Internal and external right angle detection ruler for house safety detection

Abstract

The utility model belongs to the technical field of building detection equipment, and particularly relates to an internal and external right angle detection ruler for house safety detection, which comprises a main ruler and an auxiliary ruler, one end of the main ruler is recessed inwards to form an accommodating groove for accommodating the auxiliary ruler, one end of the auxiliary ruler is provided with a rotating shaft, and the auxiliary ruler is rotatably connected with the main ruler through the rotating shaft; third grooves are oppositely formed in the two side walls of the containing groove, a telescopic assembly is arranged in each third groove, a plurality of clamping strips are arranged at the telescopic end of each telescopic assembly, the telescopic assemblies drive the clamping strips to be close to or away from the auxiliary ruler in a telescopic mode, clamping plates are arranged on the two side walls of the auxiliary ruler respectively, and the clamping plates abut against any clamping strip in a clamped mode. The telescopic assembly is arranged to drive the clamping strip to stretch out and draw back, and the clamping strip stretches out of the third groove and abuts against the clamping plate on the auxiliary ruler in a clamped mode, so that the auxiliary ruler is higher in stability and not prone to deviation in the measuring process, and then the measuring precision is higher; and through the arrangement of the storage groove, the auxiliary ruler can be conveniently stored.

Description

Technical Field

[0001] The utility model belongs to the technical field of building inspection equipment, and particularly relates to an internal and external right-angle inspection ruler for housing safety inspection. Background Art

[0002] The internal and external right-angle inspection ruler is used to detect the deviation of internal and external (yin and yang) right angles on an object, as well as the perpendicularity and flatness of a general plane. It is also called a leveling ruler. It is a detection tool with the highest frequency of use in the perpendicularity detection, flatness detection, and levelness detection of the plane of building objects. It is used to detect whether the wall surface and tiles are flat and perpendicular, and whether the floor joists are horizontal and flat. The internal and external right-angle inspection ruler is used to measure the dimensions of the right-angle parts in a house, and the main ruler and the auxiliary ruler are used to measure whether the internal or external corner of the house is a right angle.

[0003] For the existing internal and external right-angle inspection ruler for housing safety inspection, by setting a connecting block, a hollow plate and a measuring mechanism, it is convenient to carry out measurement. However, when in use, the auxiliary ruler is prone to errors when rotating the measuring structure, with insufficient stability, low measurement accuracy, and limitations in use. Content of the Utility Model

[0004] In view of this, in order to solve the problems existing in the prior art, the purpose of the utility model is to provide an internal and external right-angle inspection ruler for housing safety inspection, so that the auxiliary ruler has higher stability and will not easily shift, thereby achieving a higher measurement accuracy.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] An internal and external right-angle inspection ruler for housing safety inspection, which includes: a main ruler and an auxiliary ruler. One end of the main ruler is recessed inward to form a storage groove for storing the auxiliary ruler. One end of the auxiliary ruler is provided with a rotating shaft, and one end of the auxiliary ruler is rotatably connected to one end of the main ruler through the rotating shaft;

[0007] On the two side walls of the storage groove, a third groove is relatively opened. Each third groove is provided with a telescopic component. A plurality of clamping strips are arranged on the telescopic end of each telescopic component. The telescopic end of the telescopic component can telescopically drive the clamping strips to approach or move away from the auxiliary ruler. A clamping plate is respectively arranged on the two side walls of the auxiliary ruler, and the clamping plate is clamped against any one of the clamping strips.

[0008] The specific technical effect is: by setting the telescopic component to drive the clamping strips to expand and contract, it is convenient to clamp the clamping strips protruding from the third groove against the clamping plates on the auxiliary ruler during the internal and external right-angle inspection of housing safety inspection, so that the auxiliary ruler has higher stability and will not easily shift during measurement, thereby achieving a higher measurement accuracy; by setting the storage groove, it is convenient to store the auxiliary ruler.

[0009] Further, the telescopic assembly includes an electric telescopic rod and a fixing ring. The fixing ring is arranged at the output end of the electric telescopic rod. The fixing ring is located in the third groove and is movably sleeved on the rotating shaft. A plurality of the clamping strips are arranged on the end face of the fixing ring facing the auxiliary scale. Two control buttons are arranged on the main scale, and each electric telescopic rod is electrically connected to one of the control buttons.

