Steel structure installation angle measuring device

Abstract

The invention discloses a steel structure installation angle measuring device, and relates to the technical field of angle measurement, and the technical scheme is that the steel structure installation angle measuring device comprises a first measuring plate, the bottom of the first measuring plate is provided with a second measuring plate, and the first measuring plate and the second measuring plate are each provided with a first groove; the number of the measuring guide plates is two, and the two measuring guide plates are arranged in the two first grooves in a sliding mode respectively. The U-shaped frame is fixedly connected to the top of the second measuring plate, a rotating shaft I is embedded in the U-shaped frame, and a rotating block fixedly sleeves the outside of the rotating shaft I. The device has the beneficial effects that when the knob is loosened, the outer frame, the rubber pad and other parts can move downwards to press and fix the rotating shaft III, so that the rotating shaft III can be prevented from rotating randomly; the first rotating shaft, the rotating block, the first measuring plate and other components are prevented from rotating at will, so that the angle between the first measuring plate and the second measuring plate can be prevented from changing, and the process of measuring the photographing mark is more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of angle measurement, and particularly relates to an angle measurement device for steel structure installation. Background Art

[0002] During the assembly of steel structure rods or plates in building construction, in order to ensure the accuracy of building structure assembly, an angle measurement device is required to measure the angles of the installed components after installation; When using the existing angle measurement device, it is found that the angle between the two measurement plates is likely to change. When taking pictures for record during measurement, one hand needs to hold the measurement device while taking pictures, which is rather inconvenient. Therefore, improvement is needed; Therefore, it is very necessary to invent an angle measurement device for steel structure installation. Summary of the Invention

[0003] Therefore, the present invention provides an angle measurement device for steel structure installation to solve the problems in the background art.

[0004] In order to achieve the above object, the present invention provides the following technical solution: An angle measurement device for steel structure installation, comprising: A first measurement plate, a second measurement plate is provided at the bottom of the first measurement plate, and a first groove is opened on both the first measurement plate and the second measurement plate; Measurement guide plates, two of them are provided, and the two measurement guide plates are respectively slidably arranged in the two first grooves; A U-shaped frame, which is fixedly connected to the top of the second measurement plate, a first rotating shaft is embedded in the U-shaped frame, and a rotating block is fixedly sleeved outside the first rotating shaft, and the rotating block is fixedly connected to the bottom of the first measurement plate; An auxiliary component, which is used to prevent the opening and closing angle from changing; A telescopic component, which is used to make the two measurement guide plates telescopically move on the first measurement plate and the second measurement plate.

[0005] Preferably, the auxiliary component includes: An engagement block, which is fixedly connected to the top of the second measurement plate, a second rotating shaft is embedded in the engagement block, and a first cavity is also opened on the engagement block, and the second rotating shaft penetrates through the first cavity; A first bevel gear, which is fixedly connected to the front end of the first rotating shaft, a second bevel gear meshingly connected with the first rotating shaft is provided at the front end of the first rotating shaft, a third rotating shaft is fixedly connected to one side of the second bevel gear, the third rotating shaft is embedded in the second rotating shaft, and the third rotating shaft and the second rotating shaft are connected through a bearing; A ribbed groove, which is opened on the second rotating shaft, a ribbed rod is slidably arranged in the ribbed groove, a fixing block is fixedly sleeved outside one end of the ribbed rod, and a knob is fixedly sleeved outside the fixing block; The angle display dial is fixedly connected to the front side of the second measuring plate. A rotating rod is fixedly connected to the front side of the second bevel gear. The rotating rod penetrates through the angle display dial. An indicating needle is fixedly connected to one side of the rotating rod. The indicating needle is located inside the angle display dial. The rotating rod is connected to the angle display dial through a bearing.

