A device for preparing a sample of a grouting material stone

Abstract

The application discloses a kind of grouting material stone body sample preparation devices, including pouring device and curing device, the pouring device includes mould box and the combined ramper that is suspended in the mould box by lifting arm;The combined ramper includes the ramper portion that reciprocates up and down relative to the lifting arm, and the ramper portion is installed with the inlet of slurry in its top side through and in its top side guide, and the lower end of the ramper portion is provided with the rammer head cover matched with the lower end opening of the ramper portion, and the rammer head cover can be opened by pressure slurry in the ramper portion;The curing device includes curing box and water receiving component, the water receiving component includes the water receiving frame that is inclinedly arranged and several water receiving plates that are side by side arranged on the water receiving frame, and the lower side of the water receiving frame is provided with drainage pipeline leading to the outside of curing box;The application makes that grouting material stone body is even before shaping slurry and the uniformity of sample block moisture content when forming curing, so that solid body sample block test result is more accurate and reliable.

Description

Technical Field

[0001] This invention relates to the field of building material production and testing technology. Specifically, it relates to a device for preparing grouting material aggregate samples. Background Technology

[0002] Grouting is a technique that uses pressure to inject a solidified grouting material slurry into the cracks of rock, soil, or buildings through boreholes, thereby improving their physical and mechanical properties. It is widely used in engineering fields such as roads and bridges, mines, and tunnels.

[0003] Whether studying the properties of grouting materials in the laboratory or monitoring their tensile strength in actual production, it is necessary to prepare grouting material test blocks. Test block preparation mainly includes pouring the test mold and curing the test block after it solidifies and is demolded. When preparing test blocks by pouring the grouting material into the mold, for viscous grouting materials used in large-space grouting, a void will appear in the grouting material after the tamping rod is pulled out. This void is then eliminated by tapping the mold with a rubber mallet, thus expelling the air from the test block. Currently, this step is usually done manually, which is time-consuming, labor-intensive, and may result in incomplete removal of air bubbles from the test block.

[0004] The test blocks need to be cured under standard curing conditions before testing, namely a temperature of 20±2℃ and humidity above 95%. Humidity in the curing environment is generally controlled by a humidifier, but since the humidifier has only one outlet, this can cause uneven humidity levels. Furthermore, due to the high humidity, water vapor easily condenses on the top of the curing chamber and the test surfaces of the upper layer, causing uneven moisture content on the lower test blocks and affecting the mechanical performance test results. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to provide a grouting material stone body sample preparation device that ensures uniform water content of the test block.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A grouting material stone sample preparation device includes a pouring device and a curing device. The pouring device includes a mold box and a combined tamping rod suspended in the mold box by a lifting arm.

[0008] The combined tamping rod includes a tamping rod section that reciprocates up and down relative to the lifting arm; the tamping rod section is vertically connected and has a slurry inlet installed on its top periphery; the lower end of the tamping rod section is provided with a tamping head cover that matches the opening at the lower end of the tamping rod section, the tamping head cover is set inside the tamping rod section by a pull-cover spring, and the tamping head cover can be opened by the pressure slurry inside the tamping rod section.

[0009] The maintenance device includes a maintenance box, a humidifier, a spray mechanism located at the top of the maintenance box, several racks located inside the maintenance box, and a water receiving assembly mounted under the racks. The top wall of the maintenance box is inclined, and the lowest point of the top wall is located on the left and right sides of the maintenance box. The water receiving assembly includes an inclined water receiving rack and several water receiving plates arranged side by side on the water receiving rack. The water receiving plates are inclined, and a drainage pipe leading to the outside of the maintenance box is provided on the lower side of the water receiving rack. The water receiving plates are rotatably mounted inside the water receiving rack and are connected to the drainage pipe through a hollow shaft. A power assembly for driving the water receiving plates to rotate and swing is provided on one side of the maintenance box. When the water receiving plate rotates to the water receiving posture, it contacts the adjacent water receiving plate. When the water receiving plate rotates to the yielding posture, it has a minimum projection on the horizontal plane.

[0010] Furthermore, the combined tamping rod includes an upper plate and a lower plate fixed relative to the lifting arm, an upper rotating plate rotatably disposed on the lower surface of the upper plate, upper protrusions spaced apart on the lower surface of the upper rotating plate, a lower support plate fixedly disposed on the top of the tamping rod, lower protrusions spaced apart on the upper surface of the lower support plate, and a tamping rod resetting assembly disposed on the periphery of the lower support plate. The tamping rod is slidably connected to the lower plate. The upper plate is provided with a moving tamping motor that is drivenly connected to the upper rotating plate. The moving tamping motor drives the upper protrusions to rotate. The surfaces of the upper protrusions and the lower protrusions are spherical or convex arc surfaces. The rotating upper protrusions slide in contact with the lower protrusions, causing the tamping rod to reciprocate up and down.

