A rear bottom plate assembly trolley

Abstract

This application relates to the field of tunnel engineering construction technology, and in particular to a rear bottom plate assembly trolley, including a trolley mechanism. The top of the trolley mechanism is equipped with a quick-release mechanism, and the top of the quick-release mechanism is equipped with a grouting mechanism. This utility model, through the configuration of a positioning platform, rollers, a first limiting block, a second limiting block, and a gantry frame and limiting rod of the quick-release mechanism, achieves rapid installation and stable positioning of the grouting mechanism via a locking relationship. This is achieved through the interlocking of the bottom locking block of the positioning platform with the top locking slot of the gantry frame, the rolling contact between the rollers and the second slide rail locking slot of the grouting mechanism between the limiting blocks, and the locking relationship of the limiting rod being driven by a servo motor to lift and insert into the locking slot. This allows the quick-release mechanism to quickly install and stably limit the grouting mechanism through locking positioning and roller guidance. Thus, this device achieves the effect of convenient disassembly and precise positioning of the grouting mechanism through a modular quick-release structure, significantly improving construction efficiency and reducing manual adjustment time.

Description

Technical Field

[0001] This application relates to the field of tunnel engineering construction technology, and in particular to a rear bottom plate assembly trolley. Background Technology

[0002] In the field of construction engineering, especially in the construction of underground structures, the efficiency and quality of the concrete pouring operation for the foundation slab directly affect the project progress and structural safety. Traditional pouring equipment often suffers from problems such as cumbersome installation and disassembly, low positioning accuracy, and inconvenience in movement. This not only consumes a lot of manpower and resources but also easily leads to uneven concrete pouring due to insufficient equipment stability, affecting structural strength. Existing pouring trolleys lack rapid assembly and precise adjustment functions in their structural design, making it difficult to meet the construction needs under complex working conditions.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: Existing devices mostly use bolt fixing or welding to connect the injection mechanism and the trolley, requiring repeated tightening / disassembly with tools, resulting in a preparation time of 2-3 hours per operation. Some devices lack rolling components such as rollers and use sliding friction guidance (such as straight plate limiters), resulting in high resistance during movement, requiring manual pushing and pulling to adjust the injection position, which can easily lead to top plate displacement or jamming. Summary of the Invention

[0004] In order to solve the problems mentioned in the background art, this application provides a rear base plate assembly trolley.

[0005] The present application provides a rear floor plate assembly trolley, which adopts the following technical solution: a rear floor plate assembly trolley, including a trolley mechanism, a quick-release mechanism is provided on the top of the trolley mechanism, and an injection mechanism is provided on the top of the quick-release mechanism;

[0006] The quick-release mechanism includes a positioning platform for supporting the injection mechanism, a second limiting block for restricting the movement direction of the injection mechanism, a first limiting block symmetrically arranged on the left and right sides of the second limiting block, and a roller for facilitating the movement of the arched injection top plate. A locking block is fixedly connected to the bottom of the positioning platform, and the locking block is inserted into the top of the gantry frame of the trolley mechanism. The roller is movably installed between the second limiting block and the first limiting block.

[0007] Optionally, the grouting mechanism includes an arched grouting top plate for grouting concrete, a second slide rail with a slot at the bottom, a first slide rail symmetrically arranged on the left and right sides of the second slide rail, and a support block fixedly installed between the second slide rail and the first slide rail.

[0008] Optionally, the trolley mechanism includes a wheel assembly for moving the equipment, a gantry frame for supporting the quick-release mechanism and the pouring mechanism, diagonal braces for supporting the side plates of the arched pouring top plate, and a limiting rod for preventing the arched pouring top plate from disengaging from the quick-release mechanism. The limiting rod is fixedly installed at the output end of the servo motor inside the gantry frame, the diagonal braces are movably installed on the left and right sides of the gantry frame, the bearing seats of the wheel assembly are fixedly installed at the bottom of the gantry frame, and the limiting rod prevents the pouring mechanism from disengaging. The lifting and locking are controlled by the servo motor.

[0009] Optionally, the second limiting block is fixedly installed at the top center of the positioning platform, the first limiting block is symmetrically fixedly installed on both sides of the top of the positioning platform, and the axial direction of the roller is parallel to the moving direction of the second slide rail.

[0010] Optionally, the top of the limiting rod extends directly below the slot of the second slide rail and is driven by a servo motor to achieve vertical lifting and lowering movement.

