Plate bottom height deviation measuring tool
By designing a tool for measuring the height deviation of the floor slab, and utilizing the design of liquid floats and circuit contacts, the problem of difficulty in efficiently and accurately checking the floor slab bottom elevation and flatness in traditional methods has been solved, achieving efficient and accurate inspection results.
Patent Information
- Application Number
- CN202520343289.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Traditional methods for checking floor slab elevation are affected by the internal support frame, making it difficult to efficiently and accurately check the floor slab elevation and flatness using existing technologies.
A tool for measuring the bottom height deviation of a slab was designed, including a measuring rod, a reference rod, a flexible hose, a contact head, and contact points. Through the design of a liquid float and circuit contacts, the tool enables accurate measurement of the bottom elevation and flatness of the floor slab.
It enables efficient and accurate inspection of the floor slab bottom elevation and flatness, improving construction quality and progress.
Smart Images
Figure CN223940275U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering construction, and in particular to a tool for measuring the height deviation of the bottom of a slab. Background Technology
[0002] Floor slabs are extremely common structural components in building construction. The elevation and flatness of the floor slab's bottom surface directly affect the clear height of the preceding floor. Therefore, before and during the pouring of the floor slab, it is necessary to check the elevation and flatness of the bottom surface of the floor slab formwork. After demolding, the flatness of the floor slab's bottom surface needs to be rechecked. The traditional inspection method uses a level and leveling rod. However, due to the influence of internal support structures, the level often encounters problems such as obstructed visibility and inconvenience in setting up the instrument. It is necessary to constantly adjust the position and height of the level, which adversely affects the inspection speed and accuracy. Utility Model Content
[0003] This utility model provides a tool for measuring the height deviation of the bottom plate, which can ensure the accuracy and speed of bottom plate height and flatness inspection.
[0004] This utility model provides a tool for measuring the height deviation of a plate bottom, including a measuring rod, a reference rod, a flexible tube, a contact, and a contact point. The measuring rod is a vertically arranged tubular structure. The reference rod is a vertically arranged tubular structure. The two ends of the flexible tube are connected to the lower ends of the measuring rod and the reference rod, respectively. The flexible tube, measuring rod, and reference rod are filled with liquid. The contact point floats on the liquid surface inside the measuring rod. The contact point is located on the measuring rod and is horizontally aligned with the upper ends of the measuring rod and the reference rod when they are on the same horizontal plane.
[0005] In some embodiments, the plate bottom height deviation measuring tool further includes a first float and a second float. The first float floats on the liquid surface within the measuring rod and has a contact point. The second float floats on the liquid surface within the reference rod and has the same weight as the first float.
[0006] In some embodiments, the plate bottom height deviation measuring tool further includes a power supply and an indicator light. The power supply is mounted on the measuring rod. The indicator light is mounted on the measuring rod and connected to the power supply to form a circuit. The contacts include conductive contacts. The contacts also include circuit contacts, which are connected to the circuit and connected in series with the indicator light. The circuit contacts make contact with the conductive contacts correspondingly positioned in the horizontal direction, thus completing the circuit.
[0007] In some embodiments, there are multiple indicator lights connected in parallel. There are also multiple circuit contacts arranged vertically, each connected in series with one of the indicator lights.
[0008] In some embodiments, the plate bottom height deviation measuring tool also includes a switch. The switch is mounted on the measuring rod, connected to a circuit, and connected in series with each indicator light.
[0009] In some embodiments, the circuit contacts are arranged at a predetermined distance along the vertical direction.
[0010] In some embodiments, the indicator lights are arranged vertically, and the arrangement order is the same as the arrangement order of the corresponding circuit contacts.
[0011] In some embodiments, the first float also has a base and a bump, the bump protruding from the upper part of the base and the conductive contact protruding from the side of the bump.
