Sampling device for gypsum-based self-leveling mortar slurry

Abstract

The utility model relates to a sampling device for gypsum-based self-leveling mortar slurry, which is characterized in that sealing plates are arranged at two ends of an outer cylinder in a sealing manner, one sealing plate is provided with a feed port, the other sealing plate is provided with a discharge port, a piston is assembled in the outer cylinder in a sliding manner, one end face of the piston is provided with a piston rod extending out of the sealing plate of the discharge port, and the other end face of the piston is provided with a discharge port. The piston rod is sleeved with a sliding sleeve in a sliding and sealing mode, a flexible plate is fixedly arranged at the inner end of the sliding sleeve and attached to the piston or away from the piston in the sliding process of the sliding sleeve, and the outer end of the sliding sleeve extends out of the corresponding sealing plate in a sliding and sealing mode. A positioning structure for keeping the sliding sleeve and the piston rod to move together after the flexible plate is attached to or separated from the piston is arranged between the sliding sleeve and the piston rod, and through holes are distributed in the outer edge of the piston. The flexible plate of the sampling device for the gypsum-based self-leveling mortar slurry can be far away from the piston in the sliding process of the sliding sleeve, water or cleaning liquid can pass through a gap formed by compression deformation of the flexible plate and a through hole in the piston, and the interior of the outer cylinder is convenient to clean.

Description

Technical Field

[0001] The utility model relates to a sampling device for gypsum-based self-leveling mortar slurry, which is 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 building chemical additives in the factory. 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 gypsum-based self-leveling mortar slurry after adding water and stirring, and conduct a fluidity test on the obtained samples to obtain a gypsum-based self-leveling mortar slurry that meets the fluidity 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. 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 barrel 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] The sample feeding device can sample the stirred gypsum-based self-leveling mortar slurry, and then pour the sample into the fluidity test mold for fluidity testing. However, the interior of the sample feeding device is not easy to clean, and the residual gypsum-based self-leveling mortar slurry in it will slowly harden, which will affect the re-sampling and test results. Utility Model Content

[0005] The utility model aims to provide a sampling device for gypsum-based self-leveling mortar slurry, so as to solve the problem that the gypsum-based self-leveling mortar slurry sampling device in the prior art is difficult to clean.

[0006] In order to solve the above problems, the sampling device of gypsum-based self-leveling mortar slurry involved in the utility model adopts the following technical scheme: a sampling device of gypsum-based self-leveling mortar slurry, comprising an outer cylinder, both ends of the outer cylinder are sealed with sealing plates, one sealing plate is provided with a feed port, and the other sealing plate is provided with a discharge port, a piston is slidably assembled in the outer cylinder, a piston rod extending from the sealing plate of the discharge port is provided on one end surface of the piston, a sliding sleeve is provided on the outer sliding sealing sleeve of the piston rod, a flexible plate is fixedly provided 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 provided between the sliding sleeve and the piston rod for keeping the sliding sleeve and the piston rod moving together after the flexible plate and the piston are attached or separated, and through holes are provided on the outer edge of the piston.

[0007] 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.

[0008] The flexible plate is fixed to the sliding sleeve through a shaft ring arranged on the inner end of the sliding sleeve, the flexible plate presses the shaft ring, and a positioning nut is fixed on the sliding sleeve to press the flexible plate onto the shaft ring.

[0009] The piston is provided with a recess for accommodating the shaft ring.

[0010] The edge of the flexible plate is provided with a reinforcement ring.

[0011] The reinforcing ring is located on a side of the flexible plate away from the piston.

[0012] The discharge port is connected with a material pipe.

[0013] The outer end of the piston rod is provided with a hand-pulled shaft ring.

[0014] The sliding sleeve is matched with the piston rod to prevent rotation.

[0015] The sliding sleeve is anti-rotationally matched with the piston rod through a sliding strip arranged on the inner wall of the sliding sleeve. An axially extending sliding groove is provided on the piston rod, and the sliding strip is slidably matched with the sliding groove.

[0016] The utility model discloses a sampling device for gypsum-based self-leveling mortar slurry. The sealing plates at both ends of the outer cylinder are respectively provided with a feed port and a discharge port. The outer sliding sealing sleeve of the piston rod is provided with a sliding sleeve. The inner end of the sliding sleeve is fixedly provided with a flexible plate. 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. The outer edge of the piston is provided with a through hole. The sliding sleeve is pulled outward to make the flexible plate away from the piston. 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. 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. After that, the water or cleaning liquid flows from the through hole arranged on the outer edge of the piston to the feed port and flows out from the feed port. In this way, the inner part of the outer cylinder is cleaned and easy to clean.

