Wall hollowing detection device

Abstract

The utility model belongs to the field of wall hollowing detection, and discloses a wall hollowing detection device, which comprises a handle, a rotating shaft is arranged at the end part of the handle, and a roller is sleeved on the rotating shaft; the knocking unit comprises a mounting ring and a knocking assembly, the mounting ring sleeves the rotating shaft, the knocking assembly comprises a connecting cylinder, a connecting rod, a connecting block, a knocking spring and a knocking ball, the connecting cylinder is fixed to the outer wall of the mounting ring, the connecting rod is slidably inserted into the end, away from the mounting ring, of the connecting cylinder, and the connecting block is slidably matched in the connecting cylinder; the inner diameter of the connecting cylinder is larger than the outer diameter of the connecting rod, the knocking spring is mounted in the connecting cylinder and located on the side, close to the mounting ring, of the connecting block, and the knocking ball is mounted at the end, away from the connecting block, of the connecting rod. The connecting rod is driven by the connecting block to slide in the connecting cylinder, so that the knocking ball can give way to rolling of the roller, the knocking spring can reset the knocking ball, and the device can perform normal continuous detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of wall hollow detection, and particularly relates to a wall hollow detection device. Background Art

[0002] Wall hollowing is a common problem in construction. Hollowing is caused by the presence of air in the original masonry and plaster layer. Its existence may affect the structural stability and durability of the building. Therefore, after the wall is completed, a hollow detection device is usually used to detect the wall for hollows to eliminate potential safety hazards.

[0003] The Chinese patent with the publication number of CN220913048U discloses a ceramic tile hollow detection device, which includes a supporting mechanism. The supporting mechanism includes an inclined rod. The top end of the inclined rod is fixedly provided with a handrail. The conduit is fixedly connected to the inclined rod through a fixing buckle. A marking mechanism is arranged on the inclined rod. The marking mechanism includes a conduit. A liquid storage ball is arranged at the top of the conduit. A nozzle is arranged at the bottom of the conduit. A moving mechanism is arranged on one side of the bottom of the inclined rod. A detection mechanism is arranged on one side of the moving mechanism. By arranging a marking mechanism on the supporting mechanism, and squeezing the liquid storage ball by hand, the marking pigment inside the liquid storage ball flows into the conduit and finally sprays out from the nozzle, so that the hollow ceramic tiles can be marked in time, without the need for workers to rely solely on memory or bend down to record with a marker pen, which saves time and effort.

[0004] However, in the actual use process, the roller needs to move closely against the wall to drive the ball to rotate, and the ball needs to collide with the wall to conduct hollow detection, that is, the distance from the outer edge of the ball to the rotation center needs to be greater than the distance from the outer edge of the roller to the rotation center to meet the detection conditions. When the ball continues to push the handrail after colliding with the wall, because the rotation diameter of the ball is greater than the rotation diameter of the roller, the phenomenon that the ball is close to the wall and the roller is separated from the wall will occur. At this time, the roller cannot normally drive the ball to rotate, that is, the above device cannot be used continuously and normally. Content of the Utility Model

[0005] The utility model aims to provide a wall hollow detection device to solve the problem that the existing detection device cannot be used continuously and normally mentioned above.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A wall hollow detection device includes

[0007] a handle, a rotating shaft is rotatably installed at the end, a roller is sleeved on the rotating shaft, and the roller rotates synchronously with the rotating shaft;

[0008] The knocking unit includes a mounting ring and a plurality of knocking components distributed at intervals in the circumferential direction of the mounting ring. The mounting ring is sleeved on the rotating shaft. Each knocking component includes a connecting cylinder, a connecting rod, a connecting block, a knocking spring and a knocking ball. The connecting cylinder is fixed on the outer wall of the mounting ring. The connecting rod is slidably inserted into one end of the connecting cylinder away from the mounting ring. The connecting block is slidably fitted in the connecting cylinder and is connected to the connecting rod. The inner diameter of the connecting cylinder is larger than the outer diameter of the connecting rod. The knocking spring is installed in the connecting cylinder and is located on the side of the connecting block close to the mounting ring. The knocking ball is installed at one end of the connecting rod away from the connecting block.