[0011] Furthermore, the reset assembly includes a plurality of reset springs and a reset plate fixedly disposed on the outer periphery of the lower support plate. The reset springs are sandwiched between the reset plate and the lower plate, and at least one end of the reset spring is fixed to the reset plate or the lower plate.

[0012] Furthermore, the tamping rod part includes a detachable tamping head disposed at the lowest end of the tamping rod part and a tamping support disposed on the upper part of the tamping head. The lower end of the tamping head is provided with a groove that is smaller at the top and larger at the bottom. The tamping head cover is accommodated in the groove. The upper end of the pull-cover spring is fixed on the tamping support, and the lower end of the pull-cover spring is fixed on the upper surface of the tamping head cover.

[0013] Furthermore, the casting device also includes a fixed base plate, one end of which is provided with an alignment groove, the lower end of the lifting arm is fixedly disposed at the other end of the fixed base plate, and the mold box is placed in the alignment groove.

[0014] Furthermore, the water receiving frame includes a lower end shell and a higher side plate. Both ends of the water receiving plate are provided with protective edges, which slide in contact with the end shell. The hollow shaft is fixedly connected to the end shell. A side shaft is fixedly connected to the protective edge near the side plate. The side shaft is rotatably mounted on the protective edge, and a synchronous pulley is coaxially provided on the side shaft. All the synchronous pulleys are connected by the same synchronous belt. A connecting shaft is coaxially fixed to one of the side shafts, and the connecting shaft is drivenly connected to the power component.

[0015] Furthermore, the power assembly includes a switching mechanism for switching the water receiving plate between a water receiving posture and a yielding posture, and a swinging mechanism for driving the water receiving plate to swing within a certain range.

[0016] The end of the connecting shaft extends out of the side wall of the maintenance box; the switching mechanism includes a receiving protrusion at the end of the connecting shaft, a switching slide plate on one side of the receiving protrusion, and a switching motor for driving the switching slide plate to reciprocate; the side of the switching slide plate facing the receiving protrusion has a switching upper tooth that can mesh with the receiving protrusion. When the switching motor drives the switching slide plate to move, the switching upper tooth drives the connecting shaft to rotate 90 degrees by moving the receiving protrusion, thereby realizing the mutual change of the water receiving plate from the water receiving posture to the yielding posture;

[0017] The swing mechanism includes a swing assembly that provides reciprocating swing power and a transition shaft that is drively connected to the power output end of the swing assembly. The end of the transition shaft facing the connecting shaft is provided with a second part of the same structure as the first part of the connecting protrusion. The first part of the connecting protrusion and the second part of the connecting protrusion are coaxial and spaced apart. A connecting sleeve is sleeved on the second part of the connecting protrusion. The connecting sleeve is provided with a plurality of protrusions that guide and cooperate with the first part of the connecting protrusion and the second part of the connecting protrusion. A toggle ring is provided on the outer periphery of the connecting sleeve. A push-pull electromagnet is fixed on the side wall of the box. The push-pull electromagnet pushes and pulls in a direction parallel to the axis of the first part of the connecting protrusion. The telescopic end of the push-pull electromagnet is fixed with a toggle piece that can actuate the toggle ring.

[0018] Furthermore, the swing assembly includes a frame plate fixedly mounted on the side wall of the box, a turntable centrally rotatably mounted on the frame plate, a side post fixed at the edge of the turntable, a toothed plate with one end rotatably connected to the side post, a toothed disc coaxially fixed on the transition shaft, a locking pawl rotatably connected to the transition shaft, and a swing motor for driving the turntable to rotate. The transition shaft is rotatably mounted on the frame plate. The toothed plate has teeth on the side facing the toothed disc that mesh with the toothed disc. The locking pawl slides in contact with the side of the toothed plate opposite to the toothed disc.

[0019] Furthermore, the water receiving plate is V-shaped, and a water guide groove is provided in the center of the water receiving plate, extending along the length of the water receiving plate. The hollow shaft is sealed to the water guide groove.

[0020] Furthermore, the end shell is provided with a water guiding cavity, the hollow shaft is connected to the water guiding cavity, the water guiding cavity is provided with an inclined water guiding slope, and a water outlet pipe is provided at the lowest point of the water guiding slope, and the water outlet pipe is sealed and connected to the drainage pipe.

