Construction engineering material lifting protection device

Abstract

The invention relates to the technical field of building construction equipment, in particular to a building engineering material lifting protection device. The invention provides a constructional engineering material lifting protection device capable of protecting materials. A construction engineering material lifting protection device comprises a moving frame, a supporting frame, first guide rods, a placing frame, a protection mechanism and an emergency stop mechanism, the top of the moving frame is connected with the supporting frame, the first guide rods are connected to the left side and the right side between the supporting frame and the moving frame, and the placing frame is slidably connected between the first guide rods; a protection mechanism used for covering the placing frame is arranged on the upper side of the placing frame, and an emergency stop mechanism used for clamping the placing frame is arranged between the elastic rope and the placing frame. An elastic rope is broken to be away from a pull ring, a first telescopic spring is reset to drive a clamping rod to move outwards to penetrate through a first guide rod, so that a placement frame stops moving, the sudden stop effect is achieved, and materials and the placement frame are prevented from falling off.

Description

Technical Field

[0001] The invention relates to the technical field of building construction equipment, and in particular to a lifting and protecting device for building engineering materials. Background Art

[0002] Construction projects mainly involve the construction of houses. During construction, materials need to be lifted. Since there are certain safety hazards in the lifting process, a protective device needs to be designed.

[0003] The patent application number CN217230090U discloses a material hoist for construction projects with a protective function. The handwheel is set in conjunction with the protective component to make the moving block and the protective plate move on the surface of the screw rod. The forward and reverse motor switch is used to control the forward and reverse motor to rotate forward. The lifting component and two guide wheels, the handwheel and the protective component are cooperated to separate the protective plate from the material. The hoist protects the material by moving the vertical plate. However, when the wire rope breaks, the moving plate, the vertical plate and the material will fall to the ground, and the protective effect is poor.

[0004] We have designed a construction material lifting protection device that can protect materials, so as to overcome the poor protection of existing hoists when in use. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a construction material lifting protection device capable of protecting materials, so as to overcome the disadvantage that the existing lifting machine has a poor protection effect.

[0006] To achieve the above objectives, the present invention is implemented through the following scheme: a construction material lifting protection device, comprising: A mobile frame and a supporting frame, wherein the top of the mobile frame is connected with the supporting frame; A first guide rod, with first guide rods connected to both left and right sides between the support frame and the movable frame; A first motor is installed on the front side of the top of the moving frame; Mounting frame, the left and right sides of the top of the mobile frame are connected with mounting frames; A rotating rod is rotatably connected between the mounting frames on the left side, a rotating rod is rotatably connected between the mounting frames on the right side, an output shaft of the first motor on the left side is connected to the rotating rod on the left side, and an output shaft of the first motor on the right side is connected to the rotating rod on the right side; A placing frame is slidably connected between the first guide rods; Elastic rope, the rotating rod on the left is wound with the elastic rope, the elastic rope passes through the support frame and passes through the placement frame and is wound around the rotating rod on the right; A protective mechanism is provided on the upper side of the placement frame for covering the placement frame; An emergency stop mechanism is provided between the elastic rope and the placement frame for clamping the placement frame.

[0007] As an improvement of the above scheme, the protection mechanism includes: A second motor is installed on the left side of the upper part of the placement frame; A bidirectional screw rod, the output shaft of the second motor is connected with the bidirectional screw rod, and the bidirectional screw rod is rotatably connected with the placement frame; A first slider is threadedly connected to the bidirectional lead screw; The first rotating plate and the first sliding block are both rotatably connected with the first rotating plate; A pressing plate is connected between the pressing plate and the first rotating plate, and the first rotating plate is rotatably connected to the pressing plate.

[0008] As an improvement of the above scheme, the emergency stop mechanism includes: A fixing frame is connected to both left and right sides of the upper part of the placement frame; The clamping rod and the fixing frame are both slidably connected with the clamping rod, and the clamping rod passes through the first guide rod after moving; A first telescopic spring is connected between the fixing frame and the clamping rod sliding on the fixing frame, and the first telescopic spring is wound around the clamping rod.

[0009] As an improvement to the above solution, the pull ring is connected to the inner side of the clamping rod, and the pull ring is slidably connected to the elastic rope.

