Cast-in-place gravity type concrete retaining wall block overlapping construction device and process

Abstract

The invention discloses a cast-in-place gravity type concrete retaining wall block overlapping construction device and technology, and relates to the technical field of concrete retaining wall construction.The cast-in-place gravity type concrete retaining wall block overlapping construction device comprises a guide rail, and the guide rail is slidably connected with a shaping box used for pouring concrete and a mold closing box used for shaping retaining wall blocks; a material pressing mechanism and a material guiding mechanism which are driven by a servo motor are arranged in the molding box and the mold closing box correspondingly, the mold closing box is detachably installed on the molding box through a lock rod, butt joint side lugs corresponding to the lock rod are arranged on the molding box, and a control module connected with the servo motor through electric signals is further arranged on the molding box. The material pressing mechanism comprises a material pressing plate slidably connected into the mold closing box, the material pressing plate is connected with the end, extending into the molding box, of the material separating insertion plate in an abutting mode, and during use, the material pressing mechanism is driven by a servo motor to achieve high-frequency reciprocating vibration of the material pressing plate, and pressure is continuously applied to the side faces of concrete blocks in cooperation with the synergistic effect of a material pressing spring and a reset spring; and voids and pitted surfaces on the side surfaces are avoided.

Description

Technical Field

[0001] This invention relates to the field of concrete retaining wall construction technology, specifically to a construction device and process for segmented and stacked construction of cast-in-place gravity concrete retaining walls. Background Technology

[0002] Cast-in-place gravity concrete retaining walls are a type of retaining structure that relies on its own weight to maintain structural stability. They are widely used in road engineering, water conservancy engineering, slope protection engineering, and other fields. They are mainly used to resist lateral earth pressure, prevent slope collapse, and protect the surrounding environment of roadbeds or foundation pits.

[0003] In actual engineering construction, for retaining wall construction scenarios involving significant height, complex terrain, or limited construction space, modular stacking construction has become the mainstream method. This method involves dividing the retaining wall into multiple independent blocks along its height or length, fabricating each block in-situ, and then stacking them sequentially to form a complete retaining wall structure. Concrete is the core material of the cast-in-situ retaining blocks, and its quality directly determines the mechanical properties and durability of the blocks. In the existing construction process, the concrete needs to be thoroughly mixed using mixing equipment before being poured into the retaining block molds.

[0004] Furthermore, to prevent excessive air bubbles in the concrete, manual handheld concrete vibrators are commonly used during construction for air removal and compaction. This involves the operator holding the vibrator and inserting the vibrating part into the poured concrete. High-frequency vibration causes the concrete to liquefy, prompting the internal air to rise and be expelled. However, the top vibration does not apply sufficient pressure to the sides of the blocks, which can easily lead to honeycomb and pitted surfaces on the sides of the blocks, affecting the overall aesthetics of the retaining wall. Moreover, when the upper blocks are stacked and assembled after the lower blocks have been poured and cured, there is a lack of effective guidance for their descent, resulting in a large impact that can easily cause the solidified blocks to disperse again. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a construction device and process for the segmented stacking of cast-in-place gravity concrete retaining walls. The problem to be solved is that when constructing segmented stacking of cast-in-place gravity concrete retaining walls, the pressure of manual hand-held vibrators on the sides of the segments is insufficient, which can easily cause honeycomb and pitted surfaces, affecting the aesthetics. Furthermore, when the upper blocks are stacked and assembled after the lower blocks have been poured and cured, there is a lack of effective guidance for the falling blocks, resulting in a large impact during the descent, which can easily cause the solidified blocks to disperse again.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a construction device for segmented and stacked construction of cast-in-place gravity concrete retaining walls, comprising a guide rail, on which a molding box for pouring concrete and a mold box for segmenting the molded retaining wall are slidably connected respectively. The molding box and the mold box are respectively provided with a pressing mechanism and a guiding mechanism driven by a servo motor. The mold box is detachably installed on the molding box via a locking rod. The molding box is provided with a docking lug corresponding to the locking rod. The molding box is also provided with a control module connected to the servo motor electrical signal.

[0008] The top of the molding box is provided with a feeding hopper for adding concrete. A material separating plate driven by a push rod is slidably connected in the molding box below the feeding hopper. A discharge chamber is provided in the molding box below the material separating plate, and the discharge chamber is provided with inclined discharge chutes.

