Template vibration device and cast-in-place guardrail forming equipment

Abstract

The application discloses a template vibration device and a cast-in-place guardrail forming equipment, and belongs to the technical field of bridge construction. The template vibration device comprises a mounting assembly, a driving mechanism and a vibration mechanism. The rack ring of the mounting assembly is arranged on the outer surface of a template and is fixedly connected with the template at both ends. The mounting box is sleeved with the rack and is provided with an extension hole on the side facing the template. The driving mechanism is installed in the mounting box. The stepping motor of the driving mechanism is fixed in the mounting box. The rotating rod is rotatably connected to the mounting box. The rotating wheel is coaxially connected to the rotating rod and is engaged with the rack. The adapter is perpendicularly connected to the rotating rod. The vibration mechanism is rotatably connected to the adapter. The stepping motor can drive the rotating rod or the rotating wheel to rotate, so that the mounting box can move along the rack. The vibration mechanism can periodically extend and retract the extension hole. The cast-in-place guardrail forming equipment comprises the template and the template vibration device. The application can improve the forming quality of the guardrail and reduce the difficulty of manual operation.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a formwork vibration device and a cast-in-place guardrail forming equipment. Background Technology

[0002] In the construction of municipal bridges, the pouring of bridge railings is one of the core processes, and the density of the poured concrete is a key indicator for ensuring the structural strength and stability of the railings. To ensure the quality of concrete pouring, vibration is used to eliminate air bubbles and reduce voids within the concrete, allowing the concrete to fully bond with the reinforcing steel and other structural components. Therefore, vibration devices are indispensable in this type of pouring construction, and their effectiveness has a significant impact on the overall quality of the bridge project.

[0003] Traditional vibration equipment is an immersion vibrator, which is operated by the operator at will according to the pouring requirements. During the pouring process, the concrete is vibrated to promote full mixing.

[0004] However, when using an immersion vibrator for internal vibration, a large number of air bubbles remain on the inner surface of the template and at the template joints, affecting the flatness of the guardrail post surface, impacting the project's appearance and quality, and potentially even causing structural hazards due to insufficient surface compaction. Furthermore, when pouring high-height guardrail posts, relying solely on manual operation of the vibrator for auxiliary vibration is extremely inconvenient, not only due to high labor intensity but also because of uneven vibration, thus hindering construction efficiency and project quality improvement.

[0005] Therefore, there is an urgent need to propose a template vibration device and a cast-in-place guardrail forming equipment to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a formwork vibration device and a cast-in-place guardrail forming equipment to reduce air bubbles on the concrete surface and at the formwork connection, improve the quality of guardrail forming, and reduce the difficulty of manual operation.

[0007] Based on the above concept, the technical solution adopted by this invention is as follows:

[0008] A template vibration device, comprising:

[0009] The mounting assembly includes a mounting box and a rack. The rack is arranged around the outer surface of the template and its two ends are fixedly connected to the template. The mounting box is fitted onto the rack and has an extension hole on the side facing the template.

[0010] The drive mechanism, installed in the mounting box, includes a stepper motor, a rotating wheel, a rotating rod, and an adapter. The stepper motor is fixed in the mounting box, the rotating rod is rotatably connected to the mounting box, the rotating wheel is coaxially connected to the rotating rod and meshes with the rack, and the adapter is vertically connected to the rotating rod.

[0011] A vibration mechanism is rotatably connected to the adapter. The stepper motor can drive the rotating rod or the rotating wheel to rotate, so that the mounting box can move along the rack. The vibration mechanism can periodically extend and retract the extension hole.

[0012] Furthermore, the outer wall of the mounting box is provided with a sliding groove, and the template vibration device also includes an adjustment mechanism. The adjustment mechanism includes a slider, a resistor strip, and a controller. The resistor strip is fixedly disposed at the bottom of the sliding groove along the length direction of the sliding groove. The slider is slidably installed in the sliding groove and makes sliding electrical contact with the resistor strip. The two ends of the resistor strip are respectively connected to the positive and negative terminals of the power supply. The slider is electrically connected to the analog input port of the controller to form a voltage divider detection circuit for collecting position voltage signals. The controller is electrically connected to the stepper motor and is configured to: collect the voltage signal output by the voltage divider detection circuit, and output a pulse frequency signal for adjusting the speed of the stepper motor according to the voltage signal.

