Construction hoist model
By setting laser pointers and measuring boards on the standard sections of the construction hoist model, the problem of slow assessment speed in existing technologies has been solved, enabling a fast and accurate assessment process.
Patent Information
- Application Number
- CN202422637152.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The assessment speed of existing construction hoist models is limited by complex measurements and calculations, resulting in low assessment efficiency when there are many students.
A laser pointer is set on each standard section, pointing vertically downwards. Combined with the cross coordinate system on the measuring board, the offset is marked by the laser points, simplifying the measurement and calculation process.
It improved the speed of student assessment, simplified the measurement of the straightness and verticality of the columns, reduced assessment time, and improved assessment efficiency.
Smart Images
Figure CN223552191U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of teaching models, and in particular relates to a construction hoist model. Background Technology
[0002] Construction hoists, also known as construction elevators, are widely used on construction sites. In schools, to help students understand the structure and working principles of construction hoists more vividly and intuitively, corresponding models are created. These models are scaled-down versions of existing construction hoists and include the same uprights, which are composed of multiple standard sections connected by bolts. One side of the upright has multiple adjustable wall-mounted brackets arranged from top to bottom, connecting the upright to the building's exterior wall. The wall-mounted brackets are fixed to the corresponding standard sections, with a bracket spaced every few standard sections. The upright also includes a hoisting cage, a drive mechanism for the cage, and a counterweight assembly. A protective railing surrounds the lower part of the upright. To ensure students can clearly see all the components in the model, the model's height is typically between 2 and 2.5 meters.
[0003] Because the model is made to scale according to a construction hoist, and construction hoists are assembled on-site with detachable components, the cage, drive mechanism, and counterweight components can be easily removed from the columns. The columns themselves are composed of multiple standard sections, which can also be easily disassembled into smaller sections. This provides students with convenient conditions for assembling and disassembling the model, allowing them to better master the skills during the process. The school will assess students based on the following key indicators: First, students must be able to successfully assemble and disassemble the model within a specified time and make it move according to the working principle of a construction hoist. Second, the quality of the assembly will be checked, primarily whether the assembled columns are straight and vertical. The first indicator is relatively easy to judge intuitively, but the second indicator requires teachers to use tools for complex measurements and calculations to quantify the offset of each standard section, which will then be used as the student's assessment score. Due to the limited number of models available to the school and the large number of students, multiple students need to take turns assessing each model. The complex measurements and calculations significantly slow down the assessment process. Utility Model Content
[0004] The purpose of this invention is to provide a construction hoist model. This invention has the advantage of improving the speed of student assessments.
[0005] The technical solution of this utility model is as follows: A construction hoist model, the model includes a column, which is composed of multiple standard sections connected by screws. A cage is slidably connected to the column, a drive mechanism for the cage is provided on the column, a counterweight assembly for the cage is provided on the column, and multiple wall-mounted brackets are provided on the column. A wall panel is provided on one side of the column to connect the wall-mounted brackets. The wall panel is vertically arranged. A base plate passing through the underside of the column is provided at the bottom of the wall panel. The base plate is horizontally arranged. A reference plate supporting the column is provided above the base plate. The reference plate is horizontally arranged. At least three screw rods passing through the reference plate are provided on the base plate. Nuts are provided on the screw rods located at the bottom of the reference plate. A downward-emitting laser pointer is provided on one side of the standard section. Multiple laser pointers form multiple light spots on the reference plate. The distance between the multiple laser pointers and the wall panel increases or decreases sequentially from top to bottom.
[0006] In the aforementioned construction hoist model, a cantilever is provided above the laser pointer. The inner end of the cantilever is fixed to the corresponding standard section, and the outer end of the cantilever is connected to the upper end of the laser pointer. The cantilever is connected to the laser pointer via a rope.
[0007] In the aforementioned construction hoist model, the lower end of the rope is provided with a counterweight in the shape of a rotating body. The connection between the rope and the counterweight is located on the axis of the counterweight, and the counterweight is coaxial with the laser pointer.
[0008] In the aforementioned construction hoist model, the lower end of the counterweight is provided with a mounting hole for a laser pointer, and at least two first rubber rings are embedded on the circumference of the mounting hole. The counterweight is elastically connected to the laser pointer through the first rubber rings.
