Basement concrete and mortar vertical conveying device

Abstract

The utility model relates to a basement concrete and mortar vertical conveying device which is mainly composed of a feeding bin, a cover plate, a material guiding steel pipe, a fixed base and a bottom receiving mechanism. The feeding bin is formed by modifying a waste metal oil drum, comprises an upper cylindrical section feeding port and a lower funnel structure flow guide port, vertically penetrates through a basement reserved hole and is connected with a material guide steel pipe in a welded mode, and a cover plate is arranged at the top of the feeding bin. The fixed base is formed by pouring fine aggregate concrete and adopts a circular truncated cone design; and the receiving mechanism at the bottom of the material guiding steel pipe adopts a trolley to transfer the conveyed mortar or concrete to a construction site.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for building construction, specifically relating to a vertical conveying device for basement concrete and mortar, which is suitable for single and multi-story basement construction scenarios. Background Technology

[0002] 1. Deficiencies in existing technology:

[0003] Commercial conveyor belt equipment has high procurement costs, and when used in construction scenarios after the basement is capped, a large material transfer opening needs to be left on the basement roof slab and transported with a tower crane, which increases the risk of falls from heights and safety protection costs, and occupies vertical transportation resources.

[0004] If traditional manual transportation is used, pushing materials underground via trolleys through the basement ramp is inefficient and poses a risk of mortar segregation.

[0005] 2. Technical contradictions: The construction of the secondary structure and plastering work in the basement requires frequent supply of concrete / mortar, which is transported from the ground to the interior of the basement. However, the existing technology has problems in balancing cost, efficiency and safety.

[0006] 3. Therefore, it is necessary to design a vertical conveying device for basement concrete and mortar to meet the unloading requirements of basement roof concrete and mortar, be firmly fixed and impact resistant, and have a bottom higher than the surrounding ground to prevent water accumulation and seepage. Utility Model Content

[0007] This utility model provides a vertical conveying device for basement concrete and mortar, the technical solution of which is as follows:

[0008] A vertical conveying device for basement concrete and mortar, characterized in that it comprises:

[0009] Feeding bin (1): It is modified from a galvanized iron sheet oil drum. The top is cut to form a circular feeding port. The opening edge of the feeding bin is provided with an inwardly bent reinforcing flange with a flange width ≥ 50mm and a bending angle of 180°. The bottom is cut and welded to form a 60° funnel structure.

[0010] 2) Guide steel pipe (2): a round steel pipe is used, the length is customized according to the height of the basement, the upper end is fixed to the lower opening of the funnel by welding, and the welded joint forms a continuous guide surface;

[0011] 3) Fixed base (3): The entire funnel structure guide opening is wrapped with fine stone concrete to form a concrete truncated cone with the same height as the funnel structure guide opening, i.e., the fixed base truncated cone. The fixed base is fixed on the basement roof.

[0012] 4) Bottom receiving mechanism (4): Located on the basement floor, it uses a manual or electric trolley to receive the material transmitted from the guide steel pipe. Waterproof tarpaulin (6) is laid on the ground of the receiving area to prevent spillage.

[0013] 5) Cover plate (5), made of waste wood templates and wood strips, including a round wood panel (5a) with a diameter slightly larger than the feed opening, and a wood strip (5b) nailed in the center on one side to increase the overall integrity.

[0014] The coaxiality tolerance between the lower center line of the funnel structure's guide port and the axis of the guide steel pipe is ≤2mm; the height of the fixed base truncated cone should be the same as the height of the funnel structure's guide port, and the angle between the generatrix of the fixed base truncated cone and the horizontal plane should be ≤45°; the lower end of the guide steel pipe is 1.2m from the basement floor.

[0015] Installation process (combined with) Figure 1 ):

[0016] ① Embedded stage: PVC sleeve (7) is embedded during the pouring of the top slab, ≥1000mm from the edge of the structure. Φ8@150mm ring reinforcement is added around the sleeve. If it is required for use in a multi-story basement, the PVC sleeve is embedded in the same position in the following floor slabs.

[0017] ② Installation and positioning: First, pass the guide steel pipe through the pre-embedded PVC pipe. The top of the guide steel pipe is about 1 meter above the basement roof. The processed feed hopper and guide pipe are temporarily fixed by scaffolding. After welding the two together, continue to lower them until the feed hopper is stably placed on the basement roof. Use a small amount of fine stone concrete to wrap the bottom for initial fixation. The verticality deviation of the feed hopper and guide steel pipe is ≤1%.

[0018] ③ Foundation construction and fixing: Pour a fine aggregate concrete frustum foundation along the funnel structure guide opening at the bottom of the feed silo. The top surface of the foundation should be level with the upper plane of the funnel structure, and the bottom of the foundation should rest on the basement roof slab. It can be put into use after 7 days of curing.

[0019] ④ Extension of guide steel pipe: If the guide steel pipe needs to be extended, the same method as when it was installed can be used. First, pass the first section of pipe through the pre-embedded PVC pipe and send it down to be temporarily fixed. Then, weld the second section of pipe on the top slab of the basement and extend it in sequence.