[0013] Furthermore, the vibration mechanism includes a connecting frame, a first elastic element, an impact element, a magnetic block, and an electromagnet. The connecting frame is rotatably connected to the adapter and has a movable groove on the side facing the protrusion hole. The impact element is slidably inserted through the protrusion hole and the movable groove and is connected to the bottom of the movable groove through the first elastic element. The magnetic block is disposed inside the impact element. The electromagnet is disposed in the connecting frame opposite the magnetic block. The controller is electrically connected to the electromagnet and is further configured to output a pulse width modulation signal for adjusting the magnetic force of the electromagnet based on the voltage signal output by the voltage divider detection circuit.

[0014] Furthermore, the vibration mechanism also includes a support rod, which is fixedly disposed in the movable groove and extends along the sliding direction of the impact member. The impact member is sleeved on the support rod and can slide along the support rod.

[0015] Furthermore, the adjustment mechanism also includes a second elastic element and a limiting block. The sidewall of the slide groove is provided with a plurality of limiting grooves spaced apart along the length direction, and the sidewall of the slider is provided with a groove. One end of the second elastic element is connected to the bottom of the groove, and the other end is connected to the limiting block. When the slider slides along the slide groove, the limiting block can squeeze the second elastic element back into the groove, or it can be inserted into the limiting groove under the elastic force of the second elastic element.

[0016] Furthermore, pressure switches are provided on both sides of the mounting box opposite to each other along the moving direction. The two pressure switches are electrically connected to the forward and reverse circuits of the stepper motor. When the mounting box moves to the end of the rack, the pressure switch on the corresponding side can be triggered by the pressure of the rack end to switch the rotation direction of the stepper motor.

[0017] Furthermore, the drive mechanism also includes a drive gear, which is connected to the output end of the stepper motor and meshes with the rotating wheel.

[0018] Furthermore, the installation assembly also includes a guide member, which is circumferentially disposed on the outer surface of the template and fixedly connected to the template at both ends. The installation box is sleeved on the guide member and can slide along the guide member.

[0019] The cast-in-place guardrail forming equipment includes multiple templates and multiple template vibration devices. The multiple templates are detachably connected in sequence along the vertical direction to form a casting cavity. The multiple template vibration devices are correspondingly arranged on the outer surface of the multiple templates.

[0020] Furthermore, the template is made of a transparent material.

[0021] The beneficial effects of this invention are:

[0022] The template vibration device proposed in this invention establishes a stable installation foundation for the vibration mechanism to directly act on the template by fixing a rack ring around the outer surface of the template and fitting an installation box onto the rack. This allows the vibration mechanism to directly transmit vibration force through the template, effectively eliminating a large number of residual air bubbles on the inner surface and joints of the template, improving the flatness, cleanliness, and surface density of the concrete surface, and avoiding structural hazards. Secondly, since the rotating rod is fixedly connected to the rotating wheel and the installation box, and the rotating wheel meshes with the rack, the installation box can move stably along the rack when the stepper motor drives the rotating rod or the rotating wheel to rotate, thus solving the problem of high labor intensity for manual vibration. At the same time, when the rotating rod rotates, the adapter connected perpendicularly to the rotating rod moves in tandem, thereby causing the vibration mechanism, which is rotatably connected to the adapter, to periodically extend and retract the extension hole of the installation box. This allows the vibration mechanism to continuously and evenly apply vibration force to the template, thereby improving construction quality.

[0023] The cast-in-place guardrail forming equipment proposed in this invention features a structure with multiple vertically detachable and interconnected templates. This allows for flexible assembly of the template quantity based on the actual pouring height of the guardrail, adapting to the construction needs of guardrails with different heights and specifications, thus enhancing the equipment's versatility and applicability. Simultaneously, multiple template vibration devices are correspondingly set to each template, enabling synchronous vibration of the entire pouring cavity. This ensures uniform concrete density at corresponding locations on each template section, effectively eliminating air bubbles on the inner surface of the templates and at joints, thereby improving the concrete's density and surface smoothness. Furthermore, this equipment overcomes the shortcomings of traditional manual vibration methods, such as high labor intensity and uneven operation, achieving a simultaneous improvement in construction efficiency and project quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the template vibration device installed on the template according to an embodiment of the present invention;

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a three-dimensional structural diagram of the mounting box provided in an embodiment of the present invention;

[0027] Figure 4 This is a cross-sectional view of the mounting box provided in an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the drive mechanism and adjustment mechanism provided in the embodiments of the present invention;

[0029] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0030] Figure 7 This is a schematic diagram of the adjustment mechanism provided in an embodiment of the present invention;

[0031] Figure 8 This is a cross-sectional view of the vibration mechanism provided in an embodiment of the present invention;

[0032] Figure 9 yes Figure 8 Enlarged view of point C in the middle;

[0033] Figure 10 This is a structural schematic diagram of the cast-in-place guardrail forming equipment provided in an embodiment of the present invention.