[0009] The principle and effect of this technical solution:

[0010] 1. By holding the handle and driving the roller to roll on the wall, the roller can drive the rotating shaft to rotate synchronously. Through the synchronous rotation of the rotating shaft, the knocking unit installed on the rotating shaft can intermittently knock and detect the wall.

[0011] 2. By installing the mounting ring on the rotating shaft, the rotation of the rotating shaft can drive the mounting ring and the knocking components to rotate synchronously. And through the settings of the connecting block, the connecting rod and the connecting cylinder, after the knocking ball collides and knocks on the wall surface during rotation, with the continuous rotation of the roller (continuous rotation of the rotating shaft), the knocking ball can receive an oblique supporting force from the wall surface, so that the knocking ball drives the connecting rod and the connecting block to move towards the connecting cylinder, thereby shortening the distance between the roller and the center of the rotating shaft, enabling the roller to continue to move. And under the action of the knocking spring, when the knocking ball leaves the wall, the rebounding force of the knocking spring will drive the knocking ball to reset, so that the next knocking operation can be carried out normally. Furthermore, the device can continuously and stably detect the wall by knocking without interference or other phenomena that hinder normal use.

[0012] The present utility model is further configured as: the cross-section of the connecting rod is square, and a semi-circular shell is rotatably sleeved on the knocking ball, and the semi-circular shell is fixed to the connecting rod.

[0013] The principle and effect of this technical solution: By making the connecting rod square, the connecting rod cannot rotate relative to the connecting cylinder. And through the setting of the semi-circular shell and the setting that the knocking ball can rotate relative to the semi-circular shell, after the knocking ball contacts the wall surface, the friction between the knocking ball and the wall surface can be reduced by rolling, so that the friction between the knocking ball and the wall surface is smaller (after the knocking ball collides with the wall surface, as the roller continues to move, the knocking ball will drive the connecting block to compress the knocking spring under the action of the external pressure, shortening the distance from the knocking ball to the center of the rotating shaft. At this time, the knocking ball can move by rolling rather than sliding friction, so the resistance is smaller), protecting the knocking ball and enabling the knocking ball to have a longer service life.

[0014] The present utility model is further configured such that: a sponge pad is fixed inside the connecting cylinder, and the sponge pad is located on the side of the connecting block close to the knocking ball.

[0015] Principle and effect of this technical solution: The setting of the sponge pad enables the knocking ball to leave the wall. At this time, the knocking spring loses the external pressure. Then, when the connecting block is pushed to reset, the connecting block can reduce the collision force on the connecting cylinder by contacting the sponge pad, thereby extending the service life of the knocking unit.

[0016] The present utility model is further configured such that: it further includes a marking mechanism. A semi-circular outer shell is sleeved on the roller, and the outer shell is connected to the handle. The marking mechanism includes a marking unit and a driving unit. The marking unit includes a mounting frame, a marking pen, a driving plate, a mounting plate, a driving rod group, and a reset member. The mounting frame is fixed to the side of the outer shell away from the mounting ring. The cross-section of the mounting frame is in a "U" shape. The driving rod group is slidably inserted inside the mounting frame. The driving plate is fixed to the top of the driving rod group. The mounting plate is installed at the bottom of the driving rod group, and the top of the mounting plate abuts against the mounting frame. The marking pen is installed at the bottom of the mounting plate. The driving unit is connected to the rotating shaft and is used to drive the driving plate to slide relative to the mounting frame. The reset member is used to reset the driving plate.

[0017] Principle and effect of this technical solution: Through the settings of the mounting frame, the driving rod group, the driving plate, and the mounting plate, the marking pen can be fixed below the mounting plate. The movement of the driving rod group is restricted by the mounting frame, and the stroke is restricted by the mounting plate, the driving plate, and the reset member. By the operation of the rotating shaft to drive the driving unit to move, the driving unit controls the position of the driving plate, and thus the driving plate can indirectly control the position of the marking pen relative to the wall surface, thereby completing the marking work.

