Preparation method of high-water-content Yangtze River floodplain super-long concrete and auxiliary device thereof

Abstract

The application relates to a preparation method of high-water-content Yangtze River floodplain super-long concrete and an auxiliary device thereof. The device comprises a plane moving mechanism, and a segregation-preventing mechanism detachably connected to the plane moving mechanism; the segregation-preventing mechanism comprises a plurality of telescopic string drums and a connecting mechanism, and the plurality of telescopic string drums are detachably connected through the connecting mechanism; the conventional string drum can be arranged into the telescopic string drum, and the connecting mechanism is arranged between the telescopic string drums; on one hand, a plurality of telescopic string drums can be conveniently spliced into a string drum with a required length; on the other hand, according to the steel bar design requirement, the length of each telescopic string drum can be adjusted to make the connecting mechanism at a proper height to cooperate with the steel bar, the steel bar can be penetrated under the premise of connecting the telescopic string drums, cooperation with the discharging opening of the moving concrete pump truck in the pouring process is facilitated, and the cost consumed in preparation of the super-long structure concrete is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of concrete pouring construction technology, specifically relating to a method for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain and its auxiliary device. Background Technology

[0002] my country's "Code for Construction of Mass Concrete" GB50496-2009 defines mass concrete as concrete with a minimum geometric dimension of not less than 1m, or concrete that is expected to develop harmful cracks due to temperature changes and shrinkage caused by the hydration of cementitious materials.

[0003] When preparing large-volume reinforced concrete, it is necessary to comprehensively compare the analysis results of different connection methods of steel-concrete structures under two conditions: bearing only vertical loads during construction and bearing both vertical and horizontal loads simultaneously. Through experimental analysis of the internal force transmission law of the components, the influence of deformation during construction on important components is studied. The reasonable connection method between steel reinforcement structural members before pouring, as well as the special materials and structural shapes of local steel reinforcement structural members, are determined to solve the problem of poor structural system stress caused by unreasonable design of steel-concrete connection methods. This can ensure that the stability of the steel reinforcement skeleton of large-volume concrete pouring is maintained above the construction requirements.

[0004] During the pouring process, especially when the pouring height exceeds two meters, auxiliary equipment such as chutes, pipes, and channels are usually used to assist in pouring in order to prevent the segregation of concrete materials. This can effectively prevent concrete segregation. However, due to the large volume and wide pouring area of ​​ultra-long structural concrete, setting up a large number of auxiliary equipment such as chutes, pipes, and channels will lead to a large consumption and high cost in the preparation of ultra-long structural concrete. On the other hand, using only one set of equipment such as chutes in conjunction with the concrete pouring pump truck has the problem of not being able to move conveniently between the reinforcing steel components. Summary of the Invention

[0005] The purpose of this invention is to provide a method for preparing ultra-long concrete with high water content in the Yangtze River floodplain and its auxiliary device in order to solve the above-mentioned problems.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A method for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain includes the following steps:

[0008] Step S1: Construct the formwork and reinforcing steel components according to the design requirements;

[0009] Step S2: Construct auxiliary equipment for pouring;

[0010] Step S3: Prepare the casting mixture. The mixture includes silicate cement, coarse aggregate, fine aggregate, polycarboxylate superplasticizer and inorganic nano crack-resistant and seepage-reducing agent. The coarse aggregate is river pebbles with a continuous gradation of 5-31.5mm. The fine aggregate is continuously graded medium-clear sand from the Yangtze River with a fineness modulus of 2.3-2.5 and a mud content of 1%.

[0011] Step S4: Concrete is poured into the formwork reinforced with steel bars using a concrete pump truck and auxiliary equipment.

[0012] Step S5: Use both an immersion vibrator and a plate vibrator to vibrate the concrete until a uniform slurry appears on the concrete surface.

[0013] An auxiliary device for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain, used to perform the above-mentioned method for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain, includes a planar moving mechanism and an anti-segregation mechanism detachably connected to the planar moving mechanism.

[0014] The anti-segregation mechanism includes several telescopic drums and a connecting mechanism, and the several telescopic drums are detachably connected to each other through the connecting mechanism.