[0010] As an improvement of the above scheme, a weight limiting mechanism for indicating that the material is overweight is also included, and the weight limiting mechanism includes: Telescopic racks, the front and rear sides of the lower part of the placement frame are connected with telescopic racks; Slide rails are connected between telescopic frames; A second rotating plate is rotatably connected to the left and right sides of the lower part of the placement frame; A second guide rod, the slide rail is connected with the second guide rod; A second slider, the second guide rod is slidably connected to the second slider, and the second rotating plate is rotatably connected to the second slider; A wedge-shaped frame, the outer sides of the second sliding blocks are connected with a wedge-shaped frame; The clamping clips are rotatably connected to the left and right sides of the slide rail; Torsion spring: a torsion spring is connected between the clamp and the slide rail, and the torsion spring is wound around the slide rail.

[0011] As an improvement of the above solution, the outer side of the wedge-shaped frame is triangular in shape.

[0012] As an improvement of the above solution, a second telescopic spring is provided, and a second telescopic spring is connected between the second sliding block and the sliding rail, and the second telescopic spring is wound around the second guide rod.

[0013] As an improvement of the above solution, a limiting mechanism for clamping the placement frame is also included, and the limiting mechanism includes: The sliding frame and the fixed frame are both slidably connected with the sliding frame; A third telescopic spring, wherein the fixed frame and the sliding frame sliding thereon are both connected with the third telescopic spring, and the third telescopic spring is wound on the sliding frame; The conical block and the sliding frame are all slidably connected with the conical block; A fourth telescopic spring is connected between the sliding frame and the conical block sliding thereon, and the fourth telescopic spring is wound around the conical block.

[0014] As an improvement of the above scheme, a shock absorbing mechanism for buffering the placement frame is also included, and the shock absorbing mechanism includes: Support frame, the front and rear sides of the top of the mobile frame are connected with support frames; Telescopic rods are evenly connected to the support frame; Shock-absorbing plates, where the telescopic rods in the same support frame are all connected with shock-absorbing plates; The fifth telescopic spring is connected between the telescopic rod and the shock absorbing plate, and the fifth telescopic spring is wound around the telescopic rod.

[0015] As an improvement of the above scheme, a telescopic mechanism for limiting the shaking of materials is also included, and the telescopic mechanism includes: Slide rods are slidably connected to the front and rear sides of the pressure plate; A protective plate is connected between the slide bars; A sixth telescopic spring is connected between the protective plate and the pressure plate, and the sixth telescopic spring is wound around the sliding rod.

[0016] The advantages of the present invention are as follows: 1. The present invention realizes an emergency stop effect by breaking the elastic rope away from the pull ring, and the first telescopic spring is reset to drive the clamping rod to move outward through the first guide rod, so that the placement frame stops moving, thereby preventing the material and the placement frame from falling; 2. The placement frame moves downward to drive the second rotating plate to rotate, and the wedge frame moves outward to contact the clamping clamp, and the clamping clamp rotates to clamp the first guide rod, thereby achieving a prompting effect, and people can take out part of the material to avoid the elastic rope being worn due to overweight of the material; 3. The downward movement of the pressure plate drives the slide bar to move downward, so that the protective plate moves downward and contacts the material. When the material shakes, the protective plate moves adaptively and the sixth telescopic spring deforms adaptively, thereby achieving a protective effect and preventing the material from flying out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the lifting frame of the present invention.

[0019] Figure 3 It is a schematic diagram of the first three-dimensional structure of the protection mechanism of the present invention.

[0020] Figure 4 It is a schematic diagram of the second three-dimensional structure of the protection mechanism of the present invention.

[0021] Figure 5 It is a schematic diagram of the first three-dimensional structure of the emergency stop mechanism of the present invention.

[0022] Figure 6 It is a schematic diagram of a second partial cross-sectional three-dimensional structure of the emergency stop mechanism of the present invention.

[0023] Figure 7 It is a schematic diagram of the first three-dimensional structure of the weight limiting mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of a second partial cross-sectional three-dimensional structure of the weight limiting mechanism of the present invention.

[0025] Fig. 9 It is a schematic diagram of the third three-dimensional structure of the weight limiting mechanism of the present invention.

[0026] Fig.10 It is a schematic diagram of the first three-dimensional structure of the limiting mechanism of the present invention.