[0017] The utility model discloses a sampling device 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.

[0018] The utility model discloses a sampling device for gypsum-based self-leveling mortar slurry, wherein a recess for accommodating a shaft ring for fixing a flexible plate is arranged on the piston, and the recess can make the flexible plate and the piston fit more closely after the protrusion on the elastic card is clamped into the opening of the sliding sleeve.

[0019] The utility model discloses a sampling device for gypsum-based self-leveling mortar slurry. The edge of the flexible plate is provided with a reinforcing ring. The reinforcing ring can increase the strength of the flexible plate and make the flexible plate fit more closely on the piston.

[0020] The utility model discloses a sampling device for gypsum-based self-leveling mortar slurry, wherein the sliding sleeve cooperates with the piston rod to prevent rotation, so that the sliding sleeve can only slide along the axial direction of the piston rod, thereby ensuring that the protrusion on the elastic card is accurately inserted into the opening provided on the sliding sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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:

[0022] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0023] Figure 2 Based Figure 1 A three-dimensional view of the middle and outer cylinders;

[0024] Figure 3 for Figure 1 A three-dimensional structural schematic diagram of the sampling device in the use state;

[0025] Figure 4 for Figure 1 A three-dimensional view of the sliding sleeve in FIG.

[0026] Figure 5 for Figure 1 A schematic diagram of a three-dimensional structure in which the flexible plate is fixed on the sliding sleeve;

[0027] Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of the piston and the piston rod;

[0028] Figure 7 for Figure 1 Schematic diagram of the three-dimensional structure of the flexible plate attached to the piston;

[0029] Figure 8 for Figure 1 Schematic diagram of the three-dimensional structure in which the flexible plate and the piston are separated.

[0030] Markings in the figure: 1. outer cylinder, 2. sealing plate, 3. feed port, 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. receiving groove, 14. shaft ring, 15. positioning nut, 16. recess, 17. reinforcement ring, 18. material pipe, 19. hand-pull shaft ring, 20. gypsum-based self-leveling mortar mixing equipment. DETAILED DESCRIPTION

[0031] 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 can be arranged and designed in various different configurations.

[0032] The specific embodiment of the sampling device for gypsum-based self-leveling mortar slurry involved in the utility model is Figure 1-Figure 8In the embodiment, sealing plates 2 are provided at both ends of the outer cylinder 1, and the two sealing plates 2 isolate the inner cavity of the outer cylinder 1 from the outside; a feed port 3 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 slurry to be sampled enters the outer cylinder 1 from the feed port 3, and the obtained gypsum-based self-leveling mortar slurry 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 surface 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 on the outer side of the piston rod 6 is provided with a sliding sleeve 7. A flexible plate 8 is fixedly provided on the inner end of the sliding sleeve 7. 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 sleeve 7 and the active A positioning structure is provided between the plug rod 6 for keeping the sliding sleeve 7 and the piston rod 6 moving together after the flexible plate 8 is fitted or separated from the piston 5. The positioning structure is an elastic card 10 provided on the piston rod 6 and an opening 11 provided on the sliding sleeve 7. A protrusion 12 which can be inserted into the opening 11 is convexly provided on the elastic card 10. One end of the elastic card 10 is integrally provided on the piston rod 6, and the other end is freely suspended. A receiving groove 13 for elastically pressing the elastic card 10 is provided on the piston rod 6. The protrusion 12 is pressed against the port of the sliding sleeve 7 after it escapes from 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. A through hole 9 is arranged on the outer edge of the piston 5. 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 for air or liquid to flow.

[0033] When using the sampling device to extract gypsum-based self-leveling mortar slurry, 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 with 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 the feed port 3 with the material collection point of the matching gypsum-based self-leveling mortar mixing equipment 20, 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 opposite side is the inside. At this time, the outer cylinder 1 is in the cavity between the piston 5 and the feed port 3, and the atmospheric pressure becomes smaller. The gypsum-based self-leveling mortar slurry in the gypsum-based self-leveling mortar mixing equipment 20 flows from the material collection point to the feed port under the action of atmospheric pressure. 3, and then flows into the outer cylinder 1; 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 for fluidity test. 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 3 and out from the feed port 3, 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.

