A portable concrete backfilling device

Abstract

The utility model relates to concrete backfilling technical field, concretely relates to a portable concrete backfilling device, including moving dolly and crushing component, crushing component includes crushing box, pivot, connecting shaft, hanger plate, mounting seat, driving piece, filter screen, discharge component and positioning component, through the setting of moving dolly, the portability and the mobility of whole device have been improved, reduced backfilling operation difficulty, also reduced the use of large -scale machinery, through setting up the crushing knife rest of rotation in crushing box simultaneously, can effectively carry out secondary crushing to the backfilling concrete, thereby avoid the situation that the flexible material guide pipe appears the blockage because of the too big particle in concrete, and further can solve the problem that the corresponding break mechanism is not set when the device of the prior art guides the concrete into the material guide pipe inside the foundation pit, leads to the problem that the material guide pipe is easy to cause the blockage if there is larger particle in concrete.

Description

Technical Field

[0001] This utility model relates to the field of concrete backfilling technology, and in particular to a portable concrete backfilling device. Background Technology

[0002] The foundation pit is a pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data and the conditions of nearby buildings, and waterproofing and drainage work should be done. The existing foundation pit backfilling trucks are not convenient for filling the foundation pit layer by layer, nor can they smooth and break up the overflowing material, resulting in uneven filling and inconvenience for use.

[0003] A search revealed that prior art CN216041215U discloses a pit backfilling vehicle, including a truck body. Inclined plates are provided on both sides of the interior of the truck body, a discharge hopper is provided at the bottom of the truck body, a moving trough is provided on one side of the discharge hopper, a sealing plate is provided inside the moving trough, mounting rods are provided on both sides of the rear end of the truck body, a roller is provided between the mounting rods, and a soil-crushing rod is provided at the upper end of the roller. This pit backfilling vehicle, by incorporating inclined plates, a discharge hopper, a moving trough, and a sealing plate, facilitates the movement of the truck body for backfilling and allows for adjustments to the discharge volume. This facilitates layered backfilling of the pit, improving the quality of the backfilling. The mounting rods, roller, and soil-crushing rod facilitate smoothing and breaking up the discharged material, resulting in a more uniform and level backfill, thus enhancing the practicality of the pit backfilling vehicle.

[0004] However, the above-mentioned device has the following problems when in use: when the device introduces concrete into the material guide pipe inside the foundation pit, it does not have a corresponding crushing mechanism, which can easily cause blockage of the material guide pipe if there are large particles in the concrete. Utility Model Content

[0005] The purpose of this utility model is to provide a portable concrete backfilling device, which aims to solve the problem that existing devices do not have a corresponding crushing mechanism when introducing concrete into the foundation pit through the guide pipe, which can easily cause blockage of the guide pipe if there are large particles in the concrete.

[0006] To achieve the above objectives, this utility model provides a portable concrete backfilling device, including a mobile trolley and a crushing component;

[0007] The crushing assembly includes a crushing box, a rotating shaft, a connecting shaft, a hanging plate, a mounting base, a drive component, a filter screen, a discharge component, and a positioning component. The crushing box is installed on the top of the mobile trolley and has an inclined circular conveying chamber inside. The rotating shaft is rotatably installed on the side wall of the crushing box and located at the highest point of the circular conveying chamber. The connecting shaft is fixedly installed on one side of the rotating shaft, and its end away from the rotating shaft is rotatably supported by the hanging plate. The hanging plate is installed on the crushing box. Spiral blades and multiple crushing cutter holders are welded onto the connecting shaft. The mounting base is detachably connected to the crushing box. The drive component is located on the mounting base, and its output shaft is connected to the rotating shaft through the connecting component. The filter screen is installed on the discharge side of the crushing box, the discharge component is located to the right of the filter screen, and the positioning component is located on the mobile trolley.

[0008] The discharge component includes a discharge box and a discharge pipe. The discharge box is detachably connected to the crushing box and is located to the right of the filter screen. The discharge pipe is integrally formed with the discharge box and a flexible guide pipe is connected to the outlet.

[0009] The positioning component includes a threaded seat and a mating component. Multiple threaded seats are mounted on the frame of the mobile trolley and arranged symmetrically in pairs. The mating component is located on one side of the threaded seat.

[0010] The mating components include a screw and an abutment plate. The screw is threadedly connected to the threaded seat and passes through the threaded seat and the frame of the moving trolley, respectively. The abutment plate is fixed to the bottom of the screw by multiple countersunk bolts.

[0011] The portable concrete backfilling device further includes an isolation component, which includes a protective cover and ear plates. The ear plates are symmetrically welded onto the protective cover and are disposed on the outside of the drive unit. The ear plates are detachably connected to the crushing box.