[0009] The upper end of the counterweight is provided with a stepped blind hole that is larger at the top and smaller at the bottom. A second rubber ring is embedded on the circumference of the larger end of the stepped blind hole. A locking block for the rope is provided inside the larger end of the stepped blind hole. The locking block is elastically connected to the counterweight through the second rubber ring. The locking block includes two semi-circular clamping plates. A locking hole is formed between the two clamping plates to cooperate with the rope. The rope is clamped by the two plates.
[0010] In the aforementioned construction hoist model, the outer end of the cantilever is provided with a vertical through groove, and the outer end of the cantilever is provided with a pressure plate that presses the rope into the through groove. The pressure plate is connected to the cantilever screw.
[0011] In the aforementioned construction hoist model, an exhaust hole is provided between the blind hole of the step and the installation hole.
[0012] In the aforementioned construction hoist model, at least two right-angled triangular support plates are provided between the base plate and the wall plate.
[0013] In the aforementioned construction hoist model, the model also includes a measuring plate attached to one side of the column. The measuring plate is provided with multiple cross coordinate systems, which are distributed along the length of the measuring plate. The origins of the multiple cross coordinate systems are located at the light spots of multiple laser pointers, and the Y-axis of the multiple cross coordinate systems are collinear.
[0014] Compared with existing technologies, this invention incorporates a laser pointer on each standard section. Through structural improvements, it ensures the laser pointer emits light vertically downwards, reducing measurement errors. With the model assembled in a standard configuration, the positions of the light points (the origin of the coordinate system on the measurement board) are marked first. After the model is reassembled by the student, the offset of each standard section can be determined based on the offset of each light point, thereby increasing the speed of the assessment. Therefore, this invention has the advantage of improving the speed of student assessments. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of this utility model.
[0016] Figure 2 This is a top view of the present invention.
[0017] Figure 3 This is a schematic diagram showing the connection between the cantilever and the laser pointer.
[0018] Figure 4 This is a top view of the locking block.
[0019] Figure 5 This is a top view of the outer end of the cantilever.
[0020] Figure 6 This is a top view of the measuring plate.
[0021] The markings in the attached diagram are as follows: 1-Standard section, 2-Wall bracket, 3-Wall panel, 4-Base plate, 5-Base plate, 6-Screw, 7-Nut, 8-Laser pointer, 9-Cantilever, 10-Rope, 11-Counterweight, 12-Mounting hole, 13-First rubber ring, 14-Step blind hole, 15-Second rubber ring, 16-Locking block, 17-Through groove, 18-Pressure plate, 19-Vent hole, 20-Support plate, 21-Measuring plate, 22-Cross coordinate system. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0023] Example 1. A construction hoist model, such as Figure 1As shown, the model includes a column, which is composed of ten standard sections 1 connected by screws. A cage (omitted in the figure) is slidably connected to the column. The column is equipped with a drive mechanism for the cage (omitted in the figure), a counterweight assembly for the cage (omitted in the figure), and multiple wall-mounted brackets 2, which are screwed to the corresponding standard sections 1. Its features are as follows:
[0024] One side of the column is equipped with a wall panel 3, which is screwed to the wall-mounted bracket 2. The wall panel 3 is made of wood and is vertically installed. At the bottom of the wall panel 3, there is a base plate 4 that passes through the underside of the column. The base plate 4 is horizontally installed. Above the base plate 4, there is a reference plate 5 that supports the column. The reference plate 5 is horizontally installed. There are four screws 6 on the base plate 4 that pass through the reference plate 5. Nuts 7 are located at the bottom of the reference plate 5 on the screws 6. On the left side of the standard section 1, there is a downward-emitting laser pointer 8. The distance between the multiple laser pointers 8 and the wall panel 3 increases or decreases sequentially from top to bottom. The laser pointer 8 is cylindrical. The light emitted by the laser pointer 8 is located on the axis of the laser pointer 8. Multiple laser pointers 8 form multiple light spots on the reference plate 5. The multiple light spots are located on the same straight line perpendicular to the wall panel 3 and are equidistantly distributed on the straight line.
[0025] The laser pointer 8 is provided with a cantilever 9 above it. The inner end of the cantilever 9 is fixed to the corresponding standard section 1, and the outer end of the cantilever 9 is connected to the upper end of the laser pointer 8. The cantilever 9 is connected to the laser pointer 8 through a rope 10.
[0026] The lower end of the rope 10 is provided with a cylindrical counterweight 11, which is made of stainless steel. The connection between the rope 10 and the counterweight 11 is located on the axis of the counterweight 11, and the counterweight 11 is coaxial with the laser pointer 8.
