Flatness measuring device for construction

Abstract

The present invention discloses a flatness measuring device for construction, which relates to the technical field of flatness measuring devices and includes a handle tube. A controller is fixedly installed at the tail end of the handle tube through screw locking, and a pressing ring is welded to the head end of the handle tube, and a rubber ring is arranged at the bottom of the pressing ring; Two hexagonal short shafts are symmetrically welded on the circumferential outer wall of the pressing ring, and the tail ends of the two hexagonal short shafts are rotatably connected with a hexagonal long shaft; A sliding sleeve is slidably sleeved on the top section of the handle tube, the cross section of the sliding sleeve is of an I-shaped structure, and a positioning sleeve is slidably sleeved on the lower half section of the handle tube, and a tightening bolt is screwed through the positioning sleeve. The two hexagonal long shafts of the present invention are rotatably installed and can swing upward and contract when idle, reducing the occupation of the support space. Moreover, the two mounting plates are slidably installed and can slide and lean against the pressing ring when idle, further reducing the occupation of the support space, thus solving the problem of inconvenient overall transportation and storage of the instrument.

Description

Technical Field

[0001] The present invention relates to the technical field of flatness measuring instruments, specifically a flatness measuring instrument for building construction. Background Art

[0002] The flatness of the roof and wall is generally used for detecting the quality indicators of engineering projects after the completion of building construction. When detecting the flatness of the wall, detection instruments are required. When the existing flatness measuring instrument detects the roof plane, it is necessary to hold the measuring instrument by hand and press the measuring component (distance measuring sensor) against the roof wall and move it forward to drive the measuring component to slide along the wall for detection. During the walking movement measurement process, it is also necessary to exert force with the hand in real time to keep the measuring component upright to prevent the measuring component from tilting with the wall and affecting the measurement data. This causes the operator to exert force to keep the measuring component upright in real time while walking, resulting in laborious, inconvenient, and inefficient detection operations. Summary of the Invention

[0003] The purpose of the present invention is to provide a flatness measuring instrument for building construction, which has a six-sided long shaft. The two six-sided long shafts are rotatably installed and can swing upward and contract when idle, reducing the occupation of the support space. Moreover, the two mounting plates are slidably installed and can slide and lean against the pressure ring when idle, further reducing the occupation of the support space, and solving the problems of inconvenient overall transportation and storage of the instrument.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A flatness measuring instrument for building construction, including a handle tube. The tail end of the handle tube is fixedly installed by screwing a controller, and the head end of the handle tube is welded with a pressure ring, and a rubber ring is arranged at the bottom of the pressure ring; Two six-sided short shafts are symmetrically welded on the circumferential outer wall of the pressure ring, and the tail ends of the two six-sided short shafts are rotatably connected to a six-sided long shaft; A sliding sleeve is slidably sleeved on the top section of the handle tube, and the cross-section of the sliding sleeve is in an I-shaped structure. A positioning sleeve is slidably sleeved on the lower half of the handle tube, and a tightening bolt is screwed through the positioning sleeve; Two mounting plates are slidably sleeved on the two six-sided short shafts in opposite directions. A row of laser rangefinders is screwed through and installed at equal intervals on the two mounting plates, and the two rows of laser rangefinders are electrically connected to the controller.

[0005] Preferably, a triangular stop strip is welded to the tail end of each of the two six-sided short shafts, and the lower swing of the tail end section of the two six-sided long shafts abuts against the two triangular stop strips.

[0006] Preferably, a pressure plate is welded and fixed to the bottom of the head end of each of the two six-sided long shafts, and a rubber pad is arranged at the bottom of each of the two pressure plates.

[0007] Preferably, two vertical tension shafts are symmetrically welded to the bottom of the sliding sleeve. The two vertical tension shafts are correspondingly penetrated and fitted with the positioning sleeve, and a driving sleeve is welded and fixed to the bottom of the two vertical tension shafts.

[0008] Preferably, two connecting rods are symmetrically and rotatably connected to the circumferential outer wall of the driving sleeve. The tail ends of the two connecting rods are correspondingly rotatably connected to the middle sections of the two mounting plates.

[0009] Preferably, two vertical support connecting shafts are symmetrically welded to the bottom of the positioning sleeve, and a force transmission ring is welded to the bottom of the two vertical support connecting shafts.

[0010] Preferably, two pull rods are symmetrically and rotatably connected to the circumferential end surface of the positioning sleeve. The tail ends of the two pull rods are correspondingly rotatably connected to the head end sections of the two hexagonal long shafts.

