A lift for civil construction

Abstract

The present invention belongs to the field of civil engineering technology, and discloses a lift for civil construction, comprising a base, a slot provided on the base, and a top frame with a U-shaped structure spanning the slot fixedly mounted on the base, a lifting plate provided on the top frame, and a material support assembly provided on the lifting plate. Compared with the prior art, the beneficial effects of the present invention are as follows: during unloading, materials can slide more smoothly to the ground, thereby realizing rapid unloading of materials, eliminating the need for manual labor to slowly carry materials, reducing the manpower consumption during material unloading, improving the speed and efficiency of unloading, facilitating use, increasing the selectivity of material unloading, increasing the applicability of the device, and thus being applicable to work scenarios with different unloading requirements, being able to quickly load and transport materials at the material placement location to the unloading location for rapid unloading, improving the speed and efficiency of material loading and unloading, greatly improving the speed and efficiency of the lift when in use, and facilitating use.

Description

Technical Field

[0001] The present invention belongs to the technical field of civil engineering, and particularly relates to a lift for civil construction. Background Art

[0002] Civil engineering covers the construction of buildings, structures, and engineering works within facilities and sites in various engineering fields such as above-ground, underground, land, water, and underwater, including houses, roads, railways, airports, bridges, water conservancy, ports, tunnels, water supply and drainage, and protection. It includes not only various technical activities such as surveying, design, construction, maintenance, and management during the engineering construction process, but also the materials, equipment, and items consumed during the construction process.

[0003] During the construction process, it is often necessary to transport building materials to high places, and at this time, a lift is required to meet the need for transporting building materials. Most of the existing lifts are used to transport materials to the lifting components of the lift, and then transport the materials from the lifting components to the designated positions. Therefore, the material handling requires a large amount of time and a large amount of manpower, reducing the speed and efficiency of material loading and unloading, as well as the speed and efficiency of the lift during use, which is not conducive to use. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a lift for civil construction, aiming to solve the problems raised in the above background.

[0005] The present invention is implemented as follows: A lift for civil construction includes a base. A card slot is provided on the base, and a top frame with a U-shaped structure straddling the card slot is fixedly installed on the base. A lifting plate is provided on the top frame, and a material support assembly is provided on the lifting plate. A fence with a U-shaped structure distributed around its edge is fixedly installed on one side surface of the lifting plate. A lifting assembly for driving the lifting plate to move up and down is provided on the top frame;

[0006] The material support assembly includes a support frame. There are two groups of support frames, which are set in a U-shaped structure. A plurality of groups of parallelly distributed support shafts located in the same plane are rotatably installed in both groups of support frames. The surface height of the support shafts exceeds the surface height of the support frames. The surface of the support frame close to the lifting plate is set as an inclined surface structure and gradually decreases in height towards the opening end side. Two first support plates are fixedly installed on the surface of the support frame close to the lifting plate at intervals. A lead screw passing through one of the first support plates at one end is rotatably installed by the two first support plates together. The lead screw is parallel to the inclined surface of the support frame, and a moving plate whose one side surface slides in contact with the inclined surface of the support frame is rotatably installed on the lead screw. First universal wheels are rotatably installed at both ends of the moving plate on the surface away from the support frame. Pillars are fixedly installed at intervals on the side wall of the support frame away from the opening end. Second universal wheels are rotatably installed at the ends of the pillars away from the support frame. A power assembly for driving the lead screw to rotate is provided on the support frame;

[0007] A side plate is fixedly installed on the side wall of the support frame far away from the opening end, and a shielding component is detachably connected to the side plate.

[0008] As a further solution of the present invention: a lifting frame is slidably installed on the side wall of the support frame far away from the opening end. The lifting frame is arranged in a U-shaped structure and penetrates through the support frame. Fixing plates are fixedly installed at the ends of the lifting frame together. A threaded rod is rotatably installed on the support frame. The threaded rod is parallel to the vertical section of the support frame. The threaded rod penetrates through the horizontal section of the support frame and is threadedly connected to the support frame.

[0009] As a further solution of the present invention: connecting blocks are fixedly installed on the outer sides of the opening ends of the two groups of support frames. Threaded holes are formed in the connecting blocks, and a fixing screw is threadedly connected in one of the threaded holes.