[0010] The specific technical effect is that the control button controls the telescopic movement of the output end of the electric telescopic rod, thereby driving the fixing ring to rise and fall. When performing the internal and external right-angle detection of the housing safety inspection, the clamping strips extend out of the third groove and are engaged with the clamping plates on the auxiliary scale to block the clamping plates, so that the auxiliary scale has higher stability and will not easily shift during measurement.

[0011] Further, a plurality of the clamping strips are distributed in a spoke-like manner on the end face of the fixing ring facing the auxiliary scale.

[0012] Further, a first elastic assembly is arranged at the other end of the main scale. A pressing block is arranged at the lower end of the first elastic assembly. A second elastic assembly is arranged inside the other end of the auxiliary scale. A clamping block is arranged at the upper end of the second elastic assembly. The pressing block and the clamping block are operably engaged with each other.

[0013] The specific technical effect is that the first elastic assembly drives the pressing block to rise and fall, and the second elastic assembly drives the clamping block to rise and fall, ensuring that the pressing block and the clamping block can be engaged with each other after the auxiliary scale is received in the receiving groove, thereby fixing the auxiliary scale.

[0014] Further, the first elastic assembly includes a first connecting rod, a first spring, and a first fixing plate. A clamping groove is formed by a side wall of the receiving groove recessing towards the upper end face of the main scale. A first groove is formed inside the main scale. The first groove is located above the clamping groove. A pressing block is arranged at the upper end of the first connecting rod. The first connecting rod sequentially passes through the first groove and the clamping groove and is slidably connected to the main scale. The pressing block is located in the clamping groove and is connected to the lower end of the first connecting rod. The first spring and the first fixing plate are both located in the first groove. Two ends of the first spring are respectively connected to the top of the first groove and the first fixing plate. The first fixing plate is located at the bottom of the first groove and is sleeved on the first connecting rod.

[0015] The specific technical effect is as follows: By providing a pressing block, it is convenient to press and lift the extrusion block. A first groove is designed for installing and fixing the first spring. The first fixing plate is connected to the first spring, facilitating the reset of the first fixing plate. When it is necessary to store the secondary scale, the first connecting rod and the extrusion block are lifted by the pressing block, causing the extrusion block to retract into the card slot. When the secondary scale is rotated into the storage slot, the pressing block is released, and the elastic force of the first spring is used to reset the first fixing plate, the first connecting rod, and the extrusion block. At this time, the extrusion block extends out of the card slot and forms a clamping connection with the clamping block, thereby limiting and fixing the secondary scale.

[0016] Further, the second elastic component includes a second spring, a second fixing plate, and a second connecting rod. A second groove is formed on the secondary scale. The second spring, the second fixing plate, and the second connecting rod are sequentially connected and are all located within the second groove. The lower end of the second spring is connected to the bottom of the second groove, and the upper end of the second connecting rod is connected to the clamping block.

[0017] The specific technical effect is as follows: The clamping block is reset by the second spring.

[0018] Further, a fixing block is respectively provided at both ends of the rotating shaft. Installation grooves for installing the fixing blocks are respectively formed on the upper and lower end faces of the main scale. A scale disk is installed on one of the fixing blocks.

[0019] The specific technical effect is as follows: The rotating shaft is rotatably clamped on the main scale by the fixing block, and by providing the scale disk, it is convenient to observe the numerical value when measuring the angle.

[0020] Further, both the card strip and the clamping block are made of semi-flexible materials.

[0021] The specific technical effect is as follows: Using semi-flexible materials facilitates rotation.

[0022] Further, the length of the storage slot is greater than the length of the secondary scale, and the width of the storage slot is greater than the width of the secondary scale.

[0023] The specific technical effect is as follows: With this size design, it is convenient to store the secondary scale.

[0024] Further, a limiting block is provided at the bottom of the storage slot. The limiting block extends in the direction towards the rotating shaft, and the other end of the secondary scale can be operably abutted against the limiting block.

[0025] The specific technical effect is as follows: By providing the limiting block, the secondary scale is further limited to prevent the secondary scale from rotating clockwise or counterclockwise within the storage slot.