[0034] In the picture:

[0035] 1. Mounting components; 11. Mounting box; 110. Slide groove; 1101. Limiting groove; 111. Box body; 112. Divider block; 12. Rack; 13. Guide component;

[0036] 2. Drive mechanism; 21. Stepper motor; 22. Rotating wheel; 23. Rotating rod; 24. Adapter; 25. Drive gear;

[0037] 3. Vibration mechanism; 31. Connecting frame; 310. Movable groove; 32. First elastic element; 33. Impact element; 331. Support frame; 332. Impact block; 34. Magnetic block; 35. Electromagnet; 36. Support rod;

[0038] 4. Adjustment mechanism; 41. Slider; 411. Contact head; 42. Resistance bar; 43. Second elastic element; 44. Limiting block;

[0039] 5. Power supply;

[0040] 6. Pressure switch;

[0041] 7. Connecting pipe;

[0042] 100. Template; 101. Slab; 1011. First connecting part; 1012. Second connecting part; 1013. Pouring port. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0044] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 based on the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0047] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0048] See Figures 1 to 9 This invention provides a template vibration device, including an installation assembly 1, a drive mechanism 2, and a vibration mechanism 3. The installation assembly 1 includes an installation box 11 and a rack 12. The rack 12 is arranged around the outer surface of the template 100 and its two ends are fixedly connected to the template 100. The installation box 11 is fitted onto the rack 12 and has an extension hole on the side facing the template 100. The drive mechanism 2 is installed inside the installation box 11 and includes a stepper motor 21, a rotating wheel 22, a rotating rod 23, and an adapter 24. The stepper motor 21 is fixed inside the installation box 11. The rotating rod 23 is rotatably connected to the installation box 11. The rotating wheel 22 is coaxially connected to the rotating rod 23 and meshes with the rack 12. The adapter 24 is vertically connected to the rotating rod 23. The vibration mechanism 3 is rotatably connected to the adapter 24. The stepper motor 21 can drive the rotating rod 23 or the rotating wheel 22 to rotate, so that the installation box 11 can move along the rack 12. The vibration mechanism 3 can periodically extend and retract the extension hole.

[0049] By placing and fixing the rack 12 around the outer surface of the template 100, and fitting the mounting box 11 onto the rack 12, a stable installation foundation is built for the vibration mechanism 3 to directly act on the template 100. This allows the vibration mechanism 3 to directly transmit vibration force through the template 100, effectively eliminating a large number of air bubbles remaining on the inner surface and joints of the template 100, improving the flatness, cleanliness, and surface density of the concrete surface, and avoiding structural hazards. Secondly, since the rotating rod 23 is fixedly connected to the rotating wheel 22 and rotatably connected to the mounting box 11, and the rotating wheel 22... 2 meshes with the rack 12. When the stepper motor 21 drives the rotating rod 23 or the rotating wheel 22 to rotate, the mounting box 11 can move stably along the rack 12, thus solving the problem of high labor intensity of manual vibration. At the same time, when the rotating rod 23 rotates, the adapter 24, which is perpendicularly connected to the rotating rod 23, moves in conjunction with it, causing the vibration mechanism 3, which is rotatably connected to the adapter 24, to periodically extend and retract the extension hole of the mounting box 11, so that the vibration mechanism 3 can continuously and evenly apply vibration force to the template 100, thereby improving the vibration quality.

[0050] Specifically, such as Figure 1As shown, the mounting assembly 1 also includes a guide member 13, which is circumferentially disposed on the outer surface of the template 100 and fixedly connected to the template 100 at both ends. The mounting box 11 is fitted onto the guide member 13 and can slide along the guide member 13. The guide member 13 and the rack 12 cooperate to form a double guide limit for the mounting box 11, which can prevent the mounting box 11 from deviating or shaking when moving along the template 100, and ensure the accuracy of the moving trajectory of the mounting box 11. At the same time, the guide member 13 can share the pressure of the mounting box 11 on the rack 12, prevent the rack 12 from deforming due to uneven force, and further ensure the stability of the meshing transmission.

