A wall flatness detection device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING NO 3 CONSTR ENG
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-21
Smart Images

Figure CN224535082U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction, and in particular to a device for testing the flatness of a wall surface. Background Technology
[0002] Wall inspection is a crucial part of building construction quality control, aiming to ensure the safety, stability, and durability of wall structures while meeting design requirements and relevant standards and specifications. Wall flatness inspection is an important aspect of structural quality acceptance and a vital basis for subsequent plastering plan development and plaster quantity calculation.
[0003] Currently, after the wall flatness test is completed, only simple records are made. There are no clear flatness information markings on the actual wall, making it difficult to intuitively show the wall flatness information to other people and to provide effective guidance for on-site construction. This needs to be improved. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a wall surface flatness detection device that can mark the concave and convex positions on the wall surface separately.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a wall surface flatness testing device, comprising:
[0006] The support plate is set vertically and is used to move in a straight line in front of the wall.
[0007] The detection mechanism is horizontally slidably connected to the support plate and is used to abut against the wall surface;
[0008] A recessed marker is disposed at the front end of the detection mechanism and is used to make paint markings on the wall surface when the detection mechanism moves forward;
[0009] A raised marker is disposed at the front end of the detection mechanism and is used to make paint markings on the wall surface when the detection mechanism moves backward.
[0010] In a preferred embodiment, the present invention can be further configured as follows: the detection mechanism includes a detection tube, a detection plate, a reset mechanism, a detection head, and a detection rod. The detection tube is horizontally disposed on the support plate, the detection plate is vertically disposed inside the detection tube and is horizontally slidably connected to the detection tube, the reset mechanism is used to control the horizontal sliding of the detection plate, the detection head is disposed at the front end of the detection tube, and the detection rod is horizontally disposed on the detection plate, penetrates the detection head, and is used to abut against the wall surface.
[0011] In a preferred embodiment, the present invention can be further configured such that: the reset mechanism includes a telescopic rod, a retaining ring, and a spring; the telescopic rod is horizontally disposed on the back side of the detection plate and passes through the detection tube and the support plate; the retaining ring is disposed inside the detection tube; and the spring is sleeved on the outside of the telescopic rod and located between the detection plate and the retaining ring.
[0012] In a preferred embodiment, the present invention can be further configured such that: a locking rod is vertically slidably connected to the support plate, and the telescopic rod is provided with a locking hole for the locking rod to be inserted.
[0013] In a preferred embodiment, the present invention can be further configured as follows: the indentation marker includes a storage bladder, a spray pipe, a replenishment tank, and a replenishment pipe. The storage bladder is disposed inside the detection tube and located between the detection head and the detection plate, and is subject to contact and compression by the detection plate. The spray pipe is connected to the storage bladder and passes through the detection head. The replenishment tank is disposed on the detection tube and is equipped with a one-way valve. The replenishment pipe connects the replenishment tank and the storage bladder.
[0014] In a preferred embodiment, the present invention can be further configured as follows: the raised marking device includes a fixing frame, a storage box, a piston plate, a paint spraying tube, and a driving mechanism. The fixing frame is L-shaped and disposed on the lower end face of the detection tube. The storage box is horizontally slidably connected to the detection tube, and the horizontal section of the fixing frame passes through the front end of the storage box. The piston plate is vertically disposed inside the storage box and connected to the fixing frame. The paint spraying tube is connected to the rear end of the storage box and passes through the detection head. The driving mechanism is used to control the storage box to slide horizontally in one direction.
[0015] In a preferred embodiment, the present invention can be further configured as follows: the driving mechanism includes a rack, a gear, a one-way ratchet guide wheel, a pulley, a transmission belt, a fixed pulley, and a pull rope. The rack is horizontally disposed at the front end of the storage box. The gear is rotatably disposed below the rack and meshes with the rack. The one-way ratchet guide wheel is disposed on the outer wall of the gear, and its outer ring is fixed to the gear. The pulley is rotatably disposed in front of the gear. The transmission belt is wound around the one-way ratchet guide wheel and the outer wall of the pulley. The fixed pulley is rotatably disposed in front of the pulley. One end of the pull rope is fixed to the outer edge of the pulley, and the other end passes over the fixed pulley and is fixed to the detection plate.