[0011] Preferably, the force transmission ring is slidably fitted with the bottom section of the handle tube, and the force transmission ring slides upward to abut against the driving sleeve.

[0012] Preferably, the driving sleeve is located on the pipe section at the bottom side of the positioning sleeve, and when the two hexagonal long shafts are horizontally unfolded, the driving sleeve slides upward to abut against the positioning sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. In the present invention, the two hexagonal long shafts are rotatably installed and can swing upward and contract when idle, reducing the occupation of the support space. Moreover, the two mounting plates are slidably installed and can slide and abut against the pressure ring when idle, further reducing the occupation of the support space, and being more convenient for transportation and storage;

[0015] 2. In the present invention, the detection of the roof building surface can be completed only by standing still and performing a simple up-and-down sliding movement of the hand (operating the sliding sleeve). Compared with the traditional measuring instrument that requires holding the measuring instrument body and vertically pressing the measuring component against the wall of the roof, and also requires a walking movement to drive the measuring component to slide along the wall to complete the measurement, the present invention can save the trouble of walking movement and vertically holding and pressing the measuring component, greatly simplifying the measurement operation steps, being convenient, fast, time-saving and labor-saving;

[0016] 3. In the present invention, when the positioning sleeve slides upward to contract the two hexagonal long shafts, it can drive the force transmission ring to slide upward and abut against the driving sleeve, enabling the driving sleeve to be linked and positioned by the positioning sleeve, so that the two mounting plates are kept in the inner sliding and contracting use state. This saves the trouble of additionally arranging positioning and holding components for the two mounting plates and the trouble of operating the tightness of the positioning and holding components, simplifies the expansion and contraction operation steps, and is convenient and efficient to use. Description of the Drawings

[0017] Figure 1 Schematic diagram of the sliding installation position of the mounting plate of the present invention;

[0018] Figure 2 Schematic diagram of the bottom structure of the mounting plate of the present invention;

[0019] Figure 3 3D schematic diagram of the mounting plate of the present invention;

[0020] Figure 4 Schematic diagram of the sliding installation of the positioning sleeve of the present invention;

[0021] Figure 5 Schematic diagram of the structure of the positioning sleeve of the present invention;

[0022] Figure 6 Schematic diagram of the structure of the pressure ring of the present invention;

[0023] Figure 7 For the present invention Figure 1 Enlarged schematic diagram of part A in;

[0024] Figure 8 For the present invention Figure 6 Enlarged schematic diagram of part B in;

[0025] In the figure, the corresponding relationship between the part names and the drawing reference numbers is as follows:

[0026] 1. Pipe; 101. Pressure ring; 102. Hexagonal short shaft; 103. Hexagonal long shaft; 104. Pressure plate; 105. Triangular stop bar; 2. Controller; 3. Slide sleeve; 301. Vertical pull shaft; 302. Driving sleeve; 303. Link; 4. Mounting plate; 401. Laser rangefinder; 5. Positioning sleeve; 501. Pull rod; 502. Vertical support connecting shaft; 503. Force transmission ring. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Please refer to Figures 1 to 8, an embodiment provided by the present invention: a flatness measuring device for building construction, including a handle tube 1. A controller 2 is fixedly installed at the tail end of the handle tube 1 by screwing. And a pressing ring 101 is welded to the head end of the handle tube 1. A rubber ring is provided at the bottom of the pressing ring 101; Two hexagonal short shafts 102 are symmetrically welded to the circumferential outer wall of the pressing ring 101. The tail ends of the two hexagonal short shafts 102 are both rotatably connected to a hexagonal long shaft 103; A sliding sleeve 3 is slidably sleeved on the top section of the handle tube 1. The cross-section of the sliding sleeve 3 is in an I-shaped structure. And a positioning sleeve 5 is slidably sleeved on the lower half section of the handle tube 1. A tightening bolt is screwed through the positioning sleeve 5; Two mounting plates 4 are slidably sleeved on the two hexagonal short shafts 102 in opposite directions. A row of laser rangefinders 401 are evenly spaced and screwed through and installed on the two mounting plates 4. And the two rows of laser rangefinders 401 are electrically connected to the controller 2; Two pull rods 501 are symmetrically rotatably connected to the circumferential end surface of the positioning sleeve 5. The tail ends of the two pull rods 501 are correspondingly rotatably connected to the head end sections of the two hexagonal long shafts 103; The driving sleeve 302 is located on the pipe section at the bottom side of the positioning sleeve 5. And when the two hexagonal long shafts 103 are horizontally unfolded, the driving sleeve 302 slides upward to abut against the positioning sleeve 5; A triangular stop bar 105 is welded to the tail end of each of the two hexagonal short shafts 102. The tail end sections of the two hexagonal long shafts 103 swing downward to abut against the two triangular stop bars 105. The two triangular stop bars 105 can limit the two hexagonal long shafts 103 to prevent them from rotating with interference when swinging downward and unfolding and being unable to be directly butted with the two hexagonal long shafts 103 to form two complete hexagonal track shafts for the two mounting plates 4 to slide on; Two vertical pull shafts 301 are symmetrically welded to the bottom of the sliding sleeve 3. The two vertical pull shafts 301 are correspondingly penetrated and matched with the positioning sleeve 5. And a driving sleeve 302 is welded and fixed to the bottom of the two vertical pull shafts 301. The positioning sleeve 5 can be fixed by the tightening bolt thereon to keep the two hexagonal long shafts 103 in the horizontal unfolding and contracting use states; Two vertical support connecting shafts 502 are symmetrically welded to the bottom of the positioning sleeve 5. And a force transmission ring 503 is welded to the bottom of the two vertical support connecting shafts 502. The two pull rods 501, the two hexagonal long shafts 103 and the positioning sleeve 5 together form a crank-rocker mechanism. By sliding the positioning sleeve 5 up and down through this mechanism, the two hexagonal long shafts 103 can be driven to swing and unfold and contract.