[0027] Fig.11 It is a schematic diagram of a second cross-sectional three-dimensional structure of the limiting mechanism of the present invention.

[0028] Fig.12 It is a schematic diagram of the first three-dimensional structure of the shock absorbing mechanism of the present invention.

[0029] Fig.13 It is a schematic diagram of a second cross-sectional three-dimensional structure of the shock absorbing mechanism of the present invention.

[0030] Fig.14 It is a schematic diagram of the first three-dimensional structure of the telescopic mechanism of the present invention.

[0031] Fig.15 It is a schematic diagram of a second three-dimensional structure of the telescopic mechanism of the present invention.

[0032] Among them: 1-mobile frame, 11-support frame, 12-first guide rod, 13-first motor, 14-mounting frame, 15-rotating rod, 16-elastic rope, 17-placing frame, 2-protection mechanism, 21-second motor, 22-bidirectional screw rod, 23-first slider, 24-first rotating plate, 25-pressing plate, 3-emergency stop mechanism, 31-fixed frame, 32-clamp rod, 33-first telescopic spring, 34-pull ring, 4-weight limit mechanism, 41-slide rail, 42-second rotating plate, 4 3-bit clamp, 44-second guide rod, 45-second telescopic spring, 46-wedge frame, 47-torsion spring, 48-second slider, 49-telescopic frame, 5-limiting mechanism, 51-sliding frame, 52-conical block, 53-third telescopic spring, 54-fourth telescopic spring, 6-shock absorbing mechanism, 61-support frame, 62-telescopic rod, 63-fifth telescopic spring, 64-shock absorbing plate, 7-telescopic mechanism, 71-sliding rod, 72-sixth telescopic spring, 73-protective plate. DETAILED DESCRIPTION

[0033] Below, the present invention is further described in conjunction with the accompanying drawings and specific embodiments: Example 1

[0034] A construction material lifting protection device, now reference Figure 1 and Figure 2 , including a mobile frame 1, a support frame 11, a first guide rod 12, a first motor 13, a mounting frame 14, a rotating rod 15, an elastic rope 16, a placement frame 17, a protection mechanism 2 and an emergency stop mechanism 3. The support frame 11 is welded on the top of the mobile frame 1, and the first guide rod 12 is welded on both sides of the left and right sides between the support frame 11 and the mobile frame 1. Two mounting frames 14 are welded on both sides of the top of the mobile frame 1. There are four mounting frames 14. Two first motors 13 are fixedly connected to the front side of the top of the mobile frame 1 by bolts. The two mounting frames 14 on the left are rotatably connected. There is a rotating rod 15, and the rotating rod 15 is rotatably connected between the two mounting frames 14 on the right side. The output shaft of the first motor 13 on the left side is connected to the rotating rod 15 on the left side, and the output shaft of the first motor 13 on the right side is connected to the rotating rod 15 on the right side. A placement frame 17 is slidably connected between the two first guide rods 12. An elastic rope 16 is wound around the rotating rod 15 on the left side. The elastic rope 16 bypasses the support frame 11 and passes through the placement frame 17 and is wound around the rotating rod 15 on the right side. A protective mechanism 2 is provided on the upper side of the placement frame 17, and an emergency stop mechanism 3 is provided between the elastic rope 16 and the placement frame 17.

[0035] Reference Figure 1 , Figure 3 and Figure 4The protection mechanism 2 includes a second motor 21, a bidirectional screw rod 22, a first slider 23, a first rotating plate 24 and a pressure plate 25. The second motor 21 is fixedly connected to the upper left side of the placement frame 17 by bolts. The output shaft of the second motor 21 is connected with the bidirectional screw rod 22, and the bidirectional screw rod 22 is rotatably connected to the placement frame 17. Two first sliders 23 are threadedly connected to the bidirectional screw rod 22, and the two first sliders 23 are rotatably connected with the first rotating plate 24. A pressure plate 25 is connected between the two first rotating plates 24, and the first rotating plate 24 is rotatably connected to the pressure plate 25. The output shaft of the second motor 21 rotates to drive the bidirectional screw rod 22 to rotate, the first rotating plate 24 rotates, and the pressure plate 25 moves downward to cover the placement frame 17.