[0016] In summary, this utility model has the following beneficial effects: by setting up a detection mechanism that contacts the wall surface and a support plate that can move in a straight line in front of the wall, the telescopic detection mechanism can detect the concave and convex positions of the wall surface. During the detection process, different colored markings are sprayed on the concave and convex positions in real time, which facilitates the intuitive understanding and observation of the flatness information of the wall in the later stage, and facilitates effective guidance for the later construction on site. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of an embodiment;
[0018] Figure 2 This is a schematic diagram of the connection relationship in the embodiment;
[0019] Figure 3 This is a schematic diagram of the recessed marker in the embodiment;
[0020] Figure 4 This is a schematic diagram of the raised labeler in an embodiment.
[0021] Reference numerals: 1. Support plate; 11. Locking rod; 2. Detection mechanism; 21. Detection tube; 22. Detection plate; 23. Reset mechanism; 24. Detection head; 25. Detection rod; 26. Telescopic rod; 27. Retaining ring; 28. Spring; 29. Locking hole; 3. Depression marker; 31. Storage bladder; 32. Spray pipe; 33. Material replenishment box; 34. Liquid replenishment pipe; 35. One-way valve; 4. Raised marker; 41. Fixing frame; 42. Storage box; 43. Piston plate; 44. Paint spray pipe; 5. Drive mechanism; 51. Rack; 52. Gear; 53. One-way ratchet guide wheel; 54. Pulley; 55. Transmission belt; 56. Fixed pulley; 57. Pull rope. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to the accompanying drawings.
[0023] like Figure 1 , Figure 2 As shown, a wall surface flatness testing device includes a support plate 1, a testing mechanism 2, a depression marker 3, and a protrusion marker 4.
[0024] like Figure 1 , Figure 2 As shown, the support plate 1 is vertically positioned and is used to move in a straight line in front of the wall. The detection mechanism 2 is horizontally slidably connected to the support plate 1 and is used to contact the wall surface. The recessed marker 3 and the raised marker 4 are both located at the front end of the detection mechanism 2 and are used to spray paint markings on the wall surface when the detection mechanism 2 moves forward or backward.
[0025] When it is necessary to test the flatness of the wall, fix the support plate 1 on the moving vehicle or slide rail so that the support plate 1 always moves in a straight line in front of the wall, ensuring that the distance between the support plate 1 and the standard wall is always the same.
[0026] At the same time, the detection mechanism 2 contacts the wall surface, and when the support plate 1 moves, the detection mechanism 2 is used to detect the flatness of the wall surface. When a depression or a protrusion is detected, the depression marker 3 and the protrusion marker 4 on the marking mechanism work and mark different colors on the wall surface.
[0027] Therefore, by setting up a detection mechanism 2 that contacts the wall surface and a support plate 1 that can move in a straight line in front of the wall, the telescopic detection mechanism 2 can detect the concave and convex positions of the wall surface. During the detection process, different colored markings are sprayed on the concave and convex positions in real time, which makes it easier to intuitively understand and observe the flatness information of the wall later, and facilitates effective guidance for the later construction on site.
[0028] like Figure 1 , Figure 2 As shown, the detection mechanism 2 includes a detection tube 21, a detection plate 22, a reset mechanism 23, a detection head 24, and a detection rod 25.
[0029] like Figure 1 , Figure 2 As shown, the detection tube 21 is horizontally mounted on the support plate 1, the detection plate 22 is vertically mounted inside the detection tube 21 and is horizontally slidably connected to the detection tube 21, and the reset mechanism 23 is used to control the horizontal sliding of the detection plate 22.
[0030] like Figure 1 , Figure 2 As shown, the reset mechanism 23 includes a telescopic rod 26, a retaining ring 27, and a spring 28. The telescopic rod 26 is horizontally disposed on the back side of the detection plate 22 and passes through the detection tube 21 and the support plate 1. The retaining ring 27 is disposed inside the detection tube 21, and the spring 28 is sleeved on the outside of the telescopic rod 26 and is located between the detection plate 22 and the retaining ring 27.
[0031] like Figure 1 , Figure 2 As shown, a locking rod 11 is vertically slidably connected to the support plate 1, and a locking hole 29 is provided on the telescopic rod 26 for the locking rod 11 to be inserted. When the locking rod 11 is inserted into the locking hole 29, the spring 28 is in a shallow compression state, and when the locking rod 11 is disengaged from the locking hole 29, the telescopic rod 26 can slide forward.
[0032] like Figure 1 , Figure 2 As shown, the detection head 24 is located at the front end of the detection tube 21, and the detection rod 25 is horizontally positioned on the detection plate 22, passing through the detection head 24 and used to contact the wall surface.
