Stair detection equipment for constructional engineering supervision
By designing a stair detection equipment containing laser pens and drive components, the problem of low measurement efficiency in the prior art is solved, and fast and accurate detection of stair height and width is achieved, thereby improving detection efficiency and reliability.
Patent Information
- Application Number
- CN202421054435.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The existing stair detection equipment for construction engineering supervision needs to be placed layer by layer when measuring, resulting in low measurement efficiency. Especially in the case of multiple stairs, frequent repeated operations are not conducive to improving measurement efficiency.
A detection device including a first mounting frame and a second mounting frame is designed, and by setting a height detection component and a width detection component, a laser pointer and a driving component are used to achieve rapid detection of the height and width of the stairs, combining a scale line and an indicator needle. Improve accuracy and ensure device stability and vertical angle through rotating shafts and nuts.
It improves the efficiency and accuracy of stair height and width detection, simplifies the measurement process, ensures the high accuracy and reliability of the inspection equipment, and reduces the possibility of rework.
Smart Images
Figure CN222279583U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a staircase detection device for construction engineering supervision. Background Art
[0002] As a component for vertical transportation between floors, building stairs are used for transportation between floors and when there is a large height difference. According to the National Safety Production Standardization Standard, after the construction of a construction project is completed, the supervision unit (construction project supervision refers to a construction supervision company with corresponding qualifications) should organize a pre-completion acceptance before the formal acceptance to test the quality and safety performance of the stairs. The inspection items include whether the length of the stair stride meets the requirements of the corresponding standards and whether there is an uneven stride. The size of the stride should generally be adapted to the stride of the human foot. The size of the stride includes height detection and width detection. The supervision unit will use professional measuring instruments and personnel for on-site observation, and calculate and analyze the data after the inspection. Problems found in the pre-acceptance should be communicated with the construction unit in a timely manner to put forward rectification requirements.
[0003] A Chinese utility model patent with announcement number CN220729123U discloses a stair detection device for construction engineering supervision, including a storage seat, a movable groove is opened in the middle of the lower seat wall of the storage seat, a width detection mechanism is interspersed and movably connected between the middle of the front groove wall and the middle of the rear groove wall of the movable groove, a plurality of width scale lines are engraved on the lower right end and the lower left end of the storage seat, an angle detection mechanism is interspersed and movably connected to the rear right end and the rear left end of the storage seat, and a detection frame is fixedly connected between the opposite surfaces of the two angle detection mechanisms. The stair detection device for construction engineering supervision described in the utility model can detect the width and height of the stair steps at the same time by setting a width detection mechanism and a height detection mechanism, thereby improving the accuracy of the detection data, and can detect the inclination angle of the stair steps by setting an angle detection mechanism.
[0004] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: when using the practical tool for measurement, the measurement personnel need to place the detection equipment on the surface of the stairs to be measured layer by layer for measurement. In view of the large number of stairs, the measurement personnel need to repeat the above steps frequently, which is not conducive to improving the measurement efficiency. Utility Model Content
[0005] In order to solve the above problems, the utility model provides a staircase detection device for construction engineering supervision.
[0006] The above technical objectives of the utility model are achieved through the following technical solutions: a stair detection device for construction engineering supervision, comprising a first mounting frame and a second mounting frame hinged to one end of the first mounting frame, a first mounting groove is arranged on one side of the first mounting frame, a second mounting groove for accommodating the first mounting frame is arranged on one side of the second mounting frame, a height detection component is arranged on the first mounting frame, the height detection component is provided with two groups and is symmetrically arranged about the first mounting frame, each group of the height detection components comprises a screw rod rotatably installed in the first mounting groove, a first connecting block sleeved on the screw rod and threadedly connected to the screw rod, and a first laser pen arranged on the first connecting block, the first connecting block and the first mounting block are connected to the first mounting groove, and the second mounting groove is connected to the first mounting groove. The grooves are slidably matched, and a driving component for driving the screw rod to rotate is provided on the first mounting frame, and the driving component is provided with two groups and is respectively used to drive the two screw rods to rotate; a width detection component is provided on the second mounting frame, and the width detection component is provided with two groups and is symmetrically arranged about the second mounting frame, each group of the width detection components includes a threaded rod arranged in the second mounting groove and rotatably connected to the second mounting frame, a second connecting block sleeved on the threaded rod and threadedly connected to the threaded rod, a second laser pen arranged on the second connecting block, and a handle fixed to the end of the threaded rod and located on the outside of the second mounting frame, the second connecting block is slidably matched with the second mounting groove, and scale lines are provided on the outsides of the first mounting frame and the second mounting frame.