[0020] Feature expansion:

[0021] Temporarily suspended from use: Cover with a cover plate (5) to prevent debris and rainwater from falling in. The side of the cover plate with the wooden strip (5b) nailed down should face downwards to effectively prevent the cover plate from sliding off.

[0022] Permanent demolition: Chisel away the fine stone concrete fixing base (3), then remove the feed hopper (1) and the guide steel pipe (2) in sequence, and finally break the pre-embedded PVC sleeve (7) and roughen the reserved opening. After cleaning the opening, use the suspended formwork construction process to pour micro-expansion concrete one grade higher than the basement slab surface to fill the opening and cure it. Attached Figure Description

[0023] ‌ Figure 1 Elevation view of the structure of this utility model patent (labeled: 1-feeding bin, 1a-cylindrical section feed inlet, 1b-funnel structure guide inlet, 1c-reinforced flange, 2-guide steel pipe, 3-fixed base, 4-bottom receiving mechanism, 5-cover plate, 5a-circular wooden panel, 5b-wooden strip, 6-waterproof tarpaulin, 7-embedded PVC sleeve);

[0024] Figure 2 Top view of the structure of this utility model patent (labeled: 1-feed hopper, 1b-funnel structure guide port, 2-guide steel pipe, 3-fixed base). Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Reference Figure 1-2 This embodiment provides a vertical conveying device for basement concrete and mortar, which includes a feeding hopper (1), a guide steel pipe (2), a fixed base (3), a bottom receiving mechanism (4), a cover plate (5), a waterproof tarpaulin (6), and a pre-embedded PVC sleeve (7). The upper end of the guide steel pipe is connected to the feeding hopper, and the lower end is correspondingly set with the bottom receiving mechanism. The bottom receiving mechanism is located on the basement floor, and a waterproof tarpaulin (6) is laid at the lower end of the receiving mechanism to prevent material spillage and contamination of the ground. The feeding hopper (1) is fixed to the basement roof slab by a fine stone concrete truncated cone fixed base (3). The guide steel pipe (2) is vertically set at a reserved opening on the basement roof slab. A PVC sleeve (7) is pre-embedded in the reserved opening before pouring. The bottom receiving mechanism (4) is set inside the basement floor.

[0027] In this embodiment, the feed hopper (1) is self-made from a scrap standard galvanized iron sheet oil drum, and the bottom is fixed by a fine stone concrete truncated cone base (3), which is stable and has a certain impact resistance. When in use, the concrete or mortar mixing truck is parked next to the feed hopper (1), and the unloading port at the rear of the truck is aligned with the cylindrical section feed port (1a) to directly discharge the material. During the process, the discharge speed is controlled by the discharge valve of the concrete or mortar mixing truck. The bottom receiving mechanism (4) is a manual or electric trolley. At this point, the transportation of concrete or mortar to the basement is completed, and the material can be transferred to various construction operation surfaces by the trolley.

[0028] When this device is used for the construction of multi-story basements, PVC sleeves can be pre-embedded at the same position in each intermediate floor slab of the basement. The material guide steel pipe (2) is connected to the bottom basement by welding. Materials and construction are transferred from the bottom floor upwards in sequence. After the construction is completed, the pipes of the first floor are removed and the corresponding reserved openings are sealed.

[0029] The above measures enabled the vertical transport of concrete or mortar after the basement was capped, solving the problem of difficult transfer of concrete and mortar during the secondary structure and initial decoration stages of the basement.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A basement concrete and mortar vertical conveying device, characterized in that include: The feed hopper, converted from scrap metal oil drums, includes a cylindrical feed inlet and a bottom funnel-shaped flow outlet formed by cutting and welding. The material guiding steel pipe is a circular steel pipe. The upper end is welded to the guide port to form a continuous material guiding surface, and the lower end is 1.2m away from the basement floor. A fixed base is constructed by encasing the entire funnel structure's flow inlet with fine aggregate concrete to form a concrete frustum. The bottom receiving mechanism uses a manual or electric trolley to receive the material conveyed from the guide steel pipe; The cover plate is made from recycled wooden templates and wooden strips, including a circular wooden panel with a diameter slightly larger than the feed inlet, with wooden strips nailed to the center of one side.

2. The apparatus of claim 1, wherein: The opening edge of the feed hopper is provided with an inwardly bent reinforcing flange with a flange width of ≥50mm and a bending angle of 180°.

3. The apparatus of claim 1, wherein: The coaxiality tolerance between the lower center line of the funnel structure's guide port and the axis of the guide steel pipe is ≤2mm.

4. The apparatus of claim 1, wherein: The height of the fixed base should be the same as the height of the funnel structure's guide port, and the angle between the generatrix of the fixed base's frustum and the horizontal plane should be ≤45°.

5. The apparatus of claim 1, wherein: The fixed base is made of fine aggregate concrete and is designed as a frustum.

6. The apparatus of claim 1, wherein: The basement floor where the bottom receiving mechanism is located is covered with waterproof tarpaulin to prevent material spillage and contamination of the ground.

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