[0006] Preferably, the auxiliary component further includes: The second groove is opened at the top of the second measuring plate. A moving block is slidably arranged in the second groove. The moving block is sleeved outside the knob and is connected to the knob through a bearing. The first box body is fixedly connected to the second groove. A first through groove is opened on one side of the first box body. A first piston is arranged inside the first box body. A first moving rod is fixedly connected between the first piston and the moving block. The first moving rod penetrates through the first through groove. A spring is arranged inside the first box body, and two ends of the spring are respectively fixedly connected to the first piston and the inner wall of the other side of the first box body. The second box body is fixedly embedded on the second measuring plate. A second through groove is opened at the top of the second box body. A second piston is arranged inside the second box body. An outer frame is sleeved outside the third rotating shaft. A rubber pad is fixedly connected to the inner wall of the outer frame. The rubber pad is in contact with the third rotating shaft. A second moving rod is fixedly connected between the outer frame and the second piston. The second moving rod penetrates through the second through groove. A first pipeline is fixedly connected between the second box body and the first box body.

[0007] Preferably, the first moving rod is in sliding contact with the first through groove, the first piston is in sliding contact with the first box body, the second moving rod is in sliding contact with the second through groove, and the second piston is in sliding contact with the second box body.

[0008] Preferably, the telescopic component includes: Two third box bodies are respectively fixedly embedded on the first measuring plate and the second measuring plate. A third through groove is opened on one side of each of the two third box bodies. A third piston is arranged inside each of the two third box bodies. A third moving rod is fixedly connected between each of the two third pistons and the two measuring guide plates respectively. The two third moving rods respectively penetrate through the two third through grooves. The fourth box body is fixedly connected to the second measuring plate. The fourth box body is located behind the connecting block. A fourth through groove is opened on one side of the fourth box body. A fourth piston is arranged inside the fourth box body. A fourth moving rod is fixedly connected to one side of the fourth piston and penetrates through the fourth through groove. The second pipeline is fixedly connected between the fourth box body and one of the third box bodies. The second pipeline is fixedly embedded on the second measuring plate. The flexible hose is fixedly connected between the fourth box body and the other third box body. A second cavity is opened on the first measuring plate. The flexible hose is located inside the second cavity.

[0009] Preferably, the telescopic component further includes: Support blocks, which are provided in two numbers, both of the two support blocks are fixedly connected to the second measuring plate, threaded rods are embedded in the two second measuring plates, a threaded block is sleeved outside the threaded rod, and the threaded block is threadedly connected to the threaded rod; A moving plate, which is fixedly connected between the threaded block and the fourth moving rod, a guiding rod is fixedly connected to the second measuring plate, and the guiding rod penetrates through the threaded block and is in sliding contact with it; A mounting seat, which is sleeved outside the threaded rod, sprockets are fixedly sleeved outside both the mounting seat and the second rotating shaft, chains are sleeved outside the two sprockets, the two sprockets are driven and connected by the chains, and the chains are located in the first cavity.

[0010] Preferably, the third piston is in sliding contact with the third box body, the third moving rod is in sliding contact with the third through groove, the fourth piston is in sliding contact with the fourth box body, and the fourth moving rod is in sliding contact with the fourth through groove.

[0011] Preferably, the first rotating shaft is connected to the U-shaped frame through a bearing.

[0012] Preferably, the second rotating shaft is connected to the connecting block through a bearing.

[0013] Preferably, the threaded rod is connected to the support block through a bearing.

[0014] The beneficial effects of the present invention are as follows: 1. By designing the auxiliary component, when measuring the angle, it is necessary to push the knob to move the moving block, so that the air in the first box body can enter the second box body, so that components such as the second piston, the second moving rod, the outer frame, and the rubber pad move upward, thereby releasing the fixation of the third rotating shaft. When the knob is released, components such as the outer frame and the rubber pad will move downward to press and fix the third rotating shaft, thereby avoiding the random rotation of the third rotating shaft, and further avoiding the random rotation of components such as the first rotating shaft, the rotating block, and the first measuring plate. In this way, the angle between the first measuring plate and the second measuring plate can be avoided from changing, making the process of measuring, photographing, and leaving marks more convenient; 2. By designing the telescopic component, the lengths of the first measuring plate and the second measuring plate can be adjusted during measurement, so that the length of the measuring arm can be flexibly adjusted according to different measurement objects and measurement ranges, increasing the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained by extending according to the provided drawings without creative efforts.