[0015] The connecting mechanism includes a third flange, a fourth flange, an upper ring body connected to the lower end of the third flange, a lower ring body connected to the upper end of the fourth flange, several telescopic chambers located in the lower ring body, a first spring and a limiting wedge located in the telescopic chambers, a straight hook body connected to the limiting wedge, an annular air chamber located in the upper ring body, several limiting grooves and inclined grooves corresponding to the limiting wedges, a vertical connecting assembly connected to the inner wall of the limiting groove, a reset mechanism connected to the lower end of the vertical connecting assembly, and a fastening assembly connected to the reset mechanism. The straight hook body is inserted into the corresponding fastening assembly. The several limiting wedges are arranged in the same direction. When the connecting mechanism passes through the reinforcing bar, the reinforcing bar sequentially presses the limiting wedge at the corresponding position and causes the limiting wedge and the corresponding fastening assembly to move down simultaneously until the reinforcing bar contacts the corresponding fastening assembly, pushing the fastening assembly to rotate toward the corresponding inclined groove until it separates from the limiting wedge. After the reinforcing bar passes through the straight hook body, the limiting wedge and the fastening assembly are reset.

[0016] As a further optimization of the present invention, the vertical connecting assembly includes a first connecting member connected to the inner wall of the limiting groove, a corrugated pipe connected to the lower end of the first connecting member, a second connecting member connected to the lower end of the corrugated pipe, and a second spring connected between the first connecting member and the second connecting member. The first connecting member is provided with an air hole, and the internal space of the corrugated pipe is connected to the annular air cavity through the air hole. The reset mechanism is connected to the lower end of the second connecting member.

[0017] As a further optimization of the present invention, the reset mechanism includes a box body connected to the lower end of the second connector, a sliding chamber disposed in the box body, a sliding groove disposed on the lower end surface of the box body, a third spring connected to the inner wall of the sliding chamber, and a limiting slider connected to one end of the third spring. The cross-sectional area of ​​the limiting slider is larger than the area of ​​the sliding groove, and the fastening assembly passes through the sliding groove and is connected to the limiting slider.

[0018] As a further optimization of the present invention, the fastening assembly includes a fixed bracket connected to the lower end of the limiting slider, a locking pin fixedly connected to the fixed bracket, a rotating cylinder movably connected to the fixed bracket, a torsion spring connected between the locking pin and the rotating cylinder, a rotating bracket fixedly connected to the rotating cylinder, and a fixed buckle connected to the lower end of the rotating bracket. The straight hook body is inserted between the fixed buckle and the rotating cylinder and contacts the fixed buckle.

[0019] As a further optimization of the present invention, the telescopic spool includes a cylinder, a first flange and a second flange respectively connected to both ends of the cylinder, a plurality of screws fixedly connected to the lower end of the first flange, a plurality of fixed sleeves fixedly connected to the upper end of the second flange, and a rotating ring movably connected to the upper end of the fixed sleeves. The lower end of the screw passes through the rotating ring and the fixed sleeve in sequence, and the rotating ring is threadedly connected to the screw.

[0020] As a further optimization of the present invention, the fixed sleeve is provided with a screw hole, and a limit knob is connected to the screw hole by an internal thread. One end of the limit knob extends into the fixed sleeve and contacts the screw rod.

[0021] As a further optimization of the present invention, the planar moving mechanism includes a first transverse track and a second transverse track arranged symmetrically, a first moving platform slidably connected to the first transverse track and the second transverse track, a longitudinal track connected to the first moving platform, a rack connected to the first transverse track and the longitudinal track, a second moving platform slidably connected to the longitudinal track, and a first motor and a second motor respectively connected to the first moving platform and the second moving platform. The output shaft ends of the first motor and the second motor are each connected to a moving gear, and the moving gear meshes with the corresponding rack. The anti-segregation mechanism is detachably connected to the second moving platform, and the longitudinal track is provided with a moving groove for the anti-segregation mechanism to move.

