Wall surface flatness detection device

Abstract

The utility model discloses a wall surface flatness detection device, which relates to the field of wall surface detection, and comprises a guide rail which extends along a wall foot of a wall surface to be detected; the detection trolley is detachably matched with the guide rail, and a driving mechanism is arranged on the detection trolley; the detection assembly comprises a lifting mechanism, a base, a detection rod, a spring, a slide rheostat and a display, the lifting mechanism is connected with the base, the detection rod is arranged on the base in a horizontal sliding mode, the spring is arranged on the detection rod in a sleeving mode and connected with the detection rod and the base, one end of the detection rod is a detection end used for abutting against a to-be-detected wall, and the other end of the detection rod is a display. And the other end is fixedly connected with a slip sheet of the slide rheostat. The device reflects the flatness change condition of the wall surface by utilizing the electric signal change caused by the movement of the slide sheet of the slide rheostat during detection, is simple and convenient, has high detection precision, can limit the movement of the detection trolley through the guide rail, is not easy to deviate, and does not affect the accuracy of the detection result.

Description

Technical Field

[0001] The utility model relates to the field of wall surface detection, in particular to a wall surface flatness detection device. Background Art

[0002] After the wall construction is completed, it is generally necessary to test the flatness of the wall. The commonly used detection method in the prior art is to use a level ruler to test, that is, to stick a ruler with a level on the wall and observe the inclination of the bubble on the level to determine whether the wall is flat. This detection method is relatively rough and not intuitive, so the relevant technology has been improved.

[0003] For example, patents with application numbers CN202123035250.3 and CN201921654603.8 all provide a solution for detecting the flatness of a wall by drawing a trajectory on paper using a pen. Such solutions mainly include a horizontal moving mechanism, a vertical moving mechanism and a trajectory drawing mechanism. Both the horizontal moving mechanism and the vertical moving mechanism can drive the drawing pen to move, and then judge the flatness of the wall based on the trajectory of the drawing pen along the paper.

[0004] This solution has the following disadvantages: 1. Due to the size limitation of the device, the horizontal moving mechanism of the device is generally not long, which means that only a small area of ​​the wall can be detected. After the detection, the device needs to be moved to the next area for detection, which is troublesome. In addition, the device may easily go off track during the movement, affecting the accuracy of the detection results. 2. This method of depicting the trajectory is not easy to see the change of the trajectory when the wall is not obviously uneven, so the detection accuracy is not high, so it needs to be improved. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the first purpose of the utility model is to provide a wall surface flatness detection device to solve the problem that the detection precision and accuracy of the prior device are low.

[0006] The technical solution of the utility model is as follows: A wall flatness detection device, characterized in that it comprises:

[0007] A guide rail, the guide rail is arranged along the foot of the wall to be measured;

[0008] An inspection trolley, the inspection trolley is detachably matched with the guide rail, and a driving mechanism is provided on the inspection trolley, and the driving mechanism is used to drive the inspection trolley to reciprocate along the guide rail;

[0009] A detection component, the detection component includes a lifting mechanism, a base, a detection rod, a spring, a sliding rheostat and a display. The lifting mechanism and the display are arranged on the detection trolley. The lifting mechanism is connected to the base to drive the base to rise and fall. The detection rod can be horizontally slidably arranged on the base. The spring sleeve is on the detection rod and is respectively connected to the detection rod and the base. One end of the detection rod is a detection end for abutting against a wall to be tested, and the other end is fixedly connected to a sliding piece of the sliding rheostat. The sliding rheostat is electrically connected to the display.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. When detecting the flatness of the wall, the device uses a detection rod to drive the slider of the sliding rheostat to move, causing the electrical signal to change to reflect the change in the flatness of the wall. This detection method is simple, convenient and easy to implement, and can intuitively and vividly detect the slight change in the flatness of the wall through the change in the value of the electrical signal, and the detection accuracy is relatively high;

[0012] 2. It is also equipped with a guide rail extending from the foot of the wall to be tested. The detection trolley can automatically move back and forth along the guide rail, and the flatness detection of a certain area of ​​the wall can be completed by cooperating with the lifting of the lifting mechanism. This mobile detection method is simple and can greatly reduce labor intensity. In addition, the detection trolley is not easy to deviate and will not affect the accuracy of the test results.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0015] Figure 1 It is a schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the utility model;

[0017] Figure 3 It is a cross-sectional view of the detection trolley of the utility model;

[0018] Figure 4 It is a cross-sectional view of the sliding rheostat of the utility model;

[0019] Figure 5 It is a schematic diagram of the splicing of the guide rail of the utility model.

[0020] Reference numerals:

[0021] 1. Guide rail; 2. Detection trolley; 3. Lifting mechanism; 4. Base; 5. Detection rod; 6. Spring; 7. Sliding rheostat; 8. Display; 9. Sleeve; 10. Retaining ring; 11. Insulating shell; 12. First conductive sheet; 13. Second conductive sheet; 14. Terminal; 15. Sliding sheet; 16. Gear; 17. Limiting groove; 18. Threaded hole; 19. Screw; 20. Connecting plate. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0026] like Figure 1-Figure 5 A wall flatness detection device is shown, characterized in that it comprises: a guide rail 1, a detection trolley 2 and a detection component.