[0021] The technical solution of the present invention achieves the following beneficial technical effects:

[0022] The present invention includes a casting device and a curing device. The casting device includes a combined tamping rod with an internal slurry delivery channel. When in use, the slurry delivery channel is connected to the slurry outlet of the slurry preparation equipment. When the tamping rod is pulled out, it can promptly fill the hole formed after the tamping rod is pulled out, preventing the hole from becoming a void in the stone body. At the same time, the high-speed vibration generated by the rotation of the upper and lower protrusions can drive the grouting material in the mold box to vibrate, promote the discharge of gas in the grouting material, and make the grouting material stone body more uniform.

[0023] The curing device prevents condensed water droplets from falling onto the lower sample blocks by using the inclined top wall of the curing chamber and the water receiving rack. This helps maintain the uniformity of the moisture content of the sample blocks and ensures the authenticity of the mechanical properties of the sample blocks. At the same time, when the water receiving plate is switched to the swinging state, it can promote the downward diffusion of moisture from above, promote the uniformity of moisture in the curing chamber, and help maintain the consistency between the upper and lower samples in the curing chamber.

[0024] This invention promotes the uniformity of the grout before the grouting material is formed and the uniformity of the water content of the sample block during the forming and curing process by setting up a pouring device and a curing device, so that the test results of the solid sample block are more accurate and reliable. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the casting device according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the combined tamping rod according to an embodiment of the present invention;

[0027] Figure 3 This is a top view of the tamping head according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the maintenance device according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the water receiving assembly according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the water receiving plate according to an embodiment of the present invention;

[0031] Figure 7 This is a cross-sectional view of the end-connector shell according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the switching mechanism according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the swing mechanism according to an embodiment of the present invention.

[0034] The reference numerals in the diagram are: 1-Combined tamping rod, 2-Machine arm, 3-Powered telescopic column, 4-Fixed base plate;

[0035] 101-Upper plate, 102-Slewing bearing, 103-Upper rotating plate, 104-Upper protrusion, 105-Lower protrusion, 106-Lower support plate, 107-Reset plate, 108-Reset spring, 109-Plate support, 110-Lower plate, 111-Tamming rod section, 112-Slurry delivery channel, 113-Slurry inlet, 114-Tamming head, 115-Tamming head cover, 116-Tamming support, 117-Pull cover spring, 118-Moving tamping motor;

[0036] 5-Water receiving assembly, 51-Water receiving plate, 511-Water guide channel, 52-Edge protection, 53-Hollow shaft, 54-Connecting shaft, 541-Connecting protrusion, 55-End housing, 551-Water diversion slope, 56-Water outlet pipe, 57-Side plate, 571-Synchronous pulley, 572-Limiting pulley, 573-Synchronous belt;

[0037] 6-Power assembly, 61-Gear disc, 62-Gear plate, 63-Turntable, 64-Side post, 65-Clocking claw, 66-Oscillating motor, 67-Transition shaft, 671-Second connecting part, 68-Frame plate; 601-Switching slide plate, 602-Supporting slide plate, 603-Switching gear, 604-Switching gear shaft, 605-Connecting sleeve, 606-Actuating ring, 607-Actuating plate, 608-Push-pull electromagnet, 609-Magnetic bracket,

[0038] 7-Cure box, 701-Box side wall, 71-Top wall, 72-Spraying mechanism, 73-Support frame, 74-Mold box;

[0039] 8-Humidifier, 81-Float inlet valve, 82-Fan, 83-Mist outlet;

[0040] 9-Collection pipe, 91-Collection branch pipe, 92-Evacuum pump;

[0041] 100-Sample block. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0043] like Figures 1 to 9 As shown, a grouting material stone sample preparation device includes a pouring device and a curing device. The pouring device includes a fixed base plate 4, a mold box 74, and a combined tamping rod 1 suspended in the mold box 74 by a lifting arm. The lifting arm includes a power telescopic column 3 set at one end of the fixed base plate 4 and a machine arm 2 set at the telescopic end of the power telescopic column 3. The power telescopic column 3 can be a hydraulic lifting column. The other end of the fixed base plate 4 is provided with an alignment groove, and the mold box 74 is placed in the alignment groove. A handle can also be provided on the outer periphery of the mold box 74 to facilitate the operator to remove the mold box 74 from the alignment groove.