[0011] Optionally, the two ends of the roller are rotatably fitted into the side wall grooves of the first and second limiting blocks via bearings, and the outer circumferential surface of the roller makes rolling contact with the groove of the second slide rail, thereby reducing friction and facilitating quick installation and disassembly of the injection mechanism.

[0012] Optionally, the bottom sides of the arched grouting top plate are provided with sliders that match the first slide rail, and the sliders slide along the extension direction of the first slide rail, and the top surface of the support block is rigidly connected to the bottom surface of the arched grouting top plate.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model, through the setting of a positioning platform, rollers, first limiting blocks, second limiting blocks, and gantry frame and limiting rods of the quick-release mechanism, achieves the following: the positioning platform bottom block engages with the gantry top slot; the rollers roll between the limiting blocks and the second slide rail slot of the grouting mechanism; and the limiting rods are locked by being driven by a servo motor to lift and insert into the slot. This allows the quick-release mechanism to quickly install and stably limit the grouting mechanism through snap-fit ​​positioning and roller guidance. Thus, this device achieves the effect of convenient disassembly and precise positioning of the grouting mechanism through a modular quick-release structure, significantly improving construction efficiency and reducing manual adjustment time.

[0015] 2. This utility model, by setting up an arched pouring top plate, a first slide rail, a second slide rail, a support block, and rollers and limiting blocks for the quick-release mechanism, achieves stable support and directional guidance for the concrete pouring process through the sliding cooperation between the bottom slider of the arched top plate and the first slide rail, the rolling contact between the second slide rail groove and the roller, and the rigid connection of the support block to the slide rail. This allows the pouring mechanism to achieve high-precision, low-deformation concrete pouring for the arched rear bottom plate through the arc-shaped adaptation design and rigid support structure, ensuring the dimensional accuracy and construction quality of the engineering structure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0018] Figure 3 This is a partial structural diagram of the quick-release mechanism in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the main structure of the injection mechanism in the embodiments of this application;

[0020] Figure 5 This is a schematic diagram of the partial structure installation of the quick-release mechanism in an embodiment of this application;

[0021] Reference numerals: 1. Trolley mechanism; 101. Wheel assembly; 102. Gantry frame; 103. Diagonal brace; 104. Limiting rod; 2. Quick release mechanism; 201. Positioning platform; 202. First limiting block; 203. Second limiting block; 204. Roller; 3. Pouring mechanism; 301. Arched pouring top plate; 302. First slide rail; 303. Second slide rail; 304. Support block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a rear base plate assembly trolley.

[0025] like Figures 1 to 4As shown, a rear base plate assembly trolley includes a trolley mechanism 1. The top of the trolley mechanism 1 is provided with a quick-release mechanism 2. The quick-release mechanism 2 includes a positioning platform 201 for supporting an injection mechanism 3, a second limiting block 203 for restricting the movement direction of the injection mechanism 3, a first limiting block 202 symmetrically arranged on the left and right sides of the second limiting block 203, and a roller 204 for facilitating the movement of the arched injection top plate 301. A locking block is fixedly connected to the bottom of the positioning platform 201. The locking block is inserted into the top of the gantry 102 of the trolley mechanism 1. The roller 204 is movably installed between the second limiting block 203 and the first limiting block 202. The positioning platform 201 achieves rapid mechanical docking with the gantry frame 102 through the locking block. It forms a three-dimensional constraint with the first limiting blocks 202 on both sides and the second limiting block 203 in the middle, so that the injection mechanism 3 maintains directional accuracy during the sliding process. The rolling contact design between the roller 204 and the slot of the second slide rail 303 can reduce the moving resistance and adapt to dynamic load changes.

[0026] like Figure 3 and Figure 4 As shown, the second limiting block 203 is fixedly installed at the top center of the positioning platform 201, and the first limiting block 202 is symmetrically fixedly installed on both sides of the top of the positioning platform 201. The axis of the roller 204 is parallel to the moving direction of the second slide rail 303. The two ends of the roller 204 are rotatably embedded in the side wall grooves of the first limiting block 202 and the second limiting block 203 through bearings, and the outer circumferential surface of the roller 204 makes rolling contact with the groove of the second slide rail 303. The two ends of the roller 204 are rotatably connected to the side wall grooves of the first limiting block 202 and the second limiting block 203 through high-precision bearings. Its axis is strictly parallel to the moving direction of the second slide rail 303, ensuring that the second slide rail 303 always maintains a linear trajectory during reciprocating motion. The low friction characteristics of the bearings effectively reduce mechanical wear and extend the service life of the components.