[0029] As Figure 2 shown, a pressing disc 104 is welded and fixed to the bottom of the head end of each of the two hexagonal long shafts 103. And a rubber pad is provided at the bottom of each of the two pressing discs 104. The two hexagonal long shafts 103 are rotatably installed and can swing upward and contract when idle to reduce the occupation of the support space. And the two mounting plates 4 are slidably installed and can slide and abut against the pressing ring 101 when idle to further reduce the occupation of the support space, making it more convenient for transportation and storage.

[0030] As Figure 3As shown in the figure, two connecting rods 303 are symmetrically and rotatably connected to the circumferential outer wall of the driving sleeve 302. The tails of the two connecting rods 303 are correspondingly rotatably connected to the middle sections of the two mounting plates 4. The driving sleeve 302, the two connecting rods 303, and the two mounting plates 4 are jointly connected to form a double-crank slider mechanism. By sliding the sliding sleeve 3 up and down through this mechanism, the two mounting plates 4 can be driven to slide left and right reciprocally along the two hexagonal short shafts 102 and the two hexagonal long shafts 103. Moreover, the reciprocating sliding of the two mounting plates 4 can drive the two rows of laser rangefinders 401 to perform flatness detection on the building surface of the roof. Therefore, the present invention only needs to stand still and perform a simple up-and-down sliding movement of the hand (operating the sliding sleeve 3) to complete the detection of the roof building surface. Compared with the traditional measuring instrument that needs to hold the measuring instrument body and vertically press the measuring component against the wall of the roof, and also needs to cooperate with a walking movement to drive the measuring component to slide along the wall to complete the measurement, it can save the trouble of walking movement and vertically holding and pressing the measuring component, greatly simplifying the measurement operation steps, being convenient and fast to use, and saving time and effort.

[0031] As Figure 1 shown in the figure, the force transmission ring 503 is in sliding fit with the bottom section of the handle tube 1, and the force transmission ring 503 slides upward to abut against the driving sleeve 302. When the positioning sleeve 5 slides upward to contract the two hexagonal long shafts 103, it can drive the force transmission ring 503 to slide upward to abut against the driving sleeve 302, enabling the driving sleeve 302 to be linked and positioned by the positioning sleeve 5, so that the two mounting plates 4 are maintained in the use state of inner sliding contraction. This saves the trouble of additionally setting positioning and holding components for the two mounting plates 4 and eliminates the trouble of loosening and tightening the positioning and holding components, simplifies the folding and unfolding operation steps, is convenient and efficient to use. It should be noted that when the two hexagonal long shafts 103 are swung upward and contracted, the two mounting plates 4 need to be slid onto the two hexagonal short shafts 102 first to avoid the two mounting plates 4 and the two connecting rods 303 from blocking and interfering with the swinging and folding of the two hexagonal long shafts 103.

[0032] Working principle: When in use, the whole measuring instrument is inverted and the handle tube 1 is held by both hands to press the pressure ring 101 and the two pressure plates 104 against and fixed to the wall of the roof. Then, the driving sleeve 302 is slid up and down. Since the driving sleeve 302, the two connecting rods 303, and the two mounting plates 4 are jointly connected to form a double-crank slider mechanism, sliding the sliding sleeve 3 up and down can drive the two mounting plates 4 to slide left and right reciprocally along the two hexagonal short shafts 102 and the two hexagonal long shafts 103. Moreover, the reciprocating sliding of the two mounting plates 4 can drive the two rows of laser rangefinders 401 to perform flatness detection on the building surface of the roof.