[0007] By adopting the above technical solution, when inspecting the height and width dimensions of the stairs, the inspector fits the side wall of one side of the first mounting frame with the side wall of the bottom step of the stairs, opens the second mounting frame hinged to one end of the first mounting frame and places the second mounting frame above the steps until the rotation angle between the two is 90 degrees, and the zero scale of the scale line on the second mounting frame is flush with the side wall of the first mounting frame on the side close to the steps. The inspector adjusts the first laser pen on the first connecting block to a position consistent with the actual height of the on-site stairs through the driving component, and adjusts the second laser pen on the second connecting block to a position consistent with the actual height of the on-site stairs through the handle. The inspector then uses the driving component to make the distance between the two first laser pen equal to the height of the stairs. Similarly, the inspector uses the handle to make the distance between the two second laser pen equal to the width of the stairs. Then, the two first laser pen and the two second laser pen are turned on, and the flatness of the stair steps is detected by observing the light emitted by the two first laser pen and the two second laser pen. If the light emitted by the two first laser pen is not blocked on the surface of all stair steps, and the light spots formed on the side walls of the stair steps are in the same position, it means that the height of the stairs meets the standard, otherwise it does not meet the standard. If the light emitted by the two second laser pen is not blocked on the side walls of all stair steps, and the light spots formed on the surface of the stair steps are in the same position, it means that the width of the stairs meets the standard, otherwise it does not meet the standard.
[0008] Furthermore, the driving assembly includes a rotating shaft that passes through the side wall of the first mounting frame and is rotatably connected to the first mounting frame, a handwheel fixed on the side wall of the rotating shaft, a first bevel gear fixed to one end of the rotating shaft and located in the first mounting groove, and a second bevel gear fixedly sleeved on the screw rod and meshing with the first bevel gear.
[0009] By adopting the above technical solution, the inspector turns the handwheel, which drives the rotating shaft and the first bevel gear to rotate, and then drives the second bevel gear meshing with the first bevel gear and the screw fixed to the second bevel gear to rotate. Since the first connecting block slides with the first mounting groove, the first connecting block and the first laser pen move up and down along the movement direction of the screw, thereby completing the height detection process of the stairs to be inspected.
[0010] Furthermore, a mounting hole for mounting a first laser pen is provided on one side of the first connecting block, an indicator needle for indicating the position of a scale line is provided on the side wall of the first connecting block, the indicator needle and the first laser pen are on the same horizontal line, the second laser pen is arranged on the second connecting block in the same manner as the first laser pen is arranged on the first connecting block, and is also provided with an indicator needle for indicating the position of a scale line, and two symmetrically arranged slide grooves are provided on the side wall of the second mounting frame near the scale lines, the slide grooves are connected to the second mounting grooves, and the slide grooves are used for the indicator needle in the width detection assembly to slide on the second mounting frame.
[0011] By adopting the above technical solution, in order to further improve the detection accuracy, an indicator needle is set on the side wall of the first connecting block, and the indicator needle is used to clarify the specific position of the scale line, so as to facilitate the detection personnel to obtain the height value of the stairs to be detected. Similarly, the installation method of the second laser pen on the second connecting block also follows the same standard, and is also equipped with an indicator needle for indicating the position of the scale line, so as to facilitate the detection personnel to obtain the width value of the stairs to be detected. This design ensures the high accuracy and reliability of the detection equipment when measuring the height and width of the stairs.
[0012] Furthermore, a rotating shaft that is loosely matched with the first mounting frame is provided through the side wall of the first mounting frame near the top of the first mounting frame, the rotating shaft passes through the side wall of the second mounting frame and is loosely matched with the second mounting frame, a nut that is threadedly connected to the rotating shaft is sleeved on the rotating shaft, a circular protractor that is fitted with the side wall of the second mounting frame is fixedly sleeved on the side of the rotating shaft away from the nut, and an angle pointer that is used to indicate the degree of rotation between the second mounting frame and the first mounting frame is provided at one end of the rotating shaft away from the nut.
