Granularity observation ruler
The particle size observation ruler, made of flexible material, solves the problems of inconvenient climbing and low accuracy during coal particle size pre-detection, realizing safe and efficient particle size measurement, and is suitable for convenient detection in coal stockpiles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, coal particle size pre-detection suffers from problems such as inconvenience in climbing and low accuracy, especially when the coal pile is high and the surface is uneven. Using a hard mass ruler for climbing poses safety hazards and visual inspection methods are not accurate enough.
Design a particle size observation ruler made of flexible material, including first and second measuring scales set vertically, with an adhesive surface that can be detachably attached to clothing, equipped with hook and loop fasteners, magnetic attachments or easy-tear attachments, for easy carrying and measurement, suitable for measuring the major and minor diameters of irregular samples.
It improves the efficiency and accuracy of coal particle size detection, avoids safety hazards during climbing, frees up hands, is easy to carry and use, and is adaptable to various environments.
Smart Images

Figure CN224286621U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal detection technology, and in particular to a particle size observation ruler. Background Technology
[0002] Before sampling bulk cargo samples, manual pre-testing of particle size is required to determine the appropriate sampling tool's nozzle size and the weight to be collected at a single point. For samples such as coal, workers need to climb onto the coal pile and pre-test the particle size using visual inspection and ruler measurement. Due to the height of the coal pile and its uneven surface, carrying a ruler would be inconvenient for workers climbing and could even cause safety accidents. Visual inspection alone would result in low accuracy in particle size pre-testing.
[0003] Therefore, there is an urgent need to design an observation scale to solve the above-mentioned problems in the existing technology. Utility Model Content
[0004] The purpose of this invention is to provide a particle size observation ruler that is simple in structure, easy to carry, and capable of quickly measuring the particle size of particulate matter.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] This utility model provides a particle size observation ruler, comprising:
[0007] The body is made of a flexible material and has an attachment surface and an observation surface. A first measuring scale and a second measuring scale are provided on the observation surface. The first measuring scale and the second measuring scale are perpendicular to each other. The attachment surface is detachably connected to the garment.
[0008] Preferably, the main body is further provided with a third measuring scale, which is arranged parallel to the first measuring scale.
[0009] Preferably, the first measuring rod is a leveling rod.
[0010] Preferably, the attaching surface has a male side for the hook and loop fastener, and the garment has a female side for the hook and loop fastener, with the male side adhered to the female side.
[0011] Preferably, a magnetic element is provided on the attachment surface, and the magnetic element is attracted to a magnet on the garment.
[0012] Preferably, the particle size observation ruler further includes an easy-tear component, which is disposed on the body without being connected to the garment.
[0013] Preferably, the tear-off part has a pull hole.
[0014] Preferably, the body is made of a waterproof material.
[0015] The beneficial effects of this utility model are as follows:
[0016] The particle size observation ruler provided by this utility model includes a main body. Since the main body is equipped with a first measuring scale and a second measuring scale, the staff can use the measuring scale on the main body to pre-detect the particle size of bulk samples to determine the opening size of the sampling tool and the weight of a single point collection. Since the first measuring scale and the second measuring scale are perpendicular, the staff can simultaneously measure the major and minor diameters of irregular samples when measuring particle size, thereby saving measurement steps and improving detection efficiency. Since the main body is made of flexible material, the staff can avoid the discomfort and accidental injury caused by a hard observation ruler when climbing bulk sample stacks. Since the attachment surface of the main body can be detachably connected to clothing, the staff does not need to hold the observation ruler to climb the stacks, thus freeing up the staff's hands, making it easy to carry and highly practical. Attached Figure Description
[0017] Figure 1 This is a front view of the particle size observation ruler provided in a specific embodiment of this utility model.
[0018] In the picture:
[0019] 1-Main body; 11-First measuring scale; 12-Second measuring scale; 13-Third measuring scale;
[0020] 2-Easy-tear part; 21-Pull hole. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0022] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0024] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0025] like Figure 1 As shown, this utility model provides a particle size observation ruler, which includes a body 1 made of flexible material. The body 1 has an attachment surface and an observation surface. A first measuring scale 11 and a second measuring scale 12 are provided on the observation surface. The first measuring scale 11 and the second measuring scale 12 are perpendicular to each other. The attachment surface is detachably connected to the clothing. In this embodiment, since the main body 1 is equipped with a first measuring scale 11 and a second measuring scale 12, the staff can use the measuring scale on the main body 1 to pre-detect the particle size of the bulk sample to determine the opening size of the sampling tool and the weight of the single-point collection. Since the first measuring scale 11 and the second measuring scale 12 are perpendicular, the staff can simultaneously measure the major and minor diameters of the irregular sample when measuring the particle size, thereby saving measurement steps and improving detection efficiency. Since the main body 1 is made of flexible material, the staff can avoid the discomfort and accidental injury caused by hard observation scales when climbing the bulk sample yard. Since the attachment surface of the main body 1 can be detachably connected to clothing, the staff does not need to hold the observation scale to climb the yard, thus freeing the staff's hands, making it easy to carry and highly practical. Specifically, the body 1 of the particle size measuring ruler is made of cloth or flexible plastic and can be attached to the worker's clothing for easy carrying. When conducting pre-testing of the particle size of samples in the bulk cargo yard, the worker removes the particle size measuring ruler from their clothing, selects several samples from the yard, places the particle size measuring ruler next to the samples, and measures the particle size of the samples using the first measuring ruler 11 and the second measuring ruler 12.
