Engineering quality detection equipment based on green building design

Abstract

The application relates to the field of building engineering quality detection, and specifically discloses an engineering quality detection equipment based on green building design, which solves the problems of low efficiency and poor precision of manual green building engineering detection, and provides the following scheme, which comprises an electric trolley, a tray, a servo motor, a rotating disc, a laser total station, a three-dimensional laser scanner, a side plate, a top plate one, a top plate two, a support, a rotating shaft one, a mounting seat one, a mounting plate one, a mounting plate two, a position adjusting assembly, an angle adjusting assembly, a rotating shaft two, a supporting plate connected to the rotating shaft two, an extension rod three arranged at the lower end of the supporting plate, and a pad connected to the lower side output end of the extension rod three; and an unfolding assembly is further arranged on the electric trolley and used for driving each rotating shaft two and the supporting plate to rotate and unfold when the tray is moved. The device can efficiently and stably detect the quality of green building engineering, has high automation degree, and is more accurate in detection.

Description

Technical Field

[0001] This invention relates to the field of building engineering quality testing, and in particular to an engineering quality testing device based on green building design. Background Technology

[0002] Green building refers to buildings that, throughout their entire life cycle, maximize resource conservation (energy saving, land saving, water saving, and material saving), protect the environment, reduce pollution, provide people with healthy, suitable, and efficient living spaces, and coexist harmoniously with nature. From initial planning and design to construction, operation and maintenance, and even final demolition, the concept of green building is integrated throughout the entire process, striving to minimize environmental impact and maximize resource utilization at every stage. With the increasing demands for low-carbon and environmentally friendly living, and the growing environmental awareness of the public, more and more buildings are adopting green building design from the initial design phase.

[0003] However, existing green buildings, due to the adoption of many new technologies and high requirements for architectural details during construction, require frequent quality inspections. If these inspections are conducted manually using traditional methods, the inspection efficiency is low, there is a high risk of missed inspections, and the personnel requirements are high, which also increases costs. Therefore, this paper proposes an engineering quality inspection device based on green building design. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes an engineering quality testing device based on green building design. This device can conduct timely and high-progress testing during the construction of green buildings and transmit the test data back for manual verification, thereby improving the efficiency and accuracy of quality testing in green building testing facilities.

[0005] To solve the above-mentioned technical problems, the basic technical solution proposed by this invention is as follows:

[0006] An engineering quality testing device based on green building design includes an electric trolley with a tray on its upper end. Servo motors are symmetrically mounted on the upper and lower sides of the tray, and turntables are mounted on the output ends of the servo motors on opposite sides. A laser total station and a 3D laser scanner are symmetrically mounted on the opposite sides of the turntables on opposite sides. Side plates are connected to the front and rear sides of the turntables, and top plate one and top plate two are connected to the side plates. Brackets are connected to both sides of the front and rear ends of the electric trolley, and a rotating shaft is rotatably mounted inside each bracket. A mounting base is connected to the rotating shaft between the two brackets on opposite sides.

[0007] The mounting base is further provided with mounting plate 1 and mounting plate 2. The mounting base is also provided with an adjustment component, which is used to adjust the position of mounting plate 1 and mounting plate 2. The bracket is provided with an angle adjustment component, which is used to adjust the angle of mounting base 1. The front and rear ends of both sides of the electric trolley are rotatably fitted with rotating shaft 2, and the rotating shaft 2 is connected to a support plate. The lower end of the support plate is installed with a telescopic rod 3, and the lower output end of the telescopic rod 3 is connected to a pad. The electric trolley is also provided with an unfolding component, which is used to drive each rotating shaft 2 and support plate to rotate and unfold when the tray moves upward.

[0008] Preferably, a battery pack is installed inside the electric trolley, off-road wheels are installed on the electric trolley, and turntables on the upper and lower sides of the tray are also rotatably fitted with it.

[0009] Preferably, telescopic components are symmetrically installed on both sides of the upper end of the electric trolley, and each side has two telescopic components arranged symmetrically at the front and rear. Each side has a support base installed on the upper output end of the two telescopic components at the front and rear, and a drive motor is installed through the support base. The drive motors on both sides are close to each other and a tray is connected between the output ends on one side.

[0010] Preferably, both mounting plate one and mounting plate two have multiple universal bolt holes through which a level or rebound meter is installed.