[0013] By adopting the above technical solution, the inspector limits the rotating shaft through the nut to ensure that during the inspection process, the first mounting bracket always maintains a vertical angle with the second mounting bracket, which is beneficial to improve the stability of the inspection equipment during the inspection process. Since the angle pointer is fixedly connected to the rotating shaft, the inspector can accurately adjust the angle between the first mounting bracket and the second mounting bracket through the cooperation of the circular protractor and the angle pointer. The light emitted by the first laser pen should be on the upper surface of the stair tread, and the light emitted by the second laser pen should be on the side of the stair tread. When both beams of light are not blocked, it means that the surface and side of the stair tread are standard vertical planes. If a certain light is blocked or partially blocked, it means that the surface corresponding to the stair tread has a slope and may need to be reworked.
[0014] Furthermore, an annular gasket is provided between the first mounting frame and the nut, and the annular gasket is sleeved on the rotating shaft and is clearance-matched with the rotating shaft.
[0015] By adopting the above technical solution, the annular gasket can increase the friction between the nut, the rotating shaft and the first mounting frame, preventing the nut from loosening or sliding during connection, thereby ensuring the firmness of the connection.
[0016] Furthermore, a counterweight seat flush with the bottom of the first mounting frame is fixed to the side wall of the first mounting frame.
[0017] By adopting the above technical solution, the counterweight seat is conducive to increasing the contact area between the first mounting frame and the ground. The counterweight seat has a certain weight, which ensures that the center of gravity of the detection equipment is in a stable state, thereby ensuring the stability of the detection equipment.
[0018] Furthermore, an arc-shaped notch communicating with the second mounting groove is provided on the side wall of the second mounting frame, and the arc-shaped notch is located at a position away from the side of the rotating shaft.
[0019] By adopting the above technical solution, the provision of the arc-shaped notch is conducive to the inspection personnel to simply and quickly open the second mounting frame and then inspect the stairs.
[0020] Furthermore, a groove for accommodating the hand wheel is formed on the side wall of the second mounting frame near the hand wheel, and the groove is communicated with the second mounting groove.
[0021] By adopting the above technical solution and the design of the groove, it is helpful to reduce the probability that the hand wheel affects the folding of the second mounting frame.
[0022] In summary, the utility model has the following beneficial effects:
[0023] 1. In the present application, when testing the height and width of the stairs, the tester fits the side wall of one side of the first mounting frame with the side wall of the bottom step of the stairs, opens the second mounting frame hinged to one end of the first mounting frame and places the second mounting frame above the steps until the rotation angle between the two is 90 degrees, and the zero scale of the scale line on the second mounting frame is flush with the side wall of the first mounting frame close to the steps. The inspector uses the driving component to adjust the first laser pen on the first connecting block to a position consistent with the actual height of the on-site stairs, and uses the handle to adjust the first laser pen on the second connecting block to a position consistent with the actual height of the on-site stairs. The inspector then uses the driving component to make the distance between the two first laser pen equal to the height of the stairs. Similarly, the inspector uses the handle to make the distance between the two second laser pen equal to the width of the stairs. Then, the two first laser pen and the two second laser pen are turned on, and the flatness of the stair steps is inspected by observing the light emitted by the two first laser pen and the two second laser pen. If the light emitted by the two first laser pen is not blocked on the surface of all stair steps, and the light spots formed on the side walls of the stair steps are in the same position, it means that the height of the stairs meets the standard, otherwise it does not meet the standard. If the light emitted by the two second laser pen is not blocked on the side walls of all stair steps, and the light spots formed on the surface of the stair steps are in the same position, it means that the width of the stairs meets the standard, otherwise it does not meet the standard.
