Easily-sampling system for gypsum-based self-leveling mortar slurry and pipe joint thereof

Abstract

The utility model relates to an easy sampling system of gypsum-based self-leveling mortar slurry and a pipe joint thereof, a feed port of a sampler is connected with a feed delivery pipe, the pipe joint comprises a middle rotating cylinder, two ends of the rotating cylinder are respectively and rotatably provided with a fixed connecting cylinder and a movable connecting cylinder, and the inner ends of the fixed connecting cylinder and the movable connecting cylinder extend into the rotating cylinder. A partition plate is arranged in an inner hole of the rotating cylinder at intervals, a communicating hole is formed in the partition plate, a sealing protrusion is arranged at the inner end of the fixed connecting cylinder, the sealing protrusion can cover the communicating hole, a matching plate is arranged at the inner end of the movable connecting cylinder in a sealing mode, the matching plate is matched with the partition plate in a sealing and rotating mode, and transition holes capable of being independently communicated with the communicating hole are formed in the matching plate. The outer end of the fixed connecting cylinder is fixedly connected with a fixed pipe head, the other end of the fixed pipe head is used for being connected with a sampled stock bin, and all the pipe bodies are fixedly assembled with the movable connecting cylinder and communicate with all the transition holes in a one-to-one correspondence mode. According to the utility model, the problem that slurry remained in the pipe body is dry and blocked and cannot be reused can be solved.

Description

Technical Field

[0001] The utility model relates to an easy sampling system for gypsum-based self-leveling mortar slurry and a pipe joint thereof, which are used for extracting gypsum-based self-leveling mortar slurry samples from gypsum-based self-leveling mortar mixing equipment. Background Art

[0002] Gypsum-based self-leveling mortar is a material specially used for indoor floor leveling, which is made by carefully configuring and evenly mixing high-strength gypsum, aggregates and various additives. Gypsum-based self-leveling mortar can achieve automatic leveling during the construction process, without the need for manual secondary leveling. It is easy to construct and has high flatness. The fluidity of gypsum-based self-leveling mortar is directly related to the construction quality. During the construction process, it is necessary to sample the mixed gypsum-based self-leveling mortar and conduct a fluidity test on the obtained samples to obtain the appropriate ratio of water and powder, that is, the optimal water-powder ratio, and obtain a gypsum-based self-leveling mortar slurry with fluidity that meets the requirements.

[0003] The Chinese patent specification with application number: 202311234352.9 discloses a gypsum-based self-leveling mortar mixing device with a fluidity testing device, wherein a material taking point is provided on the mixing device, and a sample delivery device is provided between the material taking point and the upper end of the fluidity test mold cylinder. The sample delivery device comprises a cylinder body, one end of the cylinder body and a piston structure provided with a sealing sliding arrangement form a sampling cavity, the cylinder body has an inlet connected to the sampling cavity, the inlet is connected to the material taking point through a pipeline through a one-way valve that conducts in the direction of the sampling cavity, an outlet is provided on the piston body of the piston structure, the outlet is connected to the upper end opening of the fluidity test mold cylinder through a one-way valve that conducts out of the cylinder body, and the piston rod of the piston structure extends out of the other end of the cylinder body.

[0004] When the sample feeding device is used to sample the stirred gypsum-based self-leveling mortar, it is usually necessary to connect the sample feeding device with the material taking port on the stirring device or the material feeding pipe arranged between the material taking port and the sample feeding device. In addition, during the fluidity test, multiple tests are usually required to obtain the best water-powder ratio. After one sampling test is completed, it is necessary to re-add and stir before sampling again. If the sample feeding device is directly connected to the material taking port on the stirring device for sampling, it is usually necessary to remove the sampling device for cleaning or replace the sampling device during this process, otherwise the slurry remaining in the original sampling device will affect the test results; and if the sampling interval is long and the sampling device is not cleaned or replaced, the slurry remaining in the sampling device will solidify on its inner wall, affecting the re-sampling; and, during the disassembly and assembly of the sample feeding device, the material taking port arranged on the stirring device and connected to the sample feeding device is prone to leakage; if a material feeding pipe is arranged between the material taking port and the sample feeding device, the slurry remaining in the material feeding pipe after one sampling is completed will affect the fluidity test results of the re-sampling. Utility Model Content

[0005] The utility model aims to provide an easy sampling system for gypsum-based self-leveling mortar slurry and its pipe joint, so as to solve the problems in the prior art that the sampling device needs to be frequently cleaned or replaced when the fluidity test of the gypsum-based self-leveling slurry is carried out, and the test results are inaccurate due to failure to replace the sampling device.

[0006] In order to solve the above problems, the easy sampling system of gypsum-based self-leveling mortar slurry and its pipe joint involved in the utility model adopt the following technical scheme: an easy sampling system of gypsum-based self-leveling mortar slurry, including a sampler, a feed port and a discharge port are respectively arranged at both ends of the sampler, a feed pipe is connected to the feed port, the feed pipe includes a group of pipe bodies, one end of each pipe body is connected to the feed port, and the other end of each pipe body is connected to a pipe joint, the pipe joint includes a rotating cylinder in the middle, and a fixed connecting cylinder and a movable connecting cylinder are respectively rotatably arranged at both ends of the rotating cylinder, and the fixed connecting cylinder and the movable connecting cylinder are both axially limited with the rotating cylinder Assembly, the inner ends of the fixed connecting cylinder and the movable connecting cylinder extend into the rotating cylinder, the inner hole of the rotating cylinder is separated by a partition, and a connecting hole is opened on the partition, and the inner end of the fixed connecting cylinder is provided with a sealing protrusion extending toward the center of the inner hole, and the sealing protrusion and the partition seal rotationally cooperate to cover the connecting hole, the inner end of the movable connecting cylinder is sealed with a matching plate, and the matching plate and the partition seal rotationally cooperate, and a transition hole that can be connected with the connecting hole separately is arranged on the matching plate, and the outer end of the fixed connecting cylinder is fixedly connected with a fixed pipe head, and the other end of the fixed pipe head is used to be connected to the sampled silo, and each tube body is fixedly assembled with the movable connecting cylinder and is connected with each transition hole one by one.

