A fully automatic gelling material setting time measuring instrument

Abstract

The present invention relates to the technical field of chemical material coagulation time measurement, and in particular to a fully automatic gelling material coagulation time measuring instrument, wherein a material holding barrel is provided on the supporting stand, and the time measuring instrument is used to enter the material and measure the coagulation time of the material; the time measuring instrument includes a fixed base, a central lifting plate movably arranged at the center position of the fixed base, and a central probe arranged on the central lifting plate, the central lifting plate rises and falls along its own axial direction, a structural cavity is provided in the central probe, and an anti-adhesion structure for preventing the central probe from adhering to the material and an anti-deformation structure for preventing the central probe from deforming when it touches the bottom are provided in the structural cavity, thereby solving the technical problem that the central probe in the existing chemical material coagulation detector is easily deformed when it touches the bottom and is blocked when it is lifted up during detection.

Description

Technical Field

[0001] The invention relates to the technical field of chemical material coagulation time determination, in particular to a full-automatic gelling material coagulation time determination instrument. Background Art

[0002] The fully automatic setting time measuring instrument for cementitious materials is a high-precision testing device based on intelligent control technology. It is specially used for the automatic measurement of the setting time of cementitious materials such as cement, concrete, and mortar. By integrating mechanical motion control, sensor monitoring, and data analysis systems, it significantly improves detection efficiency and accuracy.

[0003] The invention patent with Chinese patent application number 202410165927.4 discloses a cement setting time measuring instrument, which includes a tray, a support column, a mounting frame, a counterweight, a measuring needle, a fixing device, and a damping buffer. The mounting frame is fixed to the tray through the support column, the counterweight and the fixing device are both installed on the mounting frame, the measuring needle is installed at one end of the counterweight, the counterweight is fixed with a protrusion, and the damping buffer is fixed in the mounting frame. The mounting frame is a cylinder with a hollow interior, and a scale groove communicating with the internal hollow is provided on the outer surface of the mounting frame. The protrusion passes through the scale and simultaneously achieves the effect of limiting and marking the height. A mounting platform for installing the damping buffer is provided in the mounting frame. The present invention is provided with a damping buffer. When measuring the initial setting time of cement, the measuring needle is first reduced to a size that the measuring needle can withstand through the damping buffer before colliding with the base plate, thereby solving the problem of bending of the measuring needle due to collision. The technical solution proposed in the above invention mainly aims to improve the structure of the probe to prevent it from colliding with the bottom plate of the container and causing bending when entering the cement material; however, during the use of the material setting time measuring instrument, an issue that cannot be ignored is: how to monitor whether the material is completely set by measuring the depth of the probe without touching the bottom plate of the container and how to ensure that the probe is lifted up to the minimum extent affected by the material resistance after detection. Summary of the Invention

[0004] Therefore, in order to solve the above problems, the present invention proposes a fully automatic gelling material coagulation time measuring instrument, which solves the technical problems that the central probe of the existing chemical material coagulation detector is easily deformed by touching the bottom and is blocked from lifting during detection.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a fully automatic gelling material setting time measuring instrument, comprising a supporting frame, a time measuring instrument arranged on the supporting frame, a material holding barrel arranged on the supporting frame, and the time measuring instrument being used to enter the material and measure the setting time of the material;

[0006] The time measuring instrument includes a fixed base, a central lifting plate movably arranged at the center of the fixed base, and a central probe arranged on the central lifting plate. The central lifting plate rises and falls along its own axis. The central probe includes a connecting portion, an extending portion, and a detecting portion from top to bottom. The central probe is rotated 360 degrees along its own axis by a rotating motor. A structural cavity is provided in the central probe. The central probe is provided with an anti-adhesion structure to prevent the central probe from adhering to the material and an anti-deformation structure to prevent the central probe from deforming when it touches the bottom.