[0044] The combined tamping rod 1 is used to tamp the grouting material in the mold box 74. The combined tamping rod 1 includes a plate support 109 fixed on the machine arm 2, an upper plate 101 and a lower plate 110 fixed on the plate support 109, an upper rotating plate 103 rotatably disposed on the lower surface of the upper plate 101 via a slewing bearing 102, upper protrusions 104 spaced apart on the lower surface of the upper rotating plate 103, a lower support plate 106 fixedly disposed on the top of the tamping rod, lower protrusions 105 spaced apart on the upper surface of the lower support plate 106, a tamping rod reset assembly disposed on the periphery of the lower support plate 106, and a tamping rod part 111 slidably connected to the lower plate 110. The reset assembly is used to push the downwardly moved tamping rod part 111 back to its original position. The reset assembly includes several reset springs 108 and a reset plate 107 fixedly disposed on the outer periphery of the lower support plate 106. The reset springs 108 are clamped to the lower support plate 106. The reset plate 107 is located between the lower plate 110 and the reset spring 108, and at least one end of the reset spring 108 is fixed to the reset plate 107 or the lower plate 110. The grout inlet 113 is located between the reset plate 107 and the lower plate 110, and will not touch the reset plate 107 or the lower plate 110 when the tamping rod part 111 moves up and down. The upper plate 101 is provided with a tamping motor 118 that is connected to the upper rotating plate 103. The tamping motor 118 drives the upper protrusion 104 to rotate. The surfaces of the upper protrusion 104 and the lower protrusion 105 are spherical or convex arc surfaces. The rotating upper protrusion 104 and the lower protrusion 105 slide in contact, causing the tamping rod part 111 to vibrate up and down and move, tamping the viscous grouting material in the mold box 74. At the same time, the vibration drives the vibration of the grouting material in the mold box 74, which can promote the discharge of gas in the grouting material and prevent the formation of small cavities in the stone body.

[0045] The tamping rod part 111 has a vertically through-hole forming a grout delivery channel 112. The top periphery of the tamping rod part 111 is provided with a grout inlet 113. The grout inlet 113 is connected to the grouting pipe through a pipeline. The grouting pipe is the grout outlet channel of the grouting equipment. The grouting pipe delivers the grout of the grouting material to be prepared into the tamping rod part 111 through the grout inlet 113. The grout is discharged from the lower end of the tamping rod part 111 into the mold box 74. Note that the present invention is applicable to viscous grouting materials. This type of grouting material is mostly used for large space grouting.

[0046] like Figures 2 to 3 As shown, the tamping rod part 111 includes a detachable tamping head 114 disposed at the lowest end of the tamping rod part 111, a tamping support 116 disposed on the upper part of the tamping head 114, a tamping head cover 115 disposed at the lower end of the tamping rod part 111 that matches the lower opening of the grout delivery channel 112, and a pull-cover spring 117 connecting the tamping head cover 115 and the tamping support 116. The lower end of the tamping head 114 is provided with a groove that is smaller at the top and larger at the bottom. The shape of the tamping head cover 115 matches the groove so that it can be accommodated in the groove. The upper end of the pull-cover spring 117 is fixed to the tamping bracket 116, and the lower end of the pull-cover spring 117 is fixed to the upper surface of the tamping head cover 115. The tamping head cover 115 can be opened by the pressure grout in the tamping rod part 111. During the tamping process, grout is continuously injected into the mold groove through the tamping rod part 111. During the upward movement of the tamping rod, the grout opens the tamping head cover 115 and pours into the gap formed when the tamping rod is pulled out. This can prevent voids in the subsequent solidified sample block 100, which would lead to inaccurate testing of the sample block 100.

[0047] like Figure 1As shown, the curing device includes a curing box 7, a humidifier 8, a spray mechanism 72 located at the top of the curing box 7, several placement racks located inside the curing box 7, and a water receiving assembly 5 mounted under the placement racks. The top wall 71 of the curing box 7 is inclined, and the lowest point of the top wall 71 is located on the left and right sides of the curing box 7. Water droplets condensing on the top wall 71 of the curing box 7 can slide down along the inclined top wall 71 to the edge and then slide down again, preventing these water droplets from falling onto the uppermost sample block 100. The water receiving assembly 5 includes an inclined water receiving rack and several water receiving plates 51 arranged side by side on the water receiving rack. The water receiving plates 51 are inclined, and a drainage pipe leading to the outside of the curing box 7 is provided on the lower side of the water receiving rack. The water receiving plates 51 can rotate. The water receiving plate 51 is installed inside the water receiving rack and connected to the drainage pipe via a hollow shaft 53. A power assembly 6 is provided on one side of the curing box 7 to drive the water receiving plate 51 to rotate and swing. When the water receiving plate 51 rotates to the water receiving posture, it contacts the adjacent water receiving plate 51 and can collect water droplets falling from above. When the water receiving plate 51 rotates to the yielding posture, it has a minimal projection on the horizontal plane, allowing the mist above to drift downwards. When the water receiving plate 51 swings, it swings back and forth in the yielding posture, disturbing the airflow in the curing box 7, promoting the downward accelerated flow and uniform diffusion of moisture. The angle formed between the water receiving plate 51 and the horizontal plane is 10°-30°, which is greater than the minimum sliding angle of water, facilitating the collection of water droplets falling on the water receiving plate 51 before they flow out of the curing box 7.