[0010] As a further solution of the present invention: the lifting assembly includes a winch. There are multiple groups of winches, which are fixedly installed on the horizontal section of the top frame. The winches are distributed at both ends of the top frame, and steel wires are wound on the winches. The movable ends of the steel wires point vertically towards the base and are fixedly connected to the ends of the lifting plate.

[0011] As a further solution of the present invention: the lifting assembly further includes guide rods. There are multiple groups of guide rods, which are fixedly installed on the horizontal section of the top frame. The guide rods are distributed at the four corners of the horizontal section of the top frame, the guide rods point towards the base and extend into the card slots, and the guide rods respectively penetrate through the four corners of the lifting plate and are in sliding contact with the lifting plate.

[0012] As a further solution of the present invention: the power assembly includes second support plates. There are multiple groups of second support plates, which are fixedly installed on the first support plate. The second support plates jointly rotatably install a worm that is skew perpendicular to the lead screw. One end of the worm penetrates through one of the second support plates on one side, and the worm meshes with a worm gear fixedly installed at the end of the lead screw.

[0013] As a further solution of the present invention: the power assembly further includes a third support plate. The third support plate is fixedly installed on the support frame, and a rotating rod is rotatably installed on the third support plate. The rotating rod penetrates through the third support plate and points towards the worm. A first bevel gear is fixedly installed at the end of the rotating rod close to the worm. The first bevel gear meshes with a second bevel gear fixedly installed at the end of the worm. A handle for driving the rotating rod to rotate is fixedly installed at the end of the rotating rod far away from the worm.

[0014] As a further solution of the present invention: the shielding assembly includes a shielding frame, which is arranged as a frame-type structure and has a plurality of groups of spaced shielding rods fixedly installed in the shielding frame, and a spaced L-shaped mounting bracket is fixedly installed on one side of the shielding frame, and the mounting bracket is used in conjunction with a mounting tube fixedly installed on the side of the side panel, and a stud is fixedly installed on the end of the shielding frame away from the mounting bracket, and a threaded barrel is threaded on the stud, and the threaded barrel is used in conjunction with a fixing hole opened on the support frame.

[0015] As a further solution of the present invention: a top plate is fixedly mounted on the vertical section of the mounting bracket, and a plurality of sets of spaced-apart balls are rotatably mounted on the top plate close to the surface of the mounting tube, and the balls are in rolling contact with the end surface of the mounting tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are: during unloading, the material can slide more smoothly to the ground, thereby realizing the rapid unloading of the material, eliminating the need for manual labor to slowly carry the material, reducing the manpower consumption during material unloading, improving the speed and efficiency of unloading, and facilitating use. Of course, the covering component on one side can also be opened or removed as needed, and then the material can be manually carried, thereby increasing the selectivity of material unloading and the applicability of the device, and thus being able to adapt to work scenarios with different unloading requirements.

[0017] Carrying materials through the support frame reduces the time and workload of stacking materials on and off the lifting plate, and can quickly load and transport materials at the material placement location and transport them to the unloading position for rapid unloading, thereby improving the speed and efficiency of material loading and unloading, greatly improving the speed and efficiency of the elevator when in use, and facilitating use.

[0018] The shielding components can be easily installed or removed on both sides of the support frame, thereby preventing the transported materials from falling downward and improving the stability when loading the materials. At the same time, the shielding components can be removed during unloading to avoid affecting the unloading of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of a lift used in civil engineering and construction.

[0020] Figure 2 The figure is a schematic diagram of the structure of a support frame in a lift used in civil engineering and construction.

[0021] Figure 3 The figure is a schematic diagram of the structure of a power component in a lift used in civil engineering and construction.

[0022] Figure 4 The figure is a schematic diagram of the structure of a shielding component in a lift used in civil engineering and construction.

[0023] Figure 5 The figure is a schematic diagram of the structure of an installation bracket in a lift used in civil engineering and construction.

[0024] Figure 6 It is the front view of the support frame in a lift for civil engineering construction.