[0033] When the testing mechanism 2 is working, first select a flat wall surface and make the testing rod 25 touch the wall surface, then pull out the locking rod 11 so that the testing rod 25 can extend and retract freely.
[0034] When the wall surface is flat, the detection rod 25 always contacts the wall surface, and the detection rod 25 and the detection plate 22 are in their initial positions. When there is a depression in the wall surface, the spring 28 drives the detection plate 22 to slide forward, and the detection plate 22 drives the detection rod 25 to move forward synchronously. When there is a protrusion in the wall surface, the wall surface presses the detection rod 25 to slide backward, and the detection rod 25 drives the detection plate 22 to move synchronously, and compresses the spring 28 to contract.
[0035] like Figure 2 , Figure 3 As shown, the indentation marker 3 includes a storage bladder 31, a spray pipe 32, a replenishment tank 33, and a replenishment pipe 34.
[0036] like Figure 2 , Figure 3 As shown, the storage bladder 31 is disposed inside the detection tube 21 and located between the detection head 24 and the detection plate 22, allowing the detection plate 22 to contact and compress it. The spray pipe 32 is connected to the storage bladder 31 and passes through the detection head 24. The replenishment tank is disposed on the detection tube 21, and a one-way valve 35 is provided on the replenishment tank. The replenishment pipe 34 connects the replenishment tank and the storage bladder 31.
[0037] When there is a recess in the wall, the detection plate 22 slides forward and presses the storage bladder 31, causing the liquid inside the storage bladder 31 to be sprayed onto the wall along the spray pipe 44, thus achieving marking. After the detection plate 22 resets, the pressure on the storage bladder 31 is released. At this time, the storage bladder 31 automatically resets, and under the action of the one-way valve 35 on the replenishment box 33, air is allowed to enter the discharge box. At the same time, the liquid in the discharge box is replenished into the storage bladder 31 through the replenishment pipe 34, completing the automatic replenishment of liquid and thus completing the marking operation.
[0038] like Figure 2 , Figure 4 As shown, the raised labeler 4 includes a fixing frame 41, a storage box 42, a piston plate 43, a paint spray tube 44, and a drive mechanism 5.
[0039] like Figure 2 , Figure 4 As shown, the fixing bracket 41 is L-shaped and positioned on the lower end face of the detection tube 21. The storage box 42 is horizontally slidably connected to the detection tube 21, and the horizontal section of the fixing bracket 41 extends through the front end of the storage box 42. The piston plate 43 is vertically positioned inside the storage box 42 and connected to the fixing bracket 41. The paint spraying pipe 44 is connected to the rear end of the storage box 42 and extends through the detection head 24.
[0040] like Figure 2 , Figure 4 As shown, the drive mechanism 5 is used to control the unidirectional horizontal sliding of the storage box 42. The drive mechanism 5 includes a rack 51, a gear 52, a one-way ratchet guide wheel 53, a pulley 54, a transmission belt 55, a fixed pulley 56, and a pull rope 57.
[0041] like Figure 2 , Figure 4 As shown, rack 51 is horizontally disposed at the front end of storage box 42, gear 52 is rotatably disposed below rack 51 and meshes with rack 51, and one-way ratchet guide wheel 53 is disposed on the outer wall of gear 52 and the outer ring is fixed to gear 52.
[0042] like Figure 2 , Figure 4 As shown, pulley 54 is rotatably positioned in front of gear 52, and transmission belt 55 is wound around one-way ratchet guide pulley 53 and the outer wall of pulley 54. Fixed pulley 56 is rotatably positioned in front of pulley 54, and one end of pull rope 57 is fixed to the outer edge of pulley 54, while the other end passes over fixed pulley 56 and is fixed to detection plate 22.
[0043] When there is a protrusion on the wall, the detection plate 22 slides backward and pulls the pull rope 57 to move synchronously. At this time, the pull rope 57 pulls the pulley 54 to rotate counterclockwise, and under the cooperation of the transmission belt 55, controls the one-way ratchet guide wheel 53 to rotate counterclockwise. At this time, the one-way ratchet guide wheel 53 can drive the gear 52 to rotate.
[0044] Subsequently, gear 52 drives rack 51 to slide forward, rack 51 pulls storage box 42 to slide forward in sync. At this time, storage box 42 slides relative to piston plate 43 and squeezes out the liquid in storage box 42, which is then sprayed onto the wall along spray pipe 44 to achieve marking.