[0011] Preferably, the adjustment assembly includes a telescopic rod one, a mounting base two, and a telescopic rod two. The telescopic rod one is fitted inside the mounting base one and passes through the mounting base one. The mounting base two is connected to the output end of the telescopic rod one on the side away from the tray. The telescopic rod two is fitted inside the mounting base two and passes through the mounting base two. The mounting plate one is connected to the side of the mounting base two away from the tray. The mounting plate two is connected to the output end of the lower side of the telescopic rod two.

[0012] Preferably, the angle adjustment assembly includes a gear, an opening, a slide block, a slide frame, a rack, and a frame. The gear is connected to the two rotating shafts on opposite sides of the two supports. The opening is formed on the supports and extends through both sides of the supports. The slide block is slidably fitted inside the opening and extends to the opposite side of the two supports. The slide frame is connected to the output end of the slide block on the opposite side of the two supports and is fitted on the outside of the gear on each side. The rack is connected to the inner wall of one side of the slide frame and meshes with the gear. The frame is connected to the two slide blocks and engages with the lower end of the top plate.

[0013] Preferably, a guide rod is connected between the upper and lower inner walls of the opening, the slide is slidably sleeved on the outside of the guide rod, and a spring sleeved on the outside of the guide rod is connected between the lower end of the slide and the lower inner wall of the opening.

[0014] Preferably, the unfolding assembly includes a second gear, a second guide rod, a sleeve, a second rack, and a sliding plate. The upper end of the second rotating shaft extends to the upper surface of the electric trolley. The second gear is fitted onto the upper extended end of the second rotating shaft. The second guide rod is connected to the upper surface of the electric trolley. The sleeve is slidably fitted onto the outside of the second guide rod. The second rack is connected to the side of the sleeve near the second gear and meshes with the second gear. The sliding plate is slidably disposed on the upper surface of the electric trolley, and a rotating plate is rotatably connected between the sliding plate and the sleeve via a spring hinge.

[0015] Preferably, multiple guide rods are provided, each guide rod being disposed on one side of the corresponding gear two. The electric trolley has grooves on both sides, and the rotating shaft two is rotatably sleeved between the upper and lower inner walls of the front and rear ends of the groove. The upper end of the rotating shaft two penetrates the upper inner wall of the groove and the upper end face of the electric trolley, extending to the top of the electric trolley, and is connected to the gear two through the upper extension end.

[0016] Preferably, the upper end face of the electric trolley is connected to a sliding rod, the sliding plate is slidably sleeved on the outside of the sliding rod, a second spring sleeved on the outside of the sliding rod is connected between the lower end face of the sliding plate and the upper end face of the electric trolley, and the telescopic rod is installed on the lower side of the front and rear side support plates that are close to each other.

[0017] The beneficial effects of this invention are:

[0018] 1. The technical solution of the present invention controls the movement of an electric trolley, thereby controlling the laser total station, 3D laser scanner, level, rebound hammer and other equipment mounted on it to move to the detection point for relevant detection, reducing the use of manual labor, improving the degree of automation, and improving the passability of the electric trolley by using off-road wheels, so that it can reach and conduct detection throughout the construction area.

[0019] 2. The technical solution of this invention, by controlling the upward movement of the telescopic component, can drive the tray upward, thereby driving the laser total station and 3D laser scanner upward. The tray is rotated via a drive motor to reverse their orientation, and the laser total station or 3D laser scanner positioned above the adjusted tray is then controlled to operate and collect environmental data of the construction space. During this process, top plate one and top plate two move upward, and under the elastic force of spring one, they will push the slide and rack one upward, thereby driving gear one and shaft one to rotate, thus activating the level or rebound spring mounted on mounting plate one and mounting plate two. The tray rotates downwards to store the level or rebound hammer. Simultaneously, the downward rotation of the level or rebound hammer allows it to move upwards, lifting the laser total station and 3D laser scanner. This provides appropriate compensation to lower the center of gravity, improving stability during use. Conversely, when the tray moves downwards, it drives the rack to move downwards, rotating the first shaft and mounting base from a downward position to a horizontal position, facilitating the use of the level or rebound hammer mounted on mounting bases one and two.