[0022] As a further optimization of the present invention, a mating gear seat is detachably connected to the second mobile platform, and a third motor is connected to the second mobile platform. A directional gear is connected to the output shaft end of the third motor, and the directional gear meshes with the mating gear seat. The anti-segregation mechanism is detachably connected to the mating gear seat.

[0023] The beneficial effects of this invention are as follows: In this invention, the conventional tremie pipe is set as a telescopic tremie pipe, and a connecting mechanism is set between the telescopic tremie pipes. On the one hand, multiple telescopic tremie pipes can be easily spliced ​​into a tremie pipe of the required length. On the other hand, according to the design requirements of the reinforcing steel, the length of each telescopic tremie pipe can be adjusted to make the connecting mechanism at an appropriate height to cooperate with the reinforcing steel. The reinforcing steel can pass through the tremie pipes while connecting them, which facilitates cooperation with the discharge port of the moving concrete pump truck during the pouring process, greatly reducing the cost of preparing ultra-long structural concrete. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a view showing the cooperation between the telescopic string and the connecting mechanism of the present invention;

[0026] Figure 3 This is a schematic diagram of the telescopic stringer of the present invention;

[0027] Figure 4 This is a cross-sectional view of the telescopic stringer of the present invention;

[0028] Figure 5 This is a cross-sectional view of the connecting mechanism of the present invention;

[0029] Figure 6 This is the present invention. Figure 5 Enlarged view of point A in the middle;

[0030] Figure 7 This is a structural schematic diagram of the vertical connecting component of the present invention.

[0031] In the diagram: 101, First transverse track; 102, Second transverse track; 103, First moving platform; 104, First motor; 105, Longitudinal track; 1050, Moving groove; 106, Second moving platform; 107, Second motor; 108, Directional gear; 109, Gear seat; 2. Telescopic tremie cylinder; 201, Cylinder body; 202, First flange; 203, Second flange; 204, Fixed sleeve; 205, Rotating ring; 206, Screw; 3. Connecting mechanism; 301, Third flange; 302, Upper ring body; 3020, Annular air chamber; 3021, Limiting groove; 3022, Inclined groove; 30 3. Fourth flange; 304. Lower ring body; 3040. Telescopic chamber; 305. Limiting wedge; 3050. Straight hook body; 306. First spring; 307. Vertical connecting assembly; 3070. First connector; 3071. Bellows; 3072. Second spring; 3073. Second connector; 3074. Air hole; 308. Reset mechanism; 3080. Box body; 3081. Sliding chamber; 3082. Slide groove; 3083. Third spring; 3084. Limiting slider; 309. Fastening assembly; 3090. Fixed bracket; 3091. Rotating bracket; 3092. Rotating cylinder; 3093. Fixed buckle. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] Example 1

[0034] A method for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain includes the following steps:

[0035] Step S1: Construct the formwork and reinforcing steel components according to the design requirements;

[0036] Step S2: Construct auxiliary equipment for pouring;

[0037] Step S3: Prepare the casting mixture. The mixture includes silicate cement, coarse aggregate, fine aggregate, polycarboxylate superplasticizer and inorganic nano crack-resistant and seepage-reducing agent. The coarse aggregate is river pebbles with a continuous gradation of 5-31.5mm. The fine aggregate is continuously graded medium-clear sand from the Yangtze River with a fineness modulus of 2.3-2.5 and a mud content of 1%.

[0038] Step S4: Concrete is poured into the formwork reinforced with steel bars using a concrete pump truck and auxiliary equipment.

[0039] Step S5: Use both an immersion vibrator and a plate vibrator to vibrate the concrete until a uniform slurry appears on the concrete surface.