[0024] 2. In the present application, the inspector rotates the hand wheel, which drives the rotating shaft and the first bevel gear to rotate, and then drives the second bevel gear meshing with the first bevel gear and the screw fixed to the second bevel gear to rotate. Since the first connecting block and the first mounting groove are slidably matched, the first connecting block and the first laser pen move up and down along the movement direction of the screw, thereby completing the height detection process of the stairs to be detected;
[0025] 3. In this application, in order to further improve the detection accuracy, an indicator needle is set on the side wall of the first connecting block, and the indicator needle is used to clarify the specific position of the scale line, so as to facilitate the detection personnel to obtain the height value of the stairs to be detected. Similarly, the installation method of the second laser pen on the second connecting block also follows the same standard, and is also equipped with an indicator needle for indicating the position of the scale line, so as to facilitate the detection personnel to obtain the width value of the stairs to be detected. This design ensures the high accuracy and reliability of the detection equipment when measuring the height and width of the stairs. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural schematic diagram of the stair detection device in the embodiment of the utility model when detecting the stairs;
[0027] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;
[0028] Figure 3 It is a schematic diagram of the structure after the second mounting frame and the first mounting frame are folded in the embodiment of the utility model;
[0029] Figure 4 It is a structural schematic diagram of an embodiment of the utility model for highlighting the first mounting frame and the height detection component;
[0030] Figure 5 This is a schematic diagram of the structure of the embodiment of the utility model for highlighting the second mounting frame and the width detection component
[0031] Figure 6 It is a schematic diagram of an embodiment of the utility model for simulating on-site detection work.
[0032] In the figure: 1. first mounting bracket; 11. first mounting slot; 2. second mounting bracket; 21. second mounting slot; 22. slide slot; 23. arc-shaped notch; 24. groove; 3. height detection assembly; 31. screw rod; 32. first connecting block; 33. first laser pen; 4. width detection assembly; 41. threaded rod; 42. second connecting block; 43. second laser pen; 44. handle; 5. drive assembly; 51. rotating shaft; 52. hand wheel; 53. first bevel gear; 54. second bevel gear; 6. scale line; 61. indicator needle; 7. mounting hole; 8. rotating shaft; 81. nut; 811. annular gasket; 9. circular protractor; 91. angle pointer; 10. counterweight seat. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.
[0034] like Figure 1-6 As shown, an embodiment of the present application discloses a stair detection device for construction engineering supervision, including a first mounting frame 1, a second mounting frame 2, a height detection component 3, a width detection component 4 and a driving component 5.
[0035] A first mounting groove 11 is provided on one side of the first mounting frame 1, and a second mounting groove 21 for accommodating the first mounting frame 1 is provided on one side of the second mounting frame 2. The second mounting frame 2 is hinged to one end of the first mounting frame 1. After the second mounting frame 2 and the first mounting frame 1 are folded, the opening direction of the second mounting groove 21 is opposite to the opening direction of the first mounting groove 11, and scale lines 6 are provided on the outer sides of the first mounting frame 1 and the second mounting frame 2.
[0036] The height detection assembly 3 is arranged on the first mounting frame 1. There are two groups of height detection assembly 3 and they are symmetrically arranged about the first mounting frame 1. Each group of height detection assembly 3 includes a screw rod 31, a first connecting block 32 and a first laser pen 33. The screw rod 31 is rotatably installed in the first mounting groove 11, the first connecting block 32 is sleeved on the screw rod 31 and is threadedly connected with the screw rod 31, and the first connecting block 32 is slidably matched with the first mounting groove 11. A mounting hole 7 for mounting the first laser pen 33 is provided on one side of the first connecting block 32, and the distance between the axis of the mounting hole 7 and the upper surface of the first connecting block 32 is equal to the distance between the axis of the mounting hole 7 and the lower surface of the first connecting block 32. An indicator needle 61 for indicating the position of the scale line 6 is provided on the side wall of the first connecting block 32, and the indicator needle 61 and the first laser pen 33 are on the same horizontal line. In this embodiment, when inspecting the height of the stairs, the inspector fits the side wall of one side of the first mounting frame 1 with the side wall of the bottom step of the stairs. The inspector adjusts the first laser pen 33 on the first connecting block 32 to a position consistent with the actual height of the stairs on site through the driving component 5, and obtains the height value of the stairs through the coordination of the indicator needle 61 and the scale line 6.