[0020] 3. When the technical solution of this invention uses the tray to move the laser total station and 3D laser scanner upwards, it will also move the top plate two upwards, eliminating the resistance to the sliding plate. Under the elastic force of the spring two, the sliding plate is pushed upwards, causing the rotating plate to rotate. This pulls the sleeve and rack two to slide closer to the tray. During this process, the rack two rotates each shaft two through meshing with the gear two, which in turn drives the support plate to rotate, allowing the support plate to rotate away from the electric trolley and unfold. It also controls the telescopic rod three to move the pad down to support the ground, achieving stable support for the electric trolley and further improving the stability of the electric trolley during the use of the laser total station and 3D laser scanner. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a sectional view of the side structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the relevant structures on the tray of the present invention;

[0024] Figure 4 This is a schematic diagram of the relevant structures on the tray and support of the present invention;

[0025] Figure 5 This is a rear view schematic diagram of the relevant structures on the bracket of the present invention;

[0026] Figure 6 This is a schematic diagram of the relevant structures on the support of the present invention;

[0027] Figure 7 This is a schematic diagram of the relevant structures on the tray and the second rotating shaft of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the unfolding component of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Electric trolley; 2. Off-road wheels; 3. Telescopic components; 4. Support base; 5. Drive motor; 6. Tray; 7. Servo motor; 8. Turntable; 9. Laser total station; 10. 3D laser scanner; 11. Side plate; 12. Top plate one; 13. Top plate two; 14. Bracket; 15. Rotating shaft one; 16. Mounting base one; 17. Telescopic rod one; 18. Mounting base two; 19. Telescopic rod two; 20. Mounting plate one; 21. 1. Mounting plate 2; 22. Gear 1; 23. Opening; 24. Guide rod 1; 25. Slide seat; 26. Spring 1; 27. Slide frame; 28. Rack 1; 29. ​​Frame body; 30. Groove body; 31. Rotating shaft 2; 32. Support plate; 33. Telescopic rod 3; 34. Washer plate; 35. Gear 2; 36. Guide rod 2; 37. Sleeve seat; 38. Rack 2; 39. Slide rod; 40. Slide plate; 41. Spring 2; 42. Rotating plate. Detailed Implementation

[0031] The following will be combined with the appendix Figure 1 To be continued Figure 8 The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1:

[0033] like Figures 1-8 As shown, the present invention discloses an engineering quality testing device based on green building design, including an electric trolley 1, a tray 6 on the upper end of the electric trolley 1, servo motors 7 symmetrically installed on the upper and lower sides of the tray 6, and turntables 8 are mounted on the output ends of the upper and lower servo motors 7 on the side away from each other. A laser total station 9 and a three-dimensional laser scanner 10 are symmetrically installed on the side away from each other of the turntables 8. Side plates 11 are connected to the front and rear sides of the turntables 8 radially. Top plate 12 and top plate 2 13 are connected to the side plates 11. Brackets 14 are connected to the front and rear ends of the electric trolley 1, and a rotating shaft 15 is rotatably mounted inside the brackets 14. A mounting base 16 is connected between the two brackets 14 on the side closer to each other.

[0034] Mounting base 16 is also equipped with mounting plate 20 and mounting plate 21. Mounting base 16 is also equipped with an adjustment component for adjusting the position of mounting plate 20 and mounting plate 21. An angle adjustment component is equipped on bracket 14 for adjusting the angle of mounting base 16. The front and rear ends of both sides of electric trolley 1 are rotatably fitted with rotating shaft 31, and a support plate 32 is connected to the rotating shaft 31. A telescopic rod 33 is installed at the lower end of the support plate 32, and a pad 34 is connected to the lower output end of the telescopic rod 33. Electric trolley 1 is also equipped with an unfolding component for rotating and unfolding each rotating shaft 31 and support plate 32 when the tray 6 moves up.

[0035] Among them, electric car 1 is an existing electric unmanned car.

[0036] The electric trolley 1 is equipped with a battery pack inside its body and off-road wheels 2. The turntables 8 on the upper and lower sides of the tray 6 are also rotated around it. The battery pack can power the electric trolley 1 and the various devices mounted on it, while the off-road wheels 2 can improve the passability of the electric trolley 1, so as to realize full-area inspection without blind spots within the green inspection construction range, and also improve the degree of automation.

[0037] The electric trolley 1 has telescopic components 3 symmetrically installed on both sides of its upper end, and each side has two telescopic components 3 arranged symmetrically at the front and back. Each side has a support base 4 installed on the upper output end of the two telescopic components 3 at the front and back, and a drive motor 5 is installed through the support base 4. The drive motors 5 on both sides are close to each other and a tray 6 is connected between the output ends on one side.