[0007] The tube bodies are fixedly assembled with the movable connecting tube through the movable tube head. The inner end of the movable tube head is locked and extends into the outer end of the movable connecting tube. The inner end of the movable tube head is sealed with a mounting plate. The mounting plate is provided with mounting holes. The tube bodies are assembled in the mounting holes one by one. The outer end of the movable connecting tube is threaded with a movable nut. A movable clamping tube is fixedly arranged inside the movable nut and is sleeved on the outside of the movable tube head and presses the first flange arranged on the movable tube head onto the partition.

[0008] The end of each tube body is provided with a mounting flange, and the mounting hole is a countersunk hole. Each tube body is fixedly assembled with a movable connecting tube through its own mounting flange, and the mounting flange is pressed between the matching plate and the step surface of the corresponding countersunk hole.

[0009] The fixed pipe head is fixedly assembled with the fixed connecting tube through a fixing nut, the fixing nut thread is screwed on the outer peripheral surface of the fixed connecting tube, and a fixed pressing tube is fixedly arranged inside the fixing nut, which is sleeved on the outside of the fixed pipe head and presses the second flange arranged on the fixed pipe head onto the partition.

[0010] A hexagonal surface is convexly provided in the middle of the outer peripheral surface of the rotating cylinder.

[0011] The fixed connection tube and the movable connection tube are assembled with the rotating tube axially through the shrinkage edges at the two ends of the rotating tube. The outer circumferences of the fixed connection tube and the movable connection tube are respectively provided with annular grooves for the corresponding shrinkage edges to rotatably embed.

[0012] The sampler includes an outer cylinder, both ends of which are sealed with sealing plates, a feed port and a discharge port are respectively arranged on the two sealing plates, a piston is slidably mounted in the outer cylinder, a piston rod extending from the sealing plate of the discharge port is arranged on one end face of the piston, a sliding sleeve is arranged on the outer sliding sealing sleeve of the piston rod, a flexible plate is fixedly arranged on the inner end of the sliding sleeve, the flexible plate is attached to or away from the piston during the sliding process of the sliding sleeve, the outer end sliding seal of the sliding sleeve extends out of the corresponding sealing plate, a positioning structure is arranged between the sliding sleeve and the piston rod for keeping the sliding sleeve and the piston rod moving together after the flexible plate is attached to or separated from the piston, and through holes are arranged on the outer edge of the piston.

[0013] The positioning structure is an elastic card arranged on the piston rod, one end of the elastic card is integrally arranged on the piston rod, and the other end is freely suspended. An opening is provided on the sliding sleeve, and a protrusion that can be inserted into the opening is convexly provided on the elastic card. A receiving groove for the elastic card to be elastically pressed into is provided on the piston rod, and the protrusion is pressed against the port of the sliding sleeve after being released from the sliding sleeve.

[0014] The edge of the flexible plate is provided with a reinforcement ring.

[0015] A pipe joint of an easy sampling system for gypsum-based self-leveling mortar slurry comprises a rotating cylinder in the middle, with fixed connecting cylinders and movable connecting cylinders rotatably arranged at both ends of the rotating cylinder, both of which are assembled with the rotating cylinder axially limited, the inner ends of the fixed connecting cylinder and the movable connecting cylinder extend into the rotating cylinder, a partition is arranged in the inner hole of the rotating cylinder, a connecting hole is arranged on the partition, a sealing protrusion extending toward the center of the inner hole is arranged on the inner end of the fixed connecting cylinder, the sealing protrusion and the partition seal are rotatably matched to cover the connecting hole, the inner end of the movable connecting cylinder is sealed with a matching plate, the matching plate and the partition seal are rotatably matched, and a transition hole which can be independently connected with the connecting hole is arranged on the matching plate.

[0016] The easy sampling system of the gypsum-based self-leveling mortar slurry of the utility model can be directly fixed on the material taking port of the gypsum-based self-leveling mortar mixing equipment, and does not need to be frequently replaced. When it is necessary to take materials, the rotating cylinder is rotated to connect one of the tube bodies in a group with the connecting hole, and the sampler can be used for sampling; after the sampling is completed, the rotating cylinder is rotated so that the sealing protrusion covers the connecting hole to block the flow path of the slurry, and the sampling can be stopped; when it is necessary to sample again, the movable connecting cylinder is rotated so that another unused tube body is connected to the connecting hole, and the tube body does not need to be cleaned, and the sampling test can be performed again; after the sampling is completed, the rotating cylinder is rotated so that the sealing protrusion covers the connecting hole to block the flow path of the slurry, and the tube body can be immediately removed and cleaned, which can prevent the slurry from overflowing along the interface between the gypsum-based self-leveling mortar mixing equipment and the feeding pipe, and can also prevent the residual slurry in the tube body from drying and clogging, causing the problem that it cannot be used again. It is easy to operate and the fluidity test result is accurate.