[0018] The present utility model is further configured such that: the driving unit includes a driving ring, a pressing plate, a limiting block, and a plurality of driving components arranged at intervals circumferentially around the driving ring. The driving ring is rotatably installed on the outer wall of the side of the outer shell away from the mounting ring, and the driving ring is coaxially arranged with the rotating shaft. The inner diameter of the driving ring is larger than the outer diameter of the rotating shaft. The pressing plate is fixed to the outer wall of the driving ring, and the side wall of the pressing plate abuts against the driving plate. The limiting block is fixed to the outer shell, and the limiting block abuts against the side of the pressing plate away from the driving plate. A torsion spring is fixed to the side of the driving ring close to the outer shell, and one end of the torsion spring is connected to the outer shell. The driving component includes a driving plate, a driven plate, a sliding block, a driving spring, and a stop block. A sunk groove is formed on the driving ring. The sliding block is slidably fitted in the sunk groove. The stop block is installed at one end of the sunk groove away from the rotating shaft. The driving spring is installed in the sunk groove and is located between the stop block and the sliding block. The driven plate is fixed to the side of the sliding block away from the stop block, and the driven plate extends to the inside of the driving ring. The driving plate is fixed to the rotating shaft, and a guiding sliding surface is formed on one side of the driven plate.

[0019] Principle and effect of this technical solution: When the device is detecting (taking Figure 1When taking [reference standard], the roller rotates counterclockwise). The rotation of the rotating shaft can drive the active plate to rotate. The rotation of the active plate will cause the sliding surface of the active plate to abut against the sliding surface of the driven plate. Since the pressing plate is limited by the limiting block, the driving ring cannot rotate counterclockwise. At this time, when the rotating shaft continues to rotate, the active plate presses the sliding surface of the driven plate, so that the driven plate drives the slider to slide into the sinking groove, and the driving spring is compressed, so as to make way for the rotation of the active plate. At this time, the pressing plate will not press the driving plate, that is, when the knocking unit detects normally, the marking mechanism will not mark. And when the marking mechanism detects an empty drum, through the rotary roller (taking Figure 1 When taking [reference standard], that is, making the roller rotate clockwise). At this time, the active plate will rotate to abut against the driven plate. Since there is no sliding surface, the active plate cannot make way for its rotation by pressing the driven plate to move. At this time, when the rotating shaft continues to rotate, it will cause the active plate to drive the driven plate to rotate clockwise, that is, the driven plate drives the driving ring to rotate clockwise, so that the driving ring drives the pressing plate to rotate, and then the pressing plate presses the driving plate, so that the marking pen approaches the wall surface. After the roller continues to move normally along the wall surface, under the action of the restoring force of the torsion spring, it will drive the driving ring to reset, so that the pressing plate leaves the driving plate, so that the marking pen can leave the wall surface.

[0020] The present utility model is further provided that: the driving rod group includes a driving cylinder, a moving block and a plug rod. The driving cylinder is installed at the bottom of the driving plate. The moving block is slidably matched in the driving cylinder. The plug rod is slidably inserted at the bottom of the driving cylinder, and the plug rod is connected to the moving block. The outer diameter of the plug rod is smaller than the inner diameter of the driving cylinder. The bottom of the plug rod passes through the mounting bracket and is connected to the mounting plate. The reset member includes a first reset spring and a second reset spring. The first reset spring is sleeved outside the driving cylinder and is located between the mounting bracket and the driving plate. The second reset spring is installed inside the driving cylinder and is located between the moving block and the driving plate.