[0027] like Figures 1 to 5 As shown, the quick-release mechanism 2 has a grouting mechanism 3 on its top. The grouting mechanism 3 includes an arched grouting top plate 301 for grouting concrete, a second slide rail 303 with a groove at the bottom, first slide rails 302 symmetrically arranged on the left and right sides of the second slide rail 303, and a support block 304 fixedly installed between the second slide rail 303 and the first slide rail 302. Sliding blocks matching the first slide rail 302 are provided on both sides of the bottom of the arched grouting top plate 301, and the sliding blocks slide along the extension direction of the first slide rail 302. The top surface of the support block 304 is rigidly connected to the bottom surface of the arched grouting top plate 301. The arched grouting top plate 301 forms a sliding pair with the first slide rail 302 through the bottom sliding block. The support block 304 uses a rigid connection structure to evenly transfer the load of the top plate to the slide rail system. The groove of the second slide rail 303 cooperates with the roller 204 to achieve horizontal guidance. The overall design takes into account both structural stability and flexible adjustment of the grouting position.

[0028] like Figure 1 and Figure 2 As shown, the trolley mechanism 1 includes a wheel assembly 101 for moving the equipment, a gantry frame 102 for supporting the quick-release mechanism 2 and the pouring mechanism 3, a diagonal brace 103 for supporting the side plate of the arched pouring top plate 301, and a limiting rod 104 for preventing the arched pouring top plate 301 from disengaging from the quick-release mechanism 2. The limiting rod 104 is fixedly installed at the output end of the servo motor inside the gantry frame 102. The diagonal brace 103 is movably installed on the left and right sides of the gantry frame 102. The bearing seat of the wheel assembly 101 is fixedly installed at the bottom of the gantry frame 102. The top end of the limiting rod 104 extends to the groove of the second slide rail 303 and is driven by the servo motor to achieve vertical lifting and lowering movement. The wheel assembly 101 uses a heavy-duty bearing seat to support the overall weight of the gantry frame 102. The diagonal brace 103 is connected to the gantry frame 102 through a movable joint. The support angle can be adaptively adjusted according to the height of the side plate of the arched pouring top plate 301. The limit rod 104 is driven by a servo motor to achieve precise vertical lifting control and accurately lock the position of the second slide rail 303 during pouring to prevent accidental detachment. Example

[0029] Bridge rear slab concrete pouring construction

[0030] In the concrete pouring construction of the bridge's rear abutment slab, the operation of the rear abutment slab assembly trolley is as follows: Before construction, the operator first checks whether all components of the trolley mechanism 1 are intact. It is confirmed that the bearing seats of the wheel assembly 101 are firmly fixed, the wheels rotate flexibly, the gantry 102 is free from deformation, and the diagonal brace 103 and limit rod 104 are in normal condition. The bottom locking block of the positioning platform 201, the first limit block 202, the second limit block 203, and the roller 204 of the quick-release mechanism 2 are all undamaged. The arched pouring top plate 301, the first slide rail 302, the second slide rail 303, and the support block 304 of the pouring mechanism 3 also meet the usage requirements.

[0031] When grouting operations are required, the operator activates the drive unit, using the wheel assembly 101 to move the trolley mechanism 1 to the designated construction position on the rear bottom plate of the bridge. Since the bearing seats of the wheel assembly 101 are fixedly installed at the bottom of the gantry frame 102, they can stably support the movement of the trolley. Once in position, the operator manually operates the diagonal brace 103, extending it from the left and right sides of the gantry frame 102, so that the lower end of the diagonal brace 103 rests on the ground, forming a stable triangular support structure, thereby fixing the trolley mechanism 1 and preventing it from moving during the grouting process.

[0032] Next, install the quick-release mechanism 2. Accurately insert the locking block at the bottom of the positioning platform 201 into the top of the gantry frame 102 of the trolley mechanism 1, ensuring a tight fit between the locking block and the slot of the gantry frame 102, so that the quick-release mechanism 2 is securely installed on the trolley mechanism 1. At this time, the roller 204 is movably installed between the second limiting block 203 and the first limiting block 202, and the axial direction of the roller 204 is parallel to the moving direction of the second slide rail 303 in the subsequent injection mechanism 3, providing guidance and support for the movement of the injection mechanism 3.