[0016] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure provided by the present invention; Figure 2 It is the front sectional view provided by the present invention Figure 1 ; Figure 3 It is provided by the present invention Figure 2 The enlarged view at position A in Figure 4 It is provided by the present invention Figure 2 The enlarged view at position B in Figure 5 It is the front sectional view provided by the present invention Figure 2 ; Figure 6 It is the three-dimensional view of components such as housing one, housing two, bevel gear one, bevel gear two, etc. provided by the present invention; Figure 7 It is provided by the present invention Figure 6 The exploded three-dimensional view; Figure 8 It is the three-dimensional view of components such as the knob, rotating shaft two, chain, housing three, etc. provided by the present invention; Figure 9 It is provided by the present invention Figure 8 The exploded three-dimensional view; Figure 10 It is the rear three-dimensional view provided by the present invention; In the figure: 1. First measuring plate; 2. Second measuring plate; 3. First groove; 4. Measuring guide plate; 5. U-shaped frame; 6. First rotating shaft; 7. Rotating block; 8. Connecting block; 9. Second rotating shaft; 10. First bevel gear; 11. Second bevel gear; 12. Third rotating shaft; 13. Prismatic groove; 14. Prismatic rod; 15. Fixed block; 16. Knob; 17. Second groove; 18. Moving block; 19. First box body; 20. First piston; 21. First moving rod; 22. Spring; 23. Second box body; 24. Second piston; 25. Outer frame; 26. Rubber pad; 27. Second moving rod; 28. First pipeline; 29. Third box body; 30. Third piston; 31. Third moving rod; 32. Fourth box body; 33. Fourth piston; 34. Fourth moving rod; 35. Second pipeline; 36. Hose; 37. Support block; 38. Threaded rod; 39. Threaded block; 40. Moving plate; 41. Guide rod; 42. Mounting seat; 43. Sprocket; 44. Chain; 45. Angle display dial; 46. Rotating rod; 47. Indicator needle. Detailed implementation manners

[0018] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0019] Referring to the attached Figure 1 - attached Figure 10 , a steel structure installation angle measuring device provided by the present invention includes: A first measuring plate 1, a second measuring plate 2 is provided at the bottom of the first measuring plate 1, and first grooves 3 are opened on both the first measuring plate 1 and the second measuring plate 2; Measuring guide plates 4, two of them are provided, and the two measuring guide plates 4 are respectively slidably arranged in the two first grooves 3; A U-shaped frame 5, which is fixedly connected to the top of the second measuring plate 2, a first rotating shaft 6 is embedded in the U-shaped frame 5, a rotating block 7 is fixedly sleeved outside the first rotating shaft 6, and the rotating block 7 is fixedly connected to the bottom of the first measuring plate 1; An auxiliary component, which is used to prevent the opening and closing angle from changing; A telescopic component, which is used to make the two measuring guide plates 4 telescopically move on the first measuring plate 1 and the second measuring plate 2; The auxiliary component includes: A connecting block 8, which is fixedly connected to the top of the second measuring plate 2, a second rotating shaft 9 is embedded in the connecting block 8, and a first cavity is also opened in the connecting block 8, and the second rotating shaft 9 penetrates through the first cavity; A first bevel gear 10, which is fixedly connected to the front end of the first rotating shaft 6, a second bevel gear 11 meshingly connected with the front end of the first rotating shaft 6 is provided on the front end of the first rotating shaft 6, a third rotating shaft 12 is fixedly connected to one side of the second bevel gear 11, the third rotating shaft 12 is embedded in the second rotating shaft 9, and the third rotating shaft 12 and the second rotating shaft 9 are connected by a bearing; A rib groove 13 is formed on the second rotating shaft 9. A rib rod 14 is slidably arranged in the rib groove 13. A fixing block 15 is fixedly sleeved on the outer part of one end of the rib rod 14, and a knob 16 is fixedly sleeved on the outer part of the fixing block 15. An angle display dial 45 is fixedly connected to the front side of the second measuring plate 2. A rotating rod 46 is fixedly connected to the front side of the second bevel gear 11. The rotating rod 46 penetrates through the angle display dial 45. An indicating needle 47 is fixedly connected to one side of the rotating rod 46. The indicating needle 47 is located inside the angle display dial 45. The rotating rod 46 is connected to the angle display dial 45 through a bearing.

