House crack measuring device based on safety evaluation system

Abstract

The utility model relates to the technical field of building crack measurement, and particularly discloses a house crack measuring device based on a safety evaluation system, which comprises a shell, a square groove is arranged in the shell, an anti-collision detection mechanism is fixedly arranged on the side wall of the square groove, the anti-collision detection mechanism comprises a limiting plate, and a screw rod is rotatably arranged between the square groove and the limiting plate. A motor is fixedly installed on the side wall of the shell, an output shaft of the motor and a lead screw are fixedly installed, a measuring plate is installed on the circumferential surface of the lead screw in a threaded mode, and when the measuring plate slides towards the tail end of a crack on the other side on the lead screw, a pressing plate will firstly make contact with the tail end of the crack; and when the probe of the pressure sensor is compressed to a limited position, the motor is turned off, the situation that the motor still rotates to drive the measuring plate to collide with the end of the crack, and consequently the crack is enlarged is avoided, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building crack measurement, in particular to a house crack measurement device based on a safety evaluation system. Background Art

[0002] There can be many reasons for cracks in a house, mainly including foundation problems and natural factors. Cracks in a house are one of the important indicators of structural safety. The safety evaluation system will consider the cracks in the house structure, the type, size, location of the cracks and other impacts on the structure, and is used to evaluate the structural safety of the house. The safety evaluation system can provide maintenance and repair recommendations for cracks, analyze the cracks, evaluate the impact of the cracks on the house structure, and formulate corresponding maintenance and repair plans to ensure the safe use of the house.

[0003] At present, an existing device (such as patent number: CN218994202U) discloses a house crack measuring ruler. The device sets a measuring mechanism. When measuring the house crack, the fixed measuring plate is clamped on one side of the crack, and the servo motor is turned on to work. The servo motor drives the first rotating rod and the first winding disk to rotate, and the rope is retracted and released. The sliding plate and the mobile measuring plate are driven to move through the fixed connection between the rope and the fixed block. When moving to the other side of the crack, the infrared generator cooperates with the infrared receiver to measure the width of the house crack, which can automatically measure the house crack without the need for workers to hold a measuring tape for measurement. At the same time, the measurement accuracy can be increased, which is convenient for the budget plan of subsequent repairs.

[0004] However, in the process of implementing the above technical solution, it was found that there are at least the following technical problems: when the device measures the crack length, since there is no limit mechanism on the sliding plate, it can only rely on the sliding plate hitting the inner end of the wall crack to force the servo motor to stop working or the staff can observe the contact state between the sliding plate and the inner end of the crack with the naked eye, which can easily lead to inaccurate measurement or secondary damage to the crack, and its practicality needs to be improved. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a house crack measuring device based on a safety evaluation system, which solves the technical problem of insufficient practicability of the prior art devices.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A house crack measuring device based on a safety evaluation system comprises a shell, a scale mark is fixedly mounted on the upper end of the shell, handles are symmetrically fixedly mounted on the upper end of the shell, buttons are fixedly mounted on the upper ends of the two handles, a square groove is opened inside the shell, a through groove is penetrated through the inner wall of the square groove, and the through groove is located between the scale mark and the handle;

[0010] An anti-collision detection mechanism is fixedly installed on the side wall of the square groove;

[0011] The anti-collision detection mechanism includes a limit plate, a screw is rotatably installed between the square groove and the limit plate, a motor is fixedly installed on the side wall of the shell, the output shaft of the motor is rotatably installed with the shell, the output shaft of the motor is fixedly installed with the screw, and limit grooves are symmetrically arranged on the side wall of the square groove. The anti-collision detection mechanism also includes a measuring plate, a slider, an indicator mark, a pressure sensor, a slide groove, a pressing plate and an auxiliary reset spring.

[0012] Preferably: the measuring plate is threadedly installed on the circumferential surface of the screw rod, the two limit grooves are opened on both sides of the square groove, the two sliders are slidably installed inside the measuring plate, and the two sliders are fixedly installed on the measuring plate.