[0012] In some embodiments, the bottom plate height deviation measuring tool further includes a limiting protrusion. The limiting protrusion protrudes from the inner sidewall of the measuring rod and is positioned directly above and / or below each circuit contact. When the limiting protrusion abuts against the upper part of the conductive contact, the conductive contact contacts the uppermost circuit contact; when the limiting protrusion abuts against the lower part of the conductive contact, the conductive contact contacts the lowermost circuit contact.
[0013] In some embodiments, the upper part of the measuring rod has a first vent. The upper part of the reference rod has a second vent.
[0014] A plate bottom height deviation measuring tool according to an embodiment of this utility model includes a measuring rod, a reference rod, a flexible tube, a contact head, and a contact point. The measuring rod is a vertically arranged tubular structure. The reference rod is a vertically arranged tubular structure. Both ends of the flexible tube are connected to the lower ends of the measuring rod and the reference rod, respectively. The flexible tube, measuring rod, and reference rod are filled with liquid. The contact head floats on the liquid surface inside the measuring rod. The contact point is set on the measuring rod, and is horizontally aligned with the upper ends of the measuring rod and the upper ends of the reference rod when they are on the same horizontal plane. This tool measures the plate bottom height deviation by placing the measuring rod and reference rod against the bottom of the plate, obtaining the height deviation between the contact head and the contact point, and determining the height deviation between the bottom of the plate at the measuring rod and the bottom of the plate at the reference rod. This achieves plate bottom height deviation measurement while ensuring the accuracy and speed of bottom plate height and flatness checks, thereby guaranteeing construction quality and progress. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1This is a schematic diagram of the plate bottom height deviation measuring tool in an embodiment of this utility model;
[0017] Figure 2 This is a schematic diagram of the measuring rod in an embodiment of the present utility model;
[0018] Figure 3 This is a cross-sectional view of the measuring rod when the upper end of the measuring rod and the upper end of the reference rod are on the same horizontal plane in an embodiment of this utility model.
[0019] Figure 4 This is a cross-sectional view of the measuring rod in an embodiment of the present invention, where the upper end of the measuring rod is lower than the upper end of the reference rod.
[0020] Figure 5 This is a cross-sectional view of the measuring rod in an embodiment of the present invention, where the upper end of the measuring rod is higher than the upper end of the reference rod.
[0021] Figure 6 This is a schematic diagram of the reference rod in an embodiment of the present utility model;
[0022] Figure 7 This is a cross-sectional view of the reference rod in an embodiment of this utility model;
[0023] Figure 8 This is a schematic diagram of the measuring rod and reference rod of the plate bottom height deviation measuring tool in use according to an embodiment of this utility model;
[0024] Figure 9 for Figure 8 Enlarged view of point A in the middle;
[0025] Figure 10 This is a schematic diagram of the circuit connection between the circuit contacts and the conductive contacts in one embodiment of the present invention;
[0026] Figure 11 This is a schematic diagram of the circuit connection between the circuit contacts and the conductive contacts in another embodiment of the present invention;
[0027] Figure 12 This is a schematic diagram of the circuit connection between the circuit contacts and the conductive contacts in another embodiment of the present invention;
[0028] Figure 13 This is a schematic diagram of the circuit connection between the circuit contacts and the conductive contacts in other embodiments of this utility model. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0030] See Figure 1-13 The present invention provides a tool for measuring the height deviation of the bottom of a plate, including a measuring rod 1, a first U-shaped buckle 2, a first connecting tube 3, a reference rod 4, a second U-shaped buckle 5, a second connecting tube 6, a flexible tube 7, a first float 8, a second float 9, a power supply 10, an indicator light 11, a switch 12, a contact 13, a contact point 14, and a limiting protrusion 15.
[0031] The measuring rod 1 is a vertically arranged tubular structure, allowing it to be filled with liquid 16. The upper end of the measuring rod 1 has a first top plate to seal it. The upper part of the measuring rod 1 has a first vent hole to balance the air pressure above the liquid surface inside the measuring rod 1 with the air pressure outside, facilitating the rapid flow of the liquid 16 within the measuring rod 1. The upper end of the measuring rod 1 rests against the bottom of the plate.