[0033] Then, the injection mechanism 3 is installed and placed on the positioning platform 201 of the quick-release mechanism 2. The groove at the bottom of the second slide rail 303 of the injection mechanism 3 contacts the outer circumferential surface of the roller 204 of the quick-release mechanism 2. Since the two ends of the roller 204 are rotatably fitted into the side wall grooves of the first limiting block 202 and the second limiting block 203 via bearings, when the injection mechanism 3 is pushed, the roller 204 will roll within the groove, facilitating the movement of the arched injection top plate 301 along the axial direction of the roller 204. Simultaneously, the first limiting block 202 symmetrically arranged on the left and right sides of the second limiting block 203 and the second limiting block 203 located at the top center of the positioning platform 201 restrict the direction of movement of the injection mechanism 3, preventing it from deviating.

[0034] After installation, the operator starts the servo motor inside the trolley mechanism 1 to drive the limit rod 104 to rise. The limit rod 104 is fixedly installed at the output end of the servo motor inside the gantry frame 102, and its top gradually extends to the slot directly below the second slide rail 303. When the limit rod 104 rises to the appropriate position, it can prevent the arched pouring top plate 301 from disengaging from the quick-release mechanism 2, ensuring the safety of the pouring process.

[0035] Subsequently, the operators adjusted the position of the arched pouring top plate 301 according to the pouring requirements of the bridge's rear bottom slab. Since the bottom sides of the arched pouring top plate 301 are equipped with sliders that match the first slide rail 302, the operators can push the arched pouring top plate 301 to move the sliders along the extension direction of the first slide rail 302, thereby moving the arched pouring top plate 301 to the position where concrete needs to be poured. The support block 304 is fixedly installed between the second slide rail 303 and the first slide rail 302, and its top surface is rigidly connected to the bottom surface of the arched pouring top plate 301, providing stable support for the arched pouring top plate 301 and ensuring that it does not shake during the pouring process.

[0036] Finally, the operator performs concrete pouring through the arched pouring top plate 301. Concrete is injected from the pouring port of the arched pouring top plate 301 and evenly distributed along its arched structure to the construction area of ​​the bridge's rear bottom plate, completing the concrete pouring work. After pouring, the operator first starts the servo motor to lower the limit rod 104, disengaging it from the slot of the second slide rail 303. Then, the pouring mechanism 3 is removed from the quick-release mechanism 2, the quick-release mechanism 2 is dismantled, and finally the diagonal brace 103 is retracted. The trolley mechanism 1 is then moved to the next construction position via the wheel assembly 101.

[0037] The implementation principle of a rear bottom plate assembly trolley in this application embodiment is as follows:

[0038] First, the trolley mechanism 1 is driven to the construction area by the wheel assembly 101 at the bottom. The rigid connection between the bearing seat and the gantry 102 enables the overall movement. After reaching the designated position, the wheel assembly 101 is braked and fixed. The slot at the top of the gantry 102 is inserted into the bottom block of the positioning platform 201 of the quick-release mechanism 2 to form a stable bearing base. At the same time, the diagonal braces 103 on both sides of the gantry 102 unfold and abut against the side plate of the grouting mechanism 3. The triangular support principle enhances the trolley's anti-overturning ability and ensures that the structure does not shake during subsequent operations.

[0039] Next, the second slide rail 303 slot of the injection mechanism 3 is aligned with the roller 204 of the quick-release mechanism 2, and pushed in along the guide channel formed by the symmetrically distributed first limiting block 202 and the central second limiting block 203. The two ends of the roller 204 are embedded in the groove of the limiting block through bearings, and its outer circumference is in rolling contact with the second slide rail 303 slot, which greatly reduces the sliding resistance, so that the injection mechanism 3 can quickly slide into the positioning platform 201. The limiting blocks 202 / 203 restrict the lateral movement of the injection mechanism 3, ensuring that it is accurately aligned along the axis of the roller 204, and completing the quick installation.

[0040] Next, the servo motor inside the gantry 102 drives the limit rod 104 to rise vertically, and its top end extends into the bottom slot of the second slide rail 303 and locks in place, forming a mechanical lock to prevent the mechanism from disengaging due to concrete pressure during pouring. At the same time, the bottom slider of the arched pouring top plate 301 slides laterally along the first slide rail 302, and its position can be finely adjusted according to the width of the rear bottom plate. The support block 304 rigidly connects the slide rail 302 / 303 and the arched pouring top plate 301 to ensure the rigidity of the overall structure after the position is adjusted, providing conditions for precise pouring.