[0027] The lower end of the counterweight 11 is provided with a mounting hole 12 for the laser pointer 8. Three first rubber rings 13 are embedded on the circumferential surface of the mounting hole 12. The counterweight 11 is elastically connected to the laser pointer 8 through the first rubber rings 13.
[0028] The upper end of the counterweight 11 is provided with a stepped blind hole 14, which is larger at the top and smaller at the bottom. The stepped blind hole 14 is coaxial with the counterweight 11. A second rubber ring 15 is embedded on the circumferential surface of the larger end of the stepped blind hole 14. A locking block 16 for the rope 10 is provided inside the larger end of the stepped blind hole 14. The locking block 16 is elastically connected to the counterweight 11 through the second rubber ring 15. A part of the second rubber ring 15 is embedded in the outer circumferential surface of the locking block 16. The locking block 16 includes two semi-circular clamping plates, and a locking hole is formed between the two clamping plates to cooperate with the rope 10. The elastic force of the second rubber ring 15 closes the two clamping plates, so that the rope 10 is clamped by the two clamping plates and keeps it coaxial with the counterweight 11. The second rubber ring 15 also establishes a connection between the counterweight and the locking block 16. The lower end of the rope 10 is located in the small hole of the stepped blind hole 14.
[0029] The outer end of the cantilever 9 is provided with a vertical through groove 17, and the outer end of the cantilever 9 is provided with a pressure plate 18 that presses the rope 10 into the through groove 17. The pressure plate 18 is connected to the cantilever 9 with screws.
[0030] The entire rope 10 is clamped and fixed without being bent, which ensures that the laser pointer 8 emits light vertically downwards.
[0031] A vent hole 19 is provided between the stepped blind hole 14 and the mounting hole 12. The vent hole 19 makes it easier to insert the laser pointer 8 into the mounting hole 12.
[0032] Two right-angled triangular support plates 20 are provided between the base plate 4 and the wall plate 3, and the support plates 20 are connected to the wall plate 3 with screws.
[0033] The model also includes a measuring plate 21 attached to the left side of the column. The length of the measuring plate 21 is the same as the width of the standard section 1 (i.e., the dimension of the standard section 1 in the direction perpendicular to the wall panel 3). The measuring plate 21 is provided with ten cross coordinate systems 22, which are distributed along the length of the measuring plate 21. The origins of the ten cross coordinate systems 22 are located at the light spots of the ten laser pointers 8, and the Y-axis of the ten cross coordinate systems 22 are collinear. The cross coordinate systems 22 are marked on the measuring plate 21 by etching, and there are scales on both the X and Y axes.
[0034] The model described above is in the optimal assembly state, that is, the column is vertical and has good straightness. At this time, the light spots formed by the light emitted by the ten laser pointers 8 on the measuring plate 21 are respectively at the origin of the ten cross coordinate systems 22.
[0035] Instructions for use: Before assessing students, remove the cage, drive motor, and counterweight assembly from the column. Disassemble the column into multiple independent standard sections 1. Remove the wall mount 2 from the standard section 1. Adjust the nuts 7 on the screw 6 so that the multiple nuts 7 are at different heights. The reference plate 5 is not horizontal. Remove the measuring plate 21. Reinstall the wall panel 3, changing its height and horizontal position to prevent students from referencing the screw holes left on the original wall panel 3 during installation. The model is now disassembled.
[0036] When assessing students, they adjust nut 7 to make the reference plate 5 horizontal, and assemble the standard sections 1 one by one on the reference plate 5 to form columns. When assembling the standard sections 1 of the corresponding height, they assemble the corresponding wall-mounted brackets 2 and connect them to the wall panel 3 until the column assembly is completed and the columns are fixed on the wall panel 3. Then, they assemble the cage, drive motor and counterweight components onto the columns; the model is reassembled.
[0037] After the students complete the assembly of the model, the teacher assesses and scores them. The measuring plate 21 is placed on the reference plate 5 and placed against the left side of the column. The two ends of the measuring plate 21 along the length are aligned with the two side walls of the parallel wall panel 3 of the column. The measuring plate 21 is located below the laser pointer 8. All laser pointers 8 are turned on until they stop. The coordinates of the laser pointer 8 spot on the corresponding cross coordinate system 22 are measured on the reference plate 5 and recorded. The offset of the corresponding standard section 1 can be obtained from the single coordinate. For example, if the coordinates of the standard section are (2, 4), it means that the standard section is offset 2mm to the right in the X direction and 4mm to the side of the wall panel 3.
