Auxiliary tool for testing a gummy layer
By designing an auxiliary tool for the gel layer test, and utilizing a combination of a pointed tip and a plate, the problems of difficult filter paper handling and poor sealing were solved, achieving a convenient and non-destructive filter paper sealing effect and improving the sealing performance of coal samples.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXING DUCTILE IRON PIPES CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-29
AI Technical Summary
The lack of dedicated auxiliary tools in the existing technology makes it difficult to operate the filter paper in the gel layer test, which can easily damage the filter paper and asbestos gasket, resulting in poor sealing effect.
An auxiliary tool consisting of strips and plates was designed. The tip of the strips can be inserted into the gap between the filter paper and the cup wall to pry out the edge of the filter paper. The plates are used to fold and press the filter paper to increase the contact area, distribute the pressure, and prevent damage.
It enables convenient filter paper operation, reduces the risk of damage, improves the sealing effect, ensures the integrity of filter paper and asbestos gasket, and enhances the sealing of coal samples.
Smart Images

Figure CN224303407U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gel layer detection technology, and specifically to auxiliary tools used for gel layer testing. Background Technology
[0002] The plastic layer index is an important indicator that characterizes the plasticity of coal by measuring properties such as the maximum thickness of the plastic layer. Accurate coal loading procedures are crucial to the experimental results. In the coal loading process for the plastic layer experiment, filter paper, coal sample, and asbestos pad must be placed inside the coal cup in sequence. To ensure the coal sample is sealed, the portion of the filter paper above the upper asbestos pad must be bent to the top of the asbestos pad and pressed firmly.
[0003] In existing technology, due to the lack of specialized auxiliary tools, operators usually use a wire bent at 90° as a temporary solution. The specific steps are as follows: first, use the unbent end of the wire to pick up the upper edge of the filter paper from the gap between it and the cup wall; then, use the bent end of the wire to fold it onto the surface of the asbestos pad; and finally, press it tightly to seal.
[0004] However, this method of operation has significant drawbacks: Firstly, due to its relatively large diameter, conventional iron wire is difficult to insert into the narrow gap between the filter paper and the coal cup wall. The end face of the iron wire needs to constantly pry the edge of the filter paper to pick it out. This can easily cause damage to the edge of the filter paper if too much force is applied during the operation. Furthermore, during the pressing operation, the contact area between the bent end of the iron wire and the filter paper is small, and the pressure is concentrated during pressing, which can not only easily damage the filter paper but may also damage the asbestos pad. Utility Model Content
[0005] In view of this, the present invention provides an auxiliary tool for the gel layer test, which can be more easily inserted into the gap between the filter paper and the cup wall to pick out the filter paper, making the operation more convenient. Furthermore, when pressing down on the filter paper, it can increase the pressing area on the filter paper, disperse the pressure on the filter paper, prevent pressure damage and breakage of the filter paper, and improve the sealing effect.
[0006] To solve the above-mentioned technical problems, this utility model provides an auxiliary tool for the gel layer test, including a strip and a plate. The strip is a long cylindrical structure made of metal rod, and the plate can be a circular, rectangular or elliptical plate. The end of the strip is fixed at the edge of the plate, and the strip and the plate are set at a fixed angle. By setting the fixed angle, when the worker holds the strip and presses the plate into the coal cup, the plate can be pressed down vertically.
[0007] One end of the strip is provided with a pointed tip, the tip of which can be inserted into the gap between the coal cup wall and the filter paper, and the upper edge of the filter paper can be picked out from the gap. Compared with the existing iron wire, the diameter of the pointed tip is smaller, making it easier to insert into the gap and pick out, reducing the risk of damaging the filter paper.
[0008] The plate-shaped material is used to fold and press the protruding part of the filter paper onto the surface of the asbestos pad. The design of the plate-shaped material allows for a larger contact area with the filter paper when folding and pressing it, making the pressure on the filter paper more dispersed and preventing damage to the filter paper.
[0009] The tip is tapered, and the smaller area at the end of the tapered structure makes it easier to insert into gaps.
[0010] The top of the conical structure is rounded to prevent sharp edges from scratching the filter paper.
[0011] The plate has a rectangular cross-section, which can evenly distribute the compressive force to the surface of the filter paper and prevent local damage to the filter paper or asbestos pad.