[0032] The first U-shaped buckle 2 is set with its opening facing downwards on the outer wall of the measuring rod 1, so that the measuring rod 1 can be fixed to a leveling rod by the first U-shaped buckle 2.
[0033] The first connecting tube 3 is a vertically arranged tubular structure. The upper end of the first connecting tube 3 is connected to the lower end of the measuring rod 1.
[0034] The reference rod 4 is a vertically arranged tubular structure, allowing it to be filled with liquid 16. The upper end of the reference rod 4 has a second top plate to seal it. The upper part of the reference rod 4 has a second vent hole to balance the air pressure above the liquid surface inside the reference rod 4 with the air pressure outside, facilitating the rapid flow of liquid 16 within the measuring rod 1. The upper end of the reference rod 4 rests against the bottom of the plate.
[0035] The second U-shaped buckle 5 is set with its opening facing downwards on the outer wall of the reference rod 4, so that the reference rod 4 can be fixed to another leveling rod through the second U-shaped buckle 5.
[0036] The second connecting pipe 6 is a vertically arranged tubular structure. The upper end of the second connecting pipe 6 is connected to the lower end of the reference rod 4.
[0037] Both ends of the hose 7 are connected to the lower ends of the first connecting pipe 3 and the second connecting pipe 6, respectively, forming a U-shape. The hose 7 is a pressure-resistant hose. The hose 7, measuring rod 1, and reference rod 4 are filled with liquid 16, but at this time, the liquid 16 is not completely filled. The liquid 16 is antifreeze liquid 16.
[0038] The first float 8 floats on the liquid surface inside the measuring rod 1. The first float 8 has a base and a protrusion. Both the base and the protrusion are made of lightweight floats. The protrusion is set on the upper part of the base.
[0039] The second float 9 floats on the surface of the liquid inside the reference rod 4. The second float 9 is made of a lightweight float. The second float 9 has the same weight as the first float 8, so that the second float 9 and the first float 8 are at the same horizontal level.
[0040] Power supply 10 is located on measuring rod 1.
[0041] Indicator lights 11 are mounted on the outer wall of the measuring rod 1. Indicator lights 11 are connected to the power supply 10 to form a circuit. There are multiple indicator lights 11 connected in parallel. The indicator lights 11 are arranged vertically, and their arrangement order is the same as that of the corresponding circuit contacts.
[0042] Switch 12 is located on the outer wall of measuring rod 1. Switch 12 is connected to the circuit and is connected in series with each indicator light 11. When switch 12 is turned on, if any indicator light 11 lights up, it indicates that the circuit containing indicator light 11 is normal.
[0043] Contact 13 is disposed on the first float 8. Optionally, contact 13 is a component of the first float 8, and the weight of contact 13 is included in the weight of the first float 8. Alternatively, contact 13 and the first float 8 are two separate structures, and the weight of contact 13 is not included in the weight of the first float 8; in this case, contact 13 is lighter. Contact 13 includes a conductive contact. The conductive contact protrudes from the side of the bump.
[0044] Contact 14 is disposed on measuring rod 1, and is horizontally corresponding to contact 13 when the upper ends of measuring rod 1 and reference rod 4 are on the same horizontal plane. This allows for the measurement rod 1 and reference rod 4 to be pressed against the bottom of the plate, thereby obtaining the height deviation between contact 13 and contact 14 and determining the height difference between the bottom of the plate at measuring rod 1 and the bottom of the plate at reference rod 4. Contact 14 includes a circuit contact. The circuit contact is disposed on the inner wall of measuring rod 1.
[0045] The circuit contacts are connected to the circuit and connected in series with the indicator light 11. The circuit contacts make contact with the corresponding conductive contacts arranged in the horizontal direction, thus completing the circuit. There are multiple circuit contacts, arranged at a predetermined distance of 0.5 mm along the vertical direction. Each circuit contact is connected in series with its respective indicator light 11.