[0037] The width detection assembly 4 is arranged on the second mounting frame 2. The width detection assembly 4 is provided with two groups and is symmetrically arranged about the second mounting frame 2. Each group of the width detection assembly 4 includes a threaded rod 41, a second connecting block 42, a second laser pen 43 and a handle 44. The threaded rod 41 is arranged in the second mounting groove 21 and is rotatably connected to the second mounting frame 2. The second connecting block 42 is sleeved on the threaded rod 41 and is threadedly connected to the threaded rod 41. The second connecting block 42 is slidably matched with the second mounting groove 21. The second laser pen 43 is arranged on the second connecting block 42 in the same manner as the first laser pen 33 is arranged on the first connecting block 32, and is also provided with an indicator needle 61 for indicating the position of the scale line 6. The second laser pen 43 is arranged on the second connecting block 42, and the handle 44 is fixed to the end of the threaded rod 41 and is located outside the second mounting frame 2. Two symmetrically arranged slide grooves 22 are provided on the side wall of the second mounting frame 2 near the scale line 6. The slide grooves 22 are connected to the second mounting groove 21. The slide grooves 22 are used for the indicator needle 61 in the width detection assembly 4 to slide on the second mounting frame 2. In this embodiment, when detecting the width of the stairs, the inspector opens the second mounting frame 2 hinged to one end of the first mounting frame 1 and places the second mounting frame 2 above the step until the rotation angle between the two is 90 degrees, the zero scale of the scale line 6 on the second mounting frame 2 is flush with the side wall of the first mounting frame 1 near the step, and the second laser pen 43 on the second connecting block 42 is adjusted to a position consistent with the actual height of the stairs on site. The stair width value is obtained through the cooperation of the indicator needle 61 and the scale line 6.
[0038] The driving assembly 5 is arranged on the first mounting frame 1, and is used to drive the screw rod 31 to rotate. The driving assembly 5 is provided with two groups and is respectively used to drive the two screw rods 31 to rotate. The driving assembly 5 includes a rotating shaft 51, a hand wheel 52, a first bevel gear 53 and a second bevel gear 54. The rotating shaft 51 is arranged on the side wall of the first mounting frame 1 and is rotatably connected to the first mounting frame 1, the hand wheel 52 is fixed on the side wall of the rotating shaft 51, the first bevel gear 53 is fixed on one end of the rotating shaft 51 and is located in the first mounting groove 11, and the second bevel gear 54 is fixedly sleeved on the screw rod 31 and meshes with the first bevel gear 53. In this embodiment, the inspector rotates the handwheel 52, and the handwheel 52 drives the rotating shaft 51 and the first bevel gear 53 to rotate, thereby driving the second bevel gear 54 meshing with the first bevel gear 53 and the screw rod 31 fixed to the second bevel gear 54 to rotate. Since the first connecting block 32 slides with the first mounting groove 11, the first connecting block 32 and the first laser pen 33 move up and down along the movement direction of the screw rod 31, completing the height detection process of the stairs to be inspected.
[0039] In order to further improve the detection accuracy, a mounting hole 7 for mounting the first laser pen 33 is provided on one side of the first connecting block 32, and an indicator needle 61 for indicating the position of the scale line 6 is provided on the side wall of the first connecting block 32, and the indicator needle 61 and the first laser pen 33 are on the same horizontal line, and the second laser pen 43 is arranged on the second connecting block 42 in the same manner as the first laser pen 33 on the first connecting block 32, and is also provided with an indicator needle 61 for indicating the position of the scale line 6, and two symmetrically arranged slide grooves 22 are provided on the side wall of the second mounting frame 2 near the scale line 6, and the slide groove 22 is connected to the second mounting groove 21, and the slide groove 22 is used for the indicator needle 61 in the width detection component 4 to slide on the second mounting frame 2, and the indicator needle 61 is used to clarify the specific position of the scale line 6, so as to facilitate the detection personnel to obtain the height value of the stairs to be detected. Similarly, the installation method of the second laser pen 43 on the second connecting block 42 also follows the same standard, and is also configured with an indicator needle 61 for indicating the position of the scale line 6, so as to facilitate the inspector to obtain the width value of the stairs to be inspected. This design ensures the high accuracy and reliability of the inspection equipment when measuring the height and width of the stairs.