[0020] The auxiliary assembly further includes: A second groove 17 is formed on the top of the second measuring plate 2. A moving block 18 is slidably arranged in the second groove 17. The moving block 18 is sleeved on the outer part of the knob 16 and is connected to the knob 16 through a bearing. A first box body 19 is fixedly connected in the second groove 17. A first through groove is formed on one side of the first box body 19. A first piston 20 is arranged inside the first box body 19. A first moving rod 21 is fixedly connected between the first piston 20 and the moving block 18. The first moving rod 21 penetrates through the first through groove. A spring 22 is arranged inside the first box body 19, and both ends of the spring 22 are fixedly connected to the first piston 20 and the inner wall of the other side of the first box body 19 respectively. A second box body 23 is fixedly embedded on the second measuring plate 2. A second through groove is formed on the top of the second box body 23. A second piston 24 is arranged inside the second box body 23. An outer frame 25 is sleeved on the outer part of the third rotating shaft 12. A rubber pad 26 is fixedly connected to the inner wall of the outer frame 25. The rubber pad 26 is in contact with the third rotating shaft 12. A second moving rod 27 is fixedly connected between the outer frame 25 and the second piston 24. The second moving rod 27 penetrates through the second through groove. A first pipeline 28 is fixedly connected between the second box body 23 and the first box body 19. The first moving rod 21 is in sliding contact with the first through groove. The first piston 20 is in sliding contact with the first box body 19. The second moving rod 27 is in sliding contact with the second through groove. The second piston 24 is in sliding contact with the second box body 23. In this embodiment, an auxiliary assembly is designed. When measuring the angle, the knob 16 needs to be pushed to move the moving block 18, so that the air in the first box body 19 can enter the second box body 23, so that components such as the second piston 24, the second moving rod 27, the outer frame 25, and the rubber pad 26 can move upward, thereby releasing the fixation of the third rotating shaft 12. When the knob 16 is released, components such as the outer frame 25 and the rubber pad 26 will move downward to tightly fix the third rotating shaft 12, so as to avoid the random rotation of the third rotating shaft 12, and further avoid the random rotation of components such as the first rotating shaft 6, the rotating block 7, and the first measuring plate 1. In this way, the angle between the first measuring plate 1 and the second measuring plate 2 can be prevented from changing. Among them, in order to achieve the purpose of adjusting the length of the measuring arm, the present device is implemented by the following technical solutions: The telescopic assembly includes: two third boxes 29, which are respectively fixedly embedded in the first measuring plate 1 and the second measuring plate 2. A third through groove is provided on one side of each of the two third boxes 29. A third piston 30 is provided inside each of the two third boxes 29. A third moving rod 31 is fixedly connected between each of the two third pistons 30 and each of the two measuring guide plates 4, and the two third moving rods 31 respectively penetrate through the two third through grooves; A fourth box 32, which is fixedly connected to the second measuring plate 2. The fourth box 32 is located behind the connecting block 8. A fourth through groove is provided on one side of the fourth box 32. A fourth piston 33 is provided inside the fourth box 32. A fourth moving rod 34 fixedly connected to one side of the fourth piston 33 penetrates through the fourth through groove; A second pipe 35, which is fixedly connected between the fourth box 32 and one of the third boxes 29, and the second pipe 35 is fixedly embedded in the second measuring plate 2; A flexible hose 36, which is fixedly connected between the fourth box 32 and the other third box 29. A second cavity is provided on the first measuring plate 1, and the flexible hose 36 is located inside the second cavity; The telescopic assembly further includes: two support blocks 37, which are both fixedly connected to the second measuring plate 2. A threaded rod 38 is embedded in each of the two second measuring plates 2. A threaded block 39 is sleeved outside the threaded rod 38, and the threaded block 39 is threadedly connected to the threaded rod 38; A moving plate 40, which is fixedly connected between the threaded block 39 and the fourth moving rod 34. A guide rod 41 is fixedly connected to the second measuring plate 2, and the guide rod 41 penetrates through the threaded block 39 and is in sliding contact with it; A mounting seat 42, which is sleeved outside the threaded rod 38. A sprocket 43 is fixedly sleeved outside each of the mounting seat 42 and the second rotating shaft 9. A chain 44 is sleeved outside the two sprockets 43, and the two sprockets 43 are drivingly connected by the chain 44. The chain 44 is located in the first cavity; The third piston 30 is in sliding contact with the third box 29, the third moving rod 31 is in sliding contact with the third through groove, the fourth piston 33 is in sliding contact with the fourth box 32, and the fourth moving rod 34 is in sliding contact with the fourth through groove. The telescopic assembly can enable the two measuring guide plates 4 to telescopically move on the first measuring plate 1 and the second measuring plate 2, thereby adjusting the length of the measuring arm; Among them, in order to achieve the purpose of reducing wear, the present device is implemented by the following technical solutions: The first rotating shaft 6 is connected to the U-shaped frame 5 through a bearing, the second rotating shaft 9 is connected to the connecting block 8 through a bearing, and the threaded rod 38 is connected to the support block 37 through a bearing. The bearing connection can reduce wear.