[0009] The pressing mechanism includes a pressing plate slidably connected in the mold box, and the pressing plate and the end of the partition plate extending into the molding box are abutted and connected. The mold box is also slidably connected with guide seats distributed parallel to the pressing plate. The side of the pressing plate away from the partition plate is also provided with symmetrically distributed guide slide rods, and each guide slide rod is fitted with a pressing spring. The pressing spring is located between the pressing plate and the guide seat.

[0010] The servo motor is fixedly installed in the mold box, and the output shaft of the servo motor is connected to a transmission shaft, on which a pressure cam for driving the guide seat is provided.

[0011] As a preferred embodiment of the cast-in-place gravity concrete retaining wall segmented and stacked construction device of the present invention, wherein: the guide seat is also rotatably connected to a roller corresponding to the pressure cam via a bearing, the roller and the guide slide rod are arranged to avoid each other, a retaining ring is fixedly installed at one end of the guide slide rod near the pressure plate, and the two ends of the pressure spring are respectively abutted and connected to the corresponding retaining ring and the guide seat.

[0012] As a preferred embodiment of the cast-in-place gravity concrete retaining wall segmented and stacked construction device of the present invention, wherein: the guide slide rod has a threaded end at one end passing through the guide seat, and the threaded end extends to the outside of the formwork box and is provided with an adjusting nut that is threadedly connected; a return spring is also sleeved on the outside of the threaded end, and the two ends of the return spring are respectively abutted and connected to the corresponding adjusting nut and the guide seat.

[0013] As a preferred embodiment of the cast-in-place gravity concrete retaining wall segmented and stacked construction device of the present invention, the material guiding mechanism includes a lifting slide that is slidably connected in the material discharge chute, a receiving seat is provided at one end of the lifting slide that extends into the shaping box, a buffer spring is provided between the receiving seat and the lifting slide, and the receiving seat and the material discharge chute are arranged to avoid each other.

[0014] As a preferred embodiment of the cast-in-place gravity concrete retaining wall segmented and stacked construction device of the present invention, wherein: the receiving seat has a guide slope with the same inclination direction as the material discharge chute on the side away from the lifting slide, and vertically distributed guide rods are fixedly installed on the receiving seat, the end of the guide rod away from the receiving seat extends to the outside of the lifting slide, and the buffer spring is sleeved on the outside of the guide rod and its two ends are respectively connected to the receiving seat and the lifting slide.

[0015] As a preferred embodiment of the cast-in-place gravity concrete retaining wall block stacking construction device of the present invention, wherein: the lifting slide extends to one end of the plastic box and is hinged to a first connecting rod, the first connecting rod is provided with a pin, and the end of the pin away from the first connecting rod is hinged to a second connecting rod.

[0016] The transmission shaft passes through one end of the pressure cam and is also fixedly mounted with a swing arm for driving the second link, and the swing arm is hinged to the end of the second link away from the pin.

[0017] As a preferred embodiment of the cast-in-place gravity concrete retaining wall segmented and stacked construction device of the present invention, wherein: an adjusting handle is rotatably connected to the pin shaft and located between the first connecting rod and the second connecting rod, and one end of the adjusting handle passing through the pin shaft is threadedly connected to one end of the transmission shaft passing through the swing arm.

[0018] As a preferred embodiment of the cast-in-place gravity concrete retaining wall segmented and stacked construction device of the present invention, wherein: the guide rail is provided with linearly arranged scales along its length direction, and the outer side of the molding box is fixedly installed with a pointer for indicating the scales.

[0019] A process for constructing a segmented, overlapping device for cast-in-place gravity concrete retaining walls, characterized by the following steps:

[0020] Step 1: When the device is needed, first fix the mold box and the molding box by using the bolts on the locking rod and the mating ears on the molding box. Push the two to slide along the guide rail, adjust to the preset construction position with the help of the ruler and pointer, and preset the servo motor parameters through the control module.

[0021] Step two: Then, the concrete raw material is injected into the feeding hopper at the top of the plastic box. At this time, the material isolation plate is kept closed under the drive of the plate push rod, and the concrete is manually vented and compacted.

[0022] Step 3: The servo motor will be started through the control module, which will drive the pressing cam to rotate and make the pressing plate vibrate back and forth to compact the sides of the concrete blocks. The preload of the reset spring will be adjusted by rotating the adjusting nut as needed to adapt to different grades of concrete.