[0038] This allows for height adjustment of the telescopic adjustment tray 6 of the telescopic component 3 and the laser total station 9 and 3D laser scanner 10 on it to obtain the maximum detection angle and avoid obstruction. The drive motor 5 can drive the tray 6 to rotate to the opposite side, so that the laser total station 9 and 3D laser scanner 10 are respectively positioned on the upper side of the tray 6, and control the operation of the laser total station 9 or 3D laser scanner 10 positioned on the upper side of the tray 6 to further reduce obstruction and obtain the maximum detection angle.

[0039] Both mounting plate 1 (20) and mounting plate 2 (21) have multiple universal bolt holes, through which a level or rebound hammer can be installed, making it convenient to universally install existing level or rebound hammers on mounting plate 1 (20) or mounting plate 2 (21).

[0040] Example 2:

[0041] like Figures 1-8 As shown, the present invention discloses an engineering quality testing device based on green building design. Compared with Embodiment 1, this embodiment discloses the structure of the adjustment component.

[0042] The adjustment assembly includes a telescopic rod 17, a mounting base 28, and a telescopic rod 29. The telescopic rod 17 is fitted inside and through the mounting base 16. The mounting base 28 is connected to the output end of the telescopic rod 17 on the side away from the tray 6. The telescopic rod 29 is fitted inside and through the mounting base 28. The mounting plate 20 is connected to the side of the mounting base 28 away from the tray 6. The mounting plate 21 is connected to the output end of the telescopic rod 29 on the lower side.

[0043] When the telescopic rod 17 is in a horizontal state, controlling the extension and retraction of the telescopic rod 17 can adjust the distance between the mounting base 28 and the tray 6, thereby adjusting the distance between the mounting plate 20 and the tray 6. It can also control the extension and retraction of the telescopic rod 29 to adjust the height of the mounting plate 21, thereby adjusting the position of the level or rebound device installed on the mounting plate 20 and the mounting plate 21.

[0044] Example 3:

[0045] like Figures 1-8 As shown, this invention discloses an engineering quality testing device based on green building design. Compared with Embodiment 2, this embodiment discloses the structure of the angle adjustment component.

[0046] The angle adjustment assembly includes gear 22, opening 23, slide 25, slide frame 27, rack 28, and frame 29. Gear 22 is connected to the two rotating shafts 15 on opposite sides of the two supports 14. Opening 23 is opened on the support 14 and extends through both sides of the support 14. Slide 25 is slidably fitted in the opening 23 and extends to the opposite sides of the two supports 14. Slide frame 27 is connected to the output end of slide 25 on opposite sides of the two supports 14 and is fitted on the outside of gear 22 on each side. Rack 28 is connected to the inner wall of one side of slide frame 27 and meshes with gear 22. Frame 29 is connected to the two slides 25 and abuts against the lower end of top plate 12.

[0047] When the tray 6 is moved downward by the telescopic component 3, it can move downward by contacting the frame 29 through the top plate 12, and pull the slide frame 27 and the rack 28 downward, thereby driving the gear 22, the rotating shaft 15 and the mounting base 16 to rotate, so that the telescopic rod 17, which was originally in a vertical position under the action of gravity, can rotate to a vertical position. This makes it convenient to adjust the position of the total station or rebound hammer installed on the mounting plate 20 or mounting plate 21 by controlling the telescopic rod 17 and the telescopic rod 29 to coordinate their extension and retraction.

[0048] A guide rod 24 is connected between the upper and lower inner walls of the opening 23. A slide 25 is slidably sleeved on the outside of the guide rod 24. A spring 26 sleeved on the outside of the guide rod 24 is connected between the lower end of the slide 25 and the lower inner wall of the opening 23.

[0049] The sliding sleeve of the slide block 25 on the outside of the guide rod 24 can stabilize the up and down sliding of the slide block 25, and also ensure that the slide frame 27 and the rack 28 can move up and down stably, and ensure the stable meshing of the rack 28 and the gear 22.

[0050] Example 4:

[0051] like Figures 1-8 As shown, the present invention discloses an engineering quality testing device based on green building design. Compared with Embodiment 3, this embodiment discloses the structure of the unfolding component.