[0051] More specifically, the mounting assembly 1 includes at least two guide members 13, which are vertically distributed on both sides of the rack 12. The arrangement of the guide members 13 on both sides of the rack 12 prevents the mounting box 11 from tilting to one side of the rack 12, ensuring that the rotating wheel 22 and the rack 12 always maintain precise engagement, and further improving the stability of the movement of the mounting box 11.

[0052] In this embodiment, the mounting component 1 includes two guide members 13.

[0053] In other embodiments, the mounting assembly 1 may also include four guide members 13. The number of guide members 13 is not specifically limited here and can be flexibly adjusted according to actual needs.

[0054] Specifically, such as Figure 3 As shown, pressure switches 6 are provided on both opposite sides of the mounting box 11 along the direction of movement. The two pressure switches 6 are electrically connected to the forward and reverse circuits of the stepper motor 21, respectively. When the mounting box 11 moves to the end of the rack 12, the pressure switch 6 on the corresponding side is triggered by the pressure from the end of the rack 12, thus switching the rotation direction of the stepper motor 21. The pressure switches 6 on both sides of the mounting box 11, in conjunction with the forward and reverse circuits of the stepper motor 21, enable continuous cyclic automated vibration of the template 100 surface. This not only reduces the difficulty of operation for the operator but also, through continuous reciprocating motion, more effectively removes air bubbles from the concrete, improves density, and further enhances construction efficiency and project reliability. It should be noted that the connection method between the pressure switches 6 and the forward and reverse circuits of the stepper motor 21 is a conventional technique in this field and will not be described in detail.

[0055] Specifically, such as Figure 3 and Figure 4As shown, the mounting box 11 has multiple protruding holes spaced apart along the extension direction of the rotating rod 23 on the side facing the template 100. The driving mechanism 2 includes multiple adapters 24, which are spaced apart on the rotating rod 23 along its extension direction. The template vibration device includes multiple vibration mechanisms 3, which are rotatably connected to the adapters 24 in a one-to-one correspondence. The rotation of the rotating rod 23 causes the multiple vibration mechanisms 3 to periodically extend and retract through the protruding holes in a one-to-one correspondence. The one-to-one correspondence between the multiple protruding holes, the multiple adapters 24, and the multiple vibration mechanisms 3 enables multi-point synchronous vibration under the drive of the rotating rod 23, increasing the vibration coverage of the template 100 surface, further eliminating a large number of air bubbles remaining on the inner surface and joints of the template 100, and improving the flatness, cleanliness, and surface density of the concrete surface.

[0056] The stepper motor 21 can directly drive the rotating rod 23 to rotate, or indirectly drive the rotating wheel 22 to rotate.

[0057] Specifically, such as Figure 4 and Figure 5 As shown, the drive mechanism 2 also includes a drive gear 25, which is connected to the output end of the stepper motor 21 and meshes with the rotating wheel 22. The stepper motor 21 can achieve precise speed control. Through the meshing transmission of the drive gear 25 and the rotating wheel 22, the moving speed and stroke of the mounting box 11 can be precisely controlled. At the same time, the gear meshing transmission has the characteristics of high transmission efficiency and stable torque transmission, which can ensure the smooth movement of the mounting box 11.

[0058] More specifically, such as Figure 4 As shown, the mounting box 11 includes a box body 111 and a partition block 112. The box body 111 has a receiving cavity, and an extension hole is formed on the box body 111 and communicates with the receiving cavity. The partition block 112 is fixedly installed in the receiving cavity and divides the receiving cavity into two chambers. A movable chamber is provided within the partition block 112, and a rotating wheel 22 is located within the movable chamber. A rotating rod 23 rotatably passes through the partition block 112, with both ends correspondingly extending into the two chambers and rotatably connected to the box body 111. Multiple vibration mechanisms 3 are disposed in the two chambers. The partition block 112 provides protection for the connection between the rotating wheel 22 and the rotating rod 23. Simultaneously, the configuration of the rotating rod 23, with both ends rotatably connected to the box body 111 and the middle section passing through the partition block 112, improves the support stability of the rotating rod 23, preventing it from shaking when driving multiple vibration mechanisms 3, and ensuring that the vibration mechanisms 3 are accurately aligned with the extension hole.

[0059] In this embodiment, the mounting box 11 is a cuboid structure, the receiving cavity is a cuboid cavity, the partition block 112 is located in the middle of the length direction of the receiving cavity, and the template vibration device includes eight vibration mechanisms 3, with four vibration mechanisms 3 disposed in each cavity.