[0023] Step 4: Drive the insert plate push rod through the control module to open the material-separating insert plate, so that the shaped concrete blocks slide down the material feeding chute and are supported and guided by the material receiving seat to fall smoothly.

[0024] Step 5: Rotate the lever as needed to adjust the travel of the lifting slide to adapt to different height sections, and push the device along the guide rail to adjust to the position of the next section, assisting in completing the overlapping construction.

[0025] In summary, the present invention has at least one of the following beneficial effects:

[0026] 1. This invention uses a servo motor to drive a pressing mechanism to achieve high-frequency reciprocating vibration of the pressing plate. Combined with the synergistic effect of the pressing spring and the return spring, it continuously applies pressure to the side of the concrete block, thus preventing honeycomb pitting from appearing on the side.

[0027] 2. In this invention, the material receiving seat of the material guiding mechanism is driven by a linkage transmission mechanism to realize the segmented lifting and guiding of the concrete blocks. The impact energy is absorbed by the buffer spring, which effectively avoids damage to the concrete blocks due to impact when they fall after shaping.

[0028] 3. This invention allows for the adjustment of the lifting slide travel by adjusting the lever to adapt to different height blocks without the need for additional lifting equipment. Combined with the positioning structure consisting of guide rails, rulers, and pointers, the construction position can be quickly and accurately adjusted, effectively preventing concrete leakage and offset of retaining wall blocks during pouring. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0030] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a side-view perspective structural diagram of the present invention;

[0032] Figure 3 This is a cross-sectional view of the present invention;

[0033] Figure 4 This is a structural diagram showing the assembly of the molding box and the mold clamping box according to the present invention.

[0034] Figure 5 This is a structural diagram showing the assembly of the pressing mechanism and the guiding mechanism of the present invention.

[0035] Figure 6 This is a structural diagram of the pressing mechanism of the present invention;

[0036] Figure 7 This is a structural diagram of the servo motor and material guiding mechanism of the present invention;

[0037] Figure 8 This is a diagram showing the installation of the lifting slide and the receiving seat according to the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Guide rail; 11. Scale; 2. Molding box; 21. Feeding hopper; 22. Material separator plate; 221. Plate push rod; 23. Discharge chamber; 231. Discharge chute; 24. Pointer; 25. Docking side lug; 3. Mold closing box; 4. Servo motor; 41. Transmission shaft; 411. Pressure cam; 412. Swing arm; 5. Pressure mechanism; 51. Pressure plate; 52. Guide seat; 521. Roller; 53. 531. Guide slide rod; 532. Retaining ring; 533. Threaded end; 5321. Adjusting nut; 54. Material pressure spring; 55. Return spring; 6. Material guiding mechanism; 61. Lifting slide; 62. Material receiving seat; 621. Material guiding inclined surface; 622. Guide rod; 63. First connecting rod; 64. Pin; 641. Second connecting rod; 642. Adjusting lever; 65. Buffer spring; 7. Locking rod; 8. Control module. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] This invention discloses a construction device and process for the segmented overlapping of cast-in-place gravity concrete retaining walls.