[0007] The anti-adhesion structure includes a central rotating rod arranged in the structural cavity, a lifting compass sleeved on the central rotating rod, and an outward convex top block arranged on the central probe. The outward convex top block is pushed outward by the thrust of the lifting compass and retracts inward after the force is lost. The outward convex top block is covered with a Teflon coating.

[0008] Furthermore, the supporting stand includes an upper frame and a lower frame, the time measuring instrument is fixedly arranged on the upper frame, the material holding barrel is movably arranged on the lower frame, and the time measuring instrument is located directly above the material holding barrel.

[0009] Furthermore, the outer convex top block is arranged on the outer circumferential side surface of the central probe and extends into the structural cavity, and the outer convex top block is arranged on the extension portion.

[0010] Furthermore, a connecting groove is provided on the central probe, and the connecting groove passes through the structural cavity. The external convex top block is embedded in the connecting groove. A first locking protrusion is provided on a side of the connecting groove close to the outside world, and a second locking protrusion is provided on the external convex top block. The first locking protrusion and the second locking protrusion cooperate with each other, and the two are elastically connected by a spring.

[0011] Furthermore, the central rotating rod rotates 360 degrees along its own axis, and the lifting compass is driven by a motor to rise and fall along the length direction of the central rotating rod.

[0012] Furthermore, the convex top block is arranged around the outer circumferential side of the central probe, and the number of the convex top blocks on the same horizontal plane is three, and the three convex top blocks are evenly arranged around. A first arc-shaped pushing portion is provided on one side of the convex top block close to the structural cavity. The horizontal cross-section of the lifting compass is an equilateral triangle structure, and its three vertex angles are arc-shaped, and its three vertex angles are defined as second arc-shaped pushing portions. As the lifting compass rotates, the second arc-shaped pushing portion and the first arc-shaped pushing portion contact each other and push the convex top block outward.

[0013] Furthermore, in the vertical direction within the structural cavity, each of the first arc-shaped pushing parts together constitutes a moving channel for the lifting compass to move up and down. When the first arc-shaped pushing part and the second arc-shaped pushing part are separated from each other, the lifting compass moves up and down within the structural cavity. When the first arc-shaped pushing part and the second arc-shaped pushing part contact and abut against each other, the lifting compass is stationary in the vertical direction and rotates horizontally following the central rotating rod in the horizontal direction.

[0014] Furthermore, the anti-deformation structure includes a plurality of sensing curved arms arranged on the detection portion of the central probe, and each of the sensing curved arms is arranged in a surrounding shape.

[0015] Furthermore, the sensing curved arm bends outward with the central axis of the central probe as the center, and the sensing curved arm includes a vertical end and an extended end, the extended end is rotatably connected to the vertical end, the extended end is made of flexible material, and a pressure sensor is provided at the connection between the extended end and the vertical end.

[0016] Furthermore, the end of the vertical end is flush with the end of the central probe.

[0017] By adopting the above technical solution, the beneficial effects of the present invention are:

[0018] 1. Compared with the existing gelling material coagulation time measuring instrument, the technical solution proposed by the present invention is mainly improved by the structure of the central probe. Since the central probe is a precise and fragile component, the present invention avoids the deformation of the central probe due to touching the bottom during the detection process on the one hand, and avoids the problem of the central probe being difficult to be pulled out due to excessive resistance due to contact with the detection material after the test is completed on the other hand. Specifically, an anti-adhesion structure and an anti-deformation structure are provided, wherein the anti-adhesion structure mainly comprises multiple groups of convex top blocks in the vertical direction, and three convex top blocks on the same horizontal plane form a group. The convex top blocks are covered with a non-stick Teflon coating throughout. During operation, it is inevitable that the liquid material will flow freely and come into contact with the central probe. As the gelling material continues to solidify, it will gradually become thicker and undergo a transformation from liquid to solid. In this transformation process, the present invention is By continuously moving the convex top block, the contact area between the central probe and the cementitious material is reduced, thereby reducing the resistance when lifting it. The internal and external pushing effects of the convex top block depend on the central rotating rod and the lifting compass arranged in the structural cavity. The state of the lifting compass on the horizontal plane remains constant with the central rotating rod. It only rises and falls along the axial direction of the central rotating rod and rotates with the rotation of the central rotating rod. A first arc-shaped pushing portion is provided on the side of the convex top block close to the structural cavity. The first arc-shaped pushing portion forms a vertical moving channel, and the lifting compass rises and falls in this channel. At the same time, the equilateral triangle structure of the lifting compass is also arranged to match the channel. The convex top block will only be pushed out outward after the first arc-shaped pushing portion and the second arc-shaped pushing portion contact each other, and it can only move in the moving channel after the first arc-shaped pushing portion and the second arc-shaped pushing portion are separated from each other.