[0025] Figure 7 It is Figure 1 the enlarged view of the position A1 in

[0026] Figure 8 It is Figure 1 the enlarged view of the position A2 in

[0027] In the attached drawings: 1, base; 2, top frame; 3, guide rod; 4, lifting plate; 5, winch; 6, steel wire rope; 7, fence; 8, card slot; 9, support frame; [10, support shaft; 11, first support plate; 12, lead screw; 13, moving plate; 14, first universal wheel; 15, support column; 16, second universal wheel; 17, second support plate; 18, worm; 19, worm gear; 20, third support plate; 21, rotating rod; 22, handle; 23, first bevel gear; 24, second bevel gear; 25, lifting frame; 26, fixing plate; 27, threaded rod; 28, side plate; 29, mounting pipe; 30, shielding frame; 31, mounting bracket; 32, top plate; 33, ball; 34, shielding rod; 35, stud; 36, threaded cylinder; 37, connecting block; 38, fixing screw; 39, material support assembly; 40, lifting assembly; 41, power assembly; 42, shielding assembly. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The following describes the specific implementation of the present invention in detail in conjunction with specific embodiments.

[0030] As Figures 1 - 8 shown, as a preferred embodiment of the present invention, a lift for civil engineering construction includes a base 1. A card slot 8 is formed on the base 1, and a top frame 2 with a U-shaped structure spanning the card slot 8 is fixedly installed on the base 1. A lifting plate 4 is arranged on the top frame 2, and a material support assembly 39 is arranged on the lifting plate 4. A fence 7 with a U-shaped structure distributed around its edge is fixedly installed on one side surface of the lifting plate 4. A lifting assembly 40 for driving the lifting plate 4 to move up and down is arranged on the top frame 2;

[0031] The material support assembly 39 includes a support frame 9. There are two sets of support frames 9, which are arranged in a U-shaped structure. A plurality of groups of support shafts 10 that are parallelly distributed and located in the same plane are rotatably installed in each of the two sets of support frames 9. The surface height of the support shafts 10 exceeds the surface height of the support frame 9. The surface of the support frame 9 close to the lifting plate 4 is provided with an inclined surface structure, and the height gradually decreases towards the opening end side. Two first support plates 11 are fixedly installed on the surface of the support frame 9 close to the lifting plate 4 at intervals. A lead screw 12 whose one end passes through one of the first support plates 11 is rotatably installed by the two first support plates 11 together. The lead screw 12 is parallel to the inclined surface of the support frame 9, and a moving plate 13 whose one side surface is in sliding contact with the inclined surface of the support frame 9 is rotatably installed on the lead screw 12. First universal wheels 14 are rotatably installed at both ends of the moving plate 13 on the surface of the moving plate 13 away from the support frame 9. Pillars 15 are fixedly installed on the side wall of the support frame 9 far from the opening end at intervals. A second universal wheel 16 is rotatably installed at one end of the pillar 15 away from the support frame 9. A power assembly 41 for driving the lead screw 12 to rotate is arranged on the support frame 9;

[0032] A side plate 28 is fixedly installed on the side wall of the support frame 9 far from the opening end, and a shielding assembly 42 is detachably connected to the side plate 28.

[0033] A lifting frame 25 is slidably installed on the side wall of the support frame 9 far from the opening end. The lifting frame 25 is arranged in a U-shaped structure and the lifting frame 25 penetrates through the support frame 9. Fixing plates 26 are fixedly installed at the ends of the lifting frame 25 together. A threaded rod 27 is rotatably installed on the support frame 9. The threaded rod 27 is parallel to the vertical section of the support frame 9. The threaded rod 27 penetrates through the horizontal section of the support frame 9 and is threadedly connected to the support frame 9.

[0034] Connection blocks 37 are fixedly installed on the outer sides of the opening ends of the two sets of support frames 9. Threaded holes are formed in the connection blocks 37, and a fixing screw 38 is threadedly connected to one of the threaded holes.