[0012] This utility model discloses a portable concrete backfilling device. By incorporating a mobile trolley, the device's portability and mobility are improved, reducing the difficulty of backfilling operations and minimizing the use of large machinery. Furthermore, the rotating crushing blades within the crushing chamber effectively perform secondary crushing of the backfilled concrete, preventing large particles from clogging the flexible guide pipe. This addresses the problem in existing devices where the guide pipe for concrete entering the pit lacks a corresponding crushing mechanism, leading to blockages caused by large particles in the concrete. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the portable concrete backfilling device according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the connecting shaft according to the first embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the connecting cylinder of the connecting component according to the first embodiment of this utility model.

[0017] Figure 4 This is a bottom view of the abutment plate according to the first embodiment of this utility model.

[0018] Figure 5 This is a schematic diagram of the overall structure of the portable concrete backfilling device according to the second embodiment of this utility model.

[0019] In the diagram: 101-Mobile trolley, 102-Crushing box, 103-Rotating shaft, 104-Connecting shaft, 105-Hanging plate, 106-Mounting base, 107-Drive component, 108-Filter screen, 109-Helical blade, 110-Crushing cutter holder, 111-Discharge box, 112-Discharge pipe, 113-Threaded seat, 114-Screw, 115-Abutting plate, 116-Connecting assembly, 201-Protective cover, 202-Ear plate. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0021] Example 1:

[0022] like Figures 1 to 4 As shown, where Figure 1 This is a schematic diagram of the overall structure of the portable concrete backfilling device. Figure 2 This is a structural schematic diagram of connecting shaft 104. Figure 3 This is a structural schematic diagram of the connecting cylinder of connecting component 116. Figure 4This is a bottom view of the abutment plate 115. This utility model provides a portable concrete backfilling device: including a mobile trolley 101 and a crushing assembly. The crushing assembly includes a crushing box 102, a rotating shaft 103, a connecting shaft 104, a hanging plate 105, a mounting base 106, a driving component 107, a filter screen 108, a discharge component, and a positioning component. The discharge component includes a discharge box 111 and a discharge pipe 112. The positioning component includes a threaded seat 113 and a mating component. The mating component includes a screw 114 and an abutment plate 115. This solution solves the problem that existing devices, when guiding concrete into the foundation pit through the guide pipe, lack a corresponding crushing mechanism, leading to blockages in the guide pipe if large particles are present in the concrete. The aforementioned solution effectively performs secondary crushing of the backfilled concrete, thus preventing blockages in the flexible guide pipe caused by excessively large particles in the concrete.

[0023] In this embodiment, the mobile trolley 101 is used for convenient movement of the device.

[0024] The crushing box 102 is installed on the top of the mobile trolley 101, and its interior is an inclined circular conveying chamber. The rotating shaft 103 is rotatably installed on the side wall of the crushing box 102 and located at the highest point of the circular conveying chamber. The connecting shaft 104 is fixedly installed on one side of the rotating shaft 103, and its end away from the rotating shaft 103 is rotatably supported by the hanging plate 105. The hanging plate 105 is installed on the crushing box 102. The connecting shaft 104 is welded with a spiral blade 109 and multiple crushing blade holders 110. The mounting base 106 is detachably connected to the crushing box 102. The driving component 107 is installed on the mounting base 106, and the output shaft is connected to the rotating shaft 103 through the connecting assembly 116. The filter screen 108 is installed on the discharge side of the crushing box 102, and the discharge component is located on the right side of the filter screen 108. The positioning component is located on the mobile trolley 101. The crushing box 102 is fixed by bolts. The rotating shaft 103 is installed on the inner wall of the crushing box 102 via a rotating bearing with a dust cover. The bearing is located near the outer side, and a limit plate is provided inside the rotating shaft 103. The device is cleaned with clean water after each use to prevent material blockage and subsequent transmission. The installation method of the rotating shaft 103 can also adopt existing technology, such as the installation structure disclosed in CN220352924U. The connecting disc of the connecting shaft 104 is connected to the disc on the rotating shaft 103 by multiple bolts. Its stepped shaft is slidably fitted with the hanging plate 105, and the corresponding parts can be directly replaced after wear. The cavity on the crushing box 102 can ensure that the hanging plate 105 can move in an oblique direction, which facilitates its bottom installation on the connecting shaft 104. The spiral blade 109 is used for concrete conveying, and the blade of the crushing blade holder 110 performs secondary crushing on the concrete when it rotates. The drive component 107 is a motor or a reducer, and a connecting cylinder is concentrically welded on its output shaft. The connecting cylinder and the connecting component form a connecting assembly 116. The connecting component is a T-shaped screw and a nut. The nut is spot-welded to the screw end face on the side of the T-shaped screw away from the limiting disc.

[0025] Secondly, the discharge box 111 is detachably connected to the crushing box 102 and is located to the right of the filter screen 108; the discharge pipe 112 is integrally formed with the discharge box 111, and a flexible guide pipe is connected to the outlet. The discharge box 111 is provided with perforated fixing plates on both sides for easy fixing with bolts, and the discharge pipe 112 is provided at the lower outlet.