[0060] Specifically, such as Figure 4 , Figure 5 and Figure 6 As shown, the outer wall of the mounting box 11 has a sliding groove 110. The template vibration device also includes an adjustment mechanism 4. The adjustment mechanism 4 includes a slider 41, a resistor strip 42 and a controller. The resistor strip 42 is fixedly set at the bottom of the sliding groove 110 along the length direction of the sliding groove 110. The slider 41 is slidably installed in the sliding groove 110 and makes sliding electrical contact with the resistor strip 42. The two ends of the resistor strip 42 are respectively connected to the positive and negative terminals of the power supply 5. The slider 41 is electrically connected to the analog input port of the controller to form a voltage divider detection circuit for collecting position voltage signals. The controller is electrically connected to the stepper motor 21 and is configured to: collect the voltage signal output by the voltage divider detection circuit and output a pulse frequency signal for adjusting the speed of the stepper motor 21 according to the voltage signal.

[0061] Construction workers can manually adjust the position of slider 41 within the chute 110 according to actual working conditions such as concrete slump and pouring speed. When the position of slider 41 changes, the effective resistance value of resistor 42 connected to the controller's detection end changes synchronously, and the corresponding voltage signal changes accordingly. After the controller collects and processes this voltage signal, it outputs a pulse control signal of the corresponding frequency to stepper motor 21, thereby achieving precise adjustment of the stepper motor 21's speed. When the poured concrete has a low slump and high viscosity, making it easy to trap air bubbles inside, construction workers can slide slider 41 to the high parameter end. At this time, the effective resistance value of resistor 42 detected by the controller decreases, corresponding to the output of a high voltage signal. The controller then increases the output pulse frequency, driving the stepper motor 21 to rotate faster, which in turn drives the mounting box 11 to move along the rack 12 at a synchronously higher speed, and the impact frequency of the vibration mechanism 3 also increases accordingly. High-frequency vibration can quickly break down the viscous resistance inside the concrete, causing internal air bubbles to escape rapidly and aggregates to be evenly distributed, effectively avoiding pouring defects such as honeycomb and voids caused by poor concrete fluidity. When the concrete slump is high and the fluidity is good, the construction personnel can adjust the slider 41 to the low parameter end. The effective resistance value of the resistor bar 42 detected by the controller increases, and a low voltage signal is output accordingly. The controller reduces the pulse frequency accordingly, the stepper motor 21 speed slows down, and the moving speed of the mounting box 11 and the impact frequency of the vibration mechanism 3 decrease synchronously. This avoids problems such as concrete stratification and aggregate segregation caused by excessive vibration, ensuring the quality of concrete pouring.

[0062] In this embodiment, the slider 41 is provided with a contact head 411 that contacts the resistor bar 42 on the side facing the resistor bar 42.

[0063] Specifically, such as Figure 7As shown, the adjustment mechanism 4 also includes a second elastic element 43 and a limiting block 44. Multiple limiting grooves 1101 are spaced apart along the length of the sidewall of the slide groove 110. A groove is formed on the sidewall of the slider 41. One end of the second elastic element 43 is connected to the bottom of the groove, and the other end is connected to the limiting block 44. When the slider 41 slides along the slide groove 110, the limiting block 44 can squeeze the second elastic element 43 back into the groove, or it can insert into the limiting groove 1101 under the elastic force of the second elastic element 43. When the construction worker slides the slider 41, the limiting block 44 compresses the second elastic element 43 and slides past the edge of the limiting groove 1101. When the slider 41 slides to the corresponding position of a certain limiting groove 1101, the limiting block 44 quickly inserts into the limiting groove 1101 under the elastic force of the second elastic element 43, thereby limiting the position of the slider 41 and preventing the slider 41 from sliding due to vibration during the movement of the mounting box 11.

[0064] More specifically, the adjusting mechanism 4 includes two second elastic elements 43 and two limiting blocks 44. The slide groove 110 has multiple limiting grooves 1101 symmetrically formed on its two opposite sidewalls along its width direction. The slider 41 has grooves formed on its two opposite sidewalls perpendicular to the sliding direction. The two second elastic elements 43 are connected one-to-one to the bottom of the two grooves and the two limiting blocks 44. The adjusting mechanism 4 symmetrically arranges the second elastic elements 43 and limiting blocks 44 on both sides of the slider 41, and, in conjunction with the multiple limiting grooves 1101 on the sidewalls of the slide groove 110, forms a double-sided symmetrical positioning structure, further improving the positioning stability of the slider 41.