[0021] The principle and effect of this technical solution: By making the moving block slide in the driving cylinder, the movement of the plug rod will be restricted by the movement of the moving block. And the second reset spring is installed above the moving block. Then, as the pressing plate drives the driving plate to press down, the driving plate will drive the driving cylinder to move downward against the first reset spring. At this time, the elastic force of the second reset spring will drive the moving plate to drive the plug rod to move downward synchronously until the marking pen contacts the wall for marking. Then, as the driving cylinder continues to move downward, at this time, the marking pen cannot continue to approach the wall surface. Then the moving block will press the second reset spring. At this time, the pressing plate can continue to press the driving plate to move a certain distance, so that the marking pen can mark the appearance of eyes on the wall surface as the roller rolls. And after removing the pressing of the pressing plate, under the action of the restoring force of the first reset spring and the second reset spring, the marking pen returns to its original position, and the driving cylinder returns to its original position, so as to facilitate the next marking work.

[0022] The present utility model is further provided that: the handle is a telescopic handle.

[0023] Principle and effect of this technical solution: By setting the handle as a telescopic handle, the length of the device can be adjusted according to the usage requirements, which is convenient for carrying and has a wider scope of application. Description of the Drawings

[0024] Figure 1 is the front view of the present utility model;

[0025] Figure 2 is Figure 1 the enlarged view of the knocking component in

[0026] Figure 3 is Figure 1 the enlarged view of the back of

[0027] Figure 4 is Figure 3 the enlarged view of the driving unit in

[0028] Figure 5 is Figure 3 the structural diagram of the non-driving ring and non-identification unit in

[0029] Figure 6 is Figure 3 the enlarged view of the identification unit in Detailed Implementation Manner

[0030] The following further elaborates on the present utility model in conjunction with the drawings and the implementation manner:

[0031] The reference numerals in the drawings of the specification include:

[0032] 101, handle; 102, rotating shaft; 103, roller; 104, housing;

[0033] 201, mounting ring; 202, connecting cylinder; 203, connecting rod; 204, connecting block; 205, knocking spring; 206, knocking ball; 207, semi-circular shell; 208, sponge pad;

[0034] 301, mounting bracket; 302, marking pen; 303, driving plate; 304, mounting plate;

[0035] 401, driving cylinder; 402, moving block; 403, insertion rod; 404, first return spring; 405, second return spring;

[0036] 501, driving ring; 502, pressing plate; 503, limiting block; 504, sinking groove; 505, torsion spring;

[0037] 601, active plate; 602, driven plate; 603, slider; 604, driving spring; 605, stop block.

[0038] As shown in the attached Figures 1-6 figure, the utility model discloses a wall hollowing detection device, which includes a handle 101, a knocking unit and an identification mechanism. The handle 101 is a telescopic handle. A rotating shaft 102 is rotatably installed at the end of the handle 101. A roller 103 is sleeved on the rotating shaft 102. The roller 103 rotates synchronously with the rotating shaft 102. A semi-circular shell 104 is sleeved on the roller 103. The shell 104 is connected to the handle 101, that is, the handle 101 can drive the shell 104 to rotate or move synchronously.

[0039] The knocking unit includes an installation ring 201 and four knocking components spaced circumferentially on the installation ring 201. The installation ring 201 is sleeved on the rotating shaft 102 and rotates synchronously with the rotating shaft 102. The knocking component includes a connecting cylinder 202, a connecting rod 203, a connecting block 204, a knocking spring 205 and a knocking ball 206. The connecting cylinder 202 is fixed on the outer wall of the installation ring 201. The connecting rod 203 is slidably inserted into the end of the connecting cylinder 202 away from the installation ring 201. The connecting block 204 is slidably fitted in the connecting cylinder 202 and is connected to the connecting rod 203. The inner diameter of the connecting cylinder 202 is larger than the outer diameter of the connecting rod 203. The knocking spring 205 is installed in the connecting cylinder 202 and is located on the side of the connecting block 204 close to the installation ring 201. The cross section of the connecting rod 203 is square. A semi-circular shell 207 is rotatably sleeved on the knocking ball 206. The semi-circular shell 207 is fixed to the connecting rod 203. Among them, when the knocking spring 205 is at its maximum elongation length, the maximum rotational distance from the outer edge of the knocking spring 205 to the center of the rotating shaft 102 is greater than the distance from the outer edge of the roller 103 to the rotation center of the rotating shaft 102. A sponge pad 208 is fixed in the connecting cylinder 202 and is located on the side of the connecting block 204 close to the knocking ball 206.