[0026] The beneficial effects of the present utility model are:

[0027] By setting the telescopic component to drive the clamping strip to expand and contract, it is convenient to perform internal and external right-angle detection during housing safety inspection. When the clamping strip extends out of the third groove and abuts against the clamping plate on the secondary scale, the stability of the secondary scale is higher, and it will not shift easily during measurement, thereby making the measurement more accurate; by setting the storage groove, it is convenient to store the secondary scale.

[0028] To make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, provides a detailed description as follows. Description of the Drawings

[0029] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following-described drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 is a schematic structural diagram of the use state of the present utility model;

[0031] Figure 2 is Figure 1 a cross-sectional view of the secondary scale of

[0032] Figure 3 is Figure 1 a cross-sectional view of the main scale of

[0033] Figure 4 is Figure 3 an enlarged view of part D in

[0034] Figure 5 is Figure 1 a longitudinal cross-sectional view of the secondary scale and a transverse cross-sectional view of the main scale of

[0035] Figure 6 is a schematic structural diagram of the storage state of the present utility model;

[0036] Figure 7 is a measurement schematic diagram of the present utility model and the wall when measuring an external right angle;

[0037] Figure 8 is a measurement schematic diagram of the present utility model and the wall when measuring an internal right angle.

[0038] In the figure:

[0039] 1. Main scale; 2. Auxiliary scale; 3. Control button; 4. Dial; 5. Pressing block; 6. Storage groove; 7. Rotating shaft; 8. Fixed block; 9. First groove; 10. First connecting rod; 11. First spring; 12. First fixing plate; 13. Card slot; 14. Extrusion block; 15. Second groove; 16. Second spring; 17. Second fixing plate; 18. Second connecting rod; 19. Card plate; 20. Electric telescopic rod; 21. Fixed ring; 22. Card strip; 23. Third groove; 24. Block; 25. Limit block. Detailed implementation mode

[0040] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0041] As Figures 1 to 8 shown, an internal and external right angle detection ruler for housing safety detection includes a main scale 1 and an auxiliary scale 2. One end of the main scale 1 is recessed inward to form a storage groove 6 for storing the auxiliary scale 2. One end of the auxiliary scale 2 is provided with a rotating shaft 7, and one end of the auxiliary scale 2 is rotatably connected to one end of the main scale 1 through the rotating shaft 7;

[0042] On the opposite sides of the storage groove 6, a third groove 23 is relatively provided, and each third groove 23 is provided with a telescopic assembly. A plurality of card strips 22 are provided on the telescopic end of each telescopic assembly. The telescopic end of the telescopic assembly can drive the card strips 22 to approach or move away from the auxiliary scale 2 telescopically. Card plates 19 are respectively provided on both sides of the auxiliary scale 2, and the card plate 19 is engaged with any one of the card strips 22.

[0043] It should be noted here that: by setting the telescopic assembly to drive the card strips 22 to expand and contract, it is convenient for the card strips 22 to extend out of the third groove 23 and engage with the card plate 19 on the auxiliary scale 2 during the internal and external right angle detection of housing safety detection, making the auxiliary scale 2 more stable and not easily shifting during measurement, thereby making the measurement accuracy higher; by setting the storage groove 6, it is convenient to store the auxiliary scale 2.

[0044] The telescopic assembly includes an electric telescopic rod 20 and a fixed ring 21. The fixed ring 21 is arranged on the output end of the electric telescopic rod 20. The fixed ring 21 is located in the third groove 23 and is movably sleeved on the rotating shaft 7. A plurality of card strips 22 are arranged on the end face of the fixed ring 21 facing the auxiliary scale 2. Two control buttons 3 are arranged on the main scale 1, and each electric telescopic rod 20 is electrically connected to a control button 3.

[0045] It should be noted here that the control button 3 controls the telescopic movement of the output end of the electric telescopic rod 20, thereby driving the fixed ring 21 to rise and fall. When performing the internal and external right-angle detection of the house safety inspection, the clamping strip 22 extends out of the third groove 23 and is clamped against the clamping plate 19 on the secondary scale 2 to block the clamping plate 19, so that the secondary scale 2 has higher stability and will not easily shift during measurement.

[0046] A number of clamping strips 22 are arranged in a spoke-like manner on the end face of the fixed ring 21 facing the secondary scale 2.