[0052] The unfolding assembly includes a second gear 35, a second guide rod 36, a sleeve 37, a second rack 38, and a slide plate 40. The upper end of the second shaft 31 extends to the upper surface of the electric trolley 1. The second gear 35 is fitted on the upper extension end of the second shaft 31. The second guide rod 36 is connected to the upper surface of the electric trolley 1. The sleeve 37 is slidably fitted on the outside of the second guide rod 36. The second rack 38 is connected to the side of the sleeve 37 near the second gear 35 and meshes with the second gear 35. The slide plate 40 is slidably set on the upper surface of the electric trolley 1, and a rotating plate 42 is rotatably connected between the slide plate 40 and the sleeve 37 via a spring hinge.

[0053] When the telescopic component 3 controls the tray 6 to move upward, it can drive the top plate 12 and the top plate 23 to move upward, thereby gradually eliminating the resistance of the top plate 12 to the frame 29 and the resistance of the top plate 23 to the slide plate 40. Under the action of the spring 26, the rack 28 can drive the telescopic rod 17 to rotate from a horizontal state to a vertical state, thereby rotating the level and rebound spring installed on the mounting plate 20 and the mounting plate 21 downward. When the tray 6 drives the laser total station 9 and the 3D laser scanner 10 to move upward, the downward rotation of the level and rebound spring can lower the center of gravity and ensure the stability during operation.

[0054] The upward movement of the slide plate 40 can drive the rotating plate 42 to rotate, pulling the rack 38 closer to the tray 6, which in turn drives the gear 35 to rotate, causing the rotating shaft 31 to rotate and rotate each support plate 32 to the side away from the electric trolley 1. Then, by controlling the extension of the telescopic rod 33, the pad 34 is pushed to contact the ground, thus supporting the electric trolley 1 and further improving stability when the center of gravity shifts upward due to the rise of the tray 6, ensuring the stable operation of the device.

[0055] Multiple guide rods 36 are provided, each guide rod 36 is set on one side of the corresponding gear 35. The electric trolley 1 has grooves 30 on both sides. The rotating shaft 31 is rotatably sleeved between the upper and lower inner walls of the front and rear ends of the groove 30. The upper end of the rotating shaft 31 passes through the upper inner wall of the groove 30 and the upper end face of the electric trolley 1, extends to the top of the electric trolley 1, and is connected to the gear 35 through the upper extension end.

[0056] The upper end of the electric trolley 1 is connected to a sliding rod 39. The sliding plate 40 is slidably sleeved on the outside of the sliding rod 39. A spring 41 sleeved on the outside of the sliding rod 39 is connected between the lower end of the sliding plate 40 and the upper end of the electric trolley 1. The telescopic rod 33 is installed on the lower side of the front and rear side support plates 32 that are close to each other. The sliding sleeve of the sliding plate 40 and the sliding rod 39 ensures the stability of the sliding plate 40 and allows the spring 41 to push the sliding plate 40 upward without external force, thereby rotating and unfolding each support plate 32.

[0057] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. An engineering quality testing device based on green building design, comprising an electric trolley (1), wherein a tray (6) is provided on the upper end of the electric trolley (1), characterized in that, Servo motors (7) are symmetrically installed on the upper and lower sides of the tray (6), and turntables (8) are mounted on the output ends of the servo motors (7) on the side away from each other. A laser total station (9) and a three-dimensional laser scanner (10) are symmetrically installed on the turntables (8) on the side away from each other. Side plates (11) are connected to the front and rear sides of the turntables (8). Top plate one (12) and top plate two (13) are connected to the side plates (11). Brackets (14) are connected to both sides of the front and rear ends of the electric trolley (1), and a rotating shaft one (15) is rotatably mounted inside the brackets (14). A mounting seat one (16) is connected between the two brackets (14) on the side closer to each other. Mounting base one (16) is also provided with mounting plate one (20) and mounting plate two (21). Mounting base one (16) is also provided with a positioning component. The positioning component is used to adjust the position of mounting plate one (20) and mounting plate two (21). Angle adjustment component is provided on bracket (14). Angle adjustment component is used to adjust the angle of mounting base one (16). The front and rear ends of both sides of the electric trolley (1) are rotatably fitted with rotating shaft two (31). A support plate (32) is connected to the rotating shaft two (31). A telescopic rod three (33) is installed at the lower end of the support plate (32). A pad (34) is connected to the lower output end of the telescopic rod three (33). An unfolding component is also provided on the electric trolley (1). The unfolding component is used to drive each rotating shaft two (31) and support plate (32) to rotate and unfold when the tray (6) moves up. The angle adjustment assembly includes a gear (22), an opening (23), a slide (25), a slide frame (27), a rack (28), and a frame (29). The gear (22) is connected to the two rotating shafts (15) on the opposite side of the two supports (14). The opening (23) is opened on the support (14) and extends through both sides of the support (14). The slide (25) is slidably fitted inside the opening (23) and extends to the opposite side of the two supports (14). The slide frame (27) is connected to the output end of the slide (25) on the opposite side of the two supports (14) and is fitted on the outside of the gear (22) on each side. The rack (28) is connected to the inner wall of one side of the slide frame (27) and meshes with the gear (22). The frame (29) is connected to the two slides (25) and engages with the lower end of the top plate (12).

