A gypsum hollow core floor flatness detection device

Abstract

The utility model discloses a gypsum hollow core floor flatness detection device relates to building construction technical field, including the ruler body, the bubble pipe is fixedly connected with in the ruler body top end middle position department, be equipped with the isolation mechanism on the ruler body, and the isolation mechanism is located the contact surface of the gypsum hollow core floor of the ruler body to the detection, the isolation mechanism includes the mounting groove, the inside fixedly connected with the guide rod of symmetrical setting of mounting groove, the inside close bottom end position of mounting groove is slidably connected with the support, and the support is along the vertical slot high direction of mounting groove and slides, the air bag is symmetrically installed to the both sides of support, and the spring is fixedly connected with in the support top end corresponding guide rod position department, and the spring is sleeved in the guide rod, the bottom fixedly connected with rubber layer of support, to solve the level after last measurement, and its bottom datum plane is easy to stick these dust particles, and the residual dust particle can directly influence the next use's technical problem of ruler body.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a device for detecting the flatness of gypsum hollow core floor slabs. Background Technology

[0002] From factory prefabrication to on-site installation, gypsum hollow core slabs undergo multiple handling and transfer processes. During this process, the edges and corners of the slabs are prone to bumps and damage, and the overall structure may deform due to uneven stress. Therefore, before the slabs are officially installed, their flatness must be strictly tested. This step requires the use of a spirit level, a commonly used measuring tool in construction. Its core function is to detect or measure the horizontality and verticality of an object's surface. Depending on the material, spirit levels can be divided into various types, such as plastic, stainless steel, and aluminum alloy. Among them, stainless steel and aluminum alloy are more suitable for precision testing of prefabricated components like gypsum hollow core slabs due to their high rigidity and stable flatness.

[0003] The existing patent document with publication number CN223106956U discloses a spirit level, which relates to measuring tools. The key technical points of the solution are: it includes a spirit level body, and grooves are provided on two opposite side walls of the spirit level body. Each groove contains a support rod, and the movable end of the support rod is provided with a suction cup. An adjustment component is provided on the support rod. When people use the spirit level to adjust the level of a machine tool, the support on the spirit level body can be flipped out, and the suction cup can be adsorbed onto the outer surface of the machine tool, so that the suction cup can provide better support for the spirit level body, making it less likely to tip over during the adjustment of the machine tool. The grooves that can store the support rod can provide better protection for the support rod. The spirit level body is made of aluminum alloy, which can improve the overall strength of the spirit level body.

[0004] While the above-mentioned application has many beneficial effects, it still has the following shortcomings: In the actual measurement process, since the surface of the floor slab to be tested often has a lot of impurities and dust, after the level is completed, the reference surface at the bottom of the level is prone to adhering to these dust particles. These residual dust particles will directly affect the next use of the level. On the one hand, the dust will form a gap between the bottom of the level and the surface of the floor slab, making it difficult for the level to fit smoothly against the plane being measured, resulting in local suspension or tilting. On the other hand, the inability of the level to be laid flat will directly interfere with the centering judgment of the internal bubble level, ultimately causing a significant reduction in the accuracy of the levelness test results and affecting the subsequent judgment of construction quality. Utility Model Content

[0005] The purpose of this invention is to provide a flatness testing device for gypsum hollow core floor slabs to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution:

[0007] A flatness testing device for gypsum hollow core floor slabs includes a ruler, with an air bubble tube fixedly connected to the middle position of the top of the ruler.

[0008] The ruler is equipped with an isolation mechanism located on the contact surface of the ruler facing the gypsum hollow core floor slab to be tested.

[0009] The isolation mechanism includes a mounting groove, inside which symmetrically arranged guide rods are fixedly connected, and a bracket is slidably connected near the bottom of the mounting groove; the bracket slides along the vertical height of the mounting groove.

[0010] Airbags are symmetrically installed on both sides of the bracket, and springs are fixedly connected to the top of the bracket at the position corresponding to the guide rod, with the springs sleeved on the guide rod; a rubber layer is fixedly connected to the bottom of the bracket.

[0011] In a further technical solution, the mounting groove is formed at the bottom end of the ruler body.

[0012] In a further technical solution, the bottom end of the guide rod is slidably inserted into the inside of the bracket, and the bracket and the rubber layer are provided with insertion holes at the positions corresponding to the guide rod.

[0013] In a further technical solution, the top end of each spring is fixedly connected to the inner top wall of the mounting groove; the bottom end of the spring is located at the top of the insertion hole.

[0014] In a further technical solution, the bracket has position slots on both sides, and an airbag is installed in the position slot, with one end of the airbag installed in the position slot.