[0026] Then, multiple threaded seats 113 are installed on the frame of the mobile trolley 101, arranged symmetrically in pairs; the mating component is located on one side of the threaded seat 113. The threaded seats 113 are fixed by bolts, and through holes are provided on the frame of the mobile trolley 101 below the threaded seats 113 for mating.

[0027] Finally, the screw 114 is threadedly connected to the threaded seat 113 and passes through both the threaded seat 113 and the frame of the mobile trolley 101; the abutment plate 115 is fixed to the bottom of the screw 114 by multiple countersunk bolts. The abutment plate 115 is fixed to the bottom of the screw 114 by multiple bolts, and the side of the abutment plate 115 in contact with the ground is provided with an anti-slip structure to improve stability.

[0028] This invention effectively performs secondary crushing of backfilled concrete, preventing blockage of the flexible guide pipe caused by excessively large particles. The mobile trolley 101 enhances the portability and mobility of the entire device, reduces the difficulty of backfilling operations, and minimizes the use of large machinery. When moved to one side of the pit, the flexible guide pipe is inserted into the pit, and the drive unit 107 is activated. The drive unit 107 rotates the rotating shaft 103, causing the connecting shaft 104 to rotate. Finally, the spiral blades 109 and the crushing cutter holder 110 rotate, allowing raw materials to be fed into the pit. Inside the crushing box 102, a rotating crushing blade 110 is installed to effectively perform secondary crushing of the backfilled concrete. This prevents the concrete from containing excessively large particles, which could cause blockage of the flexible guide pipe. After crushing, the concrete is filtered out of larger particles by the filter screen 108 and then discharged. Finally, it is discharged through the discharge box 111 and the discharge pipe 112 into the flexible guide pipe and transported to the foundation pit. This solves the problem that existing devices do not have a corresponding crushing mechanism when guiding concrete into the foundation pit, which can easily cause blockage of the guide pipe if there are large particles in the concrete.

[0029] Example 2:

[0030] like Figure 5 As shown, where Figure 5 This is a schematic diagram of the overall structure of a portable concrete backfilling device. Based on the first embodiment, this utility model provides a portable concrete backfilling device, which also includes an isolation component, including a protective cover 201 and an ear plate 202.

[0031] The protective cover 201 has ear plates 202 symmetrically welded on it and disposed on the outside of the drive component 107; the ear plates 202 are detachably connected to the crushing box 102. The ear plates 202 are welded to both sides of the protective cover 201 and are fixed by bolts.

[0032] In this embodiment, after the protective cover 201 is installed, it isolates and protects the output shaft side of the drive component 107 from the transmission area of ​​the rotating shaft 103. The bottom is a ventilation opening to facilitate heat dissipation when the drive component 107 uses a motor or a reducer.

[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A portable concrete backfilling device, comprising a mobile trolley, characterized in that: It also includes crushing components; The crushing assembly includes a crushing box, a rotating shaft, a connecting shaft, a hanging plate, a mounting base, a drive component, a filter screen, a discharge component, and a positioning component. The crushing box is installed on the top of the mobile trolley and has an inclined circular conveying chamber inside. The rotating shaft is rotatably installed on the side wall of the crushing box and located at the highest point of the circular conveying chamber. The connecting shaft is fixedly installed on one side of the rotating shaft, and its end away from the rotating shaft is rotatably supported by the hanging plate. The hanging plate is installed on the crushing box. Spiral blades and multiple crushing cutter holders are welded onto the connecting shaft. The mounting base is detachably connected to the crushing box. The drive component is located on the mounting base, and its output shaft is connected to the rotating shaft through the connecting component. The filter screen is installed on the discharge side of the crushing box, the discharge component is located to the right of the filter screen, and the positioning component is located on the mobile trolley.

2. The portable concrete backfilling device as described in claim 1, characterized in that: The discharge component includes a discharge box and a discharge pipe. The discharge box is detachably connected to the crushing box and is located on the right side of the filter screen. The discharge pipe is integrally formed with the discharge box and a flexible guide pipe is connected to the outlet.

3. The portable concrete backfilling device as described in claim 1, characterized in that: The positioning component includes a threaded seat and a mating component. Multiple threaded seats are mounted on the frame of the mobile trolley and arranged symmetrically in pairs. The mating component is located on one side of the threaded seat.

4. The portable concrete backfilling device as described in claim 3, characterized in that: The mating components include a screw and an abutment plate. The screw is threadedly connected to the threaded seat and passes through the threaded seat and the frame of the moving trolley, respectively. The abutment plate is fixed to the bottom of the screw by a plurality of countersunk bolts.

5. The portable concrete backfill device of claim 1, wherein : The portable concrete backfilling device also includes an isolation component, which includes a protective cover and ear plates. The ear plates are symmetrically welded onto the protective cover and are disposed on the outside of the drive unit. The ear plates are detachably connected to the crushing box.

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