[0040] In order to improve the stability of the detection equipment during the detection process, a rotating shaft 8 with a clearance fit with the first mounting frame 1 is provided through the side wall of the first mounting frame 1 near the top of the first mounting frame 1, and the rotating shaft 8 passes through the side wall of the second mounting frame 2 and with a clearance fit with the second mounting frame 2, and a nut 81 threadedly connected to the rotating shaft 8 is sleeved on the rotating shaft 8, and a circular protractor 9 that fits with the side wall of the second mounting frame 2 is fixedly sleeved on the side of the rotating shaft 8 away from the nut 81, and an angle pointer 91 for indicating the degree of rotation between the second mounting frame 2 and the first mounting frame 1 is provided at the end of the rotating shaft 8 away from the nut 81. In this embodiment, the inspector limits the rotating shaft 8 by means of the nut 81 to ensure that during the inspection process, the first mounting frame 1 always maintains a vertical angle with the second mounting frame 2, which is beneficial to improving the stability of the inspection equipment during the inspection process. Since the angle pointer 91 is fixedly connected to the rotating shaft 8, the inspector can accurately adjust the angle between the first mounting frame 1 and the second mounting frame 2 by means of the cooperation between the circular protractor 9 and the angle pointer 91. The light emitted by the first laser pen 33 should be on the upper surface of the stair tread, and the light emitted by the second laser pen 43 should be on the side of the stair tread. When both beams of light are not blocked, it indicates that the surface and side of the stair tread are standard vertical planes. If a certain light is blocked or partially blocked, it indicates that the surface corresponding to the stair tread has a slope and may need to be reworked.
[0041] In order to reduce the probability of the nut 81 loosening or sliding during connection, an annular gasket 811 is provided between the first mounting frame 1 and the nut 81, and the annular gasket 811 is sleeved on the rotating shaft 8 and has a clearance fit with the rotating shaft 8. The annular gasket 811 can increase the friction force of the connection between the nut 81, the rotating shaft 8 and the first mounting frame 1, prevent the nut 81 from loosening or sliding during connection, and thus ensure the firmness of the connection.
[0042] In order to improve the stability of the detection device during use, a counterweight seat 10 flush with the bottom of the first mounting frame 1 is fixed to the side wall of the first mounting frame 1. The counterweight seat 10 is conducive to increasing the contact area between the first mounting frame 1 and the ground. The counterweight seat 10 has a certain weight, which ensures that the center of gravity of the detection device is in a stable state.
[0043] In order to facilitate the inspector to open the second mounting frame 2 simply and quickly, an arc-shaped notch 23 communicating with the second mounting groove 21 is provided on the side wall of the second mounting frame 2 , and the arc-shaped notch 23 is located away from the rotating shaft 8 .
[0044] In order to reduce the probability that the hand wheel 52 affects the folding of the second mounting frame 2 , a groove 24 for accommodating the hand wheel 52 is provided on the side wall of the second mounting frame 2 near the hand wheel 52 , and the groove 24 is connected to the second mounting groove 21 .
[0045] The use principle of a stair detection device for construction engineering supervision in this embodiment is: when detecting the height and width dimensions of the stairs, the detection personnel fit the side wall of one side of the first mounting frame 1 with the side wall of the bottom step of the stairs, open the second mounting frame 2 hinged to one end of the first mounting frame 1 and make the second mounting frame 2 located above the step until the rotation angle between the two is 90 degrees, and the zero scale of the scale line 6 on the second mounting frame 2 is flush with the side wall of the first mounting frame 1 close to the step. The inspector adjusts the first laser pen 33 on the first connecting block 32 to a position consistent with the actual height of the on-site stairs through the driving component 5, and adjusts the second laser pen 43 on the second connecting block 42 to a position consistent with the actual height of the on-site stairs through the handle 44. The inspector then uses the driving component 5 to make the distance between the two first laser pen 33 equal to the height of the stairs. Similarly, the inspector uses the handle 44 to make the distance between the two second laser pen 43 equal to the width of the stairs. Then, the two first laser pen 33 and the two second laser pen 43 are turned on. By observing the light emitted by the two first laser pen 33 and the two second laser pen 43, the flatness of the stair steps is detected. If the light emitted by the two first laser pen 33 is not blocked on all stair tread surfaces, and the light spots formed on the side walls of the stair treads are at the same position, it means that the height of the stairs meets the standard, otherwise it does not meet the standard. If the light emitted by the two second laser pen 43 is not blocked on all stair tread side walls, and the light spots formed on the stair treads are at the same position, it means that the width of the stairs meets the standard, otherwise it does not meet the standard.