[0015] A bottom plate is installed at the bottom of the ruler body. The bottom plate has two sets of constricting surfaces that are arranged opposite each other. The distance between the two sets of constricting surfaces is less than the width of the mounting groove.

[0016] The vertical cross-section of the bracket is "T" shaped; and the top width of the bracket is less than the distance between the two sets of constriction surfaces; the top of the bracket is constrained by the two sets of bottom plates to be located in the mounting groove.

[0017] In a further technical solution, a brush belt is vertically installed on the outer surface of the airbag, and the brush belt has brushes arranged outward away from the surface of the airbag.

[0018] In a further technical solution, the position groove is a stepped groove, and a transverse spring is installed in the position groove. One end of the transverse spring is fixedly connected to the inner wall of the position groove, and a push-pull plate is installed at the other end. The push-pull plate is fixedly connected to the airbag.

[0019] The axis of the transverse spring is perpendicular to the height direction of the mounting groove.

[0020] In a further technical solution, a constraint frame is provided at the outlet of the position slot, and a strip-shaped groove is provided inside the constraint frame. The size of the strip-shaped groove is smaller than the size of the push-pull plate.

[0021] In a further technical solution, the closing surface is a comb surface, and scraping teeth are provided on the side of the closing surface facing the bracket, and the side of the scraping teeth facing the bracket is an arc surface.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] When the measuring scale is in contact with the floor slab surface for measurement, the isolation mechanism automatically retracts into the scale body, without affecting the normal contact and measurement accuracy of the reference surface at the bottom of the scale body. After the scale body completes the flatness test of the first floor slab, the isolation mechanism will reset to its initial position under the linkage of various components. During the reset process, the bracket and airbag in the mechanism move synchronously, which can push away large dust particles adhering to the bottom of the scale body, effectively avoiding the problem that dust residue will prevent the scale body from being able to fit tightly with the floor slab surface the next time it is used. The entire dust cleaning process does not require active intervention from staff. Just follow the normal inspection operation, and the isolation mechanism can automatically complete the cleaning along with the inspection process, greatly reducing manual maintenance steps and making it highly practical.

[0024] This invention uses a push-pull plate and a transverse spring installed at one end of the airbag to automatically push and pull the airbag by squeezing the bottom plate, thus achieving the combined effect of cleaning the bottom of the bottom plate and shrinking to allow the bracket to return to its mounting slot. Attached Figure Description

[0025] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of this utility model;

[0027] Figure 2 This is a schematic diagram of the bottom structure of Embodiment 1 of this utility model;

[0028] Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of the present invention;

[0029] Figure 4 for Figure 3 Enlarged view of part A;

[0030] Figure 5 This is a schematic diagram of the bottom structure of Embodiment 2 of this utility model;

[0031] Figure 6 This is a schematic diagram of the two sets of bottom plate structures;

[0032] Figure 7 for Figure 5 Enlarged view of part B;

[0033] Figure 8 The vertical cross-section of the support along the airbag Figure 1 ;

[0034] Figure 9 for Figure 8 Enlarged view of part C;

[0035] Figure 10 The vertical cross-section of the stent along the airbag Figure 2 ;

[0036] Figure 11 This is a schematic diagram of the constraint frame of this utility model;

[0037] Figure 12 This is a schematic diagram of another bottom plate of this utility model;

[0038] Figure 13 for Figure 12 Enlarged view of part D.

[0039] In the diagram: 1. Ruler body; 2. Bubble tube; 3. Isolation mechanism; 31. Mounting groove; 32. Guide rod; 33. Bracket; 34. Airbag; 35. Spring; 36. Rubber layer; 37. Insertion hole; 38. Position groove; 39. Bottom plate; 310. Closing surface; 311. Brush belt; 312. Brush; 313. Transverse spring; 314. Push-pull plate; 315. Constraint frame; 316. Strip groove; 317. Scraper teeth. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0041] The application principle of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] Example 1

[0043] Please see Figure 1 A flatness testing device for gypsum hollow core floor slabs includes a ruler 1, with an air bubble tube 2 fixedly connected to the middle position of the top of the ruler 1.

[0044] When using the instrument, hold ruler 1 so that the bottom of ruler 1 is in contact with the surface of the hollow floor slab to be tested. Then observe the position of the bubble inside the bubble tube 2. If the bubble is located in the middle of the bubble tube 2, it means that the flatness of the floor slab surface is normal. If the bubble is biased to one side of the bubble tube 2, it means that ruler 1 is biased to that side, and the flatness of the floor slab surface is not good. The tilt direction and deviation should be recorded. The overall flatness of the floor slab can be further checked by adjusting the position of ruler 1 or changing the measuring point.