[0040] The identification mechanism includes an identification unit and a driving unit. The identification unit includes a mounting bracket 301, an identification pen 302, a driving board 303, a mounting plate 304, a driving rod group and a reset member. The mounting bracket 301 is fixed to the side of the housing 104 away from the mounting ring 201. The cross-section of the mounting bracket 301 is in a "U" shape. The driving rod group includes a driving cylinder 401, a moving block 402 and a plug rod 403. The driving cylinder 401 is installed at the bottom of the driving board 303. The moving block 402 is slidably fitted inside the driving cylinder 401. The plug rod 403 is slidably inserted into the bottom of the driving cylinder 401, and the plug rod 403 is connected to the moving block 402. The outer diameter of the plug rod 403 is smaller than the inner diameter of the driving cylinder 401. The bottom of the plug rod 403 passes through the mounting bracket 301 and is slidably inserted into the mounting bracket 301, and the plug rod 403 is connected to the mounting plate 304. The reset member includes a first reset spring 404 and a second reset spring 405. The first reset spring 404 is sleeved outside the driving cylinder 401 and is located between the mounting bracket 301 and the driving board 303. The second reset spring 405 is installed inside the driving cylinder 401 and is located between the moving block 402 and the driving board 303. The mounting plate 304 is installed at the bottom of the driving rod group, and the top of the mounting plate 304 abuts against the mounting bracket 301. The identification pen 302 is installed at the bottom of the mounting plate 304 (which can be installed in a detachable manner such as bonding).

[0041] The driving unit includes a driving ring 501, a pressing plate 502, a limiting block 503 and four driving components circumferentially and spaced apart around the driving ring 501. The driving ring 501 is rotatably installed on the outer wall of the side of the housing 104 away from the mounting ring 201, and the driving ring 501 is coaxially arranged with the rotating shaft 102. The inner diameter of the driving ring 501 is larger than the outer diameter of the rotating shaft 102. The pressing plate 502 is fixed to the outer wall of the driving ring 501, and the side wall of the pressing plate 502 abuts against the driving board 303. The limiting block 503 is fixed to the housing 104, and the limiting block 503 abuts against the side of the pressing plate 502 away from the driving board 303. A torsion spring 505 is fixed to the side of the driving ring 501 close to the housing 104. One end of the torsion spring 505 is connected to the housing 104. The driving component includes a driving plate 601, a driven plate 602, a slider 603, a driving spring 604 and a stop block 605. A counterbore 504 is formed on the driving ring 501. The slider 603 is slidably fitted inside the counterbore 504. The stop block 605 is installed at one end of the counterbore 504 away from the rotating shaft 102. The driving spring 604 is installed inside the counterbore 504 and is located between the stop block 605 and the slider 603. The driven plate 602 is fixed to the side of the slider 603 away from the stop block 605, and the driven plate 602 extends to the inside of the driving ring 501. The driving plate 601 is fixed to the rotating shaft 102. One side of the driven plate 602 is provided with a guiding sliding surface.

[0042] Among them, when the pressing plate 502 presses the driving plate 303 to the maximum compression position, the pressing plate 502 does not disengage from the driving plate 303. At this time, the pressing plate 502 cannot continue to rotate, so that the roller 103 cannot continue to rotate back, and the marking ends here.