[0019] 2. The outer convex top block in the present invention is able to increase the outer diameter of the central probe by continuously pushing outward and retracting inward, and cooperating with the continuously rotating central probe. The increase is flexible and not fixed, that is, it accompanies the continuous solidification of the gelling material until the gelling material is in a solid-liquid mixture in a partially solid state. At this time, the outer convex top block continues to work, and when the gelling material is completely solidified, the outer convex top block retracts and stops working. At this time, a gap will be generated between the central probe and the gelling material due to the expansion and contraction of the outer convex top block, that is, the outer circumferential side of the central probe does not contact the gelling material after the gelling material solidifies, which facilitates the lifting operation after the detection work is completed, and the outer convex retraction of the outer convex top block is also It also depends on the matching structure of the central probe. In the early stage, due to the insertion into the cementitious material, it naturally retracts under the pressure of the cementitious material without being affected by the top thrust of the lifting compass and is pushed outward after being subjected to force. As the cementitious material continues to solidify, the pressure originally provided by the cementitious material will slowly disappear. At this time, the convex top block is pulled inward by the spring, and the outward ejection also depends on the lifting compass. The reason why the above functional effects are achieved through mechanical structure is because the central probe is originally a high-precision component. Only by improving the mechanical structure can the failure rate be minimized to the greatest extent. At the same time, it is avoided that the addition of too many electrical components will cause electrical interference to the detection components originally set in the central probe.

[0020] 3. The anti-deformation structure in the present invention mainly realizes its function through the sensing curved arm, wherein the sensing curved arm includes a vertical end and an extended end. The extended end will extend in all directions due to its own flexibility after contacting the bottom of the container, and provide stability for the central probe after extension. At the same time, after the connection between the extended end and the vertical end touches the bottom, it means that the central probe has reached the pre-position and stops probing. The coagulation time of the cementitious material is detected at the pre-position, avoiding the central probe from being damaged after continuously probing and touching the bottom. The reason for avoiding the central probe from being damaged by touching the bottom is that in the process of detecting the cementitious material, the central probe should probe as low as possible without touching the bottom. If the bottom of the cementitious material is completely coagulated, it proves that the entire body is completely coagulated, and the measured time will be accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the central probe structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the central probe after it is lowered;

[0025] Figure 4 This is a schematic diagram of the internal structure of the central probe of the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 is a cross-sectional view of the central probe extension portion of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the lifting compass in the present invention;

[0029] Figure 8 This is a bottom-up structural diagram of the central probe of the present invention. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] See also Figures 1-8 The present invention provides a fully automatic gelling material setting time measuring instrument, comprising a support frame 1, a time measuring instrument arranged on the support frame 1, a material holding barrel 2 being arranged on the support frame 1, and the time measuring instrument being used to enter the material and measure the setting time of the material;

[0032] The time measuring instrument includes a fixed base 3, a central lifting plate 4 movably arranged at the center of the fixed base 3, and a central probe 5 arranged on the central lifting plate 4. The central lifting plate 4 rises and falls along its own axis. The central probe 5 includes a connecting portion 51, an extension portion 52, and a detection portion 53 from top to bottom. The central probe 5 is rotated 360 degrees along its own axis by a rotating motor. A structural cavity 74 is provided in the central probe 5. The central probe 5 is provided with an anti-adhesion structure 7 to prevent the central probe 5 from adhering to the material and an anti-deformation structure 6 to prevent the central probe 5 from deforming when it touches the bottom.