[0040] It should be noted that before pouring, the installation of concrete raw materials, mix proportions, and expansion reinforcement strips should be checked to ensure they meet design requirements. The concrete temperature upon placement should not exceed 30℃. Vibration should be thorough, avoiding under-vibration, excessive vibration, or missed vibration. Vibration time should be between 10 and 30 seconds. For ultra-long structures, concrete should be protected from low temperatures, dryness, and rapid temperature changes during the initial hardening stage. Newly poured concrete lacks sufficient strength and has not established effective expansion stress, making it unable to withstand destructive stresses caused by sudden temperature drops, vibration, or impact. To prevent cracking, protective measures should be taken. After removing the formwork, it should be washed, then wrapped tightly with plastic film and watered daily. The surface must be kept continuously moist for at least 14 days, with the concrete curing time for impermeable structural parts being at least 28 days. For horizontal beam and slab components, watering should begin within 8-12 hours after concrete pouring, using methods such as spooning or spraying. The frequency of watering depends on maintaining the surface moisture. The curing time should be controlled to be 14 days or more without interruption. The curing time for impermeable structural concrete should be 28 days or more, and the curing time for concrete in expansion reinforcement zones should be 40 days or more. During winter construction, the dismantling time of components should be extended to more than 7 days. The surface should not be sprayed directly; instead, plastic sheeting should be used to retain moisture, and then rock wool blankets or other heat insulation materials should be laid on top of the film. 。

[0041] like Figure 1 and Figure 2 As shown, an auxiliary device for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain is used to perform the above-mentioned method for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain. The device includes a planar moving mechanism and an anti-segregation mechanism detachably connected to the planar moving mechanism.

[0042] The anti-segregation mechanism includes several telescopic drums 2 and a connecting mechanism 3. The several telescopic drums 2 are detachably connected to each other through the connecting mechanism 3.

[0043] The connecting mechanism 3 includes a third flange 301, a fourth flange 303, an upper ring body 302 connected to the lower end of the third flange 301, a lower ring body 304 connected to the upper end of the fourth flange 303, several telescopic chambers 3040 disposed in the lower ring body 304, a first spring 306 and a limiting wedge 305 disposed in the telescopic chambers 3040, a straight hook body 3050 connected to the limiting wedge 305, an annular air chamber 3020 disposed in the upper ring body 302, several limiting grooves 3021 and inclined grooves 3022 corresponding to the limiting wedges 305, a vertical connecting assembly 307 connected to the inner wall of the limiting grooves 3021, and a vertical connecting assembly 307 connected to the vertical connecting assembly. The lower end of 307 has a reset mechanism 308 and a fastening assembly 309 connected to the reset mechanism 308. The straight hook body 3050 is inserted into the corresponding fastening assembly 309. Several limiting wedges 305 are arranged in the same direction. When the connecting mechanism 3 passes the steel bar, the steel bar sequentially presses the limiting wedges 305 at the corresponding positions and causes the limiting wedges 305 and the corresponding fastening assemblies 309 to move down at the same time until the steel bar contacts the corresponding fastening assembly 309, pushing the fastening assembly 309 to rotate toward the corresponding inclined groove 3022 until it separates from the limiting wedges 305. After the steel bar passes the straight hook body 3050, the limiting wedges 305 and the fastening assembly 309 are reset.

[0044] It should be noted that before pouring, the planar moving mechanism and the anti-segregation mechanism are constructed according to the pouring design. During the construction of the anti-segregation mechanism, the length of the telescopic tremie pipe 2 is adjusted by the spacing between the reinforcing bars of each layer to ensure that the connecting mechanism 3 between the telescopic tremie pipes 2 can be adapted to the position of the reinforcing bars of each layer. Then, the anti-segregation mechanism is inserted into the gap between the reinforcing bars. When the anti-segregation mechanism moves and pours with the concrete pump truck, after contacting the reinforcing bars, the reinforcing bars will first contact the wedge surface of one of the limiting wedges 305, which is an inclined surface. At this time, the limiting wedge 305 gradually moves down under the force and squeezes the first spring 306 in the limiting groove 3021, and drives the straight hook body 3050 and the fastening assembly 309 to move down together. At this time, the vertical connecting assembly 307 is stretched until the gap between the upper end face of the straight hook body 3050 and the lower end face of the upper ring body 302 is sufficient for the steel. When the reinforcing bar passes through, it stops moving. At this time, the reinforcing bar moves along the upper surface of the straight hook body 3050 and contacts the fastening assembly 309. When the reinforcing bar contacts the fastening assembly 309, it will push the fastening assembly 309 to move in the same direction until the fastening assembly 309 is no longer limited by the straight hook body 3050. Then the fastening assembly 309 disengages from the straight hook body 3050. The entire limiting wedge block 305 and the straight hook body 3050 pass through the reinforcing bar and move upward again under the action of the first spring 306, and re-engage with the fastening assembly 309. The fastening assembly 309 returns to its initial position under the reset action of the reset mechanism 308 and the vertical connecting mechanism 3, and limits the straight hook body 3050 and the limiting wedge block 305. It should be noted that the several limiting wedge blocks 305 in the connecting mechanism 3 contact the reinforcing bar in sequence, which can ensure the connection stability between the telescopic cisterns 2 while the reinforcing bar passes through.