[0012] Each edge of the plate is rounded and chamfered. The design of the plate with rounded edges prevents the edges from being too sharp and causing damage to the filter paper.
[0013] The angle between the strip and the plate is 90°. This vertical structure allows the plate to fit completely against the surface of the asbestos pad when compressed, and the vertical design makes it easier for workers to hold the strip and move the plate down into the coal cup.
[0014] One end of the plate is designed with an arc shape that fits the cup wall, ensuring that the filter paper is subjected to uniform force and adheres to the cup wall when compressed. This reduces edge leakage during the compression process and improves the sealing of the coal sample.
[0015] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:
[0016] 1. When using this utility model, it is easier to insert the filter paper into the gap between the filter paper and the cup wall to pick out the filter paper, making the operation more convenient. It can also increase the pressing area of the filter paper when pressing down, disperse the pressure on the filter paper, prevent damage to the filter paper, and improve the sealing effect.
[0017] 2. When using this utility model, the tapered tip design allows it to be easily inserted into the micro-gap between the coal cup wall and the filter paper, achieving the non-destructive removal of the filter paper edge, and completely solving the problem of filter paper breakage caused by the excessive diameter of traditional iron wire.
[0018] 3. When this utility model is used, the large-area pressing surface of the rectangular plate can completely cover the folded part of the filter paper, so that the pressing force is evenly distributed, effectively avoiding the filter paper damage or asbestos pad damage caused by the small contact surface when pressing with traditional iron wire.
[0019] 4. When this utility model is used, the cooperation between the 90° vertical connection structure and the arc-shaped end face allows the tool to automatically fit against the coal cup wall when pressed, which significantly improves the sealing performance of the coal sample and eliminates the risk of edge leakage. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0021] Figure 2 This is a side view of the main structure of the present utility model;
[0022] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0023] Figure 4 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point B.
[0024] Explanation of reference numerals in the attached figures:
[0025] 100. Strip; 200. Tip; 300. Plate. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0027] Auxiliary tools used for gel layer testing, such as Figure 1 As shown: It includes a strip 100 and a plate 300. The strip 100 is a long cylindrical structure made of metal. The plate 300 can be a circular, rectangular, or elliptical plate. The end of the strip 100 is fixed to the plane of the plate 300. The plate 300 is made of the same metal as the strip 100. The end of the strip 100 can be fixed at any position on the plane of the plate 300, specifically at the edge of the plane of the plate 300. The strip 100 and the plane of the plate 300 are set at a fixed angle. By setting the fixed angle, when the worker holds the strip 100 and presses the plate 300 into the coal cup, the plane of the plate 300 can be pressed down vertically.
[0028] One end of the strip 100 is provided with a tip 200, which can be a conical or wedge-shaped structure. The tip of the tip 200 can be inserted into the gap between the coal cup wall and the filter paper, and the upper edge of the filter paper can be lifted out from the gap, so that the upper edge of the filter paper is away from the cup wall, which is convenient for subsequent folding and pressing. Compared with the existing iron wire, the tip 200 has a smaller diameter, making it easier to insert into the gap and lift out, reducing the risk of damaging the filter paper.
[0029] The plate 300 is used to fold and press the part of the filter paper that has been picked up onto the surface of the asbestos pad. Through the design of the plate 300, the contact area with the filter paper can be larger when folding and pressing the filter paper, so that the pressure on the filter paper is more dispersed. Compared with the existing iron wire pressing directly, the plate 300 is safer to use and prevents damage to the filter paper.
[0030] The worker first holds the strip-shaped object 100 with its pointed end 200 facing down. The tip of the pointed end 200 is inserted into the gap between the upper edge of the filter paper and the cup wall. The edge of the filter paper is then lifted inwards towards the cup wall, moving the upper edge away from the cup wall. The strip-shaped object 100 is then flipped over, allowing the flat surface of the plate-shaped object 300 to press down on the lifted portion of the filter paper. The filter paper is then folded over the asbestos pad and gently pressed down to ensure it adheres tightly to the surface of the asbestos pad. This process of lifting and folding the filter paper edge requires repeated use of the pointed end 200 and the plate-shaped object 300 until the entire upper edge of the filter paper is pressed against the surface of the asbestos pad, completing the folding and sealing process.