[0017] The utility model is an easy sampling system for gypsum-based self-leveling mortar slurry. Each tube body is mounted one by one in the mounting hole on the mounting plate sealed at the inner end of the movable tube head, and then fixedly mounted on the movable connecting tube through the movable tube head. The rotating movable connecting tube can drive the tube body to rotate at the same time, so that the target tube body is connected to the connecting hole on the partition plate, and the sampling operation is convenient and easy to control.

[0018] The utility model provides an easy sampling system for gypsum-based self-leveling mortar slurry. The end of each pipe body is provided with a mounting flange, and the mounting hole on the mounting plate is a countersunk hole. The mounting flange cooperates with the countersunk hole, so that each pipe body can be fixed together with the movable pipe head and the movable connecting tube more tightly.

[0019] The utility model provides an easy sampling system for gypsum-based self-leveling mortar slurry. The fixed pressing cylinder fixedly arranged in the fixing nut can press the second flange arranged on the fixed pipe head onto the partition, so that the fixed connecting cylinder is tightly fixed on the partition, thereby preventing leakage between the fixed connecting cylinder and the partition.

[0020] The utility model discloses an easy sampling system for gypsum-based self-leveling mortar slurry. A hexagonal surface is convexly provided on the middle part of the outer peripheral surface of a rotating drum. The hexagonal surface serves as a force application point. When the rotating drum needs to be rotated, the hexagonal surface can be rotated by hand or with a wrench. The operation is convenient and labor-saving.

[0021] The utility model discloses an easy sampling system for gypsum-based self-leveling mortar slurry. Both the fixed connecting tube and the movable connecting tube are assembled by limiting the ring grooves on their own outer peripheral surfaces with the shrinkage edges of the two ends of the rotating tube. The cooperation between the ring grooves and the shrinkage edges can not only limit the axial position of the fixed connecting tube and the movable connecting tube and the rotating tube, but also make the fixed connecting tube and the movable connecting tube and the rotating tube fit tightly together to prevent leakage.

[0022] The utility model discloses an easy sampling system for gypsum-based self-leveling mortar slurry, wherein the sealing plates at both ends of the outer cylinder of the sampler are respectively provided with a feed port and a discharge port, a sliding sleeve is provided on the outer sliding sealing sleeve of the piston rod, a flexible plate is fixedly provided at the inner end of the sliding sleeve, the flexible plate is attached to the piston or away from the piston during the sliding process of the sliding sleeve, the outer end sliding seal of the sliding sleeve extends out of the corresponding sealing plate, a positioning structure is provided between the sliding sleeve and the piston rod to keep the sliding sleeve and the piston rod moving together after the flexible plate and the piston are attached or separated, and a through hole is arranged on the outer edge of the piston. The sliding sleeve is pulled outward to make the flexible plate away from the piston, and then water or cleaning liquid is injected into the inner part of the outer cylinder from the discharge port, the flexible plate is deformed by the stamping of the water or cleaning liquid, and the water or cleaning liquid can flow from the gap between the deformed flexible plate and the outer cylinder to the piston, and flow from the through hole to the sealing plate in the direction of the feed port. Afterwards, water or cleaning liquid flows from the through holes arranged on the outer edge of the piston to the feed port and flows out from the feed port, so that the inside of the outer cylinder is cleaned, and the cleaning process is convenient and easy to operate.

[0023] The utility model discloses an easy sampling system for gypsum-based self-leveling mortar slurry, wherein the positioning structure is composed of an elastic card arranged on a piston rod and an opening provided on a sliding sleeve. The sliding sleeve is pushed and pulled so that the protrusion on the elastic card is inserted into the opening provided on the sliding sleeve or is released from the sliding sleeve and pressed against the port of the sliding sleeve, thereby making the flexible plate fit in the piston or be separated from the piston.

[0024] The utility model discloses a pipe joint of an easy sampling system for gypsum-based self-leveling mortar slurry, comprising a rotating cylinder in the middle, and a fixed connecting cylinder and a movable connecting cylinder arranged at both ends of the rotating cylinder. A connecting hole is provided on the partition of the rotating cylinder, and a sealing protrusion extending toward the center of the inner hole is provided on the inner end of the fixed connecting cylinder. The sealing protrusion and the partition seal are rotated to cover the connecting hole. After sampling, the rotating cylinder is rotated to make the sealing protrusion cover the connecting hole, thereby preventing the slurry from flowing out. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment:

[0026] Figure 1 It is a front view of an embodiment of the easy sampling system for gypsum-based self-leveling mortar slurry of the utility model;

[0027] Figure 2 for Figure 1 A cross-sectional view of

[0028] Figure 3 for Figure 1 A top view of

[0029] Figure 4 A three-dimensional diagram of an embodiment of the easy sampling system for gypsum-based self-leveling mortar slurry of the utility model;

[0030] Figure 5 It is an exploded view of an embodiment of the easy sampling system for gypsum-based self-leveling mortar slurry of the utility model;

[0031] Figure 6 It is a front view of the pipe joint of the easy sampling system of the gypsum-based self-leveling mortar slurry of the utility model;

[0032] Figure 7 for Figure 6 A cross-sectional view of

[0033] Figure 8 for Figure 6 Bottom view of

[0034] Fig. 9 for Figure 6 A top view of

[0035] Fig.10 A three-dimensional view of a pipe joint of the easy sampling system for gypsum-based self-leveling mortar slurry of the utility model in one direction;

[0036] Fig.11 A three-dimensional view of the pipe joint of the easy sampling system for gypsum-based self-leveling mortar slurry of the utility model in another direction;

[0037] Fig.12 for Figure 1 A front view of the middle rotating cylinder;

[0038] Fig.13 for Fig.10 A cross-sectional view of

[0039] Fig.14 for Figure 1 A perspective view of the rotating drum;

[0040] Fig.15 for Figure 1 The assembly stereogram of the middle movable pipe head and the clinker pipe;

[0041] Fig.16 for Figure 1 A stereoscopic view of the movable tube head in FIG.