[0047] At the other end of the main scale 1, a first elastic component is provided. At the lower end of the first elastic component, an extrusion block 14 is provided. Inside the other end of the secondary scale 2, a second elastic component is provided. At the upper end of the second elastic component, a clamping block 24 is provided. The extrusion block 14 and the clamping block 24 are operably engaged with each other.

[0048] It should be noted here that the first elastic component drives the extrusion block 14 to rise and fall, and the second elastic component drives the clamping block 24 to rise and fall, ensuring that the extrusion block 14 and the clamping block 24 can be engaged with each other after the secondary scale 2 is received into the receiving groove 6, thereby fixing the secondary scale 2.

[0049] The first elastic component includes a first connecting rod 10, a first spring 11, and a first fixing plate 12. A side wall of the receiving groove 6 is recessed towards the upper end face of the main scale 1 to form a clamping groove 13. A first groove 9 is formed inside the main scale 1. The first groove 9 is located above the clamping groove 13. At the upper end of the first connecting rod 10, a pressing block 5 is provided. The first connecting rod 10 sequentially passes through the first groove 9 and the clamping groove 13 and is slidably connected to the main scale 1. The extrusion block 14 is located in the clamping groove 13 and is connected to the lower end of the first connecting rod 10. The first spring 11 and the first fixing plate 12 are both located in the first groove 9. The two ends of the first spring 11 are respectively connected to the top of the first groove 9 and the first fixing plate 12. The first fixing plate 12 is located at the bottom of the first groove 9 and is sleeved on the first connecting rod 10.

[0050] It should be noted here that the size of the clamping groove 13 is the same as that of the extrusion block 14, which is convenient for accommodating the extrusion plate. By providing the pressing block 5, it is convenient to press and lift the extrusion block 14. The first groove 9 is designed to install and fix the first spring 11. The first fixing plate 12 is connected to the first spring 11, which is convenient for resetting the first fixing plate 12. When the secondary scale 2 needs to be received, the first connecting rod 10 and the extrusion block 14 are lifted by the pressing block 5, so that the extrusion block 14 retracts into the clamping groove 13. When the secondary scale 2 is rotated into the receiving groove 6, the pressing block 5 is released, and the elastic force of the first spring 11 is used to reset the first fixing plate 12, the first connecting rod 10, and the extrusion block 14. At this time, the extrusion block 14 extends out of the clamping groove 13 and forms a clamping against the clamping block 24, thereby limiting and fixing the secondary scale 2.

[0051] The second elastic component includes a second spring 16, a second fixing plate 17 and a second connecting rod 18. A second groove 15 is formed in the auxiliary scale 2. The second spring 16, the second fixing plate 17 and the second connecting rod 18 are connected in sequence and are all located in the second groove 15. The lower end of the second spring 16 is connected to the bottom of the second groove 15, and the upper end of the second connecting rod 18 is connected to the clamping block 24.

[0052] It should be noted here that: the clamping block 24 is reset by the second spring 16.

[0053] The clamping block 24 is arranged in a triangular prism structure. One parallelogram side of the triangular prism is inclined downward towards the main scale 1, and the extrusion block 14 abuts against the adjacent parallelogram side.

[0054] Both ends of the rotating shaft 7 are respectively provided with a fixing block 8. Installation grooves for installing the fixing block 8 are respectively formed on the upper and lower end faces of the main scale 1. A scale disk 4 is installed on one of the fixing blocks 8.

[0055] It should be noted here that: the rotating shaft 7 is rotatably clamped on the main scale 1 through the fixing block 8, and by setting the scale disk 4, it is convenient to observe the value when measuring the angle.

[0056] Both the clamping strip 22 and the clamping block 24 are made of semi-flexible materials.

[0057] It should be noted here that: the semi-flexible material is synthetic rubber. Using the semi-flexible material is convenient for rotation.

[0058] The length of the storage groove 6 is greater than the length of the auxiliary scale 2, and the width of the storage groove 6 is greater than the width of the auxiliary scale 2.

[0059] It should be noted here that: adopting this kind of size design is convenient for storing the auxiliary scale 2.