[0045] Among them, such as Figure 5 , Figure 6 and Figure 7 As shown, the vertical connecting assembly 307 includes a first connecting member 3070 connected to the inner wall of the limiting groove 3021, a bellows 3071 connected to the lower end of the first connecting member 3070, a second connecting member 3073 connected to the lower end of the bellows 3071, and a second spring 3072 connected between the first connecting member 3070 and the second connecting member 3073. The first connecting member 3070 is provided with an air hole 3074. The internal space of the bellows 3071 is connected to the annular air cavity 3020 through the air hole 3074. The reset mechanism 308 is connected to the lower end of the second connecting member 3073.

[0046] It should be noted that, as mentioned above, when the fastening assembly 309 moves downward under the drive of the straight hook body 3050, the bellows 3071 in the vertical connecting mechanism 3 is gradually stretched, its internal sealing space increases, generating negative pressure and drawing in the annular air chamber 3020 in the upper ring body 302 and the gas in other vertical connecting mechanisms 3. At this time, pressure can be generated in the other vertical connecting mechanisms 3, and a certain pulling force can be provided to the corresponding reset mechanism 308. This can ensure that the limiting wedge block 305 and the straight hook body 3050 that have not yet contacted or have already passed the steel bar are subjected to a stable limiting force, preventing the connecting mechanism 3 from being affected when passing through the steel bar, thus making it more stable.

[0047] After the limiting wedge 305 passes the steel bar, its internal second spring 3072 can rebound and cooperate with the reset mechanism 308 to reset the fastening assembly 309, providing stability for the connection of the telescopic cistern 2 until it contacts the next steel bar.

[0048] Among them, such as Figure 5 and Figure 6 As shown, the reset mechanism 308 includes a housing 3080 connected to the lower end of the second connector 3073, a sliding chamber 3081 disposed in the housing 3080, a groove 3082 disposed on the lower end surface of the housing 3080, a third spring 3083 connected to the inner wall of the sliding chamber 3081, and a limiting slider 3084 connected to one end of the third spring 3083. The cross-sectional area of ​​the limiting slider 3084 is larger than the area of ​​the groove 3082. The fastening assembly 309 passes through the groove 3082 and is connected to the limiting slider 3084.

[0049] It should be noted that, as mentioned above, when the reinforcing bar contacts the fastening assembly 309 along the straight hook body 3050, the fastening assembly 309 is pushed by the reinforcing bar while being limited. When the fastening assembly 309 moves along the straight hook body 3050, it drives the limiting slider 3084 to move in the same direction. At this time, the third spring 3083 is in a stretched state until the fastening assembly 309 contacts the inner wall of the limiting groove 3021. At this time, the fastening assembly 309 reaches the critical position of disengaging from the straight hook body 3050.

[0050] Among them, such as Figure 5 and Figure 6 As shown, the fastening assembly 309 includes a fixed bracket 3090 connected to the lower end of the limiting slider 3084, a locking pin fixedly connected to the fixed bracket 3090, a rotating cylinder 3092 movably connected to the fixed bracket 3090, a torsion spring connected between the locking pin and the rotating cylinder 3092, a rotating bracket 3091 fixedly connected to the rotating cylinder 3092, and a fixed buckle 3093 connected to the lower end of the rotating bracket 3091. The straight hook body 3050 is inserted between the fixed buckle 3093 and the rotating cylinder 3092 and contacts the fixed buckle 3093.