[0033] After the detection is completed, first slide the sliding sleeve 3 upward to drive the two mounting plates 4 to slide inward and abut against the pressure ring 101, and then slide the positioning sleeve 5 upward. Since the two pull rods 501, the two hexagonal long axes 103 and the positioning sleeve 5 are connected together to form two crank rocker mechanisms, sliding the positioning sleeve 5 upward can drive the two hexagonal long axes 103 to swing upward and shrink, and the positioning sleeve 5 can be fixed by the tightening bolts thereon, so that the two hexagonal long axes 103 are kept in a horizontally expanded and retracted use state. In addition, when the positioning sleeve 5 slides upward and shrinks the two hexagonal long axes 103, it can drive the force transmission ring 503 to slide upward and abut against the drive sleeve 302, so that the drive sleeve 302 can be positioned in conjunction with the positioning sleeve 5, so that the two mounting plates 4 are kept in an inward sliding and shrinking use state.

[0034] Detection principle: The two rows of laser rangefinders 401 can measure the distance of the potholes on the roof wall in real time during the reciprocating sliding process, and transmit the measurement data to the controller 2. The controller 2 can compare the measurement data with the preset standard distance measurement value. If the actual distance measurement value is lower than the preset standard distance measurement value, it means that the wall surface is qualified. Otherwise, it is unqualified and an alarm is prompted through the Fengming component on the controller 2.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A flatness measuring device for construction, characterized in that: Flatness measuring device, including a handle tube (1), a controller (2) is fixedly installed at the tail end of the handle tube (1) by screwing, and a pressure ring (101) is welded at the head end of the handle tube (1), and a rubber ring is arranged at the bottom of the pressure ring (101); two hexagonal short shafts (102) are symmetrically welded on the circumferential outer wall of the pressure ring (101), and a hexagonal long shaft (103) is rotatably connected to the tail end of each of the two hexagonal short shafts (102); a sliding sleeve (3) is slidably sleeved on the top section of the handle tube (1), the cross section of the sliding sleeve (3) is in an I-shaped structure, and a positioning sleeve (5) is slidably sleeved on the lower half section of the handle tube (1), and a tightening bolt is screwed through the positioning sleeve (5); two mounting plates (4) are slidably sleeved on the two hexagonal short shafts (102) in opposite directions, and a row of laser rangefinders (401) are screwed and installed through the two mounting plates (4) at equal intervals, and the two rows of laser rangefinders (401) are electrically connected to the controller (2); two vertical pull shafts (301) are symmetrically welded at the bottom of the sliding sleeve (3), the two vertical pull shafts (301) are correspondingly penetrated and matched with the positioning sleeve (5), and a driving sleeve (302) is welded and fixed at the bottom of the two vertical pull shafts (301); two vertical support connecting shafts (502) are symmetrically welded at the bottom of the positioning sleeve (5), and a force transmission ring (503) is welded at the bottom of the two vertical support connecting shafts (502); two pull rods (501) are symmetrically rotatably connected to the circumferential end surface of the positioning sleeve (5), and the tail ends of the two pull rods (501) are correspondingly rotatably connected to the head end sections of the two hexagonal long shafts (103); a triangular stop bar (105) is welded at the tail end of each of the two hexagonal short shafts (102), and the tail end sections of the two hexagonal long shafts (103) swing downward and abut against the two triangular stop bars (105); two connecting rods (303) are symmetrically rotatably connected to the circumferential outer wall of the driving sleeve (302), and the tail ends of the two connecting rods (303) are correspondingly rotatably connected to the middle sections of the two mounting plates (4); the force transmission ring (503) is slidably matched with the bottom section of the handle tube (1), and the force transmission ring (503) slides upward and abuts against the driving sleeve (302); the driving sleeve (302) is located on the tube section at the bottom side of the positioning sleeve (5), and when the two hexagonal long shafts (103) are horizontally expanded, the driving sleeve (302) slides upward and abuts against the positioning sleeve (5).

2. The flatness measuring device for construction according to claim 1, characterized in that: A pressure plate (104) is welded and fixed at the bottom of the head end of each of the two hexagonal long shafts (103), and a rubber pad is arranged at the bottom of each of the two pressure plates (104).

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