[0045] When the detection plate 22 resets, it slides forward. At this time, under the action of the torsion spring on the pulley 54, the pulley 54 rotates in the opposite direction, pulling the rope 57 to automatically tighten. At the same time, the pulley 54 drives the transmission belt 55 to move synchronously. Since the one-way ratchet guide wheel 53 rotates in one direction, the transmission belt 55 will drive the one-way ratchet guide wheel 53 to idle, which will not affect the movement of the storage box 42, allowing the storage box 42 to continue to slide forward in the next cycle, realizing the extrusion of the internal liquid.
[0046] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.
Claims
1. A device for detecting the flatness of a wall surface, characterized in that: include: The support plate (1) is set vertically and is used to move in a straight line in front of the wall. The detection mechanism (2) is horizontally slidably connected to the support plate (1) and is used to abut against the wall surface; A recessed marker (3) is provided at the front end of the detection mechanism (2) and is used to make paint markings on the wall surface when the detection mechanism (2) moves forward; A raised marker (4) is located at the front end of the detection mechanism (2) and is used to make paint markings on the wall surface when the detection mechanism (2) moves backward.
2. The wall surface flatness testing device according to claim 1, characterized in that: The detection mechanism (2) includes a detection tube (21), a detection plate (22), a reset mechanism (23), a detection head (24), and a detection rod (25). The detection tube (21) is horizontally mounted on the support plate (1). The detection plate (22) is vertically mounted inside the detection tube (21) and is horizontally slidably connected to the detection tube (21). The reset mechanism (23) is used to control the horizontal sliding of the detection plate (22). The detection head (24) is located at the front end of the detection tube (21). The detection rod (25) is horizontally mounted on the detection plate (22), passes through the detection head (24), and is used to abut against the wall.
3. The wall surface flatness testing device according to claim 2, characterized in that: The reset mechanism (23) includes a telescopic rod (26), a retaining ring (27), and a spring (28). The telescopic rod (26) is horizontally arranged on the back side of the detection plate (22) and passes through the detection tube (21) and the support plate (1). The retaining ring (27) is arranged inside the detection tube (21). The spring (28) is sleeved on the outside of the telescopic rod (26) and is located between the detection plate (22) and the retaining ring (27).
4. The wall surface flatness testing device according to claim 3, characterized in that: A locking rod (11) is vertically slidably connected to the support plate (1), and a locking hole (29) is provided on the telescopic rod (26) for the locking rod (11) to be inserted.
5. The wall surface flatness testing device according to claim 4, characterized in that: The indentation marker (3) includes a storage bladder (31), a spray pipe (32), a replenishment tank (33), and a replenishment pipe (34). The storage bladder (31) is disposed inside the detection tube (21) and located between the detection head (24) and the detection plate (22), and is subject to contact and compression by the detection plate (22). The spray pipe (32) is connected to the storage bladder (31) and passes through the detection head (24). The replenishment tank is disposed on the detection tube (21) and is equipped with a one-way valve (35). The replenishment pipe (34) connects the replenishment tank and the storage bladder (31).
6. The wall surface flatness testing device according to claim 5, characterized in that: The raised marking device (4) includes a fixing frame (41), a storage box (42), a piston plate (43), a paint spraying tube (44), and a driving mechanism (5). The fixing frame (41) is L-shaped and is arranged on the lower end face of the detection tube (21). The storage box (42) is horizontally slidably connected to the detection tube (21), and the horizontal section of the fixing frame (41) passes through the front end of the storage box (42). The piston plate (43) is vertically arranged inside the storage box (42) and connected to the fixing frame (41). The paint spraying tube (44) is connected to the rear end of the storage box (42) and passes through the detection head (24). The driving mechanism (5) is used to control the storage box (42) to slide horizontally in one direction.
7. The wall surface flatness testing device according to claim 6, characterized in that: The drive mechanism (5) includes a rack (51), a gear (52), a one-way ratchet guide wheel (53), a pulley (54), a transmission belt (55), a fixed pulley (56), and a pull rope (57). The rack (51) is horizontally positioned at the front end of the storage box (42). The gear (52) is rotatably positioned below the rack (51) and meshes with it. The one-way ratchet guide wheel (53) is located on the outer wall of the gear (52). The outer ring is fixed to the gear (52), the pulley (54) is rotatably disposed in front of the gear (52), the transmission belt (55) is wrapped around the one-way ratchet guide wheel (53) and the outer wall of the pulley (54), the fixed pulley (56) is rotatably disposed in front of the pulley (54), one end of the pull rope (57) is fixed to the outer edge of the pulley (54), and the other end passes over the fixed pulley (56) and is fixed to the detection plate (22).