[0045] Example 2

[0046] Please see Figure 2-4 The technical solution in this embodiment that differs from that in Embodiment 1 includes: an isolation mechanism 3 is provided on the ruler body 1, and the isolation mechanism 3 includes a mounting groove 31, such as... Figure 2 As shown, symmetrically arranged guide rods 32 are fixedly connected inside the mounting groove 31. A bracket 33 is slidably connected inside the mounting groove 31 near the bottom. Symmetrically arranged airbags 34 are fixedly connected to the bracket 33. Springs 35 are fixedly connected to the top of the bracket 33 at the positions corresponding to the guide rods 32. A rubber layer 36 is fixedly connected to the bottom of the bracket 33.

[0047] The mounting groove 31 is formed at the bottom end of the ruler body 1. The bottom end of the guide rod 32 is slidably inserted into the inside of the bracket 33. The bracket 33 and the rubber layer 36 are provided with insertion holes 37 at the positions corresponding to the guide rod 32. The top ends of the springs 35 are fixedly connected to the inner top wall of the mounting groove 31; the bottom ends of the springs 35 are located at the top of the insertion holes 37. The top ends of the springs 35 are fixedly connected to the inner top wall of the mounting groove 31, and the top ends of the airbags 34 are movably abutting against the corresponding positions at the bottom end of the ruler body 1.

[0048] During use, before the ruler 1 is pressed down and contacts the floor surface, the rubber layer 36 will first contact the floor surface. During the pressing down of the ruler 1, the rubber layer 36 will continuously and passively retract into the mounting groove 31 due to the contact with the floor. At the same time as the rubber layer 36 retracts, the bracket 33 will also retract into the mounting groove 31. The guide rod 32 will guide its retraction movement. At the same time, the bracket 33 will also compress the spring 35. During the retraction of the bracket 33, it will also drive the two airbags 34 to be compressed into the mounting groove 31. When all components are completely retracted into the mounting groove 31, the bottom of the ruler 1 will make normal contact with the floor surface, and the rubber layer 36 will also make contact with the floor surface. Even if there are dust particles adhering to the bottom of the rubber layer 36, it will not affect the flatness of the contact between the bottom of the ruler 1 and the floor surface, because the rubber layer 36 is deformable.

[0049] When the worker moves the ruler 1 upwards to separate it from the floor slab, the spring 35 will drive the bracket 33 and the rubber layer 36 to return downwards. The returned bracket 33 will then drive the airbag 34 to return to its original position. During the return process, the top of the airbag 34 will rub against the corresponding position at the bottom of the ruler 1, thereby pushing away the dust particles at the bottom of the ruler 1, completing the cleaning of the bottom of the ruler 1. This process can be repeated, without requiring the worker to actively intervene at the bottom of the ruler 1, making it highly convenient to operate. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

[0050] Example 3

[0051] like Figure 5-11 As shown, this is another embodiment of the present invention, based on embodiment 2, as follows: Figure 8 As shown, the bracket 33 has position slots 38 on both sides, and an airbag 34 is installed in the position slot 38, with one end of the airbag 34 installed in the position slot 38.

[0052] A bottom plate 39 is installed at the bottom of the ruler body 1. The bottom plate 39 has two sets of concave surfaces 310 arranged opposite each other, such as... Figure 6 As shown; Figure 8 As shown, the distance between the two sets of converging surfaces 310 is less than the width of the mounting groove 31; the vertical cross-section of the bracket 33 is "T" shaped; and the top width of the bracket 33 is less than the distance between the two sets of converging surfaces 310; the two sets of bottom plates 39 constrain the top of the bracket 33 to be located within the mounting groove 31.

[0053] like Figure 7 As shown, a brush belt 311 is vertically mounted on the outer surface of the airbag 34, and a brush 312 is disposed on the brush belt 311 away from the surface of the airbag 34. The position groove 38 is a stepped groove, and a transverse spring 313 is installed in the position groove 38. One end of the transverse spring 313 is fixedly connected to the inner wall of the position groove 38, and the other end is installed with a push-pull plate 314, which is fixedly connected to the airbag 34.

[0054] The axis of the transverse spring 313 is perpendicular to the height direction of the mounting groove 31.

[0055] like Figure 9As shown, a constraint frame 315 is provided at the outlet of the position slot 38, and a strip-shaped slot 316 is provided inside the constraint frame 315. The size of the strip-shaped slot 316 is smaller than the size of the push-pull plate 314.