[0036] Reference Figure 1 , Figure 5 and Figure 6 The emergency stop mechanism 3 includes a fixed frame 31, a clamping rod 32, a first telescopic spring 33 and a pull ring 34. The fixed frames 31 are welded on the left and right sides of the upper part of the placement frame 17. The two fixed frames 31 are slidably connected with the clamping rod 32. After the clamping rod 32 moves, it passes through the first guide rod 12. The first telescopic spring 33 is connected between the fixed frame 31 and the clamping rod 32 sliding thereon. The first telescopic spring 33 is wound around the clamping rod 32. The inner side of the clamping rod 32 is connected with a pull ring 34. The pull ring 34 is slidably connected to the elastic rope 16. When the elastic rope 16 breaks, the first telescopic spring 33 is reset to drive the clamping rod 32 to move outward through the first guide rod 12.

[0037] When people need to lift materials, this construction material lifting protection device can be used. First, people move the construction material lifting protection device to a suitable position to move the mobile frame 1, and people put the materials into the placement frame 17. After the placement is completed, people start the second motor 21. The output shaft of the second motor 21 rotates to drive the bidirectional screw rod 22 to rotate, so that the first slider 23 moves inward, the first rotating plate 24 rotates, and the pressing plate 25 moves downward. When the pressing plate 25 moves downward to cover the placement frame 17, people turn off the second motor 21. To achieve a covering effect and prevent the material in the placement frame 17 from being shaken out, people start the first motor 13, and the output shaft of the first motor 13 rotates to drive the rotating rod 15 to rotate, and then the rotating rod 15 winds the elastic rope 16, so that the placement frame 17 and the material move upward. In the process of the placement frame 17 moving upward, when the elastic rope 16 breaks, people turn off the first motor 13, and the elastic rope 16 breaks away from the pull ring 34. Then the stretched first telescopic spring 33 resets and drives the clamping rod 32 to move outward through the first guide rod 12, so as to achieve an emergency stop effect and prevent the placement The frame 17 collides with the mobile frame 1 and is damaged. Then, people replace the elastic rope 16 and manually pull the pull ring 34 inward, so that the clamping rod 32 moves inward, the first telescopic spring 33 is stretched, the elastic rope 16 passes through the pull ring 34 and is wound around the rotating rod 15, and the first motor 13 is started. When the placement frame 17 moves upward to a suitable position, people turn off the first motor 13 and start the second motor 21. The output shaft of the second motor 21 rotates in the reverse direction to drive the bidirectional screw rod 22 to rotate in the reverse direction, so that the first slider 23 moves outward, and the first rotating plate 24 rotates in the reverse direction. Rotate, and then the pressure plate 25 moves upward. When the pressure plate 25 moves upward to a suitable position, people turn off the second motor 21, and then people take out the materials in the placement frame 17. After taking them out, people start the first motor 13, and the output shaft of the first motor 13 rotates in the reverse direction to drive the rotating rod 15 to rotate in the reverse direction, and then the elastic rope 16 is released, so that the placement frame 17 moves downward. When the placement frame 17 moves downward to a suitable position, people turn off the first motor 13. When people do not need to lift materials, people can move the material lifting and protection device for construction projects to a suitable position. Example 2

[0038] Based on Example 1, now refer to Figure 1 , Figure 7 , Figure 8 and Fig. 9, also includes a limited weight mechanism 4, the weight limiting mechanism 4 includes a slide rail 41, a second rotating plate 42, a clamping clip 43, a second guide rod 44, a second telescopic spring 45, a wedge frame 46, a torsion spring 47, a second slider 48 and a telescopic frame 49, the front and rear sides of the lower part of the placement frame 17 are connected to the telescopic frame 49, the slide rail 41 is connected between the two telescopic frames 49, the lower part of the placement frame 17 is rotatably connected to the second rotating plate 42 on both sides, a second guide rod 44 is welded in the slide rail 41, two second sliders 48 are slidably connected to the second guide rod 44, the second rotating plate 42 is rotatably connected to the second slider 48, the second telescopic spring 45 is connected between the second slider 48 and the slide rail 41, and the second telescopic spring 45 is connected between the second slider 48 and the slide rail 41. The spring 45 is wound around the second guide rod 44, and a wedge frame 46 is welded to the outer side of the two second sliding blocks 48. The outer side of the wedge frame 46 is triangular in shape. Two clamping clips 43 are rotatably connected to the left and right sides of the slide rail 41. There are four clamping clips 43. After the clamping clip 43 rotates, it contacts the first guide rod 12. After the wedge frame 46 moves, it contacts the clamping clip 43. Torsion springs 47 are connected between the clamping clip 43 and the slide rail 41. The torsion spring 47 is wound around the slide rail 41. There are four torsion springs 47. The placement frame 17 moves downward to drive the second rotating plate 42 to rotate, and the wedge frame 46 moves outward to contact the clamping clip 43. The second telescopic spring 45 is compressed, and the clamping clip 43 rotates to clamp the first guide rod 12.