[0043] The above are only embodiments of the present invention. Specific technical solutions or common knowledge such as well-known characteristics in the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A wall hollowing detection device, characterized in that: include A handle, the end of which is rotatably mounted with a rotating shaft, the rotating shaft is sleeved with a roller, and the roller rotates synchronously with the rotating shaft; A knocking unit comprises a mounting ring and a plurality of knocking components spaced apart around the mounting ring, wherein the mounting ring is sleeved on the rotating shaft, and the knocking component comprises a connecting tube, a connecting rod, a connecting block, a knocking spring and a knocking ball, wherein the connecting tube is fixed on the outer wall of the mounting ring, the connecting rod is slidably inserted into the end of the connecting tube away from the mounting ring, the connecting block is slidably fitted in the connecting tube, and the connecting block is connected to the connecting rod, the inner diameter of the connecting tube is larger than the outer diameter of the connecting rod, the knocking spring is installed in the connecting tube and is located on a side of the connecting block close to the mounting ring, and the knocking ball is installed at the end of the connecting rod away from the connecting block.

2. A wall hollowing detection device as claimed in claim 1, characterized in that: The cross section of the connecting rod is square, and the knocking ball is rotatably sleeved with a semicircular shell, which is fixed to the connecting rod.

3. A wall hollowing detection device as claimed in claim 1, characterized in that: A sponge pad is fixed in the connecting tube, and the sponge pad is located at a side of the connecting block close to the knocking ball.

4. A wall hollowing detection device as claimed in claim 1, characterized in that: It also includes an identification mechanism, the roller is covered with a semicircular shell, the shell is connected to the handle, the identification mechanism includes an identification unit and a drive unit, the identification unit includes a mounting frame, a marking pen, a drive plate, a mounting plate, a drive rod group and a reset member, the mounting frame is fixed to the side of the shell away from the mounting ring, the cross-section of the mounting frame is "U"-shaped, the drive rod group is slidably inserted into the inner side of the mounting frame, the drive plate is fixed to the top of the drive rod group, the mounting plate is installed at the bottom of the drive rod group, and the top of the mounting plate is abutted against the mounting frame, the marking pen is installed at the bottom of the mounting plate, the drive unit is connected to the rotating shaft, and is used to drive the drive plate to slide relative to the mounting frame, and the reset member is used to reset the drive plate.

5. A wall hollowing detection device as claimed in claim 4, characterized in that: The driving unit comprises a driving ring, a pressure plate, a limit block and a plurality of driving components arranged at intervals around the driving ring in the circumferential direction. The driving ring is rotatably mounted on the outer wall of the housing away from the mounting ring, and the driving ring is coaxially arranged with the rotating shaft. The inner diameter of the driving ring is larger than the outer diameter of the rotating shaft. The pressure plate is fixed on the outer wall of the driving ring, and the side wall of the pressure plate abuts against the driving plate. The limit block is fixed on the housing, and the limit block abuts against the side of the pressure plate away from the driving plate. The driving ring is fixed on the side close to the housing. A torsion spring is fixed, one end of which is connected to the housing, the driving assembly includes an active plate, a driven plate, a slider, a driving spring and a block, a groove is provided on the driving ring, the slider is slidably fitted in the groove, the block is installed at one end of the groove away from the rotating shaft, the driving spring is installed in the groove and is located between the block and the slider, the driven plate is fixed to a side of the slider away from the block, and the driven plate extends to the inner side of the driving ring, the active plate is fixed on the rotating shaft, and a guide sliding surface is formed on one side of the driven plate.

6. A wall hollowing detection device as claimed in claim 4, characterized in that: The driving rod group includes a driving cylinder, a moving block and an insertion rod, the driving cylinder is installed at the bottom of the driving plate, the moving block is slidably fitted in the driving cylinder, the insertion rod is slidably inserted into the bottom of the driving cylinder, and the insertion rod is connected to the moving block, the outer diameter of the insertion rod is smaller than the inner diameter of the driving cylinder, the bottom of the insertion rod passes through the mounting frame and is connected to the mounting plate, the reset member includes a first reset spring and a second reset spring, the first reset spring is sleeved on the outside of the driving cylinder and is located between the mounting frame and the driving plate, and the second reset spring is installed in the driving cylinder and is located between the moving block and the driving plate.

7. A wall hollowing detection device according to claim 1, characterized in that: The handle is a retractable handle.

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