[0065] More specifically, such as Figure 4 , Figure 8 and Figure 9 As shown, the vibration mechanism 3 includes a connecting frame 31, a first elastic element 32, an impact element 33, a magnetic block 34, and an electromagnet 35. The connecting frame 31 is rotatably connected to the adapter 24 and has a movable groove 310 on the side facing the protrusion hole. The impact element 33 can slide through the protrusion hole and the movable groove 310 and is connected to the bottom of the movable groove 310 through the first elastic element 32. The magnetic block 34 is disposed inside the impact element 33. The electromagnet 35 is disposed inside the connecting frame 31 opposite the magnetic block 34. The controller is electrically connected to the electromagnet 35 and is further configured to output a pulse width modulation signal for adjusting the magnetic force of the electromagnet 35 according to the voltage signal output by the voltage divider detection circuit.

[0066] Operators can set working parameters by sliding slider 41 according to site conditions such as concrete fluidity and pouring volume: When dealing with high-viscosity concrete that is prone to generating air bubbles, slider 41 is slid to the corresponding high parameter end, and the controller synchronously outputs a high-frequency pulse signal to increase the moving speed of the mounting box 11 and the vibration frequency of the impact member 33, and outputs a high duty cycle pulse width modulation signal to drive the electromagnet 35 to generate a strong magnetic field, attracting the magnetic block 34 to overcome the elastic force of the first elastic member 32, so that the impact member 33 and the connecting frame 31 are relatively locked, reducing the buffering effect and forming a rigid impact mode, thereby achieving strong vibration of the template; When dealing with good fluidity or small volume concrete, slider 41 is slid to the low parameter end, and the controller synchronously reduces the pulse frequency and pulse width modulation duty cycle, the mounting box 11 moves at a slower speed, and the electromagnetic force weakens. The impact member 33 extends under the action of the first elastic member 32, increasing the swing radius and absorbing part of the impact energy through the buffer of the first elastic member 32 during impact, forming a gentle vibration mode.

[0067] In this embodiment, the adapter 24 is a U-shaped rod, and the two ends of the U-shaped rod are rigidly connected to the rotating rod 23 so as to rotate synchronously with the rotating rod 23; the connecting frame 31 is rotatably sleeved on the middle rod of the U-shaped rod, and the rotation of the middle rod drives the connecting frame 31 to drive the vibration mechanism 3 to complete the telescopic vibration action.

[0068] In this embodiment, a connecting pipe 7 is also provided at the bottom of the connecting frame 31, and wires for connecting the electromagnet are provided inside the connecting pipe 7.

[0069] In this embodiment, both the first elastic element 32 and the second elastic element 43 are springs.

[0070] It should be noted that the circuit connection between the controller and the slider 41, the stepper motor 21 and the electromagnet 35, as well as the mapping algorithm inside the controller used to generate corresponding pulse frequency signals and pulse width modulation signals based on voltage signals, are all conventional technical means in this field and will not be elaborated here.

[0071] More specifically, the vibration mechanism 3 also includes a support rod 36, which is fixedly disposed within the movable groove 310 and extends along the sliding direction of the impact member 33. The impact member 33 is sleeved on the support rod 36 and can slide along the support rod 36. The support rod 36 provides axial guidance and stable support for the reciprocating motion of the impact member 33, preventing the impact member 33 from swaying or jamming during reciprocating motion and when subjected to lateral impacts.

[0072] More specifically, the vibration mechanism 3 includes two support rods 36, and the impact member 33 includes a connected support frame 331 and an impact block 332. The support frame 331 is a T-shaped block and is slidably disposed within the movable groove 310. The two support rods 36 are correspondingly inserted through the protruding ends of the bottom of the T-shaped block, and the impact block 332 is slidably disposed within the protruding hole. The two support rods 36 are symmetrically inserted through the bottom ends of the T-shaped block, which allows the support frame 331 to slide smoothly and axially within the movable groove 310, and also resists the torque and lateral force generated by periodic impacts.

[0073] In this embodiment, a through groove is provided at the bottom of the support frame 331, and one end of the first elastic member 32 is connected to the bottom of the through groove, and the other end is connected to the bottom of the movable groove 310.

[0074] See Figure 1 and Figure 10 The present invention also provides a cast-in-place guardrail forming equipment, including multiple templates 100 and multiple template vibration devices. The multiple templates 100 are detachably connected in sequence along the vertical direction to form a casting cavity, and the multiple template vibration devices are correspondingly arranged on the outer surface of the multiple templates 100.