[0046] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A staircase detection device for construction engineering supervision, characterized by: The invention comprises a first mounting frame (1) and a second mounting frame (2) hinged to one end of the first mounting frame (1); a first mounting groove (11) is arranged on one side of the first mounting frame (1); a second mounting groove (21) for accommodating the first mounting frame (1) is arranged on one side of the second mounting frame (2); a height detection assembly (3) is arranged on the first mounting frame (1); the height detection assembly (3) is provided with two groups and is symmetrically arranged with respect to the first mounting frame (1); each group of the height detection assembly (3) comprises a screw rod (31) rotatably mounted in the first mounting groove (11); a first connecting block (32) sleeved on the screw rod (31) and threadedly connected to the screw rod (31); and a first laser pen (33) arranged on the first connecting block (32); the first connecting block (32) is slidably matched with the first mounting groove (11); a driving screw rod (31) is arranged on the first mounting frame (1). A rotating drive assembly (5), wherein the drive assembly (5) is provided with two groups and is respectively used to drive two screw rods (31) to rotate; a width detection assembly (4) is provided on the second mounting frame (2), wherein the width detection assembly (4) is provided with two groups and is symmetrically arranged with respect to the second mounting frame (2), each group of the width detection assembly (4) comprises a threaded rod (41) arranged in the second mounting groove (21) and rotatably connected to the second mounting frame (2), a second connecting block (42) sleeved on the threaded rod (41) and threadedly connected to the threaded rod (41), a second laser pen (43) arranged on the second connecting block (42), and a handle (44) fixed to the end of the threaded rod (41) and located outside the second mounting frame (2), the second connecting block (42) is slidably matched with the second mounting groove (21), and scale lines (6) are provided on the outside of the first mounting frame (1) and the second mounting frame (2).
2. The staircase detection device for construction engineering supervision according to claim 1 is characterized by: The driving assembly (5) comprises a rotating shaft (51) penetrating through a side wall of the first mounting frame (1) and rotatably connected to the first mounting frame (1), a hand wheel (52) fixed to the side wall of the rotating shaft (51), a first bevel gear (53) fixed to one end of the rotating shaft (51) and located in the first mounting groove (11), and a second bevel gear (54) fixedly sleeved on the screw rod (31) and meshing with the first bevel gear (53).
3. The staircase detection device for construction engineering supervision according to claim 2 is characterized by: A mounting hole (7) for mounting a first laser pen (33) is provided on one side of the first connecting block (32); an indicator needle (61) for indicating the position of a scale line (6) is provided on the side wall of the first connecting block (32); the indicator needle (61) and the first laser pen (33) are on the same horizontal line; the second laser pen (43) is arranged on the second connecting block (42) in the same manner as the first laser pen (33) on the first connecting block (32), and is also provided with an indicator needle (61) for indicating the position of a scale line (6); two symmetrically arranged slide grooves (22) are provided on the side wall of the second mounting frame (2) near the scale line (6); the slide grooves (22) are connected to the second mounting grooves (21); the slide grooves (22) are used for the indicator needle (61) in the width detection component (4) to slide on the second mounting frame (2).
4. The staircase detection device for construction engineering supervision according to claim 3 is characterized by: A rotating shaft (8) is provided through the side wall of the first mounting frame (1) at a position close to the top of the first mounting frame (1), and the rotating shaft (8) passes through the side wall of the second mounting frame (2) and is in clearance with the second mounting frame (2). A nut (81) threadedly connected to the rotating shaft (8) is sleeved on the rotating shaft (8). A circular protractor (9) in contact with the side wall of the second mounting frame (2) is fixedly sleeved on the side of the rotating shaft (8) away from the nut (81). An angle pointer (91) for indicating the degree of rotation between the second mounting frame (2) and the first mounting frame (1) is provided on the end of the rotating shaft (8) away from the nut (81).
5. The staircase detection device for construction engineering supervision according to claim 4 is characterized by: An annular gasket (811) is provided between the first mounting frame (1) and the nut (81); the annular gasket (811) is sleeved on the rotating shaft (8) and is clearance-matched with the rotating shaft (8).
6. The staircase detection device for construction engineering supervision according to claim 5 is characterized by: A counterweight seat (10) flush with the bottom of the first mounting frame (1) is fixed to the side wall of the first mounting frame (1).
7. The staircase detection device for construction engineering supervision according to claim 6 is characterized by: An arc-shaped notch (23) communicating with the second mounting groove (21) is provided on the side wall of the second mounting frame (2), and the arc-shaped notch (23) is located at a position away from the rotating shaft (8).
8. The staircase detection device for construction engineering supervision according to claim 7 is characterized by: A groove (24) for accommodating the hand wheel (52) is provided on the side wall of the second mounting frame (2) near the hand wheel (52), and the groove (24) is communicated with the second mounting groove (21).