[0041] Next, concrete is injected into the arc-shaped cavity of the arched grouting top plate 301 using a pumping device. The concrete flows evenly along the curved surface of the top plate and fills the construction area of ​​the bottom plate. At this time, the positioning platform 201 of the quick-release mechanism 2 and the gantry frame 102 of the trolley mechanism 1 jointly bear the vertical load. The rolling contact design of the roller 204 and the slide rails 302 / 303 reduces rigid friction and avoids deformation of the mechanism during the grouting process. The diagonal brace 103 continuously supports the side plate of the arched grouting top plate 301, offsets the lateral pressure of the concrete, and ensures the dimensional accuracy and surface flatness of the grouting bottom plate.

[0042] Finally, after the grouting is completed and the concrete has initially set, the servo motor controls the limit rod 104 to descend and disengage from the slot, releasing the lock on the grouting mechanism 3. The grouting mechanism 3 slides in the opposite direction along the guide direction of the roller 204, separating it from the quick-release mechanism 2. The bottom locking block of the positioning platform 201 is pulled out from the top slot of the gantry 102, achieving quick disassembly. The trolley mechanism 1 moves to the next construction section through the wheel assembly 101, repeating the "positioning-installation-locking-grouting-disassembly" process. After completion, the segmented continuous construction of the base plate is completed, significantly improving the work efficiency.

Claims

1. A rear base plate assembly trolley, comprising a trolley mechanism (1), characterized in that: The top of the trolley mechanism (1) is provided with a quick-release mechanism (2), and the top of the quick-release mechanism (2) is provided with an injection mechanism (3). The quick-release mechanism (2) includes a positioning platform (201) for supporting the injection mechanism (3), a second limiting block (203) for restricting the movement direction of the injection mechanism (3), a first limiting block (202) symmetrically arranged on the left and right sides of the second limiting block (203), and a roller (204) for facilitating the movement of the arched injection top plate (301). The bottom of the positioning platform (201) is fixedly connected to a locking block, which is inserted into the top of the gantry (102) of the trolley mechanism (1). The roller (204) is movably installed between the second limiting block (203) and the first limiting block (202).

2. The rear bottom plate assembly trolley according to claim 1, characterized in that: The grouting mechanism (3) includes an arched grouting top plate (301) for grouting concrete, a second slide rail (303) with a slot at the bottom, a first slide rail (302) symmetrically arranged on the left and right sides of the second slide rail (303), and a support block (304) fixedly installed between the second slide rail (303) and the first slide rail (302).

3. The rear bottom plate assembly trolley according to claim 1, characterized in that: The trolley mechanism (1) includes a wheel assembly (101) for moving the equipment, a gantry frame (102) for supporting the quick-release mechanism (2) and the injection mechanism (3), a diagonal brace (103) for supporting the side plate of the arched injection top plate (301), and a limiting rod (104) for preventing the arched injection top plate (301) from disengaging from the quick-release mechanism (2). The limiting rod (104) is fixedly installed at the output end of the servo motor inside the gantry frame (102). The diagonal brace (103) is movably installed on the left and right sides of the gantry frame (102). The bearing seat of the wheel assembly (101) is fixedly installed at the bottom of the gantry frame (102).

4. The rear bottom plate assembly trolley according to claim 1, characterized in that: The second limiting block (203) is fixedly installed at the top center of the positioning platform (201), the first limiting block (202) is symmetrically fixedly installed on both sides of the top of the positioning platform (201), and the axial direction of the roller (204) is parallel to the moving direction of the second slide rail (303).

5. The rear bottom plate assembly trolley according to claim 3, characterized in that: The top of the limiting rod (104) extends directly below the slot of the second slide rail (303) and is driven by a servo motor to achieve vertical lifting and lowering motion.

6. The rear bottom plate assembly trolley according to claim 1, characterized in that: The two ends of the roller (204) are rotatably fitted into the side wall grooves of the first limiting block (202) and the second limiting block (203) via bearings, and the outer peripheral surface of the roller (204) is in rolling contact with the groove of the second slide rail (303).

7. The rear bottom plate assembly trolley according to claim 2, characterized in that: The bottom sides of the arched grouting top plate (301) are provided with sliders that match the first slide rail (302), and the sliders slide along the extension direction of the first slide rail (302), and the top surface of the support block (304) is rigidly connected to the bottom surface of the arched grouting top plate (301).

Images