[0039] Reference Figure 1 , Fig.10 and Fig.11 , also includes a limiting mechanism 5, the limiting mechanism 5 includes a sliding frame 51, a conical block 52, a third telescopic spring 53 and a fourth telescopic spring 54, the two fixed frames 31 are slidably connected with the sliding frame 51, the clamping rod 32 contacts with the sliding frame 51 after moving, two third telescopic springs 53 are connected between the fixed frame 31 and the sliding frame 51 sliding thereon, there are four third telescopic springs 53, the third telescopic spring 53 is wound around the sliding frame 51, the two sliding frames 51 are slidably connected with the conical block 52, the conical block 52 contacts with the first guide rod 12 after moving, the conical block 52 is used to be clamped on the first guide rod 12, the fourth telescopic spring 54 is connected between the sliding frame 51 and the conical block 52 sliding thereon, the fourth telescopic spring 54 is wound around the conical block 52, the clamping rod 32 contacts with the sliding frame 51 after moving, the sliding frame 51 moves outward, the conical block 52 moves outward, and the third telescopic spring 53 is stretched.

[0040] Reference Figure 1 , Fig.12 and Fig.13, also includes a shock absorbing mechanism 6, the shock absorbing mechanism 6 includes a support frame 61, a telescopic rod 62, a fifth telescopic spring 63 and a shock absorbing plate 64, support frames 61 are welded on both the front and rear sides of the top of the mobile frame 1, five telescopic rods 62 are evenly connected in the support frame 61, there are ten telescopic rods 62, and shock absorbing plates 64 are connected between the five telescopic rods 62 in the same support frame 61, the placement frame 17 is in contact with the shock absorbing plate 64, and the fifth telescopic spring 63 is connected between the telescopic rod 62 and the shock absorbing plate 64, there are ten fifth telescopic springs 63, and the fifth telescopic spring 63 is wound on the telescopic rod 62, the placement frame 17 moves downward and contacts with the shock absorbing plate 64, the shock absorbing plate 64 moves downward adaptively, the fifth telescopic spring 63 is compressed, and the telescopic rod 62 is shortened.

[0041] Reference Figure 1 , Fig.14 and Fig.15 , also includes a telescopic mechanism 7, the telescopic mechanism 7 includes a slide bar 71, a sixth telescopic spring 72 and a protective plate 73, the front and rear sides of the pressure plate 25 are slidably connected with the slide bar 71, a protective plate 73 is connected between the two slide bars 71, two sixth telescopic springs 72 are connected between the protective plate 73 and the pressure plate 25, the sixth telescopic spring 72 is wound around the slide bar 71, the pressure plate 25 moves downward to drive the slide bar 71 and the protective plate 73 to move downward, the protective plate 73 contacts with the material, the material shakes, the protective plate 73 and the slide bar 71 move up and down adaptively, and the sixth telescopic spring 72 deforms adaptively.

[0042] The placement frame 17 moves to drive the telescopic frame 49 and the slide rail 41 to move. When the slide rail 41 moves to contact with the moving frame 1, people place the material in the placement frame 17 according to the above steps. When the material is overweight, the elastic rope 16 is stretched, the placement frame 17 moves downward to drive the second rotating plate 42 to rotate, and the telescopic frame 49 is shortened, so that the second slider 48 and the wedge frame 46 move outward, and the second telescopic spring 45 is compressed. When the wedge frame 46 moves outward and contacts with the clamping clamp 43, the clamping clamp 43 rotates to clamp the first guide rod 12. The torsion spring 47 is twisted and deformed to achieve the weight limiting effect, and people can then take out some of the materials in the placement frame 17. When the materials in the placement frame 17 are not overweight, the elastic rope 16 resets and pulls the placement frame 17 upward a certain distance, the second telescopic spring 45 resets and drives the second slider 48 to move inward, the wedge frame 46 moves inward, and the second rotating plate 42 rotates in the opposite direction. When the wedge frame 46 moves inward away from the positioning clamp 43, the torsion spring 47 resets and drives the positioning clamp 43 to rotate in the opposite direction away from the first guide rod 12.