[0056] This invention uses a push-pull plate and a transverse spring installed at one end of the airbag to automatically push and pull the airbag by squeezing the bottom plate, thus achieving the combined effect of cleaning the bottom of the bottom plate and shrinking to allow the bracket to return to its mounting slot.

[0057] like Figure 8 As shown, when the airbag is completely lower than the bottom plate, the spring pushes the airbag and surface brush outward to clean the bottom surface of the bottom plate.

[0058] like Figure 10 As shown, when the airbag is pressed against the bottom plate, the pushing airbag presses against the push-pull plate, causing the airbag to retract into the position groove, thereby causing the bracket to retract into the mounting groove.

[0059] Example 4

[0060] like Figure 12 and 13 As shown, the closing surface 310 is a comb-like surface, and scraping teeth 317 are provided on the side of the closing surface 310 facing the bracket 33, and the side of the scraping teeth 317 facing the bracket 33 is an arc surface. This utility model uses scraping teeth to clean the brush, reducing the probability of material entering the mounting groove.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gypsum hollow core floor slab flatness testing device, comprising a ruler (1), wherein a bubble tube (2) is fixedly connected to the middle position of the top of the ruler (1). Its features are: The ruler (1) is provided with an isolation mechanism (3), which is located on the contact surface of the ruler (1) facing the gypsum hollow floor slab to be tested; The isolation mechanism (3) includes a mounting groove (31), and symmetrically arranged guide rods (32) are fixedly connected inside the mounting groove (31). A bracket (33) is slidably connected inside the mounting groove (31) near the bottom end. The bracket (33) slides along the vertical groove height direction of the mounting groove (31). Airbags (34) are symmetrically installed on both sides of the bracket (33). Springs (35) are fixedly connected to the top of the bracket (33) at the position corresponding to the guide rod (32), and the springs (35) are sleeved on the guide rod (32). A rubber layer (36) is fixedly connected to the bottom of the bracket (33).

2. The gypsum hollow core floor slab flatness testing device according to claim 1, characterized in that: The mounting groove (31) is located at the bottom of the ruler (1).

3. The gypsum hollow core floor slab flatness testing device according to claim 1, characterized in that: The bottom end of the guide rod (32) is slidably inserted into the inside of the bracket (33), and the bracket (33) and the rubber layer (36) are provided with insertion holes (37) at the positions corresponding to the guide rod (32).

4. The gypsum hollow core floor slab flatness testing device according to claim 3, characterized in that: The top end of each spring (35) is fixedly connected to the inner top wall of the mounting groove (31); the bottom end of the spring (35) is located at the top of the insertion hole (37).

5. The gypsum hollow core floor slab flatness testing device according to claim 1, characterized in that: The bracket (33) has position slots (38) on both sides, and an airbag (34) is installed in the position slot (38), with one end of the airbag (34) installed in the position slot (38). A bottom plate (39) is installed at the bottom of the ruler (1). The bottom plate (39) has two sets of constricting surfaces (310) arranged opposite to each other. The distance between the two sets of constricting surfaces (310) is less than the width of the mounting groove (31). The vertical cross section of the bracket (33) is "T" shaped; and the top width of the bracket (33) is less than the distance between the two sets of the closing surfaces (310); the two sets of bottom plates (39) constrain the top of the bracket (33) to be located in the mounting groove (31).

6. The gypsum hollow core floor slab flatness testing device according to claim 5, characterized in that: A brush belt (311) is vertically mounted on the outer surface of the airbag (34), and a brush (312) is provided on the brush belt (311) away from the surface of the airbag (34).

7. The gypsum hollow core floor slab flatness testing device according to claim 6, characterized in that: The position groove (38) is a stepped groove. A transverse spring (313) is installed in the position groove (38). One end of the transverse spring (313) is fixedly connected to the inner wall of the position groove (38), and the other end is installed with a push-pull plate (314). The push-pull plate (314) is fixedly connected to the airbag (34). The axis of the transverse spring (313) is perpendicular to the height direction of the mounting groove (31).

8. The gypsum hollow core floor slab flatness testing device according to claim 6, characterized in that: A constraint frame (315) is provided at the outlet of the position slot (38), and a strip groove (316) is provided inside the constraint frame (315). The size of the strip groove (316) is smaller than the size of the push-pull plate (314).

9. The gypsum hollow core floor slab flatness testing device according to claim 6, characterized in that: The closing surface (310) is a comb surface, and scraping teeth (317) are provided on the side of the closing surface (310) facing the bracket (33), and the side of the scraping teeth (317) facing the bracket (33) is an arc surface.

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