[0060] A limiting block 25 is arranged at the bottom of the storage groove 6. The limiting block 25 extends towards the rotating shaft 7, and the other end of the auxiliary scale 2 is operably abutted against the limiting block 25.

[0061] It should be noted here that: by setting the limiting block 25, the auxiliary scale 2 is further limited to prevent the auxiliary scale 2 from rotating clockwise or counterclockwise in the storage groove 6.

[0062] The working principle of the present utility model is as follows:

[0063] When in use, by pulling up the pressing block 5, the pressing plate is retracted into the card slot 13 to release the clamping block 24, and then the auxiliary scale 2 is rotated to rotate the auxiliary scale 2 out of the storage groove 6 to make the detection scale in an open state; select the inner and outer angles to be measured according to the needs. If it is necessary to measure an external right angle, refer to Figure 7As shown in the figure, press one of the control buttons 3, and the electric telescopic rod 20 at the upper end of the main ruler 1 extends downward, driving the fixed ring 21 to move towards the sub-ruler 2, so that the clamping strip 22 extends out of the third groove 23 and abuts against the clamping plate 19 on the sub-ruler 2. Then, fit the main ruler 1 against an outer wall to be measured in the house, and rotate the sub-ruler 2 clockwise until it fits against another outer wall. At this time, the clamping plate 19 on the sub-ruler 2 is in front of a clamping strip 22, that is, the clamping strip 22 abuts against the clamping plate 19 in the counterclockwise direction, making the sub-ruler 2 unable to rotate counterclockwise. The angle rotated by the rotating shaft 7 is displayed on the dial 4, and the angle of the outer right angle at the measurement point can be measured. When measuring the inner right angle, refer to Figure 8 As shown in the figure, press the other control button 3, and the electric telescopic rod 20 at the lower end of the main ruler 1 extends upward, driving the fixed ring 21 to move towards the sub-ruler 2, so that the clamping strip 22 extends out of the third groove 23 and abuts against the clamping plate 19 on the sub-ruler 2. Then, fit the main ruler 1 against an inner wall to be measured in the house, and rotate the sub-ruler 2 counterclockwise until it fits against another inner wall. At this time, the clamping plate 19 on the sub-ruler 2 is behind a clamping strip 22, that is, the clamping strip 22 abuts against the clamping plate 19 in the clockwise direction, making the sub-ruler 2 unable to rotate clockwise; the angle rotated by the rotating shaft 7 is displayed on the dial 4, and the angle of the inner right angle at the measurement point can be measured;

[0064] When it needs to be retracted, press the control button 3, and the electric telescopic rod 20 retracts, driving the fixed ring 21 to move away from the sub-ruler 2, so that the clamping plate 19 disengages from between the clamping strips 22. Then rotate the sub-ruler 2 to make it enter the storage groove 6. Lift the first connecting rod 10 and the extrusion block 14 by pressing the pressing block 5, so that the extrusion block 14 retracts into the card slot 13. When the sub-ruler 2 is rotated into the storage groove 6, release the pressing block 5, and use the elastic force of the first spring 11 to reset the first fixing plate 12, the first connecting rod 10 and the extrusion block 14. At this time, the extrusion block 14 extends out of the card slot 13 and forms a stop against the card block 24, thereby limiting and fixing the sub-ruler 2.

[0065] In summary, the beneficial effects of the present utility model are:

[0066] By setting the telescopic assembly to drive the clamping strip 22 to expand and contract, it is convenient to detect the inner and outer right angles during the safety inspection of the house. The clamping strip 22 extends out of the third groove 23 and abuts against the clamping plate 19 on the sub-ruler 2, making the sub-ruler 2 more stable and not easily shifting during measurement, thereby making the measurement more accurate; by setting the storage groove 6, it is convenient to store the sub-ruler 2.

[0067] All the devices selected in this application are common standard parts or components known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0068] In the description of the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0069] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0070] Based on the above inspiration from the ideal embodiments of the present utility model, through the above description, relevant workers can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An internal and external right-angle inspection ruler for housing safety inspection, characterized in that, Including: A main scale (1) and a secondary scale (2), one end of the main scale (1) is recessed inward to form a storage groove (6) for storing the secondary scale (2), one end of the secondary scale (2) is provided with a rotating shaft (7), and one end of the secondary scale (2) is rotatably connected to one end of the main scale (1) through the rotating shaft (7); On both side walls of the storage groove (6), a third groove (23) is oppositely provided. Each third groove (23) is provided with a telescopic component. A plurality of clamping bars (22) are provided on the telescopic end of each telescopic component. The telescopic end of the telescopic component can telescopically drive the clamping bars (22) to approach or move away from the secondary scale (2). Clamping plates (19) are respectively provided on both side walls of the secondary scale (2), and the clamping plate (19) is in clamping contact with any one of the clamping bars (22).