[0033] The anti-adhesion structure 7 includes a central rotating rod 71 disposed in the structural cavity 74, a lifting compass 72 sleeved on the central rotating rod 71, and a convex top block 73 disposed on the central probe 5. The convex top block 73 is pushed outward by the thrust of the lifting compass 72 and retracts inward after the force is lost. The convex top block 73 is covered with a Teflon coating.

[0034] Wherein Teflon coating is a non-stick coating, which is a well-known chemical coating.

[0035] The supporting stand 1 includes an upper frame 11 and a lower frame 12 , the time measuring instrument is fixedly arranged on the upper frame 11 , and the material barrel 2 is movably arranged on the lower frame 12 , and the time measuring instrument is located directly above the material barrel 2 .

[0036] The outer convex top block 73 is arranged on the outer circumferential side surface of the central probe 5 and extends into the structural cavity 74. The outer convex top block 73 is arranged on the central probe 5 and is located on the extension portion 52. The central probe 5 is provided with a connecting groove 521, and the connecting groove 521 passes through the structural cavity 74. The outer convex top block 73 is embedded in the connecting groove 521. A first clamping protrusion 522 is provided on the side of the connecting groove 521 close to the outside world. A second clamping protrusion 731 is provided on the outer convex top block 73. The first clamping protrusion 522 and the second clamping protrusion 731 cooperate with each other and are elastically connected by a spring 8. The central rotating rod 71 rotates 360° along its own axis. The lifting compass 72 is driven by a motor to rise and fall along the length direction of the central rotating rod 71 and perform reciprocating motion. The outer convex top block 73 is arranged around the outer circumferential side of the central probe 5. There are three outer convex top blocks 73 on the same horizontal plane. The three outer convex top blocks 73 are evenly arranged around. A first arc-shaped pushing portion 732 is provided on one side of the outer convex top block 73 close to the structural cavity 74. The horizontal cross-section of the lifting compass 72 is an equilateral triangle structure, and its three vertex angles are arc-shaped. The three vertex angles are defined as second arc-shaped pushing portions 721. As the lifting compass 72 rotates, the second arc-shaped pushing portion 721 and the first arc-shaped pushing portion 732 contact each other and push the outer convex top block 73 outward.

[0037] In the vertical direction within the structural cavity 74, the first arc-shaped pushing portions 732 together form a moving channel 75 for the lifting compass 72 to move up and down. When the first arc-shaped pushing portions 732 and the second arc-shaped pushing portions 721 are separated from each other, the lifting compass 72 moves up and down within the structural cavity 74. When the first arc-shaped pushing portions 732 and the second arc-shaped pushing portions 721 contact and abut against each other, the lifting compass 72 remains stationary in the vertical direction and rotates horizontally following the central rotating rod 71 in the horizontal direction.

[0038] The anti-deformation structure 6 includes three sensing curved arms arranged on the detection part 53 of the central probe 5, each of the sensing curved arms is arranged in a circular shape, and the sensing curved arms are bent outward with the central axis of the central probe 5 as the center. The sensing curved arm includes a vertical end 61 and an extended end 62, and the extended end 62 is rotatably connected to the vertical end 61. The extended end 62 is made of flexible material, and a pressure sensor is provided at the connection between the extended end 62 and the vertical end 61. The pressure sensor is used to sense whether the central probe 5 has bottomed out, which is a well-known device.