[0051] It should be noted that, as mentioned above, when the fastening assembly 309 reaches the critical position of disengaging from the straight hook body 3050, that is, when the fixing rod 3093 moves to one end of the straight hook body 3050, the fixing rod 3093 is no longer limited by the straight hook body 3050. Under the force of the reinforcing steel, the rotating bracket 3091 begins to rotate along the rotating cylinder 3092 toward the inclined groove 3022. At this time, the fixing rod 3093 and the straight hook body 3050 disengage, and the reinforcing steel is no longer in contact with the straight hook body 3050. At this time, the torsion spring in the rotating cylinder 3092 is under stress. Since the fixing bracket 3090 cannot rotate, it is still directly above the straight hook body 3050. After the straight hook body 3050 is disengaged from the reinforcing steel, the straight hook body 3050 and the limiting wedge block 305 are no longer restricted. Under the action of the first spring 306, the rotating bracket 3091 moves upward again and first contacts the rotating drum 3092. At this time, the rotating bracket 3091 is still in contact with the steel bar, but it can move along the tangent of the contact with the steel bar. Under the force applied by the straight hook 3050, the reset mechanism 308 and the vertical connecting mechanism 3, the rotating bracket 3091 gradually moves back along the tangent of the contact with the steel bar. This route is constantly changing, but it does not affect the return of the rotating bracket 3091 until the limiting bracket is no longer in contact with the steel bar. Then, the torsion spring is no longer restricted and the rotating bracket 3091 is rotated back to the initial position until the limiting wedge 305 no longer moves. At this time, under the synergistic action of the vertical connecting mechanism 3 and the reset mechanism 308, the rotating bracket 3091 returns to the initial state of contact with the straight hook 3050.

[0052] It should be noted that the arrangement direction of each limiting wedge 305 is the same. When moving along the same direction, the wedge surface of each limiting wedge 305 will contact the reinforcing steel member, such as... Figure 5 As shown, only four limiting wedges 305 are set, distributed in a diamond shape, but not limited to this design and number. When the steel bar is in contact with the first limiting wedge 305, the other three can play a stable connection role. When the two limiting wedges 305 in the middle position are moved, the initial limiting wedge 305 and the last limiting wedge 305 that has not yet contacted the steel bar can provide a stable and symmetrical connection effect. Similarly, when the last one is in contact, the connecting mechanism 3 can also maintain a stable connection state, so that the connecting mechanism 3 can stably connect the telescopic tremie cylinder 2 when passing the steel bar.

[0053] Among them, such as Figure 2 , Figure 3 and Figure 4As shown, the telescopic spool 2 includes a cylinder 201, a first flange 202 and a second flange 203 respectively connected to both ends of the cylinder 201, a plurality of screws 206 fixedly connected to the lower end of the first flange 202, a plurality of fixed sleeves 204 fixedly connected to the upper end of the second flange 203, and a rotating ring 205 movably connected to the upper end of the fixed sleeves 204. The lower ends of the screws 206 pass through the rotating rings 205 and the fixed sleeves 204 in sequence, and the rotating rings 205 are threadedly connected to the screws 206.

[0054] The fixed sleeve 204 is provided with a screw hole, and a limit knob is connected to the screw hole by an internal thread. One end of the limit knob extends into the fixed sleeve 204 and contacts the screw rod 206.

[0055] It should be noted that, as mentioned above, when adjusting the length of the telescopic spool 2, first unscrew the limiting knob of the fixed sleeve 204 so that the movement of the screw 206 is no longer restricted. Then, by rotating the rotating ring 205, the screw 206 is driven to insert into the fixed sleeve 204 to a certain length. When the screw 206 moves, it drives the first flange 202 to move in the same direction. The distance between the first flange 202 and the second flange 203 can be adjusted, which is the amount of telescopic change and the final length of the spool 201. When adjusted to the set position, tighten the limiting knob again so that the screw 206 is limited again. It should be noted that the limiting knob is set near the rotating ring 205. Because the maximum length of the spool 201 is less than the sum of the lengths of the screw 206 and the fixed sleeve 204, the screw 206 cannot be directly disengaged from the fixed sleeve 204. Within the adjustment range, the limiting knob can contact the screw 206 to apply a limiting effect, so that the entire telescopic spool 2 remains stable during use.

