper 4. In actual use, the weighing paper 4 can be smoothly output from the housing 11 as designed, without any jamming, improving the ease of handling the weighing paper 4 and effectively preventing the simultaneous output of multiple sheets of weighing paper 4, thus reducing waste and contamination. This design is crucial in a laboratory environment, ensuring the proper use of the weighing paper 4 while maintaining the cleanliness and tidiness of the laboratory.

[0029] The box 11 is made of transparent PP (polypropylene) material. Its transparency allows users to clearly see the remaining amount of weighing paper 4 inside the box 11. In a laboratory environment, this helps users to understand the usage of weighing paper 4 in a timely manner, prepare in advance to replenish or replace weighing paper 4, and improve work efficiency.

[0030] Implementation principle: When the weighing paper 4 is needed, the user slides the pluggable top cover 12 to pull it out from the groove 110 on the upper part of the box 11, thereby opening the box 11. This sliding pluggable method makes the opening and closing operation simple and convenient. After use, the pluggable top cover 12 is slid back into the groove 110 to tightly close the box 11 and prevent external dust and other impurities from entering the box and contaminating the weighing paper 4. After opening the box 11, place the weighing paper 4 on the weighing paper tray 22. Since the elastic support component 21 is vertically installed at the bottom inside the box 11 and the weighing paper tray 22 is fixedly connected to the upper end of the elastic support component 21, the weighing paper tray 22 will compress the support spring 212 in the elastic support component 21 downward under the gravity of the weighing paper 4. As the weighing paper 4 is continuously added, the support spring 212 will adaptively adjust the height of the weighing paper tray 22 according to the weight of the weighing paper 4 until the weighing paper 4 fills the box 11. At this time, the support spring 212 is in the corresponding compressed state. When weighing paper 4 needs to be taken out, the user operates the paper-dispensing mechanism 3, which is located on the pluggable top cover 12. Through the coordinated action of components such as the dispensing wheel bracket 31, rotating shaft 32, dispensing wheel 33, elastic dispensing sheet 34, and friction block 35 in the paper-dispensing mechanism 3, the friction block 35 abuts against the upper surface of the weighing paper 4. Due to the rotation of the dispensing wheel 33, the friction blocks 35 on the elastic dispensing sheets 34, which are evenly distributed at equal distances around the dispensing wheel 33, will drive the weighing paper 4 to move under the action of friction. Due to the space limitation between the groove 111 and the front side plate 112 of the box body 11 and the weight of the weighing paper 4, only one sheet of weighing paper 4 can be dispensed at a time, and the weighing paper 4 will be output one sheet at a time along the groove 111. As the weighing paper 4 is continuously removed, the weight of the weighing paper 4 gradually decreases, and the elastic element in the elastic support assembly 21 will push the weighing paper tray 22 to gradually rise under the action of elastic restoring force. In this way, the remaining weighing paper 4 on the weighing paper tray 22 is always kept at a suitable height, which makes it easy for the paper-shifting mechanism 3 to continue to perform single-sheet paper-shifting operations.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A weighing paper storage box with a paper-dispensing function, characterized in that, The device includes a box assembly, a flexible lifting mechanism, and a paper feeding mechanism. The box assembly includes a box body and a pluggable top cover. The pluggable top cover is slidably inserted into a groove on the upper part of the box body. The flexible lifting mechanism includes a flexible support component vertically disposed at the bottom of the inner side of the box body and a weighing paper tray fixedly connected to the upper end of the flexible support component. The weighing paper tray is vertically slidably connected to the box body. A groove is provided between the groove and the front side plate of the box body. The paper feeding mechanism is disposed on the pluggable top cover and is used to drive the weighing paper on the weighing paper tray to output a single sheet along the groove.

2. The weighing paper storage box with paper-dispensing function according to claim 1, characterized in that, The elastic support assembly includes an outer sleeve, a support spring, and an inner sleeve. The lower end of the outer sleeve is fixedly connected to the bottom of the box body. The inner sleeve is slidably connected inside the outer sleeve. The upper end of the outer sleeve is fixedly connected to the lower end of the weighing paper tray. The two ends of the support spring are respectively connected to the bottom of the inner side of the outer sleeve and the upper part of the inner side of the inner sleeve to achieve symmetrical support for the weighing paper tray.

3. The weighing paper storage box with paper-dispensing function according to claim 2, characterized in that, The inner wall of the outer sleeve is provided with a guide groove, and the outer wall of the inner sleeve is provided with a guide protrusion that matches the guide groove, which is used to limit the sliding direction of the inner sleeve in the outer sleeve.

4. The weighing paper storage box with paper-dispensing function according to claim 1, characterized in that, The paper-feeding mechanism includes two wheel supports, a rotating shaft, a paper-feeding wheel, an elastic paper-feeding plate, and a friction block. The pluggable top cover has a U-shaped opening. The two wheel supports are respectively located on both sides of the U-shaped opening on the pluggable top cover. The rotating shaft is rotatably connected between the two wheel supports. The paper-feeding wheel is fixedly installed on the rotating shaft. The elastic paper-feeding plate is evenly distributed at equal distances along the circumference of the paper-feeding wheel. The friction block is installed on the elastic paper-feeding plate and is used to pass through the U-shaped opening and abut against the upper surface of the weighing paper.

5. The weighing paper storage box with paper-dispensing function according to claim 4, characterized in that, The outer surface of the friction block is rough.

6. The weighing paper storage box with paper-dispensing function according to claim 4, characterized in that, Both of the two dial brackets have manual dials fixedly connected to the rotating shaft on their opposite outer sides.

7. The weighing paper storage box with paper-dispensing function according to claim 4, characterized in that, The elastic paper pusher is made of a corrugated spring steel sheet.

8. The weighing paper storage box with paper-dispensing function according to claim 6, characterized in that, The manual rotary wheel has anti-slip protrusions on its outer circumference.

9. The weighing paper storage box with paper-dispensing function according to claim 1, characterized in that, The height of the front panel of the box is lower than the opening position of the sliding grooves on both sides, and the height difference between the front panel and the sliding groove is not less than the thickness of a single sheet of weighing paper.

10. The weighing paper storage box with paper-dispensing function according to claim 1, characterized in that, The box is made of transparent PP material.

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