[0046] Optionally, the circuit contacts include a first electrical connection point and a second electrical connection point spaced a certain distance apart and arranged on the same horizontal plane. Under the above conditions, the first electrical connection point and the second electrical connection point are respectively connected to the two ends of a predetermined location on the line between the switch 12 and the indicator light 11 and / or the two ends of a predetermined location on the line between the power supply 10 and the indicator light, so that the circuit contacts are connected to the circuit and connected in series with the indicator light 11. The circuit contacts contact the conductive contacts correspondingly arranged in the horizontal direction and conduct the circuit. When the first electrical connection point and the second electrical connection point are respectively connected to the two ends of a predetermined location on the line between the switch 12 and the indicator light 11, the circuit... Figure 10 As shown. When the first electrical connection point and the second electrical connection point are respectively connected to the two ends of the set point on the line between switch 12 and indicator light 11 and the two ends of the set point on the line between power supply 10 and indicator light, the circuit is as follows. Figure 11 As shown.
[0047] Alternatively, the circuit contact can be an electrical connection point. Under the above conditions, the circuit contact and the conductive contact are respectively connected to the two ends of a predetermined point on the line between switch 12 and indicator light 11 and / or the two ends of a predetermined point on the line between power supply 10 and indicator light, and the circuit contact is located at the end of the line where the indicator light is located, so that the circuit contact is connected to the circuit and connected in series with indicator light 11. The circuit contact contacts the conductive contact correspondingly arranged in the horizontal direction and conducts the circuit. When the circuit contact and the conductive contact are respectively connected to the two ends of a predetermined point on the line between switch 12 and indicator light 11, the circuit... Figure 12 As shown. When the circuit contacts and conductive contacts are respectively connected to the two ends of the line set between switch 12 and indicator light 11, and to the two ends of the line set between power supply 10 and indicator light, the circuit is as follows. Figure 13 As shown.
[0048] A limiting protrusion 15 protrudes from the inner wall of the measuring rod 1 and is positioned directly above and / or below each circuit contact. Optionally, a first top plate is positioned directly above each circuit contact to form a limiting protrusion 15, and a protrusion is positioned below each circuit contact to form another limiting protrusion 15. When the limiting protrusion 15 abuts against the upper part of the conductive contact, the conductive contact contacts the uppermost circuit contact; when the limiting protrusion 15 abuts against the lower part of the conductive contact, the conductive contact contacts the lowermost circuit contact.
[0049] With the above setup, the conductive contacts reach all circuit contacts, and all indicator lights 11 illuminate. If the tops of measuring rod 1 and reference rod 4 are not on the same horizontal plane due to the elevation deviation of the board bottom, the first float 8 and the second float 9 will remain horizontal under the action of liquid 16, causing relative displacement between the conductive contacts and circuit contacts, resulting in some indicator lights 11 failing to illuminate. This confirms the relative deviation between the tops of measuring rod 1 and reference rod 4. For every 1mm increase in the height deviation between the tops of measuring rod 1 and reference rod 4, the relative displacement between the conductive contacts and circuit contacts increases by 0.5mm. When measuring rod 1 is higher than reference rod 4, for every 1mm increase in height deviation, the conductive contact descends 0.5mm relative to the circuit contact, and one indicator light 11 extinguishes from top to bottom. Therefore, for every light extinguished from top to bottom, the bottom of the board at measuring rod 1 is 1mm higher than the bottom of the board at reference rod 4. When measuring rod 1 is lower than reference rod 4, for every 1mm increase in height deviation, the conductive contact rises 0.5mm relative to the circuit contact, and one indicator light 11 turns off from bottom to top. Therefore, for every light that turns off from bottom to top, the bottom of the plate at measuring rod 1 is 1mm lower than the bottom of the plate at reference rod 4. Furthermore, during measurement, the top or bottom light is kept lit. Therefore, when only one light is lit, it indicates that the elevation deviation between the bottom of the plate at measuring rod 1 and the bottom of the plate at reference rod 4 is too large and needs to be corrected for easier observation.