[0042] Fig.17 for Figure 1 A stereogram of a fixed pipe head in FIG.

[0043] Fig.18 for Figure 1 A schematic diagram of the three-dimensional structure of the movable nut or the fixed nut;

[0044] Fig.19 A three-dimensional diagram of an embodiment of the utility model;

[0045] Fig. 20 for Fig.19 A schematic diagram of a three-dimensional structure in which the flexible plate is fixed on the sliding sleeve;

[0046] Fig.21 for Fig.19 A schematic diagram of the three-dimensional structure of the piston and the piston rod;

[0047] Fig. 22 for Fig.19 Schematic diagram of the three-dimensional structure of the flexible plate attached to the piston;

[0048] Fig.23 for Fig.19 Schematic diagram of the three-dimensional structure in which the flexible plate and the piston are separated.

[0049] Markings in the figure: 1. outer cylinder, 2. sealing plate, 4. discharge port, 5. piston, 6. piston rod, 7. sliding sleeve, 8. flexible plate, 9. through hole, 10. elastic card, 11. opening, 12. protrusion, 13. accommodating groove, 14. shaft ring, 15. positioning nut, 16. recess, 17. reinforcement ring, 18. material pipe, 19. hand-pull shaft ring, 21. material conveying pipe, 22. rotating cylinder, 23. fixed connecting cylinder, 24. movable connecting cylinder, 25. partition, 26. communicating hole, 27. sealing protrusion, 28. matching plate, 29. transition hole, 30. fixed pipe head, 31. movable pipe head, 32. mounting plate, 33. mounting hole, 34. movable nut, 35. first flange pressure, 36. movable clamping cylinder, 37. mounting flange, 39. fixing nut, 40. second flange, 41. fixed clamping cylinder. DETAILED DESCRIPTION

[0050] In order to make the technical purpose, technical solution and beneficial effects of the utility model clearer, the technical solution of the utility model is further described below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations.

[0051] The specific embodiment of the easy sampling system for gypsum-based self-leveling mortar slurry involved in the utility model is as follows: Figure 1-Figure 18In the embodiment, a sampler is provided for use with the sampler. A feed port and a discharge port 4 are provided at both ends of the sampler. The discharge port 4 is connected to a fluidity test mold cylinder (not shown in the figure). A group of feed pipes are connected to the feed port. Each tube body in a group of feed pipes is connected to the feed port of the sampler for conveying slurry to the sampler. The number of the feed pipes in this group is five. One end of each feed pipe 21 is connected to the feed port. The other end of each feed pipe 21 is connected to a pipe joint. The pipe joint includes a rotating cylinder 2 in the middle. 2. The two ends of the rotating cylinder 22 are rotatably provided with a fixed connection cylinder 23 and a movable connection cylinder 24, that is, the fixed connection cylinder 23 and the movable connection cylinder 24 can rotate relative to the rotating cylinder 22, the fixed connection cylinder 23 and the movable connection cylinder 24 are both axially limited and assembled with the rotating cylinder 22, the inner ends of the fixed connection cylinder 23 and the movable connection cylinder 24 extend into the rotating cylinder 22, the inner hole of the rotating cylinder 22 is separated by a partition 25, and a connecting hole 26 is opened on the partition 25, and the inner hole of the fixed connection cylinder 23 is provided with a connecting hole 26. The end of the movable connecting cylinder 24 is provided with a sealing protrusion 27 extending toward the center of the inner hole. The sealing protrusion 27 and the partition plate 25 are sealed and rotated to cover the connecting hole 26. The rotating cylinder 22 is rotated to make the sealing protrusion 27 cover the connecting hole 26, so that the flow path of the slurry can be blocked to stop sampling. The inner end of the movable connecting cylinder 24 is sealed with a matching plate 28. The matching plate 28 and the partition plate 25 are sealed and rotated. The matching plate 28 is provided with a transition hole 29 that can be connected to the connecting hole 26 alone. The outer end of the fixed connecting cylinder 23 is fixedly connected with A fixed pipe head 30 is provided, and the other end of the fixed pipe head 30 is used to be connected to the material bin of the gypsum-based self-leveling mortar mixing equipment to be sampled. Each feed pipe 21 is fixedly assembled with the movable connecting cylinder 24 and is connected with each transition hole 29 one by one. That is to say, the port at one end of each feed pipe 21 corresponds to the transition hole 29 one by one. By rotating the movable connecting cylinder 24 to align a transition hole 29 with the connecting hole 26, the feed pipe 21 corresponding to the transition hole 29 can be connected to the connecting hole 26.