[0021] The usage process of the present invention is as follows: When it is necessary to measure the angle between two steel structure members, place the device on one steel structure so that the second measuring plate 2 fits against one steel structure. Then, hold the knob 16 and push it to the left. In this way, components such as the prism rod 14 and the moving block 18 can move to the left. When the moving block 18 moves, the first moving rod 21 and the first piston 20 can move to the left. Then, under the action of the first pipeline 28, the air in the first box 19 can enter the second box 23, and at the same time, the spring 22 is compressed. When the air enters, the second piston 24, the second moving rod 27, the outer frame 25, and the rubber pad 26 will all move upward. In this way, the rubber pad 26 is not in contact with the third rotating shaft 12, thus releasing the fixation of the third rotating shaft 12. Then, manually turn the first measuring plate 1 so that the first measuring plate 1 and the rotating block 7 rotate around the first rotating shaft 6. In this way, the first measuring plate 1 can fit against the other steel structure. When turning the first measuring plate 1, the first rotating shaft 6 will rotate accordingly. The rotation of the first rotating shaft 6 drives the first bevel gear 10 to rotate. The rotation of the first bevel gear 10 drives the second bevel gear 11 to rotate. The rotation of the second bevel gear 11 drives the third rotating shaft 12 to rotate. The rotation of the first bevel gear 10 can also drive the rotating rod 46 to rotate. The rotation of the rotating rod 46 drives the indicating needle 47 to rotate. In this way, after the first measuring plate 1 fits against the other steel structure, the angle between the two steel structures can be known; After fitting, release the knob 16. Then, under the action of the spring 22 rebounding, components such as the first piston 20, the second piston 24, the first moving rod 21, and the moving rod return to their original positions. Then, the rubber pad 26 will move downward to tightly fix the third rotating shaft 12, thereby avoiding the random rotation of the third rotating shaft 12, and further avoiding the random rotation of components such as the second bevel gear 11, the first bevel gear 10, the first rotating shaft 6, the rotating block 7, and the first measuring plate 1. In this way, the angle between the first measuring plate 1 and the second measuring plate 2 can be prevented from changing, making it more convenient during the process of measurement, photographing, and leaving traces; When in use, the knob 16 can be rotated. In this way, the prism rod 14 and the second rotating shaft 9 can rotate. The rotation of the second rotating shaft 9 can make the chain 44 rotate. The rotation of the chain 44 drives the mounting seat 42 to rotate. The rotation of the mounting seat 42 can make the threaded rod 38 rotate. The rotation of the threaded rod 38 drives the threaded block 39 to move to the left, and further makes the moving plate 40, the fourth moving rod 34, and the fourth piston 33 move to the left. Then, under the action of the hose 36 and the second pipeline 35, the air in the fourth box 32 will enter the two third boxes 29, and further make the two third pistons 30 and the two third moving rods 31 move to the right. The two third moving rods moving to the right can push the two measuring guide plates 4 to move to the right, thereby increasing the lengths of the first measuring plate 1 and the second measuring plate 2. In this way, according to different measurement objects and measurement ranges, the length of the measuring arm can be flexibly adjusted, increasing the applicable range of the device. When it is necessary to retract the measuring guide plate 4, directly rotate the knob 16 in the reverse direction.