[0042] Example 1

[0043] Reference Figure 1-8This invention provides a first embodiment of a cast-in-place gravity concrete retaining wall segmented and stacked construction device and process. The device includes a guide rail 1, on which a molding box 2 for pouring concrete and a mold-closing box 3 for segmenting the retaining wall are slidably connected. The molding box 2 and mold-closing box 3 are respectively equipped with a pressing mechanism 5 and a guiding mechanism 6 driven by a servo motor 4. The mold-closing box 3 is detachably mounted on the molding box 2 via a locking rod 7. The molding box 2 has a docking lug 25 corresponding to the locking rod 7, and a control module 8 electrically connected to the servo motor 4 is also provided on the molding box 2. A feeding hopper 21 for adding concrete is located at the top of the molding box 2, and the molding box 2 slides below the feeding hopper 21. A material-separating insert plate 22, driven by a push rod 221, is connected to the molding box 2. A discharge cavity 23 is located below the material-separating insert plate 22, and the discharge cavity 23 has inclined discharge chute 231. The pressing mechanism 5 includes a pressing plate 51 slidably connected to the mold box 3, and the pressing plate 51 abuts against one end of the material-separating insert plate 22 extending into the molding box 2. A guide seat 52, parallel to the pressing plate 51, is also slidably connected to the mold box 3. A symmetrically distributed guide slide rod 53 is provided on the side of the pressing plate 51 away from the material-separating insert plate 22, and a pressing spring 54 is sleeved on each of the guide slide rods 53. The pressing spring 54 is located between the pressing plate 51 and the guide seat 52. A servo motor 4 is fixedly installed in the mold box 3, and the output shaft of the servo motor 4 drives... A drive shaft 41 is connected, and a pressure cam 411 for driving the guide seat 52 is provided on the drive shaft 41. The guide rail 1 is the moving reference component of the device, and its purpose is to provide stable sliding guidance for the molding box 2 and the mold box 3, ensuring that both can move along a preset trajectory during construction through the bottom moving wheel structure. The molding box 2 serves as a temporary storage and pretreatment cavity for concrete, and the mold box 3 is the forming mold for the retaining wall blocks. The two are detachably fixed by the cooperation of the bolt on the locking rod 7 and the mating lug 25, which facilitates demolding after the mold is poured, while ensuring a tight seal between the two during the pouring of the concrete retaining wall blocks. The control module 8 is the control core of the device, which can send electrical signals to the servo motor 4 through a preset program or manual operation to realize... The servo motor 4's start / stop and speed adjustment control the rhythm of the pressing mechanism 5 and the guiding mechanism 6. The feeding hopper 21 receives externally transported concrete materials and facilitates manual venting and compaction. The material-separating plate 22 opens and closes under the drive of the plate push rod 221. Normally closed, it prevents concrete from falling into the feeding hopper 21, aiding in block shaping. When pouring is required, it opens, allowing the shaped blocks to detach without obstruction. The discharge chamber 23 serves as a transition channel for concrete. The inclined discharge chute 231 guides the concrete smoothly to the outside of the shaping box 2 using gravity. The pressing plate 51 abuts against the material-separating plate 22, allowing for synchronous operation when the material-separating plate 22 opens for discharge, preventing concrete loss during the block shaping process.The guide seat 52 provides sliding support for the guide slide rod 53, ensuring the pressure plate 51 moves smoothly in the vertical direction. The pressure spring 54 is in an extended state, elastically transmitting the driving force of the guide seat 52 to the pressure plate 51, helping the pressure plate 51 to reset and continuously applying pressure to the sides of the segments in the forming box 2. The pressure cam 411 rotates to achieve reciprocating vibration of the pressure plate 51. The servo motor 4 transmits power to the pressure cam 411 via the transmission shaft 41. The eccentric structure of the pressure cam 411, when rotating, drives the guide seat 52 to reciprocate, thereby driving the pressure plate 51 to achieve high-frequency reciprocating pressure vibration, thus applying pressure to the sides of the formed segments.

[0044] The guide seat 52 is also rotatably connected to a roller 521 corresponding to the pressure cam 411 via a bearing. The roller 521 and the guide slide rod 53 are arranged to avoid each other. A retaining ring part 531 is fixedly installed at one end of the guide slide rod 53 near the pressure plate 51. The two ends of the pressure spring 54 are respectively connected to the corresponding retaining ring part 531 and the guide seat 52. The roller 521 cooperates with the pressure cam 411 to convert the sliding friction between the pressure cam 411 and the guide seat 52 into rolling friction. The retaining ring part 531 provides positioning support for the pressure spring 54. It is fixedly installed on the guide slide rod 53 and can limit the axial displacement of the pressure spring 54, prevent the pressure spring 54 from shifting or falling off during the extension and contraction process, and ensure that the elastic force of the pressure spring 54 can be accurately transmitted to the pressure plate 51.

[0045] The guide slide rod 53 has a threaded end 532 at one end passing through the guide seat 52, and an adjusting nut 5321 with threaded engagement is provided at the other end of the threaded end 532 extending outside the mold box 3. A return spring 55 is also sleeved on the outside of the threaded end 532. The two ends of the return spring 55 are respectively connected to the corresponding adjusting nut 5321 and the guide seat 52. The engagement of the threaded end 532 and the adjusting nut 5321 constitutes an adjustment structure. By rotating the adjusting nut 5321, its position on the threaded end 532 can be changed, thereby adjusting the compression of the return spring 55 and realizing the adjustment of the preload of the return spring 55. The return spring 55 works in conjunction with the pressure spring 54. When the pressure cam 411 rotates to the non-pushing stroke, it can quickly drive the guide seat 52 and the pressure plate 51 to return to their original positions, ensuring the continuity of the reciprocating vibration of the pressure plate 51. Meanwhile, by adjusting the preload of the return spring 55, the compaction requirements of different grades of concrete can be adapted. For concrete with poor fluidity, the preload can be increased to increase the vibration amplitude, while for concrete with good fluidity, the preload can be reduced to avoid excessive vibration leading to aggregate settlement.