[0056] Among them, such as Figure 1 As shown, the planar moving mechanism includes a first transverse track 101 and a second transverse track 102 symmetrically arranged, a first moving platform 103 slidably connected to the first transverse track 101 and the second transverse track 102, a longitudinal track 105 connected to the first moving platform 103, a rack connected to the first transverse track 101 and the longitudinal track 105, a second moving platform 106 slidably connected to the longitudinal track 105, and a first motor 104 and a second motor 107 respectively connected to the first moving platform 103 and the second moving platform 106. The output shaft ends of the first motor 104 and the second motor 107 are each connected to a moving gear, which meshes with the corresponding rack. The anti-segregation mechanism is detachably connected to the second moving platform 106, and the longitudinal track 105 is provided with a moving groove 1050 for the anti-segregation mechanism to move.

[0057] The second mobile platform 106 is detachably connected to a mating gear seat 109, and a third motor is connected to the second mobile platform 106. The output shaft end of the third motor is connected to a directional gear 108, which meshes with the mating gear seat 109. The anti-segregation mechanism is detachably connected to the mating gear seat 109.

[0058] It should be noted that, as mentioned above, when controlling the movement of the entire anti-segregation mechanism, such as Figure 1 As shown, if it is necessary to control the anti-segregation mechanism to move along the length direction of the first transverse track 101, the first motor 104 can drive the corresponding moving gear to rotate. After the moving gear rotates, it can move along the rack on the first transverse track 101, and drive the first moving platform 103 and the longitudinal track 105 to move. The second moving platform 106 connected to the longitudinal track 105 and the anti-segregation mechanism connected to the second moving platform 106 both move along the length direction of the first transverse track 101 following the movement of the first moving platform 103. Similarly, when it is necessary to control the anti-segregation mechanism to move along the length direction of the longitudinal track 105, the second motor 107 can drive the corresponding moving gear to rotate, driving the second moving platform 106 and the anti-segregation mechanism to move along the longitudinal track 105. The first moving platform 103 and the second moving platform 106 can also be controlled to move simultaneously.

[0059] It should be noted that during the movement, the wedge surface of each limit wedge 305 must always face the movement trajectory to ensure that the wedge surface of the limit wedge 305 can contact the steel bar that is about to be contacted. The adjustment process can be adjusted according to the movement trajectory. Specifically, the third motor drives the directional gear 108 to rotate. After the directional gear 108 rotates, the mating gear seat 109 can be adjusted to rotate at a specified angle. The anti-segregation mechanism is connected to the mating gear seat 109 and will rotate in the same direction as the mating gear seat 109.