[0052] When in use, first assemble the easy sampling system of the gypsum-based self-leveling mortar slurry, connect the feed port of the sampler with the feed pipe 21, rotate the rotating cylinder 22 so that the sealing protrusion 27 covers the connecting hole 26 to block the flow path of the slurry, and fix the end of the fixed pipe head 30 away from the rotating cylinder 22 on the gypsum-based self-leveling mortar mixing equipment to fix the fixed connecting cylinder 23 on the feed port of the gypsum-based self-leveling mortar mixing equipment; when sampling, rotate the movable connecting cylinder 24, a feed pipe 21 is connected to the connecting hole 26, rotate the rotating cylinder 22 so that the sealing protrusion 27 avoids the connecting hole 26, and the sampler can be used for sampling; after sampling, rotate the rotating cylinder 22 so that the sealing protrusion 27 covers the connecting hole 26 to block the flow path of the slurry. In the actual construction process, the result of the first sampling test may not be ideal. At this time, it is necessary to use the gypsum-based self-leveling mortar mixing equipment to stir the slurry again and take samples again. In the process of stirring the slurry, since the sealing protrusion 27 covers the connecting hole 26, the fixed connecting cylinder 23 is not connected to the rotating cylinder 22 and the feed pipe 21 connected thereto, but is connected to the gypsum-based self-leveling mortar mixing equipment. The fixed connecting cylinder 23 is shorter in axial direction and thicker in radial direction. In the process of stirring the slurry by the gypsum-based self-leveling mortar mixing equipment, the residual slurry therein will revolve and interact with the slurry in the gypsum-based self-leveling mortar mixing equipment, thereby maintaining their water-powder ratio. Maintain consistency; when sampling again, rotate the movable connecting cylinder 24 to connect the other feeding pipe 21 to the connecting hole 26, rotate the rotating cylinder 22 to make the sealing protrusion 27 avoid the connecting hole 26, and the sampler can be used to sample again, and no cleaning is required during a sampling cycle; after the second sampling is completed, rotate the rotating cylinder 22 to make the sealing protrusion 27 cover the connecting hole 26, so as to block the flow path of the slurry again. After a sampling cycle is completed, only the movable connecting cylinder 24 and the feeding pipe 21 need to be removed for cleaning, which is easy to operate; the easy sampling system for gypsum-based self-leveling mortar slurry can be fixedly installed on gypsum-based self-leveling mortar mixing equipment without frequent disassembly and assembly.

[0053] Specifically, each feed pipe is fixedly assembled with the movable connecting tube 24 through a movable tube head 31. The inner end of the movable tube head 31 is fixedly extended into the outer end of the movable connecting tube 24. The inner end of the movable tube head 31 is sealed with a mounting plate 32. The mounting plate 32 is provided with mounting holes 33. The number of mounting holes 33 is consistent with that of the feed pipes. Each feed pipe 21 is assembled in each mounting hole 33 one by one. A movable nut 34 is screwed on the outer end of the movable connecting tube 24. A movable clamping tube 36 is fixedly arranged inside the movable nut 34, which is sleeved on the outer side of the movable tube head 31 and presses the first flange 35 provided on the movable tube head 31 against the partition 25.

[0054] Specifically, each feed pipe 21 is provided with a mounting flange 37 at its end, and the mounting hole is a countersunk hole. Each feed pipe is fixedly assembled with the movable connecting tube 24 through its respective mounting flange 37, and the mounting flange 37 is pressed and arranged between the matching plate 28 and the step surface of the respective corresponding countersunk hole. The matching between the mounting flange 37 and the countersunk hole belongs to the prior art and is well known to those skilled in the art, and will not be described in detail here.

[0055] Specifically, the fixed pipe head 30 is fixedly assembled with the fixed connection tube 23 through the fixing nut 39, the fixing nut 39 is threadedly screwed on the outer peripheral surface of the fixed connection tube 23, and a fixing pressing tube 41 is fixedly arranged inside the fixing nut 39, which is sleeved outside the fixed pipe head 30 and presses the second flange 40 provided on the fixed pipe head 30 against the partition 25. In other words, the second flange 40 is provided on the fixed pipe head 30, and the fixing pressing tube 41 is fixedly arranged inside the fixing nut 39. When the fixing nut 39 fixes the fixed pipe head 30 on the fixed connection tube 23, the fixing pressing tube 41 presses the second flange 40 against the fixed connection tube 23, so that the fixed pipe head 30 is tightly fixed on the fixed connection tube 23.

[0056] Specifically, a hexagonal surface is convexly provided in the middle of the outer peripheral surface of the rotating cylinder 22. In other words, the outer peripheral surface of the rotating cylinder 22 is hexagonal.

[0057] Specifically, the fixed connection cylinder 23 and the movable connection cylinder 24 are assembled with the rotating cylinder 22 through the constricted edges (not shown in the figure) at the two ends of the rotating cylinder 22, and the outer circumferential surfaces of the fixed connection cylinder 23 and the movable connection cylinder 24 are respectively provided with annular grooves (not shown in the figure) for the corresponding constricted edges to be rotatably embedded. The cooperation between the constricted edges and the annular grooves belongs to the prior art and is well known to those skilled in the art, and will not be described in detail here.