[0046] The material guiding mechanism 6 includes a lifting slide 61 slidably connected in the material discharge chute 231. One end of the lifting slide 61 extending into the molding box 2 is provided with a receiving seat 62. A buffer spring 65 is provided between the receiving seat 62 and the lifting slide 61. The receiving seat 62 and the material discharge chute 231 are arranged to avoid each other. The lifting slide 61 can slide back and forth along the extension direction of the material discharge chute 231, driving the receiving seat 62 to move synchronously to lift and guide the concrete blocks that fall down after the material separator plate 22 is opened and loses resistance. The receiving seat 62 is used to receive the concrete blocks that slide down the material discharge chute 231 and has an elastic buffering effect through the buffer spring 65. When the concrete blocks fall on the receiving seat 62, they can absorb the impact energy of the concrete, thereby reducing the impact when falling.

[0047] The receiving seat 62 has a guide slope 621 on the side away from the lifting slide 61, with the same inclination direction as the discharge chute 231. Vertically distributed guide rods 622 are also fixedly installed on the receiving seat 62. The end of the guide rod 622 away from the receiving seat 62 extends to the outside of the lifting slide 61. A buffer spring 65 is sleeved on the guide rod 622, with both ends abutting against the receiving seat 62 and the lifting slide 61 respectively. The guide slope 621 has the same inclination direction as the discharge chute 231, forming a continuous guide channel. This allows concrete blocks to smoothly transition from the discharge chute 231 to the guide slope 621. The guide slope 621 can alter the concrete... The concrete blocks fall in the direction of their descent, sliding along the discharge chute 231. The falling concrete blocks land on the receiving seat 62, descending synchronously with it. They are stopped and separated from the receiving seat 62 as they pass the guide ramp 621. Then, as the receiving seat 62 returns to its original position and rises, the guide ramp 621 lifts one side of the concrete block, causing it to slide along the discharge chute 231. The guide rod 622 provides guidance and support for the buffer spring 65, preventing it from bending or shifting during extension and retraction. This ensures the stable transmission of the elastic force of the buffer spring 65 and counteracts the impact force of the falling concrete blocks through elastic deformation.

[0048] The lifting slide 61 extends to one end of the molding box 2 and is hinged to a first connecting rod 63. A pin 64 is mounted on the first connecting rod 63. A second connecting rod 641 is hinged to the end of the pin 64 furthest from the first connecting rod 63. A swing arm 412 for driving the second connecting rod 641 is fixedly mounted on one end of the transmission shaft 41 that passes through the pressure cam 411. The swing arm 412 is hinged to the end of the second connecting rod 641 furthest from the pin 64. The first connecting rod 63, pin 64, second connecting rod 641, and swing arm 412 constitute a linkage transmission mechanism, enabling the servo motor 4 to move. The force is transmitted to the lifting slide 61. When the transmission shaft 41 rotates, it drives the swing arm 412 to rotate synchronously. The swing arm 412 pushes the second link 641 to move through the hinge point. The second link 641 drives the first link 63 to swing through the pin 64, thereby driving the lifting slide 61 to slide back and forth along the feeding chute 231. The guiding mechanism 6 and the pressing mechanism 5 share the same servo motor 4 to ensure that the rhythm of their actions is coordinated. That is, the feeding and guiding process and the pressing and vibration process are carried out synchronously. Moreover, since the material separator 22 acts in different cavities, they operate independently and do not interfere with each other.

[0049] An adjusting lever 642 is rotatably connected to the pin 64 between the first connecting rod 63 and the second connecting rod 641. One end of the adjusting lever 642, passing through the pin 64, is threadedly connected to the end of the transmission shaft 41, passing through the swing arm 412. The threaded connection between the adjusting lever 642 and the transmission shaft 41 constitutes an adjusting mechanism. By rotating the adjusting lever 642, the relative angle between the first connecting rod 63 and the second connecting rod 641 can be changed, thereby adjusting the sliding stroke of the lifting slide 61. When it is necessary to adjust the material guiding amplitude, simply rotating the adjusting lever 642 can change the movement range of the receiving seat 62, adapting to the material feeding requirements of different heights of retaining wall sections. Thus, during the stacking construction of retaining walls, no additional lifting equipment is required; only manual removal of the corresponding height of retaining wall section is needed.