[0039] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fully automatic gelling material setting time measuring instrument, comprising a support frame and a time measuring instrument mounted on the support frame, characterized in that: The supporting stand is provided with a material holding barrel, and the time measuring instrument is used to enter the material and measure the setting time of the material; The time measuring instrument includes a fixed base, a central lifting plate movably arranged at the center of the fixed base, and a central probe arranged on the central lifting plate. The central lifting plate rises and falls along its own axis. The central probe includes a connecting portion, an extending portion, and a detecting portion from top to bottom. The central probe is rotated 360 degrees along its own axis by a rotating motor. A structural cavity is provided in the central probe. The central probe is provided with an anti-adhesion structure to prevent the central probe from adhering to the material and an anti-deformation structure to prevent the central probe from deforming when it touches the bottom. The anti-adhesion structure includes a central rotating rod arranged in the structural cavity, a lifting compass sleeved on the central rotating rod, and an outward convex top block arranged on the central probe, the outward convex top block being arranged on the outer circumferential side of the central probe and extending into the structural cavity, the outward convex top block being arranged on the extension portion, the outward convex top block being arranged around the outer circumferential side of the central probe, the number of the outward convex top blocks on the same horizontal plane is three, and the three outward convex top blocks are evenly arranged around, and a first arc-shaped pushing portion is provided on a side surface of the outward convex top block close to the structural cavity, the horizontal cross-section of the lifting compass is an equilateral triangle structure, and its three vertex angles are arc-shaped, and its three vertex angles are defined as second arc-shaped pushing portions, and as the lifting compass rotates, the second arc-shaped pushing portion and the first arc-shaped pushing portion contact each other and push the outward convex top block outward, and the outward convex top block is covered with a Teflon coating.

2. The fully automatic gelling material setting time measuring instrument according to claim 1, characterized in that: The supporting stand comprises an upper frame and a lower frame, the time measuring instrument is fixedly arranged on the upper frame, the material holding barrel is movably arranged on the lower frame, and the time measuring instrument is located directly above the material holding barrel.

3. The fully automatic gelling material setting time measuring instrument according to claim 2, characterized in that: A connecting groove is provided on the central probe, and the connecting groove passes through the structural cavity. The external convex top block is embedded in the connecting groove. A first clamping protrusion is provided on a side of the connecting groove close to the outside world, and a second clamping protrusion is provided on the external convex top block. The first clamping protrusion and the second clamping protrusion cooperate with each other and are elastically connected by a spring.

4. The fully automatic gelling material setting time measuring instrument according to claim 3, characterized in that: The central rotating rod rotates 360 degrees along its own axis, and the lifting compass is driven by a motor to move up and down along the length direction of the central rotating rod.

5. The fully automatic gelling material setting time measuring instrument according to claim 4, characterized in that: In the vertical direction within the structural cavity, the first arc-shaped pushing parts together form a moving channel for the lifting compass to move up and down. When the first arc-shaped pushing parts and the second arc-shaped pushing parts are separated from each other, the lifting compass moves up and down within the structural cavity. When the first arc-shaped pushing parts and the second arc-shaped pushing parts contact and abut against each other, the lifting compass is stationary in the vertical direction and rotates horizontally following the central rotating rod in the horizontal direction.

6. The fully automatic gelling material setting time measuring instrument according to claim 5, characterized in that: The anti-deformation structure includes a plurality of sensing curved arms arranged on the detection portion of the central probe, and each of the sensing curved arms is arranged in a surrounding shape.

7. The fully automatic gelling material setting time measuring instrument according to claim 6, characterized in that: The sensing curved arm is bent outward with the central axis of the central probe as the center. The sensing curved arm includes a vertical end and an extended end. The extended end is rotatably connected to the vertical end. The extended end is made of flexible material. A pressure sensor is provided at the connection between the extended end and the vertical end.

8. The fully automatic gelling material setting time measuring instrument according to claim 7, characterized in that: The end of the vertical end is flush with the end of the central probe.

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