[0050] When using the plate bottom height deviation measuring tool of this utility model, the measuring rod 1 and the reference rod 4 are fixed to two leveling rods respectively by the first U-shaped buckle 2 and the second U-shaped buckle 5. Turn on the switch 12; if any indicator light 11 is lit, it indicates that the circuit is normal. Place the measuring rod 1 and the reference rod 4 against the bottom of the plate and observe the indicator light 11. Read the value when the indicator light 11 is stable. Specifically, for each light that goes out from top to bottom, the bottom of the plate at the measuring rod 1 is 1mm higher than the bottom of the plate at the reference rod 4; conversely, for each light that goes out from bottom to top, the bottom of the plate at the measuring rod 1 is 1mm lower than the bottom of the plate at the reference rod 4.
[0051] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tool for measuring the height deviation of a plate bottom, characterized in that, include: The measuring rod is a vertically positioned tubular structure. The reference rod is a vertically positioned tubular structure. A flexible tube, with its two ends connected to the lower end of the measuring rod and the lower end of the reference rod respectively, and the flexible tube, the measuring rod, and the reference rod are filled with liquid; The contact point floats on the liquid surface inside the measuring rod; The contact point is disposed on the measuring rod and is disposed in the horizontal direction corresponding to the upper end of the measuring rod and the upper end of the reference rod when they are on the same horizontal plane.
2. The plate bottom height deviation measuring tool as described in claim 1, characterized in that, Also includes: A first float, floating on the liquid surface inside the measuring rod, has the contact; The second float floats on the surface of the liquid inside the reference rod, and the weight of the second float is equal to that of the first float.
3. The plate bottom height deviation measuring tool as described in claim 2, characterized in that, Also includes: The power supply is located on the measuring rod. An indicator light is mounted on the measuring rod, and the indicator light is connected to the power supply to form a circuit. The contact includes a conductive contact; The contact includes a circuit contact, which is connected to the circuit and connected in series with the indicator light. The circuit contact contacts the conductive contact correspondingly arranged in the horizontal direction and conducts the circuit.
4. The plate bottom height deviation measuring tool as described in claim 3, characterized in that, The number of indicator lights is multiple, and the indicator lights are connected in parallel; The circuit contacts are multiple, arranged vertically, and connected in series with each indicator light.
5. The plate bottom height deviation measuring tool as described in claim 4, characterized in that, Also includes: A switch is mounted on the measuring rod, the switch is connected to the circuit, and is connected in series with each of the indicator lights.
6. The plate bottom height deviation measuring tool as described in claim 4, characterized in that, The circuit contacts are arranged at predetermined intervals along the vertical direction.
7. The plate bottom height deviation measuring tool as described in claim 4, characterized in that, Each of the indicator lights is arranged vertically, and the arrangement order is the same as the arrangement order of the corresponding circuit contacts.
8. The plate bottom height deviation measuring tool as described in claim 4, characterized in that, The first float also has a base block and a bump, the bump protruding from the upper part of the base block and the conductive contact protruding from the side of the bump.
9. The plate bottom height deviation measuring tool as described in claim 8, characterized in that, Also includes: A limiting protrusion is provided on the inner side wall of the measuring rod and is positioned directly above and / or below each circuit contact. When the limiting protrusion abuts against the upper part of the conductive contact, the conductive contact contacts the uppermost circuit contact. When the limiting protrusion abuts against the lower part of the conductive contact, the conductive contact contacts the lowermost circuit contact.
10. The plate bottom height deviation measuring tool as described in claim 1, characterized in that, The upper part of the measuring rod has a first vent hole; The upper part of the reference rod has a second vent.