[0048] like Figures 5 to 9 As shown, the water receiving frame includes a lower end housing 55 and a higher side plate 57. Protective edges 52 are provided at both ends of the water receiving plate 51, and these protective edges 52 slide in contact with the end housing 55. The hollow shaft 53 is fixedly connected to the end housing 55. A side shaft is fixedly connected to the protective edge 52 near the side plate 57. The side shaft is rotatably mounted on the protective edge 52, and a synchronous pulley 571 is coaxially arranged on the side shaft. All the synchronous pulleys 571 are connected by the same synchronous belt 573. To tension the synchronous belt 573, several limiting pulleys 572 are also provided on the side plate 57 between the synchronous pulleys 571. The synchronous belt 573 wraps around the limiting pulleys 572 to make itself close to the synchronous pulleys 571. A connecting shaft 54 ​​is coaxially fixed to one of the side shafts, and the connecting shaft 54 ​​is connected to the power assembly 6.

[0049] like Figures 8 to 9 As shown, the power assembly 6 includes a switching mechanism for switching the water receiving plate 51 between a water receiving posture and a yielding posture, and a swinging mechanism for driving the water receiving plate 51 to swing within a certain range.

[0050] The end of the connecting shaft 54 ​​extends out of the side wall 701 of the housing; the switching mechanism includes a connecting protrusion 541 disposed at the end of the connecting shaft 54, a switching slide plate 601 disposed on one side of the connecting protrusion 541, and a switching motor for driving the switching slide plate 601 to reciprocate; the side of the switching slide plate 601 facing the connecting protrusion 541 is provided with an upper switching tooth that can mesh with the connecting protrusion 541, and the side of the switching slide plate 601 facing away from the connecting shaft 54 ​​is provided with a lower switching tooth; the side wall 701 of the housing is provided with a switching gear 603 that meshes with the lower switching tooth; the switching motor is connected to the switching gear 603 in a transmission manner, such as... Figure 8 As shown, in this embodiment, the switching slide plate 601 is disposed below the receiving protrusion 541. A support slide plate 602 is fixedly disposed on the side wall 701 of the box. The support slide plate 602 has a certain end width and a transverse groove is opened on the switching slide plate 601. The support slide plate 602 slides in contact with the transverse groove, realizing the transverse sliding installation of the switching slide plate 601. The switching gear 603 is rotatably assembled on the side wall 701 of the box through the switching gear shaft 604. The switching gear 603 is coaxially fixed with a first bevel gear, and the switching motor is coaxially fixed with a second bevel gear. The power transmission from the switching motor to the switching slide plate 601 is carried out through the bevel gear transmission structure. The number of the upper switching teeth is limited, corresponding to one-quarter of the number of the receiving protrusion 541. When the switching motor drives the switching slide plate 601 to translate, the upper switching teeth drive the connecting shaft 54 ​​to rotate 90 degrees by turning the receiving protrusion 541, realizing the mutual change between the water receiving plate 51 from the water receiving posture to the yielding posture.

[0051] The swing mechanism includes a swing assembly that provides reciprocating swing power and a transition shaft 67 that is drively connected to the power output end of the swing assembly. One end of the transition shaft 67 facing the connecting shaft 54 ​​is provided with a second connecting protrusion 671, which has the same structure as the first connecting protrusion 541. The first connecting protrusion 541 and the second connecting protrusion 671 are coaxial and spaced apart. A connecting sleeve 605 is fitted onto the second connecting protrusion 671. The connecting sleeve 605 has several protrusions that guide and cooperate with the first connecting protrusion 541 and the second connecting protrusion 671. The outer periphery of the connecting sleeve 605... A toggle ring 606 is provided. A push-pull electromagnet 608 is fixed on the side wall 701 of the housing via a magnet bracket 609. The push-pull electromagnet 608 pushes and pulls along a direction parallel to the axis of the connecting protrusion 541. The telescopic end of the push-pull electromagnet 608 is fixed with a toggle piece 607 that can actuate the toggle ring 606. The surface of the toggle ring 606 is provided with an annular groove. One end of the toggle piece is located in the annular groove. When the toggle piece moves left and right, it pushes the left or right side wall of the annular groove respectively, thereby changing the position of the connecting sleeve 605. Figure 8 As shown, Figure 8The connecting sleeve 605 is only fitted onto the second part of the receiving protrusion 671. After the water receiving plate 51 moves to the yielding posture, the upper switching tooth on the switching slide 601 disengages from the first part of the receiving protrusion 541. At the same time, the push-pull electromagnet 608 moves the connecting sleeve 605 to the left through the toggle plate 607, so that the connecting sleeve 605 is fitted onto the first part of the receiving protrusion 541. At this time, the water receiving plate 51 enters the swing state. The swing component provides power and swings within a certain range to realize the reciprocating fan of the water receiving plate 51, promote the diffusion of moisture in the curing box 7 to the lower layer and promote more uniform moisture in the curing box 7.