[0027] The guide rail 1 is extended along the foot of the wall to be measured. The foot of the wall refers to the position where the wall contacts the ground. As a result, the detection vehicle 2 can move in the length direction of the wall when moving, which is beneficial to ensure the accuracy of the measurement results. During measurement, the guide rail 1 can be temporarily fixed to the ground using clips, pressure blocks, etc. to prevent the position of the guide rail 1 from shifting after it is placed.

[0028] The detection trolley 2 is detachably matched with the guide rail 1, and a driving mechanism is provided on the detection trolley 2, which is used to drive the detection trolley 2 to reciprocate along the guide rail 1; the detection component includes a lifting mechanism 3, a base 4, a detection rod 5, a spring 6, a sliding rheostat 7 and a display 8, the lifting mechanism 3 and the display 8 are arranged on the detection trolley 2, the lifting mechanism 3 is connected to the base 4 to drive the base 4 to rise and fall, the detection rod 5 can be horizontally slidably arranged on the base 4, the spring 6 is sleeved on the detection rod 5 and is respectively connected to the detection rod 5 and the base 4, one end of the detection rod 5 is a detection end for abutting against the wall to be tested, and the other end is fixedly connected to the slider 15 of the sliding rheostat 7, and the sliding rheostat 7 is electrically connected to the display 8.

[0029] Specifically, before the test, the guide rail 1 is laid along the foot of the wall to be tested, and then the test trolley 2 is placed on the guide rail 1. At this time, under the elastic force of the spring 6, the detection end of the detection rod 5 will abut against the wall. Since the detection trolley 2 can move back and forth along the guide rail 1 in the present device, and the lifting structure can be lifted up and down, the detection rod 5 has two degrees of freedom in the direction of moving along the length of the wall and in the height direction. In this way, the user can choose to start the height direction test first or the horizontal direction test first according to the actual test needs.

[0030] For example, the lifting mechanism 3 can be first lifted to a certain height, and then the detection trolley 2 can be moved along the guide rail 1 to drive the detection rod 5 to first perform a flatness detection on the wall at a certain height. Then the lifting mechanism 3 can be automatically lifted and lowered for a certain distance, and the detection trolley 2 can be automatically moved along the guide rail 1 to drive the detection rod 5 to perform detection. By repeating this process, the flatness detection of a certain area of ​​the wall can be automatically completed. This mobile detection method is simple and can greatly reduce labor intensity.

[0031] During the entire detection process, under the elastic force of the spring 6, the detection end of the detection rod 5 is always in contact with the wall. Therefore, when the wall is uneven, the detection rod 5 will slide horizontally, thereby driving the slider 15 of the sliding rheostat 7 to slide, causing the resistance of the sliding rheostat 7 to change, and then causing the corresponding electrical signal value to change, such as the current and voltage. By detecting the corresponding electrical signal value changes and displaying and recording them on the display 8, the flatness change of the wall can be detected. This method is more convenient, has a simple structure, is easy to implement, and has a relatively high detection accuracy.

[0032] In practical applications, in order to further simplify the device structure, the display 8 can directly use a digital ammeter with a screen in the prior art. After this digital ammeter is connected in series with the sliding rheostat 7 and the power supply, it can be tested, which is very convenient.

[0033] The other structures of the device will be introduced in detail below.

[0034] The lifting mechanism 3 of the device is a multi-stage electric telescopic rod, which is an existing product and can be purchased directly.

[0035] like Figure 3 As shown, a horizontally placed sleeve 9 is fixed on the base 4, the detection rod 5 is slidably inserted into the sleeve 9, a retaining ring 10 is provided on the detection rod 5, the spring 6 is sleeved on the sleeve 9 and connected to the base 4 at one end and connected to the retaining ring 10 at the other end, and the horizontal sleeve 9 is used to horizontally support the detection rod 5 to prevent the detection rod 5 from shifting.

[0036] like Figure 3 As shown, the sliding rheostat 7 includes an insulating shell 11, a first conductive sheet 12, a second conductive sheet 13, a terminal 14 and a slide 15. The insulating shell 11 is fixedly connected to the base 4. The first conductive sheet 12 and the second conductive sheet 13 are arranged relatively and fixedly arranged in the insulating shell 11. The slide 15 is slidably arranged between the first conductive sheet 12 and the second conductive sheet 13 and is always electrically connected to the first conductive sheet 12 and the second conductive sheet 13. The first conductive sheet 12 and the second conductive sheet 13 are respectively provided with a terminal 14. In order to ensure the accuracy of the detection result, the base 4 and the detection rod 5 are both insulating parts. In order to ensure the safety of the detection, the current and voltage flowing through the sliding rheostat 7 cannot be too large to prevent electric shock.