[0043] The movement of the fixed frame 31 drives the sliding frame 51 to move, thereby moving the conical block 52. When the conical block 52 moves and contacts the first guide rod 12, the conical block 52 moves inward, so that the fourth telescopic spring 54 is compressed. When the conical block 52 moves away from the first guide rod 12, the fourth telescopic spring 54 resets and drives the conical block 52 to move outward. When the clamping rod 32 moves outward and contacts the sliding frame 51, the clamping rod 32 drives the sliding frame 51 to move outward, and then the third telescopic spring 53 is stretched, and the conical block 52 moves inward and is clamped in the first guide rod 12, thereby achieving the limiting effect. When the clamping rod 32 moves outward and away from the sliding frame 51, the third telescopic spring 53 resets and drives the sliding frame 51 to move inward, so that the conical block 52 moves inward.

[0044] When the placement frame 17 moves downward and contacts the shock absorbing plate 64, the placement frame 17 drives the shock absorbing plate 64 to move downward, thereby shortening the telescopic rod 62 and compressing the fifth telescopic spring 63, thereby achieving a shock absorbing effect and avoiding excessive impact force of the placement frame 17 moving downward. When the placement frame 17 moves upward away from the shock absorbing plate 64, the fifth telescopic spring 63 resets and drives the shock absorbing plate 64 to move upward, and the telescopic rod 62 extends.

[0045] When the pressing plate 25 moves downward, the pressing plate 25 drives the sliding bar 71 and the protective plate 73 to move downward through the sixth telescopic spring 72. When the protective plate 73 moves downward and contacts the material, the pressing plate 25 continues to move downward, and the protective plate 73 adaptively moves upward, and the sixth telescopic spring 72 is compressed. When the material vibrates, the protective plate 73 adaptively moves up and down, and the sixth telescopic spring 72 adaptively deforms, thereby achieving a protective effect to prevent the material from being thrown out. When the pressing plate 25 moves upward, the pressing plate 25 drives the sliding bar 71 and the protective plate 73 to move upward through the sixth telescopic spring 72. When the protective plate 73 moves upward away from the material, the sixth telescopic spring 72 resets and drives the protective plate 73 to move downward and reset.

[0046] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A construction material lifting and protection device, characterized in that: Included are: A movable frame (1) and a supporting frame (11), wherein the top of the movable frame (1) is connected to the supporting frame (11); A first guide rod (12), with the first guide rod (12) being connected to both left and right sides between the support frame (11) and the movable frame (1); A first motor (13), wherein the first motor (13) is mounted on the front side of the top of the moving frame (1); A mounting frame (14), the left and right sides of the top of the mobile frame (1) are both connected to the mounting frame (14); A rotating rod (15) is rotatably connected between the mounting frames (14) on the left side, a rotating rod (15) is rotatably connected between the mounting frames (14) on the right side, an output shaft of the first motor (13) on the left side is connected to the rotating rod (15) on the left side, and an output shaft of the first motor (13) on the right side is connected to the rotating rod (15) on the right side; A placement frame (17) is slidably connected between the first guide rods (12); An elastic cord (16) is wound around the rotating rod (15) on the left side, and the elastic cord (16) is wound around the supporting frame (11) and through the placement frame (17) and wound around the rotating rod (15) on the right side; A protective mechanism (2), wherein the upper side of the placement frame (17) is provided with a protective mechanism (2) for covering the placement frame (17); An emergency stop mechanism (3) is provided between the elastic rope (16) and the placement frame (17) and is used to clamp the placement frame (17).

2. A construction material lifting and protection device as claimed in claim 1, characterized in that: The protection mechanism (2) comprises: A second motor (21), the second motor (21) being installed on the left side of the upper portion of the placement frame (17); A bidirectional screw rod (22), the output shaft of the second motor (21) is connected with the bidirectional screw rod (22), and the bidirectional screw rod (22) is rotatably connected to the placement frame (17); A first slider (23), the bidirectional screw rod (22) being threadedly connected to the first slider (23); A first rotating plate (24), to which the first sliding block (23) is rotatably connected; The pressing plate (25) is connected between the pressing plate (25) and the first rotating plate (24), and the first rotating plate (24) and the pressing plate (25) are rotatably connected.