[0075] The structural design of multiple vertically detachable and interconnected templates 100 allows for flexible assembly of the template quantity according to the actual pouring height of the cast-in-place guardrail, adapting to the construction needs of guardrails with different height specifications and improving the equipment's versatility and applicability. Simultaneously, multiple template vibration devices are correspondingly set up one-to-one with each template 100, enabling synchronous vibration operation across the entire pouring cavity. This ensures uniform concrete density at corresponding locations on each template section, effectively eliminating air bubbles remaining on the inner surface of the template 100 and at joints, thereby improving concrete density and surface smoothness. Furthermore, this equipment overcomes the shortcomings of traditional manual vibration methods, such as high labor intensity and uneven operation, achieving simultaneous improvement in construction efficiency and project quality.

[0076] In this embodiment, each template 100 has a pouring port 1013 on its top outer surface that connects to the pouring cavity. After the template 100 is assembled section by section, the construction workers can pour concrete into each section through the pouring port 1013 to avoid segregation of the concrete due to its own weight during the pouring of the high guardrail.

[0077] Specifically, the template 100 is made of transparent material. Construction personnel can directly observe the flow state, filling condition, and air bubble discharge progress of the concrete in the pouring cavity; at the same time, based on the observed changes in concrete density, they can adjust the speed of the stepper motor 21 through the adjusting mechanism 4, change the moving speed of the mounting box 11 along the rack 12 and the vibration frequency of the vibration mechanism 3, and simultaneously adjust the excitation frequency of the electromagnet in the vibration mechanism 3 to change the vibration intensity of the vibration mechanism 3.

[0078] In this embodiment, template 100 is made of transparent steel-plastic material.

[0079] In other embodiments, template 100 is transparent polycarbonate.

[0080] Specifically, the template 100 is formed by splicing two semi-cylindrical hollow plates 101 together. A first connecting portion 1011 is provided at the splicing end of the two plates 101. The first connecting portion 1011 extends along the length of the plate 101 and has a first connecting hole. Adjacent first connecting portions 1011 are joined together and connected by a first fastener passing through the first connecting hole. The template 100, with its structure of two semi-cylindrical hollow plates 101 spliced ​​together, is smaller and lighter after disassembly, reducing transportation difficulty and handling intensity. Simultaneously, the cooperation between the first connecting portion 1011 and the first fastener allows for rapid assembly and disassembly without complex tools, improving on-site installation efficiency.

[0081] Specifically, the top and bottom of the template 100 are provided with multiple second connecting parts 1012, which are spaced circumferentially around the template 100. Each second connecting part 1012 has a second connecting hole. The second connecting part 1012 at the bottom of the upper template 100 fits and connects with the second connecting part 1012 at the top of the lower template 100, and is connected by a second fastener passing through the second connecting hole. The second connecting parts 1012 spaced circumferentially at the top and bottom of the template 100, together with the second fastener, can achieve precise docking and firm fixation of the upper and lower templates 100, ensuring the consistency of the overall axis after splicing multiple template sections 100, and ensuring that the verticality of the cast-in-place guardrail meets the standard. At the same time, the circumferentially spaced connection structure is evenly stressed, which can effectively disperse the force of the concrete lateral pressure on the splice during the pouring process, and avoid deformation or leakage at the splice of the template 100. In addition, the setting of the second connecting hole makes the assembly and disassembly of the upper and lower templates 100 simple.

[0082] The first and second fasteners can be bolts or pins, and the choice can be made flexibly according to the construction scenario and connection strength requirements.

[0083] Specifically, the inner surface of the template 100 is provided with patterned grooves, and the outer surface is fixedly connected with reinforcing ribs. The patterned grooves on the inner surface of the template 100 can create an anti-slip texture on the surface of the cast-in-place guardrail after it is formed, improving the safety and aesthetics of the guardrail; the reinforcing ribs fixed on the outer surface can enhance the structural strength of the template itself, effectively resist the lateral pressure of the concrete during the pouring process, prevent the template 100 from deforming, and ensure the forming accuracy of the guardrail.