[0013] Preferably: the indicator mark is fixedly installed at the upper end of the measuring plate, the indicator mark passes through the through slot and is exposed above the shell, the indicator mark is matched with the scale mark, the pressure sensor is fixedly installed inside the measuring plate, the probe of the pressure sensor is exposed outside the measuring plate, the probe of the pressure sensor is spring compression type, and the two slide grooves are both opened inside the measuring plate.

[0014] Preferably: the two pressing plates are both slidably installed between the slide grooves, the two auxiliary reset springs are both symmetrically fixedly installed between the measuring plate and the pressing plate, the probe of the pressure sensor is fitted with the pressing plate, the pressure sensor is located between the auxiliary reset springs, and the indicator mark is parallel to the pressing plate.

[0015] (III) Beneficial effects

[0016] 1. By setting up an anti-collision detection mechanism, when the measuring plate slides on the screw rod toward the end of the crack on the other side, the pressing plate will first contact the end of the crack, and then the pressing plate will slide inside the slide groove toward the side of the limit plate and compress the auxiliary reset spring and the probe of the pressure sensor. When the probe of the pressure sensor is compressed to the limit, the motor will be turned off, so that the measuring plate of the device can automatically turn off the motor after detecting the length of the crack, so as to avoid the measurement plate from colliding with the end of the crack and causing the crack to expand. At the same time, the probe of the pressure sensor can be indirectly pushed by the measuring plate to protect the probe of the pressure sensor, thereby improving practicality.

[0017] Second, by using the handle to press one side of the measuring plate on the shell against the crack wall, the staff can then press the button on the handle to allow the motor to receive the signal and drive the screw rod to rotate between the limit plate and the square groove and to transmit threaded transmission with the measuring plate, thereby driving the measuring plate to move to the other end of the crack, thereby completing the measurement of the crack, and knowing the length of the crack by the distance the indicator moves on the scale mark. This is relatively convenient, and the overall structure of the device is simple, and it is installed in an embedded groove manner, so that the device can have a compact structure and reduce weight while ensuring the normal realization of the function, which is convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0019] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0020] Figure 2 It is a three-dimensional exploded structural diagram of the utility model;

[0021] Figure 3 It is a cross-sectional view of the shell of the utility model;

[0022] Figure 4 It is a cross-sectional view of the square groove of the utility model;

[0023] Figure 5 This is the exploded structural diagram of the measuring plate connection of the utility model.

[0024] Legend: 11. Housing; 12. Scale mark; 13. Handle; 14. Button; 15. Square groove; 16. Through groove; 17. Limit plate; 18. Screw rod; 19. Motor; 21. Limit groove; 22. Measuring plate; 23. Slider; 24. Indicator mark; 25. Pressure sensor; 26. Slide groove; 27. Press plate; 28. Auxiliary reset spring. DETAILED DESCRIPTION

[0025] The embodiment of the present application provides a house crack measuring device based on a safety evaluation system, which effectively solves the lack of practicality of the existing device. By setting up an anti-collision detection mechanism, when the measuring plate slides on the screw rod to the end of the crack on the other side, the pressing plate will first contact the end of the crack, and then the pressing plate will slide inside the slide groove to the side of the limit plate and compress the auxiliary reset spring and the probe of the pressure sensor. When the probe of the pressure sensor is compressed to the limit, the motor will be turned off, so that the measuring plate of the device can automatically turn off the motor after detecting the length of the crack, so as to avoid the motor still rotating to drive the measuring plate to collide with the end of the crack and cause the crack to expand, and at the same time indirectly push the pressure sensor through the measuring plate The probe of the pressure sensor can also be protected, thereby improving practicality. By picking up the handle, one side of the measuring plate on the shell is pressed against the crack wall on one side. Then the staff can press the button on the handle to make the motor receive the signal and drive the screw rod to rotate between the limit plate and the square groove and to transmit threaded transmission to the measuring plate, thereby driving the measuring plate to move to the other end of the crack, thereby completing the measurement of the crack. The length of the crack can be known by the distance between the indicator mark and the scale mark. It is more convenient, and the overall structure of the device is simple. It is installed in an embedded groove, so that the device can have a compact structure and reduce weight while ensuring the normal function, which is convenient for the staff to take.