3. A construction material lifting and protection device as claimed in claim 2, characterized in that: The emergency stop mechanism (3) comprises: A fixing frame (31), the upper left and right sides of the placement frame (17) are connected to the fixing frame (31); The clamping rod (32) is slidably connected to the fixing frame (31), and the clamping rod (32) passes through the first guide rod (12) after moving; A first telescopic spring (33) is connected between the fixing frame (31) and a clamping rod (32) sliding on the fixing frame (31), and the first telescopic spring (33) is wound around the clamping rod (32).

4. A construction material lifting and protection device as claimed in claim 3, characterized in that: The pull ring (34) is connected to the inner side of the clamping rod (32), and the pull ring (34) is connected to the elastic rope (16) in a sliding manner.

5. A construction material lifting and protection device as claimed in claim 3, characterized in that: The invention also includes a weight limiting mechanism (4) for indicating that the material is overweight. The weight limiting mechanism (4) includes: A telescopic frame (49), the front and rear sides of the lower part of the placement frame (17) are connected to the telescopic frame (49); The slide rail (41) is connected between the telescopic frame (49); A second rotating plate (42), the left and right sides of the lower part of the placement frame (17) are rotatably connected to the second rotating plate (42); A second guide rod (44), the slide rail (41) being connected with the second guide rod (44); A second slider (48), the second guide rod (44) being slidably connected to the second slider (48), and the second rotating plate (42) being rotatably connected to the second slider (48); A wedge-shaped frame (46), the outer side of the second sliding block (48) is connected to the wedge-shaped frame (46); A clamp (43), the left and right sides of the slide rail (41) are both rotatably connected with the clamp (43); A torsion spring (47) is connected between the clamp (43) and the slide rail (41), and the torsion spring (47) is wound around the slide rail (41).

6. A construction material lifting and protection device as claimed in claim 5, characterized in that: The wedge-shaped frame (46) is triangular in shape outside.

7. A construction material lifting and protection device as claimed in claim 5, characterized in that: A second telescopic spring (45) is connected between the second sliding block (48) and the slide rail (41), and the second telescopic spring (45) is wound around the second guide rod (44).

8. A construction material lifting and protection device as claimed in claim 5, characterized in that: It also includes a limiting mechanism (5) for clamping the placement frame (17), and the limiting mechanism (5) includes: The sliding frame (51) is slidably connected to the fixed frame (31); A third telescopic spring (53), wherein the third telescopic spring (53) is connected between the fixed frame (31) and the sliding frame (51) sliding thereon, and the third telescopic spring (53) is wound around the sliding frame (51); The conical block (52) is slidably connected to the sliding frame (51); A fourth telescopic spring (54) is connected between the sliding frame (51) and the conical block (52) sliding thereon, and the fourth telescopic spring (54) is wound around the conical block (52).

9. A construction material lifting and protection device as claimed in claim 8, characterized in that: It also includes a shock absorbing mechanism (6) for buffering the placement frame (17), and the shock absorbing mechanism (6) includes: A support frame (61), the front and rear sides of the top of the mobile frame (1) are both connected to the support frame (61); Telescopic rods (62), the supporting frame (61) is evenly connected with the telescopic rods (62); A shock absorbing plate (64), wherein the telescopic rods (62) in the same support frame (61) are all connected with the shock absorbing plate (64); A fifth telescopic spring (63) is connected between the telescopic rod (62) and the shock absorbing plate (64), and the fifth telescopic spring (63) is wound around the telescopic rod (62).

10. A construction material lifting and protection device as claimed in claim 9, characterized in that: It also includes a telescopic mechanism (7) for limiting the shaking of the material, and the telescopic mechanism (7) includes: A slide bar (71), both front and rear sides of the pressing plate (25) are slidably connected with the slide bar (71); A protective plate (73) is connected between the slide bars (71); A sixth telescopic spring (72) is connected between the protective plate (73) and the pressing plate (25), and the sixth telescopic spring (72) is wound around the sliding rod (71).

Images