[0058] Specifically, in the examples 19-23, sealing plates 2 are provided at both ends of the outer cylinder 1 of the sampler, and the two sealing plates 2 isolate the inner cavity of the outer cylinder 1 from the outside; a feed port is provided on one of the sealing plates 2, and a discharge port 4 is provided on the other sealing plate 2. When sampling, the gypsum-based self-leveling mortar to be sampled enters the outer cylinder 1 from the feed port, and the obtained gypsum-based self-leveling mortar sample enters the fluidity test mold cylinder from the discharge port 4. A piston 5 is slidably mounted in the outer cylinder 1, and a piston rod 6 extending from the sealing plate 2 of the discharge port 4 is provided on one end face of the piston 5. The piston 5, the piston rod 6 and the outer cylinder 1 form a conventional structure similar to a syringe, and a sliding sealing sleeve is provided on the outer side of the piston rod 6. A sliding sleeve 7 is provided on the inner end of the sliding sleeve 7. A flexible plate 8 is fixedly provided. The flexible plate 8 is attached to or away from the piston 5 during the sliding process of the sliding sleeve 7. When the flexible plate 8 is attached to the piston 5, the two together form a conventional piston structure; the outer end sliding seal of the sliding sleeve 7 extends out of the corresponding sealing plate 2, and the sliding A positioning structure is provided between the sleeve 7 and the piston rod 6 to keep the sliding sleeve 7 and the piston rod 6 moving together after the flexible plate 8 and the piston 5 are attached or separated. The positioning structure is an elastic card 10 provided on the piston rod 6 and an opening 11 provided on the sliding sleeve 7. The elastic card 10 is provided with a protrusion 12 that can be inserted into the opening 11. One end of the elastic card 10 is integrally provided on the piston rod 6, and the other end is freely suspended. The piston rod 6 is provided with a receiving groove 13 for the elastic card 10 to be elastically pressed into. After the protrusion 12 escapes from the sliding sleeve 7, it is pressed against the port of the sliding sleeve 7. When the protrusion 12 on the elastic card 10 is inserted into the opening 11, the flexible plate 8 is separated from the piston 5. When the protrusion 12 on the elastic card 10 is pressed against the port of the sliding sleeve 7, the flexible plate 8 is fitted with the piston 5. The outer edge of the piston 5 is provided with a through hole 9. When the flexible plate 8 is fitted with the piston 5, the through hole 9 is blocked by the flexible plate 8. When the flexible plate 8 is separated from the piston 5, the through hole 9 is in a free state and can allow air or liquid to flow.

[0059] When using the sampler to extract gypsum-based self-leveling mortar, first adjust the sliding sleeve 7 so that the protrusion 12 on the elastic card 10 is pressed against the port of the sliding sleeve 7. At this time, the flexible plate 8 fits the piston 5, and the through hole 9 on the piston 5 is blocked by the flexible plate 8. The flexible plate 8 and the piston 5 together constitute a piston in the conventional sense; then connect each feed port with a group of delivery pipes 21 one by one, and pull the piston rod 6 outward. The so-called outside refers to the side where the piston rod 6 extends out of the discharge port 4. On the contrary, the side opposite to it is the inside. At this time, the atmospheric pressure in the cavity of the outer cylinder 1 between the piston 5 and the feed port becomes smaller. The gypsum-based self-leveling mortar mixing equipment in the gypsum-based self-leveling mortar mixing equipment flows from the material collection point through the corresponding delivery pipe 21 to the feed port and then flows into the outer cylinder 1 under the action of atmospheric pressure. The gypsum-based self-leveling mortar mixing equipment is a prior art, which is a container for mixing gypsum-based self-leveling mortar. After the outer cylinder 1 is filled with slurry, the piston rod 6 is pushed inward. At this time, the flexible plate 8 is pressed in the opposite direction by the slurry and deformed, and cannot fit on the piston 5. The through hole 9 on the piston 5 is in a free state because it is not blocked by the flexible plate 8. The slurry flows from the through hole 9 into the cavity between the piston 5 and the discharge port 4. When the piston rod 6 is pushed to the end, the cavity between the piston 5 and the discharge port 4 is in the maximum state and is filled with slurry. Then the piston rod 6 is pulled outward again. At this time, the flexible plate 8 is squeezed by the slurry and fits with the piston 5 again. The through hole 9 on the piston 5 is blocked by the flexible plate 8 again. The flexible plate 8 and the piston 5 still constitute a piston in the conventional sense. The slurry is squeezed out from the discharge port 4 and then flows into the fluidity test mold cylinder for fluidity testing. After sampling, the elastic card 10 is pressed into the receiving groove 13 and the sliding sleeve 7 is adjusted so that the protrusion 12 on the elastic card 10 is inserted into the opening 11. At this time, the flexible plate 8 is separated from the piston 5, and the through hole 9 on the piston 5 is in a free state; water or cleaning liquid is injected into the outer cylinder 1 from the discharge port 4, and the flexible plate 8 is deformed by the punching of the water or cleaning liquid. The water or cleaning liquid can flow from the gap between the deformed flexible plate 8 and the outer cylinder 1 to the piston 5, and then flow from the through hole 9 arranged on the outer edge of the piston 5 to the feed port and out from the feed port, while taking out the slurry remaining in the outer cylinder 1. In this way, the inside of the outer cylinder 1 is cleaned; this cleaning process can also push and pull the piston rod 6 at the same time, so that the flexible plate 8 and the piston 5 slide back and forth inside the outer cylinder 1, so as to clean it more thoroughly.

[0060] Specifically, the flexible board 8 is fixed to the sliding sleeve 7 through a collar 14 provided on the inner end of the sliding sleeve 7, the flexible board 8 is pressed against the collar 14, and a positioning nut 15 for pressing the flexible board 8 against the collar 14 is fixed on the sliding sleeve 7. In other words, the collar 14 and the positioning nut 15 fix the flexible board 8 to the inner end of the sliding sleeve 7.

[0061] Specifically, the piston 5 is provided with a recess 16 for accommodating the collar 14. After the protrusion 12 on the elastic card 10 is inserted into the opening 11 of the sliding sleeve 7, the flexible plate 8 is close to the piston 5, but the collar 14 is between the flexible plate 8 and the piston 5, so that the two are not closely attached. After the collar 14 at the inner end of the piston rod 6 is inserted into the recess 16 on the piston 5, the flexible plate 8 can be closely attached to the piston 5.

[0062] Specifically, the edge of the flexible board 8 has a reinforcement ring 17 . The reinforcement ring 17 is used to increase the strength of the flexible board 8 .