[0035] In practical applications of the embodiments of the present invention, the base 1 is pushed to the working position and the position of the base 1 is fixed. During use, the lifting assembly 40 drives the lifting plate 4 to move downward, so that the lifting plate 4 passes through the card slot 8 and moves to the ground. The two support frames 9 are arranged with their openings facing each other and are in contact with each other. Then, the connecting blocks 37 on the two support frames 9 are fixedly connected by fixing screws 38, so that the two support frames 9 are fixedly connected, increasing the loading area of the support frame 9. The support frame 9 is supported by the first universal wheels 14 and the second universal wheels 16. The support frame 9 is pushed to the loading position of the material. Then, the material to be transported can be placed on the support shaft 10. According to the needs of material loading, the shielding assembly 42 can be installed on both sides of the side plate 28, so as to be able to shield both sides of the support frame 9, thus preventing the material from falling downward and improving the stability when loading the material. During subsequent use, one side of the shielding assembly 42 can be removed or opened according to needs, so as to improve the practicality of the shielding assembly 42 during use, increase convenience, and avoid interfering with the loading or unloading of materials. After the goods are loaded, the two sides of the support frame 9 are shielded by the shielding assembly 42 and the support frame 9 is pushed onto the lifting plate 4. The threaded rod 27 at the end of the support frame 9 is rotated, so as to be able to drive the lifting frame 25 to move downward and make the fixing plate 26 contact with the lifting plate 4. At this time, the support frame 9 can be fixedly installed on the lifting plate 4, thus preventing the support frame 9 from moving and ensuring the stability and safety of the support frame 9 when the lifting plate 4 moves up and down. Then, the lifting assembly 40 drives the lifting plate 4 to rise to the height where the material needs to be transported. Then, when the threaded rod 27 is rotated in the reverse direction, the fixing plate 26 leaves the lifting plate 4. At this time, the support frame 9 can be pushed to drive the material to move to the unloading position. After moving to the unloading position, at this time, the fixing screws 38 are rotated to release the connection between the two support frames 9. At this time, the two support frames 9 can move freely. At this time, the power assembly 41 drives the lead screw 12 to rotate, and the lead screw 12 drives the moving plate 13 to move toward the side close to the fixing plate 26. Since the lower surface of the support frame 9 is provided with an inclined surface structure, when the moving plate 13 drives the first universal wheel 14 to move, the first universal wheel 14 will move in a direction away from the ground. Under the action of gravity, the first universal wheel 14 will always be in contact with the ground. At this time, the support frame 9 will tilt toward the open end side. When the tilt angle of the support frame 9 increases, at this time, under the action of gravity, the material located on the support shaft 10 can move downward, and the support shaft 10 can rotate, reducing the friction with the material, so that the material can slide more smoothly to the ground, thus realizing the rapid unloading of the material, eliminating the need for manual slow handling of the material, reducing the labor consumption during material unloading, improving the unloading speed and efficiency, and being beneficial to use. Of course, one side of the shielding assembly 42 can also be opened or removed according to needs, and then the material can be manually handled, so as to increase the selectivity during material unloading, increase the applicability of the device, and further be able to adapt to different working scenarios with different unloading requirements.After the unloading is completed, the power component 41 drives the lead screw 12 to rotate in the reverse direction, so that the moving plate 13 returns to its original position again, so that the upper surface of the support frame 9 is horizontal again. Then, the two support frames 9 can be connected and the support frame 9 can be pushed back onto the lifting plate 4. After the support frame 9 is fixed by the fixing plate 26 again, the lifting plate 4 can be moved downward. By repeating the above steps, the transportation of materials can be carried out. The transportation of materials by the support frame 9 reduces the time and workload of stacking materials on the lifting plate 4 and separating from the lifting plate 4, and can quickly load and transport materials at the material placement location to the unloading location for quick unloading, improving the speed and efficiency of material loading and unloading, greatly improving the speed and efficiency of the elevator during use, and being beneficial to use.

[0036] As Figure 1 shown, as a preferred embodiment of the present invention, the lifting component 40 includes a winch 5. A plurality of winches 5 are provided and fixedly installed on the horizontal section of the top frame 2. The winches 5 are distributed at both ends of the top frame 2, and a steel wire rope 6 is wound around the winch 5. The movable end of the steel wire rope 6 points vertically to the base 1 and is fixedly connected to the end of the lifting plate 4.

[0037] The lifting component 40 further includes a guide rod 3. A plurality of guide rods 3 are provided and fixedly installed on the horizontal section of the top frame 2. The guide rods 3 are distributed at the four corners of the horizontal section of the top frame 2, the guide rods 3 point to the base 1 and extend into the card slots 8, and the guide rods 3 respectively penetrate through the four corners of the lifting plate 4 and are in sliding contact with the lifting plate 4.

[0038] In the actual application of the embodiment of the present invention, multiple winches 5 simultaneously wind or release the steel wire rope 6. When the steel wire rope 6 is released, at this time, the lifting plate 4 stably moves downward along the guide rod 3. When the steel wire rope 6 is wound, the lifting plate 4 moves upward under the pulling of the steel wire rope 6, so as to realize the lifting operation of the material. The guide rod 3 restricts and guides the lifting plate 4, so as to ensure that the lifting plate 4 stably moves in the vertical direction, avoid side shaking during the up and down movement of the lifting plate 4, and thus improve the stability during subsequent use, which is beneficial to use.