[0022] The above are only the preferred embodiments of the present invention. Any person skilled in the art may modify the present invention by using the technical solutions described above or modify it into equivalent technical solutions. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A steel structure installation angle measuring device, characterized in that: include: A first measuring plate (1), wherein a second measuring plate (2) is provided at the bottom of the first measuring plate (1), and a groove 1 (3) is provided on both the first measuring plate (1) and the second measuring plate (2); A measuring guide plate (4), which is provided in two pieces, and the two measuring guide plates (4) are respectively slidably provided in the two grooves (3); A U-shaped frame (5) fixedly connected to the top of the second measuring plate (2), a rotating shaft (6) being embedded in the U-shaped frame (5), a rotating block (7) being fixedly sleeved outside the rotating shaft (6), and the rotating block (7) being fixedly connected to the bottom of the first measuring plate (1); An auxiliary component, which is used to prevent the opening and closing angle from changing; A telescopic assembly is used to enable two measuring guide plates (4) to move telescopically on a first measuring plate (1) and a second measuring plate (2).

2. A steel structure installation angle measuring device according to claim 1, characterized in that: The auxiliary components include: A connecting block (8) is fixedly connected to the top of the second measuring plate (2), a second rotating shaft (9) is embedded in the connecting block (8), a first cavity is also opened in the connecting block (8), and the second rotating shaft (9) passes through the first cavity; Bevel gear one (10) is fixedly connected to the front end of rotating shaft one (6), the front end of rotating shaft one (6) is provided with bevel gear two (11) meshingly connected therewith, one side of bevel gear two (11) is fixedly connected to rotating shaft three (12), the rotating shaft three (12) is embedded in rotating shaft two (9), and the rotating shaft three (12) is connected to rotating shaft two (9) via a bearing; A rib groove (13) is formed on the second rotating shaft (9), a rib rod (14) is slidably disposed in the rib groove (13), a fixing block (15) is disposed on the outer side of one end of the rib rod (14), and a knob (16) is disposed on the outer side of the fixing block (15); An angle display dial (45) is fixedly connected to the front side of the second measuring plate (2); a rotating rod (46) is fixedly connected to the front side of the second bevel gear (11); the rotating rod (46) passes through the angle display dial (45); an indicator needle (47) is fixedly connected to one side of the rotating rod (46); the indicator needle (47) is located inside the angle display dial (45); and the rotating rod (46) and the angle display dial (45) are connected via a bearing.