[0052] like Figures 8 to 9 As shown, the swing assembly includes a frame plate 68 fixedly mounted on the side wall 701 of the box, a turntable 63 centrally rotatably mounted on the frame plate 68, a side post 64 fixed at the edge of the turntable 63, a toothed plate 62 rotatably connected at one end to the side post 64, a toothed disk 61 coaxially fixed on the transition shaft 67, a locking claw 65 rotatably connected to the transition shaft 67, and a swing motor 66 for driving the turntable 63 to rotate. The transition shaft 67 is rotatably mounted on the frame plate 68. The toothed plate 62 has teeth on the side facing the toothed disk 61 that mesh with the toothed disk 61. The locking claw 65 slides in contact with the side of the toothed plate 62 facing away from the toothed disk 61.

[0053] like Figure 8 , Figure 9 As shown, Figure 9 The positional relationship between the water receiving plate 51 and the toothed disc 61 is schematically drawn with a dotted line; the turntable 63 rotates under the drive of the swing motor 66, and then drives the lower end of the toothed plate 62 to rotate. The upper part of the toothed plate 62 is limited by the locking claw 65. While always maintaining engagement with the toothed disc 61, the toothed disc 61 is driven to swing back and forth within a range of less than 120 degrees by pulling back and forth.

[0054] like Figures 5 to 7 As shown, the water receiving plate 51 is V-shaped, and a water guide groove 511 is provided in the center of the water receiving plate 51, which runs through the length of the water receiving plate 51. The hollow shaft 53 is sealed to the water guide groove 511. The water collected by the water receiving plate 51 flows into the water guide groove 511, and the water collected in the water guide groove 511 flows into the hollow shaft 53 and is finally discharged to the outside of the maintenance box through the drainage pipe.

[0055] like Figure 7As shown, a water guiding cavity is provided inside the end shell 55, and the hollow shaft 53 is connected to the water guiding cavity. The water guiding cavity is provided with an inclined water inlet slope 551, and a water outlet pipe 56 is provided at the lowest point of the water inlet slope 551. The water outlet pipe 56 is sealed and connected to the drainage pipe, and the drainage pipe finally flows into the water storage cavity inside the humidifier 8. The drainage pipe includes a collection pipe 9 connected to the water storage cavity of the humidifier 8 and several collection branch pipes 91 connected to the collection pipe 9. The collection branch pipes 91 pass through the side wall of the maintenance box 7 and connect to the water outlet pipe 56, thus forming a connection for the water inlet. The lower end of the frame is supported by a support frame 73 on the inner wall of the other side of the maintenance box 7, which supports the side plate 57 and provides support for the lower end of the water receiving frame. The water outlet pipes 56 are respectively sealed and connected to one of the collection branch pipes 91. The water outlet pipes 56 and the collection branch pipes 91 can be connected by a plug-in method, so that after the water outlet pipes 56 are pulled off the collection branch pipes 91, the water receiving frame and the water receiving plate 51 and other components on it can be completely removed, which is convenient for the maintenance of the water receiving assembly 5. A vacuum pump 92 can also be installed at the outlet end of the collection pipe 9 to promote the discharge of water droplets in the drainage pipe using suction.

[0056] like Figure 1 As shown, the humidifier 8 controls the water level through a float inlet valve 81. The inlet of the float inlet valve 81 is connected to a water source. The ultrasonic spray blades installed in the humidifier 8 produce mist when they come into contact with water. The humidifier 8 is provided with a mist outlet 83, which is connected to the spray mechanism 72 through a pipeline. A fan 82 installed on the wall of the humidifier 8 blows air to transport the mist through the pipeline to the spray mechanism 72 in the curing box 7, increasing the humidity in the curing box 7. The spray mechanism 72 is a mist outlet pipe with several uniform spray nozzles. Similar to the conventional humidity adjustment method of the curing box 7, a hygrometer is installed in the curing box 7 to adjust the mist output according to the humidity in the curing box 7, maintaining the microenvironment in the curing box 7 within the standard curing conditions.