[0026] Example

[0027] like Figure 1-Figure 5 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem of insufficient practicality of the existing device, and the overall idea is as follows:

[0028] In view of the problems existing in the prior art, the utility model provides a house crack measuring device based on a safety evaluation system, comprising a housing 11, a scale mark 12 is fixedly installed on the upper end of the housing 11, handles 13 are symmetrically fixedly installed on the upper end of the housing 11, buttons 14 are fixedly installed on the upper ends of the two handles 13, a square groove 15 is opened inside the housing 11, a through groove 16 is opened through the inner wall of the square groove 15, and the through groove 16 is located between the scale mark 12 and the handle 13;

[0029] An anti-collision detection mechanism is fixedly installed on the side wall of the square groove 15;

[0030] The anti-collision detection mechanism includes a limit plate 17, a screw rod 18 is rotatably installed between the square groove 15 and the limit plate 17, a motor 19 is fixedly installed on the side wall of the shell 11, the output shaft of the motor 19 is rotatably installed with the shell 11, the output shaft of the motor 19 is fixedly installed with the screw rod 18, and a limit groove 21 is symmetrically provided on the side wall of the square groove 15. The anti-collision detection mechanism also includes a measuring plate 22, a slider 23, an indicator mark 24, a pressure sensor 25, a slide groove 26, a pressing plate 27 and an auxiliary reset spring 28. By using the handle 13 to hold one side of the measuring plate 22 on the shell 11 close to the cracked wall, the worker can then The staff can press the button 14 on the handle 13, so that the motor 19 receives the signal and drives the screw rod 18 to rotate between the limit plate 17 and the square groove 15 and to transmit the threaded transmission with the measuring plate 22, thereby driving the measuring plate 22 to move to the other end of the crack, so as to complete the measurement of the crack, and the length of the crack can be known by the distance moved by the indicator mark 24 on the scale mark 12, which is more convenient, and the overall structure of the device is simple, and it is installed in a groove embedded manner, so that the device can have a compact structure and reduce weight while ensuring the normal realization of the function, which is convenient for the staff to use.

[0031] The measuring plate 22 is threadedly installed on the circumferential surface of the screw rod 18, two limit grooves 21 are opened on both sides of the square groove 15, two sliders 23 are slidably installed inside the measuring plate 22, and the two sliders 23 are fixedly installed with the measuring plate 22. The indicator mark 24 is fixedly installed at the upper end of the measuring plate 22, and the indicator mark 24 passes through the through groove 16 and is exposed above the shell 11. The indicator mark 24 is adapted to the scale mark 12. The pressure sensor 25 is fixedly installed inside the measuring plate 22, and the probe of the pressure sensor 25 is exposed outside the measuring plate 22. The probe of the pressure sensor 25 is spring compression type, and two slide grooves 26 are opened inside the measuring plate 22. Two pressing plates 27 are slidably installed between the slide grooves 26. Two auxiliary reset springs 28 are symmetrically fixedly installed between the measuring plate 22 and the pressing plate 27. The probe of the pressure sensor 25 fits with the pressing plate 27. The pressure sensor 2 5 is located between the auxiliary reset spring 28, and the indicator mark 24 is parallel to the pressing plate 27. By setting the anti-collision detection mechanism, when the measuring plate 22 slides on the screw rod 18 to the end of the crack on the other side, the pressing plate 27 will first contact the end of the crack, and then the pressing plate 27 slides inside the slide groove 26 to the side of the limit plate 17 and compresses the auxiliary reset spring 28 and the probe of the pressure sensor 25. When the probe of the pressure sensor 25 is compressed to the limit, the motor 19 will be turned off, so that the measuring plate 22 of the device can automatically turn off the motor 19 after the detection is completed to the length of the crack, so as to avoid the motor 19 still rotating to drive the measuring plate 22 to collide with the end of the crack and cause the crack to expand. At the same time, the probe of the pressure sensor 25 can be indirectly pushed by the measuring plate 22 to act, which can also play a protective role for the probe of the pressure sensor 25.