[0039] As Figure 1 、 Figure 3 and Figure 7 shown, as a preferred embodiment of the present invention, the power component 41 includes a second support plate 17. A plurality of second support plates 17 are provided and fixedly installed on the first support plate 11. The second support plates 17 are jointly rotatably installed with a worm 18 that is skew perpendicular to the lead screw 12. One end of the worm 18 penetrates through one side of the second support plate 17, and the worm 18 meshes with a worm gear 19 fixedly installed at the end of the lead screw 12.

[0040] The power assembly 41 further includes a third support plate 20. The third support plate 20 is fixedly installed on the support frame 9, and a rotating rod 21 is rotatably installed thereon. The rotating rod 21 penetrates through the third support plate 20 and points to the worm 18. A first bevel gear 23 is fixedly installed at one end of the rotating rod 21 close to the worm 18. The first bevel gear 23 meshes with a second bevel gear 24 fixedly installed at the end of the worm 18. A handle 22 for driving the rotation of the rotating rod 21 is fixedly installed at the end of the rotating rod 21 far from the worm 18.

[0041] In the actual application of the embodiment of the present invention, the handle 22 drives the rotation of the rotating rod 21, the rotating rod 21 drives the rotation of the first bevel gear 23, the first bevel gear 23 drives the rotation of the worm 18 through the meshing second bevel gear 24. Then, the worm 18 can drive the screw rod 12 to rotate through the meshing worm gear 19. By changing the rotation direction of the rotating rod 21, the rotation direction of the screw rod 12 can be changed. The rotation of the screw rod 12 can adjust the position of the moving plate 13, so that the support frame 9 obtains different angles of inclination. Through the self-locking of the worm gear 19 and the worm 18, the random rotation of the screw rod 12 is avoided, so that the moving plate 13 can be kept in a stable position, and further the stability of the support frame 9 during static and movement is ensured, which is beneficial to the loading and transportation of materials.

[0042] Such as Figure 1 、 Figure 4 、 Figure 5 and Figure 8 As shown in

[0043] A top plate 31 is fixedly installed on the vertical section of the mounting bracket 31. A plurality of spaced rolling balls 33 are rotatably installed on the surface of the top plate 31 close to the mounting tube 29. The rolling balls 33 are in rolling contact with the end face of the mounting tube 29.