3. A steel structure installation angle measuring device according to claim 2, characterized in that: The auxiliary components also include: A second groove (17) is provided on the top of the second measuring plate (2), a moving block (18) is slidably arranged in the second groove (17), and the moving block (18) is sleeved on the outside of the knob (16) and connected to the knob (16) via a bearing; A box body (19) is fixedly connected to the groove (17), a through groove (1) is provided on one side of the box body (19), a piston (20) is provided inside the box body (19), a moving rod (21) is fixedly connected between the piston (20) and the moving block (18), the moving rod (21) passes through the through groove (1), a spring (22) is provided inside the box body (19), and two ends of the spring (22) are respectively fixedly connected to the piston (20) and the inner wall of the other side of the box body (19); The second box body (23) is fixedly embedded on the second measuring plate (2), the top of the second box body (23) is provided with a through groove (2), the interior of the second box body (23) is provided with a piston (24), the outer wall of the third rotating shaft (12) is provided with an outer frame (25), the inner wall of the outer frame (25) is fixedly connected with a rubber pad (26), the rubber pad (26) is in contact with the third rotating shaft (12), a moving rod (27) is fixedly connected between the outer frame (25) and the second piston (24), the moving rod (27) passes through the through groove (2), and a pipe (28) is fixedly connected between the second box body (23) and the first box body (19).

4. A steel structure installation angle measuring device according to claim 3, characterized in that: The moving rod 1 (21) is in sliding contact with the through groove 1, the piston 1 (20) is in sliding contact with the box body 1 (19), the moving rod 2 (27) is in sliding contact with the through groove 2, and the piston 2 (24) is in sliding contact with the box body 2 (23).

5. The steel structure installation angle measuring device according to claim 1, characterized in that: The telescopic assembly comprises: Box body three (29), which is provided in two pieces, the two box bodies three (29) are respectively fixedly embedded on the first measuring plate (1) and the second measuring plate (2), a through slot three is provided on one side of the two box bodies three (29), a piston three (30) is provided inside the two box bodies three (29), a moving rod three (31) is respectively fixedly connected between the two pistons three (30) and the two measuring guide plates (4), and the two moving rods three (31) respectively penetrate the two through slots three; A box body (4) (32) is fixedly connected to the second measuring plate (2), the box body (32) is located at the rear side of the connecting block (8), a through slot (4) is provided on one side of the box body (32), a piston (4) (33) is provided inside the box body (32), and a moving rod (4) (34) that passes through the through slot (4) is fixedly connected to one side of the piston (33); Pipeline 2 (35), which is fixedly connected between box body 4 (32) and one of the box bodies 3 (29), and the pipe 2 (35) is fixedly embedded in the second measuring plate (2); A hose (36) is fixedly connected between the box body four (32) and another box body three (29); a cavity two is opened on the first measuring plate (1), and the hose (36) is located inside the cavity two.

6. A steel structure installation angle measuring device according to claim 5, characterized in that: The telescopic assembly also includes: A support block (37), which is provided in two pieces, the two support blocks (37) are fixedly connected to the second measuring plate (2), the two second measuring plates (2) are embedded with threaded rods (38), the threaded rods (38) are sleeved with threaded blocks (39), and the threaded blocks (39) are connected to the threaded rods (38) by threads; A movable plate (40) is fixedly connected between the threaded block (39) and the movable rod four (34); a guide rod (41) is fixedly connected to the second measuring plate (2); the guide rod (41) passes through the threaded block (39) and is in sliding contact with the threaded block (39); The mounting seat (42) is sleeved on the outside of the threaded rod (38), and the mounting seat (42) and the second rotating shaft (9) are both fixedly sleeved with sprockets (43), and the two sprockets (43) are sleeved with chains (44) on their outsides. The two sprockets (43) are connected by driving via the chain (44), and the chain (44) is located in the first cavity.

7. A steel structure installation angle measuring device according to claim 6, characterized in that: The piston three (30) is in sliding contact with the box body three (29), the moving rod three (31) is in sliding contact with the through slot three, the piston four (33) is in sliding contact with the box body four (32), and the moving rod four (34) is in sliding contact with the through slot four.

8. A steel structure installation angle measuring device according to claim 1, characterized in that: The rotating shaft 1 (6) is connected to the U-shaped frame (5) via a bearing.

9. A steel structure installation angle measuring device according to claim 2, characterized in that: The second rotating shaft (9) is connected to the connecting block (8) via a bearing.

10. A steel structure installation angle measuring device according to claim 6, characterized in that: The threaded rod (38) is connected to the support block (37) via a bearing.

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