[0050] The guide rail 1 has linearly arranged scales 11 along its length. The outer side of the molding box 2 is fixedly installed with a pointer 24 for indicating the scales 11. The scales 11 and pointer 24 cooperate to form a positioning indication structure for accurately positioning the moving position of the molding box 2 and the mold box 3 along the guide rail 1. The scales 11 are marked with clear graduations, and the pointer 24 can accurately indicate the current position of the molding box 2. Construction personnel can quickly adjust the position of the molding box 2 by observing the indication of the pointer 24 on the scales 11 according to the design dimensions of the retaining wall blocks.

[0051] When using this device to stack sections of a cast-in-place concrete retaining wall, the first step is to shape the concrete sections. First, the bolts on the locking rod 7 are matched with the mating ears 25 of the shaping box 2 to fix the mold box 3 to the shaping box 2, ensuring a tight seal between the two and preventing concrete leakage during pouring. Then, according to the design dimensions and stacking requirements of the retaining wall sections, the shaping box 2 and the mold box 3 are pushed to slide along the guide rail 1. With the help of the positioning indicator structure formed by the scale 11 on the guide rail 1 and the pointer 24 on the outside of the shaping box 2, the device is quickly adjusted to the preset construction position to achieve precise positioning of the section pouring position. The control module 8 on the shaping box 2 is used to compare with the reference and preset the start and stop time, speed and other parameters of the servo motor 4 to ensure that the action rhythm of the pressing mechanism 5 and the guiding mechanism 6 are coordinated and consistent and do not interfere with each other.

[0052] During the shaping of concrete blocks, concrete raw materials are first injected into the feeding hopper 21 at the top of the shaping box 2. At this time, the material separating plate 22 is closed under the drive of the plate push rod 221, preventing the concrete from falling and achieving temporary storage of the concrete in the shaping box 2, thus preventing premature loss of concrete. Then, manual air venting and vibration are performed. After the vibration is completed, the servo motor 4 is started through the control module 8. The servo motor 4 drives the pressure cam 411 to rotate through the transmission shaft 41. The pressure plate 51 opens under the drive of the pressure cam 411. When the eccentric structure of the pressure cam 411 rotates, it drives the guide seat 52 to reciprocate. The guide seat 52 transmits the driving force to the pressure plate 51 elastically through the pressure spring 54 in the extended state. At the same time, the guide slide rod 53 ensures that the pressure plate 51 moves smoothly in the vertical direction under the support of the guide seat 52. The pressure spring 54 helps the pressure plate 51 to quickly return to its original position and continuously applies pressure to the side of the concrete block in the molding box 2. With the high-frequency reciprocating vibration of the pressure plate 51, the side of the concrete block is uniformly compacted.

[0053] If it is necessary to adjust the compaction intensity of the blocks to suit different grades of concrete, the adjusting nut 5321 on the threaded end 532 of the guide slide rod 53 can be rotated to change the compression of the return spring 55, thereby adjusting the preload of the return spring 55. For concrete with poor fluidity, the preload can be increased to improve the vibration amplitude, while for concrete with good fluidity, the preload can be decreased to avoid aggregate settlement. The return spring 55 works in conjunction with the pressure spring 54 to quickly drive the pressure plate 51 to return to its original position when the pressure cam 411 is not in its pushing stroke, ensuring vibration continuity and compaction uniformity.

[0054] After the concrete blocks are shaped, the control module 8 drives the insert plate push rod 221 to open the material separating insert plate 22. When the material separating insert plate 22 is opened, the shaped concrete blocks are no longer obstructed and slide down the discharge chute 231 in the discharge chamber 23. The servo motor 4 drives the swing arm 412 to rotate synchronously through the transmission shaft 41. The linkage transmission mechanism consisting of the swing arm 412, the second connecting rod 641, the pin 64, and the first connecting rod 63 transmits power to the lifting slide 61, driving the lifting slide 61 to slide back and forth along the discharge chute 231. This causes the receiving seat 62 to move synchronously, lifting and guiding the falling concrete blocks. When the concrete blocks fall onto the receiving seat 62, the buffer spring 65 between the receiving seat 62 and the lifting slide 61, guided by the guide rod 622, undergoes elastic deformation, absorbing the impact energy of the falling blocks until they are transferred to the discharge chute 231. As the lifting slide 61 returns to its original position, the guide slope 621 on the receiving seat 62 pushes against one side of the blocks, causing the blocks to slide smoothly and separate along the discharge chute 231, thus completing the guiding and falling of the blocks.

