A building form plumb tool

By designing a tool for measuring the verticality of building formwork, and utilizing a plumb line and rack and pinion structure, the safety hazards and low efficiency of measuring the verticality of formwork in complex support systems were solved, enabling rapid and safe verticality judgment.

CN224471054UActive Publication Date: 2026-07-07CHINA CONSTR SEVENTH ENG DIVISION CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
Filing Date
2025-06-04
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In complex building formwork support systems, the existing plumb bob method for measuring formwork verticality presents safety hazards, high measurement difficulty, and low efficiency.

Method used

A tool for measuring the verticality of building formwork was designed, including a pole, a top plate, and a distance measuring component. The top plate is provided with a plumb line groove, and the pole is provided with a distance measuring component. Using the plumb line as a vertical reference, the horizontal distance from the formwork to the plumb line is measured using a gear and rack structure, so as to achieve a fast and safe verticality judgment.

Benefits of technology

It reduces the safety risks for surveyors, simplifies the measurement process, improves measurement efficiency, and enables rapid determination of the verticality of templates in complex support systems.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224471054U_ABST
    Figure CN224471054U_ABST
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Abstract

The utility model relates to a kind of building template perpendicularity measuring tools, including vertical pole, vertical pole is vertically arranged, the top of vertical pole is fixed top plate, and top plate is wound plumb line;The side of top plate away from vertical pole is set up up and down through slot, and the plummet of plumb line is dropped downward through slot;Distance measurement component is set up on vertical pole, and distance measurement component can measure the horizontal interval of template to plumb line at different height, and distance measurement component includes sleeve, sleeve is slidably sleeved on vertical pole, the top of sleeve is fixed gear, and the bottom of sleeve is set handle;Distance measurement component includes the limit rod extending along up and down direction, and the rack meshing transmission with fixed gear is set on limit rod, the rack extends along horizontal direction and is vertically arranged with vertical pole, length mark is engraved on the side of rack, and the limit structure that rack moves synchronously with gear is set between vertical pole and limit rod, and the same measurement value of different height is that template fixed perpendicularity is qualified.
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Description

Technical Field

[0001] This utility model relates to the field of building construction surveying, and in particular to a tool for measuring the verticality of building formwork. Background Technology

[0002] In building formwork engineering, the pass rate of verticality measurement directly affects the quality of the entire concrete structure. Therefore, verticality measurement and inspection are particularly important. Verticality inspection of formwork engineering is usually carried out by the plumb bob method. However, due to the formwork support system on site, especially in areas where a lot of formwork is used, and due to situations such as excessive height of the building or irregular structure, the formwork is usually fixed by a large number of steel frames for shaping and support, and then fixed with steel pipes and tie bolts. At this time, the measurement of formwork verticality is increased.

[0003] In the conventional plumb line method, after the plumb line is lowered, the interference from the formwork support system often means that surveyors can only measure data in easily accessible locations. In relatively inconvenient locations, personnel need to climb and move around inside the formwork support frame with measuring tools such as tape measures, which poses many safety hazards to personnel. In addition, due to space limitations, the measurement is too difficult and inconvenient to measure quickly, resulting in low measurement efficiency. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a tool for measuring the verticality of building formwork that can easily measure readings for complex formwork support systems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is a building formwork verticality measuring tool, including a pole, which is set vertically, and a top plate is fixed to the top of the pole, with a plumb line wound around the top plate;

[0006] The top plate has a slot that is open from top to bottom on the side away from the upright, and the plumb bob of the plumb line hangs down through the slot;

[0007] The upright is equipped with a distance measuring component, which can measure the horizontal distance from the template to the plumb line at different heights.

[0008] The beneficial effects of the above technical solution are as follows: The uprights are erected next to the formwork, and the plumb line at the groove of the top plate above the uprights hangs naturally. Relative to the formwork facade, the plumb line serves as an absolute vertical reference. By measuring the horizontal distance between the formwork and the plumb line at different heights, and comparing the measured values, the verticality of the formwork can be determined. If the measured values ​​at different heights are the same, it indicates that the formwork's verticality is qualified; if the measured values ​​at different heights are different, it indicates that the formwork's verticality is unqualified. Furthermore, the numerical values ​​can be used to determine how to adjust the formwork to make it vertical: positions with larger values ​​are adjusted towards the uprights, and positions with smaller values ​​are adjusted away from the uprights.

[0009] Furthermore, the distance measuring component includes a sleeve that is slidably fitted onto the upright. A gear is fixed at the top of the sleeve, and a handle is provided at the bottom of the sleeve. The distance measuring component includes a limiting rod extending in the vertical direction. A rack that meshes with the fixed gear is provided on the limiting rod. The rack extends in the horizontal direction and is perpendicular to the upright. A length marking is engraved on the side of the rack. A limiting structure is provided between the upright and the limiting rod to allow the rack to move synchronously with the gear.