[0063] Specifically, the reinforcing ring 17 is located on the side of the flexible plate 8 away from the piston 5. In this way, when the flexible plate 8 and the piston 5 are fitted together, the two can fit more closely.

[0064] Specifically, a material pipe 18 is connected to the material outlet 4. When sampling, the material pipe 18 can be used for the slurry to flow; when cleaning, the material pipe 18 can be used for the water or cleaning liquid to flow.

[0065] Specifically, a hand-pull collar 19 is provided on the outer end of the piston rod 6. The hand-pull collar 19 can increase the force-bearing area of ​​the piston rod 6, making it more labor-saving to push and pull the piston rod 6.

[0066] Specifically, the sliding sleeve 7 is anti-rotationally matched with the piston rod 6. This anti-rotationally matched structure enables the sliding sleeve 7 to slide only along the axial direction of the piston rod 6, but not radially, and can ensure that the protrusion 12 on the elastic card 10 is accurately inserted into the opening 11 on the sliding sleeve 7 when needed to prevent the two from being misaligned.

[0067] Specifically, the sliding sleeve 7 cooperates with the piston rod 6 to prevent rotation through a sliding bar (not shown in the figure) arranged on its inner wall. An axially extending sliding groove (not shown in the figure) is provided on the piston rod 6. The sliding bar and the sliding groove are slidably cooperated. This is a commonly used anti-rotation structure and will not be described in detail here.

[0068] Specifically, the edge of the flexible board has a reinforcement ring 17 , which is used to increase the strength of the flexible board 8 .

[0069] The specific embodiment of the pipe joint of the easy sampling system of the gypsum-based self-leveling mortar slurry involved in the utility model is composed of a rotating cylinder 22 in the middle and a fixed connecting cylinder 23 and a movable connecting cylinder 24 which are respectively rotatably arranged at the two ends of the rotating cylinder 22. The fixed connecting cylinder 23 and the movable connecting cylinder 24 are both axially limitedly assembled with the rotating cylinder 22. The inner ends of the fixed connecting cylinder 23 and the movable connecting cylinder 24 extend into the rotating cylinder 22. A partition plate 25 is provided in the inner hole of the rotating cylinder 22. A connecting hole 26 is provided on the partition plate 25. The inner end of the fixed connecting cylinder 23 is provided with a connecting hole 26 extending toward the center of the inner hole. The sealing protrusion 27 is extended, and the sealing protrusion 27 and the partition plate 25 are sealed and rotated to cover the connecting hole 26. The rotating cylinder 22 is rotated to make the sealing protrusion 27 cover the connecting hole 26, so as to block the flow path of the slurry. The inner end of the movable connecting cylinder 24 is sealed with a matching plate 28, and the matching plate 28 and the partition plate 25 are sealed and rotated. The matching plate 28 is provided with a transition hole 29 that can be connected with the connecting hole 26 separately. The movable connecting cylinder 24 is rotated to make a transition hole 29 align with the connecting hole 26, so that the transition hole 29 is connected with the connecting hole 26 to provide a flow path for the slurry when sampling.

[0070] In the above embodiment, a movable nut is screwed onto the outer end of the movable connecting tube, and the movable nut presses the movable tube head onto the partition. In other embodiments, the movable nut may not be provided, but the movable connecting tube may be clamped onto the partition in a clamping manner.

[0071] In the above embodiments, each feed pipe is fixedly assembled with the movable connecting tube through the cooperation of its own mounting flange and countersunk hole. In other embodiments, the mounting flange may not be provided, but a sealing ring is provided between the port of each feed pipe and the outer edge of the mounting hole, and the two are pressed against the sealing ring to form a sealing fit.

[0072] In the above-mentioned embodiment, the fixed pipe head is fixedly assembled with the fixed connecting tube by means of a fixing nut. In other embodiments, the fixing nut may not be provided, but the fixed pipe head and the fixed connecting tube may be clamped together.

[0073] In the above embodiment, a hexagonal surface is convexly provided in the middle of the outer circumference of the rotating drum. In other embodiments, the outer circumference of the rotating drum may also be a cylindrical surface or other polygonal surfaces.

[0074] In the above-mentioned embodiment, a sampler with a flexible plate is used. In other embodiments, a sampler in the prior art may also be used for sampling.

[0075] In the above embodiment, the positioning structure that keeps the sliding sleeve and the piston rod moving together after the flexible plate and the piston are fitted or separated is an elastic card with a protrusion provided on the piston rod and an opening opened on the sliding sleeve. In other embodiments, the elastic card with a protrusion and the opening on the sliding sleeve may not be provided, but a threaded structure may be provided between the sliding sleeve and the piston rod, such as mutually matching threads are provided on the inner wall of the sliding sleeve and the outer wall of the piston rod respectively. When the sliding sleeve rotates inwardly relative to the piston rod, the flexible plate and the piston are fitted; when the sliding sleeve rotates outwardly relative to the piston rod, the flexible plate and the piston are separated.