[0055] If it is necessary to adapt to retaining wall blocks of different heights, the adjustable lever 642 can be rotated to change the relative angle between the first connecting rod 63 and the second connecting rod 641 through its threaded engagement with the transmission shaft 41, thereby adjusting the sliding stroke of the lifting slide 61 and adapting the movement range of the receiving seat 62. The unloading of blocks of different heights can be completed without the need for additional lifting equipment. According to the overall construction requirements of the retaining wall, the molding box 2 and the mold box 3 can be pushed to slide along the guide rail 1. The positioning indication function of the ruler 11 and the pointer 24 can be used again to adjust the device to the pouring or stacking position of the next block, assisting the operator in completing the stacking construction of the concrete retaining wall.

[0056] A process for constructing a segmented, overlapping device for cast-in-place gravity concrete retaining walls includes the following steps:

[0057] Step 1: When the device is needed, first fix the mold box 3 and the molding box 2 by using the bolt on the locking rod 7 to cooperate with the mating lug 25 of the molding box 2, push the two to slide along the guide rail 1, adjust to the preset construction position with the help of the scale 11 and pointer 24, and preset the parameters of the servo motor 4 through the control module 8.

[0058] Step two, then the concrete raw material is injected into the feeding hopper 21 at the top of the shaping box 2. At this time, the material isolation plate 22 is kept closed under the drive of the plate push rod 221, and the concrete is manually vented and compacted.

[0059] Step 3: The servo motor 4 will be started through the control module 8, which will drive the pressing cam 411 to rotate and make the pressing plate 51 vibrate back and forth to compact the sides of the concrete blocks. The adjusting nut 5321 will be rotated as needed to adjust the preload of the reset spring 55 to adapt to different grades of concrete.

[0060] Step 4: Drive the insert plate push rod 221 through the control module 8 to open the material separating insert plate 22, so that the shaped concrete block slides down along the material discharge chute 231 and is supported and guided by the material receiving seat 62 to fall smoothly.

[0061] Step 5: Rotate the lever 642 as needed to adjust the travel of the lifting slide 61 to adapt to different height blocks, and push the device to slide along the guide rail 1 to adjust to the position of the next block, assisting in completing the overlapping construction.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A construction device for segmented and stacked construction of cast-in-place gravity concrete retaining walls, characterized in that: Includes a guide rail (1), on which a molding box (2) for pouring concrete and a mold box (3) for dividing the molding retaining wall into blocks are slidably connected respectively. The molding box (2) and the mold box (3) are respectively provided with a pressing mechanism (5) and a guiding mechanism (6) driven by a servo motor (4). The mold box (3) is detached and installed on the molding box (2) by a locking rod (7). The molding box (2) is provided with a docking side ear (25) corresponding to the locking rod (7). The molding box (2) is also provided with a control module (8) that is electrically connected to the servo motor (4). The top of the shaping box (2) is provided with a feeding hopper (21) for adding concrete. The shaping box (2) is slidably connected to the feeding hopper (21) by a material separating plate (22) driven by a plate push rod (221). The shaping box (2) is provided with a discharge cavity (23) below the material separating plate (22). The discharge cavity (23) is provided with inclined discharge chutes (231). The pressing mechanism (5) includes a pressing plate (51) slidably connected in the mold box (3), and the pressing plate (51) and the partition plate (22) extending into the molding box (2) are connected to each other. The mold box (3) is also slidably connected with a guide seat (52) distributed parallel to the pressing plate (51). The side of the pressing plate (51) away from the partition plate (22) is also provided with symmetrically distributed guide slide rods (53), and each guide slide rod (53) is fitted with a pressing spring (54). The pressing spring (54) is located between the pressing plate (51) and the guide seat (52). The servo motor (4) is fixedly installed in the mold box (3), and the output shaft of the servo motor (4) is connected to the transmission shaft (41). The transmission shaft (41) is provided with a pressure cam (411) for driving the guide seat (52).

2. The cast-in-place gravity concrete retaining wall segmented and overlapping construction device according to claim 1, characterized in that, The guide seat (52) is also rotatably connected to a roller (521) corresponding to the pressure cam (411) via a bearing. The roller (521) and the guide slide rod (53) are arranged to avoid each other. A retaining ring (531) is fixedly installed at one end of the guide slide rod (53) near the pressure plate (51). The two ends of the pressure spring (54) are respectively connected to the corresponding retaining ring (531) and the guide seat (52).