[0010] Beneficial effects: The distance measuring component uses gear rotation to drive rack movement. When the rack contacts the template, the horizontal distance between the template and the plumb line can be read through the length mark on the side of the rack. By sliding the sleeve on the upright, the measuring height of the distance measuring component can be changed, thereby measuring the horizontal distance between the template and the plumb line at different height positions, so as to determine the verticality of the template.

[0011] Furthermore, the bottom of the upright is fixed to a base plate, and the bottom of the limiting rod is also fixed to the base plate.

[0012] Beneficial effect: Prevents the distance measuring component from sliding off the bottom of the pole.

[0013] Furthermore, the limiting structure includes a support plate, an annular groove is formed on the sleeve, the support plate is sleeved in the annular groove, a movable support is passed through the limiting rod, the movable support is fixedly connected to the support plate, and the rack is guided and slidably arranged in the horizontal direction relative to the movable support.

[0014] Beneficial effect: The support plate enables the gear and rack to be further connected into a whole on the basis of meshing, so that the gear and rack are always meshed when the distance measuring component slides to change height.

[0015] Furthermore, the movable support is fixed with guide blocks spaced vertically on its side, and guide grooves are symmetrically opened on the upper and lower sides of the rack. The rack is located between the two guide blocks, and the guide grooves of the rack are slidably adapted to the guide blocks.

[0016] Beneficial effect: The upper and lower guide blocks can hold the rack, thereby fixing the height position of the rack and allowing the rack to move only in the extension direction of the rack.

[0017] Furthermore, the groove on the side of the top plate away from the upright is V-shaped, and the plumb line falls downward through the angle of the V-shaped groove.

[0018] Beneficial effects: The V-groove provides a path for the plumb line to hang, and the two sharp ends of the V-groove make it easy to contact the template, making the upright more stable and facilitating measurement.

[0019] Furthermore, the top plate has symmetrical wavy grooves, and the plumb line is wound inside the wavy grooves.

[0020] Beneficial effect: It makes it easier for the plumb line to be wound around the top plate, preventing the plumb line from becoming loose and swaying. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model in use;

[0022] Figure 2 yes Figure 1 A magnified view of part A in the image;

[0023] Figure 3 yes Figure 2 A floor plan facing the template;

[0024] Figure 4 yes Figure 1 Top view;

[0025] In the diagram: 1-Upright pole, 2-Top plate, 3-Plumb line, 4-Formwork, 5-Sleeve, 6-Handle, 7-Gear, 8-Rack, 9-Base plate, 10-Limiting rod, 11-Moving support, 12-Panel, 41-Guide block, 201-Groove, 202-Wave groove, 401-Guide groove, 501-Annular groove. Detailed Implementation

[0026] The following describes in further detail a building formwork verticality measuring tool according to the present invention, with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1-4 As shown, this utility model discloses a building formwork verticality measuring tool, comprising a vertical pole 1, which is vertically arranged. A top plate 2 is fixed to the top of the pole 1. The top plate 2 has symmetrical wavy grooves 202, and a plumb line 3 is wound inside the wavy grooves 202. A vertically open slot 201 is opened on the side of the top plate 2 away from the pole 1. The slot 201 is V-shaped, through which the plumb of the plumb line 3 hangs downward. At the same time, the two sharp ends of the V-shaped slot 201 can stably contact the formwork 4. A distance measuring component is provided on the pole 1. The distance measuring component can measure the horizontal distance between the formwork 4 and the plumb line 3 at different heights. The plumb line 3 serves as an absolute vertical reference relative to the facade of the formwork 4. By comparing the horizontal distance between the formwork 4 and the plumb line 3 at different heights, the verticality of the formwork 4 can be determined. If the measured values ​​at different heights are the same, it indicates that the verticality of the formwork 4 is qualified.

[0028] Specifically, the distance measuring component includes a sleeve 5, which is slidably fitted onto the upright 1. The measuring height of the distance measuring component can be adjusted by sliding the sleeve 5 on the upright 1. A gear 7 is fixed at the top of the sleeve 5, and a handle 6 is provided at the bottom of the sleeve 5. The distance measuring component includes a limiting rod 10 extending in the vertical direction. A rack 8 that meshes with the fixed gear 7 is provided on the limiting rod 10. The rack 8 extends in the horizontal direction and is set perpendicular to the upright 1. The side of the rack 8 is engraved with a length mark. By rotating the handle 6, the sleeve 5 and the gear 7 rotate accordingly, thereby driving the rack 8 that meshes with the gear 7 to move. When the rack 8 touches the template 4, the horizontal distance between the template 4 and the plumb line 3 can be read by the length mark on the side of the rack 8. A base plate 9 is fixed at the bottom of the upright 1, and the bottom of the limiting rod 10 is also fixed on the base plate 9. The base plate 9 is used to slide and limit the distance measuring component to prevent the distance measuring component from detaching from the upright 1.