[0084] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A template vibration device, characterized in that, include: The mounting assembly (1) includes a mounting box (11) and a rack (12). The rack (12) is arranged around the outer surface of the template (100) and its two ends are fixedly connected to the template (100). The mounting box (11) is fitted onto the rack (12) and has an extension hole on the side facing the template (100). The drive mechanism (2) is installed in the mounting box (11) and includes a stepper motor (21), a rotating wheel (22), a rotating rod (23) and an adapter (24). The stepper motor (21) is fixed in the mounting box (11). The rotating rod (23) is rotatably connected to the mounting box (11). The rotating wheel (22) is coaxially connected to the rotating rod (23) and meshes with the rack (12). The adapter (24) is vertically connected to the rotating rod (23). The vibration mechanism (3) is rotatably connected to the adapter (24). The stepper motor (21) can drive the rotating rod (23) or the rotating wheel (22) to rotate, so that the mounting box (11) can move along the rack (12). The vibration mechanism (3) can periodically extend and retract the extension hole. The outer wall of the mounting box (11) is provided with a sliding groove (110). The template vibration device also includes an adjustment mechanism (4). The adjustment mechanism (4) includes a slider (41), a resistor (42) and a controller. The resistor (42) is fixedly installed at the bottom of the sliding groove (110) along the length direction of the sliding groove (110). The slider (41) is slidably installed in the sliding groove (110) and makes sliding electrical contact with the resistor (42). The two ends of the resistor (42) are respectively connected to the positive and negative terminals of the power supply (5). The slider (41) is electrically connected to the analog input port of the controller to form a voltage divider detection circuit for collecting position voltage signals. The controller is electrically connected to the stepper motor (21) and is configured to: collect the voltage signal output by the voltage divider detection circuit and output a pulse frequency signal for adjusting the speed of the stepper motor (21) according to the voltage signal. The vibration mechanism (3) includes a connecting frame (31), a first elastic element (32), an impact element (33), a magnetic block (34), and an electromagnet (35). The connecting frame (31) is rotatably connected to the adapter (24) and has a movable groove (310) on one side facing the protrusion hole. The impact element (33) is slidably inserted through the protrusion hole and the movable groove (310) and connected to the bottom of the movable groove (310) through the first elastic element (32). The magnetic block (34) is disposed inside the impact element (33). The electromagnet (35) is disposed in the connecting frame (31) facing the magnetic block (34). The controller is electrically connected to the electromagnet (35) and is further configured to output a pulse width modulation signal for adjusting the magnetic force of the electromagnet (35) according to the voltage signal output by the voltage divider detection circuit.

2. The template vibration device according to claim 1, characterized in that, The vibration mechanism (3) further includes a support rod (36), which is fixedly disposed in the movable groove (310) and extends along the sliding direction of the impact member (33). The impact member (33) is sleeved on the support rod (36) and can slide along the support rod (36).

3. The template vibration device according to claim 1, characterized in that, The adjustment mechanism (4) further includes a second elastic element (43) and a limiting block (44). The sidewall of the slide groove (110) is provided with a plurality of limiting grooves (1101) spaced apart along the length direction. The sidewall of the slider (41) is provided with a groove. One end of the second elastic element (43) is connected to the bottom of the groove, and the other end is connected to the limiting block (44). When the slider (41) slides along the slide groove (110), the limiting block (44) can squeeze the second elastic element (43) back into the groove, or it can be inserted into the limiting groove (1101) under the elastic force of the second elastic element (43).

4. The template vibration device according to claim 1, characterized in that, The mounting box (11) is provided with pressure switches (6) on both sides opposite to each other along the moving direction. The two pressure switches (6) are electrically connected to the forward and reverse circuits of the stepper motor (21). When the mounting box (11) moves to the end of the rack (12), the pressure switch (6) on the corresponding side can be triggered by the pressure of the end of the rack (12) to switch the rotation direction of the stepper motor (21).

5. The template vibration device according to claim 1, characterized in that, The drive mechanism (2) further includes a drive gear (25), which is connected to the output end of the stepper motor (21) and meshes with the rotating wheel (22).

6. The template vibration device according to any one of claims 1-5, characterized in that, The installation assembly (1) further includes a guide (13), which is arranged around the outer surface of the template (100) and fixedly connected to the template (100) at both ends. The installation box (11) is fitted onto the guide (13) and can slide along the guide (13).

7. A cast-in-place guardrail forming equipment, characterized in that, It includes multiple templates (100) and multiple template vibration devices as described in any one of claims 1-6. The multiple templates (100) are detachably connected in sequence along the vertical direction to form a casting cavity. The multiple template vibration devices are correspondingly arranged on the outer surface of the multiple templates (100).

8. The cast-in-place guardrail forming equipment according to claim 7, characterized in that, The template (100) is made of transparent material.

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