[0038] Furthermore, the straightness and verticality of the column can be calculated based on all coordinates. This calculation can be completed during the next student assessment period without affecting the assessment process, thus providing a better basis for assessment scoring.
[0039] Example 2. Based on Example 1, the wall panel 3 is made of steel plate, and a magnet is installed between the wall bracket 2 and the wall panel 3. A bracket connected to the wall bracket 2 by screws is installed on the magnet.
[0040] Before assessing students, there is no need to disassemble and reassemble wall panel 3. Simply move the magnets along wall panel 3 to disrupt the system, which will cause students to lose their original reference points. Students will then need to move the magnets back to the correct positions to assemble the pillars better.
[0041] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments and simplifying the description, 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, and therefore should not be construed as a limitation.
Claims
1. A construction hoist model, the model comprising a column, the column being composed of multiple standard sections (1) connected by screws, a cage slidably connected to the column, a drive mechanism for the cage being provided on the column, a counterweight assembly for the cage being provided on the column, and multiple wall-mounted frames (2) being provided on the column, characterized in that: A wall panel (3) is provided on one side of the column to connect the wall-mounted bracket (2). The wall panel (3) is set vertically. A base plate (4) is provided at the bottom of the wall panel (3) that passes through the bottom side of the column. The base plate (4) is set horizontally. A reference plate (5) supporting the column is provided above the base plate (4). The reference plate (5) is set horizontally. At least three screws (6) passing through the reference plate (5) are provided on the base plate (4). Nuts (7) located at the bottom of the reference plate (5) are provided on the screws (6). A laser pointer (8) that emits light downwards is provided on one side of the standard section (1). The distance between the multiple laser pointers (8) from top to bottom and the wall panel (3) increases or decreases sequentially.
2. The construction hoist model according to claim 1, characterized in that: The laser pointer (8) is provided with a cantilever (9) above it. The inner end of the cantilever (9) is fixed to the corresponding standard section (1), and the outer end of the cantilever (9) is connected to the upper end of the laser pointer (8). The cantilever (9) is connected to the laser pointer (8) by a rope (10).
3. The construction hoist model according to claim 2, characterized in that: The lower end of the rope (10) is provided with a counterweight (11) in the shape of a rotating body. The connection between the rope (10) and the counterweight (11) is located on the axis of the counterweight (11). The counterweight (11) is coaxial with the laser pointer (8).
4. The construction hoist model according to claim 3, characterized in that: The lower end of the counterweight (11) is provided with a mounting hole (12) for a laser pointer (8). At least two first rubber rings (13) are embedded on the circumferential surface of the mounting hole (12). The counterweight (11) is elastically connected to the laser pointer (8) through the first rubber rings (13). The upper end of the counterweight (11) is provided with a stepped blind hole (14) that is larger at the top and smaller at the bottom. A second rubber ring (15) is embedded on the circumferential surface of the larger end of the stepped blind hole (14). A locking block (16) for the rope (10) is provided inside the larger end of the stepped blind hole (14). The locking block (16) is elastically connected to the counterweight (11) through the second rubber ring (15). The locking block (16) includes two semi-circular clamping plates. A locking hole is formed between the two clamping plates to cooperate with the rope (10). The rope (10) is clamped by the two plates.
5. The construction hoist model according to claim 4, characterized in that: The outer end of the cantilever (9) is provided with a vertical through groove (17), and the outer end of the cantilever (9) is provided with a pressure plate (18) to press the rope (10) into the through groove (17), and the pressure plate (18) is connected to the cantilever (9) by screws.
6. The construction hoist model according to claim 4, characterized in that: An exhaust hole (19) is provided between the step blind hole (14) and the mounting hole (12).
7. The construction hoist model according to claim 1, characterized in that: At least two right-angled triangular support plates (20) are provided between the base plate (4) and the wall plate (3).
8. The construction hoist model according to claim 1, characterized in that: The model also includes a measuring plate (21) attached to one side of the column. The measuring plate (21) is provided with multiple cross coordinate systems (22). The multiple cross coordinate systems (22) are distributed along the longitudinal direction of the measuring plate (21). The origins of the multiple cross coordinate systems (22) are located at the light spots of multiple laser pointers (8). The Y-axis of the multiple cross coordinate systems (22) are collinear.