[0031] Specifically, the tip 200 has a tapered structure. The area at the end of the tapered structure is smaller, and the diameter from the end to the top tends to decrease, making it easier to insert into the gap.
[0032] Furthermore, according to Figure 3 As shown, the top of the conical structure is rounded to prevent sharp edges from scratching the filter paper.
[0033] according to Figure 1 , Figure 2 and Figure 4 As shown, the cross-section of the plate 300 is rectangular, and its plane area is larger than that of the strip 100. This allows the compressive force to be evenly distributed to the surface of the filter paper, preventing local damage to the filter paper or asbestos pad. The plate 300 is a rectangular plate with a length of 4cm, a width of 2cm, and a thickness of 5mm.
[0034] Specifically, each edge of the plate 300 is rounded and chamfered. When the plate 300 is pressed down, the edge design of the plate 300 prevents the edges from being too sharp and causing damage to the filter paper.
[0035] Furthermore, one end face of the plate 300 is set as an arc-shaped structure that fits the cup wall, ensuring that the filter paper is subjected to uniform force and adheres to the cup wall when pressed. During the pressing operation, the operator can place the arc-shaped end of the plate 300 against the cup wall and then press the filter paper to reduce edge leakage and improve the sealing of the coal sample.
[0036] according to Figure 2 As shown, the angle between the plane of the strip 100 and the plate 300 is 90°, and the strip 100 and the plate 300 are connected by welding to ensure angular accuracy. This vertical structure allows the plate 300 to completely fit the upper surface of the asbestos pad when pressed, providing uniform sealing pressure. The vertical design also makes it easier for workers to hold the strip 100 and move the plate 300 down into the coal cup.
[0037] How to use this utility model:
[0038] When the coal sample, asbestos pad, and filter paper are all placed inside the coal cup, and the coal sample needs to be sealed, the worker holds a strip-shaped object 100 and inserts the pointed end 200 of the strip-shaped object 100 into the gap between the upper edge of the filter paper and the cup wall. Then, the worker pries out the upper edge of the filter paper by lifting the edge. Next, a plate-shaped object 300 is used to press down on the lifted part of the filter paper, causing the lifted part of the filter paper to fold onto the upper surface of the upper asbestos pad. Then, the plate-shaped object 300 is pressed firmly against the filter paper, and the plate is pressed down. The arc-shaped structure of the plate 300 is pressed tightly against the cup wall to prevent gaps. Through repeated operations of lifting the tip 200 and pressing the plate 300, the upper edge of the filter paper is completely pressed against the surface of the asbestos pad, thus completing the sealing of the coal sample. The design of the tip 200 and the plate 300 makes it easier to lift the filter paper, expand the pressing area of the filter paper, disperse the pressure on the filter paper, prevent pressure damage and breakage of the filter paper, and improve the sealing effect.
[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. An auxiliary tool for testing gel layers, characterized in that: It includes a strip (100) and a plate (300), the end of the strip (100) is fixed to the plane of the plate (300), and the strip (100) and the plane of the plate (300) are set at a fixed angle; One end of the strip (100) is provided with a pointed part (200), which is used to insert into the gap between the coal cup wall and the filter paper and to lift out the edge of the filter paper; The plate-shaped object (300) is used to fold and press the portion of the filter paper that has been picked out onto the upper surface of the asbestos pad.
2. The auxiliary tool for gel layer testing as described in claim 1, characterized in that: The tip (200) has a conical structure.
3. The auxiliary tool for gel layer testing as described in claim 2, characterized in that: The top of the conical structure is rounded to prevent it from scratching the filter paper.
4. The auxiliary tool for gel layer testing as described in claim 1, characterized in that: The plate (300) has a rectangular cross-section, and its plane area is larger than that of the strip (100) to disperse the clamping force and prevent local damage to the filter paper or asbestos pad.
5. The auxiliary tool for gel layer testing as described in claim 4, characterized in that: Each edge of the plate (300) is rounded and chamfered to avoid scratching the filter paper.
6. The auxiliary tool for gel layer testing as described in claim 1, characterized in that: The angle between the plane of the strip (100) and the plate (300) is 90°.
7. The auxiliary tool for gel layer testing as described in claim 4, characterized in that: One end face of the rectangular plate (300) is set as an arc-shaped structure that fits the cup wall, ensuring that the filter paper is subjected to uniform force and fits the cup wall when pressed.