[0037] like Figure 3 and Figure 4 As shown, the driving mechanism includes a motor and a gear 16. The bottom of the detection trolley 2 is provided with an upwardly recessed limit groove 17. The gear 16 is rotatably installed in the limit groove 17. The motor is arranged inside the detection trolley 2 and is connected to the gear 16. The guide rail 1 is an L-shaped guide rail 1. The guide rail 1 includes a vertical section and a horizontal section. The upper end of the vertical section is provided with a plurality of teeth to form a rack. The vertical section is inserted into the limit groove 17, and the gear 16 is meshed with the rack.

[0038] Thus, when the motor is working, the gear 16 can be driven to rotate, and the automatic movement of the detection trolley 2 can be realized through the cooperation of the gear 16 and the rack. In addition, the vertical section of the L-shaped guide rail 1 is also matched with the limit groove 17, so that the detection trolley 2 can be prevented from deviating from the guide rail 1.

[0039] In practical applications, the lengths of the walls to be measured vary, some are long and some are short. Therefore, in order to improve the applicability of the device, Figure 5 As shown, the two ends of the guide rail 1 in the length direction are respectively provided with a splicing structure, so that if the wall to be measured is relatively long, multiple guide rails 1 can be spliced ​​end to end in sequence into a long guide rail 1. Figure 5 As shown, the splicing structure is a threaded hole 18. When splicing, the threaded holes 18 of the two guide rails 1 can be connected using screws 19 and a double-hole connecting plate 20 to complete the splicing, which is very convenient.

[0040] In summary, this device has the following characteristics:

[0041] 1. When the device detects the flatness of the wall, the detection rod 5 drives the slider 15 of the sliding rheostat 7 to move, causing the electrical signal to change to reflect the change in the flatness of the wall. This detection method is simple, convenient and easy to implement, and can intuitively and vividly detect the slight change in the flatness of the wall through the change in the value of the electrical signal, and the detection accuracy is relatively high;

[0042] 2. It is also equipped with a guide rail 1 extending from the foot of the wall to be tested. The detection trolley 2 can automatically move back and forth along the guide rail 1, and the flatness detection of a certain area of ​​the wall can be completed by cooperating with the lifting of the lifting mechanism 3. This mobile detection method is simple and can greatly reduce labor intensity. In addition, the detection trolley 2 is not easy to deviate, which will not affect the accuracy of the detection result.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wall flatness detection device, characterized in that: include: A guide rail, the guide rail is arranged along the foot of the wall to be measured; An inspection trolley, the inspection trolley is detachably matched with the guide rail, and a driving mechanism is provided on the inspection trolley, and the driving mechanism is used to drive the inspection trolley to reciprocate along the guide rail; A detection component, the detection component includes a lifting mechanism, a base, a detection rod, a spring, a sliding rheostat and a display. The lifting mechanism and the display are arranged on the detection trolley. The lifting mechanism is connected to the base to drive the base to rise and fall. The detection rod can be horizontally slidably arranged on the base. The spring sleeve is on the detection rod and is respectively connected to the detection rod and the base. One end of the detection rod is a detection end for abutting against a wall to be tested, and the other end is fixedly connected to a sliding piece of the sliding rheostat. The sliding rheostat is electrically connected to the display.

2. The wall surface flatness detection device according to claim 1, characterized in that: The lifting mechanism is a multi-stage electric telescopic rod.

3. The wall flatness detection device according to claim 1, characterized in that: A horizontally placed sleeve is fixed on the base, the detection rod is slidably inserted into the sleeve, a retaining ring is provided on the detection rod, the spring is sleeved on the sleeve and connected to the base at one end and the retaining ring at the other end.

4. The wall surface flatness detection device according to claim 1, characterized in that: The sliding rheostat includes an insulating shell, a first conductive sheet, a second conductive sheet, a terminal and a slider. The insulating shell is fixedly connected to the base. The first conductive sheet and the second conductive sheet are arranged opposite to each other and fixed in the insulating shell. The slider is slidably arranged between the first conductive sheet and the second conductive sheet and is always electrically connected to the first conductive sheet and the second conductive sheet. The terminal is respectively provided on the first conductive sheet and the second conductive sheet.

5. The wall surface flatness detection device according to claim 1, characterized in that: The driving mechanism includes a motor and a gear. The bottom of the detection trolley is provided with an upwardly concave limit groove, the gear is rotatably installed in the limit groove, and the motor is arranged inside the detection trolley and connected to the gear. The guide rail is an L-shaped guide rail, which includes a vertical section and a horizontal section. The upper end of the vertical section is provided with a plurality of teeth to form a rack. The vertical section is inserted into the limiting groove, and the gear is meshed with the rack.

6. The wall surface flatness detection device according to claim 1, characterized in that: Both ends of the guide rail in the length direction are respectively provided with a splicing structure.

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