[0032] Working principle:

[0033] The first step is that when using, the staff picks up the handle 13 and puts one side of the measuring plate 22 on the housing 11 close to the crack wall on one side, and then the staff can press the button 14 on the handle 13, so that the motor 19 receives the signal and drives the screw rod 18 to rotate between the limit plate 17 and the square groove 15 and to generate threaded transmission with the measuring plate 22, so that the measuring plate 22 drives the indicator mark 24 to move on the through groove 16 and the scale mark 12 and drives the slider 23 on the measuring plate 22 to slide inside the limit groove 21;

[0034] In the second step, when the measuring plate 22 moves to the end of the other side of the crack, the pressing plate 27 will first contact the end of the crack. At this time, the pressing plate 27 will slide toward the side of the limit plate 17 inside the slide groove 26 and compress the auxiliary reset spring 28 and the probe of the pressure sensor 25. When the probe of the pressure sensor 25 is compressed to the limit, the motor 19 will be turned off. Then the staff can observe the distance that the indicator mark 24 moves on the scale mark 12, and then know the length of the wall crack. Then the staff can reset the motor 19.

[0035] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A house crack measuring device based on a safety evaluation system, comprising a housing (11), a scale mark (12) fixedly mounted on the upper end of the housing (11), handles (13) symmetrically fixedly mounted on the upper end of the housing (11), buttons (14) fixedly mounted on the upper ends of the two handles (13), characterized in that: A square groove (15) is provided inside the housing (11), and a through groove (16) is provided through the inner wall of the square groove (15); An anti-collision detection mechanism is fixedly installed on the side wall of the square groove (15); The anti-collision detection mechanism comprises a limit plate (17), a screw rod (18) is rotatably mounted between the square groove (15) and the limit plate (17), a motor (19) is fixedly mounted on the side wall of the housing (11), an output shaft of the motor (19) is rotatably mounted on the housing (11), the output shaft of the motor (19) is fixedly mounted on the screw rod (18), and a limit groove (21) is symmetrically provided on the side wall of the square groove (15).

2. A house crack measuring device based on a safety evaluation system as claimed in claim 1, characterized in that: The anti-collision detection mechanism also includes a measuring plate (22), a slider (23), an indicator mark (24), a pressure sensor (25), a slide groove (26), a pressing plate (27) and an auxiliary return spring (28); The measuring plate (22) is threadedly mounted on the circumferential surface of the screw rod (18).

3. A house crack measuring device based on a safety evaluation system as claimed in claim 2, characterized in that: The two limit grooves (21) are located on both sides of the square groove (15), and the two sliding blocks (23) are both slidably installed inside the measuring plate (22); Wherein, the two sliding blocks (23) are both fixedly mounted on the measuring plate (22).

4. A house crack measuring device based on a safety evaluation system as claimed in claim 3, characterized in that: The indicator mark (24) is fixedly installed at the upper end of the measuring plate (22); Wherein, the indicator mark (24) is matched with the scale mark (12).

5. A house crack measuring device based on a safety evaluation system as claimed in claim 4, characterized in that: The pressure sensor (25) is fixedly installed inside the measuring plate (22), and the probe of the pressure sensor (25) is a spring compression type; Wherein, the two slide grooves (26) are both opened inside the measuring plate (22).

6. A house crack measuring device based on a safety evaluation system as claimed in claim 5, characterized in that: The two pressing plates (27) are both slidably installed between the slide grooves (26), the two auxiliary reset springs (28) are both symmetrically fixedly installed between the measuring plate (22) and the pressing plate (27), and the probe of the pressure sensor (25) is in contact with the pressing plate (27); The pressure sensor (25) is located between the auxiliary return springs (28), and the indicator mark (24) is parallel to the pressing plate (27).

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