[0076] In the above-mentioned embodiment, the edge of the flexible board has a reinforcement ring, but in other embodiments, the reinforcement ring may not be provided.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate but not to limit the technical solutions of the present invention, and any equivalent substitutions of the present invention and any modifications or partial substitutions that do not depart from the spirit and scope of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. An easy sampling system for gypsum-based self-leveling mortar slurry, comprising a sampler, wherein both ends of the sampler are respectively provided with a feed port and a discharge port, and the characteristics are: The feed port is connected to a feed pipe, which comprises a group of pipe bodies, one end of each pipe body is connected to the feed port, and the other end of each pipe body is connected to a pipe joint. The pipe joint comprises a rotating cylinder in the middle, and a fixed connecting cylinder and a movable connecting cylinder are rotatably arranged at both ends of the rotating cylinder, and the fixed connecting cylinder and the movable connecting cylinder are both axially limitedly assembled with the rotating cylinder, and the inner ends of the fixed connecting cylinder and the movable connecting cylinder extend into the rotating cylinder, and a partition is provided in the inner hole of the rotating cylinder, and a connecting hole is provided on the partition, and a sealing protrusion extending toward the center of the inner hole is provided at the inner end of the fixed connecting cylinder, and the sealing protrusion and the partition seal rotationally cooperate to cover the connecting hole, and the inner end of the movable connecting cylinder is sealed with a matching plate, and the matching plate and the partition seal rotationally cooperate, and a transition hole that can be connected to the connecting hole separately is arranged on the matching plate, and a fixed pipe head is fixedly connected to the outer end of the fixed connecting cylinder, and the other end of the fixed pipe head is used to be connected to the sampled material bin, and each pipe body is fixedly assembled with the movable connecting cylinder and is connected to each transition hole one by one.

2. The easy sampling system for gypsum-based self-leveling mortar slurry according to claim 1, characterized in that: The tube bodies are fixedly assembled with the movable connecting tube through the movable tube head. The inner end of the movable tube head is locked and extends into the outer end of the movable connecting tube. The inner end of the movable tube head is sealed with a mounting plate. The mounting plate is provided with mounting holes. The tube bodies are assembled in the mounting holes one by one. The outer end of the movable connecting tube is threaded with a movable nut. A movable clamping tube is fixedly arranged inside the movable nut and is sleeved on the outside of the movable tube head and presses the first flange arranged on the movable tube head onto the partition.

3. The easy sampling system for gypsum-based self-leveling mortar slurry according to claim 2, characterized in that: The end of each tube body is provided with a mounting flange, and the mounting hole is a countersunk hole. Each tube body is fixedly assembled with a movable connecting tube through its own mounting flange, and the mounting flange is pressed between the matching plate and the step surface of the corresponding countersunk hole.

4. The easy sampling system for gypsum-based self-leveling mortar slurry according to claim 3 is characterized in that: The fixed pipe head is fixedly assembled with the fixed connecting tube through a fixing nut, the fixing nut thread is screwed on the outer peripheral surface of the fixed connecting tube, and a fixed pressing tube is fixedly arranged inside the fixing nut, which is sleeved on the outside of the fixed pipe head and presses the second flange arranged on the fixed pipe head onto the partition.

5. The easy sampling system for gypsum-based self-leveling mortar slurry according to claim 4, characterized in that: A hexagonal surface is convexly provided in the middle of the outer peripheral surface of the rotating cylinder.

6. The easy sampling system for gypsum-based self-leveling mortar slurry according to claim 5, characterized in that: The fixed connection tube and the movable connection tube are assembled with the rotating tube axially through the shrinkage edges at the two ends of the rotating tube. The outer circumferences of the fixed connection tube and the movable connection tube are respectively provided with annular grooves for the corresponding shrinkage edges to rotatably embed.

7. The easy sampling system for gypsum-based self-leveling mortar slurry according to any one of claims 1 to 6, characterized in that: The sampler includes an outer cylinder, both ends of which are sealed with sealing plates, a feed port and a discharge port are respectively arranged on the two sealing plates, a piston is slidably mounted in the outer cylinder, a piston rod extending from the sealing plate of the discharge port is arranged on one end face of the piston, a sliding sleeve is arranged on the outer sliding sealing sleeve of the piston rod, a flexible plate is fixedly arranged on the inner end of the sliding sleeve, the flexible plate is attached to or away from the piston during the sliding process of the sliding sleeve, the outer end sliding seal of the sliding sleeve extends out of the corresponding sealing plate, a positioning structure is arranged between the sliding sleeve and the piston rod for keeping the sliding sleeve and the piston rod moving together after the flexible plate is attached to or separated from the piston, and through holes are arranged on the outer edge of the piston.

8. The easy sampling system for gypsum-based self-leveling mortar slurry according to claim 7, characterized in that: The positioning structure is an elastic card arranged on the piston rod, one end of the elastic card is integrally arranged on the piston rod, and the other end is freely suspended. An opening is provided on the sliding sleeve, and a protrusion that can be inserted into the opening is convexly provided on the elastic card. A receiving groove for the elastic card to be elastically pressed into is provided on the piston rod, and the protrusion is pressed against the port of the sliding sleeve after being released from the sliding sleeve.

9. The easy sampling system for gypsum-based self-leveling mortar slurry according to claim 8, characterized in that: The edge of the flexible plate is provided with a reinforcement ring.

10. A pipe joint for an easy sampling system of a gypsum-based self-leveling mortar slurry, characterized in that: It includes a rotating cylinder in the middle, and a fixed connecting cylinder and a movable connecting cylinder are rotatably arranged at both ends of the rotating cylinder, and the fixed connecting cylinder and the movable connecting cylinder are both axially limitedly assembled with the rotating cylinder, and the inner ends of the fixed connecting cylinder and the movable connecting cylinder extend into the rotating cylinder, and a partition is provided in the inner hole of the rotating cylinder, and a connecting hole is provided on the partition, and a sealing protrusion extending toward the center of the inner hole is provided on the inner end of the fixed connecting cylinder, and the sealing protrusion and the partition seal are rotatably matched to cover the connecting hole, and a matching plate is sealed at the inner end of the movable connecting cylinder, and the matching plate is rotatably matched with the partition seal, and a transition hole that can be independently connected with the connecting hole is arranged on the matching plate.

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