2. The inside and outside right angle inspection ruler for housing safety inspection as described in claim 1, characterized in that, The telescopic component includes an electric telescopic rod (20) and a fixing ring (21). The fixing ring (21) is provided on the output end of the electric telescopic rod (20). The fixing ring (21) is located in the third groove (23) and is movably sleeved on the rotating shaft (7). A plurality of the clamping bars (22) are provided on the end face of the fixing ring (21) facing the secondary scale (2). Two control buttons (3) are provided on the main scale (1), and each electric telescopic rod (20) is electrically connected to one of the control buttons (3).

3. A right-angle detector for internal and external use in housing safety inspection as described in claim 2, characterized in that, A plurality of the clamping bars (22) are distributed in a spoke-like manner on the end face of the fixing ring (21) facing the secondary scale (2).

4. A right-angle inspection ruler for internal and external use in housing safety inspection as described in claim 1, characterized in that, A first elastic component is provided on the other end of the main scale (1). A pressing block (14) is provided at the lower end of the first elastic component. A second elastic component is provided inside the other end of the secondary scale (2). A clamping block (24) is provided at the upper end of the second elastic component. The pressing block (14) and the clamping block (24) are operably engaged with each other.

5. A right-angle detector for internal and external use in housing safety inspection as described in claim 4, characterized in that, The first elastic component includes a first connecting rod (10), a first spring (11), and a first fixing plate (12). One side wall of the storage groove (6) is recessed towards the upper end face of the main scale (1) to form a clamping groove (13). A first groove (9) is opened inside the main scale (1). The first groove (9) is located above the clamping groove (13). A pressing block (5) is provided at the upper end of the first connecting rod (10). The first connecting rod (10) sequentially passes through the first groove (9) and the clamping groove (13) and is slidably connected to the main scale (1). The pressing block (14) is located in the clamping groove (13) and is connected to the lower end of the first connecting rod (10). The first spring (11) and the first fixing plate (12) are both located in the first groove (9). Two ends of the first spring (11) are respectively connected to the top of the first groove (9) and the first fixing plate (12). The first fixing plate (12) is located at the bottom of the first groove (9) and is sleeved on the first connecting rod (10).

6. The inside and outside right angle inspection ruler for housing safety inspection according to claim 4, characterized in that The second elastic component includes a second spring (16), a second fixing plate (17) and a second connecting rod (18). A second groove (15) is formed in the secondary scale (2). The second spring (16), the second fixing plate (17) and the second connecting rod (18) are sequentially connected and are all located in the second groove (15). The lower end of the second spring (16) is connected to the bottom of the second groove (15), and the upper end of the second connecting rod (18) is connected to the clamping block (24).

7. A right-angle detector for indoor and outdoor building safety inspection according to claim 4, characterized in that, Both the clamping strip (22) and the clamping block (24) are made of semi-flexible materials.

8. A right-angle detector for internal and external use in building safety inspection according to claim 1, characterized in that, Both ends of the rotating shaft (7) are respectively provided with a fixing block (8). Installation grooves for installing the fixing blocks (8) are respectively formed in the upper and lower end faces of the main scale (1). A scale disk (4) is installed on one of the fixing blocks (8).

9. The inside and outside right angle inspection ruler for housing safety inspection according to claim 1, characterized in that, The length of the storage groove (6) is greater than the length of the secondary scale (2), and the width of the storage groove (6) is greater than the width of the secondary scale (2).

10. A right-angle detector for indoor and outdoor building safety inspection as described in claim 1, characterized in that, A limiting block (25) is arranged at the bottom of the storage groove (6). The limiting block (25) extends towards the direction of the rotating shaft (7), and the other end of the secondary scale (2) is operably abutted against the limiting block (25).

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