[0057] During the curing of sample block 100, the water receiving plate 51 is first adjusted to a yielding or swinging position. Then, the humidifier 8 is used to replenish the curing chamber 7 with mist to increase the humidity inside the curing chamber 7. After a period of time, the humidity in the upper and lower parts of the environment inside the curing chamber 7 is consistent. Then, the water receiving plate 51 is adjusted to a water receiving position to prevent water droplets on the surface of the upper sample block 100 from falling onto the lower sample, keeping the environment of the lower sample block 100 consistent with that of the upper sample block 100, and preventing a large amount of water droplets from accumulating on the surface of the sample block 100. If the humidity in the curing chamber 7 decreases, the vacuum pump 92 is first started to extract the water accumulated in the collection pipe 9, collection branch pipe 91, drain pipe, and water guide trough 511. Then, the water receiving plate 51 is switched to a yielding or swinging position to replenish moisture until the humidity reaches the standard. Then, the water receiving plate 51 is adjusted to a water receiving position. This process is repeated to ensure the consistency of humidity in the upper and lower parts of the curing chamber 7 and to prevent water droplets from the upper part from affecting the testing of the lower sample block 100.

[0058] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. An apparatus for preparing a test specimen of a cast of a grouting material, comprising a casting device and a curing device, characterized in that, The casting device includes a mold box (74) and a combined tamping rod (1) suspended in the mold box (74) by a lifting arm; The combined tamping rod (1) includes a tamping rod part (111) that moves up and down relative to the lifting arm; the tamping rod part (111) is vertically connected and has a slurry inlet (113) installed on its top periphery; the lower end of the tamping rod part (111) is provided with a tamping head cover (115) that matches the lower end opening of the tamping rod part (111), the tamping head cover (115) is set inside the tamping rod part (111) by a pull cover spring (117), and the tamping head cover (115) can be opened by the pressure slurry inside the tamping rod part (111); The maintenance device includes a maintenance box (7), a humidifier (8), a spray mechanism (72) located at the top of the maintenance box (7), several racks located inside the maintenance box (7), and a water receiving assembly (5) mounted under the racks. The top wall (71) of the maintenance box (7) is inclined, and the lowest point of the top wall (71) is located on the left and right sides of the maintenance box (7). The water receiving assembly (5) includes an inclined water receiving rack and several water receiving plates (51) arranged side by side on the water receiving rack. (51) Inclined setting, the lower side of the water receiving frame is provided with a drainage pipe leading to the outside of the maintenance box (7), the water receiving plate (51) is rotatably set in the water receiving frame and is connected to the drainage pipe through a hollow shaft (53); a power component (6) for driving the water receiving plate (51) to rotate and swing is provided on one side of the maintenance box (7), the water receiving plate (51) contacts the adjacent water receiving plate (51) when it rotates to the water receiving posture, and the water receiving plate (51) has the smallest projection on the horizontal plane when it rotates to the yielding posture.

2. The apparatus according to claim 1, wherein The combined tamping rod (1) includes an upper plate (101) and a lower plate (110) fixed relative to the lifting arm, an upper rotating plate (103) rotatably disposed on the lower surface of the upper plate (101), upper protrusions (104) spaced apart on the lower surface of the upper rotating plate (103), a lower support plate (106) fixedly disposed on the top of the tamping rod, lower protrusions (105) spaced apart on the upper surface of the lower support plate (106), and a tamping rod resetting assembly disposed around the periphery of the lower support plate (106). The tamping rod (111) is slidably connected to the lower plate (110); the upper plate (101) is provided with a tamping motor (118) that is pulverized and connected to the upper rotating plate (103). The tamping motor (118) drives the upper protrusion (104) to rotate. The surfaces of the upper protrusion (104) and the lower protrusion (105) are spherical or convex arc surfaces. The rotating upper protrusion (104) and the lower protrusion (105) slide in contact, causing the tamping rod (111) to move up and down reciprocally.

3. The apparatus according to claim 2, wherein The reset assembly includes a plurality of reset springs (108) and a reset plate (107) fixedly disposed on the outer periphery of the lower support plate (106). The reset springs (108) are sandwiched between the reset plate (107) and the lower plate (110), and at least one end of the reset springs (108) is fixed on the reset plate (107) or the lower plate (110).

4. The apparatus according to claim 1, wherein The tamping rod part (111) includes a detachable tamping head (114) disposed at the lowest end of the tamping rod part (111) and a tamping support (116) disposed on the upper part of the tamping head (114). The lower end of the tamping head (114) is provided with a groove that is smaller at the top and larger at the bottom. The tamping head cover (115) is accommodated in the groove. The upper end of the pull cover spring (117) is fixed on the tamping support (116), and the lower end of the pull cover spring (117) is fixed on the upper surface of the tamping head cover (115).