[0034] 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.

[0035] 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.

[0036] 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 .

[0037] 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.

[0038] Specifically, a material pipe 18 is connected to the material outlet 4. When sampling, the material pipe 18 can allow the slurry to flow; when cleaning, the material pipe 18 can allow water or cleaning liquid to flow in.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] In the above embodiment, the positioning structure for keeping the sliding sleeve and the piston rod moving together after the flexible plate and the piston are fitted or separated is a protruding elastic card provided on the piston rod and an opening provided on the sliding sleeve. In other embodiments, the protruding elastic card 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. Other forms of elastic positioning structures are also possible, such as positioning between an elastically retractable positioning ball and a positioning hole.

[0043] The flexible board in the above embodiment is fixed to the sliding sleeve by a specific fixing structure, and in other embodiments, it can be fixed by any other fixing structure.

[0044] The piston in the above embodiment is provided with a recess for accommodating the collar, which can ensure that the flexible board can be attached to the piston. In other embodiments, the shape of the flexible board can also be changed to ensure that it is attached to the piston. For example, a recess for accommodating the collar is provided in the center of the flexible board.

[0045] The edge of the flexible plate in the above embodiment has a reinforcement ring, which can maintain the shape of the flexible plate so that it will not warp or deform, ensuring that it can be reliably attached to the piston during operation. In other embodiments, when the rigidity of the flexible plate is sufficient, the reinforcement ring may not be provided.

[0046] The discharge port in the above-mentioned embodiment is connected with a material pipe, which may also be provided separately in other embodiments during use.

[0047] The sliding sleeve and the piston rod in the above embodiment cooperate to prevent rotation, which can ensure that the elastic card corresponds to the opening position of the sliding sleeve. In other embodiments, it may not be provided, and when in use, it only needs to be rotated and aligned.

[0048] In the above embodiment, a hand-pull collar is provided on the outer end of the piston rod. In other embodiments, the hand-pull collar may not be provided, but a hand-pull horizontal handle perpendicular to the piston rod may be provided on the outer end of the piston rod.

[0049] 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. A sampling device for gypsum-based self-leveling mortar slurry, characterized in that: The utility model comprises an outer cylinder, both ends of which are sealed with sealing plates, one sealing plate is provided with a feed port, the other sealing plate is provided with a discharge port, a piston is slidably mounted in the outer cylinder, one end face of the piston is provided with a piston rod extending from the sealing plate of the discharge port, a sliding sleeve is provided with an 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 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 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 provided at the outer edge of the piston.

2. The sampling device for gypsum-based self-leveling mortar slurry according to claim 1, 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.

3. The sampling device for gypsum-based self-leveling mortar slurry according to claim 1 or 2, characterized in that: The flexible plate is fixed to the sliding sleeve through a shaft ring arranged on the inner end of the sliding sleeve, the flexible plate presses the shaft ring, and a positioning nut is fixed on the sliding sleeve to press the flexible plate onto the shaft ring.

4. The sampling device for gypsum-based self-leveling mortar slurry according to claim 3, characterized in that: The piston is provided with a recess for accommodating the shaft ring.

5. The sampling device for gypsum-based self-leveling mortar slurry according to claim 4, characterized in that: The edge of the flexible plate is provided with a reinforcement ring.

6. The sampling device for gypsum-based self-leveling mortar slurry according to claim 5, characterized in that: The reinforcing ring is located on a side of the flexible plate away from the piston.

7. The sampling device for gypsum-based self-leveling mortar slurry according to claim 6, characterized in that: The discharge port is connected with a material pipe.

8. The sampling device for gypsum-based self-leveling mortar slurry according to claim 7, characterized in that: The outer end of the piston rod is provided with a hand-pulled shaft ring.

9. The sampling device for gypsum-based self-leveling mortar slurry according to claim 1, characterized in that: The sliding sleeve is matched with the piston rod to prevent rotation.

10. The sampling device for gypsum-based self-leveling mortar slurry according to claim 9, characterized in that: The sliding sleeve is anti-rotationally matched with the piston rod through a sliding strip arranged on the inner wall of the sliding sleeve. An axially extending sliding groove is provided on the piston rod, and the sliding strip is slidably matched with the sliding groove.

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