2. The engineering quality testing equipment based on green building design according to claim 1, characterized in that, The electric trolley (1) is equipped with a battery pack inside its body and off-road wheels (2) on its body. The turntables (8) on the upper and lower sides of the tray (6) are also rotated around it.

3. The engineering quality testing equipment based on green building design according to claim 1, characterized in that, The electric trolley (1) has telescopic components (3) symmetrically installed on both sides of its upper end. Each telescopic component (3) has two symmetrically arranged front and back. Each front and back telescopic component (3) has a support base (4) installed on its upper output end, and a drive motor (5) is installed through the support base (4). The drive motors (5) on both sides are close to each other and a tray (6) is connected between their output ends.

4. The engineering quality testing equipment based on green building design according to claim 1, characterized in that, Both mounting plate one (20) and mounting plate two (21) have multiple universal bolt holes, through which a level or rebound meter is installed.

5. The engineering quality testing equipment based on green building design according to claim 1, characterized in that, The adjustment assembly includes a telescopic rod one (17), a mounting base two (18), and a telescopic rod two (19). The telescopic rod one (17) is fitted inside the mounting base one (16) and passes through the mounting base one (16). The mounting base two (18) is connected to the output end of the telescopic rod one (17) away from the tray (6). The telescopic rod two (19) is fitted inside the mounting base two (18) and passes through the mounting base two (18). The mounting plate one (20) is connected to the side of the mounting base two (18) away from the tray (6). The mounting plate two (21) is connected to the output end of the lower side of the telescopic rod two (19).

6. The engineering quality testing equipment based on green building design according to claim 1, characterized in that, A guide rod (24) is connected between the upper and lower inner walls of the opening (23). The slide (25) is slidably sleeved on the outside of the guide rod (24). A spring (26) sleeved on the outside of the guide rod (24) is connected between the lower end of the slide (25) and the lower inner wall of the opening (23).

7. The engineering quality testing equipment based on green building design according to claim 1, characterized in that, The unfolding assembly includes a second gear (35), a second guide rod (36), a sleeve (37), a second rack (38), and a sliding plate (40). The upper end of the second rotating shaft (31) extends to the upper surface of the electric trolley (1). The second gear (35) is fitted on the upper extension end of the second rotating shaft (31). The second guide rod (36) is connected to the upper surface of the electric trolley (1). The sleeve (37) is slidably fitted on the outside of the second guide rod (36). The second rack (38) is connected to the side of the sleeve (37) near the second gear (35) and meshes with the second gear (35). The sliding plate (40) is slidably set on the upper surface of the electric trolley (1), and a rotating plate (42) is rotatably connected between the sliding plate (40) and the sleeve (37) through a spring hinge.

8. The engineering quality testing equipment based on green building design according to claim 7, characterized in that, Multiple guide rods (36) are provided, and each guide rod (36) is provided on one side of the corresponding gear (35). The electric trolley (1) has grooves (30) on both sides. The rotating shaft (31) is rotatably sleeved between the upper and lower inner walls of the front and rear ends of the groove (30). The upper end of the rotating shaft (31) passes through the upper inner wall of the groove (30) and the upper end face of the electric trolley (1), extends to the top of the electric trolley (1), and is connected to the gear (35) through the upper extension end.

9. The engineering quality testing equipment based on green building design according to claim 7, characterized in that, The upper end of the electric trolley (1) is connected to a slide rod (39), and the slide plate (40) is slidably sleeved on the outside of the slide rod (39). A spring (41) sleeved on the outside of the slide rod (39) is connected between the lower end of the slide plate (40) and the upper end of the electric trolley (1). The telescopic rod (33) is installed on the lower side of the front and rear side support plates (32) that are close to each other.

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