[0044] In practical application of the embodiments of the present invention, the mounting bracket 31 is inserted into the mounting pipe 29 at the corresponding position. At this time, the ball 33 contacts the upper end surface of the mounting pipe 29. The shielding frame 30 can be mounted on the side surface of the side plate 28 through the mounting bracket 31. During use, the shielding frame 30 is rotated to be flush with the side wall of the support frame 9. At this time, the threaded cylinder 36 corresponds to the fixing hole on the support frame 9. The threaded cylinder 36 is rotated to move downward into the fixing hole. At this time, the shielding frame 30 can be restricted by the threaded cylinder 36 and the stud 35, so as to prevent the shielding frame 30 from rotating again. Repeating the above steps can enable the shielding frames 30 on both sides to shield both sides of the support frame 9, thereby preventing the material from falling downward and improving the stability when loading the material. When the shielding frame 30 rotates, it contacts the end surface of the mounting pipe 29 through the ball 33. Thus, the rolling contact between the ball 33 and the mounting pipe 29 reduces the friction with the mounting pipe 29, improves the smoothness of the rotation of the shielding frame 30, avoids generating friction noise during rotation, and improves the comfort of use. During subsequent use, one side of the shielding frame 30 can be removed or opened according to needs, thereby improving the practicality of the shielding frame 30 during use and increasing convenience.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An elevator for civil construction, including a base, a card slot is provided on the base, and a top frame with a U-shaped structure straddling the card slot is fixedly installed on the base, characterized in that, A lifting plate is arranged on the top frame, and a material support assembly is arranged on the lifting plate. A fence with a U-shaped structure distributed around its edge is fixedly installed on one side surface of the lifting plate. A lifting assembly for driving the lifting plate to move up and down is arranged on the top frame; The material support assembly includes a support frame. There are two groups of support frames, which are arranged in a U-shaped structure. A plurality of groups of parallel support shafts located in the same plane are rotatably installed in each of the two groups of support frames. The surface height of the support shafts exceeds the surface height of the support frames. The surface of the support frame close to the lifting plate is arranged as an inclined surface structure and gradually decreases in height towards the opening end. Two first support plates are fixedly installed on the surface of the support frame close to the lifting plate at intervals. A screw rod with one end passing through one of the first support plates is rotatably installed between the two first support plates. The screw rod is parallel to the inclined surface of the support frame, and a moving plate with one side surface slidingly contacting the inclined surface of the support frame is rotatably installed on the screw rod. First universal wheels are rotatably installed at both ends of the moving plate on the surface away from the support frame. Pillars are fixedly installed at intervals on the side wall of the support frame away from the opening end. Second universal wheels are rotatably installed at the ends of the pillars away from the support frame. A power assembly for driving the screw rod to rotate is arranged on the support frame; A side plate is fixedly installed on the side wall of the support frame away from the opening end, and a shielding assembly is detachably connected to the side plate; Connection blocks are fixedly installed on the outer sides of the opening ends of the two groups of support frames. Threaded holes are opened in the connection blocks, and a fixing screw is threadedly connected to one of the threaded holes. The connection blocks on the two groups of support frames are fixedly connected by the fixing screw; The shielding assembly includes a shielding frame, which is arranged in a frame structure. A plurality of groups of shielding rods are fixedly installed at intervals in the shielding frame. L-shaped mounting brackets are fixedly installed at intervals on one side edge of the shielding frame. The mounting brackets are used in cooperation with mounting tubes fixedly installed on the side surface of the side plate. A stud is fixedly installed at one end of the shielding frame away from the mounting bracket. A threaded cylinder is threadedly installed on the stud, and the threaded cylinder is used in cooperation with a fixing hole opened in the support frame.

2. The lift for civil construction according to claim 1, wherein A lifting frame is slidably installed on the side wall of the support frame away from the opening end. The lifting frame is arranged in a U-shaped structure and penetrates through the support frame. Fixing plates are fixedly installed at the ends of the lifting frame. A threaded rod is rotatably installed on the support frame. The threaded rod is parallel to the vertical section of the support frame. The threaded rod penetrates through the horizontal section of the support frame and is threadedly connected to the support frame.

3. The lift for civil construction according to claim 1, characterized in that, The lifting assembly includes a winch. There are multiple groups of winches, which are fixedly installed on the horizontal section of the top frame. The winches are distributed at both ends of the top frame, and steel wires are wound on the winches. The movable ends of the steel wires point vertically towards the base and are fixedly connected to the ends of the lifting plate.

4. The lift for civil engineering construction according to claim 3, characterized in that, The lifting assembly further includes guide rods. There are multiple groups of guide rods, which are fixedly installed on the horizontal section of the top frame. The guide rods are distributed at the four corners of the horizontal section of the top frame, point towards the base and extend into the card slots. The guide rods respectively penetrate through the four corners of the lifting plate and are in sliding contact with the lifting plate.

5. A lift for civil engineering construction according to claim 1, characterized in that, The power assembly includes second support plates. There are multiple groups of second support plates, which are fixedly installed on the first support plates. A worm that is skew perpendicular to the screw rod is rotatably installed among the second support plates. One end of the worm penetrates through one of the second support plates, and the worm meshes with a worm gear fixedly installed at the end of the screw rod.

6. The elevator for civil engineering construction according to claim 5, characterized in that, The power assembly further includes a third support plate, which is fixedly installed on the support frame and on which a rotating rod is rotatably installed. The rotating rod penetrates through the third support plate and points to the worm. A first bevel gear is fixedly installed at one end of the rotating rod close to the worm, and the first bevel gear meshes with a second bevel gear fixedly installed at the end of the worm. A handle for driving the rotation of the rotating rod is fixedly installed at the end of the rotating rod away from the worm.

7. A lift for civil engineering construction according to claim 1, characterized in that, A top plate is fixedly installed on the vertical section of the mounting bracket, and multiple groups of spaced ball bearings are rotatably installed on the surface of the top plate close to the mounting pipe, and the ball bearings are in rolling contact with the end face of the mounting pipe.

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