3. The cast-in-place gravity concrete retaining wall segmented and stacked construction device according to claim 2, characterized in that, The guide slide rod (53) has a threaded end (532) at one end that passes through the guide seat (52), and the threaded end (532) extends to the outside of the mold box (3) and is connected to the adjusting nut (5321) with a threaded fit. A return spring (55) is also sleeved on the outside of the threaded end (532), and the two ends of the return spring (55) are respectively connected to the corresponding adjusting nut (5321) and the guide seat (52).

4. The cast-in-place gravity concrete retaining wall segmented and overlapping construction device according to claim 1, characterized in that, The material guiding mechanism (6) includes a lifting slide (61) slidably connected in the unloading chute (231). The lifting slide (61) extends into the molding box (2) and is provided with a receiving seat (62). A buffer spring (65) is provided between the receiving seat (62) and the lifting slide (61), and the receiving seat (62) and the unloading chute (231) are arranged to avoid each other.

5. The cast-in-place gravity concrete retaining wall segmented and overlapping construction device according to claim 4, characterized in that, The receiving seat (62) has a guide slope (621) on the side away from the lifting slide (61) with the same inclination direction as the unloading chute (231). The receiving seat (62) is also fixedly installed with vertically distributed guide rods (622). One end of the guide rod (622) away from the receiving seat (62) extends to the outside of the lifting slide (61). The buffer spring (65) is sleeved on the outside of the guide rod (622) and its two ends are respectively connected to the receiving seat (62) and the lifting slide (61).

6. The cast-in-place gravity concrete retaining wall segmented and stacked construction device according to claim 5, characterized in that, The lifting slide (61) extends to the outside of the molding box (2) and is hinged to a first connecting rod (63). A pin (64) is provided on the first connecting rod (63). The end of the pin (64) away from the first connecting rod (63) is hinged to a second connecting rod (641). The transmission shaft (41) passes through the end of the pressure cam (411) and is also fixedly mounted with a swing arm (412) for driving the second link (641), and the swing arm (412) is hinged to the end of the second link (641) away from the pin (64).

7. The cast-in-place gravity concrete retaining wall segmented and overlapping construction device according to claim 6, characterized in that, An adjusting lever (642) is rotatably connected to the pin (64) and located between the first link (63) and the second link (641). One end of the adjusting lever (642) passing through the pin (64) is threadedly connected to one end of the transmission shaft (41) passing through the swing arm (412).

8. The cast-in-place gravity concrete retaining wall segmented and overlapping construction device according to claim 1, characterized in that, The guide rail (1) has linearly arranged scales (11) along its length, and the outer side of the molding box (2) is fixedly equipped with a pointer (24) for indicating the scales (11).

9. A process for constructing a segmented, overlapping construction device for a cast-in-place gravity concrete retaining wall, applied to the segmented, overlapping construction device for a cast-in-place gravity concrete retaining wall as described in claim 8, characterized in that: Includes the following steps: Step 1: When the device is needed, first fix the mold box (3) and the molding box (2) by using the bolt on the locking rod (7) and the mating side ear (25) of the molding box (2), push the two to slide along the guide rail (1), adjust to the preset construction position with the help of the ruler (11) and pointer (24), and preset the parameters of the servo motor (4) through the control module (8); Step 2: Then, the concrete raw material is injected into the feeding hopper (21) at the top of the plastic box (2). At this time, the material isolation plate (22) is kept closed under the drive of the plate push rod (221) to manually vent and vibrate the concrete. Step 3: The servo motor (4) will be started by the control module (8) to drive the pressing cam (411) to rotate and make the pressing plate (51) vibrate back and forth to compact the sides of the concrete blocks. The adjusting nut (5321) will be rotated as needed to adjust the preload of the reset spring (55) to adapt to different grades of concrete. Step 4: Drive the insert plate push rod (221) through the control module (8) to open the material-separating insert plate (22), so that the shaped concrete blocks slide down along the material discharge chute (231), and the blocks fall smoothly with the help of the receiving seat (62). Step 5: Rotate the adjustment lever (642) as needed to adjust the travel of the lifting slide (61) to match different height blocks, and push the device along the guide rail (1) to slide and adjust to the next block position to assist in completing the overlapping construction.

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