5. The apparatus according to claim 1, wherein The casting device also includes a fixed base plate (4), one end of which is provided with an alignment groove, the lower end of the lifting arm is fixedly disposed at the other end of the fixed base plate (4), and the mold box (74) is placed in the alignment groove.

6. The grout material concretion sample preparation apparatus of claim 1, wherein The water receiving frame includes a lower end shell (55) and a higher side plate (57). The two ends of the water receiving plate (51) are provided with guards (52). The guards (52) slide in contact with the end shell (55). The hollow shaft (53) is fixedly connected to the end shell (55). A side shaft is fixedly connected to the guard (52) near the side plate (57). The side shaft is rotatably mounted on the guard (52). A synchronous pulley (571) is coaxially provided on the side shaft. All the synchronous pulleys (571) are connected by the same synchronous belt (573). A connecting shaft (54) is coaxially fixed to one of the side shafts. The connecting shaft (54) is connected to the power component (6) for transmission.

7. The grout material concretion sample preparation apparatus according to claim 6, wherein The power assembly (6) includes a switching mechanism for switching the water receiving plate (51) between a water receiving posture and a yielding posture, and a swinging mechanism for driving the water receiving plate (51) to swing within a certain range. The end of the connecting shaft (54) extends out of the side wall (701) of the maintenance box (7); the switching mechanism includes a receiving protrusion (541) disposed at the end of the connecting shaft (54), a switching slide plate (601) disposed on one side of the receiving protrusion (541), and a switching motor for driving the switching slide plate (601) to reciprocate; the switching slide plate (601) is provided with a switching upper tooth that can mesh with the receiving protrusion (541) on the side facing the receiving protrusion (541). When the switching motor drives the switching slide plate (601) to move, the switching upper tooth drives the connecting shaft (54) to rotate 90 degrees by moving the receiving protrusion (541), thereby realizing the mutual change between the water receiving plate (51) from the water receiving posture to the yielding posture; The swing mechanism includes a swing assembly that provides reciprocating swing power and a transition shaft (67) that is drively connected to the power output end of the swing assembly. One end of the transition shaft (67) facing the connecting shaft (54) is provided with a second connecting protrusion (671) having the same structure as the first connecting protrusion (541). The first connecting protrusion (541) and the second connecting protrusion (671) are coaxial and spaced apart. A connecting sleeve (605) is fitted onto the second connecting protrusion (671). 5) The inner part is provided with several protrusions that guide and cooperate with the first part (541) and the second part (671) of the connecting protrusion. The outer periphery of the connecting sleeve (605) is provided with a toggle ring (606). A push-pull electromagnet (608) is fixed on the side wall (701) of the box. The push-pull electromagnet (608) is pushed and pulled in a direction parallel to the axis of the first part (541). The telescopic end of the push-pull electromagnet (608) is fixed with a toggle piece (607) that can move the toggle ring (606).

8. The grout material concretion sample preparation apparatus according to claim 7, wherein The swing assembly includes a frame plate (68) fixedly mounted on the side wall (701) of the box, a turntable (63) centrally rotatably mounted on the frame plate (68), a side post (64) fixed at the edge of the turntable (63), a toothed plate (62) rotatably connected to the side post (64) at one end, a toothed disc (61) coaxially fixed on the transition shaft (67), a locking claw (65) rotatably connected to the transition shaft (67), and a swing motor (66) for driving the turntable (63) to rotate. The transition shaft (67) is rotatably mounted on the frame plate (68). The toothed plate (62) has teeth on the side facing the toothed disc (61) that mesh with the toothed disc (61). The locking claw (65) slides in contact with the side of the toothed plate (62) facing away from the toothed disc (61).

9. The apparatus for preparing grouting material stone body samples according to claim 6, characterized in that, The water receiving plate (51) is V-shaped, and a water guide groove (511) is provided in the center of the water receiving plate (51) along the length direction of the water receiving plate (51). The hollow shaft (53) is sealed to the water guide groove (511).

10. The apparatus for preparing grouting material stone body samples according to claim 6, characterized in that, The end shell (55) is provided with a water guiding cavity, the hollow shaft (53) is connected to the water guiding cavity, the water guiding cavity is provided with an inclined water guiding slope (551), and a water outlet pipe (56) is provided at the lowest point of the water guiding slope (551). The water outlet pipe (56) is sealed and connected to the drainage pipe.

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