[0026] To further improve the ease of use of this particle size observation scale, such as Figure 1 As shown, a third measuring scale 13 is also provided on the main body 1, which is set parallel to the first measuring scale 11. Specifically, the third measuring scale 13 has a different range and scale division value than the first measuring scale 11 and the second measuring scale 12, so as to meet the measurement requirements of different particle sizes and improve the practicality and applicability of the particle size observation scale.
[0027] Specifically, the first measuring rod 11 is a leveling rod, a commonly used measuring rod for quick measurement. It is marked with E-shaped lines, allowing workers to quickly determine the particle size of the sample without needing to read the scale precisely. In this embodiment, the second measuring rod 12 and the third measuring rod 13 are both measuring rods with ordinary scale lines, used to enable workers to accurately measure the particle size of the sample.
[0028] Specifically, the main body 1 is made of rectangular material. The first measuring scale 11, the second measuring scale 12, and the third measuring scale 13 are integral with the main body 1. The E-shaped markings on the first measuring scale 11 and the scale lines on the second measuring scale 12 and the third measuring scale 13 are all marked on the edge of the observation surface of the main body 1. The E-shaped markings on the first measuring scale 11 and the scale lines on the second measuring scale 12 and the third measuring scale 13 are all marked on the main body 1 using a fixed color dye.
[0029] In this embodiment, the attaching surface is provided with a male side of the adhesive tape, and the garment is provided with a female side of the adhesive tape. The male side is adhered to the female side. The adhesive tape is a commonly used connecting accessory, which consists of a male side with barbs and a female side with soft bristles. The female side is sewn onto the garment, and the male side is sewn onto the attaching surface of the body 1. Therefore, the worker can attach the body 1 to the garment for easy access.
[0030] In another embodiment, a magnetic element is provided on the attachment surface, and the magnetic element is attracted to a magnet on the garment; specifically, the garment is provided with a metal magnet that can be attracted by the magnetic element, and the staff can use magnetic force to attract the main body 1 to the garment; after the particle size of the sample is measured, the main body 1 can be placed on the garment where the magnet is located. The structure is simple, easy to use, and has strong practicality.
[0031] To facilitate daily use by staff, such as Figure 1 As shown, the particle size observation ruler also includes an easy-tear part 2, which is set on the main body 1 without being connected to the clothing. Specifically, the easy-tear part 2 is connected to the main body 1, and the easy-tear part 2 is not connected to the clothing. Therefore, the staff can remove the main body 1 from the clothing by pulling the easy-tear part 2. The easy-tear part 2 makes it easy for the staff to apply pulling force, thereby reducing the difficulty of removing the main body 1.
[0032] Specifically, such as Figure 1As shown, the tear-off piece 2 has a pull hole 21. In this embodiment, the tear-off piece 2 is fixedly connected to the body 1. Since the tear-off piece 2 has a pull hole 21, the staff can insert their fingers into the pull hole 21 to apply a pulling force to the body 1, thereby making it easier to remove the body 1 from the clothes.
[0033] In another embodiment, the tear-off piece 2 is a long strip structure, with both ends of the tear-off piece 2 fixedly connected to the body 1, thus forming a pull hole 21 between the tear-off piece 2 and the body 1. The staff can remove the body 1 from the clothes by inserting their fingers into the pull hole 21.
[0034] Furthermore, the tear-off piece 2 is also made of flexible waterproof material and is marked with graduation lines, which facilitates the particle size measurement of irregularly structured sample particles by the particle size observation ruler.
[0035] Furthermore, the main body 1 is made of waterproof material; specifically, the main body 1 is made of polymer waterproof fabric or flexible plastic, which can be used normally in rainy or snowy weather or after being immersed in water. In addition, the E-shaped markings on the first measuring scale 11 and the scale lines on the second measuring scale 12 and the third measuring scale 13 are coated with fluorescent material, which can emit light in the absence of light, thereby enabling the detection of sample particle size at night and exhibiting strong environmental adaptability.
[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A particle size observation ruler, characterized in that, include: The body (1) is made of a flexible material and has an attachment surface and an observation surface. A first measuring scale (11) and a second measuring scale (12) are provided on the observation surface. The first measuring scale (11) and the second measuring scale (12) are perpendicular to each other. The attachment surface is detachably connected to the garment.
2. The particle size observation scale according to claim 1, characterized in that, The main body (1) is also provided with a third measuring scale (13), which is set parallel to the first measuring scale (11).
3. The particle size observation ruler according to claim 2, characterized in that, The first measuring rod (11) is a leveling rod.
4. The particle size observation ruler according to claim 1, characterized in that, The adhesive surface has a male side with a hook and loop fastener, and the garment has a female side with the hook and loop fastener, with the male side being adhered to the female side.
5. The particle size observation ruler according to claim 1, characterized in that, A magnetic element is provided on the attachment surface, and the magnetic element is attracted to the magnet on the garment.
6. The particle size observation scale according to claim 4 or 5, characterized in that, The particle size observation ruler also includes an easy-tear part (2), which is disposed on the body (1) without being connected to the garment.
7. The particle size observation ruler according to claim 6, characterized in that, The tear-off piece (2) is provided with a pull hole (21).
8. The particle size observation ruler according to claim 1, characterized in that, The body (1) is made of waterproof material.