[0060] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0064] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An auxiliary device for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain, characterized in that, Includes a planar moving mechanism and a detachable anti-segregation mechanism connected to the planar moving mechanism; The anti-segregation mechanism includes several telescopic drums (2) and a connecting mechanism (3), and the several telescopic drums (2) are detachably connected to each other through the connecting mechanism (3); The connecting mechanism (3) includes a third flange (301), a fourth flange (303), an upper ring body (302) connected to the lower end of the third flange (301), a lower ring body (304) connected to the upper end of the fourth flange (303), several telescopic chambers (3040) disposed in the lower ring body (304), a first spring (306) and a limiting wedge (305) disposed in the telescopic chambers (3040), a straight hook body (3050) connected to the limiting wedge (305), an annular air chamber (3020) disposed in the upper ring body (302), several limiting grooves (3021) and inclined grooves (3022) corresponding to the limiting wedges (305), a vertical connecting assembly (307) connected to the inner wall of the limiting groove (3021), and a vertical connecting assembly (307) connected to the vertical connecting assembly. The component (307) has a reset mechanism (308) at the lower end and a fastening component (309) connected to the reset mechanism (308). The straight hook body (3050) is inserted into the corresponding fastening component (309). The arrangement direction of several limiting wedges (305) is consistent. When the connecting mechanism (3) passes through the steel bar, the steel bar sequentially presses the limiting wedge (305) at the corresponding position and causes the limiting wedge (305) and the corresponding fastening component (309) to move down at the same time until the steel bar contacts the corresponding fastening component (309), pushing the fastening component (309) to rotate toward the corresponding inclined groove (3022) until it separates from the limiting wedge (305). After the steel bar passes through the straight hook body (3050), the limiting wedge (305) and the fastening component (309) are reset. The vertical connecting assembly (307) includes a first connector (3070) connected to the inner wall of the limiting groove (3021), a bellows (3071) connected to the lower end of the first connector (3070), a second connector (3073) connected to the lower end of the bellows (3071), and a second spring (3072) connected between the first connector (3070) and the second connector (3073). The first connector (3070) is provided with an air hole (3074). The internal space of the bellows (3071) is connected to the annular air chamber (3020) through the air hole (3074). The reset mechanism (308) is connected to the lower end of the second connector (3073). The reset mechanism (308) includes a box (3080) connected to the lower end of the second connector (3073), a sliding chamber (3081) disposed in the box (3080), a slide groove (3082) disposed on the lower end surface of the box (3080), a third spring (3083) connected to the inner wall of the sliding chamber (3081), and a limiting slider (3084) connected to one end of the third spring (3083). The cross-sectional area of ​​the limiting slider (3084) is larger than the area of ​​the slide groove (3082). The fastening assembly (309) passes through the slide groove (3082) and is connected to the limiting slider (3084). The fastening assembly (309) includes a fixed bracket (3090) connected to the lower end of the limiting slider (3084), a locking pin fixedly connected to the fixed bracket (3090), a rotating cylinder (3092) movably connected to the fixed bracket (3090), a torsion spring connected between the locking pin and the rotating cylinder (3092), a rotating bracket (3091) fixedly connected to the rotating cylinder (3092), and a fixed buckle (3093) connected to the lower end of the rotating bracket (3091). The straight hook body (3050) is inserted between the fixed buckle (3093) and the rotating cylinder (3092) and contacts the fixed buckle (3093).

2. The auxiliary device for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain according to claim 1, characterized in that: The telescopic spool (2) includes a cylinder (201), a first flange (202) and a second flange (203) respectively connected to both ends of the cylinder (201), a plurality of screws (206) fixedly connected to the lower end of the first flange (202), a plurality of fixed sleeves (204) fixedly connected to the upper end of the second flange (203), and a rotating ring (205) movably connected to the upper end of the fixed sleeves (204). The lower end of the screw (206) passes through the rotating ring (205) and the fixed sleeve (204) in sequence, and the rotating ring (205) is threadedly connected to the screw (206).

3. The auxiliary device for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain according to claim 2, characterized in that: The fixed sleeve (204) is provided with a screw hole, and a limit knob is connected to the screw hole by a thread. One end of the limit knob extends into the fixed sleeve (204) and contacts the screw (206).

4. The auxiliary device for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain according to claim 1, characterized in that: The planar moving mechanism includes a first transverse track (101) and a second transverse track (102) symmetrically arranged, a first moving platform (103) slidably connected to the first transverse track (101) and the second transverse track (102), a longitudinal track (105) connected to the first moving platform (103), a rack connected to the first transverse track (101) and the longitudinal track (105), a second moving platform (106) slidably connected to the longitudinal track (105), and a first motor (104) and a second motor (107) respectively connected to the first moving platform (103) and the second moving platform (106). The output shaft ends of the first motor (104) and the second motor (107) are all connected to moving gears, and the moving gears mesh with the corresponding racks respectively. The anti-segregation mechanism is detachably connected to the second moving platform (106), and the longitudinal track (105) is provided with a moving groove (1050) for the anti-segregation mechanism to move.

5. The auxiliary device for preparing ultra-long concrete with high moisture content in the Yangtze River floodplain according to claim 4, characterized in that: The second mobile platform (106) is detachably connected to a gear seat (109), and a third motor is connected to the second mobile platform (106). The output shaft of the third motor is connected to a directional gear (108), which meshes with the gear seat (109). The anti-segregation mechanism is detachably connected to the gear seat (109).

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