[0029] In this embodiment, a limiting structure is provided between the upright rod 1 and the limiting rod 10, which allows the rack 8 to move synchronously with the gear 7. The limiting structure includes a support plate 12, and a movable support 11 is provided on the limiting rod 10. Guide blocks 41 are fixed on the side of the movable support 11 at intervals. Guide grooves 401 are symmetrically opened on the upper and lower sides of the rack 8. The rack 8 is located between the two guide blocks 41, and the guide grooves 401 of the rack 8 are slidably adapted to the guide blocks 41. The rotation of the gear 7 drives the rack 8 to move along the extension direction of the rack 8. An annular groove 501 is opened on the sleeve 5, and the support plate 12 is sleeved in the annular groove 501. The movable support 11 is fixedly connected to the support plate 12, so that the gear 7 and the rack 8 are further connected into a whole on the basis of meshing, so that the gear 7 and the rack 8 are always meshed when the distance measuring component slides to change height.

[0030] In use, this utility model first places the plumb line 3 to an appropriate length according to the measurement height, then erects the upright 1 next to the template 4. The side of the top plate 2 away from the upright 1 touches the template 4 to make the upright 1 more stable. After the plumb line 3 stops swinging, rotate the handle 6 to rotate the gear 7 at the top of the sleeve 5. The rack 8 that meshes with the gear 7 moves accordingly. When the rack 8 is in contact with the template 4, observe the length mark on the side of the rack 8 and record the first measurement data. Slide the sleeve 5 up and down to adjust the measurement height. Record the horizontal distance from the template 4 to the plumb line 3 at different heights in the same way. Then compare the measurement data to determine whether the verticality of the template 4 is qualified.

[0031] The verticality measuring tool for building formwork of this utility model has the following advantages: First, for formwork support environments with relatively complex structures, the measuring tool can conveniently measure the verticality of the formwork 4 without requiring construction workers to climb and shuttle back and forth inside the support frame of the formwork 4, thus reducing the difficulty of measurement; Second, the distance measuring component can slide and adjust its height on the upright 1, and the rack 8 can directly read and calculate the distance after touching the formwork 4, saving measurement time and improving measurement efficiency; Third, the entire measuring tool is simple to manufacture, easy to transport, and can be used in different construction sites.

[0032] In the above embodiment, the groove shape on the side of the top plate away from the upright is V-shaped. In other embodiments, the groove shape may not be V-shaped; a groove for the plumb line to pass through can be opened on the side of the top plate away from the upright.

[0033] In the above embodiment, symmetrical wavy grooves are provided on the top plate. In other embodiments, wavy grooves may not be provided on the top plate, and the plumb line can be wound around the top plate.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tool for measuring the verticality of building formwork, characterized in that, Includes a pole (1), the pole (1) is set vertically, the top plate (2) is fixed to the top of the pole (1), and the plumb line (3) is wrapped around the top plate (2). The top plate (2) has a slot (201) that is open from top to bottom on the side away from the upright (1), and the hammer of the plumb line (3) hangs down through the slot (201). A distance measuring component is installed on the upright (1). The distance measuring component can measure the horizontal distance from the template (4) to the plumb line (3) at different heights. The distance measuring component includes a sleeve (5), which is slidably fitted on the upright (1). A gear (7) is fixed at the top of the sleeve (5), and a handle (6) is provided at the bottom of the sleeve (5). The distance measuring component includes a limiting rod (10) extending in the vertical direction. A rack (8) is provided on the limiting rod (10) to mesh with the fixed gear (7). The rack (8) extends in the horizontal direction and is perpendicular to the upright (1). The side of the rack (8) is marked with a length. A limiting structure is provided between the upright (1) and the limiting rod (10) to allow the rack (8) to move synchronously with the gear (7).

2. The tool for measuring the verticality of building formwork according to claim 1, characterized in that, The bottom of the upright (1) is fixed to the base plate (9), and the bottom of the limiting rod (10) is also fixed to the base plate (9).

3. The tool for measuring the verticality of building formwork according to claim 1, characterized in that, The limiting structure includes a support plate (12), an annular groove (501) is opened on the sleeve (5), the support plate (12) is sleeved in the annular groove (501), a movable support (11) is passed through the limiting rod (10), the movable support (11) is fixedly connected to the support plate (12), and the rack (8) is guided and slidably arranged relative to the movable support (11) in the horizontal direction.

4. The building formwork verticality measuring tool according to claim 3, characterized in that, The movable support (11) has guide blocks (41) fixed on its side at intervals. The rack (8) has guide grooves (401) symmetrically opened on its upper and lower sides. The rack (8) is located between the two guide blocks (41), and the guide grooves (401) of the rack (8) are slidably adapted to the guide blocks (41).

5. A tool for measuring the verticality of building formwork according to any one of claims 1-4, characterized in that, The top plate (2) has a V-shaped slot (201) on the side away from the pole (1), and the plumb line (3) hangs down through the angle of the V-shaped slot (201).

6. A tool for measuring the verticality of building formwork according to any one of claims 1-4, characterized in that, The top plate (2) has symmetrical wavy grooves (202) on its front and back, and the plumb line (3) is wound in the wavy grooves (202).